[FFmpeg-cvslog] Add HEVC decoder
Guillaume Martres
git at videolan.org
Fri Nov 1 17:19:06 CET 2013
ffmpeg | branch: master | Guillaume Martres <smarter at ubuntu.com> | Sun Aug 11 09:02:07 2013 +0200| [064698d381e1e7790f21b0199a8930ea04e2e942] | committer: Anton Khirnov
Add HEVC decoder
Initially written by Guillaume Martres <smarter at ubuntu.com> as a GSoC
project. Further contributions by the OpenHEVC project and other
developers, namely:
Mickaël Raulet <mraulet at insa-rennes.fr>
Seppo Tomperi <seppo.tomperi at vtt.fi>
Gildas Cocherel <gildas.cocherel at laposte.net>
Khaled Jerbi <khaled_jerbi at yahoo.fr>
Wassim Hamidouche <wassim.hamidouche at insa-rennes.fr>
Vittorio Giovara <vittorio.giovara at gmail.com>
Jan Ekström <jeebjp at gmail.com>
Anton Khirnov <anton at khirnov.net>
Martin Storsjö <martin at martin.st>
Luca Barbato <lu_zero at gentoo.org>
Yusuke Nakamura <muken.the.vfrmaniac at gmail.com>
Reimar Döffinger <Reimar.Doeffinger at gmx.de>
Diego Biurrun <diego at biurrun.de>
Signed-off-by: Anton Khirnov <anton at khirnov.net>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=064698d381e1e7790f21b0199a8930ea04e2e942
---
Changelog | 1 +
configure | 1 +
doc/general.texi | 1 +
libavcodec/Makefile | 4 +
libavcodec/allcodecs.c | 2 +
libavcodec/avcodec.h | 1 +
libavcodec/cabac_functions.h | 20 +
libavcodec/codec_desc.c | 7 +
libavcodec/hevc.c | 3117 ++++++++++++++++++++++++++++++++++++++++
libavcodec/hevc.h | 1066 ++++++++++++++
libavcodec/hevc_cabac.c | 872 +++++++++++
libavcodec/hevc_filter.c | 745 ++++++++++
libavcodec/hevc_mvs.c | 816 +++++++++++
libavcodec/hevc_parser.c | 125 ++
libavcodec/hevc_ps.c | 1329 +++++++++++++++++
libavcodec/hevc_refs.c | 489 +++++++
libavcodec/hevc_sei.c | 124 ++
libavcodec/hevcdsp.c | 190 +++
libavcodec/hevcdsp_template.c | 1340 +++++++++++++++++
libavcodec/hevcpred.c | 65 +
libavcodec/hevcpred_template.c | 560 ++++++++
libavcodec/version.h | 2 +-
22 files changed, 10876 insertions(+), 1 deletion(-)
diff --git a/Changelog b/Changelog
index de622d3..259a857 100644
--- a/Changelog
+++ b/Changelog
@@ -41,6 +41,7 @@ version 10:
- Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
- F4V muxer
- HNM version 4 demuxer and video decoder
+- HEVC decoder
version 9:
diff --git a/configure b/configure
index ebd21b2..f72db76 100755
--- a/configure
+++ b/configure
@@ -1599,6 +1599,7 @@ h263i_decoder_select="h263_decoder"
h263p_encoder_select="h263_encoder"
h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
h264_decoder_suggest="error_resilience"
+hevc_decoder_select="dsputil golomb videodsp"
huffyuv_decoder_select="dsputil"
huffyuv_encoder_select="dsputil huffman"
iac_decoder_select="dsputil fft mdct sinewin"
diff --git a/doc/general.texi b/doc/general.texi
index c50e89f..9da4a66 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -526,6 +526,7 @@ following image formats are supported:
@item H.263+ / H.263-1998 / H.263 version 2 @tab X @tab X
@item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 @tab E @tab X
@tab encoding supported through external library libx264
+ at item HEVC @tab @tab X
@item HNM version 4 @tab @tab X
@item HuffYUV @tab X @tab X
@item HuffYUV FFmpeg variant @tab X @tab X
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index ffee97a..b3ecf79 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -196,6 +196,9 @@ OBJS-$(CONFIG_H264_DECODER) += h264.o \
h264_loopfilter.o h264_direct.o \
cabac.o h264_sei.o h264_ps.o \
h264_refs.o h264_cavlc.o h264_cabac.o
+OBJS-$(CONFIG_HEVC_DECODER) += hevc.o hevc_mvs.o hevc_ps.o hevc_sei.o \
+ hevc_cabac.o hevc_refs.o hevcpred.o \
+ hevcdsp.o hevc_filter.o cabac.o
OBJS-$(CONFIG_HNM4_VIDEO_DECODER) += hnm4video.o
OBJS-$(CONFIG_HUFFYUV_DECODER) += huffyuv.o huffyuvdec.o
OBJS-$(CONFIG_HUFFYUV_ENCODER) += huffyuv.o huffyuvenc.o
@@ -635,6 +638,7 @@ OBJS-$(CONFIG_H264_PARSER) += h264_parser.o h264.o \
h264_refs.o h264_sei.o h264_direct.o \
h264_loopfilter.o h264_cabac.o \
h264_cavlc.o h264_ps.o
+OBJS-$(CONFIG_HEVC_PARSER) += hevc_parser.o
OBJS-$(CONFIG_MJPEG_PARSER) += mjpeg_parser.o
OBJS-$(CONFIG_MLP_PARSER) += mlp_parser.o mlp.o
OBJS-$(CONFIG_MPEG4VIDEO_PARSER) += mpeg4video_parser.o h263.o \
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index b62efb9..6172466 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -153,6 +153,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(H263I, h263i);
REGISTER_ENCODER(H263P, h263p);
REGISTER_DECODER(H264, h264);
+ REGISTER_DECODER(HEVC, hevc);
REGISTER_DECODER(HNM4_VIDEO, hnm4_video);
REGISTER_ENCDEC (HUFFYUV, huffyuv);
REGISTER_DECODER(IDCIN, idcin);
@@ -453,6 +454,7 @@ void avcodec_register_all(void)
REGISTER_PARSER(H261, h261);
REGISTER_PARSER(H263, h263);
REGISTER_PARSER(H264, h264);
+ REGISTER_PARSER(HEVC, hevc);
REGISTER_PARSER(MJPEG, mjpeg);
REGISTER_PARSER(MLP, mlp);
REGISTER_PARSER(MPEG4VIDEO, mpeg4video);
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index a4a0446..ac086aa 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -275,6 +275,7 @@ enum AVCodecID {
AV_CODEC_ID_G2M,
AV_CODEC_ID_WEBP,
AV_CODEC_ID_HNM4_VIDEO,
+ AV_CODEC_ID_HEVC,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
diff --git a/libavcodec/cabac_functions.h b/libavcodec/cabac_functions.h
index afc7c98..11c9646 100644
--- a/libavcodec/cabac_functions.h
+++ b/libavcodec/cabac_functions.h
@@ -162,4 +162,24 @@ static int av_unused get_cabac_terminate(CABACContext *c){
}
}
+/**
+ * Skip @p n bytes and reset the decoder.
+ * @return the address of the first skipped byte or NULL if there's less than @p n bytes left
+ */
+static av_unused const uint8_t* skip_bytes(CABACContext *c, int n) {
+ const uint8_t *ptr = c->bytestream;
+
+ if (c->low & 0x1)
+ ptr--;
+#if CABAC_BITS == 16
+ if (c->low & 0x1FF)
+ ptr--;
+#endif
+ if ((int) (c->bytestream_end - ptr) < n)
+ return NULL;
+ ff_init_cabac_decoder(c, ptr + n, c->bytestream_end - ptr - n);
+
+ return ptr;
+}
+
#endif /* AVCODEC_CABAC_FUNCTIONS_H */
diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c
index ddeca8a..73e8f6d 100644
--- a/libavcodec/codec_desc.c
+++ b/libavcodec/codec_desc.c
@@ -1243,6 +1243,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
.long_name = NULL_IF_CONFIG_SMALL("HNM 4 video"),
.props = AV_CODEC_PROP_LOSSY,
},
+ {
+ .id = AV_CODEC_ID_HEVC,
+ .type = AVMEDIA_TYPE_VIDEO,
+ .name = "hevc",
+ .long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
+ .props = AV_CODEC_PROP_LOSSY,
+ },
/* various PCM "codecs" */
{
diff --git a/libavcodec/hevc.c b/libavcodec/hevc.c
new file mode 100644
index 0000000..276f3fd
--- /dev/null
+++ b/libavcodec/hevc.c
@@ -0,0 +1,3117 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2012 - 2013 Mickael Raulet
+ * Copyright (C) 2012 - 2013 Gildas Cocherel
+ * Copyright (C) 2012 - 2013 Wassim Hamidouche
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+#include "libavutil/internal.h"
+#include "libavutil/md5.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+
+#include "bytestream.h"
+#include "cabac_functions.h"
+#include "dsputil.h"
+#include "golomb.h"
+#include "hevc.h"
+
+const uint8_t ff_hevc_qpel_extra_before[4] = { 0, 3, 3, 2 };
+const uint8_t ff_hevc_qpel_extra_after[4] = { 0, 3, 4, 4 };
+const uint8_t ff_hevc_qpel_extra[4] = { 0, 6, 7, 6 };
+
+static const uint8_t scan_1x1[1] = { 0 };
+
+static const uint8_t horiz_scan2x2_x[4] = { 0, 1, 0, 1 };
+
+static const uint8_t horiz_scan2x2_y[4] = { 0, 0, 1, 1 };
+
+static const uint8_t horiz_scan4x4_x[16] = {
+ 0, 1, 2, 3,
+ 0, 1, 2, 3,
+ 0, 1, 2, 3,
+ 0, 1, 2, 3,
+};
+
+static const uint8_t horiz_scan4x4_y[16] = {
+ 0, 0, 0, 0,
+ 1, 1, 1, 1,
+ 2, 2, 2, 2,
+ 3, 3, 3, 3,
+};
+
+static const uint8_t horiz_scan8x8_inv[8][8] = {
+ { 0, 1, 2, 3, 16, 17, 18, 19, },
+ { 4, 5, 6, 7, 20, 21, 22, 23, },
+ { 8, 9, 10, 11, 24, 25, 26, 27, },
+ { 12, 13, 14, 15, 28, 29, 30, 31, },
+ { 32, 33, 34, 35, 48, 49, 50, 51, },
+ { 36, 37, 38, 39, 52, 53, 54, 55, },
+ { 40, 41, 42, 43, 56, 57, 58, 59, },
+ { 44, 45, 46, 47, 60, 61, 62, 63, },
+};
+
+static const uint8_t diag_scan2x2_x[4] = { 0, 0, 1, 1 };
+
+static const uint8_t diag_scan2x2_y[4] = { 0, 1, 0, 1 };
+
+static const uint8_t diag_scan2x2_inv[2][2] = {
+ { 0, 2, },
+ { 1, 3, },
+};
+
+const uint8_t ff_hevc_diag_scan4x4_x[16] = {
+ 0, 0, 1, 0,
+ 1, 2, 0, 1,
+ 2, 3, 1, 2,
+ 3, 2, 3, 3,
+};
+
+const uint8_t ff_hevc_diag_scan4x4_y[16] = {
+ 0, 1, 0, 2,
+ 1, 0, 3, 2,
+ 1, 0, 3, 2,
+ 1, 3, 2, 3,
+};
+
+static const uint8_t diag_scan4x4_inv[4][4] = {
+ { 0, 2, 5, 9, },
+ { 1, 4, 8, 12, },
+ { 3, 7, 11, 14, },
+ { 6, 10, 13, 15, },
+};
+
+const uint8_t ff_hevc_diag_scan8x8_x[64] = {
+ 0, 0, 1, 0,
+ 1, 2, 0, 1,
+ 2, 3, 0, 1,
+ 2, 3, 4, 0,
+ 1, 2, 3, 4,
+ 5, 0, 1, 2,
+ 3, 4, 5, 6,
+ 0, 1, 2, 3,
+ 4, 5, 6, 7,
+ 1, 2, 3, 4,
+ 5, 6, 7, 2,
+ 3, 4, 5, 6,
+ 7, 3, 4, 5,
+ 6, 7, 4, 5,
+ 6, 7, 5, 6,
+ 7, 6, 7, 7,
+};
+
+const uint8_t ff_hevc_diag_scan8x8_y[64] = {
+ 0, 1, 0, 2,
+ 1, 0, 3, 2,
+ 1, 0, 4, 3,
+ 2, 1, 0, 5,
+ 4, 3, 2, 1,
+ 0, 6, 5, 4,
+ 3, 2, 1, 0,
+ 7, 6, 5, 4,
+ 3, 2, 1, 0,
+ 7, 6, 5, 4,
+ 3, 2, 1, 7,
+ 6, 5, 4, 3,
+ 2, 7, 6, 5,
+ 4, 3, 7, 6,
+ 5, 4, 7, 6,
+ 5, 7, 6, 7,
+};
+
+static const uint8_t diag_scan8x8_inv[8][8] = {
+ { 0, 2, 5, 9, 14, 20, 27, 35, },
+ { 1, 4, 8, 13, 19, 26, 34, 42, },
+ { 3, 7, 12, 18, 25, 33, 41, 48, },
+ { 6, 11, 17, 24, 32, 40, 47, 53, },
+ { 10, 16, 23, 31, 39, 46, 52, 57, },
+ { 15, 22, 30, 38, 45, 51, 56, 60, },
+ { 21, 29, 37, 44, 50, 55, 59, 62, },
+ { 28, 36, 43, 49, 54, 58, 61, 63, },
+};
+
+/**
+ * NOTE: Each function hls_foo correspond to the function foo in the
+ * specification (HLS stands for High Level Syntax).
+ */
+
+/**
+ * Section 5.7
+ */
+
+/* free everything allocated by pic_arrays_init() */
+static void pic_arrays_free(HEVCContext *s)
+{
+ av_freep(&s->sao);
+ av_freep(&s->deblock);
+ av_freep(&s->split_cu_flag);
+
+ av_freep(&s->skip_flag);
+ av_freep(&s->tab_ct_depth);
+
+ av_freep(&s->tab_ipm);
+ av_freep(&s->cbf_luma);
+ av_freep(&s->is_pcm);
+
+ av_freep(&s->qp_y_tab);
+ av_freep(&s->tab_slice_address);
+ av_freep(&s->filter_slice_edges);
+
+ av_freep(&s->horizontal_bs);
+ av_freep(&s->vertical_bs);
+
+ av_buffer_pool_uninit(&s->tab_mvf_pool);
+ av_buffer_pool_uninit(&s->rpl_tab_pool);
+}
+
+/* allocate arrays that depend on frame dimensions */
+static int pic_arrays_init(HEVCContext *s, const HEVCSPS *sps)
+{
+ int log2_min_cb_size = sps->log2_min_cb_size;
+ int width = sps->width;
+ int height = sps->height;
+ int pic_size = width * height;
+ int pic_size_in_ctb = ((width >> log2_min_cb_size) + 1) *
+ ((height >> log2_min_cb_size) + 1);
+ int ctb_count = sps->ctb_width * sps->ctb_height;
+ int min_pu_size = sps->min_pu_width * sps->min_pu_height;
+
+ s->bs_width = width >> 3;
+ s->bs_height = height >> 3;
+
+ s->sao = av_mallocz_array(ctb_count, sizeof(*s->sao));
+ s->deblock = av_mallocz_array(ctb_count, sizeof(*s->deblock));
+ s->split_cu_flag = av_malloc(pic_size);
+ if (!s->sao || !s->deblock || !s->split_cu_flag)
+ goto fail;
+
+ s->skip_flag = av_malloc(pic_size_in_ctb);
+ s->tab_ct_depth = av_malloc(sps->min_cb_height * sps->min_cb_width);
+ if (!s->skip_flag || !s->tab_ct_depth)
+ goto fail;
+
+ s->cbf_luma = av_malloc(sps->min_tb_width * sps->min_tb_height);
+ s->tab_ipm = av_malloc(min_pu_size);
+ s->is_pcm = av_malloc(min_pu_size);
+ if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm)
+ goto fail;
+
+ s->filter_slice_edges = av_malloc(ctb_count);
+ s->tab_slice_address = av_malloc(pic_size_in_ctb *
+ sizeof(*s->tab_slice_address));
+ s->qp_y_tab = av_malloc(pic_size_in_ctb *
+ sizeof(*s->qp_y_tab));
+ if (!s->qp_y_tab || !s->filter_slice_edges || !s->tab_slice_address)
+ goto fail;
+
+ s->horizontal_bs = av_mallocz(2 * s->bs_width * (s->bs_height + 1));
+ s->vertical_bs = av_mallocz(2 * s->bs_width * (s->bs_height + 1));
+ if (!s->horizontal_bs || !s->vertical_bs)
+ goto fail;
+
+ s->tab_mvf_pool = av_buffer_pool_init(min_pu_size * sizeof(MvField),
+ av_buffer_alloc);
+ s->rpl_tab_pool = av_buffer_pool_init(ctb_count * sizeof(RefPicListTab),
+ av_buffer_allocz);
+ if (!s->tab_mvf_pool || !s->rpl_tab_pool)
+ goto fail;
+
+ return 0;
+
+fail:
+ pic_arrays_free(s);
+ return AVERROR(ENOMEM);
+}
+
+static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
+{
+ int i = 0;
+ int j = 0;
+ uint8_t luma_weight_l0_flag[16];
+ uint8_t chroma_weight_l0_flag[16];
+ uint8_t luma_weight_l1_flag[16];
+ uint8_t chroma_weight_l1_flag[16];
+
+ s->sh.luma_log2_weight_denom = get_ue_golomb_long(gb);
+ if (s->sps->chroma_format_idc != 0) {
+ int delta = get_se_golomb(gb);
+ s->sh.chroma_log2_weight_denom = av_clip_c(s->sh.luma_log2_weight_denom + delta, 0, 7);
+ }
+
+ for (i = 0; i < s->sh.nb_refs[L0]; i++) {
+ luma_weight_l0_flag[i] = get_bits1(gb);
+ if (!luma_weight_l0_flag[i]) {
+ s->sh.luma_weight_l0[i] = 1 << s->sh.luma_log2_weight_denom;
+ s->sh.luma_offset_l0[i] = 0;
+ }
+ }
+ if (s->sps->chroma_format_idc != 0) { // FIXME: invert "if" and "for"
+ for (i = 0; i < s->sh.nb_refs[L0]; i++)
+ chroma_weight_l0_flag[i] = get_bits1(gb);
+ } else {
+ for (i = 0; i < s->sh.nb_refs[L0]; i++)
+ chroma_weight_l0_flag[i] = 0;
+ }
+ for (i = 0; i < s->sh.nb_refs[L0]; i++) {
+ if (luma_weight_l0_flag[i]) {
+ int delta_luma_weight_l0 = get_se_golomb(gb);
+ s->sh.luma_weight_l0[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l0;
+ s->sh.luma_offset_l0[i] = get_se_golomb(gb);
+ }
+ if (chroma_weight_l0_flag[i]) {
+ for (j = 0; j < 2; j++) {
+ int delta_chroma_weight_l0 = get_se_golomb(gb);
+ int delta_chroma_offset_l0 = get_se_golomb(gb);
+ s->sh.chroma_weight_l0[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l0;
+ s->sh.chroma_offset_l0[i][j] = av_clip_c((delta_chroma_offset_l0 - ((128 * s->sh.chroma_weight_l0[i][j])
+ >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
+ }
+ } else {
+ s->sh.chroma_weight_l0[i][0] = 1 << s->sh.chroma_log2_weight_denom;
+ s->sh.chroma_offset_l0[i][0] = 0;
+ s->sh.chroma_weight_l0[i][1] = 1 << s->sh.chroma_log2_weight_denom;
+ s->sh.chroma_offset_l0[i][1] = 0;
+ }
+ }
+ if (s->sh.slice_type == B_SLICE) {
+ for (i = 0; i < s->sh.nb_refs[L1]; i++) {
+ luma_weight_l1_flag[i] = get_bits1(gb);
+ if (!luma_weight_l1_flag[i]) {
+ s->sh.luma_weight_l1[i] = 1 << s->sh.luma_log2_weight_denom;
+ s->sh.luma_offset_l1[i] = 0;
+ }
+ }
+ if (s->sps->chroma_format_idc != 0) {
+ for (i = 0; i < s->sh.nb_refs[L1]; i++)
+ chroma_weight_l1_flag[i] = get_bits1(gb);
+ } else {
+ for (i = 0; i < s->sh.nb_refs[L1]; i++)
+ chroma_weight_l1_flag[i] = 0;
+ }
+ for (i = 0; i < s->sh.nb_refs[L1]; i++) {
+ if (luma_weight_l1_flag[i]) {
+ int delta_luma_weight_l1 = get_se_golomb(gb);
+ s->sh.luma_weight_l1[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l1;
+ s->sh.luma_offset_l1[i] = get_se_golomb(gb);
+ }
+ if (chroma_weight_l1_flag[i]) {
+ for (j = 0; j < 2; j++) {
+ int delta_chroma_weight_l1 = get_se_golomb(gb);
+ int delta_chroma_offset_l1 = get_se_golomb(gb);
+ s->sh.chroma_weight_l1[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l1;
+ s->sh.chroma_offset_l1[i][j] = av_clip_c((delta_chroma_offset_l1 - ((128 * s->sh.chroma_weight_l1[i][j])
+ >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
+ }
+ } else {
+ s->sh.chroma_weight_l1[i][0] = 1 << s->sh.chroma_log2_weight_denom;
+ s->sh.chroma_offset_l1[i][0] = 0;
+ s->sh.chroma_weight_l1[i][1] = 1 << s->sh.chroma_log2_weight_denom;
+ s->sh.chroma_offset_l1[i][1] = 0;
+ }
+ }
+ }
+}
+
+static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
+{
+ const HEVCSPS *sps = s->sps;
+ int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
+ int prev_delta_msb = 0;
+ int nb_sps = 0, nb_sh;
+ int i;
+
+ rps->nb_refs = 0;
+ if (!sps->long_term_ref_pics_present_flag)
+ return 0;
+
+ if (sps->num_long_term_ref_pics_sps > 0)
+ nb_sps = get_ue_golomb_long(gb);
+ nb_sh = get_ue_golomb_long(gb);
+
+ if (nb_sh + nb_sps > FF_ARRAY_ELEMS(rps->poc))
+ return AVERROR_INVALIDDATA;
+
+ rps->nb_refs = nb_sh + nb_sps;
+
+ for (i = 0; i < rps->nb_refs; i++) {
+ uint8_t delta_poc_msb_present;
+
+ if (i < nb_sps) {
+ uint8_t lt_idx_sps = 0;
+
+ if (sps->num_long_term_ref_pics_sps > 1)
+ lt_idx_sps = get_bits(gb, av_ceil_log2(sps->num_long_term_ref_pics_sps));
+
+ rps->poc[i] = sps->lt_ref_pic_poc_lsb_sps[lt_idx_sps];
+ rps->used[i] = sps->used_by_curr_pic_lt_sps_flag[lt_idx_sps];
+ } else {
+ rps->poc[i] = get_bits(gb, sps->log2_max_poc_lsb);
+ rps->used[i] = get_bits1(gb);
+ }
+
+ delta_poc_msb_present = get_bits1(gb);
+ if (delta_poc_msb_present) {
+ int delta = get_ue_golomb_long(gb);
+
+ if (i && i != nb_sps)
+ delta += prev_delta_msb;
+
+ rps->poc[i] += s->poc - delta * max_poc_lsb - s->sh.pic_order_cnt_lsb;
+ prev_delta_msb = delta;
+ }
+ }
+
+ return 0;
+}
+
+static int set_sps(HEVCContext *s, const HEVCSPS *sps)
+{
+ int ret;
+
+ pic_arrays_free(s);
+ ret = pic_arrays_init(s, sps);
+ if (ret < 0)
+ goto fail;
+
+ s->avctx->coded_width = sps->width;
+ s->avctx->coded_height = sps->height;
+ s->avctx->width = sps->output_width;
+ s->avctx->height = sps->output_height;
+ s->avctx->pix_fmt = sps->pix_fmt;
+ s->avctx->sample_aspect_ratio = sps->vui.sar;
+ s->avctx->has_b_frames = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
+
+ ff_hevc_pred_init(&s->hpc, sps->bit_depth);
+ ff_hevc_dsp_init (&s->hevcdsp, sps->bit_depth);
+ ff_videodsp_init (&s->vdsp, sps->bit_depth);
+
+ if (sps->sao_enabled) {
+ av_frame_unref(s->tmp_frame);
+ ret = ff_get_buffer(s->avctx, s->tmp_frame, AV_GET_BUFFER_FLAG_REF);
+ if (ret < 0)
+ goto fail;
+ s->frame = s->tmp_frame;
+ }
+
+ s->sps = sps;
+ s->vps = s->vps_list[s->sps->vps_id];
+ return 0;
+
+fail:
+ pic_arrays_free(s);
+ s->sps = NULL;
+ return ret;
+}
+
+static int hls_slice_header(HEVCContext *s)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ SliceHeader *sh = &s->sh;
+ int i, ret;
+
+ // Coded parameters
+ sh->first_slice_in_pic_flag = get_bits1(gb);
+ if ((IS_IDR(s) || IS_BLA(s)) && sh->first_slice_in_pic_flag) {
+ s->seq_decode = (s->seq_decode + 1) & 0xff;
+ s->max_ra = INT_MAX;
+ if (IS_IDR(s))
+ ff_hevc_clear_refs(s);
+ }
+ if (s->nal_unit_type >= 16 && s->nal_unit_type <= 23)
+ sh->no_output_of_prior_pics_flag = get_bits1(gb);
+
+ sh->pps_id = get_ue_golomb_long(gb);
+ if (sh->pps_id >= MAX_PPS_COUNT || !s->pps_list[sh->pps_id]) {
+ av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", sh->pps_id);
+ return AVERROR_INVALIDDATA;
+ }
+ if (!sh->first_slice_in_pic_flag &&
+ s->pps != (HEVCPPS*)s->pps_list[sh->pps_id]->data) {
+ av_log(s->avctx, AV_LOG_ERROR, "PPS changed between slices.\n");
+ return AVERROR_INVALIDDATA;
+ }
+ s->pps = (HEVCPPS*)s->pps_list[sh->pps_id]->data;
+
+ if (s->sps != (HEVCSPS*)s->sps_list[s->pps->sps_id]->data) {
+ s->sps = (HEVCSPS*)s->sps_list[s->pps->sps_id]->data;
+
+ ff_hevc_clear_refs(s);
+ ret = set_sps(s, s->sps);
+ if (ret < 0)
+ return ret;
+
+ s->seq_decode = (s->seq_decode + 1) & 0xff;
+ s->max_ra = INT_MAX;
+ }
+
+ sh->dependent_slice_segment_flag = 0;
+ if (!sh->first_slice_in_pic_flag) {
+ int slice_address_length;
+
+ if (s->pps->dependent_slice_segments_enabled_flag)
+ sh->dependent_slice_segment_flag = get_bits1(gb);
+
+ slice_address_length = av_ceil_log2(s->sps->ctb_width *
+ s->sps->ctb_height);
+ sh->slice_segment_addr = get_bits(gb, slice_address_length);
+ if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid slice segment address: %u.\n",
+ sh->slice_segment_addr);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (!sh->dependent_slice_segment_flag) {
+ sh->slice_addr = sh->slice_segment_addr;
+ s->slice_idx++;
+ }
+ } else {
+ sh->slice_segment_addr = sh->slice_addr = 0;
+ s->slice_idx = 0;
+ s->slice_initialized = 0;
+ }
+
+ if (!sh->dependent_slice_segment_flag) {
+ s->slice_initialized = 0;
+
+ for (i = 0; i < s->pps->num_extra_slice_header_bits; i++)
+ skip_bits(gb, 1); // slice_reserved_undetermined_flag[]
+
+ sh->slice_type = get_ue_golomb_long(gb);
+ if (!(sh->slice_type == I_SLICE ||
+ sh->slice_type == P_SLICE ||
+ sh->slice_type == B_SLICE)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Unknown slice type: %d.\n",
+ sh->slice_type);
+ return AVERROR_INVALIDDATA;
+ }
+ if (IS_IRAP(s) && sh->slice_type != I_SLICE) {
+ av_log(s->avctx, AV_LOG_ERROR, "Inter slices in an IRAP frame.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (s->pps->output_flag_present_flag)
+ sh->pic_output_flag = get_bits1(gb);
+
+ if (s->sps->separate_colour_plane_flag)
+ sh->colour_plane_id = get_bits(gb, 2);
+
+ if (!IS_IDR(s)) {
+ int short_term_ref_pic_set_sps_flag, poc;
+
+ sh->pic_order_cnt_lsb = get_bits(gb, s->sps->log2_max_poc_lsb);
+ poc = ff_hevc_compute_poc(s, sh->pic_order_cnt_lsb);
+ if (!sh->first_slice_in_pic_flag && poc != s->poc) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Ignoring POC change between slices: %d -> %d\n", s->poc, poc);
+ if (s->avctx->err_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
+ poc = s->poc;
+ }
+ s->poc = poc;
+
+ short_term_ref_pic_set_sps_flag = get_bits1(gb);
+ if (!short_term_ref_pic_set_sps_flag) {
+ ret = ff_hevc_decode_short_term_rps(s, &sh->slice_rps, s->sps, 1);
+ if (ret < 0)
+ return ret;
+
+ sh->short_term_rps = &sh->slice_rps;
+ } else {
+ int numbits, rps_idx;
+
+ if (!s->sps->nb_st_rps) {
+ av_log(s->avctx, AV_LOG_ERROR, "No ref lists in the SPS.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ numbits = av_ceil_log2(s->sps->nb_st_rps);
+ rps_idx = numbits > 0 ? get_bits(gb, numbits) : 0;
+ sh->short_term_rps = &s->sps->st_rps[rps_idx];
+ }
+
+ ret = decode_lt_rps(s, &sh->long_term_rps, gb);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_WARNING, "Invalid long term RPS.\n");
+ if (s->avctx->err_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (s->sps->sps_temporal_mvp_enabled_flag)
+ sh->slice_temporal_mvp_enabled_flag = get_bits1(gb);
+ else
+ sh->slice_temporal_mvp_enabled_flag = 0;
+ } else {
+ s->sh.short_term_rps = NULL;
+ s->poc = 0;
+ }
+
+ /* 8.3.1 */
+ if (s->temporal_id == 0 &&
+ s->nal_unit_type != NAL_TRAIL_N &&
+ s->nal_unit_type != NAL_TSA_N &&
+ s->nal_unit_type != NAL_STSA_N &&
+ s->nal_unit_type != NAL_RADL_N &&
+ s->nal_unit_type != NAL_RADL_R &&
+ s->nal_unit_type != NAL_RASL_N &&
+ s->nal_unit_type != NAL_RASL_R)
+ s->pocTid0 = s->poc;
+
+ if (s->sps->sao_enabled) {
+ sh->slice_sample_adaptive_offset_flag[0] = get_bits1(gb);
+ sh->slice_sample_adaptive_offset_flag[1] =
+ sh->slice_sample_adaptive_offset_flag[2] = get_bits1(gb);
+ } else {
+ sh->slice_sample_adaptive_offset_flag[0] = 0;
+ sh->slice_sample_adaptive_offset_flag[1] = 0;
+ sh->slice_sample_adaptive_offset_flag[2] = 0;
+ }
+
+ sh->nb_refs[L0] = sh->nb_refs[L1] = 0;
+ if (sh->slice_type == P_SLICE || sh->slice_type == B_SLICE) {
+ int nb_refs;
+
+ sh->nb_refs[L0] = s->pps->num_ref_idx_l0_default_active;
+ if (sh->slice_type == B_SLICE)
+ sh->nb_refs[L1] = s->pps->num_ref_idx_l1_default_active;
+
+ if (get_bits1(gb)) { // num_ref_idx_active_override_flag
+ sh->nb_refs[L0] = get_ue_golomb_long(gb) + 1;
+ if (sh->slice_type == B_SLICE)
+ sh->nb_refs[L1] = get_ue_golomb_long(gb) + 1;
+ }
+ if (sh->nb_refs[L0] > MAX_REFS || sh->nb_refs[L1] > MAX_REFS) {
+ av_log(s->avctx, AV_LOG_ERROR, "Too many refs: %d/%d.\n",
+ sh->nb_refs[L0], sh->nb_refs[L1]);
+ return AVERROR_INVALIDDATA;
+ }
+
+ sh->rpl_modification_flag[0] = 0;
+ sh->rpl_modification_flag[1] = 0;
+ nb_refs = ff_hevc_frame_nb_refs(s);
+ if (!nb_refs) {
+ av_log(s->avctx, AV_LOG_ERROR, "Zero refs for a frame with P or B slices.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (s->pps->lists_modification_present_flag && nb_refs > 1) {
+ sh->rpl_modification_flag[0] = get_bits1(gb);
+ if (sh->rpl_modification_flag[0]) {
+ for (i = 0; i < sh->nb_refs[L0]; i++)
+ sh->list_entry_lx[0][i] = get_bits(gb, av_ceil_log2(nb_refs));
+ }
+
+ if (sh->slice_type == B_SLICE) {
+ sh->rpl_modification_flag[1] = get_bits1(gb);
+ if (sh->rpl_modification_flag[1] == 1)
+ for (i = 0; i < sh->nb_refs[L1]; i++)
+ sh->list_entry_lx[1][i] = get_bits(gb, av_ceil_log2(nb_refs));
+ }
+ }
+
+ if (sh->slice_type == B_SLICE)
+ sh->mvd_l1_zero_flag = get_bits1(gb);
+
+ if (s->pps->cabac_init_present_flag)
+ sh->cabac_init_flag = get_bits1(gb);
+ else
+ sh->cabac_init_flag = 0;
+
+ sh->collocated_ref_idx = 0;
+ if (sh->slice_temporal_mvp_enabled_flag) {
+ sh->collocated_list = L0;
+ if (sh->slice_type == B_SLICE)
+ sh->collocated_list = !get_bits1(gb);
+
+ if (sh->nb_refs[sh->collocated_list] > 1) {
+ sh->collocated_ref_idx = get_ue_golomb_long(gb);
+ if (sh->collocated_ref_idx >= sh->nb_refs[sh->collocated_list]) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid collocated_ref_idx: %d.\n",
+ sh->collocated_ref_idx);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ if ((s->pps->weighted_pred_flag && sh->slice_type == P_SLICE) ||
+ (s->pps->weighted_bipred_flag && sh->slice_type == B_SLICE)) {
+ pred_weight_table(s, gb);
+ }
+
+ sh->max_num_merge_cand = 5 - get_ue_golomb_long(gb);
+ if (sh->max_num_merge_cand < 1 || sh->max_num_merge_cand > 5) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid number of merging MVP candidates: %d.\n",
+ sh->max_num_merge_cand);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ sh->slice_qp_delta = get_se_golomb(gb);
+ if (s->pps->pic_slice_level_chroma_qp_offsets_present_flag) {
+ sh->slice_cb_qp_offset = get_se_golomb(gb);
+ sh->slice_cr_qp_offset = get_se_golomb(gb);
+ } else {
+ sh->slice_cb_qp_offset = 0;
+ sh->slice_cr_qp_offset = 0;
+ }
+
+ if (s->pps->deblocking_filter_control_present_flag) {
+ int deblocking_filter_override_flag = 0;
+
+ if (s->pps->deblocking_filter_override_enabled_flag)
+ deblocking_filter_override_flag = get_bits1(gb);
+
+ if (deblocking_filter_override_flag) {
+ sh->disable_deblocking_filter_flag = get_bits1(gb);
+ if (!sh->disable_deblocking_filter_flag) {
+ sh->beta_offset = get_se_golomb(gb) * 2;
+ sh->tc_offset = get_se_golomb(gb) * 2;
+ }
+ } else {
+ sh->disable_deblocking_filter_flag = s->pps->disable_dbf;
+ sh->beta_offset = s->pps->beta_offset;
+ sh->tc_offset = s->pps->tc_offset;
+ }
+ } else {
+ sh->disable_deblocking_filter_flag = 0;
+ sh->beta_offset = 0;
+ sh->tc_offset = 0;
+ }
+
+ if (s->pps->seq_loop_filter_across_slices_enabled_flag &&
+ (sh->slice_sample_adaptive_offset_flag[0] ||
+ sh->slice_sample_adaptive_offset_flag[1] ||
+ !sh->disable_deblocking_filter_flag)) {
+ sh->slice_loop_filter_across_slices_enabled_flag = get_bits1(gb);
+ } else {
+ sh->slice_loop_filter_across_slices_enabled_flag = s->pps->seq_loop_filter_across_slices_enabled_flag;
+ }
+ } else if (!s->slice_initialized) {
+ av_log(s->avctx, AV_LOG_ERROR, "Independent slice segment missing.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ sh->num_entry_point_offsets = 0;
+ if (s->pps->tiles_enabled_flag || s->pps->entropy_coding_sync_enabled_flag) {
+ sh->num_entry_point_offsets = get_ue_golomb_long(gb);
+ if (sh->num_entry_point_offsets > 0) {
+ int offset_len = get_ue_golomb_long(gb) + 1;
+
+ for (i = 0; i < sh->num_entry_point_offsets; i++)
+ skip_bits(gb, offset_len);
+ }
+ }
+
+ if (s->pps->slice_header_extension_present_flag) {
+ int length = get_ue_golomb_long(gb);
+ for (i = 0; i < length; i++)
+ skip_bits(gb, 8); // slice_header_extension_data_byte
+ }
+
+ // Inferred parameters
+ sh->slice_qp = 26 + s->pps->pic_init_qp_minus26 + sh->slice_qp_delta;
+ sh->slice_ctb_addr_rs = sh->slice_segment_addr;
+
+ s->HEVClc.first_qp_group = !s->sh.dependent_slice_segment_flag;
+
+ if (!s->pps->cu_qp_delta_enabled_flag)
+ s->HEVClc.qp_y = ((s->sh.slice_qp + 52 + 2 * s->sps->qp_bd_offset) %
+ (52 + s->sps->qp_bd_offset)) - s->sps->qp_bd_offset;
+
+ s->slice_initialized = 1;
+
+ return 0;
+}
+
+#define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
+
+#define SET_SAO(elem, value) \
+do { \
+ if (!sao_merge_up_flag && !sao_merge_left_flag) \
+ sao->elem = value; \
+ else if (sao_merge_left_flag) \
+ sao->elem = CTB(s->sao, rx-1, ry).elem; \
+ else if (sao_merge_up_flag) \
+ sao->elem = CTB(s->sao, rx, ry-1).elem; \
+ else \
+ sao->elem = 0; \
+} while (0)
+
+static void hls_sao_param(HEVCContext *s, int rx, int ry)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int sao_merge_left_flag = 0;
+ int sao_merge_up_flag = 0;
+ int shift = s->sps->bit_depth - FFMIN(s->sps->bit_depth, 10);
+ SAOParams *sao = &CTB(s->sao, rx, ry);
+ int c_idx, i;
+
+ if (s->sh.slice_sample_adaptive_offset_flag[0] ||
+ s->sh.slice_sample_adaptive_offset_flag[1]) {
+ if (rx > 0) {
+ if (lc->ctb_left_flag)
+ sao_merge_left_flag = ff_hevc_sao_merge_flag_decode(s);
+ }
+ if (ry > 0 && !sao_merge_left_flag) {
+ if (lc->ctb_up_flag)
+ sao_merge_up_flag = ff_hevc_sao_merge_flag_decode(s);
+ }
+ }
+
+ for (c_idx = 0; c_idx < 3; c_idx++) {
+ if (!s->sh.slice_sample_adaptive_offset_flag[c_idx]) {
+ sao->type_idx[c_idx] = SAO_NOT_APPLIED;
+ continue;
+ }
+
+ if (c_idx == 2) {
+ sao->type_idx[2] = sao->type_idx[1];
+ sao->eo_class[2] = sao->eo_class[1];
+ } else {
+ SET_SAO(type_idx[c_idx], ff_hevc_sao_type_idx_decode(s));
+ }
+
+ if (sao->type_idx[c_idx] == SAO_NOT_APPLIED)
+ continue;
+
+ for (i = 0; i < 4; i++)
+ SET_SAO(offset_abs[c_idx][i], ff_hevc_sao_offset_abs_decode(s));
+
+ if (sao->type_idx[c_idx] == SAO_BAND) {
+ for (i = 0; i < 4; i++) {
+ if (sao->offset_abs[c_idx][i]) {
+ SET_SAO(offset_sign[c_idx][i],
+ ff_hevc_sao_offset_sign_decode(s));
+ } else {
+ sao->offset_sign[c_idx][i] = 0;
+ }
+ }
+ SET_SAO(band_position[c_idx], ff_hevc_sao_band_position_decode(s));
+ } else if (c_idx != 2) {
+ SET_SAO(eo_class[c_idx], ff_hevc_sao_eo_class_decode(s));
+ }
+
+ // Inferred parameters
+ sao->offset_val[c_idx][0] = 0;
+ for (i = 0; i < 4; i++) {
+ sao->offset_val[c_idx][i + 1] = sao->offset_abs[c_idx][i] << shift;
+ if (sao->type_idx[c_idx] == SAO_EDGE) {
+ if (i > 1)
+ sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
+ } else if (sao->offset_sign[c_idx][i]) {
+ sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
+ }
+ }
+ }
+}
+
+#undef SET_SAO
+#undef CTB
+
+static void hls_residual_coding(HEVCContext *s, int x0, int y0,
+ int log2_trafo_size, enum ScanType scan_idx,
+ int c_idx)
+{
+#define GET_COORD(offset, n) \
+ do { \
+ x_c = (scan_x_cg[offset >> 4] << 2) + scan_x_off[n]; \
+ y_c = (scan_y_cg[offset >> 4] << 2) + scan_y_off[n]; \
+ } while (0)
+ HEVCLocalContext *lc = &s->HEVClc;
+ int transform_skip_flag = 0;
+
+ int last_significant_coeff_x, last_significant_coeff_y;
+ int last_scan_pos;
+ int n_end;
+ int num_coeff = 0;
+ int greater1_ctx = 1;
+
+ int num_last_subset;
+ int x_cg_last_sig, y_cg_last_sig;
+
+ const uint8_t *scan_x_cg, *scan_y_cg, *scan_x_off, *scan_y_off;
+
+ ptrdiff_t stride = s->frame->linesize[c_idx];
+ int hshift = s->sps->hshift[c_idx];
+ int vshift = s->sps->vshift[c_idx];
+ uint8_t *dst = &s->frame->data[c_idx][(y0 >> vshift) * stride +
+ ((x0 >> hshift) << s->sps->pixel_shift)];
+ DECLARE_ALIGNED(16, int16_t, coeffs[MAX_TB_SIZE * MAX_TB_SIZE]) = { 0 };
+ DECLARE_ALIGNED(8, uint8_t, significant_coeff_group_flag[8][8]) = { { 0 } };
+
+ int trafo_size = 1 << log2_trafo_size;
+ int i, qp, shift, add, scale, scale_m;
+ const uint8_t level_scale[] = { 40, 45, 51, 57, 64, 72 };
+ const uint8_t *scale_matrix;
+ uint8_t dc_scale;
+
+ // Derive QP for dequant
+ if (!lc->cu.cu_transquant_bypass_flag) {
+ static const int qp_c[] = {
+ 29, 30, 31, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37
+ };
+
+ static const uint8_t rem6[51 + 2 * 6 + 1] = {
+ 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
+ 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
+ 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
+ };
+
+ static const uint8_t div6[51 + 2 * 6 + 1] = {
+ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
+ 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
+ 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
+ };
+ int qp_y = lc->qp_y;
+
+ if (c_idx == 0) {
+ qp = qp_y + s->sps->qp_bd_offset;
+ } else {
+ int qp_i, offset;
+
+ if (c_idx == 1)
+ offset = s->pps->cb_qp_offset + s->sh.slice_cb_qp_offset;
+ else
+ offset = s->pps->cr_qp_offset + s->sh.slice_cr_qp_offset;
+
+ qp_i = av_clip_c(qp_y + offset, -s->sps->qp_bd_offset, 57);
+ if (qp_i < 30)
+ qp = qp_i;
+ else if (qp_i > 43)
+ qp = qp_i - 6;
+ else
+ qp = qp_c[qp_i - 30];
+
+ qp += s->sps->qp_bd_offset;
+ }
+
+ shift = s->sps->bit_depth + log2_trafo_size - 5;
+ add = 1 << (shift - 1);
+ scale = level_scale[rem6[qp]] << (div6[qp]);
+ scale_m = 16; // default when no custom scaling lists.
+ dc_scale = 16;
+
+ if (s->sps->scaling_list_enable_flag) {
+ const ScalingList *sl = s->pps->scaling_list_data_present_flag ?
+ &s->pps->scaling_list : &s->sps->scaling_list;
+ int matrix_id = lc->cu.pred_mode != MODE_INTRA;
+
+ if (log2_trafo_size != 5)
+ matrix_id = 3 * matrix_id + c_idx;
+
+ scale_matrix = sl->sl[log2_trafo_size - 2][matrix_id];
+ if (log2_trafo_size >= 4)
+ dc_scale = sl->sl_dc[log2_trafo_size - 4][matrix_id];
+ }
+ }
+
+ if (s->pps->transform_skip_enabled_flag &&
+ !lc->cu.cu_transquant_bypass_flag &&
+ log2_trafo_size == 2) {
+ transform_skip_flag = ff_hevc_transform_skip_flag_decode(s, c_idx);
+ }
+
+ last_significant_coeff_x =
+ ff_hevc_last_significant_coeff_x_prefix_decode(s, c_idx, log2_trafo_size);
+ last_significant_coeff_y =
+ ff_hevc_last_significant_coeff_y_prefix_decode(s, c_idx, log2_trafo_size);
+
+ if (last_significant_coeff_x > 3) {
+ int suffix = ff_hevc_last_significant_coeff_suffix_decode(s, last_significant_coeff_x);
+ last_significant_coeff_x = (1 << ((last_significant_coeff_x >> 1) - 1)) *
+ (2 + (last_significant_coeff_x & 1)) +
+ suffix;
+ }
+
+ if (last_significant_coeff_y > 3) {
+ int suffix = ff_hevc_last_significant_coeff_suffix_decode(s, last_significant_coeff_y);
+ last_significant_coeff_y = (1 << ((last_significant_coeff_y >> 1) - 1)) *
+ (2 + (last_significant_coeff_y & 1)) +
+ suffix;
+ }
+
+ if (scan_idx == SCAN_VERT)
+ FFSWAP(int, last_significant_coeff_x, last_significant_coeff_y);
+
+ x_cg_last_sig = last_significant_coeff_x >> 2;
+ y_cg_last_sig = last_significant_coeff_y >> 2;
+
+ switch (scan_idx) {
+ case SCAN_DIAG: {
+ int last_x_c = last_significant_coeff_x & 3;
+ int last_y_c = last_significant_coeff_y & 3;
+
+ scan_x_off = ff_hevc_diag_scan4x4_x;
+ scan_y_off = ff_hevc_diag_scan4x4_y;
+ num_coeff = diag_scan4x4_inv[last_y_c][last_x_c];
+ if (trafo_size == 4) {
+ scan_x_cg = scan_1x1;
+ scan_y_cg = scan_1x1;
+ } else if (trafo_size == 8) {
+ num_coeff += diag_scan2x2_inv[y_cg_last_sig][x_cg_last_sig] << 4;
+ scan_x_cg = diag_scan2x2_x;
+ scan_y_cg = diag_scan2x2_y;
+ } else if (trafo_size == 16) {
+ num_coeff += diag_scan4x4_inv[y_cg_last_sig][x_cg_last_sig] << 4;
+ scan_x_cg = ff_hevc_diag_scan4x4_x;
+ scan_y_cg = ff_hevc_diag_scan4x4_y;
+ } else { // trafo_size == 32
+ num_coeff += diag_scan8x8_inv[y_cg_last_sig][x_cg_last_sig] << 4;
+ scan_x_cg = ff_hevc_diag_scan8x8_x;
+ scan_y_cg = ff_hevc_diag_scan8x8_y;
+ }
+ break;
+ }
+ case SCAN_HORIZ:
+ scan_x_cg = horiz_scan2x2_x;
+ scan_y_cg = horiz_scan2x2_y;
+ scan_x_off = horiz_scan4x4_x;
+ scan_y_off = horiz_scan4x4_y;
+ num_coeff = horiz_scan8x8_inv[last_significant_coeff_y][last_significant_coeff_x];
+ break;
+ default: //SCAN_VERT
+ scan_x_cg = horiz_scan2x2_y;
+ scan_y_cg = horiz_scan2x2_x;
+ scan_x_off = horiz_scan4x4_y;
+ scan_y_off = horiz_scan4x4_x;
+ num_coeff = horiz_scan8x8_inv[last_significant_coeff_x][last_significant_coeff_y];
+ break;
+ }
+ num_coeff++;
+ num_last_subset = (num_coeff - 1) >> 4;
+
+ for (i = num_last_subset; i >= 0; i--) {
+ int n, m;
+ int x_cg, y_cg, x_c, y_c;
+ int implicit_non_zero_coeff = 0;
+ int64_t trans_coeff_level;
+ int prev_sig = 0;
+ int offset = i << 4;
+
+ uint8_t significant_coeff_flag_idx[16];
+ uint8_t nb_significant_coeff_flag = 0;
+
+ x_cg = scan_x_cg[i];
+ y_cg = scan_y_cg[i];
+
+ if (i < num_last_subset && i > 0) {
+ int ctx_cg = 0;
+ if (x_cg < (1 << (log2_trafo_size - 2)) - 1)
+ ctx_cg += significant_coeff_group_flag[x_cg + 1][y_cg];
+ if (y_cg < (1 << (log2_trafo_size - 2)) - 1)
+ ctx_cg += significant_coeff_group_flag[x_cg][y_cg + 1];
+
+ significant_coeff_group_flag[x_cg][y_cg] =
+ ff_hevc_significant_coeff_group_flag_decode(s, c_idx, ctx_cg);
+ implicit_non_zero_coeff = 1;
+ } else {
+ significant_coeff_group_flag[x_cg][y_cg] =
+ ((x_cg == x_cg_last_sig && y_cg == y_cg_last_sig) ||
+ (x_cg == 0 && y_cg == 0));
+ }
+
+ last_scan_pos = num_coeff - offset - 1;
+
+ if (i == num_last_subset) {
+ n_end = last_scan_pos - 1;
+ significant_coeff_flag_idx[0] = last_scan_pos;
+ nb_significant_coeff_flag = 1;
+ } else {
+ n_end = 15;
+ }
+
+ if (x_cg < ((1 << log2_trafo_size) - 1) >> 2)
+ prev_sig = significant_coeff_group_flag[x_cg + 1][y_cg];
+ if (y_cg < ((1 << log2_trafo_size) - 1) >> 2)
+ prev_sig += significant_coeff_group_flag[x_cg][y_cg + 1] << 1;
+
+ for (n = n_end; n >= 0; n--) {
+ GET_COORD(offset, n);
+
+ if (significant_coeff_group_flag[x_cg][y_cg] &&
+ (n > 0 || implicit_non_zero_coeff == 0)) {
+ if (ff_hevc_significant_coeff_flag_decode(s, c_idx, x_c, y_c,
+ log2_trafo_size,
+ scan_idx,
+ prev_sig) == 1) {
+ significant_coeff_flag_idx[nb_significant_coeff_flag] = n;
+ nb_significant_coeff_flag++;
+ implicit_non_zero_coeff = 0;
+ }
+ } else {
+ int last_cg = (x_c == (x_cg << 2) && y_c == (y_cg << 2));
+ if (last_cg && implicit_non_zero_coeff && significant_coeff_group_flag[x_cg][y_cg]) {
+ significant_coeff_flag_idx[nb_significant_coeff_flag] = n;
+ nb_significant_coeff_flag++;
+ }
+ }
+ }
+
+ n_end = nb_significant_coeff_flag;
+
+ if (n_end) {
+ int first_nz_pos_in_cg = 16;
+ int last_nz_pos_in_cg = -1;
+ int c_rice_param = 0;
+ int first_greater1_coeff_idx = -1;
+ uint8_t coeff_abs_level_greater1_flag[16] = { 0 };
+ uint16_t coeff_sign_flag;
+ int sum_abs = 0;
+ int sign_hidden = 0;
+
+ // initialize first elem of coeff_bas_level_greater1_flag
+ int ctx_set = (i > 0 && c_idx == 0) ? 2 : 0;
+
+ if (!(i == num_last_subset) && greater1_ctx == 0)
+ ctx_set++;
+ greater1_ctx = 1;
+ last_nz_pos_in_cg = significant_coeff_flag_idx[0];
+
+ for (m = 0; m < (n_end > 8 ? 8 : n_end); m++) {
+ int n_idx = significant_coeff_flag_idx[m];
+ int inc = (ctx_set << 2) + greater1_ctx;
+ coeff_abs_level_greater1_flag[n_idx] =
+ ff_hevc_coeff_abs_level_greater1_flag_decode(s, c_idx, inc);
+ if (coeff_abs_level_greater1_flag[n_idx]) {
+ greater1_ctx = 0;
+ } else if (greater1_ctx > 0 && greater1_ctx < 3) {
+ greater1_ctx++;
+ }
+
+ if (coeff_abs_level_greater1_flag[n_idx] &&
+ first_greater1_coeff_idx == -1)
+ first_greater1_coeff_idx = n_idx;
+ }
+ first_nz_pos_in_cg = significant_coeff_flag_idx[n_end - 1];
+ sign_hidden = last_nz_pos_in_cg - first_nz_pos_in_cg >= 4 &&
+ !lc->cu.cu_transquant_bypass_flag;
+
+ if (first_greater1_coeff_idx != -1) {
+ coeff_abs_level_greater1_flag[first_greater1_coeff_idx] += ff_hevc_coeff_abs_level_greater2_flag_decode(s, c_idx, ctx_set);
+ }
+ if (!s->pps->sign_data_hiding_flag || !sign_hidden) {
+ coeff_sign_flag = ff_hevc_coeff_sign_flag(s, nb_significant_coeff_flag) << (16 - nb_significant_coeff_flag);
+ } else {
+ coeff_sign_flag = ff_hevc_coeff_sign_flag(s, nb_significant_coeff_flag - 1) << (16 - (nb_significant_coeff_flag - 1));
+ }
+
+ for (m = 0; m < n_end; m++) {
+ n = significant_coeff_flag_idx[m];
+ GET_COORD(offset, n);
+ trans_coeff_level = 1 + coeff_abs_level_greater1_flag[n];
+ if (trans_coeff_level == ((m < 8) ?
+ ((n == first_greater1_coeff_idx) ? 3 : 2) : 1)) {
+ int last_coeff_abs_level_remaining = ff_hevc_coeff_abs_level_remaining(s, trans_coeff_level, c_rice_param);
+
+ trans_coeff_level += last_coeff_abs_level_remaining;
+ if ((trans_coeff_level) > (3 * (1 << c_rice_param)))
+ c_rice_param = FFMIN(c_rice_param + 1, 4);
+ }
+ if (s->pps->sign_data_hiding_flag && sign_hidden) {
+ sum_abs += trans_coeff_level;
+ if (n == first_nz_pos_in_cg && ((sum_abs & 1) == 1))
+ trans_coeff_level = -trans_coeff_level;
+ }
+ if (coeff_sign_flag >> 15)
+ trans_coeff_level = -trans_coeff_level;
+ coeff_sign_flag <<= 1;
+ if (!lc->cu.cu_transquant_bypass_flag) {
+ if (s->sps->scaling_list_enable_flag) {
+ if (y_c || x_c || log2_trafo_size < 4) {
+ int pos;
+ switch (log2_trafo_size) {
+ case 3: pos = (y_c << 3) + x_c; break;
+ case 4: pos = ((y_c >> 1) << 3) + (x_c >> 1); break;
+ case 5: pos = ((y_c >> 2) << 3) + (x_c >> 2); break;
+ default: pos = (y_c << 2) + x_c;
+ }
+ scale_m = scale_matrix[pos];
+ } else {
+ scale_m = dc_scale;
+ }
+ }
+ trans_coeff_level = (trans_coeff_level * (int64_t)scale * (int64_t)scale_m + add) >> shift;
+ if(trans_coeff_level < 0) {
+ if((~trans_coeff_level) & 0xFffffffffff8000)
+ trans_coeff_level = -32768;
+ } else {
+ if (trans_coeff_level & 0xffffffffffff8000)
+ trans_coeff_level = 32767;
+ }
+ }
+ coeffs[y_c * trafo_size + x_c] = trans_coeff_level;
+ }
+ }
+ }
+
+ if (lc->cu.cu_transquant_bypass_flag) {
+ s->hevcdsp.transquant_bypass[log2_trafo_size - 2](dst, coeffs, stride);
+ } else {
+ if (transform_skip_flag)
+ s->hevcdsp.transform_skip(dst, coeffs, stride);
+ else if (lc->cu.pred_mode == MODE_INTRA && c_idx == 0 &&
+ log2_trafo_size == 2)
+ s->hevcdsp.transform_4x4_luma_add(dst, coeffs, stride);
+ else
+ s->hevcdsp.transform_add[log2_trafo_size - 2](dst, coeffs, stride);
+ }
+}
+
+static void hls_transform_unit(HEVCContext *s, int x0, int y0,
+ int xBase, int yBase, int cb_xBase, int cb_yBase,
+ int log2_cb_size, int log2_trafo_size,
+ int trafo_depth, int blk_idx)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+
+ if (lc->cu.pred_mode == MODE_INTRA) {
+ int trafo_size = 1 << log2_trafo_size;
+ ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
+
+ s->hpc.intra_pred(s, x0, y0, log2_trafo_size, 0);
+ if (log2_trafo_size > 2) {
+ trafo_size = trafo_size << (s->sps->hshift[1] - 1);
+ ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
+ s->hpc.intra_pred(s, x0, y0, log2_trafo_size - 1, 1);
+ s->hpc.intra_pred(s, x0, y0, log2_trafo_size - 1, 2);
+ } else if (blk_idx == 3) {
+ trafo_size = trafo_size << s->sps->hshift[1];
+ ff_hevc_set_neighbour_available(s, xBase, yBase,
+ trafo_size, trafo_size);
+ s->hpc.intra_pred(s, xBase, yBase, log2_trafo_size, 1);
+ s->hpc.intra_pred(s, xBase, yBase, log2_trafo_size, 2);
+ }
+ }
+
+ if (lc->tt.cbf_luma ||
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
+ int scan_idx = SCAN_DIAG;
+ int scan_idx_c = SCAN_DIAG;
+
+ if (s->pps->cu_qp_delta_enabled_flag && !lc->tu.is_cu_qp_delta_coded) {
+ lc->tu.cu_qp_delta = ff_hevc_cu_qp_delta_abs(s);
+ if (lc->tu.cu_qp_delta != 0)
+ if (ff_hevc_cu_qp_delta_sign_flag(s) == 1)
+ lc->tu.cu_qp_delta = -lc->tu.cu_qp_delta;
+ lc->tu.is_cu_qp_delta_coded = 1;
+ ff_hevc_set_qPy(s, x0, y0, cb_xBase, cb_yBase, log2_cb_size);
+ }
+
+ if (lc->cu.pred_mode == MODE_INTRA && log2_trafo_size < 4) {
+ if (lc->tu.cur_intra_pred_mode >= 6 &&
+ lc->tu.cur_intra_pred_mode <= 14) {
+ scan_idx = SCAN_VERT;
+ } else if (lc->tu.cur_intra_pred_mode >= 22 &&
+ lc->tu.cur_intra_pred_mode <= 30) {
+ scan_idx = SCAN_HORIZ;
+ }
+
+ if (lc->pu.intra_pred_mode_c >= 6 &&
+ lc->pu.intra_pred_mode_c <= 14) {
+ scan_idx_c = SCAN_VERT;
+ } else if (lc->pu.intra_pred_mode_c >= 22 &&
+ lc->pu.intra_pred_mode_c <= 30) {
+ scan_idx_c = SCAN_HORIZ;
+ }
+ }
+
+ if (lc->tt.cbf_luma)
+ hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
+ if (log2_trafo_size > 2) {
+ if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0))
+ hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 1);
+ if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0))
+ hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 2);
+ } else if (blk_idx == 3) {
+ if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], xBase, yBase))
+ hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 1);
+ if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], xBase, yBase))
+ hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 2);
+ }
+ }
+}
+
+static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_size)
+{
+ int cb_size = 1 << log2_cb_size;
+ int log2_min_pu_size = s->sps->log2_min_pu_size;
+
+ int min_pu_width = s->sps->min_pu_width;
+ int x_end = FFMIN(x0 + cb_size, s->sps->width);
+ int y_end = FFMIN(y0 + cb_size, s->sps->height);
+ int i, j;
+
+ for (j = (y0 >> log2_min_pu_size); j < (y_end >> log2_min_pu_size); j++)
+ for (i = (x0 >> log2_min_pu_size); i < (x_end >> log2_min_pu_size); i++)
+ s->is_pcm[i + j * min_pu_width] = 2;
+}
+
+static void hls_transform_tree(HEVCContext *s, int x0, int y0,
+ int xBase, int yBase, int cb_xBase, int cb_yBase,
+ int log2_cb_size, int log2_trafo_size,
+ int trafo_depth, int blk_idx)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ uint8_t split_transform_flag;
+
+ if (trafo_depth > 0 && log2_trafo_size == 2) {
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase);
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase);
+ } else {
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) = 0;
+ }
+
+ if (lc->cu.intra_split_flag) {
+ if (trafo_depth == 1)
+ lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
+ } else {
+ lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[0];
+ }
+
+ lc->tt.cbf_luma = 1;
+
+ lc->tt.inter_split_flag = s->sps->max_transform_hierarchy_depth_inter == 0 &&
+ lc->cu.pred_mode == MODE_INTER &&
+ lc->cu.part_mode != PART_2Nx2N &&
+ trafo_depth == 0;
+
+ if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
+ log2_trafo_size > s->sps->log2_min_tb_size &&
+ trafo_depth < lc->cu.max_trafo_depth &&
+ !(lc->cu.intra_split_flag && trafo_depth == 0)) {
+ split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
+ } else {
+ split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
+ (lc->cu.intra_split_flag && trafo_depth == 0) ||
+ lc->tt.inter_split_flag;
+ }
+
+ if (log2_trafo_size > 2) {
+ if (trafo_depth == 0 ||
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase)) {
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
+ ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
+ }
+
+ if (trafo_depth == 0 ||
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase)) {
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
+ ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
+ }
+ }
+
+ if (split_transform_flag) {
+ int x1 = x0 + ((1 << log2_trafo_size) >> 1);
+ int y1 = y0 + ((1 << log2_trafo_size) >> 1);
+
+ hls_transform_tree(s, x0, y0, x0, y0, cb_xBase, cb_yBase, log2_cb_size,
+ log2_trafo_size - 1, trafo_depth + 1, 0);
+ hls_transform_tree(s, x1, y0, x0, y0, cb_xBase, cb_yBase, log2_cb_size,
+ log2_trafo_size - 1, trafo_depth + 1, 1);
+ hls_transform_tree(s, x0, y1, x0, y0, cb_xBase, cb_yBase, log2_cb_size,
+ log2_trafo_size - 1, trafo_depth + 1, 2);
+ hls_transform_tree(s, x1, y1, x0, y0, cb_xBase, cb_yBase, log2_cb_size,
+ log2_trafo_size - 1, trafo_depth + 1, 3);
+ } else {
+ int min_tu_size = 1 << s->sps->log2_min_tb_size;
+ int log2_min_tu_size = s->sps->log2_min_tb_size;
+ int min_tu_width = s->sps->min_tb_width;
+
+ if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
+ SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
+ SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
+ lc->tt.cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
+ }
+
+ hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
+ log2_cb_size, log2_trafo_size, trafo_depth, blk_idx);
+
+ // TODO: store cbf_luma somewhere else
+ if (lc->tt.cbf_luma) {
+ int i, j;
+ for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
+ for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
+ int x_tu = (x0 + j) >> log2_min_tu_size;
+ int y_tu = (y0 + i) >> log2_min_tu_size;
+ s->cbf_luma[y_tu * min_tu_width + x_tu] = 1;
+ }
+ }
+ if (!s->sh.disable_deblocking_filter_flag) {
+ ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size,
+ lc->slice_or_tiles_up_boundary,
+ lc->slice_or_tiles_left_boundary);
+ if (s->pps->transquant_bypass_enable_flag &&
+ lc->cu.cu_transquant_bypass_flag)
+ set_deblocking_bypass(s, x0, y0, log2_trafo_size);
+ }
+ }
+}
+
+static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
+{
+ //TODO: non-4:2:0 support
+ HEVCLocalContext *lc = &s->HEVClc;
+ GetBitContext gb;
+ int cb_size = 1 << log2_cb_size;
+ int stride0 = s->frame->linesize[0];
+ uint8_t *dst0 = &s->frame->data[0][y0 * stride0 + (x0 << s->sps->pixel_shift)];
+ int stride1 = s->frame->linesize[1];
+ uint8_t *dst1 = &s->frame->data[1][(y0 >> s->sps->vshift[1]) * stride1 + ((x0 >> s->sps->hshift[1]) << s->sps->pixel_shift)];
+ int stride2 = s->frame->linesize[2];
+ uint8_t *dst2 = &s->frame->data[2][(y0 >> s->sps->vshift[2]) * stride2 + ((x0 >> s->sps->hshift[2]) << s->sps->pixel_shift)];
+
+ int length = cb_size * cb_size * s->sps->pcm.bit_depth + ((cb_size * cb_size) >> 1) * s->sps->pcm.bit_depth;
+ const uint8_t *pcm = skip_bytes(&s->HEVClc.cc, (length + 7) >> 3);
+ int ret;
+
+ ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,
+ lc->slice_or_tiles_up_boundary,
+ lc->slice_or_tiles_left_boundary);
+
+ ret = init_get_bits(&gb, pcm, length);
+ if (ret < 0)
+ return ret;
+
+ s->hevcdsp.put_pcm(dst0, stride0, cb_size, &gb, s->sps->pcm.bit_depth);
+ s->hevcdsp.put_pcm(dst1, stride1, cb_size / 2, &gb, s->sps->pcm.bit_depth);
+ s->hevcdsp.put_pcm(dst2, stride2, cb_size / 2, &gb, s->sps->pcm.bit_depth);
+ return 0;
+}
+
+static void hls_mvd_coding(HEVCContext *s, int x0, int y0, int log2_cb_size)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int x = ff_hevc_abs_mvd_greater0_flag_decode(s);
+ int y = ff_hevc_abs_mvd_greater0_flag_decode(s);
+
+ if (x)
+ x += ff_hevc_abs_mvd_greater1_flag_decode(s);
+ if (y)
+ y += ff_hevc_abs_mvd_greater1_flag_decode(s);
+
+ switch (x) {
+ case 2: lc->pu.mvd.x = ff_hevc_mvd_decode(s); break;
+ case 1: lc->pu.mvd.x = ff_hevc_mvd_sign_flag_decode(s); break;
+ case 0: lc->pu.mvd.x = 0; break;
+ }
+
+ switch (y) {
+ case 2: lc->pu.mvd.y = ff_hevc_mvd_decode(s); break;
+ case 1: lc->pu.mvd.y = ff_hevc_mvd_sign_flag_decode(s); break;
+ case 0: lc->pu.mvd.y = 0; break;
+ }
+}
+
+/**
+ * 8.5.3.2.2.1 Luma sample interpolation process
+ *
+ * @param s HEVC decoding context
+ * @param dst target buffer for block data at block position
+ * @param dststride stride of the dst buffer
+ * @param ref reference picture buffer at origin (0, 0)
+ * @param mv motion vector (relative to block position) to get pixel data from
+ * @param x_off horizontal position of block from origin (0, 0)
+ * @param y_off vertical position of block from origin (0, 0)
+ * @param block_w width of block
+ * @param block_h height of block
+ */
+static void luma_mc(HEVCContext *s, int16_t *dst, ptrdiff_t dststride,
+ AVFrame *ref, const Mv *mv, int x_off, int y_off,
+ int block_w, int block_h)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ uint8_t *src = ref->data[0];
+ ptrdiff_t srcstride = ref->linesize[0];
+ int pic_width = s->sps->width;
+ int pic_height = s->sps->height;
+
+ int mx = mv->x & 3;
+ int my = mv->y & 3;
+ int extra_left = ff_hevc_qpel_extra_before[mx];
+ int extra_top = ff_hevc_qpel_extra_before[my];
+
+ x_off += mv->x >> 2;
+ y_off += mv->y >> 2;
+ src += y_off * srcstride + (x_off << s->sps->pixel_shift);
+
+ if (x_off < extra_left || y_off < extra_top ||
+ x_off >= pic_width - block_w - ff_hevc_qpel_extra_after[mx] ||
+ y_off >= pic_height - block_h - ff_hevc_qpel_extra_after[my]) {
+ int offset = extra_top * srcstride + (extra_left << s->sps->pixel_shift);
+
+ s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src - offset, srcstride,
+ block_w + ff_hevc_qpel_extra[mx],
+ block_h + ff_hevc_qpel_extra[my],
+ x_off - extra_left, y_off - extra_top,
+ pic_width, pic_height);
+ src = lc->edge_emu_buffer + offset;
+ }
+ s->hevcdsp.put_hevc_qpel[my][mx](dst, dststride, src, srcstride, block_w,
+ block_h, lc->mc_buffer);
+}
+
+/**
+ * 8.5.3.2.2.2 Chroma sample interpolation process
+ *
+ * @param s HEVC decoding context
+ * @param dst1 target buffer for block data at block position (U plane)
+ * @param dst2 target buffer for block data at block position (V plane)
+ * @param dststride stride of the dst1 and dst2 buffers
+ * @param ref reference picture buffer at origin (0, 0)
+ * @param mv motion vector (relative to block position) to get pixel data from
+ * @param x_off horizontal position of block from origin (0, 0)
+ * @param y_off vertical position of block from origin (0, 0)
+ * @param block_w width of block
+ * @param block_h height of block
+ */
+static void chroma_mc(HEVCContext *s, int16_t *dst1, int16_t *dst2,
+ ptrdiff_t dststride, AVFrame *ref, const Mv *mv,
+ int x_off, int y_off, int block_w, int block_h)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ uint8_t *src1 = ref->data[1];
+ uint8_t *src2 = ref->data[2];
+ ptrdiff_t src1stride = ref->linesize[1];
+ ptrdiff_t src2stride = ref->linesize[2];
+ int pic_width = s->sps->width >> 1;
+ int pic_height = s->sps->height >> 1;
+
+ int mx = mv->x & 7;
+ int my = mv->y & 7;
+
+ x_off += mv->x >> 3;
+ y_off += mv->y >> 3;
+ src1 += y_off * src1stride + (x_off << s->sps->pixel_shift);
+ src2 += y_off * src2stride + (x_off << s->sps->pixel_shift);
+
+ if (x_off < EPEL_EXTRA_BEFORE || y_off < EPEL_EXTRA_AFTER ||
+ x_off >= pic_width - block_w - EPEL_EXTRA_AFTER ||
+ y_off >= pic_height - block_h - EPEL_EXTRA_AFTER) {
+ int offset1 = EPEL_EXTRA_BEFORE * (src1stride + (1 << s->sps->pixel_shift));
+ int offset2 = EPEL_EXTRA_BEFORE * (src2stride + (1 << s->sps->pixel_shift));
+
+ s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src1 - offset1, src1stride,
+ block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
+ x_off - EPEL_EXTRA_BEFORE,
+ y_off - EPEL_EXTRA_BEFORE,
+ pic_width, pic_height);
+
+ src1 = lc->edge_emu_buffer + offset1;
+ s->hevcdsp.put_hevc_epel[!!my][!!mx](dst1, dststride, src1, src1stride,
+ block_w, block_h, mx, my, lc->mc_buffer);
+
+ s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src2 - offset2, src2stride,
+ block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
+ x_off - EPEL_EXTRA_BEFORE,
+ y_off - EPEL_EXTRA_BEFORE,
+ pic_width, pic_height);
+ src2 = lc->edge_emu_buffer + offset2;
+ s->hevcdsp.put_hevc_epel[!!my][!!mx](dst2, dststride, src2, src2stride,
+ block_w, block_h, mx, my,
+ lc->mc_buffer);
+ } else {
+ s->hevcdsp.put_hevc_epel[!!my][!!mx](dst1, dststride, src1, src1stride,
+ block_w, block_h, mx, my,
+ lc->mc_buffer);
+ s->hevcdsp.put_hevc_epel[!!my][!!mx](dst2, dststride, src2, src2stride,
+ block_w, block_h, mx, my,
+ lc->mc_buffer);
+ }
+}
+
+static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
+ const Mv *mv, int y0, int height)
+{
+ int y = (mv->y >> 2) + y0 + height + 9;
+ ff_thread_await_progress(&ref->tf, y, 0);
+}
+
+static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH,
+ int log2_cb_size, int partIdx)
+{
+#define POS(c_idx, x, y) \
+ &s->frame->data[c_idx][((y) >> s->sps->vshift[c_idx]) * s->frame->linesize[c_idx] + \
+ (((x) >> s->sps->hshift[c_idx]) << s->sps->pixel_shift)]
+ HEVCLocalContext *lc = &s->HEVClc;
+ int merge_idx = 0;
+ struct MvField current_mv = {{{ 0 }}};
+
+ int min_pu_width = s->sps->min_pu_width;
+
+ MvField *tab_mvf = s->ref->tab_mvf;
+ RefPicList *refPicList = s->ref->refPicList;
+ HEVCFrame *ref0, *ref1;
+
+ int tmpstride = MAX_PB_SIZE;
+
+ uint8_t *dst0 = POS(0, x0, y0);
+ uint8_t *dst1 = POS(1, x0, y0);
+ uint8_t *dst2 = POS(2, x0, y0);
+ int log2_min_cb_size = s->sps->log2_min_cb_size;
+ int min_cb_width = s->sps->min_cb_width;
+ int x_cb = x0 >> log2_min_cb_size;
+ int y_cb = y0 >> log2_min_cb_size;
+ int ref_idx[2];
+ int mvp_flag[2];
+ int x_pu, y_pu;
+ int i, j;
+
+ if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
+ if (s->sh.max_num_merge_cand > 1)
+ merge_idx = ff_hevc_merge_idx_decode(s);
+ else
+ merge_idx = 0;
+
+ ff_hevc_luma_mv_merge_mode(s, x0, y0,
+ 1 << log2_cb_size,
+ 1 << log2_cb_size,
+ log2_cb_size, partIdx,
+ merge_idx, ¤t_mv);
+ x_pu = x0 >> s->sps->log2_min_pu_size;
+ y_pu = y0 >> s->sps->log2_min_pu_size;
+
+ for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
+ for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
+ } else { /* MODE_INTER */
+ lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
+ if (lc->pu.merge_flag) {
+ if (s->sh.max_num_merge_cand > 1)
+ merge_idx = ff_hevc_merge_idx_decode(s);
+ else
+ merge_idx = 0;
+
+ ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+ partIdx, merge_idx, ¤t_mv);
+ x_pu = x0 >> s->sps->log2_min_pu_size;
+ y_pu = y0 >> s->sps->log2_min_pu_size;
+
+ for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
+ for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
+ } else {
+ enum InterPredIdc inter_pred_idc = PRED_L0;
+ ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
+ if (s->sh.slice_type == B_SLICE)
+ inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
+
+ if (inter_pred_idc != PRED_L1) {
+ if (s->sh.nb_refs[L0]) {
+ ref_idx[0] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
+ current_mv.ref_idx[0] = ref_idx[0];
+ }
+ current_mv.pred_flag[0] = 1;
+ hls_mvd_coding(s, x0, y0, 0);
+ mvp_flag[0] = ff_hevc_mvp_lx_flag_decode(s);
+ ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+ partIdx, merge_idx, ¤t_mv,
+ mvp_flag[0], 0);
+ current_mv.mv[0].x += lc->pu.mvd.x;
+ current_mv.mv[0].y += lc->pu.mvd.y;
+ }
+
+ if (inter_pred_idc != PRED_L0) {
+ if (s->sh.nb_refs[L1]) {
+ ref_idx[1] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
+ current_mv.ref_idx[1] = ref_idx[1];
+ }
+
+ if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
+ lc->pu.mvd.x = 0;
+ lc->pu.mvd.y = 0;
+ } else {
+ hls_mvd_coding(s, x0, y0, 1);
+ }
+
+ current_mv.pred_flag[1] = 1;
+ mvp_flag[1] = ff_hevc_mvp_lx_flag_decode(s);
+ ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+ partIdx, merge_idx, ¤t_mv,
+ mvp_flag[1], 1);
+ current_mv.mv[1].x += lc->pu.mvd.x;
+ current_mv.mv[1].y += lc->pu.mvd.y;
+ }
+
+ x_pu = x0 >> s->sps->log2_min_pu_size;
+ y_pu = y0 >> s->sps->log2_min_pu_size;
+
+ for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
+ for(j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
+ }
+ }
+
+ if (current_mv.pred_flag[0]) {
+ ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
+ if (!ref0)
+ return;
+ hevc_await_progress(s, ref0, ¤t_mv.mv[0], y0, nPbH);
+ }
+ if (current_mv.pred_flag[1]) {
+ ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
+ if (!ref1)
+ return;
+ hevc_await_progress(s, ref1, ¤t_mv.mv[1], y0, nPbH);
+ }
+
+ if (current_mv.pred_flag[0] && !current_mv.pred_flag[1]) {
+ DECLARE_ALIGNED(16, int16_t, tmp[MAX_PB_SIZE * MAX_PB_SIZE]);
+ DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
+
+ luma_mc(s, tmp, tmpstride, ref0->frame,
+ ¤t_mv.mv[0], x0, y0, nPbW, nPbH);
+
+ if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
+ (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
+ s->hevcdsp.weighted_pred(s->sh.luma_log2_weight_denom,
+ s->sh.luma_weight_l0[current_mv.ref_idx[0]],
+ s->sh.luma_offset_l0[current_mv.ref_idx[0]],
+ dst0, s->frame->linesize[0], tmp,
+ tmpstride, nPbW, nPbH);
+ } else {
+ s->hevcdsp.put_unweighted_pred(dst0, s->frame->linesize[0], tmp, tmpstride, nPbW, nPbH);
+ }
+ chroma_mc(s, tmp, tmp2, tmpstride, ref0->frame,
+ ¤t_mv.mv[0], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
+
+ if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
+ (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
+ s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
+ s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0],
+ s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0],
+ dst1, s->frame->linesize[1], tmp, tmpstride,
+ nPbW / 2, nPbH / 2);
+ s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
+ s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1],
+ s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1],
+ dst2, s->frame->linesize[2], tmp2, tmpstride,
+ nPbW / 2, nPbH / 2);
+ } else {
+ s->hevcdsp.put_unweighted_pred(dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
+ s->hevcdsp.put_unweighted_pred(dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
+ }
+ } else if (!current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
+ DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
+ DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
+
+ if (!ref1)
+ return;
+
+ luma_mc(s, tmp, tmpstride, ref1->frame,
+ ¤t_mv.mv[1], x0, y0, nPbW, nPbH);
+
+ if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
+ (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
+ s->hevcdsp.weighted_pred(s->sh.luma_log2_weight_denom,
+ s->sh.luma_weight_l1[current_mv.ref_idx[1]],
+ s->sh.luma_offset_l1[current_mv.ref_idx[1]],
+ dst0, s->frame->linesize[0], tmp, tmpstride,
+ nPbW, nPbH);
+ } else {
+ s->hevcdsp.put_unweighted_pred(dst0, s->frame->linesize[0], tmp, tmpstride, nPbW, nPbH);
+ }
+
+ chroma_mc(s, tmp, tmp2, tmpstride, ref1->frame,
+ ¤t_mv.mv[1], x0/2, y0/2, nPbW/2, nPbH/2);
+
+ if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
+ (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
+ s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
+ s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0],
+ s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0],
+ dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
+ s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
+ s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1],
+ s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1],
+ dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
+ } else {
+ s->hevcdsp.put_unweighted_pred(dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
+ s->hevcdsp.put_unweighted_pred(dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
+ }
+ } else if (current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
+ DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
+ DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
+ DECLARE_ALIGNED(16, int16_t, tmp3[MAX_PB_SIZE * MAX_PB_SIZE]);
+ DECLARE_ALIGNED(16, int16_t, tmp4[MAX_PB_SIZE * MAX_PB_SIZE]);
+ HEVCFrame *ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
+ HEVCFrame *ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
+
+ if (!ref0 || !ref1)
+ return;
+
+ luma_mc(s, tmp, tmpstride, ref0->frame,
+ ¤t_mv.mv[0], x0, y0, nPbW, nPbH);
+ luma_mc(s, tmp2, tmpstride, ref1->frame,
+ ¤t_mv.mv[1], x0, y0, nPbW, nPbH);
+
+ if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
+ (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
+ s->hevcdsp.weighted_pred_avg(s->sh.luma_log2_weight_denom,
+ s->sh.luma_weight_l0[current_mv.ref_idx[0]],
+ s->sh.luma_weight_l1[current_mv.ref_idx[1]],
+ s->sh.luma_offset_l0[current_mv.ref_idx[0]],
+ s->sh.luma_offset_l1[current_mv.ref_idx[1]],
+ dst0, s->frame->linesize[0],
+ tmp, tmp2, tmpstride, nPbW, nPbH);
+ } else {
+ s->hevcdsp.put_weighted_pred_avg(dst0, s->frame->linesize[0],
+ tmp, tmp2, tmpstride, nPbW, nPbH);
+ }
+
+ chroma_mc(s, tmp, tmp2, tmpstride, ref0->frame,
+ ¤t_mv.mv[0], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
+ chroma_mc(s, tmp3, tmp4, tmpstride, ref1->frame,
+ ¤t_mv.mv[1], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
+
+ if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
+ (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
+ s->hevcdsp.weighted_pred_avg(s->sh.chroma_log2_weight_denom,
+ s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0],
+ s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0],
+ s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0],
+ s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0],
+ dst1, s->frame->linesize[1], tmp, tmp3,
+ tmpstride, nPbW / 2, nPbH / 2);
+ s->hevcdsp.weighted_pred_avg(s->sh.chroma_log2_weight_denom,
+ s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1],
+ s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1],
+ s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1],
+ s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1],
+ dst2, s->frame->linesize[2], tmp2, tmp4,
+ tmpstride, nPbW / 2, nPbH / 2);
+ } else {
+ s->hevcdsp.put_weighted_pred_avg(dst1, s->frame->linesize[1], tmp, tmp3, tmpstride, nPbW/2, nPbH/2);
+ s->hevcdsp.put_weighted_pred_avg(dst2, s->frame->linesize[2], tmp2, tmp4, tmpstride, nPbW/2, nPbH/2);
+ }
+ }
+}
+
+/**
+ * 8.4.1
+ */
+static int luma_intra_pred_mode(HEVCContext *s, int x0, int y0, int pu_size,
+ int prev_intra_luma_pred_flag)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int x_pu = x0 >> s->sps->log2_min_pu_size;
+ int y_pu = y0 >> s->sps->log2_min_pu_size;
+ int min_pu_width = s->sps->min_pu_width;
+ int size_in_pus = pu_size >> s->sps->log2_min_pu_size;
+ int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
+ int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
+
+ int cand_up = (lc->ctb_up_flag || y0b) ?
+ s->tab_ipm[(y_pu - 1) * min_pu_width + x_pu] : INTRA_DC;
+ int cand_left = (lc->ctb_left_flag || x0b) ?
+ s->tab_ipm[y_pu * min_pu_width + x_pu - 1] : INTRA_DC;
+
+ int y_ctb = (y0 >> (s->sps->log2_ctb_size)) << (s->sps->log2_ctb_size);
+
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int intra_pred_mode;
+ int candidate[3];
+ int i, j;
+
+ // intra_pred_mode prediction does not cross vertical CTB boundaries
+ if ((y0 - 1) < y_ctb)
+ cand_up = INTRA_DC;
+
+ if (cand_left == cand_up) {
+ if (cand_left < 2) {
+ candidate[0] = INTRA_PLANAR;
+ candidate[1] = INTRA_DC;
+ candidate[2] = INTRA_ANGULAR_26;
+ } else {
+ candidate[0] = cand_left;
+ candidate[1] = 2 + ((cand_left - 2 - 1 + 32) & 31);
+ candidate[2] = 2 + ((cand_left - 2 + 1) & 31);
+ }
+ } else {
+ candidate[0] = cand_left;
+ candidate[1] = cand_up;
+ if (candidate[0] != INTRA_PLANAR && candidate[1] != INTRA_PLANAR) {
+ candidate[2] = INTRA_PLANAR;
+ } else if (candidate[0] != INTRA_DC && candidate[1] != INTRA_DC) {
+ candidate[2] = INTRA_DC;
+ } else {
+ candidate[2] = INTRA_ANGULAR_26;
+ }
+ }
+
+ if (prev_intra_luma_pred_flag) {
+ intra_pred_mode = candidate[lc->pu.mpm_idx];
+ } else {
+ if (candidate[0] > candidate[1])
+ FFSWAP(uint8_t, candidate[0], candidate[1]);
+ if (candidate[0] > candidate[2])
+ FFSWAP(uint8_t, candidate[0], candidate[2]);
+ if (candidate[1] > candidate[2])
+ FFSWAP(uint8_t, candidate[1], candidate[2]);
+
+ intra_pred_mode = lc->pu.rem_intra_luma_pred_mode;
+ for (i = 0; i < 3; i++)
+ if (intra_pred_mode >= candidate[i])
+ intra_pred_mode++;
+ }
+
+ /* write the intra prediction units into the mv array */
+ if (!size_in_pus)
+ size_in_pus = 1;
+ for (i = 0; i < size_in_pus; i++) {
+ memset(&s->tab_ipm[(y_pu + i) * min_pu_width + x_pu],
+ intra_pred_mode, size_in_pus);
+
+ for (j = 0; j < size_in_pus; j++) {
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].is_intra = 1;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag[0] = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag[1] = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].ref_idx[0] = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].ref_idx[1] = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[0].x = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[0].y = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[1].x = 0;
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[1].y = 0;
+ }
+ }
+
+ return intra_pred_mode;
+}
+
+static av_always_inline void set_ct_depth(HEVCContext *s, int x0, int y0,
+ int log2_cb_size, int ct_depth)
+{
+ int length = (1 << log2_cb_size) >> s->sps->log2_min_cb_size;
+ int x_cb = x0 >> s->sps->log2_min_cb_size;
+ int y_cb = y0 >> s->sps->log2_min_cb_size;
+ int y;
+
+ for (y = 0; y < length; y++)
+ memset(&s->tab_ct_depth[(y_cb + y) * s->sps->min_cb_width + x_cb],
+ ct_depth, length);
+}
+
+static void intra_prediction_unit(HEVCContext *s, int x0, int y0,
+ int log2_cb_size)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ static const uint8_t intra_chroma_table[4] = { 0, 26, 10, 1 };
+ uint8_t prev_intra_luma_pred_flag[4];
+ int split = lc->cu.part_mode == PART_NxN;
+ int pb_size = (1 << log2_cb_size) >> split;
+ int side = split + 1;
+ int chroma_mode;
+ int i, j;
+
+ for (i = 0; i < side; i++)
+ for (j = 0; j < side; j++)
+ prev_intra_luma_pred_flag[2 * i + j] = ff_hevc_prev_intra_luma_pred_flag_decode(s);
+
+ for (i = 0; i < side; i++) {
+ for (j = 0; j < side; j++) {
+ if (prev_intra_luma_pred_flag[2 * i + j])
+ lc->pu.mpm_idx = ff_hevc_mpm_idx_decode(s);
+ else
+ lc->pu.rem_intra_luma_pred_mode = ff_hevc_rem_intra_luma_pred_mode_decode(s);
+
+ lc->pu.intra_pred_mode[2 * i + j] =
+ luma_intra_pred_mode(s, x0 + pb_size * j, y0 + pb_size * i, pb_size,
+ prev_intra_luma_pred_flag[2 * i + j]);
+ }
+ }
+
+ chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
+ if (chroma_mode != 4) {
+ if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
+ lc->pu.intra_pred_mode_c = 34;
+ else
+ lc->pu.intra_pred_mode_c = intra_chroma_table[chroma_mode];
+ } else {
+ lc->pu.intra_pred_mode_c = lc->pu.intra_pred_mode[0];
+ }
+}
+
+static void intra_prediction_unit_default_value(HEVCContext *s,
+ int x0, int y0,
+ int log2_cb_size)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int pb_size = 1 << log2_cb_size;
+ int size_in_pus = pb_size >> s->sps->log2_min_pu_size;
+ int min_pu_width = s->sps->min_pu_width;
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int x_pu = x0 >> s->sps->log2_min_pu_size;
+ int y_pu = y0 >> s->sps->log2_min_pu_size;
+ int j, k;
+
+ if (size_in_pus == 0)
+ size_in_pus = 1;
+ for (j = 0; j < size_in_pus; j++) {
+ memset(&s->tab_ipm[(y_pu + j) * min_pu_width + x_pu], INTRA_DC, size_in_pus);
+ for (k = 0; k < size_in_pus; k++)
+ tab_mvf[(y_pu + j) * min_pu_width + x_pu + k].is_intra = lc->cu.pred_mode == MODE_INTRA;
+ }
+}
+
+static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
+{
+ int cb_size = 1 << log2_cb_size;
+ HEVCLocalContext *lc = &s->HEVClc;
+ int log2_min_cb_size = s->sps->log2_min_cb_size;
+ int length = cb_size >> log2_min_cb_size;
+ int min_cb_width = s->sps->min_cb_width;
+ int x_cb = x0 >> log2_min_cb_size;
+ int y_cb = y0 >> log2_min_cb_size;
+ int x, y;
+
+ lc->cu.x = x0;
+ lc->cu.y = y0;
+ lc->cu.rqt_root_cbf = 1;
+ lc->cu.pred_mode = MODE_INTRA;
+ lc->cu.part_mode = PART_2Nx2N;
+ lc->cu.intra_split_flag = 0;
+ lc->cu.pcm_flag = 0;
+
+ SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
+ for (x = 0; x < 4; x++)
+ lc->pu.intra_pred_mode[x] = 1;
+ if (s->pps->transquant_bypass_enable_flag) {
+ lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);
+ if (lc->cu.cu_transquant_bypass_flag)
+ set_deblocking_bypass(s, x0, y0, log2_cb_size);
+ } else
+ lc->cu.cu_transquant_bypass_flag = 0;
+
+ if (s->sh.slice_type != I_SLICE) {
+ uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
+
+ lc->cu.pred_mode = MODE_SKIP;
+ x = y_cb * min_cb_width + x_cb;
+ for (y = 0; y < length; y++) {
+ memset(&s->skip_flag[x], skip_flag, length);
+ x += min_cb_width;
+ }
+ lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;
+ }
+
+ if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
+ hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
+ intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
+
+ if (!s->sh.disable_deblocking_filter_flag)
+ ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,
+ lc->slice_or_tiles_up_boundary,
+ lc->slice_or_tiles_left_boundary);
+ } else {
+ if (s->sh.slice_type != I_SLICE)
+ lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
+ if (lc->cu.pred_mode != MODE_INTRA ||
+ log2_cb_size == s->sps->log2_min_cb_size) {
+ lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);
+ lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&
+ lc->cu.pred_mode == MODE_INTRA;
+ }
+
+ if (lc->cu.pred_mode == MODE_INTRA) {
+ if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
+ log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
+ log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
+ lc->cu.pcm_flag = ff_hevc_pcm_flag_decode(s);
+ }
+ if (lc->cu.pcm_flag) {
+ int ret;
+ intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
+ ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
+ if (s->sps->pcm.loop_filter_disable_flag)
+ set_deblocking_bypass(s, x0, y0, log2_cb_size);
+
+ if (ret < 0)
+ return ret;
+ } else {
+ intra_prediction_unit(s, x0, y0, log2_cb_size);
+ }
+ } else {
+ intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
+ switch (lc->cu.part_mode) {
+ case PART_2Nx2N:
+ hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
+ break;
+ case PART_2NxN:
+ hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0);
+ hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1);
+ break;
+ case PART_Nx2N:
+ hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0);
+ hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1);
+ break;
+ case PART_2NxnU:
+ hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0);
+ hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1);
+ break;
+ case PART_2NxnD:
+ hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0);
+ hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1);
+ break;
+ case PART_nLx2N:
+ hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0);
+ hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1);
+ break;
+ case PART_nRx2N:
+ hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0);
+ hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1);
+ break;
+ case PART_NxN:
+ hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0);
+ hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1);
+ hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2);
+ hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3);
+ break;
+ }
+ }
+
+ if (!lc->cu.pcm_flag) {
+ if (lc->cu.pred_mode != MODE_INTRA &&
+ !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
+ lc->cu.rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
+ }
+ if (lc->cu.rqt_root_cbf) {
+ lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
+ s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
+ s->sps->max_transform_hierarchy_depth_inter;
+ hls_transform_tree(s, x0, y0, x0, y0, x0, y0, log2_cb_size,
+ log2_cb_size, 0, 0);
+ } else {
+ if (!s->sh.disable_deblocking_filter_flag)
+ ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,
+ lc->slice_or_tiles_up_boundary,
+ lc->slice_or_tiles_left_boundary);
+ }
+ }
+ }
+
+ if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)
+ ff_hevc_set_qPy(s, x0, y0, x0, y0, log2_cb_size);
+
+ x = y_cb * min_cb_width + x_cb;
+ for (y = 0; y < length; y++) {
+ memset(&s->qp_y_tab[x], lc->qp_y, length);
+ x += min_cb_width;
+ }
+
+ set_ct_depth(s, x0, y0, log2_cb_size, lc->ct.depth);
+
+ return 0;
+}
+
+static int hls_coding_quadtree(HEVCContext *s, int x0, int y0,
+ int log2_cb_size, int cb_depth)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ const int cb_size = 1 << log2_cb_size;
+
+ lc->ct.depth = cb_depth;
+ if (x0 + cb_size <= s->sps->width &&
+ y0 + cb_size <= s->sps->height &&
+ log2_cb_size > s->sps->log2_min_cb_size) {
+ SAMPLE(s->split_cu_flag, x0, y0) =
+ ff_hevc_split_coding_unit_flag_decode(s, cb_depth, x0, y0);
+ } else {
+ SAMPLE(s->split_cu_flag, x0, y0) =
+ (log2_cb_size > s->sps->log2_min_cb_size);
+ }
+ if (s->pps->cu_qp_delta_enabled_flag &&
+ log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth) {
+ lc->tu.is_cu_qp_delta_coded = 0;
+ lc->tu.cu_qp_delta = 0;
+ }
+
+ if (SAMPLE(s->split_cu_flag, x0, y0)) {
+ const int cb_size_split = cb_size >> 1;
+ const int x1 = x0 + cb_size_split;
+ const int y1 = y0 + cb_size_split;
+
+ log2_cb_size--;
+ cb_depth++;
+
+#define SUBDIVIDE(x, y) \
+do { \
+ if (x < s->sps->width && y < s->sps->height) { \
+ int ret = hls_coding_quadtree(s, x, y, log2_cb_size, cb_depth);\
+ if (ret < 0) \
+ return ret; \
+ } \
+} while (0)
+
+ SUBDIVIDE(x0, y0);
+ SUBDIVIDE(x1, y0);
+ SUBDIVIDE(x0, y1);
+ SUBDIVIDE(x1, y1);
+ } else {
+ int ret = hls_coding_unit(s, x0, y0, log2_cb_size);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
+ int ctb_addr_ts)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int ctb_size = 1 << s->sps->log2_ctb_size;
+ int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
+ int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
+
+ int tile_left_boundary, tile_up_boundary;
+ int slice_left_boundary, slice_up_boundary;
+
+ s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
+
+ if (s->pps->entropy_coding_sync_enabled_flag) {
+ if (x_ctb == 0 && (y_ctb & (ctb_size - 1)) == 0)
+ lc->first_qp_group = 1;
+ lc->end_of_tiles_x = s->sps->width;
+ } else if (s->pps->tiles_enabled_flag) {
+ if (ctb_addr_ts && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
+ int idxX = s->pps->col_idxX[x_ctb >> s->sps->log2_ctb_size];
+ lc->start_of_tiles_x = x_ctb;
+ lc->end_of_tiles_x = x_ctb + (s->pps->column_width[idxX] << s->sps->log2_ctb_size);
+ lc->first_qp_group = 1;
+ }
+ } else {
+ lc->end_of_tiles_x = s->sps->width;
+ }
+
+ lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
+
+ if (s->pps->tiles_enabled_flag) {
+ tile_left_boundary = x_ctb > 0 &&
+ s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - 1]];
+ slice_left_boundary = x_ctb > 0 &&
+ s->tab_slice_address[ctb_addr_rs] == s->tab_slice_address[ctb_addr_rs - 1];
+ tile_up_boundary = y_ctb > 0 &&
+ s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
+ slice_up_boundary = y_ctb > 0 &&
+ s->tab_slice_address[ctb_addr_rs] == s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width];
+ } else {
+ tile_left_boundary =
+ tile_up_boundary = 1;
+ slice_left_boundary = ctb_addr_in_slice > 0;
+ slice_up_boundary = ctb_addr_in_slice >= s->sps->ctb_width;
+ }
+ lc->slice_or_tiles_left_boundary = (!slice_left_boundary) + (!tile_left_boundary << 1);
+ lc->slice_or_tiles_up_boundary = (!slice_up_boundary + (!tile_up_boundary << 1));
+ lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && tile_left_boundary);
+ lc->ctb_up_flag = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && tile_up_boundary);
+ lc->ctb_up_right_flag = ((y_ctb > 0) && (ctb_addr_in_slice+1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs+1 - s->sps->ctb_width]]));
+ lc->ctb_up_left_flag = ((x_ctb > 0) && (y_ctb > 0) && (ctb_addr_in_slice-1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1 - s->sps->ctb_width]]));
+}
+
+static int hls_slice_data(HEVCContext *s)
+{
+ int ctb_size = 1 << s->sps->log2_ctb_size;
+ int more_data = 1;
+ int x_ctb = 0;
+ int y_ctb = 0;
+ int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs];
+ int ret;
+
+ while (more_data && ctb_addr_ts < s->sps->ctb_size) {
+ int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
+
+ x_ctb = (ctb_addr_rs % ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
+ y_ctb = (ctb_addr_rs / ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
+ hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
+
+ ff_hevc_cabac_init(s, ctb_addr_ts);
+
+ hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
+
+ s->deblock[ctb_addr_rs].beta_offset = s->sh.beta_offset;
+ s->deblock[ctb_addr_rs].tc_offset = s->sh.tc_offset;
+ s->filter_slice_edges[ctb_addr_rs] = s->sh.slice_loop_filter_across_slices_enabled_flag;
+
+ ret = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
+ if (ret < 0)
+ return ret;
+ more_data = !ff_hevc_end_of_slice_flag_decode(s);
+
+ ctb_addr_ts++;
+ ff_hevc_save_states(s, ctb_addr_ts);
+ ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
+ }
+
+ if (x_ctb + ctb_size >= s->sps->width &&
+ y_ctb + ctb_size >= s->sps->height)
+ ff_hevc_hls_filter(s, x_ctb, y_ctb);
+
+ return ctb_addr_ts;
+}
+
+/**
+ * @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
+ * 0 if the unit should be skipped, 1 otherwise
+ */
+static int hls_nal_unit(HEVCContext *s)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ int nuh_layer_id;
+
+ if (get_bits1(gb) != 0)
+ return AVERROR_INVALIDDATA;
+
+ s->nal_unit_type = get_bits(gb, 6);
+
+ nuh_layer_id = get_bits(gb, 6);
+ s->temporal_id = get_bits(gb, 3) - 1;
+ if (s->temporal_id < 0)
+ return AVERROR_INVALIDDATA;
+
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "nal_unit_type: %d, nuh_layer_id: %dtemporal_id: %d\n",
+ s->nal_unit_type, nuh_layer_id, s->temporal_id);
+
+ return nuh_layer_id == 0;
+}
+
+static void restore_tqb_pixels(HEVCContext *s)
+{
+ int min_pu_size = 1 << s->sps->log2_min_pu_size;
+ int x, y, c_idx;
+
+ for (c_idx = 0; c_idx < 3; c_idx++) {
+ ptrdiff_t stride = s->frame->linesize[c_idx];
+ int hshift = s->sps->hshift[c_idx];
+ int vshift = s->sps->vshift[c_idx];
+ for (y = 0; y < s->sps->min_pu_height; y++) {
+ for (x = 0; x < s->sps->min_pu_width; x++) {
+ if (s->is_pcm[y * s->sps->min_pu_width + x]) {
+ int n;
+ int len = min_pu_size >> hshift;
+ uint8_t *src = &s->frame->data[c_idx][((y << s->sps->log2_min_pu_size) >> vshift) * stride + (((x << s->sps->log2_min_pu_size) >> hshift) << s->sps->pixel_shift)];
+ uint8_t *dst = &s->sao_frame->data[c_idx][((y << s->sps->log2_min_pu_size) >> vshift) * stride + (((x << s->sps->log2_min_pu_size) >> hshift) << s->sps->pixel_shift)];
+ for (n = 0; n < (min_pu_size >> vshift); n++) {
+ memcpy(dst, src, len);
+ src += stride;
+ dst += stride;
+ }
+ }
+ }
+ }
+ }
+}
+
+static int hevc_frame_start(HEVCContext *s)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int ret;
+
+ memset(s->horizontal_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
+ memset(s->vertical_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
+ memset(s->cbf_luma, 0, s->sps->min_tb_width * s->sps->min_tb_height);
+ memset(s->is_pcm, 0, s->sps->min_pu_width * s->sps->min_pu_height);
+
+ lc->start_of_tiles_x = 0;
+ s->is_decoded = 0;
+
+ if (s->pps->tiles_enabled_flag)
+ lc->end_of_tiles_x = s->pps->column_width[0] << s->sps->log2_ctb_size;
+
+ ret = ff_hevc_set_new_ref(s, s->sps->sao_enabled ? &s->sao_frame : &s->frame,
+ s->poc);
+ if (ret < 0)
+ goto fail;
+
+ av_fast_malloc(&lc->edge_emu_buffer, &lc->edge_emu_buffer_size,
+ (MAX_PB_SIZE + 7) * s->ref->frame->linesize[0]);
+ if (!lc->edge_emu_buffer) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ ret = ff_hevc_frame_rps(s);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Error constructing the frame RPS.\n");
+ goto fail;
+ }
+
+ av_frame_unref(s->output_frame);
+ ret = ff_hevc_output_frame(s, s->output_frame, 0);
+ if (ret < 0)
+ goto fail;
+
+ ff_thread_finish_setup(s->avctx);
+
+ return 0;
+
+fail:
+ if (s->ref)
+ ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
+ s->ref = NULL;
+ return ret;
+}
+
+static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ GetBitContext *gb = &lc->gb;
+ int ctb_addr_ts, ret;
+
+ ret = init_get_bits8(gb, nal, length);
+ if (ret < 0)
+ return ret;
+
+ ret = hls_nal_unit(s);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
+ s->nal_unit_type);
+ if (s->avctx->err_recognition & AV_EF_EXPLODE)
+ return ret;
+ return 0;
+ } else if (!ret)
+ return 0;
+
+ switch (s->nal_unit_type) {
+ case NAL_VPS:
+ ret = ff_hevc_decode_nal_vps(s);
+ if (ret < 0)
+ return ret;
+ break;
+ case NAL_SPS:
+ ret = ff_hevc_decode_nal_sps(s);
+ if (ret < 0)
+ return ret;
+ break;
+ case NAL_PPS:
+ ret = ff_hevc_decode_nal_pps(s);
+ if (ret < 0)
+ return ret;
+ break;
+ case NAL_SEI_PREFIX:
+ case NAL_SEI_SUFFIX:
+ ret = ff_hevc_decode_nal_sei(s);
+ if (ret < 0)
+ return ret;
+ break;
+ case NAL_TRAIL_R:
+ case NAL_TRAIL_N:
+ case NAL_TSA_N:
+ case NAL_TSA_R:
+ case NAL_STSA_N:
+ case NAL_STSA_R:
+ case NAL_BLA_W_LP:
+ case NAL_BLA_W_RADL:
+ case NAL_BLA_N_LP:
+ case NAL_IDR_W_RADL:
+ case NAL_IDR_N_LP:
+ case NAL_CRA_NUT:
+ case NAL_RADL_N:
+ case NAL_RADL_R:
+ case NAL_RASL_N:
+ case NAL_RASL_R:
+ ret = hls_slice_header(s);
+ if (ret < 0)
+ return ret;
+
+ if (s->max_ra == INT_MAX) {
+ if (s->nal_unit_type == NAL_CRA_NUT || IS_BLA(s)) {
+ s->max_ra = s->poc;
+ } else {
+ if (IS_IDR(s))
+ s->max_ra = INT_MIN;
+ }
+ }
+
+ if ((s->nal_unit_type == NAL_RASL_R || s->nal_unit_type == NAL_RASL_N) &&
+ s->poc <= s->max_ra) {
+ s->is_decoded = 0;
+ break;
+ } else {
+ if (s->nal_unit_type == NAL_RASL_R && s->poc > s->max_ra)
+ s->max_ra = INT_MIN;
+ }
+
+ if (s->sh.first_slice_in_pic_flag) {
+ ret = hevc_frame_start(s);
+ if (ret < 0)
+ return ret;
+ } else if (!s->ref) {
+ av_log(s->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (!s->sh.dependent_slice_segment_flag &&
+ s->sh.slice_type != I_SLICE) {
+ ret = ff_hevc_slice_rpl(s);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Error constructing the reference lists for the current slice.\n");
+ if (s->avctx->err_recognition & AV_EF_EXPLODE)
+ return ret;
+ }
+ }
+
+ ctb_addr_ts = hls_slice_data(s);
+ if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
+ s->is_decoded = 1;
+ if ((s->pps->transquant_bypass_enable_flag ||
+ (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
+ s->sps->sao_enabled)
+ restore_tqb_pixels(s);
+ }
+
+ if (ctb_addr_ts < 0)
+ return ctb_addr_ts;
+ break;
+ case NAL_EOS_NUT:
+ case NAL_EOB_NUT:
+ s->seq_decode = (s->seq_decode + 1) & 0xff;
+ s->max_ra = INT_MAX;
+ break;
+ case NAL_AUD:
+ case NAL_FD_NUT:
+ break;
+ default:
+ av_log(s->avctx, AV_LOG_INFO,
+ "Skipping NAL unit %d\n", s->nal_unit_type);
+ }
+
+ return 0;
+}
+
+/* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
+ * between these functions would be nice. */
+static int extract_rbsp(const uint8_t *src, int length,
+ HEVCNAL *nal)
+{
+ int i, si, di;
+ uint8_t *dst;
+
+#define STARTCODE_TEST \
+ if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
+ if (src[i + 2] != 3) { \
+ /* startcode, so we must be past the end */ \
+ length = i; \
+ } \
+ break; \
+ }
+#if HAVE_FAST_UNALIGNED
+#define FIND_FIRST_ZERO \
+ if (i > 0 && !src[i]) \
+ i--; \
+ while (src[i]) \
+ i++
+#if HAVE_FAST_64BIT
+ for (i = 0; i + 1 < length; i += 9) {
+ if (!((~AV_RN64A(src + i) &
+ (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
+ 0x8000800080008080ULL))
+ continue;
+ FIND_FIRST_ZERO;
+ STARTCODE_TEST;
+ i -= 7;
+ }
+#else
+ for (i = 0; i + 1 < length; i += 5) {
+ if (!((~AV_RN32A(src + i) &
+ (AV_RN32A(src + i) - 0x01000101U)) &
+ 0x80008080U))
+ continue;
+ FIND_FIRST_ZERO;
+ STARTCODE_TEST;
+ i -= 3;
+ }
+#endif /* HAVE_FAST_64BIT */
+#else
+ for (i = 0; i + 1 < length; i += 2) {
+ if (src[i])
+ continue;
+ if (i > 0 && src[i - 1] == 0)
+ i--;
+ STARTCODE_TEST;
+ }
+#endif /* HAVE_FAST_UNALIGNED */
+
+ if (i >= length - 1) { // no escaped 0
+ nal->data = src;
+ nal->size = length;
+ return length;
+ }
+
+ av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
+ length + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!nal->rbsp_buffer)
+ return AVERROR(ENOMEM);
+
+ dst = nal->rbsp_buffer;
+
+ memcpy(dst, src, i);
+ si = di = i;
+ while (si + 2 < length) {
+ // remove escapes (very rare 1:2^22)
+ if (src[si + 2] > 3) {
+ dst[di++] = src[si++];
+ dst[di++] = src[si++];
+ } else if (src[si] == 0 && src[si + 1] == 0) {
+ if (src[si + 2] == 3) { // escape
+ dst[di++] = 0;
+ dst[di++] = 0;
+ si += 3;
+
+ continue;
+ } else // next start code
+ goto nsc;
+ }
+
+ dst[di++] = src[si++];
+ }
+ while (si < length)
+ dst[di++] = src[si++];
+
+nsc:
+ memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+
+ nal->data = dst;
+ nal->size = di;
+ return si;
+}
+
+static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
+{
+ int i, consumed, ret = 0;
+
+ s->ref = NULL;
+ s->eos = 0;
+
+ /* split the input packet into NAL units, so we know the upper bound on the
+ * number of slices in the frame */
+ s->nb_nals = 0;
+ while (length >= 4) {
+ HEVCNAL *nal;
+ int extract_length = 0;
+
+ if (s->is_nalff) {
+ int i;
+ for (i = 0; i < s->nal_length_size; i++)
+ extract_length = (extract_length << 8) | buf[i];
+ buf += s->nal_length_size;
+ length -= s->nal_length_size;
+
+ if (extract_length > length) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit size.\n");
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+ } else {
+ if (buf[2] == 0) {
+ length--;
+ buf++;
+ continue;
+ }
+ if (buf[0] != 0 || buf[1] != 0 || buf[2] != 1) {
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ buf += 3;
+ length -= 3;
+ extract_length = length;
+ }
+
+ if (s->nals_allocated < s->nb_nals + 1) {
+ int new_size = s->nals_allocated + 1;
+ HEVCNAL *tmp = av_realloc_array(s->nals, new_size, sizeof(*tmp));
+ if (!tmp) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ s->nals = tmp;
+ memset(s->nals + s->nals_allocated, 0,
+ (new_size - s->nals_allocated) * sizeof(*tmp));
+ s->nals_allocated = new_size;
+ }
+ nal = &s->nals[s->nb_nals++];
+
+ consumed = extract_rbsp(buf, extract_length, nal);
+ if (consumed < 0) {
+ ret = consumed;
+ goto fail;
+ }
+
+ ret = init_get_bits8(&s->HEVClc.gb, nal->data, nal->size);
+ if (ret < 0)
+ goto fail;
+ hls_nal_unit(s);
+
+ if (s->nal_unit_type == NAL_EOB_NUT ||
+ s->nal_unit_type == NAL_EOS_NUT)
+ s->eos = 1;
+
+ buf += consumed;
+ length -= consumed;
+ }
+
+ /* parse the NAL units */
+ for (i = 0; i < s->nb_nals; i++) {
+ int ret = decode_nal_unit(s, s->nals[i].data, s->nals[i].size);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Error parsing NAL unit #%d.\n", i);
+ if (s->avctx->err_recognition & AV_EF_EXPLODE)
+ goto fail;
+ }
+ }
+
+fail:
+ if (s->ref)
+ ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
+
+ return ret;
+}
+
+static void print_md5(void *log_ctx, int level, uint8_t md5[16])
+{
+ int i;
+ for (i = 0; i < 16; i++)
+ av_log(log_ctx, level, "%02"PRIx8, md5[i]);
+}
+
+static int verify_md5(HEVCContext *s, AVFrame *frame)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ int pixel_shift = desc->comp[0].depth_minus1 > 7;
+ int i, j;
+
+ if (!desc)
+ return AVERROR(EINVAL);
+
+ av_log(s->avctx, AV_LOG_DEBUG, "Verifying checksum for frame with POC %d: ",
+ s->poc);
+
+ /* the checksums are LE, so we have to byteswap for >8bpp formats
+ * on BE arches */
+#if HAVE_BIGENDIAN
+ if (pixel_shift && !s->checksum_buf) {
+ av_fast_malloc(&s->checksum_buf, &s->checksum_buf_size,
+ FFMAX3(frame->linesize[0], frame->linesize[1],
+ frame->linesize[2]));
+ if (!s->checksum_buf)
+ return AVERROR(ENOMEM);
+ }
+#endif
+
+ for (i = 0; frame->data[i]; i++) {
+ int width = s->avctx->coded_width;
+ int height = s->avctx->coded_height;
+ int w = (i == 1 || i == 2) ? (width >> desc->log2_chroma_w) : width;
+ int h = (i == 1 || i == 2) ? (height >> desc->log2_chroma_h) : height;
+ uint8_t md5[16];
+
+ av_md5_init(s->md5_ctx);
+ for (j = 0; j < h; j++) {
+ const uint8_t *src = frame->data[i] + j * frame->linesize[i];
+#if HAVE_BIGENDIAN
+ if (pixel_shift) {
+ s->dsp.bswap16_buf((uint16_t*)s->checksum_buf,
+ (const uint16_t*)src, w);
+ src = s->checksum_buf;
+ }
+#endif
+ av_md5_update(s->md5_ctx, src, w << pixel_shift);
+ }
+ av_md5_final(s->md5_ctx, md5);
+
+ if (!memcmp(md5, s->md5[i], 16)) {
+ av_log (s->avctx, AV_LOG_DEBUG, "plane %d - correct ", i);
+ print_md5(s->avctx, AV_LOG_DEBUG, md5);
+ av_log (s->avctx, AV_LOG_DEBUG, "; ");
+ } else {
+ av_log (s->avctx, AV_LOG_ERROR, "mismatching checksum of plane %d - ", i);
+ print_md5(s->avctx, AV_LOG_ERROR, md5);
+ av_log (s->avctx, AV_LOG_ERROR, " != ");
+ print_md5(s->avctx, AV_LOG_ERROR, s->md5[i]);
+ av_log (s->avctx, AV_LOG_ERROR, "\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+
+ return 0;
+}
+
+static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
+ AVPacket *avpkt)
+{
+ int ret;
+ HEVCContext *s = avctx->priv_data;
+
+ if (!avpkt->size) {
+ ret = ff_hevc_output_frame(s, data, 1);
+ if (ret < 0)
+ return ret;
+
+ *got_output = ret;
+ return 0;
+ }
+
+ s->ref = NULL;
+ ret = decode_nal_units(s, avpkt->data, avpkt->size);
+ if (ret < 0)
+ return ret;
+
+ /* verify the SEI checksum */
+ if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
+ s->is_md5) {
+ ret = verify_md5(s, s->ref->frame);
+ if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
+ ff_hevc_unref_frame(s, s->ref, ~0);
+ return ret;
+ }
+ }
+ s->is_md5 = 0;
+
+ if (s->is_decoded) {
+ av_log(avctx, AV_LOG_DEBUG, "Decoded frame with POC %d.\n", s->poc);
+ s->is_decoded = 0;
+ }
+
+ if (s->output_frame->buf[0]) {
+ av_frame_move_ref(data, s->output_frame);
+ *got_output = 1;
+ }
+
+ return avpkt->size;
+}
+
+static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
+{
+ int ret = ff_thread_ref_frame(&dst->tf, &src->tf);
+ if (ret < 0)
+ return ret;
+
+ dst->tab_mvf_buf = av_buffer_ref(src->tab_mvf_buf);
+ if (!dst->tab_mvf_buf)
+ goto fail;
+ dst->tab_mvf = src->tab_mvf;
+
+ dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf);
+ if (!dst->rpl_tab_buf)
+ goto fail;
+ dst->rpl_tab = src->rpl_tab;
+
+ dst->rpl_buf = av_buffer_ref(src->rpl_buf);
+ if (!dst->rpl_buf)
+ goto fail;
+
+ dst->poc = src->poc;
+ dst->ctb_count = src->ctb_count;
+ dst->window = src->window;
+ dst->flags = src->flags;
+ dst->sequence = src->sequence;
+
+ return 0;
+fail:
+ ff_hevc_unref_frame(s, dst, ~0);
+ return AVERROR(ENOMEM);
+}
+
+static av_cold int hevc_decode_free(AVCodecContext *avctx)
+{
+ HEVCContext *s = avctx->priv_data;
+ HEVCLocalContext *lc = &s->HEVClc;
+ int i;
+
+ pic_arrays_free(s);
+
+ av_freep(&lc->edge_emu_buffer);
+ av_freep(&s->md5_ctx);
+
+ av_frame_free(&s->tmp_frame);
+ av_frame_free(&s->output_frame);
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ ff_hevc_unref_frame(s, &s->DPB[i], ~0);
+ av_frame_free(&s->DPB[i].frame);
+ }
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++)
+ av_freep(&s->vps_list[i]);
+ for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
+ av_buffer_unref(&s->sps_list[i]);
+ for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
+ av_buffer_unref(&s->pps_list[i]);
+
+ for (i = 0; i < s->nals_allocated; i++)
+ av_freep(&s->nals[i].rbsp_buffer);
+ av_freep(&s->nals);
+ s->nals_allocated = 0;
+
+ return 0;
+}
+
+static av_cold int hevc_init_context(AVCodecContext *avctx)
+{
+ HEVCContext *s = avctx->priv_data;
+ int i;
+
+ s->avctx = avctx;
+
+ s->tmp_frame = av_frame_alloc();
+ if (!s->tmp_frame)
+ goto fail;
+
+ s->output_frame = av_frame_alloc();
+ if (!s->output_frame)
+ goto fail;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ s->DPB[i].frame = av_frame_alloc();
+ if (!s->DPB[i].frame)
+ goto fail;
+ s->DPB[i].tf.f = s->DPB[i].frame;
+ }
+
+ s->max_ra = INT_MAX;
+
+ s->md5_ctx = av_md5_alloc();
+ if (!s->md5_ctx)
+ goto fail;
+
+ ff_dsputil_init(&s->dsp, avctx);
+
+ s->context_initialized = 1;
+
+ return 0;
+
+fail:
+ hevc_decode_free(avctx);
+ return AVERROR(ENOMEM);
+}
+
+static int hevc_update_thread_context(AVCodecContext *dst,
+ const AVCodecContext *src)
+{
+ HEVCContext *s = dst->priv_data;
+ HEVCContext *s0 = src->priv_data;
+ int i, ret;
+
+ if (!s->context_initialized) {
+ ret = hevc_init_context(dst);
+ if (ret < 0)
+ return ret;
+ }
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ ff_hevc_unref_frame(s, &s->DPB[i], ~0);
+ if (s0->DPB[i].frame->buf[0]) {
+ ret = hevc_ref_frame(s, &s->DPB[i], &s0->DPB[i]);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
+ av_buffer_unref(&s->sps_list[i]);
+ if (s0->sps_list[i]) {
+ s->sps_list[i] = av_buffer_ref(s0->sps_list[i]);
+ if (!s->sps_list[i])
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
+ av_buffer_unref(&s->pps_list[i]);
+ if (s0->pps_list[i]) {
+ s->pps_list[i] = av_buffer_ref(s0->pps_list[i]);
+ if (!s->pps_list[i])
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ if (s->sps != s0->sps)
+ ret = set_sps(s, s0->sps);
+
+ s->seq_decode = s0->seq_decode;
+ s->seq_output = s0->seq_output;
+ s->pocTid0 = s0->pocTid0;
+ s->max_ra = s0->max_ra;
+
+ s->is_nalff = s0->is_nalff;
+ s->nal_length_size = s0->nal_length_size;
+
+ if (s0->eos) {
+ s->seq_decode = (s->seq_decode + 1) & 0xff;
+ s->max_ra = INT_MAX;
+ }
+
+ return 0;
+}
+
+static int hevc_decode_extradata(HEVCContext *s)
+{
+ AVCodecContext *avctx = s->avctx;
+ GetByteContext gb;
+ int ret;
+
+ bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
+
+ if (avctx->extradata_size > 3 &&
+ (avctx->extradata[0] || avctx->extradata[1] ||
+ avctx->extradata[2] > 1)) {
+ /* It seems the extradata is encoded as hvcC format.
+ * Temporarily, we support configurationVersion==0 until 14496-15 3rd
+ * is finalized. When finalized, configurationVersion will be 1 and we
+ * can recognize hvcC by checking if avctx->extradata[0]==1 or not. */
+ int i, j, num_arrays, nal_len_size;
+
+ s->is_nalff = 1;
+
+ bytestream2_skip(&gb, 21);
+ nal_len_size = (bytestream2_get_byte(&gb) & 3) + 1;
+ num_arrays = bytestream2_get_byte(&gb);
+
+ /* nal units in the hvcC always have length coded with 2 bytes,
+ * so put a fake nal_length_size = 2 while parsing them */
+ s->nal_length_size = 2;
+
+ /* Decode nal units from hvcC. */
+ for (i = 0; i < num_arrays; i++) {
+ int type = bytestream2_get_byte(&gb) & 0x3f;
+ int cnt = bytestream2_get_be16(&gb);
+
+ for (j = 0; j < cnt; j++) {
+ // +2 for the nal size field
+ int nalsize = bytestream2_peek_be16(&gb) + 2;
+ if (bytestream2_get_bytes_left(&gb) < nalsize) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid NAL unit size in extradata.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ ret = decode_nal_units(s, gb.buffer, nalsize);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Decoding nal unit %d %d from hvcC failed\n",
+ type, i);
+ return ret;
+ }
+ bytestream2_skip(&gb, nalsize);
+ }
+ }
+
+ /* Now store right nal length size, that will be used to parse
+ * all other nals */
+ s->nal_length_size = nal_len_size;
+ } else {
+ s->is_nalff = 0;
+ ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
+static av_cold int hevc_decode_init(AVCodecContext *avctx)
+{
+ HEVCContext *s = avctx->priv_data;
+ int ret;
+
+ ff_init_cabac_states();
+
+ avctx->internal->allocate_progress = 1;
+
+ ret = hevc_init_context(avctx);
+ if (ret < 0)
+ return ret;
+
+ if (avctx->extradata_size > 0 && avctx->extradata) {
+ ret = hevc_decode_extradata(s);
+ if (ret < 0) {
+ hevc_decode_free(avctx);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static av_cold int hevc_init_thread_copy(AVCodecContext *avctx)
+{
+ HEVCContext *s = avctx->priv_data;
+ int ret;
+
+ memset(s, 0, sizeof(*s));
+
+ ret = hevc_init_context(avctx);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void hevc_decode_flush(AVCodecContext *avctx)
+{
+ HEVCContext *s = avctx->priv_data;
+ ff_hevc_flush_dpb(s);
+ s->max_ra = INT_MAX;
+}
+
+#define OFFSET(x) offsetof(HEVCContext, x)
+#define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption options[] = {
+ { "apply_defdispwin", "Apply default display window from VUI", OFFSET(apply_defdispwin),
+ AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
+ { NULL },
+};
+
+static const AVClass hevc_decoder_class = {
+ .class_name = "HEVC decoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_hevc_decoder = {
+ .name = "hevc",
+ .long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_HEVC,
+ .priv_data_size = sizeof(HEVCContext),
+ .priv_class = &hevc_decoder_class,
+ .init = hevc_decode_init,
+ .close = hevc_decode_free,
+ .decode = hevc_decode_frame,
+ .flush = hevc_decode_flush,
+ .update_thread_context = hevc_update_thread_context,
+ .init_thread_copy = hevc_init_thread_copy,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY |
+ CODEC_CAP_FRAME_THREADS,
+};
diff --git a/libavcodec/hevc.h b/libavcodec/hevc.h
new file mode 100644
index 0000000..ab95035
--- /dev/null
+++ b/libavcodec/hevc.h
@@ -0,0 +1,1066 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_HEVC_H
+#define AVCODEC_HEVC_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavutil/buffer.h"
+#include "libavutil/md5.h"
+
+#include "avcodec.h"
+#include "cabac.h"
+#include "dsputil.h"
+#include "get_bits.h"
+#include "internal.h"
+#include "thread.h"
+#include "videodsp.h"
+
+#define MAX_DPB_SIZE 16 // A.4.1
+#define MAX_REFS 16
+
+/**
+ * 7.4.2.1
+ */
+#define MAX_SUB_LAYERS 7
+#define MAX_VPS_COUNT 16
+#define MAX_SPS_COUNT 32
+#define MAX_PPS_COUNT 256
+#define MAX_SHORT_TERM_RPS_COUNT 64
+#define MAX_CU_SIZE 128
+
+//TODO: check if this is really the maximum
+#define MAX_TRANSFORM_DEPTH 5
+
+#define MAX_TB_SIZE 32
+#define MAX_PB_SIZE 64
+#define MAX_LOG2_CTB_SIZE 6
+#define MAX_QP 51
+#define DEFAULT_INTRA_TC_OFFSET 2
+
+#define HEVC_CONTEXTS 183
+
+#define MRG_MAX_NUM_CANDS 5
+
+#define L0 0
+#define L1 1
+
+#define EPEL_EXTRA_BEFORE 1
+#define EPEL_EXTRA_AFTER 2
+#define EPEL_EXTRA 3
+
+/**
+ * Value of the luma sample at position (x, y) in the 2D array tab.
+ */
+#define SAMPLE(tab, x, y) ((tab)[(y) * s->sps->width + (x)])
+#define SAMPLE_CTB(tab, x, y) ((tab)[(y) * min_cb_width + (x)])
+#define SAMPLE_CBF(tab, x, y) ((tab)[((y) & ((1<<log2_trafo_size)-1)) * MAX_CU_SIZE + ((x) & ((1<<log2_trafo_size)-1))])
+
+#define IS_IDR(s) (s->nal_unit_type == NAL_IDR_W_RADL || s->nal_unit_type == NAL_IDR_N_LP)
+#define IS_BLA(s) (s->nal_unit_type == NAL_BLA_W_RADL || s->nal_unit_type == NAL_BLA_W_LP || \
+ s->nal_unit_type == NAL_BLA_N_LP)
+#define IS_IRAP(s) (s->nal_unit_type >= 16 && s->nal_unit_type <= 23)
+
+/**
+ * Table 7-3: NAL unit type codes
+ */
+enum NALUnitType {
+ NAL_TRAIL_N = 0,
+ NAL_TRAIL_R = 1,
+ NAL_TSA_N = 2,
+ NAL_TSA_R = 3,
+ NAL_STSA_N = 4,
+ NAL_STSA_R = 5,
+ NAL_RADL_N = 6,
+ NAL_RADL_R = 7,
+ NAL_RASL_N = 8,
+ NAL_RASL_R = 9,
+ NAL_BLA_W_LP = 16,
+ NAL_BLA_W_RADL = 17,
+ NAL_BLA_N_LP = 18,
+ NAL_IDR_W_RADL = 19,
+ NAL_IDR_N_LP = 20,
+ NAL_CRA_NUT = 21,
+ NAL_VPS = 32,
+ NAL_SPS = 33,
+ NAL_PPS = 34,
+ NAL_AUD = 35,
+ NAL_EOS_NUT = 36,
+ NAL_EOB_NUT = 37,
+ NAL_FD_NUT = 38,
+ NAL_SEI_PREFIX = 39,
+ NAL_SEI_SUFFIX = 40,
+};
+
+enum RPSType {
+ ST_CURR_BEF = 0,
+ ST_CURR_AFT,
+ ST_FOLL,
+ LT_CURR,
+ LT_FOLL,
+ NB_RPS_TYPE,
+};
+
+enum SliceType {
+ B_SLICE = 0,
+ P_SLICE = 1,
+ I_SLICE = 2,
+};
+
+enum SyntaxElement {
+ SAO_MERGE_FLAG = 0,
+ SAO_TYPE_IDX,
+ SAO_EO_CLASS,
+ SAO_BAND_POSITION,
+ SAO_OFFSET_ABS,
+ SAO_OFFSET_SIGN,
+ END_OF_SLICE_FLAG,
+ SPLIT_CODING_UNIT_FLAG,
+ CU_TRANSQUANT_BYPASS_FLAG,
+ SKIP_FLAG,
+ CU_QP_DELTA,
+ PRED_MODE_FLAG,
+ PART_MODE,
+ PCM_FLAG,
+ PREV_INTRA_LUMA_PRED_FLAG,
+ MPM_IDX,
+ REM_INTRA_LUMA_PRED_MODE,
+ INTRA_CHROMA_PRED_MODE,
+ MERGE_FLAG,
+ MERGE_IDX,
+ INTER_PRED_IDC,
+ REF_IDX_L0,
+ REF_IDX_L1,
+ ABS_MVD_GREATER0_FLAG,
+ ABS_MVD_GREATER1_FLAG,
+ ABS_MVD_MINUS2,
+ MVD_SIGN_FLAG,
+ MVP_LX_FLAG,
+ NO_RESIDUAL_DATA_FLAG,
+ SPLIT_TRANSFORM_FLAG,
+ CBF_LUMA,
+ CBF_CB_CR,
+ TRANSFORM_SKIP_FLAG,
+ LAST_SIGNIFICANT_COEFF_X_PREFIX,
+ LAST_SIGNIFICANT_COEFF_Y_PREFIX,
+ LAST_SIGNIFICANT_COEFF_X_SUFFIX,
+ LAST_SIGNIFICANT_COEFF_Y_SUFFIX,
+ SIGNIFICANT_COEFF_GROUP_FLAG,
+ SIGNIFICANT_COEFF_FLAG,
+ COEFF_ABS_LEVEL_GREATER1_FLAG,
+ COEFF_ABS_LEVEL_GREATER2_FLAG,
+ COEFF_ABS_LEVEL_REMAINING,
+ COEFF_SIGN_FLAG,
+};
+
+enum PartMode {
+ PART_2Nx2N = 0,
+ PART_2NxN = 1,
+ PART_Nx2N = 2,
+ PART_NxN = 3,
+ PART_2NxnU = 4,
+ PART_2NxnD = 5,
+ PART_nLx2N = 6,
+ PART_nRx2N = 7,
+};
+
+enum PredMode {
+ MODE_INTER = 0,
+ MODE_INTRA,
+ MODE_SKIP,
+};
+
+enum InterPredIdc {
+ PRED_L0 = 0,
+ PRED_L1,
+ PRED_BI,
+};
+
+enum IntraPredMode {
+ INTRA_PLANAR = 0,
+ INTRA_DC,
+ INTRA_ANGULAR_2,
+ INTRA_ANGULAR_3,
+ INTRA_ANGULAR_4,
+ INTRA_ANGULAR_5,
+ INTRA_ANGULAR_6,
+ INTRA_ANGULAR_7,
+ INTRA_ANGULAR_8,
+ INTRA_ANGULAR_9,
+ INTRA_ANGULAR_10,
+ INTRA_ANGULAR_11,
+ INTRA_ANGULAR_12,
+ INTRA_ANGULAR_13,
+ INTRA_ANGULAR_14,
+ INTRA_ANGULAR_15,
+ INTRA_ANGULAR_16,
+ INTRA_ANGULAR_17,
+ INTRA_ANGULAR_18,
+ INTRA_ANGULAR_19,
+ INTRA_ANGULAR_20,
+ INTRA_ANGULAR_21,
+ INTRA_ANGULAR_22,
+ INTRA_ANGULAR_23,
+ INTRA_ANGULAR_24,
+ INTRA_ANGULAR_25,
+ INTRA_ANGULAR_26,
+ INTRA_ANGULAR_27,
+ INTRA_ANGULAR_28,
+ INTRA_ANGULAR_29,
+ INTRA_ANGULAR_30,
+ INTRA_ANGULAR_31,
+ INTRA_ANGULAR_32,
+ INTRA_ANGULAR_33,
+ INTRA_ANGULAR_34,
+};
+
+enum SAOType {
+ SAO_NOT_APPLIED = 0,
+ SAO_BAND,
+ SAO_EDGE,
+};
+
+enum SAOEOClass {
+ SAO_EO_HORIZ = 0,
+ SAO_EO_VERT,
+ SAO_EO_135D,
+ SAO_EO_45D,
+};
+
+enum ScanType {
+ SCAN_DIAG = 0,
+ SCAN_HORIZ,
+ SCAN_VERT,
+};
+
+typedef struct ShortTermRPS {
+ int num_negative_pics;
+ int num_delta_pocs;
+ int32_t delta_poc[32];
+ uint8_t used[32];
+} ShortTermRPS;
+
+typedef struct LongTermRPS {
+ int poc[32];
+ uint8_t used[32];
+ uint8_t nb_refs;
+} LongTermRPS;
+
+typedef struct RefPicList {
+ struct HEVCFrame *ref[MAX_REFS];
+ int list[MAX_REFS];
+ int isLongTerm[MAX_REFS];
+ int nb_refs;
+} RefPicList;
+
+typedef struct RefPicListTab {
+ RefPicList refPicList[2];
+} RefPicListTab;
+
+typedef struct HEVCWindow {
+ int left_offset;
+ int right_offset;
+ int top_offset;
+ int bottom_offset;
+} HEVCWindow;
+
+typedef struct VUI {
+ AVRational sar;
+
+ int overscan_info_present_flag;
+ int overscan_appropriate_flag;
+
+ int video_signal_type_present_flag;
+ int video_format;
+ int video_full_range_flag;
+ int colour_description_present_flag;
+ uint8_t colour_primaries;
+ uint8_t transfer_characteristic;
+ uint8_t matrix_coeffs;
+
+ int chroma_loc_info_present_flag;
+ int chroma_sample_loc_type_top_field;
+ int chroma_sample_loc_type_bottom_field;
+ int neutra_chroma_indication_flag;
+
+ int field_seq_flag;
+ int frame_field_info_present_flag;
+
+ int default_display_window_flag;
+ HEVCWindow def_disp_win;
+
+ int vui_timing_info_present_flag;
+ uint32_t vui_num_units_in_tick;
+ uint32_t vui_time_scale;
+ int vui_poc_proportional_to_timing_flag;
+ int vui_num_ticks_poc_diff_one_minus1;
+ int vui_hrd_parameters_present_flag;
+
+ int bitstream_restriction_flag;
+ int tiles_fixed_structure_flag;
+ int motion_vectors_over_pic_boundaries_flag;
+ int restricted_ref_pic_lists_flag;
+ int min_spatial_segmentation_idc;
+ int max_bytes_per_pic_denom;
+ int max_bits_per_min_cu_denom;
+ int log2_max_mv_length_horizontal;
+ int log2_max_mv_length_vertical;
+} VUI;
+
+typedef struct PTL {
+ int general_profile_space;
+ uint8_t general_tier_flag;
+ int general_profile_idc;
+ int general_profile_compatibility_flag[32];
+ int general_level_idc;
+
+ uint8_t sub_layer_profile_present_flag[MAX_SUB_LAYERS];
+ uint8_t sub_layer_level_present_flag[MAX_SUB_LAYERS];
+
+ int sub_layer_profile_space[MAX_SUB_LAYERS];
+ uint8_t sub_layer_tier_flag[MAX_SUB_LAYERS];
+ int sub_layer_profile_idc[MAX_SUB_LAYERS];
+ uint8_t sub_layer_profile_compatibility_flags[MAX_SUB_LAYERS][32];
+ int sub_layer_level_idc[MAX_SUB_LAYERS];
+} PTL;
+
+typedef struct HEVCVPS {
+ uint8_t vps_temporal_id_nesting_flag;
+ int vps_max_layers;
+ int vps_max_sub_layers; ///< vps_max_temporal_layers_minus1 + 1
+
+ PTL ptl;
+ int vps_sub_layer_ordering_info_present_flag;
+ unsigned int vps_max_dec_pic_buffering[MAX_SUB_LAYERS];
+ unsigned int vps_num_reorder_pics[MAX_SUB_LAYERS];
+ unsigned int vps_max_latency_increase[MAX_SUB_LAYERS];
+ int vps_max_layer_id;
+ int vps_num_layer_sets; ///< vps_num_layer_sets_minus1 + 1
+ uint8_t vps_timing_info_present_flag;
+ uint32_t vps_num_units_in_tick;
+ uint32_t vps_time_scale;
+ uint8_t vps_poc_proportional_to_timing_flag;
+ int vps_num_ticks_poc_diff_one; ///< vps_num_ticks_poc_diff_one_minus1 + 1
+ int vps_num_hrd_parameters;
+} HEVCVPS;
+
+typedef struct ScalingList {
+ /* This is a little wasteful, since sizeID 0 only needs 8 coeffs,
+ * and size ID 3 only has 2 arrays, not 6. */
+ uint8_t sl[4][6][64];
+ uint8_t sl_dc[2][6];
+} ScalingList;
+
+typedef struct HEVCSPS {
+ int vps_id;
+ int chroma_format_idc;
+ uint8_t separate_colour_plane_flag;
+
+ ///< output (i.e. cropped) values
+ int output_width, output_height;
+ HEVCWindow output_window;
+
+ HEVCWindow pic_conf_win;
+
+ int bit_depth;
+ int pixel_shift;
+ enum AVPixelFormat pix_fmt;
+
+ unsigned int log2_max_poc_lsb;
+ int pcm_enabled_flag;
+
+ int max_sub_layers;
+ struct {
+ int max_dec_pic_buffering;
+ int num_reorder_pics;
+ int max_latency_increase;
+ } temporal_layer[MAX_SUB_LAYERS];
+
+ VUI vui;
+ PTL ptl;
+
+ uint8_t scaling_list_enable_flag;
+ ScalingList scaling_list;
+
+ unsigned int nb_st_rps;
+ ShortTermRPS st_rps[MAX_SHORT_TERM_RPS_COUNT];
+
+ uint8_t amp_enabled_flag;
+ uint8_t sao_enabled;
+
+ uint8_t long_term_ref_pics_present_flag;
+ uint16_t lt_ref_pic_poc_lsb_sps[32];
+ uint8_t used_by_curr_pic_lt_sps_flag[32];
+ uint8_t num_long_term_ref_pics_sps;
+
+ struct {
+ uint8_t bit_depth;
+ unsigned int log2_min_pcm_cb_size;
+ unsigned int log2_max_pcm_cb_size;
+ uint8_t loop_filter_disable_flag;
+ } pcm;
+ uint8_t sps_temporal_mvp_enabled_flag;
+ uint8_t sps_strong_intra_smoothing_enable_flag;
+
+ unsigned int log2_min_cb_size;
+ unsigned int log2_diff_max_min_coding_block_size;
+ unsigned int log2_min_tb_size;
+ unsigned int log2_max_trafo_size;
+ unsigned int log2_ctb_size;
+ unsigned int log2_min_pu_size;
+
+ int max_transform_hierarchy_depth_inter;
+ int max_transform_hierarchy_depth_intra;
+
+ ///< coded frame dimension in various units
+ int width;
+ int height;
+ int ctb_width;
+ int ctb_height;
+ int ctb_size;
+ int min_cb_width;
+ int min_cb_height;
+ int min_tb_width;
+ int min_tb_height;
+ int min_pu_width;
+ int min_pu_height;
+
+ int hshift[3];
+ int vshift[3];
+
+ int qp_bd_offset;
+} HEVCSPS;
+
+typedef struct HEVCPPS {
+ int sps_id; ///< seq_parameter_set_id
+
+ uint8_t sign_data_hiding_flag;
+
+ uint8_t cabac_init_present_flag;
+
+ int num_ref_idx_l0_default_active; ///< num_ref_idx_l0_default_active_minus1 + 1
+ int num_ref_idx_l1_default_active; ///< num_ref_idx_l1_default_active_minus1 + 1
+ int pic_init_qp_minus26;
+
+ uint8_t constrained_intra_pred_flag;
+ uint8_t transform_skip_enabled_flag;
+
+ uint8_t cu_qp_delta_enabled_flag;
+ int diff_cu_qp_delta_depth;
+
+ int cb_qp_offset;
+ int cr_qp_offset;
+ uint8_t pic_slice_level_chroma_qp_offsets_present_flag;
+ uint8_t weighted_pred_flag;
+ uint8_t weighted_bipred_flag;
+ uint8_t output_flag_present_flag;
+ uint8_t transquant_bypass_enable_flag;
+
+ uint8_t dependent_slice_segments_enabled_flag;
+ uint8_t tiles_enabled_flag;
+ uint8_t entropy_coding_sync_enabled_flag;
+
+ int num_tile_columns; ///< num_tile_columns_minus1 + 1
+ int num_tile_rows; ///< num_tile_rows_minus1 + 1
+ uint8_t uniform_spacing_flag;
+ uint8_t loop_filter_across_tiles_enabled_flag;
+
+ uint8_t seq_loop_filter_across_slices_enabled_flag;
+
+ uint8_t deblocking_filter_control_present_flag;
+ uint8_t deblocking_filter_override_enabled_flag;
+ uint8_t disable_dbf;
+ int beta_offset; ///< beta_offset_div2 * 2
+ int tc_offset; ///< tc_offset_div2 * 2
+
+ uint8_t scaling_list_data_present_flag;
+ ScalingList scaling_list;
+
+ uint8_t lists_modification_present_flag;
+ int log2_parallel_merge_level; ///< log2_parallel_merge_level_minus2 + 2
+ int num_extra_slice_header_bits;
+ uint8_t slice_header_extension_present_flag;
+
+ // Inferred parameters
+ int *column_width; ///< ColumnWidth
+ int *row_height; ///< RowHeight
+ int *col_bd; ///< ColBd
+ int *row_bd; ///< RowBd
+ int *col_idxX;
+
+ int *ctb_addr_rs_to_ts; ///< CtbAddrRSToTS
+ int *ctb_addr_ts_to_rs; ///< CtbAddrTSToRS
+ int *tile_id; ///< TileId
+ int *tile_pos_rs; ///< TilePosRS
+ int *min_cb_addr_zs; ///< MinCbAddrZS
+ int *min_tb_addr_zs; ///< MinTbAddrZS
+} HEVCPPS;
+
+typedef struct SliceHeader {
+ int pps_id;
+
+ ///< address (in raster order) of the first block in the current slice segment
+ unsigned int slice_segment_addr;
+ ///< address (in raster order) of the first block in the current slice
+ unsigned int slice_addr;
+
+ enum SliceType slice_type;
+
+ int pic_order_cnt_lsb;
+
+ uint8_t first_slice_in_pic_flag;
+ uint8_t dependent_slice_segment_flag;
+ uint8_t pic_output_flag;
+ uint8_t colour_plane_id;
+
+ ///< RPS coded in the slice header itself is stored here
+ ShortTermRPS slice_rps;
+ const ShortTermRPS *short_term_rps;
+ LongTermRPS long_term_rps;
+ unsigned int list_entry_lx[2][32];
+
+ uint8_t rpl_modification_flag[2];
+ uint8_t no_output_of_prior_pics_flag;
+ uint8_t slice_temporal_mvp_enabled_flag;
+
+ unsigned int nb_refs[2];
+
+ uint8_t slice_sample_adaptive_offset_flag[3];
+ uint8_t mvd_l1_zero_flag;
+
+ uint8_t cabac_init_flag;
+ uint8_t disable_deblocking_filter_flag; ///< slice_header_disable_deblocking_filter_flag
+ uint8_t slice_loop_filter_across_slices_enabled_flag;
+ uint8_t collocated_list;
+
+ unsigned int collocated_ref_idx;
+
+ int slice_qp_delta;
+ int slice_cb_qp_offset;
+ int slice_cr_qp_offset;
+
+ int beta_offset; ///< beta_offset_div2 * 2
+ int tc_offset; ///< tc_offset_div2 * 2
+
+ unsigned int max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand
+
+ int num_entry_point_offsets;
+
+ int8_t slice_qp;
+
+ uint8_t luma_log2_weight_denom;
+ int16_t chroma_log2_weight_denom;
+
+ int16_t luma_weight_l0[16];
+ int16_t chroma_weight_l0[16][2];
+ int16_t chroma_weight_l1[16][2];
+ int16_t luma_weight_l1[16];
+
+ int16_t luma_offset_l0[16];
+ int16_t chroma_offset_l0[16][2];
+
+ int16_t luma_offset_l1[16];
+ int16_t chroma_offset_l1[16][2];
+
+ int slice_ctb_addr_rs;
+} SliceHeader;
+
+typedef struct CodingTree {
+ int depth; ///< ctDepth
+} CodingTree;
+
+typedef struct CodingUnit {
+ int x;
+ int y;
+
+ enum PredMode pred_mode; ///< PredMode
+ enum PartMode part_mode; ///< PartMode
+
+ uint8_t rqt_root_cbf;
+
+ uint8_t pcm_flag;
+
+ // Inferred parameters
+ uint8_t intra_split_flag; ///< IntraSplitFlag
+ uint8_t max_trafo_depth; ///< MaxTrafoDepth
+ uint8_t cu_transquant_bypass_flag;
+} CodingUnit;
+
+typedef struct Mv {
+ int16_t x; ///< horizontal component of motion vector
+ int16_t y; ///< vertical component of motion vector
+} Mv;
+
+typedef struct MvField {
+ Mv mv[2];
+ int8_t ref_idx[2];
+ int8_t pred_flag[2];
+ uint8_t is_intra;
+} MvField;
+
+typedef struct NeighbourAvailable {
+ int cand_bottom_left;
+ int cand_left;
+ int cand_up;
+ int cand_up_left;
+ int cand_up_right;
+ int cand_up_right_sap;
+} NeighbourAvailable;
+
+typedef struct PredictionUnit {
+ int mpm_idx;
+ int rem_intra_luma_pred_mode;
+ uint8_t intra_pred_mode[4];
+ Mv mvd;
+ uint8_t merge_flag;
+ uint8_t intra_pred_mode_c;
+} PredictionUnit;
+
+typedef struct TransformTree {
+ uint8_t cbf_cb[MAX_TRANSFORM_DEPTH][MAX_CU_SIZE * MAX_CU_SIZE];
+ uint8_t cbf_cr[MAX_TRANSFORM_DEPTH][MAX_CU_SIZE * MAX_CU_SIZE];
+ uint8_t cbf_luma;
+
+ // Inferred parameters
+ uint8_t inter_split_flag;
+} TransformTree;
+
+typedef struct TransformUnit {
+ int cu_qp_delta;
+
+ // Inferred parameters;
+ int cur_intra_pred_mode;
+ uint8_t is_cu_qp_delta_coded;
+} TransformUnit;
+
+typedef struct SAOParams {
+ int offset_abs[3][4]; ///< sao_offset_abs
+ int offset_sign[3][4]; ///< sao_offset_sign
+
+ int band_position[3]; ///< sao_band_position
+
+ int eo_class[3]; ///< sao_eo_class
+
+ int offset_val[3][5]; ///<SaoOffsetVal
+
+ uint8_t type_idx[3]; ///< sao_type_idx
+} SAOParams;
+
+typedef struct DBParams {
+ int beta_offset;
+ int tc_offset;
+} DBParams;
+
+#define HEVC_FRAME_FLAG_OUTPUT (1 << 0)
+#define HEVC_FRAME_FLAG_SHORT_REF (1 << 1)
+#define HEVC_FRAME_FLAG_LONG_REF (1 << 2)
+
+typedef struct HEVCFrame {
+ AVFrame *frame;
+ ThreadFrame tf;
+ MvField *tab_mvf;
+ RefPicList *refPicList;
+ RefPicListTab **rpl_tab;
+ int ctb_count;
+ int poc;
+ struct HEVCFrame *collocated_ref;
+
+ HEVCWindow window;
+
+ AVBufferRef *tab_mvf_buf;
+ AVBufferRef *rpl_tab_buf;
+ AVBufferRef *rpl_buf;
+
+ /**
+ * A sequence counter, so that old frames are output first
+ * after a POC reset
+ */
+ uint16_t sequence;
+
+ /**
+ * A combination of HEVC_FRAME_FLAG_*
+ */
+ uint8_t flags;
+} HEVCFrame;
+
+typedef struct HEVCNAL {
+ uint8_t *rbsp_buffer;
+ int rbsp_buffer_size;
+
+ int size;
+ const uint8_t *data;
+} HEVCNAL;
+
+typedef struct HEVCDSPContext {
+ void (*put_pcm)(uint8_t *dst, ptrdiff_t stride, int size,
+ GetBitContext *gb, int pcm_bit_depth);
+
+ void (*transquant_bypass[4])(uint8_t *dst, int16_t *coeffs,
+ ptrdiff_t stride);
+
+ void (*transform_skip)(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
+ void (*transform_4x4_luma_add)(uint8_t *dst, int16_t *coeffs,
+ ptrdiff_t stride);
+ void (*transform_add[4])(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
+
+ void (*sao_band_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+ struct SAOParams *sao, int *borders,
+ int width, int height, int c_idx);
+ void (*sao_edge_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+ struct SAOParams *sao, int *borders, int width,
+ int height, int c_idx, uint8_t vert_edge,
+ uint8_t horiz_edge, uint8_t diag_edge);
+
+ void (*put_hevc_qpel[4][4])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
+ ptrdiff_t srcstride, int width, int height,
+ int16_t *mcbuffer);
+ void (*put_hevc_epel[2][2])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
+ ptrdiff_t srcstride, int width, int height,
+ int mx, int my, int16_t *mcbuffer);
+
+ void (*put_unweighted_pred)(uint8_t *dst, ptrdiff_t dststride, int16_t *src,
+ ptrdiff_t srcstride, int width, int height);
+ void (*put_weighted_pred_avg)(uint8_t *dst, ptrdiff_t dststride,
+ int16_t *src1, int16_t *src2,
+ ptrdiff_t srcstride, int width, int height);
+ void (*weighted_pred)(uint8_t denom, int16_t wlxFlag, int16_t olxFlag,
+ uint8_t *dst, ptrdiff_t dststride, int16_t *src,
+ ptrdiff_t srcstride, int width, int height);
+ void (*weighted_pred_avg)(uint8_t denom, int16_t wl0Flag, int16_t wl1Flag,
+ int16_t ol0Flag, int16_t ol1Flag, uint8_t *dst,
+ ptrdiff_t dststride, int16_t *src1, int16_t *src2,
+ ptrdiff_t srcstride, int width, int height);
+
+ void (*hevc_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
+ int *beta, int *tc,
+ uint8_t *no_p, uint8_t *no_q);
+ void (*hevc_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
+ int *beta, int *tc,
+ uint8_t *no_p, uint8_t *no_q);
+ void (*hevc_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
+ int *tc, uint8_t *no_p, uint8_t *no_q);
+ void (*hevc_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
+ int *tc, uint8_t *no_p, uint8_t *no_q);
+ void (*hevc_h_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
+ int *beta, int *tc,
+ uint8_t *no_p, uint8_t *no_q);
+ void (*hevc_v_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
+ int *beta, int *tc,
+ uint8_t *no_p, uint8_t *no_q);
+ void (*hevc_h_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
+ int *tc, uint8_t *no_p,
+ uint8_t *no_q);
+ void (*hevc_v_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
+ int *tc, uint8_t *no_p,
+ uint8_t *no_q);
+} HEVCDSPContext;
+
+struct HEVCContext;
+
+typedef struct HEVCPredContext {
+ void (*intra_pred)(struct HEVCContext *s, int x0, int y0,
+ int log2_size, int c_idx);
+
+ void (*pred_planar[4])(uint8_t *src, const uint8_t *top,
+ const uint8_t *left, ptrdiff_t stride);
+ void (*pred_dc)(uint8_t *src, const uint8_t *top, const uint8_t *left,
+ ptrdiff_t stride, int log2_size, int c_idx);
+ void (*pred_angular[4])(uint8_t *src, const uint8_t *top,
+ const uint8_t *left, ptrdiff_t stride,
+ int c_idx, int mode);
+} HEVCPredContext;
+
+typedef struct HEVCLocalContext {
+ DECLARE_ALIGNED(16, int16_t, mc_buffer[(MAX_PB_SIZE + 7) * MAX_PB_SIZE]);
+ uint8_t cabac_state[HEVC_CONTEXTS];
+
+ uint8_t first_qp_group;
+
+ GetBitContext gb;
+ CABACContext cc;
+ TransformTree tt;
+
+ int8_t qp_y;
+ int8_t curr_qp_y;
+
+ TransformUnit tu;
+
+ uint8_t ctb_left_flag;
+ uint8_t ctb_up_flag;
+ uint8_t ctb_up_right_flag;
+ uint8_t ctb_up_left_flag;
+ int start_of_tiles_x;
+ int end_of_tiles_x;
+ int end_of_tiles_y;
+ uint8_t *edge_emu_buffer;
+ int edge_emu_buffer_size;
+ CodingTree ct;
+ CodingUnit cu;
+ PredictionUnit pu;
+ NeighbourAvailable na;
+
+ uint8_t slice_or_tiles_left_boundary;
+ uint8_t slice_or_tiles_up_boundary;
+} HEVCLocalContext;
+
+typedef struct HEVCContext {
+ const AVClass *c; // needed by private avoptions
+ AVCodecContext *avctx;
+
+ HEVCLocalContext HEVClc;
+
+ uint8_t cabac_state[HEVC_CONTEXTS];
+
+ /** 1 if the independent slice segment header was successfully parsed */
+ uint8_t slice_initialized;
+
+ AVFrame *frame;
+ AVFrame *sao_frame;
+ AVFrame *tmp_frame;
+ AVFrame *output_frame;
+
+ const HEVCVPS *vps;
+ const HEVCSPS *sps;
+ const HEVCPPS *pps;
+ HEVCVPS *vps_list[MAX_VPS_COUNT];
+ AVBufferRef *sps_list[MAX_SPS_COUNT];
+ AVBufferRef *pps_list[MAX_PPS_COUNT];
+
+ AVBufferPool *tab_mvf_pool;
+ AVBufferPool *rpl_tab_pool;
+
+ ///< candidate references for the current frame
+ RefPicList rps[5];
+
+ SliceHeader sh;
+ SAOParams *sao;
+ DBParams *deblock;
+ enum NALUnitType nal_unit_type;
+ int temporal_id; ///< temporal_id_plus1 - 1
+ HEVCFrame *ref;
+ HEVCFrame DPB[32];
+ int poc;
+ int pocTid0;
+ int slice_idx; ///< number of the slice being currently decoded
+ int eos; ///< current packet contains an EOS/EOB NAL
+ int max_ra;
+ int bs_width;
+ int bs_height;
+
+ int is_decoded;
+
+ HEVCPredContext hpc;
+ HEVCDSPContext hevcdsp;
+ VideoDSPContext vdsp;
+ DSPContext dsp;
+ int8_t *qp_y_tab;
+ uint8_t *split_cu_flag;
+ uint8_t *horizontal_bs;
+ uint8_t *vertical_bs;
+
+ int32_t *tab_slice_address;
+
+ // CU
+ uint8_t *skip_flag;
+ uint8_t *tab_ct_depth;
+ // PU
+ uint8_t *tab_ipm;
+
+ uint8_t *cbf_luma; // cbf_luma of colocated TU
+ uint8_t *is_pcm;
+
+ // CTB-level flags affecting loop filter operation
+ uint8_t *filter_slice_edges;
+
+ /** used on BE to byteswap the lines for checksumming */
+ uint8_t *checksum_buf;
+ int checksum_buf_size;
+
+ /**
+ * Sequence counters for decoded and output frames, so that old
+ * frames are output first after a POC reset
+ */
+ uint16_t seq_decode;
+ uint16_t seq_output;
+
+ HEVCNAL *nals;
+ int nb_nals;
+ int nals_allocated;
+
+ // for checking the frame checksums
+ struct AVMD5 *md5_ctx;
+ uint8_t md5[3][16];
+ uint8_t is_md5;
+
+ uint8_t context_initialized;
+ uint8_t is_nalff; ///< this flag is != 0 if bitstream is encapsulated
+ ///< as a format defined in 14496-15
+ int apply_defdispwin;
+
+ int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
+ int nuh_layer_id;
+} HEVCContext;
+
+int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
+ const HEVCSPS *sps, int is_slice_header);
+int ff_hevc_decode_nal_vps(HEVCContext *s);
+int ff_hevc_decode_nal_sps(HEVCContext *s);
+int ff_hevc_decode_nal_pps(HEVCContext *s);
+int ff_hevc_decode_nal_sei(HEVCContext *s);
+
+/**
+ * Mark all frames in DPB as unused for reference.
+ */
+void ff_hevc_clear_refs(HEVCContext *s);
+
+/**
+ * Drop all frames currently in DPB.
+ */
+void ff_hevc_flush_dpb(HEVCContext *s);
+
+/**
+ * Compute POC of the current frame and return it.
+ */
+int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb);
+
+RefPicList *ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *frame,
+ int x0, int y0);
+
+/**
+ * Construct the reference picture sets for the current frame.
+ */
+int ff_hevc_frame_rps(HEVCContext *s);
+
+/**
+ * Construct the reference picture list(s) for the current slice.
+ */
+int ff_hevc_slice_rpl(HEVCContext *s);
+
+void ff_hevc_save_states(HEVCContext *s, int ctb_addr_ts);
+void ff_hevc_cabac_init(HEVCContext *s, int ctb_addr_ts);
+int ff_hevc_sao_merge_flag_decode(HEVCContext *s);
+int ff_hevc_sao_type_idx_decode(HEVCContext *s);
+int ff_hevc_sao_band_position_decode(HEVCContext *s);
+int ff_hevc_sao_offset_abs_decode(HEVCContext *s);
+int ff_hevc_sao_offset_sign_decode(HEVCContext *s);
+int ff_hevc_sao_eo_class_decode(HEVCContext *s);
+int ff_hevc_end_of_slice_flag_decode(HEVCContext *s);
+int ff_hevc_cu_transquant_bypass_flag_decode(HEVCContext *s);
+int ff_hevc_skip_flag_decode(HEVCContext *s, int x0, int y0,
+ int x_cb, int y_cb);
+int ff_hevc_pred_mode_decode(HEVCContext *s);
+int ff_hevc_split_coding_unit_flag_decode(HEVCContext *s, int ct_depth,
+ int x0, int y0);
+int ff_hevc_part_mode_decode(HEVCContext *s, int log2_cb_size);
+int ff_hevc_pcm_flag_decode(HEVCContext *s);
+int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCContext *s);
+int ff_hevc_mpm_idx_decode(HEVCContext *s);
+int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCContext *s);
+int ff_hevc_intra_chroma_pred_mode_decode(HEVCContext *s);
+int ff_hevc_merge_idx_decode(HEVCContext *s);
+int ff_hevc_merge_flag_decode(HEVCContext *s);
+int ff_hevc_inter_pred_idc_decode(HEVCContext *s, int nPbW, int nPbH);
+int ff_hevc_ref_idx_lx_decode(HEVCContext *s, int num_ref_idx_lx);
+int ff_hevc_mvp_lx_flag_decode(HEVCContext *s);
+int ff_hevc_no_residual_syntax_flag_decode(HEVCContext *s);
+int ff_hevc_abs_mvd_greater0_flag_decode(HEVCContext *s);
+int ff_hevc_abs_mvd_greater1_flag_decode(HEVCContext *s);
+int ff_hevc_mvd_decode(HEVCContext *s);
+int ff_hevc_mvd_sign_flag_decode(HEVCContext *s);
+int ff_hevc_split_transform_flag_decode(HEVCContext *s, int log2_trafo_size);
+int ff_hevc_cbf_cb_cr_decode(HEVCContext *s, int trafo_depth);
+int ff_hevc_cbf_luma_decode(HEVCContext *s, int trafo_depth);
+int ff_hevc_transform_skip_flag_decode(HEVCContext *s, int c_idx);
+int ff_hevc_last_significant_coeff_x_prefix_decode(HEVCContext *s, int c_idx,
+ int log2_size);
+int ff_hevc_last_significant_coeff_y_prefix_decode(HEVCContext *s, int c_idx,
+ int log2_size);
+int ff_hevc_last_significant_coeff_suffix_decode(HEVCContext *s,
+ int last_significant_coeff_prefix);
+int ff_hevc_significant_coeff_group_flag_decode(HEVCContext *s, int c_idx,
+ int ctx_cg);
+int ff_hevc_significant_coeff_flag_decode(HEVCContext *s, int c_idx, int x_c,
+ int y_c, int log2_trafo_size,
+ int scan_idx, int prev_sig);
+int ff_hevc_coeff_abs_level_greater1_flag_decode(HEVCContext *s, int c_idx,
+ int ctx_set);
+int ff_hevc_coeff_abs_level_greater2_flag_decode(HEVCContext *s, int c_idx,
+ int inc);
+int ff_hevc_coeff_abs_level_remaining(HEVCContext *s, int base_level,
+ int rc_rice_param);
+int ff_hevc_coeff_sign_flag(HEVCContext *s, uint8_t nb);
+
+/**
+ * Get the number of candidate references for the current frame.
+ */
+int ff_hevc_frame_nb_refs(HEVCContext *s);
+
+int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc);
+
+/**
+ * Find next frame in output order and put a reference to it in frame.
+ * @return 1 if a frame was output, 0 otherwise
+ */
+int ff_hevc_output_frame(HEVCContext *s, AVFrame *frame, int flush);
+
+void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags);
+
+void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH);
+void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH, int log2_cb_size,
+ int part_idx, int merge_idx, MvField *mv);
+void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH, int log2_cb_size,
+ int part_idx, int merge_idx,
+ MvField *mv, int mvp_lx_flag, int LX);
+void ff_hevc_set_qPy(HEVCContext *s, int xC, int yC, int xBase, int yBase,
+ int log2_cb_size);
+void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
+ int log2_trafo_size,
+ int slice_or_tiles_up_boundary,
+ int slice_or_tiles_left_boundary);
+int ff_hevc_cu_qp_delta_sign_flag(HEVCContext *s);
+int ff_hevc_cu_qp_delta_abs(HEVCContext *s);
+void ff_hevc_hls_filter(HEVCContext *s, int x, int y);
+void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size);
+
+void ff_hevc_pps_free(HEVCPPS **ppps);
+
+void ff_hevc_pred_init(HEVCPredContext *hpc, int bit_depth);
+
+void ff_hevc_dsp_init(HEVCDSPContext *hpc, int bit_depth);
+
+extern const int8_t ff_hevc_epel_filters[7][16];
+
+extern const uint8_t ff_hevc_qpel_extra_before[4];
+extern const uint8_t ff_hevc_qpel_extra_after[4];
+extern const uint8_t ff_hevc_qpel_extra[4];
+
+extern const uint8_t ff_hevc_diag_scan4x4_x[16];
+extern const uint8_t ff_hevc_diag_scan4x4_y[16];
+extern const uint8_t ff_hevc_diag_scan8x8_x[64];
+extern const uint8_t ff_hevc_diag_scan8x8_y[64];
+
+#endif /* AVCODEC_HEVC_H */
diff --git a/libavcodec/hevc_cabac.c b/libavcodec/hevc_cabac.c
new file mode 100644
index 0000000..f2531d4
--- /dev/null
+++ b/libavcodec/hevc_cabac.c
@@ -0,0 +1,872 @@
+/*
+ * HEVC CABAC decoding
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2012 - 2013 Gildas Cocherel
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+
+#include "cabac_functions.h"
+#include "hevc.h"
+
+#define CABAC_MAX_BIN 100
+
+/**
+ * number of bin by SyntaxElement.
+ */
+static const int8_t num_bins_in_se[] = {
+ 1, // sao_merge_flag
+ 1, // sao_type_idx
+ 0, // sao_eo_class
+ 0, // sao_band_position
+ 0, // sao_offset_abs
+ 0, // sao_offset_sign
+ 0, // end_of_slice_flag
+ 3, // split_coding_unit_flag
+ 1, // cu_transquant_bypass_flag
+ 3, // skip_flag
+ 3, // cu_qp_delta
+ 1, // pred_mode
+ 4, // part_mode
+ 0, // pcm_flag
+ 1, // prev_intra_luma_pred_mode
+ 0, // mpm_idx
+ 0, // rem_intra_luma_pred_mode
+ 2, // intra_chroma_pred_mode
+ 1, // merge_flag
+ 1, // merge_idx
+ 5, // inter_pred_idc
+ 2, // ref_idx_l0
+ 2, // ref_idx_l1
+ 2, // abs_mvd_greater0_flag
+ 2, // abs_mvd_greater1_flag
+ 0, // abs_mvd_minus2
+ 0, // mvd_sign_flag
+ 1, // mvp_lx_flag
+ 1, // no_residual_data_flag
+ 3, // split_transform_flag
+ 2, // cbf_luma
+ 4, // cbf_cb, cbf_cr
+ 2, // transform_skip_flag[][]
+ 18, // last_significant_coeff_x_prefix
+ 18, // last_significant_coeff_y_prefix
+ 0, // last_significant_coeff_x_suffix
+ 0, // last_significant_coeff_y_suffix
+ 4, // significant_coeff_group_flag
+ 42, // significant_coeff_flag
+ 24, // coeff_abs_level_greater1_flag
+ 6, // coeff_abs_level_greater2_flag
+ 0, // coeff_abs_level_remaining
+ 0, // coeff_sign_flag
+};
+
+/**
+ * Offset to ctxIdx 0 in init_values and states, indexed by SyntaxElement.
+ */
+static const int elem_offset[sizeof(num_bins_in_se)] = {
+ 0,
+ 1,
+ 2,
+ 2,
+ 2,
+ 2,
+ 2,
+ 2,
+ 5,
+ 6,
+ 9,
+ 12,
+ 13,
+ 17,
+ 17,
+ 18,
+ 18,
+ 18,
+ 20,
+ 21,
+ 22,
+ 27,
+ 29,
+ 31,
+ 33,
+ 35,
+ 35,
+ 35,
+ 36,
+ 37,
+ 40,
+ 42,
+ 46,
+ 48,
+ 66,
+ 84,
+ 84,
+ 84,
+ 88,
+ 130,
+ 154,
+ 160,
+ 160,
+};
+
+#define CNU 154
+/**
+ * Indexed by init_type
+ */
+static const uint8_t init_values[3][HEVC_CONTEXTS] = {
+ { // sao_merge_flag
+ 153,
+ // sao_type_idx
+ 200,
+ // split_coding_unit_flag
+ 139, 141, 157,
+ // cu_transquant_bypass_flag
+ 154,
+ // skip_flag
+ CNU, CNU, CNU,
+ // cu_qp_delta
+ 154, 154, 154,
+ // pred_mode
+ CNU,
+ // part_mode
+ 184, CNU, CNU, CNU,
+ // prev_intra_luma_pred_mode
+ 184,
+ // intra_chroma_pred_mode
+ 63, 139,
+ // merge_flag
+ CNU,
+ // merge_idx
+ CNU,
+ // inter_pred_idc
+ CNU, CNU, CNU, CNU, CNU,
+ // ref_idx_l0
+ CNU, CNU,
+ // ref_idx_l1
+ CNU, CNU,
+ // abs_mvd_greater1_flag
+ CNU, CNU,
+ // abs_mvd_greater1_flag
+ CNU, CNU,
+ // mvp_lx_flag
+ CNU,
+ // no_residual_data_flag
+ CNU,
+ // split_transform_flag
+ 153, 138, 138,
+ // cbf_luma
+ 111, 141,
+ // cbf_cb, cbf_cr
+ 94, 138, 182, 154,
+ // transform_skip_flag
+ 139, 139,
+ // last_significant_coeff_x_prefix
+ 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111,
+ 79, 108, 123, 63,
+ // last_significant_coeff_y_prefix
+ 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111,
+ 79, 108, 123, 63,
+ // significant_coeff_group_flag
+ 91, 171, 134, 141,
+ // significant_coeff_flag
+ 111, 111, 125, 110, 110, 94, 124, 108, 124, 107, 125, 141, 179, 153,
+ 125, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 140,
+ 139, 182, 182, 152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111,
+ // coeff_abs_level_greater1_flag
+ 140, 92, 137, 138, 140, 152, 138, 139, 153, 74, 149, 92, 139, 107,
+ 122, 152, 140, 179, 166, 182, 140, 227, 122, 197,
+ // coeff_abs_level_greater2_flag
+ 138, 153, 136, 167, 152, 152, },
+ { // sao_merge_flag
+ 153,
+ // sao_type_idx
+ 185,
+ // split_coding_unit_flag
+ 107, 139, 126,
+ // cu_transquant_bypass_flag
+ 154,
+ // skip_flag
+ 197, 185, 201,
+ // cu_qp_delta
+ 154, 154, 154,
+ // pred_mode
+ 149,
+ // part_mode
+ 154, 139, 154, 154,
+ // prev_intra_luma_pred_mode
+ 154,
+ // intra_chroma_pred_mode
+ 152, 139,
+ // merge_flag
+ 110,
+ // merge_idx
+ 122,
+ // inter_pred_idc
+ 95, 79, 63, 31, 31,
+ // ref_idx_l0
+ 153, 153,
+ // ref_idx_l1
+ 153, 153,
+ // abs_mvd_greater1_flag
+ 140, 198,
+ // abs_mvd_greater1_flag
+ 140, 198,
+ // mvp_lx_flag
+ 168,
+ // no_residual_data_flag
+ 79,
+ // split_transform_flag
+ 124, 138, 94,
+ // cbf_luma
+ 153, 111,
+ // cbf_cb, cbf_cr
+ 149, 107, 167, 154,
+ // transform_skip_flag
+ 139, 139,
+ // last_significant_coeff_x_prefix
+ 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95,
+ 94, 108, 123, 108,
+ // last_significant_coeff_y_prefix
+ 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95,
+ 94, 108, 123, 108,
+ // significant_coeff_group_flag
+ 121, 140, 61, 154,
+ // significant_coeff_flag
+ 155, 154, 139, 153, 139, 123, 123, 63, 153, 166, 183, 140, 136, 153,
+ 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170,
+ 153, 123, 123, 107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140,
+ // coeff_abs_level_greater1_flag
+ 154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121,
+ 136, 137, 169, 194, 166, 167, 154, 167, 137, 182,
+ // coeff_abs_level_greater2_flag
+ 107, 167, 91, 122, 107, 167, },
+ { // sao_merge_flag
+ 153,
+ // sao_type_idx
+ 160,
+ // split_coding_unit_flag
+ 107, 139, 126,
+ // cu_transquant_bypass_flag
+ 154,
+ // skip_flag
+ 197, 185, 201,
+ // cu_qp_delta
+ 154, 154, 154,
+ // pred_mode
+ 134,
+ // part_mode
+ 154, 139, 154, 154,
+ // prev_intra_luma_pred_mode
+ 183,
+ // intra_chroma_pred_mode
+ 152, 139,
+ // merge_flag
+ 154,
+ // merge_idx
+ 137,
+ // inter_pred_idc
+ 95, 79, 63, 31, 31,
+ // ref_idx_l0
+ 153, 153,
+ // ref_idx_l1
+ 153, 153,
+ // abs_mvd_greater1_flag
+ 169, 198,
+ // abs_mvd_greater1_flag
+ 169, 198,
+ // mvp_lx_flag
+ 168,
+ // no_residual_data_flag
+ 79,
+ // split_transform_flag
+ 224, 167, 122,
+ // cbf_luma
+ 153, 111,
+ // cbf_cb, cbf_cr
+ 149, 92, 167, 154,
+ // transform_skip_flag
+ 139, 139,
+ // last_significant_coeff_x_prefix
+ 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111,
+ 79, 108, 123, 93,
+ // last_significant_coeff_y_prefix
+ 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111,
+ 79, 108, 123, 93,
+ // significant_coeff_group_flag
+ 121, 140, 61, 154,
+ // significant_coeff_flag
+ 170, 154, 139, 153, 139, 123, 123, 63, 124, 166, 183, 140, 136, 153,
+ 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170,
+ 153, 138, 138, 122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140,
+ // coeff_abs_level_greater1_flag
+ 154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121,
+ 136, 122, 169, 208, 166, 167, 154, 152, 167, 182,
+ // coeff_abs_level_greater2_flag
+ 107, 167, 91, 107, 107, 167, },
+};
+
+void ff_hevc_save_states(HEVCContext *s, int ctb_addr_ts)
+{
+ if (s->pps->entropy_coding_sync_enabled_flag &&
+ (ctb_addr_ts % s->sps->ctb_width == 2 ||
+ (s->sps->ctb_width == 2 &&
+ ctb_addr_ts % s->sps->ctb_width == 0))) {
+ memcpy(s->cabac_state, s->HEVClc.cabac_state, HEVC_CONTEXTS);
+ }
+}
+
+static void load_states(HEVCContext *s)
+{
+ memcpy(s->HEVClc.cabac_state, s->cabac_state, HEVC_CONTEXTS);
+}
+
+static void cabac_reinit(HEVCLocalContext *lc)
+{
+ skip_bytes(&lc->cc, 0);
+}
+
+static void cabac_init_decoder(HEVCContext *s)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ skip_bits(gb, 1);
+ align_get_bits(gb);
+ ff_init_cabac_decoder(&s->HEVClc.cc,
+ gb->buffer + get_bits_count(gb) / 8,
+ (get_bits_left(gb) + 7) / 8);
+}
+
+static void cabac_init_state(HEVCContext *s)
+{
+ int init_type = 2 - s->sh.slice_type;
+ int i;
+
+ if (s->sh.cabac_init_flag && s->sh.slice_type != I_SLICE)
+ init_type ^= 3;
+
+ for (i = 0; i < HEVC_CONTEXTS; i++) {
+ int init_value = init_values[init_type][i];
+ int m = (init_value >> 4) * 5 - 45;
+ int n = ((init_value & 15) << 3) - 16;
+ int pre = 2 * (((m * av_clip_c(s->sh.slice_qp, 0, 51)) >> 4) + n) - 127;
+
+ pre ^= pre >> 31;
+ if (pre > 124)
+ pre = 124 + (pre & 1);
+ s->HEVClc.cabac_state[i] = pre;
+ }
+}
+
+void ff_hevc_cabac_init(HEVCContext *s, int ctb_addr_ts)
+{
+ if (ctb_addr_ts == s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs]) {
+ cabac_init_decoder(s);
+ if (s->sh.dependent_slice_segment_flag == 0 ||
+ (s->pps->tiles_enabled_flag &&
+ s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]))
+ cabac_init_state(s);
+
+ if (!s->sh.first_slice_in_pic_flag &&
+ s->pps->entropy_coding_sync_enabled_flag) {
+ if (ctb_addr_ts % s->sps->ctb_width == 0) {
+ if (s->sps->ctb_width == 1)
+ cabac_init_state(s);
+ else if (s->sh.dependent_slice_segment_flag == 1)
+ load_states(s);
+ }
+ }
+ } else {
+ if (s->pps->tiles_enabled_flag &&
+ s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
+ cabac_reinit(&s->HEVClc);
+ cabac_init_state(s);
+ }
+ if (s->pps->entropy_coding_sync_enabled_flag) {
+ if (ctb_addr_ts % s->sps->ctb_width == 0) {
+ get_cabac_terminate(&s->HEVClc.cc);
+ cabac_reinit(&s->HEVClc);
+
+ if (s->sps->ctb_width == 1)
+ cabac_init_state(s);
+ else
+ load_states(s);
+ }
+ }
+ }
+}
+
+#define GET_CABAC(ctx) get_cabac(&s->HEVClc.cc, &s->HEVClc.cabac_state[ctx])
+
+int ff_hevc_sao_merge_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[SAO_MERGE_FLAG]);
+}
+
+int ff_hevc_sao_type_idx_decode(HEVCContext *s)
+{
+ if (!GET_CABAC(elem_offset[SAO_TYPE_IDX]))
+ return 0;
+
+ if (!get_cabac_bypass(&s->HEVClc.cc))
+ return SAO_BAND;
+ return SAO_EDGE;
+}
+
+int ff_hevc_sao_band_position_decode(HEVCContext *s)
+{
+ int i;
+ int value = get_cabac_bypass(&s->HEVClc.cc);
+
+ for (i = 0; i < 4; i++)
+ value = (value << 1) | get_cabac_bypass(&s->HEVClc.cc);
+ return value;
+}
+
+int ff_hevc_sao_offset_abs_decode(HEVCContext *s)
+{
+ int i = 0;
+ int length = (1 << (FFMIN(s->sps->bit_depth, 10) - 5)) - 1;
+
+ while (i < length && get_cabac_bypass(&s->HEVClc.cc))
+ i++;
+ return i;
+}
+
+int ff_hevc_sao_offset_sign_decode(HEVCContext *s)
+{
+ return get_cabac_bypass(&s->HEVClc.cc);
+}
+
+int ff_hevc_sao_eo_class_decode(HEVCContext *s)
+{
+ int ret = get_cabac_bypass(&s->HEVClc.cc) << 1;
+ ret |= get_cabac_bypass(&s->HEVClc.cc);
+ return ret;
+}
+
+int ff_hevc_end_of_slice_flag_decode(HEVCContext *s)
+{
+ return get_cabac_terminate(&s->HEVClc.cc);
+}
+
+int ff_hevc_cu_transquant_bypass_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[CU_TRANSQUANT_BYPASS_FLAG]);
+}
+
+int ff_hevc_skip_flag_decode(HEVCContext *s, int x0, int y0, int x_cb, int y_cb)
+{
+ int min_cb_width = s->sps->min_cb_width;
+ int inc = 0;
+ int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
+ int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
+
+ if (s->HEVClc.ctb_left_flag || x0b)
+ inc = !!SAMPLE_CTB(s->skip_flag, x_cb - 1, y_cb);
+ if (s->HEVClc.ctb_up_flag || y0b)
+ inc += !!SAMPLE_CTB(s->skip_flag, x_cb, y_cb - 1);
+
+ return GET_CABAC(elem_offset[SKIP_FLAG] + inc);
+}
+
+int ff_hevc_cu_qp_delta_abs(HEVCContext *s)
+{
+ int prefix_val = 0;
+ int suffix_val = 0;
+ int inc = 0;
+
+ while (prefix_val < 5 && GET_CABAC(elem_offset[CU_QP_DELTA] + inc)) {
+ prefix_val++;
+ inc = 1;
+ }
+ if (prefix_val >= 5) {
+ int k = 0;
+ while (k < CABAC_MAX_BIN && get_cabac_bypass(&s->HEVClc.cc)) {
+ suffix_val += 1 << k;
+ k++;
+ }
+ if (k == CABAC_MAX_BIN)
+ av_log(s->avctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", k);
+
+ while (k--)
+ suffix_val += get_cabac_bypass(&s->HEVClc.cc) << k;
+ }
+ return prefix_val + suffix_val;
+}
+
+int ff_hevc_cu_qp_delta_sign_flag(HEVCContext *s)
+{
+ return get_cabac_bypass(&s->HEVClc.cc);
+}
+
+int ff_hevc_pred_mode_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[PRED_MODE_FLAG]);
+}
+
+int ff_hevc_split_coding_unit_flag_decode(HEVCContext *s, int ct_depth, int x0, int y0)
+{
+ int inc = 0, depth_left = 0, depth_top = 0;
+ int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
+ int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
+ int x_cb = x0 >> s->sps->log2_min_cb_size;
+ int y_cb = y0 >> s->sps->log2_min_cb_size;
+
+ if (s->HEVClc.ctb_left_flag || x0b)
+ depth_left = s->tab_ct_depth[(y_cb) * s->sps->min_cb_width + x_cb - 1];
+ if (s->HEVClc.ctb_up_flag || y0b)
+ depth_top = s->tab_ct_depth[(y_cb - 1) * s->sps->min_cb_width + x_cb];
+
+ inc += (depth_left > ct_depth);
+ inc += (depth_top > ct_depth);
+
+ return GET_CABAC(elem_offset[SPLIT_CODING_UNIT_FLAG] + inc);
+}
+
+int ff_hevc_part_mode_decode(HEVCContext *s, int log2_cb_size)
+{
+ if (GET_CABAC(elem_offset[PART_MODE])) // 1
+ return PART_2Nx2N;
+ if (log2_cb_size == s->sps->log2_min_cb_size) {
+ if (s->HEVClc.cu.pred_mode == MODE_INTRA) // 0
+ return PART_NxN;
+ if (GET_CABAC(elem_offset[PART_MODE] + 1)) // 01
+ return PART_2NxN;
+ if (log2_cb_size == 3) // 00
+ return PART_Nx2N;
+ if (GET_CABAC(elem_offset[PART_MODE] + 2)) // 001
+ return PART_Nx2N;
+ return PART_NxN; // 000
+ }
+
+ if (!s->sps->amp_enabled_flag) {
+ if (GET_CABAC(elem_offset[PART_MODE] + 1)) // 01
+ return PART_2NxN;
+ return PART_Nx2N;
+ }
+
+ if (GET_CABAC(elem_offset[PART_MODE] + 1)) { // 01X, 01XX
+ if (GET_CABAC(elem_offset[PART_MODE] + 3)) // 011
+ return PART_2NxN;
+ if (get_cabac_bypass(&s->HEVClc.cc)) // 0101
+ return PART_2NxnD;
+ return PART_2NxnU; // 0100
+ }
+
+ if (GET_CABAC(elem_offset[PART_MODE] + 3)) // 001
+ return PART_Nx2N;
+ if (get_cabac_bypass(&s->HEVClc.cc)) // 0001
+ return PART_nRx2N;
+ return PART_nLx2N; // 0000
+}
+
+int ff_hevc_pcm_flag_decode(HEVCContext *s)
+{
+ return get_cabac_terminate(&s->HEVClc.cc);
+}
+
+int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[PREV_INTRA_LUMA_PRED_FLAG]);
+}
+
+int ff_hevc_mpm_idx_decode(HEVCContext *s)
+{
+ int i = 0;
+ while (i < 2 && get_cabac_bypass(&s->HEVClc.cc))
+ i++;
+ return i;
+}
+
+int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCContext *s)
+{
+ int i;
+ int value = get_cabac_bypass(&s->HEVClc.cc);
+
+ for (i = 0; i < 4; i++)
+ value = (value << 1) | get_cabac_bypass(&s->HEVClc.cc);
+ return value;
+}
+
+int ff_hevc_intra_chroma_pred_mode_decode(HEVCContext *s)
+{
+ int ret;
+ if (!GET_CABAC(elem_offset[INTRA_CHROMA_PRED_MODE]))
+ return 4;
+
+ ret = get_cabac_bypass(&s->HEVClc.cc) << 1;
+ ret |= get_cabac_bypass(&s->HEVClc.cc);
+ return ret;
+}
+
+int ff_hevc_merge_idx_decode(HEVCContext *s)
+{
+ int i = GET_CABAC(elem_offset[MERGE_IDX]);
+
+ if (i != 0) {
+ while (i < s->sh.max_num_merge_cand-1 && get_cabac_bypass(&s->HEVClc.cc))
+ i++;
+ }
+ return i;
+}
+
+int ff_hevc_merge_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[MERGE_FLAG]);
+}
+
+int ff_hevc_inter_pred_idc_decode(HEVCContext *s, int nPbW, int nPbH)
+{
+ if (nPbW + nPbH == 12)
+ return GET_CABAC(elem_offset[INTER_PRED_IDC] + 4);
+ if (GET_CABAC(elem_offset[INTER_PRED_IDC] + s->HEVClc.ct.depth))
+ return PRED_BI;
+
+ return GET_CABAC(elem_offset[INTER_PRED_IDC] + 4);
+}
+
+int ff_hevc_ref_idx_lx_decode(HEVCContext *s, int num_ref_idx_lx)
+{
+ int i = 0;
+ int max = num_ref_idx_lx - 1;
+ int max_ctx = FFMIN(max, 2);
+
+ while (i < max_ctx && GET_CABAC(elem_offset[REF_IDX_L0] + i))
+ i++;
+ if (i == 2) {
+ while (i < max && get_cabac_bypass(&s->HEVClc.cc))
+ i++;
+ }
+
+ return i;
+}
+
+int ff_hevc_mvp_lx_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[MVP_LX_FLAG]);
+}
+
+int ff_hevc_no_residual_syntax_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[NO_RESIDUAL_DATA_FLAG]);
+}
+
+int ff_hevc_abs_mvd_greater0_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[ABS_MVD_GREATER0_FLAG]);
+}
+
+int ff_hevc_abs_mvd_greater1_flag_decode(HEVCContext *s)
+{
+ return GET_CABAC(elem_offset[ABS_MVD_GREATER1_FLAG] + 1);
+}
+
+int ff_hevc_mvd_decode(HEVCContext *s)
+{
+ int ret = 2;
+ int k = 1;
+
+ while (k < CABAC_MAX_BIN && get_cabac_bypass(&s->HEVClc.cc)) {
+ ret += 1 << k;
+ k++;
+ }
+ if (k == CABAC_MAX_BIN)
+ av_log(s->avctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", k);
+ while (k--)
+ ret += get_cabac_bypass(&s->HEVClc.cc) << k;
+ return get_cabac_bypass_sign(&s->HEVClc.cc, -ret);
+}
+
+int ff_hevc_mvd_sign_flag_decode(HEVCContext *s)
+{
+ return get_cabac_bypass_sign(&s->HEVClc.cc, -1);
+}
+
+int ff_hevc_split_transform_flag_decode(HEVCContext *s, int log2_trafo_size)
+{
+ return GET_CABAC(elem_offset[SPLIT_TRANSFORM_FLAG] + 5 - log2_trafo_size);
+}
+
+int ff_hevc_cbf_cb_cr_decode(HEVCContext *s, int trafo_depth)
+{
+ return GET_CABAC(elem_offset[CBF_CB_CR] + trafo_depth);
+}
+
+int ff_hevc_cbf_luma_decode(HEVCContext *s, int trafo_depth)
+{
+ return GET_CABAC(elem_offset[CBF_LUMA] + !trafo_depth);
+}
+
+int ff_hevc_transform_skip_flag_decode(HEVCContext *s, int c_idx)
+{
+ return GET_CABAC(elem_offset[TRANSFORM_SKIP_FLAG] + !!c_idx);
+}
+
+#define LAST_SIG_COEFF(elem) \
+ int i = 0; \
+ int max = (log2_size << 1) - 1; \
+ int ctx_offset, ctx_shift; \
+ \
+ if (c_idx == 0) { \
+ ctx_offset = 3 * (log2_size - 2) + ((log2_size - 1) >> 2); \
+ ctx_shift = (log2_size + 1) >> 2; \
+ } else { \
+ ctx_offset = 15; \
+ ctx_shift = log2_size - 2; \
+ } \
+ while (i < max && \
+ GET_CABAC(elem_offset[elem] + (i >> ctx_shift) + ctx_offset)) \
+ i++; \
+ return i;
+
+int ff_hevc_last_significant_coeff_x_prefix_decode(HEVCContext *s, int c_idx,
+ int log2_size)
+{
+ LAST_SIG_COEFF(LAST_SIGNIFICANT_COEFF_X_PREFIX)
+}
+
+int ff_hevc_last_significant_coeff_y_prefix_decode(HEVCContext *s, int c_idx,
+ int log2_size)
+{
+ LAST_SIG_COEFF(LAST_SIGNIFICANT_COEFF_Y_PREFIX)
+}
+
+int ff_hevc_last_significant_coeff_suffix_decode(HEVCContext *s,
+ int last_significant_coeff_prefix)
+{
+ int i;
+ int length = (last_significant_coeff_prefix >> 1) - 1;
+ int value = get_cabac_bypass(&s->HEVClc.cc);
+
+ for (i = 1; i < length; i++)
+ value = (value << 1) | get_cabac_bypass(&s->HEVClc.cc);
+ return value;
+}
+
+int ff_hevc_significant_coeff_group_flag_decode(HEVCContext *s, int c_idx, int ctx_cg)
+{
+ int inc;
+
+ inc = FFMIN(ctx_cg, 1) + (c_idx>0 ? 2 : 0);
+
+ return GET_CABAC(elem_offset[SIGNIFICANT_COEFF_GROUP_FLAG] + inc);
+}
+
+int ff_hevc_significant_coeff_flag_decode(HEVCContext *s, int c_idx, int x_c, int y_c,
+ int log2_trafo_size, int scan_idx, int prev_sig)
+{
+ static const uint8_t ctx_idx_map[] = {
+ 0, 1, 4, 5, 2, 3, 4, 5, 6, 6, 8, 8, 7, 7, 8, 8
+ };
+ int x_cg = x_c >> 2;
+ int y_cg = y_c >> 2;
+ int sig_ctx, inc;
+
+ if (x_c + y_c == 0) {
+ sig_ctx = 0;
+ } else if (log2_trafo_size == 2) {
+ sig_ctx = ctx_idx_map[(y_c << 2) + x_c];
+ } else {
+ switch (prev_sig) {
+ case 0: {
+ int x_off = x_c & 3;
+ int y_off = y_c & 3;
+ sig_ctx = ((x_off + y_off) == 0) ? 2 : ((x_off + y_off) <= 2) ? 1 : 0;
+ }
+ break;
+ case 1:
+ sig_ctx = 2 - FFMIN(y_c & 3, 2);
+ break;
+ case 2:
+ sig_ctx = 2 - FFMIN(x_c & 3, 2);
+ break;
+ default:
+ sig_ctx = 2;
+ }
+
+ if (c_idx == 0 && (x_cg > 0 || y_cg > 0))
+ sig_ctx += 3;
+
+ if (log2_trafo_size == 3) {
+ sig_ctx += (scan_idx == SCAN_DIAG) ? 9 : 15;
+ } else {
+ sig_ctx += c_idx ? 12 : 21;
+ }
+ }
+
+ if (c_idx == 0)
+ inc = sig_ctx;
+ else
+ inc = sig_ctx + 27;
+
+ return GET_CABAC(elem_offset[SIGNIFICANT_COEFF_FLAG] + inc);
+}
+
+int ff_hevc_coeff_abs_level_greater1_flag_decode(HEVCContext *s, int c_idx, int inc)
+{
+
+ if (c_idx > 0)
+ inc += 16;
+
+ return GET_CABAC(elem_offset[COEFF_ABS_LEVEL_GREATER1_FLAG] + inc);
+}
+
+int ff_hevc_coeff_abs_level_greater2_flag_decode(HEVCContext *s, int c_idx, int inc)
+{
+ if (c_idx > 0)
+ inc += 4;
+
+ return GET_CABAC(elem_offset[COEFF_ABS_LEVEL_GREATER2_FLAG] + inc);
+}
+
+int ff_hevc_coeff_abs_level_remaining(HEVCContext *s, int base_level, int rc_rice_param)
+{
+ int prefix = 0;
+ int suffix = 0;
+ int last_coeff_abs_level_remaining;
+ int i;
+
+ while (prefix < CABAC_MAX_BIN && get_cabac_bypass(&s->HEVClc.cc))
+ prefix++;
+ if (prefix == CABAC_MAX_BIN)
+ av_log(s->avctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", prefix);
+ if (prefix < 3) {
+ for (i = 0; i < rc_rice_param; i++)
+ suffix = (suffix << 1) | get_cabac_bypass(&s->HEVClc.cc);
+ last_coeff_abs_level_remaining = (prefix << rc_rice_param) + suffix;
+ } else {
+ int prefix_minus3 = prefix - 3;
+ for (i = 0; i < prefix_minus3 + rc_rice_param; i++)
+ suffix = (suffix << 1) | get_cabac_bypass(&s->HEVClc.cc);
+ last_coeff_abs_level_remaining = (((1 << prefix_minus3) + 3 - 1)
+ << rc_rice_param) + suffix;
+ }
+ return last_coeff_abs_level_remaining;
+}
+
+int ff_hevc_coeff_sign_flag(HEVCContext *s, uint8_t nb)
+{
+ int i;
+ int ret = 0;
+
+ for (i = 0; i < nb; i++)
+ ret = (ret << 1) | get_cabac_bypass(&s->HEVClc.cc);
+ return ret;
+}
diff --git a/libavcodec/hevc_filter.c b/libavcodec/hevc_filter.c
new file mode 100644
index 0000000..bb1e360
--- /dev/null
+++ b/libavcodec/hevc_filter.c
@@ -0,0 +1,745 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2013 Seppo Tomperi
+ * Copyright (C) 2013 Wassim Hamidouche
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/internal.h"
+
+#include "cabac_functions.h"
+#include "golomb.h"
+#include "hevc.h"
+
+#define LUMA 0
+#define CB 1
+#define CR 2
+
+static const uint8_t tctable[54] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // QP 0...18
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, // QP 19...37
+ 5, 5, 6, 6, 7, 8, 9, 10, 11, 13, 14, 16, 18, 20, 22, 24 // QP 38...53
+};
+
+static const uint8_t betatable[52] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 8, // QP 0...18
+ 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, // QP 19...37
+ 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64 // QP 38...51
+};
+
+static int chroma_tc(HEVCContext *s, int qp_y, int c_idx, int tc_offset)
+{
+ static const int qp_c[] = {
+ 29, 30, 31, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37
+ };
+ int qp, qp_i, offset, idxt;
+
+ // slice qp offset is not used for deblocking
+ if (c_idx == 1)
+ offset = s->pps->cb_qp_offset;
+ else
+ offset = s->pps->cr_qp_offset;
+
+ qp_i = av_clip_c(qp_y + offset, 0, 57);
+ if (qp_i < 30)
+ qp = qp_i;
+ else if (qp_i > 43)
+ qp = qp_i - 6;
+ else
+ qp = qp_c[qp_i - 30];
+
+ idxt = av_clip_c(qp + DEFAULT_INTRA_TC_OFFSET + tc_offset, 0, 53);
+ return tctable[idxt];
+}
+
+static int get_qPy_pred(HEVCContext *s, int xC, int yC,
+ int xBase, int yBase, int log2_cb_size)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int ctb_size_mask = (1 << s->sps->log2_ctb_size) - 1;
+ int MinCuQpDeltaSizeMask = (1 << (s->sps->log2_ctb_size -
+ s->pps->diff_cu_qp_delta_depth)) - 1;
+ int xQgBase = xBase - (xBase & MinCuQpDeltaSizeMask);
+ int yQgBase = yBase - (yBase & MinCuQpDeltaSizeMask);
+ int min_cb_width = s->sps->min_cb_width;
+ int min_cb_height = s->sps->min_cb_height;
+ int x_cb = xQgBase >> s->sps->log2_min_cb_size;
+ int y_cb = yQgBase >> s->sps->log2_min_cb_size;
+ int availableA = (xBase & ctb_size_mask) &&
+ (xQgBase & ctb_size_mask);
+ int availableB = (yBase & ctb_size_mask) &&
+ (yQgBase & ctb_size_mask);
+ int qPy_pred, qPy_a, qPy_b;
+
+ // qPy_pred
+ if (lc->first_qp_group) {
+ lc->first_qp_group = !lc->tu.is_cu_qp_delta_coded;
+ qPy_pred = s->sh.slice_qp;
+ } else {
+ qPy_pred = lc->qp_y;
+ if (log2_cb_size < s->sps->log2_ctb_size -
+ s->pps->diff_cu_qp_delta_depth) {
+ static const int offsetX[8][8] = {
+ { -1, 1, 3, 1, 7, 1, 3, 1 },
+ { 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 1, 3, 1, 3, 1, 3, 1, 3 },
+ { 2, 2, 2, 2, 2, 2, 2, 2 },
+ { 3, 5, 7, 5, 3, 5, 7, 5 },
+ { 4, 4, 4, 4, 4, 4, 4, 4 },
+ { 5, 7, 5, 7, 5, 7, 5, 7 },
+ { 6, 6, 6, 6, 6, 6, 6, 6 }
+ };
+ static const int offsetY[8][8] = {
+ { 7, 0, 1, 2, 3, 4, 5, 6 },
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 1, 0, 3, 2, 5, 4, 7, 6 },
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 3, 0, 1, 2, 7, 4, 5, 6 },
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 1, 0, 3, 2, 5, 4, 7, 6 },
+ { 0, 1, 2, 3, 4, 5, 6, 7 }
+ };
+ int xC0b = (xC - (xC & ctb_size_mask)) >> s->sps->log2_min_cb_size;
+ int yC0b = (yC - (yC & ctb_size_mask)) >> s->sps->log2_min_cb_size;
+ int idxX = (xQgBase & ctb_size_mask) >> s->sps->log2_min_cb_size;
+ int idxY = (yQgBase & ctb_size_mask) >> s->sps->log2_min_cb_size;
+ int idx_mask = ctb_size_mask >> s->sps->log2_min_cb_size;
+ int x, y;
+
+ x = FFMIN(xC0b + offsetX[idxX][idxY], min_cb_width - 1);
+ y = FFMIN(yC0b + (offsetY[idxX][idxY] & idx_mask), min_cb_height - 1);
+
+ if (xC0b == (lc->start_of_tiles_x >> s->sps->log2_min_cb_size) &&
+ offsetX[idxX][idxY] == -1) {
+ x = (lc->end_of_tiles_x >> s->sps->log2_min_cb_size) - 1;
+ y = yC0b - 1;
+ }
+ qPy_pred = s->qp_y_tab[y * min_cb_width + x];
+ }
+ }
+
+ // qPy_a
+ if (availableA == 0)
+ qPy_a = qPy_pred;
+ else
+ qPy_a = s->qp_y_tab[(x_cb - 1) + y_cb * min_cb_width];
+
+ // qPy_b
+ if (availableB == 0)
+ qPy_b = qPy_pred;
+ else
+ qPy_b = s->qp_y_tab[x_cb + (y_cb - 1) * min_cb_width];
+
+ return (qPy_a + qPy_b + 1) >> 1;
+}
+
+void ff_hevc_set_qPy(HEVCContext *s, int xC, int yC,
+ int xBase, int yBase, int log2_cb_size)
+{
+ int qp_y = get_qPy_pred(s, xC, yC, xBase, yBase, log2_cb_size);
+
+ if (s->HEVClc.tu.cu_qp_delta != 0) {
+ int off = s->sps->qp_bd_offset;
+ s->HEVClc.qp_y = ((qp_y + s->HEVClc.tu.cu_qp_delta + 52 + 2 * off) %
+ (52 + off)) - off;
+ } else
+ s->HEVClc.qp_y = qp_y;
+}
+
+static int get_qPy(HEVCContext *s, int xC, int yC)
+{
+ int log2_min_cb_size = s->sps->log2_min_cb_size;
+ int x = xC >> log2_min_cb_size;
+ int y = yC >> log2_min_cb_size;
+ return s->qp_y_tab[x + y * s->sps->min_cb_width];
+}
+
+static void copy_CTB(uint8_t *dst, uint8_t *src,
+ int width, int height, int stride)
+{
+ int i;
+
+ for (i = 0; i < height; i++) {
+ memcpy(dst, src, width);
+ dst += stride;
+ src += stride;
+ }
+}
+
+#define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
+
+static void sao_filter_CTB(HEVCContext *s, int x, int y)
+{
+ // TODO: This should be easily parallelizable
+ // TODO: skip CBs when (cu_transquant_bypass_flag || (pcm_loop_filter_disable_flag && pcm_flag))
+ int c_idx = 0;
+ int class = 1, class_index;
+ int edges[4]; // 0 left 1 top 2 right 3 bottom
+ SAOParams *sao[4];
+ int classes[4];
+ int x_shift = 0, y_shift = 0;
+ int x_ctb = x >> s->sps->log2_ctb_size;
+ int y_ctb = y >> s->sps->log2_ctb_size;
+ int ctb_addr_rs = y_ctb * s->sps->ctb_width + x_ctb;
+ int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[ctb_addr_rs];
+
+ // flags indicating unfilterable edges
+ uint8_t vert_edge[] = { 0, 0, 0, 0 };
+ uint8_t horiz_edge[] = { 0, 0, 0, 0 };
+ uint8_t diag_edge[] = { 0, 0, 0, 0 };
+ uint8_t lfase[3]; // current, above, left
+ uint8_t no_tile_filter = s->pps->tiles_enabled_flag &&
+ !s->pps->loop_filter_across_tiles_enabled_flag;
+ uint8_t left_tile_edge = 0, up_tile_edge = 0;
+
+ sao[0] = &CTB(s->sao, x_ctb, y_ctb);
+ edges[0] = x_ctb == 0;
+ edges[1] = y_ctb == 0;
+ edges[2] = x_ctb == s->sps->ctb_width - 1;
+ edges[3] = y_ctb == s->sps->ctb_height - 1;
+ lfase[0] = CTB(s->filter_slice_edges, x_ctb, y_ctb);
+ classes[0] = 0;
+
+ if (!edges[0]) {
+ left_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]];
+ sao[class] = &CTB(s->sao, x_ctb - 1, y_ctb);
+ vert_edge[0] = (!lfase[0] && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb)) || left_tile_edge;
+ vert_edge[2] = vert_edge[0];
+ lfase[2] = CTB(s->filter_slice_edges, x_ctb - 1, y_ctb);
+ classes[class] = 2;
+ class++;
+ x_shift = 8;
+ }
+
+ if (!edges[1]) {
+ up_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
+ sao[class] = &CTB(s->sao, x_ctb, y_ctb - 1);
+ horiz_edge[0] = (!lfase[0] && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) || up_tile_edge;
+ horiz_edge[1] = horiz_edge[0];
+ lfase[1] = CTB(s->filter_slice_edges, x_ctb, y_ctb - 1);
+ classes[class] = 1;
+ class++;
+ y_shift = 4;
+
+ if (!edges[0]) {
+ classes[class] = 3;
+ sao[class] = &CTB(s->sao, x_ctb - 1, y_ctb - 1);
+ class++;
+
+ // Tile check here is done current CTB row/col, not above/left like you'd expect,
+ //but that is because the tile boundary always extends through the whole pic
+ vert_edge[1] = (!lfase[1] && CTB(s->tab_slice_address, x_ctb, y_ctb - 1) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || left_tile_edge;
+ vert_edge[3] = vert_edge[1];
+ horiz_edge[2] = (!lfase[2] && CTB(s->tab_slice_address, x_ctb - 1, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || up_tile_edge;
+ horiz_edge[3] = horiz_edge[2];
+ diag_edge[0] = (!lfase[0] && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || left_tile_edge || up_tile_edge;
+ diag_edge[3] = diag_edge[0];
+
+ // Does left CTB comes after above CTB?
+ if (CTB(s->tab_slice_address, x_ctb - 1, y_ctb) >
+ CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) {
+ diag_edge[2] = !lfase[2] || left_tile_edge || up_tile_edge;
+ diag_edge[1] = diag_edge[2];
+ } else if (CTB(s->tab_slice_address, x_ctb - 1, y_ctb) <
+ CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) {
+ diag_edge[1] = !lfase[1] || left_tile_edge || up_tile_edge;
+ diag_edge[2] = diag_edge[1];
+ } else {
+ // Same slice, only consider tiles
+ diag_edge[2] = left_tile_edge || up_tile_edge;
+ diag_edge[1] = diag_edge[2];
+ }
+ }
+ }
+
+ for (c_idx = 0; c_idx < 3; c_idx++) {
+ int chroma = c_idx ? 1 : 0;
+ int x0 = x >> chroma;
+ int y0 = y >> chroma;
+ int stride = s->frame->linesize[c_idx];
+ int ctb_size = (1 << (s->sps->log2_ctb_size)) >> s->sps->hshift[c_idx];
+ int width = FFMIN(ctb_size,
+ (s->sps->width >> s->sps->hshift[c_idx]) - x0);
+ int height = FFMIN(ctb_size,
+ (s->sps->height >> s->sps->vshift[c_idx]) - y0);
+
+ uint8_t *src = &s->frame->data[c_idx][y0 * stride + (x0 << s->sps->pixel_shift)];
+ uint8_t *dst = &s->sao_frame->data[c_idx][y0 * stride + (x0 << s->sps->pixel_shift)];
+ int offset = (y_shift >> chroma) * stride + ((x_shift >> chroma) << s->sps->pixel_shift);
+
+ copy_CTB(dst - offset, src - offset,
+ (edges[2] ? width + (x_shift >> chroma) : width) << s->sps->pixel_shift,
+ (edges[3] ? height + (y_shift >> chroma) : height), stride);
+
+ for (class_index = 0; class_index < class; class_index++) {
+
+ switch (sao[class_index]->type_idx[c_idx]) {
+ case SAO_BAND:
+ s->hevcdsp.sao_band_filter[classes[class_index]](dst, src,
+ stride,
+ sao[class_index],
+ edges, width,
+ height, c_idx);
+ break;
+ case SAO_EDGE:
+ s->hevcdsp.sao_edge_filter[classes[class_index]](dst, src,
+ stride,
+ sao[class_index],
+ edges, width,
+ height, c_idx,
+ vert_edge[classes[class_index]],
+ horiz_edge[classes[class_index]],
+ diag_edge[classes[class_index]]);
+ break;
+ }
+ }
+ }
+}
+
+static int get_pcm(HEVCContext *s, int x, int y)
+{
+ int log2_min_pu_size = s->sps->log2_min_pu_size;
+ int x_pu = x >> log2_min_pu_size;
+ int y_pu = y >> log2_min_pu_size;
+
+ if (x < 0 || x_pu >= s->sps->min_pu_width ||
+ y < 0 || y_pu >= s->sps->min_pu_height)
+ return 2;
+ return s->is_pcm[y_pu * s->sps->min_pu_width + x_pu];
+}
+
+#define TC_CALC(qp, bs) \
+ tctable[av_clip((qp) + DEFAULT_INTRA_TC_OFFSET * ((bs) - 1) + \
+ (tc_offset >> 1 << 1), \
+ 0, MAX_QP + DEFAULT_INTRA_TC_OFFSET)]
+
+static void deblocking_filter_CTB(HEVCContext *s, int x0, int y0)
+{
+ uint8_t *src;
+ int x, y, x_end, y_end, chroma;
+ int c_tc[2], beta[2], tc[2];
+ uint8_t no_p[2] = { 0 };
+ uint8_t no_q[2] = { 0 };
+
+ int log2_ctb_size = s->sps->log2_ctb_size;
+ int ctb_size = 1 << log2_ctb_size;
+ int ctb = (x0 >> log2_ctb_size) +
+ (y0 >> log2_ctb_size) * s->sps->ctb_width;
+ int cur_tc_offset = s->deblock[ctb].tc_offset;
+ int cur_beta_offset = s->deblock[ctb].beta_offset;
+ int tc_offset, left_tc_offset, beta_offset, left_beta_offset;
+ int pcmf = (s->sps->pcm_enabled_flag &&
+ s->sps->pcm.loop_filter_disable_flag) ||
+ s->pps->transquant_bypass_enable_flag;
+
+ if (x0) {
+ left_tc_offset = s->deblock[ctb - 1].tc_offset;
+ left_beta_offset = s->deblock[ctb - 1].beta_offset;
+ }
+
+ x_end = x0 + ctb_size;
+ if (x_end > s->sps->width)
+ x_end = s->sps->width;
+ y_end = y0 + ctb_size;
+ if (y_end > s->sps->height)
+ y_end = s->sps->height;
+
+ tc_offset = cur_tc_offset;
+ beta_offset = cur_beta_offset;
+
+ // vertical filtering luma
+ for (y = y0; y < y_end; y += 8) {
+ for (x = x0 ? x0 : 8; x < x_end; x += 8) {
+ const int bs0 = s->vertical_bs[(x >> 3) + (y >> 2) * s->bs_width];
+ const int bs1 = s->vertical_bs[(x >> 3) + ((y + 4) >> 2) * s->bs_width];
+ if (bs0 || bs1) {
+ const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1;
+ const int qp1 = (get_qPy(s, x - 1, y + 4) + get_qPy(s, x, y + 4) + 1) >> 1;
+
+ beta[0] = betatable[av_clip(qp0 + (beta_offset >> 1 << 1), 0, MAX_QP)];
+ beta[1] = betatable[av_clip(qp1 + (beta_offset >> 1 << 1), 0, MAX_QP)];
+ tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0;
+ tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0;
+ src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)];
+ if (pcmf) {
+ no_p[0] = get_pcm(s, x - 1, y);
+ no_p[1] = get_pcm(s, x - 1, y + 4);
+ no_q[0] = get_pcm(s, x, y);
+ no_q[1] = get_pcm(s, x, y + 4);
+ s->hevcdsp.hevc_v_loop_filter_luma_c(src,
+ s->frame->linesize[LUMA],
+ beta, tc, no_p, no_q);
+ } else
+ s->hevcdsp.hevc_v_loop_filter_luma(src,
+ s->frame->linesize[LUMA],
+ beta, tc, no_p, no_q);
+ }
+ }
+ }
+
+ // vertical filtering chroma
+ for (chroma = 1; chroma <= 2; chroma++) {
+ for (y = y0; y < y_end; y += 16) {
+ for (x = x0 ? x0 : 16; x < x_end; x += 16) {
+ const int bs0 = s->vertical_bs[(x >> 3) + (y >> 2) * s->bs_width];
+ const int bs1 = s->vertical_bs[(x >> 3) + ((y + 8) >> 2) * s->bs_width];
+ if ((bs0 == 2) || (bs1 == 2)) {
+ const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1;
+ const int qp1 = (get_qPy(s, x - 1, y + 8) + get_qPy(s, x, y + 8) + 1) >> 1;
+
+ c_tc[0] = (bs0 == 2) ? chroma_tc(s, qp0, chroma, tc_offset) : 0;
+ c_tc[1] = (bs1 == 2) ? chroma_tc(s, qp1, chroma, tc_offset) : 0;
+ src = &s->frame->data[chroma][y / 2 * s->frame->linesize[chroma] + ((x / 2) << s->sps->pixel_shift)];
+ if (pcmf) {
+ no_p[0] = get_pcm(s, x - 1, y);
+ no_p[1] = get_pcm(s, x - 1, y + 8);
+ no_q[0] = get_pcm(s, x, y);
+ no_q[1] = get_pcm(s, x, y + 8);
+ s->hevcdsp.hevc_v_loop_filter_chroma_c(src,
+ s->frame->linesize[chroma],
+ c_tc, no_p, no_q);
+ } else
+ s->hevcdsp.hevc_v_loop_filter_chroma(src,
+ s->frame->linesize[chroma],
+ c_tc, no_p, no_q);
+ }
+ }
+ }
+ }
+
+ // horizontal filtering luma
+ if (x_end != s->sps->width)
+ x_end -= 8;
+ for (y = y0 ? y0 : 8; y < y_end; y += 8) {
+ for (x = x0 ? x0 - 8 : 0; x < x_end; x += 8) {
+ const int bs0 = s->horizontal_bs[(x + y * s->bs_width) >> 2];
+ const int bs1 = s->horizontal_bs[(x + 4 + y * s->bs_width) >> 2];
+ if (bs0 || bs1) {
+ const int qp0 = (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1;
+ const int qp1 = (get_qPy(s, x + 4, y - 1) + get_qPy(s, x + 4, y) + 1) >> 1;
+
+ tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset;
+ beta_offset = x >= x0 ? cur_beta_offset : left_beta_offset;
+
+ beta[0] = betatable[av_clip(qp0 + (beta_offset >> 1 << 1), 0, MAX_QP)];
+ beta[1] = betatable[av_clip(qp1 + (beta_offset >> 1 << 1), 0, MAX_QP)];
+ tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0;
+ tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0;
+ src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)];
+ if (pcmf) {
+ no_p[0] = get_pcm(s, x, y - 1);
+ no_p[1] = get_pcm(s, x + 4, y - 1);
+ no_q[0] = get_pcm(s, x, y);
+ no_q[1] = get_pcm(s, x + 4, y);
+ s->hevcdsp.hevc_h_loop_filter_luma_c(src,
+ s->frame->linesize[LUMA],
+ beta, tc, no_p, no_q);
+ } else
+ s->hevcdsp.hevc_h_loop_filter_luma(src,
+ s->frame->linesize[LUMA],
+ beta, tc, no_p, no_q);
+ }
+ }
+ }
+
+ // horizontal filtering chroma
+ for (chroma = 1; chroma <= 2; chroma++) {
+ for (y = y0 ? y0 : 16; y < y_end; y += 16) {
+ for (x = x0 - 8; x < x_end; x += 16) {
+ int bs0, bs1;
+ // to make sure no memory access over boundary when x = -8
+ // TODO: simplify with row based deblocking
+ if (x < 0) {
+ bs0 = 0;
+ bs1 = s->horizontal_bs[(x + 8 + y * s->bs_width) >> 2];
+ } else if (x >= x_end - 8) {
+ bs0 = s->horizontal_bs[(x + y * s->bs_width) >> 2];
+ bs1 = 0;
+ } else {
+ bs0 = s->horizontal_bs[(x + y * s->bs_width) >> 2];
+ bs1 = s->horizontal_bs[(x + 8 + y * s->bs_width) >> 2];
+ }
+
+ if ((bs0 == 2) || (bs1 == 2)) {
+ const int qp0 = bs0 == 2 ? (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1 : 0;
+ const int qp1 = bs1 == 2 ? (get_qPy(s, x + 8, y - 1) + get_qPy(s, x + 8, y) + 1) >> 1 : 0;
+
+ tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset;
+ c_tc[0] = bs0 == 2 ? chroma_tc(s, qp0, chroma, tc_offset) : 0;
+ c_tc[1] = bs1 == 2 ? chroma_tc(s, qp1, chroma, cur_tc_offset) : 0;
+ src = &s->frame->data[chroma][y / 2 * s->frame->linesize[chroma] + ((x / 2) << s->sps->pixel_shift)];
+ if (pcmf) {
+ no_p[0] = get_pcm(s, x, y - 1);
+ no_p[1] = get_pcm(s, x + 8, y - 1);
+ no_q[0] = get_pcm(s, x, y);
+ no_q[1] = get_pcm(s, x + 8, y);
+ s->hevcdsp.hevc_h_loop_filter_chroma_c(src,
+ s->frame->linesize[chroma],
+ c_tc, no_p, no_q);
+ } else
+ s->hevcdsp.hevc_h_loop_filter_chroma(src,
+ s->frame->linesize[chroma],
+ c_tc, no_p, no_q);
+ }
+ }
+ }
+ }
+}
+
+static int boundary_strength(HEVCContext *s, MvField *curr,
+ uint8_t curr_cbf_luma, MvField *neigh,
+ uint8_t neigh_cbf_luma,
+ RefPicList *neigh_refPicList,
+ int tu_border)
+{
+ int mvs = curr->pred_flag[0] + curr->pred_flag[1];
+
+ if (tu_border) {
+ if (curr->is_intra || neigh->is_intra)
+ return 2;
+ if (curr_cbf_luma || neigh_cbf_luma)
+ return 1;
+ }
+
+ if (mvs == neigh->pred_flag[0] + neigh->pred_flag[1]) {
+ if (mvs == 2) {
+ // same L0 and L1
+ if (s->ref->refPicList[0].list[curr->ref_idx[0]] == neigh_refPicList[0].list[neigh->ref_idx[0]] &&
+ s->ref->refPicList[0].list[curr->ref_idx[0]] == s->ref->refPicList[1].list[curr->ref_idx[1]] &&
+ neigh_refPicList[0].list[neigh->ref_idx[0]] == neigh_refPicList[1].list[neigh->ref_idx[1]]) {
+ if ((abs(neigh->mv[0].x - curr->mv[0].x) >= 4 || abs(neigh->mv[0].y - curr->mv[0].y) >= 4 ||
+ abs(neigh->mv[1].x - curr->mv[1].x) >= 4 || abs(neigh->mv[1].y - curr->mv[1].y) >= 4) &&
+ (abs(neigh->mv[1].x - curr->mv[0].x) >= 4 || abs(neigh->mv[1].y - curr->mv[0].y) >= 4 ||
+ abs(neigh->mv[0].x - curr->mv[1].x) >= 4 || abs(neigh->mv[0].y - curr->mv[1].y) >= 4))
+ return 1;
+ else
+ return 0;
+ } else if (neigh_refPicList[0].list[neigh->ref_idx[0]] == s->ref->refPicList[0].list[curr->ref_idx[0]] &&
+ neigh_refPicList[1].list[neigh->ref_idx[1]] == s->ref->refPicList[1].list[curr->ref_idx[1]]) {
+ if (abs(neigh->mv[0].x - curr->mv[0].x) >= 4 || abs(neigh->mv[0].y - curr->mv[0].y) >= 4 ||
+ abs(neigh->mv[1].x - curr->mv[1].x) >= 4 || abs(neigh->mv[1].y - curr->mv[1].y) >= 4)
+ return 1;
+ else
+ return 0;
+ } else if (neigh_refPicList[1].list[neigh->ref_idx[1]] == s->ref->refPicList[0].list[curr->ref_idx[0]] &&
+ neigh_refPicList[0].list[neigh->ref_idx[0]] == s->ref->refPicList[1].list[curr->ref_idx[1]]) {
+ if (abs(neigh->mv[1].x - curr->mv[0].x) >= 4 || abs(neigh->mv[1].y - curr->mv[0].y) >= 4 ||
+ abs(neigh->mv[0].x - curr->mv[1].x) >= 4 || abs(neigh->mv[0].y - curr->mv[1].y) >= 4)
+ return 1;
+ else
+ return 0;
+ } else {
+ return 1;
+ }
+ } else { // 1 MV
+ Mv A, B;
+ int ref_A, ref_B;
+
+ if (curr->pred_flag[0]) {
+ A = curr->mv[0];
+ ref_A = s->ref->refPicList[0].list[curr->ref_idx[0]];
+ } else {
+ A = curr->mv[1];
+ ref_A = s->ref->refPicList[1].list[curr->ref_idx[1]];
+ }
+
+ if (neigh->pred_flag[0]) {
+ B = neigh->mv[0];
+ ref_B = neigh_refPicList[0].list[neigh->ref_idx[0]];
+ } else {
+ B = neigh->mv[1];
+ ref_B = neigh_refPicList[1].list[neigh->ref_idx[1]];
+ }
+
+ if (ref_A == ref_B) {
+ if (abs(A.x - B.x) >= 4 || abs(A.y - B.y) >= 4)
+ return 1;
+ else
+ return 0;
+ } else
+ return 1;
+ }
+ }
+
+ return 1;
+}
+
+void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
+ int log2_trafo_size,
+ int slice_or_tiles_up_boundary,
+ int slice_or_tiles_left_boundary)
+{
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int log2_min_pu_size = s->sps->log2_min_pu_size;
+ int log2_min_tu_size = s->sps->log2_min_tb_size;
+ int min_pu_width = s->sps->min_pu_width;
+ int min_tu_width = s->sps->min_tb_width;
+ int is_intra = tab_mvf[(y0 >> log2_min_pu_size) * min_pu_width +
+ (x0 >> log2_min_pu_size)].is_intra;
+ int i, j, bs;
+
+ if (y0 > 0 && (y0 & 7) == 0) {
+ int yp_pu = (y0 - 1) >> log2_min_pu_size;
+ int yq_pu = y0 >> log2_min_pu_size;
+ int yp_tu = (y0 - 1) >> log2_min_tu_size;
+ int yq_tu = y0 >> log2_min_tu_size;
+
+ for (i = 0; i < (1 << log2_trafo_size); i += 4) {
+ int x_pu = (x0 + i) >> log2_min_pu_size;
+ int x_tu = (x0 + i) >> log2_min_tu_size;
+ MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu];
+ MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu];
+ uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu];
+ uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu];
+ RefPicList *top_refPicList = ff_hevc_get_ref_list(s, s->ref,
+ x0 + i, y0 - 1);
+
+ bs = boundary_strength(s, curr, curr_cbf_luma,
+ top, top_cbf_luma, top_refPicList, 1);
+ if (!s->sh.slice_loop_filter_across_slices_enabled_flag &&
+ (slice_or_tiles_up_boundary & 1) &&
+ (y0 % (1 << s->sps->log2_ctb_size)) == 0)
+ bs = 0;
+ else if (!s->pps->loop_filter_across_tiles_enabled_flag &&
+ (slice_or_tiles_up_boundary & 2) &&
+ (y0 % (1 << s->sps->log2_ctb_size)) == 0)
+ bs = 0;
+ if (y0 == 0 || s->sh.disable_deblocking_filter_flag == 1)
+ bs = 0;
+ if (bs)
+ s->horizontal_bs[((x0 + i) + y0 * s->bs_width) >> 2] = bs;
+ }
+ }
+
+ // bs for TU internal horizontal PU boundaries
+ if (log2_trafo_size > s->sps->log2_min_pu_size && !is_intra)
+ for (j = 8; j < (1 << log2_trafo_size); j += 8) {
+ int yp_pu = (y0 + j - 1) >> log2_min_pu_size;
+ int yq_pu = (y0 + j) >> log2_min_pu_size;
+ int yp_tu = (y0 + j - 1) >> log2_min_tu_size;
+ int yq_tu = (y0 + j) >> log2_min_tu_size;
+
+ for (i = 0; i < (1 << log2_trafo_size); i += 4) {
+ int x_pu = (x0 + i) >> log2_min_pu_size;
+ int x_tu = (x0 + i) >> log2_min_tu_size;
+ MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu];
+ MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu];
+ uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu];
+ uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu];
+ RefPicList *top_refPicList = ff_hevc_get_ref_list(s, s->ref,
+ x0 + i,
+ y0 + j - 1);
+
+ bs = boundary_strength(s, curr, curr_cbf_luma,
+ top, top_cbf_luma, top_refPicList, 0);
+ if (s->sh.disable_deblocking_filter_flag == 1)
+ bs = 0;
+ if (bs)
+ s->horizontal_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs;
+ }
+ }
+
+ // bs for vertical TU boundaries
+ if (x0 > 0 && (x0 & 7) == 0) {
+ int xp_pu = (x0 - 1) >> log2_min_pu_size;
+ int xq_pu = x0 >> log2_min_pu_size;
+ int xp_tu = (x0 - 1) >> log2_min_tu_size;
+ int xq_tu = x0 >> log2_min_tu_size;
+
+ for (i = 0; i < (1 << log2_trafo_size); i += 4) {
+ int y_pu = (y0 + i) >> log2_min_pu_size;
+ int y_tu = (y0 + i) >> log2_min_tu_size;
+ MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu];
+ MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu];
+
+ uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu];
+ uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu];
+ RefPicList *left_refPicList = ff_hevc_get_ref_list(s, s->ref,
+ x0 - 1, y0 + i);
+
+ bs = boundary_strength(s, curr, curr_cbf_luma,
+ left, left_cbf_luma, left_refPicList, 1);
+ if (!s->sh.slice_loop_filter_across_slices_enabled_flag &&
+ (slice_or_tiles_left_boundary & 1) &&
+ (x0 % (1 << s->sps->log2_ctb_size)) == 0)
+ bs = 0;
+ else if (!s->pps->loop_filter_across_tiles_enabled_flag &&
+ (slice_or_tiles_left_boundary & 2) &&
+ (x0 % (1 << s->sps->log2_ctb_size)) == 0)
+ bs = 0;
+ if (x0 == 0 || s->sh.disable_deblocking_filter_flag == 1)
+ bs = 0;
+ if (bs)
+ s->vertical_bs[(x0 >> 3) + ((y0 + i) >> 2) * s->bs_width] = bs;
+ }
+ }
+
+ // bs for TU internal vertical PU boundaries
+ if (log2_trafo_size > log2_min_pu_size && !is_intra)
+ for (j = 0; j < (1 << log2_trafo_size); j += 4) {
+ int y_pu = (y0 + j) >> log2_min_pu_size;
+ int y_tu = (y0 + j) >> log2_min_tu_size;
+
+ for (i = 8; i < (1 << log2_trafo_size); i += 8) {
+ int xp_pu = (x0 + i - 1) >> log2_min_pu_size;
+ int xq_pu = (x0 + i) >> log2_min_pu_size;
+ int xp_tu = (x0 + i - 1) >> log2_min_tu_size;
+ int xq_tu = (x0 + i) >> log2_min_tu_size;
+ MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu];
+ MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu];
+ uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu];
+ uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu];
+ RefPicList *left_refPicList = ff_hevc_get_ref_list(s, s->ref,
+ x0 + i - 1,
+ y0 + j);
+
+ bs = boundary_strength(s, curr, curr_cbf_luma,
+ left, left_cbf_luma, left_refPicList, 0);
+ if (s->sh.disable_deblocking_filter_flag == 1)
+ bs = 0;
+ if (bs)
+ s->vertical_bs[((x0 + i) >> 3) + ((y0 + j) >> 2) * s->bs_width] = bs;
+ }
+ }
+}
+
+#undef LUMA
+#undef CB
+#undef CR
+
+void ff_hevc_hls_filter(HEVCContext *s, int x, int y)
+{
+ deblocking_filter_CTB(s, x, y);
+ if (s->sps->sao_enabled)
+ sao_filter_CTB(s, x, y);
+}
+
+void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size)
+{
+ if (y_ctb && x_ctb)
+ ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb - ctb_size);
+ if (y_ctb && x_ctb >= s->sps->width - ctb_size) {
+ ff_hevc_hls_filter(s, x_ctb, y_ctb - ctb_size);
+ ff_thread_report_progress(&s->ref->tf, y_ctb - ctb_size, 0);
+ }
+ if (x_ctb && y_ctb >= s->sps->height - ctb_size)
+ ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb);
+}
diff --git a/libavcodec/hevc_mvs.c b/libavcodec/hevc_mvs.c
new file mode 100644
index 0000000..49d5ff2
--- /dev/null
+++ b/libavcodec/hevc_mvs.c
@@ -0,0 +1,816 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2013 Anand Meher Kotra
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "hevc.h"
+
+static const uint8_t l0_l1_cand_idx[12][2] = {
+ { 0, 1, },
+ { 1, 0, },
+ { 0, 2, },
+ { 2, 0, },
+ { 1, 2, },
+ { 2, 1, },
+ { 0, 3, },
+ { 3, 0, },
+ { 1, 3, },
+ { 3, 1, },
+ { 2, 3, },
+ { 3, 2, },
+};
+
+void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
+ int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
+
+ lc->na.cand_up = (lc->ctb_up_flag || y0b);
+ lc->na.cand_left = (lc->ctb_left_flag || x0b);
+ lc->na.cand_up_left = (!x0b && !y0b) ? lc->ctb_up_left_flag : lc->na.cand_left && lc->na.cand_up;
+ lc->na.cand_up_right_sap =
+ ((x0b + nPbW) == (1 << s->sps->log2_ctb_size)) ?
+ lc->ctb_up_right_flag && !y0b : lc->na.cand_up;
+ lc->na.cand_up_right =
+ ((x0b + nPbW) == (1 << s->sps->log2_ctb_size) ?
+ lc->ctb_up_right_flag && !y0b : lc->na.cand_up )
+ && (x0 + nPbW) < lc->end_of_tiles_x;
+ lc->na.cand_bottom_left = ((y0 + nPbH) >= lc->end_of_tiles_y) ? 0 : lc->na.cand_left;
+}
+
+/*
+ * 6.4.1 Derivation process for z-scan order block availability
+ */
+static int z_scan_block_avail(HEVCContext *s, int xCurr, int yCurr,
+ int xN, int yN)
+{
+#define MIN_TB_ADDR_ZS(x, y) \
+ s->pps->min_tb_addr_zs[(y) * s->sps->min_tb_width + (x)]
+ int Curr = MIN_TB_ADDR_ZS(xCurr >> s->sps->log2_min_tb_size,
+ yCurr >> s->sps->log2_min_tb_size);
+ int N;
+
+ if (xN < 0 || yN < 0 ||
+ xN >= s->sps->width ||
+ yN >= s->sps->height)
+ return 0;
+
+ N = MIN_TB_ADDR_ZS(xN >> s->sps->log2_min_tb_size,
+ yN >> s->sps->log2_min_tb_size);
+
+ return N <= Curr;
+}
+
+static int same_prediction_block(HEVCLocalContext *lc, int log2_cb_size,
+ int x0, int y0, int nPbW, int nPbH,
+ int xA1, int yA1, int partIdx)
+{
+ return !(nPbW << 1 == 1 << log2_cb_size &&
+ nPbH << 1 == 1 << log2_cb_size && partIdx == 1 &&
+ lc->cu.x + nPbW > xA1 &&
+ lc->cu.y + nPbH <= yA1);
+}
+
+/*
+ * 6.4.2 Derivation process for prediction block availability
+ */
+static int check_prediction_block_available(HEVCContext *s, int log2_cb_size,
+ int x0, int y0, int nPbW, int nPbH,
+ int xA1, int yA1, int partIdx)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+
+ if (lc->cu.x < xA1 && lc->cu.y < yA1 &&
+ (lc->cu.x + (1 << log2_cb_size)) > xA1 &&
+ (lc->cu.y + (1 << log2_cb_size)) > yA1)
+ return same_prediction_block(lc, log2_cb_size, x0, y0,
+ nPbW, nPbH, xA1, yA1, partIdx);
+ else
+ return z_scan_block_avail(s, x0, y0, xA1, yA1);
+}
+
+//check if the two luma locations belong to the same mostion estimation region
+static int isDiffMER(HEVCContext *s, int xN, int yN, int xP, int yP)
+{
+ uint8_t plevel = s->pps->log2_parallel_merge_level;
+
+ return xN >> plevel == xP >> plevel &&
+ yN >> plevel == yP >> plevel;
+}
+
+#define MATCH(x) (A.x == B.x)
+
+// check if the mv's and refidx are the same between A and B
+static int compareMVrefidx(struct MvField A, struct MvField B)
+{
+ if (A.pred_flag[0] && A.pred_flag[1] && B.pred_flag[0] && B.pred_flag[1])
+ return MATCH(ref_idx[0]) && MATCH(mv[0].x) && MATCH(mv[0].y) &&
+ MATCH(ref_idx[1]) && MATCH(mv[1].x) && MATCH(mv[1].y);
+
+ if (A.pred_flag[0] && !A.pred_flag[1] && B.pred_flag[0] && !B.pred_flag[1])
+ return MATCH(ref_idx[0]) && MATCH(mv[0].x) && MATCH(mv[0].y);
+
+ if (!A.pred_flag[0] && A.pred_flag[1] && !B.pred_flag[0] && B.pred_flag[1])
+ return MATCH(ref_idx[1]) && MATCH(mv[1].x) && MATCH(mv[1].y);
+
+ return 0;
+}
+
+static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb)
+{
+ int tx, scale_factor;
+
+ td = av_clip_int8_c(td);
+ tb = av_clip_int8_c(tb);
+ tx = (0x4000 + abs(td / 2)) / td;
+ scale_factor = av_clip_c((tb * tx + 32) >> 6, -4096, 4095);
+ dst->x = av_clip_int16_c((scale_factor * src->x + 127 +
+ (scale_factor * src->x < 0)) >> 8);
+ dst->y = av_clip_int16_c((scale_factor * src->y + 127 +
+ (scale_factor * src->y < 0)) >> 8);
+}
+
+static int check_mvset(Mv *mvLXCol, Mv *mvCol,
+ int colPic, int poc,
+ RefPicList *refPicList, int X, int refIdxLx,
+ RefPicList *refPicList_col, int listCol, int refidxCol)
+{
+ int cur_lt = refPicList[X].isLongTerm[refIdxLx];
+ int col_lt = refPicList_col[listCol].isLongTerm[refidxCol];
+ int col_poc_diff, cur_poc_diff;
+
+ if (cur_lt != col_lt) {
+ mvLXCol->x = 0;
+ mvLXCol->y = 0;
+ return 0;
+ }
+
+ col_poc_diff = colPic - refPicList_col[listCol].list[refidxCol];
+ cur_poc_diff = poc - refPicList[X].list[refIdxLx];
+
+ if (!col_poc_diff)
+ col_poc_diff = 1; // error resilience
+
+ if (cur_lt || col_poc_diff == cur_poc_diff) {
+ mvLXCol->x = mvCol->x;
+ mvLXCol->y = mvCol->y;
+ } else {
+ mv_scale(mvLXCol, mvCol, col_poc_diff, cur_poc_diff);
+ }
+ return 1;
+}
+
+#define CHECK_MVSET(l) \
+ check_mvset(mvLXCol, temp_col.mv + l, \
+ colPic, s->poc, \
+ refPicList, X, refIdxLx, \
+ refPicList_col, L ## l, temp_col.ref_idx[l])
+
+// derive the motion vectors section 8.5.3.1.8
+static int derive_temporal_colocated_mvs(HEVCContext *s, MvField temp_col,
+ int refIdxLx, Mv *mvLXCol, int X,
+ int colPic, RefPicList *refPicList_col)
+{
+ RefPicList *refPicList = s->ref->refPicList;
+
+ if (temp_col.is_intra) {
+ mvLXCol->x = 0;
+ mvLXCol->y = 0;
+ return 0;
+ }
+
+ if (temp_col.pred_flag[0] == 0)
+ return CHECK_MVSET(1);
+ else if (temp_col.pred_flag[0] == 1 && temp_col.pred_flag[1] == 0)
+ return CHECK_MVSET(0);
+ else if (temp_col.pred_flag[0] == 1 && temp_col.pred_flag[1] == 1) {
+ int check_diffpicount = 0;
+ int i = 0;
+ for (i = 0; i < refPicList[0].nb_refs; i++) {
+ if (refPicList[0].list[i] > s->poc)
+ check_diffpicount++;
+ }
+ for (i = 0; i < refPicList[1].nb_refs; i++) {
+ if (refPicList[1].list[i] > s->poc)
+ check_diffpicount++;
+ }
+ if (check_diffpicount == 0 && X == 0)
+ return CHECK_MVSET(0);
+ else if (check_diffpicount == 0 && X == 1)
+ return CHECK_MVSET(1);
+ else {
+ if (s->sh.collocated_list == L1)
+ return CHECK_MVSET(0);
+ else
+ return CHECK_MVSET(1);
+ }
+ }
+
+ return 0;
+}
+
+#define TAB_MVF(x, y) \
+ tab_mvf[(y) * min_pu_width + x]
+
+#define TAB_MVF_PU(v) \
+ TAB_MVF(x ## v ## _pu, y ## v ## _pu)
+
+#define DERIVE_TEMPORAL_COLOCATED_MVS \
+ derive_temporal_colocated_mvs(s, temp_col, \
+ refIdxLx, mvLXCol, X, colPic, \
+ ff_hevc_get_ref_list(s, ref, x, y))
+
+/*
+ * 8.5.3.1.7 temporal luma motion vector prediction
+ */
+static int temporal_luma_motion_vector(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH, int refIdxLx,
+ Mv *mvLXCol, int X)
+{
+ MvField *tab_mvf;
+ MvField temp_col;
+ int x, y, x_pu, y_pu;
+ int min_pu_width = s->sps->min_pu_width;
+ int availableFlagLXCol = 0;
+ int colPic;
+
+ HEVCFrame *ref = s->ref->collocated_ref;
+
+ if (!ref)
+ return 0;
+
+ tab_mvf = ref->tab_mvf;
+ colPic = ref->poc;
+
+ //bottom right collocated motion vector
+ x = x0 + nPbW;
+ y = y0 + nPbH;
+
+ ff_thread_await_progress(&ref->tf, y, 0);
+ if (tab_mvf &&
+ (y0 >> s->sps->log2_ctb_size) == (y >> s->sps->log2_ctb_size) &&
+ y < s->sps->height &&
+ x < s->sps->width) {
+ x = ((x >> 4) << 4);
+ y = ((y >> 4) << 4);
+ x_pu = x >> s->sps->log2_min_pu_size;
+ y_pu = y >> s->sps->log2_min_pu_size;
+ temp_col = TAB_MVF(x_pu, y_pu);
+ availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS;
+ }
+
+ // derive center collocated motion vector
+ if (tab_mvf && !availableFlagLXCol) {
+ x = x0 + (nPbW >> 1);
+ y = y0 + (nPbH >> 1);
+ x = ((x >> 4) << 4);
+ y = ((y >> 4) << 4);
+ x_pu = x >> s->sps->log2_min_pu_size;
+ y_pu = y >> s->sps->log2_min_pu_size;
+ temp_col = TAB_MVF(x_pu, y_pu);
+ availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS;
+ }
+ return availableFlagLXCol;
+}
+
+#define AVAILABLE(cand, v) \
+ (cand && !TAB_MVF_PU(v).is_intra)
+
+#define PRED_BLOCK_AVAILABLE(v) \
+ check_prediction_block_available(s, log2_cb_size, \
+ x0, y0, nPbW, nPbH, \
+ x ## v, y ## v, part_idx)
+
+#define COMPARE_MV_REFIDX(a, b) \
+ compareMVrefidx(TAB_MVF_PU(a), TAB_MVF_PU(b))
+
+/*
+ * 8.5.3.1.2 Derivation process for spatial merging candidates
+ */
+static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
+ int nPbW, int nPbH,
+ int log2_cb_size,
+ int singleMCLFlag, int part_idx,
+ struct MvField mergecandlist[])
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ RefPicList *refPicList = s->ref->refPicList;
+ MvField *tab_mvf = s->ref->tab_mvf;
+
+ const int min_pu_width = s->sps->min_pu_width;
+
+ const int cand_bottom_left = lc->na.cand_bottom_left;
+ const int cand_left = lc->na.cand_left;
+ const int cand_up_left = lc->na.cand_up_left;
+ const int cand_up = lc->na.cand_up;
+ const int cand_up_right = lc->na.cand_up_right_sap;
+
+ const int xA1 = x0 - 1;
+ const int yA1 = y0 + nPbH - 1;
+ const int xA1_pu = xA1 >> s->sps->log2_min_pu_size;
+ const int yA1_pu = yA1 >> s->sps->log2_min_pu_size;
+
+ const int xB1 = x0 + nPbW - 1;
+ const int yB1 = y0 - 1;
+ const int xB1_pu = xB1 >> s->sps->log2_min_pu_size;
+ const int yB1_pu = yB1 >> s->sps->log2_min_pu_size;
+
+ const int xB0 = x0 + nPbW;
+ const int yB0 = y0 - 1;
+ const int xB0_pu = xB0 >> s->sps->log2_min_pu_size;
+ const int yB0_pu = yB0 >> s->sps->log2_min_pu_size;
+
+ const int xA0 = x0 - 1;
+ const int yA0 = y0 + nPbH;
+ const int xA0_pu = xA0 >> s->sps->log2_min_pu_size;
+ const int yA0_pu = yA0 >> s->sps->log2_min_pu_size;
+
+ const int xB2 = x0 - 1;
+ const int yB2 = y0 - 1;
+ const int xB2_pu = xB2 >> s->sps->log2_min_pu_size;
+ const int yB2_pu = yB2 >> s->sps->log2_min_pu_size;
+
+ const int nb_refs = (s->sh.slice_type == P_SLICE) ?
+ s->sh.nb_refs[0] : FFMIN(s->sh.nb_refs[0], s->sh.nb_refs[1]);
+ int check_MER = 1;
+ int check_MER_1 = 1;
+
+ int zero_idx = 0;
+
+ int nb_merge_cand = 0;
+ int nb_orig_merge_cand = 0;
+
+ int is_available_a0;
+ int is_available_a1;
+ int is_available_b0;
+ int is_available_b1;
+ int is_available_b2;
+ int check_B0;
+ int check_A0;
+
+ //first left spatial merge candidate
+ is_available_a1 = AVAILABLE(cand_left, A1);
+
+ if (!singleMCLFlag && part_idx == 1 &&
+ (lc->cu.part_mode == PART_Nx2N ||
+ lc->cu.part_mode == PART_nLx2N ||
+ lc->cu.part_mode == PART_nRx2N) ||
+ isDiffMER(s, xA1, yA1, x0, y0)) {
+ is_available_a1 = 0;
+ }
+
+ if (is_available_a1)
+ mergecandlist[nb_merge_cand++] = TAB_MVF_PU(A1);
+
+ // above spatial merge candidate
+ is_available_b1 = AVAILABLE(cand_up, B1);
+
+ if (!singleMCLFlag && part_idx == 1 &&
+ (lc->cu.part_mode == PART_2NxN ||
+ lc->cu.part_mode == PART_2NxnU ||
+ lc->cu.part_mode == PART_2NxnD) ||
+ isDiffMER(s, xB1, yB1, x0, y0)) {
+ is_available_b1 = 0;
+ }
+
+ if (is_available_a1 && is_available_b1)
+ check_MER = !COMPARE_MV_REFIDX(B1, A1);
+
+ if (is_available_b1 && check_MER)
+ mergecandlist[nb_merge_cand++] = TAB_MVF_PU(B1);
+
+ // above right spatial merge candidate
+ check_MER = 1;
+ check_B0 = PRED_BLOCK_AVAILABLE(B0);
+
+ is_available_b0 = check_B0 && AVAILABLE(cand_up_right, B0);
+
+ if (isDiffMER(s, xB0, yB0, x0, y0))
+ is_available_b0 = 0;
+
+ if (is_available_b1 && is_available_b0)
+ check_MER = !COMPARE_MV_REFIDX(B0, B1);
+
+ if (is_available_b0 && check_MER)
+ mergecandlist[nb_merge_cand++] = TAB_MVF_PU(B0);
+
+ // left bottom spatial merge candidate
+ check_MER = 1;
+ check_A0 = PRED_BLOCK_AVAILABLE(A0);
+
+ is_available_a0 = check_A0 && AVAILABLE(cand_bottom_left, A0);
+
+ if (isDiffMER(s, xA0, yA0, x0, y0))
+ is_available_a0 = 0;
+
+ if (is_available_a1 && is_available_a0)
+ check_MER = !COMPARE_MV_REFIDX(A0, A1);
+
+ if (is_available_a0 && check_MER)
+ mergecandlist[nb_merge_cand++] = TAB_MVF_PU(A0);
+
+ // above left spatial merge candidate
+ check_MER = 1;
+
+ is_available_b2 = AVAILABLE(cand_up_left, B2);
+
+ if (isDiffMER(s, xB2, yB2, x0, y0))
+ is_available_b2 = 0;
+
+ if (is_available_a1 && is_available_b2)
+ check_MER = !COMPARE_MV_REFIDX(B2, A1);
+
+ if (is_available_b1 && is_available_b2)
+ check_MER_1 = !COMPARE_MV_REFIDX(B2, B1);
+
+ if (is_available_b2 && check_MER && check_MER_1 && nb_merge_cand != 4)
+ mergecandlist[nb_merge_cand++] = TAB_MVF_PU(B2);
+
+ // temporal motion vector candidate
+ if (s->sh.slice_temporal_mvp_enabled_flag &&
+ nb_merge_cand < s->sh.max_num_merge_cand) {
+ Mv mv_l0_col, mv_l1_col;
+ int available_l0 = temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
+ 0, &mv_l0_col, 0);
+ int available_l1 = (s->sh.slice_type == B_SLICE) ?
+ temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
+ 0, &mv_l1_col, 1) : 0;
+
+ if (available_l0 || available_l1) {
+ mergecandlist[nb_merge_cand].is_intra = 0;
+ mergecandlist[nb_merge_cand].pred_flag[0] = available_l0;
+ mergecandlist[nb_merge_cand].pred_flag[1] = available_l1;
+ if (available_l0) {
+ mergecandlist[nb_merge_cand].mv[0] = mv_l0_col;
+ mergecandlist[nb_merge_cand].ref_idx[0] = 0;
+ }
+ if (available_l1) {
+ mergecandlist[nb_merge_cand].mv[1] = mv_l1_col;
+ mergecandlist[nb_merge_cand].ref_idx[1] = 0;
+ }
+ nb_merge_cand++;
+ }
+ }
+
+ nb_orig_merge_cand = nb_merge_cand;
+
+ // combined bi-predictive merge candidates (applies for B slices)
+ if (s->sh.slice_type == B_SLICE && nb_orig_merge_cand > 1 &&
+ nb_orig_merge_cand < s->sh.max_num_merge_cand) {
+ int comb_idx;
+
+ for (comb_idx = 0; nb_merge_cand < s->sh.max_num_merge_cand &&
+ comb_idx < nb_orig_merge_cand * (nb_orig_merge_cand - 1); comb_idx++) {
+ int l0_cand_idx = l0_l1_cand_idx[comb_idx][0];
+ int l1_cand_idx = l0_l1_cand_idx[comb_idx][1];
+ MvField l0_cand = mergecandlist[l0_cand_idx];
+ MvField l1_cand = mergecandlist[l1_cand_idx];
+
+ if (l0_cand.pred_flag[0] && l1_cand.pred_flag[1] &&
+ (refPicList[0].list[l0_cand.ref_idx[0]] !=
+ refPicList[1].list[l1_cand.ref_idx[1]] ||
+ l0_cand.mv[0].x != l1_cand.mv[1].x ||
+ l0_cand.mv[0].y != l1_cand.mv[1].y)) {
+ mergecandlist[nb_merge_cand].ref_idx[0] = l0_cand.ref_idx[0];
+ mergecandlist[nb_merge_cand].ref_idx[1] = l1_cand.ref_idx[1];
+ mergecandlist[nb_merge_cand].pred_flag[0] = 1;
+ mergecandlist[nb_merge_cand].pred_flag[1] = 1;
+ mergecandlist[nb_merge_cand].mv[0].x = l0_cand.mv[0].x;
+ mergecandlist[nb_merge_cand].mv[0].y = l0_cand.mv[0].y;
+ mergecandlist[nb_merge_cand].mv[1].x = l1_cand.mv[1].x;
+ mergecandlist[nb_merge_cand].mv[1].y = l1_cand.mv[1].y;
+ mergecandlist[nb_merge_cand].is_intra = 0;
+ nb_merge_cand++;
+ }
+ }
+ }
+
+ // append Zero motion vector candidates
+ while (nb_merge_cand < s->sh.max_num_merge_cand) {
+ mergecandlist[nb_merge_cand].pred_flag[0] = 1;
+ mergecandlist[nb_merge_cand].pred_flag[1] = s->sh.slice_type == B_SLICE;
+ mergecandlist[nb_merge_cand].mv[0].x = 0;
+ mergecandlist[nb_merge_cand].mv[0].y = 0;
+ mergecandlist[nb_merge_cand].mv[1].x = 0;
+ mergecandlist[nb_merge_cand].mv[1].y = 0;
+ mergecandlist[nb_merge_cand].is_intra = 0;
+ mergecandlist[nb_merge_cand].ref_idx[0] = zero_idx < nb_refs ? zero_idx : 0;
+ mergecandlist[nb_merge_cand].ref_idx[1] = zero_idx < nb_refs ? zero_idx : 0;
+
+ nb_merge_cand++;
+ zero_idx++;
+ }
+}
+
+/*
+ * 8.5.3.1.1 Derivation process of luma Mvs for merge mode
+ */
+void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0, int nPbW,
+ int nPbH, int log2_cb_size, int part_idx,
+ int merge_idx, MvField *mv)
+{
+ int singleMCLFlag = 0;
+ int nCS = 1 << log2_cb_size;
+ struct MvField mergecand_list[MRG_MAX_NUM_CANDS] = { { { { 0 } } } };
+ int nPbW2 = nPbW;
+ int nPbH2 = nPbH;
+ HEVCLocalContext *lc = &s->HEVClc;
+
+ if (s->pps->log2_parallel_merge_level > 2 && nCS == 8) {
+ singleMCLFlag = 1;
+ x0 = lc->cu.x;
+ y0 = lc->cu.y;
+ nPbW = nCS;
+ nPbH = nCS;
+ part_idx = 0;
+ }
+
+ ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
+ derive_spatial_merge_candidates(s, x0, y0, nPbW, nPbH, log2_cb_size,
+ singleMCLFlag, part_idx, mergecand_list);
+
+ if (mergecand_list[merge_idx].pred_flag[0] == 1 &&
+ mergecand_list[merge_idx].pred_flag[1] == 1 &&
+ (nPbW2 + nPbH2) == 12) {
+ mergecand_list[merge_idx].ref_idx[1] = -1;
+ mergecand_list[merge_idx].pred_flag[1] = 0;
+ }
+
+ *mv = mergecand_list[merge_idx];
+}
+
+static av_always_inline void dist_scale(HEVCContext *s, Mv *mv,
+ int min_pu_width, int x, int y,
+ int elist, int ref_idx_curr, int ref_idx)
+{
+ RefPicList *refPicList = s->ref->refPicList;
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int ref_pic_elist = refPicList[elist].list[TAB_MVF(x, y).ref_idx[elist]];
+ int ref_pic_curr = refPicList[ref_idx_curr].list[ref_idx];
+
+ if (ref_pic_elist != ref_pic_curr)
+ mv_scale(mv, mv, s->poc - ref_pic_elist, s->poc - ref_pic_curr);
+}
+
+static int mv_mp_mode_mx(HEVCContext *s, int x, int y, int pred_flag_index,
+ Mv *mv, int ref_idx_curr, int ref_idx)
+{
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int min_pu_width = s->sps->min_pu_width;
+
+ RefPicList *refPicList = s->ref->refPicList;
+
+ if (TAB_MVF(x, y).pred_flag[pred_flag_index] == 1 &&
+ refPicList[pred_flag_index].list[TAB_MVF(x, y).ref_idx[pred_flag_index]] == refPicList[ref_idx_curr].list[ref_idx]) {
+ *mv = TAB_MVF(x, y).mv[pred_flag_index];
+ return 1;
+ }
+ return 0;
+}
+
+static int mv_mp_mode_mx_lt(HEVCContext *s, int x, int y, int pred_flag_index,
+ Mv *mv, int ref_idx_curr, int ref_idx)
+{
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int min_pu_width = s->sps->min_pu_width;
+
+ RefPicList *refPicList = s->ref->refPicList;
+ int currIsLongTerm = refPicList[ref_idx_curr].isLongTerm[ref_idx];
+
+ int colIsLongTerm =
+ refPicList[pred_flag_index].isLongTerm[(TAB_MVF(x, y).ref_idx[pred_flag_index])];
+
+ if (TAB_MVF(x, y).pred_flag[pred_flag_index] &&
+ colIsLongTerm == currIsLongTerm) {
+ *mv = TAB_MVF(x, y).mv[pred_flag_index];
+ if (!currIsLongTerm)
+ dist_scale(s, mv, min_pu_width, x, y,
+ pred_flag_index, ref_idx_curr, ref_idx);
+ return 1;
+ }
+ return 0;
+}
+
+#define MP_MX(v, pred, mx) \
+ mv_mp_mode_mx(s, x ## v ## _pu, y ## v ## _pu, pred, \
+ &mx, ref_idx_curr, ref_idx)
+
+#define MP_MX_LT(v, pred, mx) \
+ mv_mp_mode_mx_lt(s, x ## v ## _pu, y ## v ## _pu, pred, \
+ &mx, ref_idx_curr, ref_idx)
+
+void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0, int nPbW,
+ int nPbH, int log2_cb_size, int part_idx,
+ int merge_idx, MvField *mv,
+ int mvp_lx_flag, int LX)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ MvField *tab_mvf = s->ref->tab_mvf;
+ int isScaledFlag_L0 = 0;
+ int availableFlagLXA0 = 0;
+ int availableFlagLXB0 = 0;
+ int numMVPCandLX = 0;
+ int min_pu_width = s->sps->min_pu_width;
+
+ int xA0, yA0;
+ int xA0_pu, yA0_pu;
+ int is_available_a0;
+
+ int xA1, yA1;
+ int xA1_pu, yA1_pu;
+ int is_available_a1;
+
+ int xB0, yB0;
+ int xB0_pu, yB0_pu;
+ int is_available_b0;
+
+ int xB1, yB1;
+ int xB1_pu = 0, yB1_pu = 0;
+ int is_available_b1 = 0;
+
+ int xB2, yB2;
+ int xB2_pu = 0, yB2_pu = 0;
+ int is_available_b2 = 0;
+ Mv mvpcand_list[2] = { { 0 } };
+ Mv mxA = { 0 };
+ Mv mxB = { 0 };
+ int ref_idx_curr = 0;
+ int ref_idx = 0;
+ int pred_flag_index_l0;
+ int pred_flag_index_l1;
+ int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
+ int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
+
+ int cand_up = (lc->ctb_up_flag || y0b);
+ int cand_left = (lc->ctb_left_flag || x0b);
+ int cand_up_left =
+ (!x0b && !y0b) ? lc->ctb_up_left_flag : cand_left && cand_up;
+ int cand_up_right =
+ (x0b + nPbW == (1 << s->sps->log2_ctb_size) ||
+ x0 + nPbW >= lc->end_of_tiles_x) ? lc->ctb_up_right_flag && !y0b
+ : cand_up;
+ int cand_bottom_left = (y0 + nPbH >= lc->end_of_tiles_y) ? 0 : cand_left;
+
+ ref_idx_curr = LX;
+ ref_idx = mv->ref_idx[LX];
+ pred_flag_index_l0 = LX;
+ pred_flag_index_l1 = !LX;
+
+ // left bottom spatial candidate
+ xA0 = x0 - 1;
+ yA0 = y0 + nPbH;
+ xA0_pu = xA0 >> s->sps->log2_min_pu_size;
+ yA0_pu = yA0 >> s->sps->log2_min_pu_size;
+
+ is_available_a0 = PRED_BLOCK_AVAILABLE(A0) && AVAILABLE(cand_bottom_left, A0);
+
+ //left spatial merge candidate
+ xA1 = x0 - 1;
+ yA1 = y0 + nPbH - 1;
+ xA1_pu = xA1 >> s->sps->log2_min_pu_size;
+ yA1_pu = yA1 >> s->sps->log2_min_pu_size;
+
+ is_available_a1 = AVAILABLE(cand_left, A1);
+ if (is_available_a0 || is_available_a1)
+ isScaledFlag_L0 = 1;
+
+ if (is_available_a0) {
+ availableFlagLXA0 = MP_MX(A0, pred_flag_index_l0, mxA);
+ if (!availableFlagLXA0)
+ availableFlagLXA0 = MP_MX(A0, pred_flag_index_l1, mxA);
+ }
+
+ if (is_available_a1 && !availableFlagLXA0) {
+ availableFlagLXA0 = MP_MX(A1, pred_flag_index_l0, mxA);
+ if (!availableFlagLXA0)
+ availableFlagLXA0 = MP_MX(A1, pred_flag_index_l1, mxA);
+ }
+
+ if (is_available_a0 && !availableFlagLXA0) {
+ availableFlagLXA0 = MP_MX_LT(A0, pred_flag_index_l0, mxA);
+ if (!availableFlagLXA0)
+ availableFlagLXA0 = MP_MX_LT(A0, pred_flag_index_l1, mxA);
+ }
+
+ if (is_available_a1 && !availableFlagLXA0) {
+ availableFlagLXA0 = MP_MX_LT(A1, pred_flag_index_l0, mxA);
+ if (!availableFlagLXA0)
+ availableFlagLXA0 = MP_MX_LT(A1, pred_flag_index_l1, mxA);
+ }
+
+ // B candidates
+ // above right spatial merge candidate
+ xB0 = x0 + nPbW;
+ yB0 = y0 - 1;
+ xB0_pu = xB0 >> s->sps->log2_min_pu_size;
+ yB0_pu = yB0 >> s->sps->log2_min_pu_size;
+
+ is_available_b0 = PRED_BLOCK_AVAILABLE(B0) && AVAILABLE(cand_up_right, B0);
+
+ if (is_available_b0) {
+ availableFlagLXB0 = MP_MX(B0, pred_flag_index_l0, mxB);
+ if (!availableFlagLXB0)
+ availableFlagLXB0 = MP_MX(B0, pred_flag_index_l1, mxB);
+ }
+
+ if (!availableFlagLXB0) {
+ // above spatial merge candidate
+ xB1 = x0 + nPbW - 1;
+ yB1 = y0 - 1;
+ xB1_pu = xB1 >> s->sps->log2_min_pu_size;
+ yB1_pu = yB1 >> s->sps->log2_min_pu_size;
+
+ is_available_b1 = AVAILABLE(cand_up, B1);
+
+ if (is_available_b1) {
+ availableFlagLXB0 = MP_MX(B1, pred_flag_index_l0, mxB);
+ if (!availableFlagLXB0)
+ availableFlagLXB0 = MP_MX(B1, pred_flag_index_l1, mxB);
+ }
+ }
+
+ if (!availableFlagLXB0) {
+ // above left spatial merge candidate
+ xB2 = x0 - 1;
+ yB2 = y0 - 1;
+ xB2_pu = xB2 >> s->sps->log2_min_pu_size;
+ yB2_pu = yB2 >> s->sps->log2_min_pu_size;
+ is_available_b2 = AVAILABLE(cand_up_left, B2);
+
+ if (is_available_b2) {
+ availableFlagLXB0 = MP_MX(B2, pred_flag_index_l0, mxB);
+ if (!availableFlagLXB0)
+ availableFlagLXB0 = MP_MX(B2, pred_flag_index_l1, mxB);
+ }
+ }
+
+ if (isScaledFlag_L0 == 0) {
+ if (availableFlagLXB0) {
+ availableFlagLXA0 = 1;
+ mxA = mxB;
+ }
+ availableFlagLXB0 = 0;
+
+ // XB0 and L1
+ if (is_available_b0) {
+ availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l0, mxB);
+ if (!availableFlagLXB0)
+ availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l1, mxB);
+ }
+
+ if (is_available_b1 && !availableFlagLXB0) {
+ availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l0, mxB);
+ if (!availableFlagLXB0)
+ availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l1, mxB);
+ }
+
+ if (is_available_b2 && !availableFlagLXB0) {
+ availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l0, mxB);
+ if (!availableFlagLXB0)
+ availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l1, mxB);
+ }
+ }
+
+ if (availableFlagLXA0)
+ mvpcand_list[numMVPCandLX++] = mxA;
+
+ if (availableFlagLXB0 && (!availableFlagLXA0 || mxA.x != mxB.x || mxA.y != mxB.y))
+ mvpcand_list[numMVPCandLX++] = mxB;
+
+ //temporal motion vector prediction candidate
+ if (numMVPCandLX < 2 && s->sh.slice_temporal_mvp_enabled_flag) {
+ Mv mv_col;
+ int available_col = temporal_luma_motion_vector(s, x0, y0, nPbW,
+ nPbH, ref_idx,
+ &mv_col, LX);
+ if (available_col)
+ mvpcand_list[numMVPCandLX++] = mv_col;
+ }
+
+ // insert zero motion vectors when the number of available candidates are less than 2
+ while (numMVPCandLX < 2)
+ mvpcand_list[numMVPCandLX++] = (Mv){ 0, 0 };
+
+ mv->mv[LX].x = mvpcand_list[mvp_lx_flag].x;
+ mv->mv[LX].y = mvpcand_list[mvp_lx_flag].y;
+}
diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c
new file mode 100644
index 0000000..ac2c6f5
--- /dev/null
+++ b/libavcodec/hevc_parser.c
@@ -0,0 +1,125 @@
+/*
+ * HEVC Annex B format parser
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+
+#include "parser.h"
+#include "hevc.h"
+
+#define START_CODE 0x000001 ///< start_code_prefix_one_3bytes
+
+/**
+ * Find the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or END_NOT_FOUND
+ */
+static int hevc_find_frame_end(AVCodecParserContext *s, const uint8_t *buf,
+ int buf_size)
+{
+ int i;
+ ParseContext *pc = s->priv_data;
+
+ for (i = 0; i < buf_size; i++) {
+ int nut;
+
+ pc->state64 = (pc->state64 << 8) | buf[i];
+
+ if (((pc->state64 >> 3 * 8) & 0xFFFFFF) != START_CODE)
+ continue;
+
+ nut = (pc->state64 >> 2 * 8 + 1) & 0x3F;
+ // Beginning of access unit
+ if ((nut >= NAL_VPS && nut <= NAL_AUD) || nut == NAL_SEI_PREFIX ||
+ (nut >= 41 && nut <= 44) || (nut >= 48 && nut <= 55)) {
+ if (pc->frame_start_found) {
+ pc->frame_start_found = 0;
+ return i - 5;
+ }
+ } else if (nut <= NAL_RASL_R ||
+ (nut >= NAL_BLA_W_LP && nut <= NAL_CRA_NUT)) {
+ int first_slice_segment_in_pic_flag = buf[i] >> 7;
+ if (first_slice_segment_in_pic_flag) {
+ if (!pc->frame_start_found) {
+ pc->frame_start_found = 1;
+ s->key_frame = nut >= NAL_BLA_W_LP && nut <= NAL_CRA_NUT;
+ } else { // First slice of next frame found
+ pc->frame_start_found = 0;
+ return i - 5;
+ }
+ }
+ }
+ }
+
+ return END_NOT_FOUND;
+}
+
+static int hevc_parse(AVCodecParserContext *s, AVCodecContext *avctx,
+ const uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size)
+{
+ int next;
+ ParseContext *pc = s->priv_data;
+
+ if (s->flags & PARSER_FLAG_COMPLETE_FRAMES) {
+ next = buf_size;
+ } else {
+ next = hevc_find_frame_end(s, buf, buf_size);
+ if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
+ *poutbuf = NULL;
+ *poutbuf_size = 0;
+ return buf_size;
+ }
+ }
+
+ *poutbuf = buf;
+ *poutbuf_size = buf_size;
+ return next;
+}
+
+// Split after the parameter sets at the beginning of the stream if they exist.
+static int hevc_split(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
+{
+ int i;
+ uint32_t state = -1;
+ int has_ps = 0;
+
+ for (i = 0; i < buf_size; i++) {
+ state = (state << 8) | buf[i];
+ if (((state >> 8) & 0xFFFFFF) == START_CODE) {
+ int nut = (state >> 1) & 0x3F;
+ if (nut >= NAL_VPS && nut <= NAL_PPS)
+ has_ps = 1;
+ else if (has_ps)
+ return i - 3;
+ else // no parameter set at the beginning of the stream
+ return 0;
+ }
+ }
+ return 0;
+}
+
+AVCodecParser ff_hevc_parser = {
+ .codec_ids = { AV_CODEC_ID_HEVC },
+ .priv_data_size = sizeof(ParseContext),
+ .parser_parse = hevc_parse,
+ .parser_close = ff_parse_close,
+ .split = hevc_split,
+};
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
new file mode 100644
index 0000000..15f73be
--- /dev/null
+++ b/libavcodec/hevc_ps.c
@@ -0,0 +1,1329 @@
+/*
+ * HEVC Parameter Set decoding
+ *
+ * Copyright (C) 2012 - 2103 Guillaume Martres
+ * Copyright (C) 2012 - 2103 Mickael Raulet
+ * Copyright (C) 2012 - 2013 Gildas Cocherel
+ * Copyright (C) 2013 Vittorio Giovara
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/imgutils.h"
+
+#include "golomb.h"
+#include "hevc.h"
+
+static const uint8_t default_scaling_list_intra[] = {
+ 16, 16, 16, 16, 17, 18, 21, 24,
+ 16, 16, 16, 16, 17, 19, 22, 25,
+ 16, 16, 17, 18, 20, 22, 25, 29,
+ 16, 16, 18, 21, 24, 27, 31, 36,
+ 17, 17, 20, 24, 30, 35, 41, 47,
+ 18, 19, 22, 27, 35, 44, 54, 65,
+ 21, 22, 25, 31, 41, 54, 70, 88,
+ 24, 25, 29, 36, 47, 65, 88, 115
+};
+
+static const uint8_t default_scaling_list_inter[] = {
+ 16, 16, 16, 16, 17, 18, 20, 24,
+ 16, 16, 16, 17, 18, 20, 24, 25,
+ 16, 16, 17, 18, 20, 24, 25, 28,
+ 16, 17, 18, 20, 24, 25, 28, 33,
+ 17, 18, 20, 24, 25, 28, 33, 41,
+ 18, 20, 24, 25, 28, 33, 41, 54,
+ 20, 24, 25, 28, 33, 41, 54, 71,
+ 24, 25, 28, 33, 41, 54, 71, 91
+};
+
+static const AVRational vui_sar[] = {
+ { 0, 1 },
+ { 1, 1 },
+ { 12, 11 },
+ { 10, 11 },
+ { 16, 11 },
+ { 40, 33 },
+ { 24, 11 },
+ { 20, 11 },
+ { 32, 11 },
+ { 80, 33 },
+ { 18, 11 },
+ { 15, 11 },
+ { 64, 33 },
+ { 160, 99 },
+ { 4, 3 },
+ { 3, 2 },
+ { 2, 1 },
+};
+
+int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
+ const HEVCSPS *sps, int is_slice_header)
+{
+ HEVCLocalContext *lc = &s->HEVClc;
+ uint8_t rps_predict = 0;
+ int delta_poc;
+ int k0 = 0;
+ int k1 = 0;
+ int k = 0;
+ int i;
+
+ GetBitContext *gb = &lc->gb;
+
+ if (rps != sps->st_rps && sps->nb_st_rps)
+ rps_predict = get_bits1(gb);
+
+ if (rps_predict) {
+ const ShortTermRPS *rps_ridx;
+ int delta_rps, abs_delta_rps;
+ uint8_t use_delta_flag = 0;
+ uint8_t delta_rps_sign;
+
+ if (is_slice_header) {
+ int delta_idx = get_ue_golomb_long(gb) + 1;
+ if (delta_idx > sps->nb_st_rps) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
+ delta_idx, sps->nb_st_rps);
+ return AVERROR_INVALIDDATA;
+ }
+ rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
+ } else
+ rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
+
+ delta_rps_sign = get_bits1(gb);
+ abs_delta_rps = get_ue_golomb_long(gb) + 1;
+ delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
+ for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
+ int used = rps->used[k] = get_bits1(gb);
+
+ if (!used)
+ use_delta_flag = get_bits1(gb);
+
+ if (used || use_delta_flag) {
+ if (i < rps_ridx->num_delta_pocs)
+ delta_poc = delta_rps + rps_ridx->delta_poc[i];
+ else
+ delta_poc = delta_rps;
+ rps->delta_poc[k] = delta_poc;
+ if (delta_poc < 0)
+ k0++;
+ else
+ k1++;
+ k++;
+ }
+ }
+
+ rps->num_delta_pocs = k;
+ rps->num_negative_pics = k0;
+ // sort in increasing order (smallest first)
+ if (rps->num_delta_pocs != 0) {
+ int used, tmp;
+ for (i = 1; i < rps->num_delta_pocs; i++) {
+ delta_poc = rps->delta_poc[i];
+ used = rps->used[i];
+ for (k = i - 1; k >= 0; k--) {
+ tmp = rps->delta_poc[k];
+ if (delta_poc < tmp) {
+ rps->delta_poc[k + 1] = tmp;
+ rps->used[k + 1] = rps->used[k];
+ rps->delta_poc[k] = delta_poc;
+ rps->used[k] = used;
+ }
+ }
+ }
+ }
+ if ((rps->num_negative_pics >> 1) != 0) {
+ int used;
+ k = rps->num_negative_pics - 1;
+ // flip the negative values to largest first
+ for (i = 0; i < rps->num_negative_pics >> 1; i++) {
+ delta_poc = rps->delta_poc[i];
+ used = rps->used[i];
+ rps->delta_poc[i] = rps->delta_poc[k];
+ rps->used[i] = rps->used[k];
+ rps->delta_poc[k] = delta_poc;
+ rps->used[k] = used;
+ k--;
+ }
+ }
+ } else {
+ unsigned int prev, nb_positive_pics;
+ rps->num_negative_pics = get_ue_golomb_long(gb);
+ nb_positive_pics = get_ue_golomb_long(gb);
+
+ if (rps->num_negative_pics >= MAX_REFS ||
+ nb_positive_pics >= MAX_REFS) {
+ av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
+ if (rps->num_delta_pocs) {
+ prev = 0;
+ for (i = 0; i < rps->num_negative_pics; i++) {
+ delta_poc = get_ue_golomb_long(gb) + 1;
+ prev -= delta_poc;
+ rps->delta_poc[i] = prev;
+ rps->used[i] = get_bits1(gb);
+ }
+ prev = 0;
+ for (i = 0; i < nb_positive_pics; i++) {
+ delta_poc = get_ue_golomb_long(gb) + 1;
+ prev += delta_poc;
+ rps->delta_poc[rps->num_negative_pics + i] = prev;
+ rps->used[rps->num_negative_pics + i] = get_bits1(gb);
+ }
+ }
+ }
+ return 0;
+}
+
+static int decode_profile_tier_level(HEVCLocalContext *lc, PTL *ptl,
+ int max_num_sub_layers)
+{
+ int i, j;
+ GetBitContext *gb = &lc->gb;
+
+ ptl->general_profile_space = get_bits(gb, 2);
+ ptl->general_tier_flag = get_bits1(gb);
+ ptl->general_profile_idc = get_bits(gb, 5);
+ for (i = 0; i < 32; i++)
+ ptl->general_profile_compatibility_flag[i] = get_bits1(gb);
+ skip_bits1(gb); // general_progressive_source_flag
+ skip_bits1(gb); // general_interlaced_source_flag
+ skip_bits1(gb); // general_non_packed_constraint_flag
+ skip_bits1(gb); // general_frame_only_constraint_flag
+ if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[0..15]
+ return -1;
+ if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[16..31]
+ return -1;
+ if (get_bits(gb, 12) != 0) // XXX_reserved_zero_44bits[32..43]
+ return -1;
+
+ ptl->general_level_idc = get_bits(gb, 8);
+ for (i = 0; i < max_num_sub_layers - 1; i++) {
+ ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
+ ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
+ }
+ if (max_num_sub_layers - 1 > 0)
+ for (i = max_num_sub_layers - 1; i < 8; i++)
+ skip_bits(gb, 2); // reserved_zero_2bits[i]
+ for (i = 0; i < max_num_sub_layers - 1; i++) {
+ if (ptl->sub_layer_profile_present_flag[i]) {
+ ptl->sub_layer_profile_space[i] = get_bits(gb, 2);
+ ptl->sub_layer_tier_flag[i] = get_bits(gb, 1);
+ ptl->sub_layer_profile_idc[i] = get_bits(gb, 5);
+ for (j = 0; j < 32; j++)
+ ptl->sub_layer_profile_compatibility_flags[i][j] = get_bits1(gb);
+ skip_bits1(gb); // sub_layer_progressive_source_flag
+ skip_bits1(gb); // sub_layer_interlaced_source_flag
+ skip_bits1(gb); // sub_layer_non_packed_constraint_flag
+ skip_bits1(gb); // sub_layer_frame_only_constraint_flag
+
+ if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[0..15]
+ return -1;
+ if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[16..31]
+ return -1;
+ if (get_bits(gb, 12) != 0) // sub_layer_reserved_zero_44bits[32..43]
+ return -1;
+ }
+ if (ptl->sub_layer_level_present_flag[i])
+ ptl->sub_layer_level_idc[i] = get_bits(gb, 8);
+ }
+ return 0;
+}
+
+static void decode_sublayer_hrd(HEVCContext *s, int nb_cpb,
+ int subpic_params_present)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ int i;
+
+ for (i = 0; i < nb_cpb; i++) {
+ get_ue_golomb_long(gb); // bit_rate_value_minus1
+ get_ue_golomb_long(gb); // cpb_size_value_minus1
+
+ if (subpic_params_present) {
+ get_ue_golomb_long(gb); // cpb_size_du_value_minus1
+ get_ue_golomb_long(gb); // bit_rate_du_value_minus1
+ }
+ skip_bits1(gb); // cbr_flag
+ }
+}
+
+static void decode_hrd(HEVCContext *s, int common_inf_present,
+ int max_sublayers)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ int nal_params_present = 0, vcl_params_present = 0;
+ int subpic_params_present = 0;
+ int i;
+
+ if (common_inf_present) {
+ nal_params_present = get_bits1(gb);
+ vcl_params_present = get_bits1(gb);
+
+ if (nal_params_present || vcl_params_present) {
+ subpic_params_present = get_bits1(gb);
+
+ if (subpic_params_present) {
+ skip_bits(gb, 8); // tick_divisor_minus2
+ skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
+ skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
+ skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
+ }
+
+ skip_bits(gb, 4); // bit_rate_scale
+ skip_bits(gb, 4); // cpb_size_scale
+
+ if (subpic_params_present)
+ skip_bits(gb, 4); // cpb_size_du_scale
+
+ skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
+ skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
+ skip_bits(gb, 5); // dpb_output_delay_length_minus1
+ }
+ }
+
+ for (i = 0; i < max_sublayers; i++) {
+ int low_delay = 0;
+ int nb_cpb = 1;
+ int fixed_rate = get_bits1(gb);
+
+ if (!fixed_rate)
+ fixed_rate = get_bits1(gb);
+
+ if (fixed_rate)
+ get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
+ else
+ low_delay = get_bits1(gb);
+
+ if (!low_delay)
+ nb_cpb = get_ue_golomb_long(gb) + 1;
+
+ if (nal_params_present)
+ decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
+ if (vcl_params_present)
+ decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
+ }
+}
+
+int ff_hevc_decode_nal_vps(HEVCContext *s)
+{
+ int i,j;
+ GetBitContext *gb = &s->HEVClc.gb;
+ int vps_id = 0;
+ HEVCVPS *vps;
+
+ av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
+
+ vps = av_mallocz(sizeof(*vps));
+ if (!vps)
+ return AVERROR(ENOMEM);
+
+ vps_id = get_bits(gb, 4);
+ if (vps_id >= MAX_VPS_COUNT) {
+ av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
+ goto err;
+ }
+
+ if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
+ av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
+ goto err;
+ }
+
+ vps->vps_max_layers = get_bits(gb, 6) + 1;
+ vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
+ vps->vps_temporal_id_nesting_flag = get_bits1(gb);
+
+ if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
+ av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
+ goto err;
+ }
+
+ if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
+ av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
+ vps->vps_max_sub_layers);
+ goto err;
+ }
+
+ if (decode_profile_tier_level(&s->HEVClc, &vps->ptl, vps->vps_max_sub_layers) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Error decoding profile tier level.\n");
+ goto err;
+ }
+ vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
+
+ i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
+ for (; i < vps->vps_max_sub_layers; i++) {
+ vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
+ vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
+ vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
+
+ if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
+ av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
+ vps->vps_max_dec_pic_buffering[i] - 1);
+ goto err;
+ }
+ if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
+ av_log(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
+ vps->vps_num_reorder_pics[i]);
+ goto err;
+ }
+ }
+
+ vps->vps_max_layer_id = get_bits(gb, 6);
+ vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
+ for (i = 1; i < vps->vps_num_layer_sets; i++)
+ for (j = 0; j <= vps->vps_max_layer_id; j++)
+ skip_bits(gb, 1); // layer_id_included_flag[i][j]
+
+ vps->vps_timing_info_present_flag = get_bits1(gb);
+ if (vps->vps_timing_info_present_flag) {
+ vps->vps_num_units_in_tick = get_bits_long(gb, 32);
+ vps->vps_time_scale = get_bits_long(gb, 32);
+ vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
+ if (vps->vps_poc_proportional_to_timing_flag)
+ vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
+ vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
+ for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
+ int common_inf_present = 1;
+
+ get_ue_golomb_long(gb); // hrd_layer_set_idx
+ if (i)
+ common_inf_present = get_bits1(gb);
+ decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
+ }
+ }
+ get_bits1(gb); /* vps_extension_flag */
+
+ av_free(s->vps_list[vps_id]);
+ s->vps_list[vps_id] = vps;
+ return 0;
+
+err:
+ av_free(vps);
+ return AVERROR_INVALIDDATA;
+}
+
+static void decode_vui(HEVCContext *s, HEVCSPS *sps)
+{
+ VUI *vui = &sps->vui;
+ GetBitContext *gb = &s->HEVClc.gb;
+ int sar_present;
+
+ av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
+
+ sar_present = get_bits1(gb);
+ if (sar_present) {
+ uint8_t sar_idx = get_bits(gb, 8);
+ if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
+ vui->sar = vui_sar[sar_idx];
+ else if (sar_idx == 255) {
+ vui->sar.num = get_bits(gb, 16);
+ vui->sar.den = get_bits(gb, 16);
+ } else
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Unknown SAR index: %u.\n", sar_idx);
+ }
+
+ vui->overscan_info_present_flag = get_bits1(gb);
+ if (vui->overscan_info_present_flag)
+ vui->overscan_appropriate_flag = get_bits1(gb);
+
+ vui->video_signal_type_present_flag = get_bits1(gb);
+ if (vui->video_signal_type_present_flag) {
+ vui->video_format = get_bits(gb, 3);
+ vui->video_full_range_flag = get_bits1(gb);
+ vui->colour_description_present_flag = get_bits1(gb);
+ if (vui->colour_description_present_flag) {
+ vui->colour_primaries = get_bits(gb, 8);
+ vui->transfer_characteristic = get_bits(gb, 8);
+ vui->matrix_coeffs = get_bits(gb, 8);
+ }
+ }
+
+ vui->chroma_loc_info_present_flag = get_bits1(gb);
+ if (vui->chroma_loc_info_present_flag) {
+ vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
+ vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
+ }
+
+ vui->neutra_chroma_indication_flag = get_bits1(gb);
+ vui->field_seq_flag = get_bits1(gb);
+ vui->frame_field_info_present_flag = get_bits1(gb);
+
+ vui->default_display_window_flag = get_bits1(gb);
+ if (vui->default_display_window_flag) {
+ //TODO: * 2 is only valid for 420
+ vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
+ vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
+ vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
+ vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
+
+ if (s->apply_defdispwin &&
+ s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "discarding vui default display window, "
+ "original values are l:%u r:%u t:%u b:%u\n",
+ vui->def_disp_win.left_offset,
+ vui->def_disp_win.right_offset,
+ vui->def_disp_win.top_offset,
+ vui->def_disp_win.bottom_offset);
+
+ vui->def_disp_win.left_offset =
+ vui->def_disp_win.right_offset =
+ vui->def_disp_win.top_offset =
+ vui->def_disp_win.bottom_offset = 0;
+ }
+ }
+
+ vui->vui_timing_info_present_flag = get_bits1(gb);
+ if (vui->vui_timing_info_present_flag) {
+ vui->vui_num_units_in_tick = get_bits(gb, 32);
+ vui->vui_time_scale = get_bits(gb, 32);
+ vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
+ if (vui->vui_poc_proportional_to_timing_flag)
+ vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
+ vui->vui_hrd_parameters_present_flag = get_bits1(gb);
+ if (vui->vui_hrd_parameters_present_flag)
+ decode_hrd(s, 1, sps->max_sub_layers);
+ }
+
+ vui->bitstream_restriction_flag = get_bits1(gb);
+ if (vui->bitstream_restriction_flag) {
+ vui->tiles_fixed_structure_flag = get_bits1(gb);
+ vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
+ vui->restricted_ref_pic_lists_flag = get_bits1(gb);
+ vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
+ vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
+ vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
+ vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
+ vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
+ }
+}
+
+static void set_default_scaling_list_data(ScalingList *sl)
+{
+ int matrixId;
+
+ for (matrixId = 0; matrixId < 6; matrixId++) {
+ // 4x4 default is 16
+ memset(sl->sl[0][matrixId], 16, 16);
+ sl->sl_dc[0][matrixId] = 16; // default for 16x16
+ sl->sl_dc[1][matrixId] = 16; // default for 32x32
+ }
+ memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
+ memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
+ memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
+ memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
+ memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
+ memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
+ memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
+ memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
+ memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
+ memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
+ memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
+ memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
+ memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
+ memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
+}
+
+static int scaling_list_data(HEVCContext *s, ScalingList *sl)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ uint8_t scaling_list_pred_mode_flag[4][6];
+ int32_t scaling_list_dc_coef[2][6];
+ int size_id, matrix_id, i, pos, delta;
+
+ for (size_id = 0; size_id < 4; size_id++)
+ for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
+ scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
+ if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
+ delta = get_ue_golomb_long(gb);
+ /* Only need to handle non-zero delta. Zero means default,
+ * which should already be in the arrays. */
+ if (delta) {
+ // Copy from previous array.
+ if (matrix_id - delta < 0) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid delta in scaling list data: %d.\n", delta);
+ return AVERROR_INVALIDDATA;
+ }
+
+ memcpy(sl->sl[size_id][matrix_id],
+ sl->sl[size_id][matrix_id - delta],
+ size_id > 0 ? 64 : 16);
+ if (size_id > 1)
+ sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
+ }
+ } else {
+ int next_coef, coef_num;
+ int32_t scaling_list_delta_coef;
+
+ next_coef = 8;
+ coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
+ if (size_id > 1) {
+ scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
+ next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
+ sl->sl_dc[size_id - 2][matrix_id] = next_coef;
+ }
+ for (i = 0; i < coef_num; i++) {
+ if (size_id == 0)
+ pos = 4 * ff_hevc_diag_scan4x4_y[i] +
+ ff_hevc_diag_scan4x4_x[i];
+ else
+ pos = 8 * ff_hevc_diag_scan8x8_y[i] +
+ ff_hevc_diag_scan8x8_x[i];
+
+ scaling_list_delta_coef = get_se_golomb(gb);
+ next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
+ sl->sl[size_id][matrix_id][pos] = next_coef;
+ }
+ }
+ }
+
+ return 0;
+}
+
+int ff_hevc_decode_nal_sps(HEVCContext *s)
+{
+ const AVPixFmtDescriptor *desc;
+ GetBitContext *gb = &s->HEVClc.gb;
+ int ret = 0;
+ int sps_id = 0;
+ int log2_diff_max_min_transform_block_size;
+ int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
+ int i;
+
+ HEVCSPS *sps;
+ AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
+
+ if (!sps_buf)
+ return AVERROR(ENOMEM);
+ sps = (HEVCSPS*)sps_buf->data;
+
+ av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
+
+ // Coded parameters
+
+ sps->vps_id = get_bits(gb, 4);
+ if (sps->vps_id >= MAX_VPS_COUNT) {
+ av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ sps->max_sub_layers = get_bits(gb, 3) + 1;
+ if (sps->max_sub_layers > MAX_SUB_LAYERS) {
+ av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
+ sps->max_sub_layers);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ skip_bits1(gb); // temporal_id_nesting_flag
+ if (decode_profile_tier_level(&s->HEVClc, &sps->ptl,
+ sps->max_sub_layers) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "error decoding profile tier level\n");
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ sps_id = get_ue_golomb_long(gb);
+ if (sps_id >= MAX_SPS_COUNT) {
+ av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ sps->chroma_format_idc = get_ue_golomb_long(gb);
+ if (sps->chroma_format_idc != 1) {
+ avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
+ ret = AVERROR_PATCHWELCOME;
+ goto err;
+ }
+
+ if (sps->chroma_format_idc == 3)
+ sps->separate_colour_plane_flag = get_bits1(gb);
+
+ sps->width = get_ue_golomb_long(gb);
+ sps->height = get_ue_golomb_long(gb);
+ if ((ret = av_image_check_size(sps->width,
+ sps->height, 0, s->avctx)) < 0)
+ goto err;
+
+ if (get_bits1(gb)) { // pic_conformance_flag
+ //TODO: * 2 is only valid for 420
+ sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
+ sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
+ sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
+ sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
+
+ if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "discarding sps conformance window, "
+ "original values are l:%u r:%u t:%u b:%u\n",
+ sps->pic_conf_win.left_offset,
+ sps->pic_conf_win.right_offset,
+ sps->pic_conf_win.top_offset,
+ sps->pic_conf_win.bottom_offset);
+
+ sps->pic_conf_win.left_offset =
+ sps->pic_conf_win.right_offset =
+ sps->pic_conf_win.top_offset =
+ sps->pic_conf_win.bottom_offset = 0;
+ }
+ sps->output_window = sps->pic_conf_win;
+ }
+
+ sps->bit_depth = get_ue_golomb_long(gb) + 8;
+ bit_depth_chroma = get_ue_golomb_long(gb) + 8;
+ if (bit_depth_chroma != sps->bit_depth) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Luma bit depth (%d) is different from chroma bit depth (%d), "
+ "this is unsupported.\n",
+ sps->bit_depth, bit_depth_chroma);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ if (sps->chroma_format_idc == 1) {
+ switch (sps->bit_depth) {
+ case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
+ case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
+ case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
+ default:
+ av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
+ sps->bit_depth);
+ ret = AVERROR_PATCHWELCOME;
+ goto err;
+ }
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "non-4:2:0 support is currently unspecified.\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ desc = av_pix_fmt_desc_get(sps->pix_fmt);
+ if (!desc) {
+ ret = AVERROR(EINVAL);
+ goto err;
+ }
+
+ sps->hshift[0] = sps->vshift[0] = 0;
+ sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
+ sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
+
+ sps->pixel_shift = sps->bit_depth > 8;
+
+ sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
+ if (sps->log2_max_poc_lsb > 16) {
+ av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
+ sps->log2_max_poc_lsb - 4);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ sublayer_ordering_info = get_bits1(gb);
+ start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
+ for (i = start; i < sps->max_sub_layers; i++) {
+ sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
+ sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
+ sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
+ if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
+ av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
+ sps->temporal_layer[i].max_dec_pic_buffering - 1);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
+ av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
+ sps->temporal_layer[i].num_reorder_pics);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ }
+
+ if (!sublayer_ordering_info) {
+ for (i = 0; i < start; i++) {
+ sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
+ sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
+ sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
+ }
+ }
+
+ sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
+ sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
+ sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
+ log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
+ sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
+ sps->log2_min_tb_size;
+
+ if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
+ sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
+
+ sps->scaling_list_enable_flag = get_bits1(gb);
+ if (sps->scaling_list_enable_flag) {
+ set_default_scaling_list_data(&sps->scaling_list);
+
+ if (get_bits1(gb)) {
+ ret = scaling_list_data(s, &sps->scaling_list);
+ if (ret < 0)
+ goto err;
+ }
+ }
+
+ sps->amp_enabled_flag = get_bits1(gb);
+ sps->sao_enabled = get_bits1(gb);
+
+ sps->pcm_enabled_flag = get_bits1(gb);
+ if (sps->pcm_enabled_flag) {
+ int pcm_bit_depth_chroma;
+ sps->pcm.bit_depth = get_bits(gb, 4) + 1;
+ pcm_bit_depth_chroma = get_bits(gb, 4) + 1;
+ if (pcm_bit_depth_chroma != sps->pcm.bit_depth) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "PCM Luma bit depth (%d) is different from PCM chroma"
+ "bit depth (%d), this is unsupported.\n",
+ sps->pcm.bit_depth, pcm_bit_depth_chroma);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
+ sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
+ get_ue_golomb_long(gb);
+ if (sps->pcm.bit_depth > sps->bit_depth) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
+ sps->pcm.bit_depth, sps->bit_depth);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ sps->pcm.loop_filter_disable_flag = get_bits1(gb);
+ }
+
+ sps->nb_st_rps = get_ue_golomb_long(gb);
+ if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
+ av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
+ sps->nb_st_rps);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ for (i = 0; i < sps->nb_st_rps; i++) {
+ if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
+ sps, 0)) < 0)
+ goto err;
+ }
+
+ sps->long_term_ref_pics_present_flag = get_bits1(gb);
+ if (sps->long_term_ref_pics_present_flag) {
+ sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
+ for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
+ sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
+ sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
+ }
+ }
+
+ sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
+ sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
+ sps->vui.sar = (AVRational){0, 1};
+ vui_present = get_bits1(gb);
+ if (vui_present)
+ decode_vui(s, sps);
+ skip_bits1(gb); // sps_extension_flag
+
+ if (s->apply_defdispwin) {
+ sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
+ sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
+ sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
+ sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
+ }
+ if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
+ !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
+ sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
+ av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
+ "chroma samples to preserve alignment.\n",
+ sps->output_window.left_offset);
+ }
+ sps->output_width = sps->width -
+ (sps->output_window.left_offset + sps->output_window.right_offset);
+ sps->output_height = sps->height -
+ (sps->output_window.top_offset + sps->output_window.bottom_offset);
+ if (sps->output_width <= 0 || sps->output_height <= 0) {
+ av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
+ sps->output_width, sps->output_height);
+ if (s->avctx->err_recognition & AV_EF_EXPLODE) {
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Displaying the whole video surface.\n");
+ sps->pic_conf_win.left_offset =
+ sps->pic_conf_win.right_offset =
+ sps->pic_conf_win.top_offset =
+ sps->pic_conf_win.bottom_offset = 0;
+ sps->output_width = sps->width;
+ sps->output_height = sps->height;
+ }
+
+ // Inferred parameters
+ sps->log2_ctb_size = sps->log2_min_cb_size +
+ sps->log2_diff_max_min_coding_block_size;
+ sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
+
+ sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
+ sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
+ sps->ctb_size = sps->ctb_width * sps->ctb_height;
+
+ sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
+ sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
+ sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
+ sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
+ sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
+ sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
+
+ sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
+
+ if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
+ sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
+ goto err;
+ }
+
+ if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
+ av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
+ goto err;
+ }
+ if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
+ av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
+ sps->max_transform_hierarchy_depth_inter);
+ goto err;
+ }
+ if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
+ av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
+ sps->max_transform_hierarchy_depth_intra);
+ goto err;
+ }
+ if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "max transform block size out of range: %d\n",
+ sps->log2_max_trafo_size);
+ goto err;
+ }
+
+ if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "Parsed SPS: id %d; coded wxh: %dx%d; "
+ "cropped wxh: %dx%d; pix_fmt: %s.\n",
+ sps_id, sps->width, sps->height,
+ sps->output_width, sps->output_height,
+ av_get_pix_fmt_name(sps->pix_fmt));
+ }
+
+ /* check if this is a repeat of an already parsed SPS, then keep the
+ * original one.
+ * otherwise drop all PPSes that depend on it */
+ if (s->sps_list[sps_id] &&
+ !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
+ av_buffer_unref(&sps_buf);
+ } else {
+ for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
+ if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
+ av_buffer_unref(&s->pps_list[i]);
+ }
+ av_buffer_unref(&s->sps_list[sps_id]);
+ s->sps_list[sps_id] = sps_buf;
+ }
+
+ return 0;
+
+err:
+ av_buffer_unref(&sps_buf);
+ return ret;
+}
+
+static void hevc_pps_free(void *opaque, uint8_t *data)
+{
+ HEVCPPS *pps = (HEVCPPS*)data;
+
+ av_freep(&pps->column_width);
+ av_freep(&pps->row_height);
+ av_freep(&pps->col_bd);
+ av_freep(&pps->row_bd);
+ av_freep(&pps->col_idxX);
+ av_freep(&pps->ctb_addr_rs_to_ts);
+ av_freep(&pps->ctb_addr_ts_to_rs);
+ av_freep(&pps->tile_pos_rs);
+ av_freep(&pps->tile_id);
+ av_freep(&pps->min_cb_addr_zs);
+ av_freep(&pps->min_tb_addr_zs);
+
+ av_freep(&pps);
+}
+
+int ff_hevc_decode_nal_pps(HEVCContext *s)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+ HEVCSPS *sps = NULL;
+ int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
+ int log2_diff_ctb_min_tb_size;
+ int i, j, x, y, ctb_addr_rs, tile_id;
+ int ret = 0;
+ int pps_id = 0;
+
+ AVBufferRef *pps_buf;
+ HEVCPPS *pps = av_mallocz(sizeof(*pps));
+
+ if (!pps)
+ return AVERROR(ENOMEM);
+
+ pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
+ hevc_pps_free, NULL, 0);
+ if (!pps_buf) {
+ av_freep(&pps);
+ return AVERROR(ENOMEM);
+ }
+
+ av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
+
+ // Default values
+ pps->loop_filter_across_tiles_enabled_flag = 1;
+ pps->num_tile_columns = 1;
+ pps->num_tile_rows = 1;
+ pps->uniform_spacing_flag = 1;
+ pps->disable_dbf = 0;
+ pps->beta_offset = 0;
+ pps->tc_offset = 0;
+
+ // Coded parameters
+ pps_id = get_ue_golomb_long(gb);
+ if (pps_id >= MAX_PPS_COUNT) {
+ av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ pps->sps_id = get_ue_golomb_long(gb);
+ if (pps->sps_id >= MAX_SPS_COUNT) {
+ av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ if (!s->sps_list[pps->sps_id]) {
+ av_log(s->avctx, AV_LOG_ERROR, "SPS does not exist \n");
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
+
+ pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
+ pps->output_flag_present_flag = get_bits1(gb);
+ pps->num_extra_slice_header_bits = get_bits(gb, 3);
+
+ pps->sign_data_hiding_flag = get_bits1(gb);
+
+ pps->cabac_init_present_flag = get_bits1(gb);
+
+ pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
+ pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
+
+ pps->pic_init_qp_minus26 = get_se_golomb(gb);
+
+ pps->constrained_intra_pred_flag = get_bits1(gb);
+ pps->transform_skip_enabled_flag = get_bits1(gb);
+
+ pps->cu_qp_delta_enabled_flag = get_bits1(gb);
+ pps->diff_cu_qp_delta_depth = 0;
+ if (pps->cu_qp_delta_enabled_flag)
+ pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
+
+ pps->cb_qp_offset = get_se_golomb(gb);
+ if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
+ av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
+ pps->cb_qp_offset);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ pps->cr_qp_offset = get_se_golomb(gb);
+ if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
+ av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
+ pps->cr_qp_offset);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
+
+ pps->weighted_pred_flag = get_bits1(gb);
+ pps->weighted_bipred_flag = get_bits1(gb);
+
+ pps->transquant_bypass_enable_flag = get_bits1(gb);
+ pps->tiles_enabled_flag = get_bits1(gb);
+ pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
+
+ if (pps->tiles_enabled_flag) {
+ pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
+ pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
+ if (pps->num_tile_columns == 0 ||
+ pps->num_tile_columns >= sps->width) {
+ av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
+ pps->num_tile_columns - 1);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ if (pps->num_tile_rows == 0 ||
+ pps->num_tile_rows >= sps->height) {
+ av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
+ pps->num_tile_rows - 1);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
+ pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
+ if (!pps->column_width || !pps->row_height) {
+ ret = AVERROR(ENOMEM);
+ goto err;
+ }
+
+ pps->uniform_spacing_flag = get_bits1(gb);
+ if (!pps->uniform_spacing_flag) {
+ int sum = 0;
+ for (i = 0; i < pps->num_tile_columns - 1; i++) {
+ pps->column_width[i] = get_ue_golomb_long(gb) + 1;
+ sum += pps->column_width[i];
+ }
+ if (sum >= sps->ctb_width) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
+
+ sum = 0;
+ for (i = 0; i < pps->num_tile_rows - 1; i++) {
+ pps->row_height[i] = get_ue_golomb_long(gb) + 1;
+ sum += pps->row_height[i];
+ }
+ if (sum >= sps->ctb_height) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
+ }
+ pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
+ }
+
+ pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
+
+ pps->deblocking_filter_control_present_flag = get_bits1(gb);
+ if (pps->deblocking_filter_control_present_flag) {
+ pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
+ pps->disable_dbf = get_bits1(gb);
+ if (!pps->disable_dbf) {
+ pps->beta_offset = get_se_golomb(gb) * 2;
+ pps->tc_offset = get_se_golomb(gb) * 2;
+ if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
+ av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
+ pps->beta_offset/2);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
+ av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
+ pps->tc_offset/2);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+ }
+ }
+
+ pps->scaling_list_data_present_flag = get_bits1(gb);
+ if (pps->scaling_list_data_present_flag) {
+ set_default_scaling_list_data(&pps->scaling_list);
+ ret = scaling_list_data(s, &pps->scaling_list);
+ if (ret < 0)
+ goto err;
+ }
+ pps->lists_modification_present_flag = get_bits1(gb);
+ pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
+ if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
+ av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
+ pps->log2_parallel_merge_level - 2);
+ ret = AVERROR_INVALIDDATA;
+ goto err;
+ }
+
+ pps->slice_header_extension_present_flag = get_bits1(gb);
+ skip_bits1(gb); // pps_extension_flag
+
+ // Inferred parameters
+ pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
+ pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
+ pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
+ if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
+ ret = AVERROR(ENOMEM);
+ goto err;
+ }
+
+ if (pps->uniform_spacing_flag) {
+ if (!pps->column_width) {
+ pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
+ pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
+ }
+ if (!pps->column_width || !pps->row_height) {
+ ret = AVERROR(ENOMEM);
+ goto err;
+ }
+
+ for (i = 0; i < pps->num_tile_columns; i++) {
+ pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
+ (i * sps->ctb_width) / pps->num_tile_columns;
+ }
+
+ for (i = 0; i < pps->num_tile_rows; i++) {
+ pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
+ (i * sps->ctb_height) / pps->num_tile_rows;
+ }
+ }
+
+ pps->col_bd[0] = 0;
+ for (i = 0; i < pps->num_tile_columns; i++)
+ pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
+
+ pps->row_bd[0] = 0;
+ for (i = 0; i < pps->num_tile_rows; i++)
+ pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
+
+ for (i = 0, j = 0; i < sps->ctb_width; i++) {
+ if (i > pps->col_bd[j])
+ j++;
+ pps->col_idxX[i] = j;
+ }
+
+ /**
+ * 6.5
+ */
+ pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
+ pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
+ pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
+
+ pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
+ pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
+ pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
+ pps->min_cb_addr_zs = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
+ pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
+ if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
+ !pps->tile_id || !pps->min_cb_addr_zs || !pps->min_tb_addr_zs) {
+ ret = AVERROR(ENOMEM);
+ goto err;
+ }
+
+ for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
+ int tb_x = ctb_addr_rs % sps->ctb_width;
+ int tb_y = ctb_addr_rs / sps->ctb_width;
+ int tile_x = 0;
+ int tile_y = 0;
+ int val = 0;
+
+ for (i = 0; i < pps->num_tile_columns; i++) {
+ if (tb_x < pps->col_bd[i + 1]) {
+ tile_x = i;
+ break;
+ }
+ }
+
+ for (i = 0; i < pps->num_tile_rows; i++) {
+ if (tb_y < pps->row_bd[i + 1]) {
+ tile_y = i;
+ break;
+ }
+ }
+
+ for (i = 0; i < tile_x; i++)
+ val += pps->row_height[tile_y] * pps->column_width[i];
+ for (i = 0; i < tile_y; i++)
+ val += sps->ctb_width * pps->row_height[i];
+
+ val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
+ tb_x - pps->col_bd[tile_x];
+
+ pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
+ pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
+ }
+
+ for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
+ for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
+ for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
+ for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
+ pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
+
+ pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
+ if (!pps->tile_pos_rs) {
+ ret = AVERROR(ENOMEM);
+ goto err;
+ }
+
+ for (j = 0; j < pps->num_tile_rows; j++)
+ for (i = 0; i < pps->num_tile_columns; i++)
+ pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
+
+ for (y = 0; y < sps->min_cb_height; y++) {
+ for (x = 0; x < sps->min_cb_width; x++) {
+ int tb_x = x >> sps->log2_diff_max_min_coding_block_size;
+ int tb_y = y >> sps->log2_diff_max_min_coding_block_size;
+ int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
+ int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
+ (sps->log2_diff_max_min_coding_block_size * 2);
+ for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
+ int m = 1 << i;
+ val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
+ }
+ pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
+ }
+ }
+
+ log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
+ for (y = 0; y < sps->min_tb_height; y++) {
+ for (x = 0; x < sps->min_tb_width; x++) {
+ int tb_x = x >> log2_diff_ctb_min_tb_size;
+ int tb_y = y >> log2_diff_ctb_min_tb_size;
+ int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
+ int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
+ (log2_diff_ctb_min_tb_size * 2);
+ for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
+ int m = 1 << i;
+ val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
+ }
+ pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
+ }
+ }
+
+ av_buffer_unref(&s->pps_list[pps_id]);
+ s->pps_list[pps_id] = pps_buf;
+
+ return 0;
+
+err:
+ av_buffer_unref(&pps_buf);
+ return ret;
+}
diff --git a/libavcodec/hevc_refs.c b/libavcodec/hevc_refs.c
new file mode 100644
index 0000000..2fbe9e7
--- /dev/null
+++ b/libavcodec/hevc_refs.c
@@ -0,0 +1,489 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2012 - 2013 Gildas Cocherel
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/pixdesc.h"
+
+#include "internal.h"
+#include "thread.h"
+#include "hevc.h"
+
+void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags)
+{
+ /* frame->frame can be NULL if context init failed */
+ if (!frame->frame || !frame->frame->buf[0])
+ return;
+
+ frame->flags &= ~flags;
+ if (!frame->flags) {
+ ff_thread_release_buffer(s->avctx, &frame->tf);
+
+ av_buffer_unref(&frame->tab_mvf_buf);
+ frame->tab_mvf = NULL;
+
+ av_buffer_unref(&frame->rpl_buf);
+ av_buffer_unref(&frame->rpl_tab_buf);
+ frame->rpl_tab = NULL;
+ frame->refPicList = NULL;
+
+ frame->collocated_ref = NULL;
+ }
+}
+
+RefPicList *ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *ref, int x0, int y0)
+{
+ if (x0 < 0 || y0 < 0) {
+ return s->ref->refPicList;
+ } else {
+ int x_cb = x0 >> s->sps->log2_ctb_size;
+ int y_cb = y0 >> s->sps->log2_ctb_size;
+ int pic_width_cb = (s->sps->width + (1 << s->sps->log2_ctb_size) - 1) >>
+ s->sps->log2_ctb_size;
+ int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[y_cb * pic_width_cb + x_cb];
+ return (RefPicList *)ref->rpl_tab[ctb_addr_ts];
+ }
+}
+
+void ff_hevc_clear_refs(HEVCContext *s)
+{
+ int i;
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
+ ff_hevc_unref_frame(s, &s->DPB[i],
+ HEVC_FRAME_FLAG_SHORT_REF |
+ HEVC_FRAME_FLAG_LONG_REF);
+}
+
+void ff_hevc_flush_dpb(HEVCContext *s)
+{
+ int i;
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
+ ff_hevc_unref_frame(s, &s->DPB[i], ~0);
+}
+
+static HEVCFrame *alloc_frame(HEVCContext *s)
+{
+ int i, j, ret;
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ HEVCFrame *frame = &s->DPB[i];
+ if (frame->frame->buf[0])
+ continue;
+
+ ret = ff_thread_get_buffer(s->avctx, &frame->tf,
+ AV_GET_BUFFER_FLAG_REF);
+ if (ret < 0)
+ return NULL;
+
+ frame->rpl_buf = av_buffer_allocz(s->nb_nals * sizeof(RefPicListTab));
+ if (!frame->rpl_buf)
+ goto fail;
+
+ frame->tab_mvf_buf = av_buffer_pool_get(s->tab_mvf_pool);
+ if (!frame->tab_mvf_buf)
+ goto fail;
+ frame->tab_mvf = (MvField *)frame->tab_mvf_buf->data;
+
+ frame->rpl_tab_buf = av_buffer_pool_get(s->rpl_tab_pool);
+ if (!frame->rpl_tab_buf)
+ goto fail;
+ frame->rpl_tab = (RefPicListTab **)frame->rpl_tab_buf->data;
+ frame->ctb_count = s->sps->ctb_width * s->sps->ctb_height;
+ for (j = 0; j < frame->ctb_count; j++)
+ frame->rpl_tab[j] = (RefPicListTab *)frame->rpl_buf->data;
+
+ return frame;
+
+fail:
+ ff_hevc_unref_frame(s, frame, ~0);
+ return NULL;
+ }
+ av_log(s->avctx, AV_LOG_ERROR, "Error allocating frame, DPB full.\n");
+ return NULL;
+}
+
+int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
+{
+ HEVCFrame *ref;
+ int i;
+
+ /* check that this POC doesn't already exist */
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ HEVCFrame *frame = &s->DPB[i];
+
+ if (frame->frame->buf[0] && frame->sequence == s->seq_decode &&
+ frame->poc == poc) {
+ av_log(s->avctx, AV_LOG_ERROR, "Duplicate POC in a sequence: %d.\n",
+ poc);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ ref = alloc_frame(s);
+ if (!ref)
+ return AVERROR(ENOMEM);
+
+ *frame = ref->frame;
+ s->ref = ref;
+
+ ref->poc = poc;
+ ref->flags = HEVC_FRAME_FLAG_OUTPUT | HEVC_FRAME_FLAG_SHORT_REF;
+ ref->sequence = s->seq_decode;
+ ref->window = s->sps->output_window;
+
+ return 0;
+}
+
+int ff_hevc_output_frame(HEVCContext *s, AVFrame *out, int flush)
+{
+ do {
+ int nb_output = 0;
+ int min_poc = INT_MAX;
+ int i, min_idx, ret;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ HEVCFrame *frame = &s->DPB[i];
+ if ((frame->flags & HEVC_FRAME_FLAG_OUTPUT) &&
+ frame->sequence == s->seq_output) {
+ nb_output++;
+ if (frame->poc < min_poc) {
+ min_poc = frame->poc;
+ min_idx = i;
+ }
+ }
+ }
+
+ /* wait for more frames before output */
+ if (!flush && s->seq_output == s->seq_decode && s->sps &&
+ nb_output <= s->sps->temporal_layer[s->sps->max_sub_layers - 1].num_reorder_pics)
+ return 0;
+
+ if (nb_output) {
+ HEVCFrame *frame = &s->DPB[min_idx];
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->frame->format);
+ int pixel_shift;
+
+ if (!desc)
+ return AVERROR_BUG;
+
+ pixel_shift = desc->comp[0].depth_minus1 > 7;
+
+ ret = av_frame_ref(out, frame->frame);
+ ff_hevc_unref_frame(s, frame, HEVC_FRAME_FLAG_OUTPUT);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ int hshift = (i > 0) ? desc->log2_chroma_w : 0;
+ int vshift = (i > 0) ? desc->log2_chroma_h : 0;
+ int off = ((frame->window.left_offset >> hshift) << pixel_shift) +
+ (frame->window.top_offset >> vshift) * out->linesize[i];
+ out->data[i] += off;
+ }
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "Output frame with POC %d.\n", frame->poc);
+ return 1;
+ }
+
+ if (s->seq_output != s->seq_decode)
+ s->seq_output = (s->seq_output + 1) & 0xff;
+ else
+ break;
+ } while (1);
+
+ return 0;
+}
+
+static int init_slice_rpl(HEVCContext *s)
+{
+ HEVCFrame *frame = s->ref;
+ int ctb_count = frame->ctb_count;
+ int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_segment_addr];
+ int i;
+
+ if (s->slice_idx >= frame->rpl_buf->size / sizeof(RefPicListTab))
+ return AVERROR_INVALIDDATA;
+
+ for (i = ctb_addr_ts; i < ctb_count; i++)
+ frame->rpl_tab[i] = (RefPicListTab *)frame->rpl_buf->data + s->slice_idx;
+
+ frame->refPicList = (RefPicList *)frame->rpl_tab[ctb_addr_ts];
+
+ return 0;
+}
+
+int ff_hevc_slice_rpl(HEVCContext *s)
+{
+ SliceHeader *sh = &s->sh;
+
+ uint8_t nb_list = sh->slice_type == B_SLICE ? 2 : 1;
+ uint8_t list_idx;
+ int i, j, ret;
+
+ ret = init_slice_rpl(s);
+ if (ret < 0)
+ return ret;
+
+ if (!(s->rps[ST_CURR_BEF].nb_refs + s->rps[ST_CURR_AFT].nb_refs +
+ s->rps[LT_CURR].nb_refs)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Zero refs in the frame RPS.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ for (list_idx = 0; list_idx < nb_list; list_idx++) {
+ RefPicList rpl_tmp = { { 0 } };
+ RefPicList *rpl = &s->ref->refPicList[list_idx];
+
+ /* The order of the elements is
+ * ST_CURR_BEF - ST_CURR_AFT - LT_CURR for the L0 and
+ * ST_CURR_AFT - ST_CURR_BEF - LT_CURR for the L1 */
+ int cand_lists[3] = { list_idx ? ST_CURR_AFT : ST_CURR_BEF,
+ list_idx ? ST_CURR_BEF : ST_CURR_AFT,
+ LT_CURR };
+
+ /* concatenate the candidate lists for the current frame */
+ while (rpl_tmp.nb_refs < sh->nb_refs[list_idx]) {
+ for (i = 0; i < FF_ARRAY_ELEMS(cand_lists); i++) {
+ RefPicList *rps = &s->rps[cand_lists[i]];
+ for (j = 0; j < rps->nb_refs && rpl_tmp.nb_refs < MAX_REFS; j++) {
+ rpl_tmp.list[rpl_tmp.nb_refs] = rps->list[j];
+ rpl_tmp.ref[rpl_tmp.nb_refs] = rps->ref[j];
+ rpl_tmp.isLongTerm[rpl_tmp.nb_refs] = i == 2;
+ rpl_tmp.nb_refs++;
+ }
+ }
+ }
+
+ /* reorder the references if necessary */
+ if (sh->rpl_modification_flag[list_idx]) {
+ for (i = 0; i < sh->nb_refs[list_idx]; i++) {
+ int idx = sh->list_entry_lx[list_idx][i];
+
+ if (idx >= rpl_tmp.nb_refs) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid reference index.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ rpl->list[i] = rpl_tmp.list[idx];
+ rpl->ref[i] = rpl_tmp.ref[idx];
+ rpl->isLongTerm[i] = rpl_tmp.isLongTerm[idx];
+ rpl->nb_refs++;
+ }
+ } else {
+ memcpy(rpl, &rpl_tmp, sizeof(*rpl));
+ rpl->nb_refs = FFMIN(rpl->nb_refs, sh->nb_refs[list_idx]);
+ }
+
+ if (sh->collocated_list == list_idx &&
+ sh->collocated_ref_idx < rpl->nb_refs)
+ s->ref->collocated_ref = rpl->ref[sh->collocated_ref_idx];
+ }
+
+ return 0;
+}
+
+static HEVCFrame *find_ref_idx(HEVCContext *s, int poc)
+{
+ int i;
+ int LtMask = (1 << s->sps->log2_max_poc_lsb) - 1;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ HEVCFrame *ref = &s->DPB[i];
+ if (ref->frame->buf[0] && (ref->sequence == s->seq_decode)) {
+ if ((ref->poc & LtMask) == poc)
+ return ref;
+ }
+ }
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ HEVCFrame *ref = &s->DPB[i];
+ if (ref->frame->buf[0] && ref->sequence == s->seq_decode) {
+ if (ref->poc == poc || (ref->poc & LtMask) == poc)
+ return ref;
+ }
+ }
+
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Could not find ref with POC %d\n", poc);
+ return NULL;
+}
+
+static void mark_ref(HEVCFrame *frame, int flag)
+{
+ frame->flags &= ~(HEVC_FRAME_FLAG_LONG_REF | HEVC_FRAME_FLAG_SHORT_REF);
+ frame->flags |= flag;
+}
+
+static HEVCFrame *generate_missing_ref(HEVCContext *s, int poc)
+{
+ HEVCFrame *frame;
+ int i, x, y;
+
+ frame = alloc_frame(s);
+ if (!frame)
+ return NULL;
+
+ if (!s->sps->pixel_shift) {
+ for (i = 0; frame->frame->buf[i]; i++)
+ memset(frame->frame->buf[i]->data, 1 << (s->sps->bit_depth - 1),
+ frame->frame->buf[i]->size);
+ } else {
+ for (i = 0; frame->frame->data[i]; i++)
+ for (y = 0; y < (s->sps->height >> s->sps->vshift[i]); y++)
+ for (x = 0; x < (s->sps->width >> s->sps->hshift[i]); x++) {
+ AV_WN16(frame->frame->data[i] + y * frame->frame->linesize[i] + 2 * x,
+ 1 << (s->sps->bit_depth - 1));
+ }
+ }
+
+ frame->poc = poc;
+ frame->sequence = s->seq_decode;
+ frame->flags = 0;
+
+ ff_thread_report_progress(&frame->tf, INT_MAX, 0);
+
+ return frame;
+}
+
+/* add a reference with the given poc to the list and mark it as used in DPB */
+static int add_candidate_ref(HEVCContext *s, RefPicList *list,
+ int poc, int ref_flag)
+{
+ HEVCFrame *ref = find_ref_idx(s, poc);
+
+ if (ref == s->ref)
+ return AVERROR_INVALIDDATA;
+
+ if (!ref) {
+ ref = generate_missing_ref(s, poc);
+ if (!ref)
+ return AVERROR(ENOMEM);
+ }
+
+ list->list[list->nb_refs] = ref->poc;
+ list->ref[list->nb_refs] = ref;
+ list->nb_refs++;
+
+ mark_ref(ref, ref_flag);
+ return 0;
+}
+
+int ff_hevc_frame_rps(HEVCContext *s)
+{
+ const ShortTermRPS *short_rps = s->sh.short_term_rps;
+ const LongTermRPS *long_rps = &s->sh.long_term_rps;
+ RefPicList *rps = s->rps;
+ int i, ret;
+
+ if (!short_rps) {
+ rps[0].nb_refs = rps[1].nb_refs = 0;
+ return 0;
+ }
+
+ /* clear the reference flags on all frames except the current one */
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
+ HEVCFrame *frame = &s->DPB[i];
+
+ if (frame == s->ref)
+ continue;
+
+ mark_ref(frame, 0);
+ }
+
+ for (i = 0; i < NB_RPS_TYPE; i++)
+ rps[i].nb_refs = 0;
+
+ /* add the short refs */
+ for (i = 0; i < short_rps->num_delta_pocs; i++) {
+ int poc = s->poc + short_rps->delta_poc[i];
+ int list;
+
+ if (!short_rps->used[i])
+ list = ST_FOLL;
+ else if (i < short_rps->num_negative_pics)
+ list = ST_CURR_BEF;
+ else
+ list = ST_CURR_AFT;
+
+ ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_SHORT_REF);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* add the long refs */
+ for (i = 0; i < long_rps->nb_refs; i++) {
+ int poc = long_rps->poc[i];
+ int list = long_rps->used[i] ? LT_CURR : LT_FOLL;
+
+ ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_LONG_REF);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* release any frames that are now unused */
+ for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
+ ff_hevc_unref_frame(s, &s->DPB[i], 0);
+
+ return 0;
+}
+
+int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb)
+{
+ int max_poc_lsb = 1 << s->sps->log2_max_poc_lsb;
+ int prev_poc_lsb = s->pocTid0 % max_poc_lsb;
+ int prev_poc_msb = s->pocTid0 - prev_poc_lsb;
+ int poc_msb;
+
+ if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
+ poc_msb = prev_poc_msb + max_poc_lsb;
+ else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
+ poc_msb = prev_poc_msb - max_poc_lsb;
+ else
+ poc_msb = prev_poc_msb;
+
+ // For BLA picture types, POCmsb is set to 0.
+ if (s->nal_unit_type == NAL_BLA_W_LP ||
+ s->nal_unit_type == NAL_BLA_W_RADL ||
+ s->nal_unit_type == NAL_BLA_N_LP)
+ poc_msb = 0;
+
+ return poc_msb + poc_lsb;
+}
+
+int ff_hevc_frame_nb_refs(HEVCContext *s)
+{
+ int ret = 0;
+ int i;
+ const ShortTermRPS *rps = s->sh.short_term_rps;
+ LongTermRPS *long_rps = &s->sh.long_term_rps;
+
+ if (rps) {
+ for (i = 0; i < rps->num_negative_pics; i++)
+ ret += !!rps->used[i];
+ for (; i < rps->num_delta_pocs; i++)
+ ret += !!rps->used[i];
+ }
+
+ if (long_rps) {
+ for (i = 0; i < long_rps->nb_refs; i++)
+ ret += !!long_rps->used[i];
+ }
+ return ret;
+}
diff --git a/libavcodec/hevc_sei.c b/libavcodec/hevc_sei.c
new file mode 100644
index 0000000..8b84abf
--- /dev/null
+++ b/libavcodec/hevc_sei.c
@@ -0,0 +1,124 @@
+/*
+ * HEVC Supplementary Enhancement Information messages
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2012 - 2013 Gildas Cocherel
+ * Copyright (C) 2013 Vittorio Giovara
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "golomb.h"
+#include "hevc.h"
+
+static void decode_nal_sei_decoded_picture_hash(HEVCContext *s,
+ int payload_size)
+{
+ int cIdx, i;
+ GetBitContext *gb = &s->HEVClc.gb;
+ uint8_t hash_type = get_bits(gb, 8);
+
+ for (cIdx = 0; cIdx < 3; cIdx++) {
+ if (hash_type == 0) {
+ s->is_md5 = 1;
+ for (i = 0; i < 16; i++)
+ s->md5[cIdx][i] = get_bits(gb, 8);
+ } else if (hash_type == 1) {
+ // picture_crc = get_bits(gb, 16);
+ skip_bits(gb, 16);
+ } else if (hash_type == 2) {
+ // picture_checksum = get_bits(gb, 32);
+ skip_bits(gb, 32);
+ }
+ }
+}
+
+static void decode_nal_sei_frame_packing_arrangement(HEVCLocalContext *lc)
+{
+ GetBitContext *gb = &lc->gb;
+ int cancel, type, quincunx;
+
+ get_ue_golomb(gb); // frame_packing_arrangement_id
+ cancel = get_bits1(gb); // frame_packing_cancel_flag
+ if (cancel == 0) {
+ type = get_bits(gb, 7); // frame_packing_arrangement_type
+ quincunx = get_bits1(gb); // quincunx_sampling_flag
+ skip_bits(gb, 6); // content_interpretation_type
+
+ // the following skips spatial_flipping_flag frame0_flipped_flag
+ // field_views_flag current_frame_is_frame0_flag
+ // frame0_self_contained_flag frame1_self_contained_flag
+ skip_bits(gb, 6);
+
+ if (quincunx == 0 && type != 5)
+ skip_bits(gb, 16); // frame[01]_grid_position_[xy]
+ skip_bits(gb, 8); // frame_packing_arrangement_reserved_byte
+ skip_bits1(gb); // frame_packing_arrangement_persistance_flag
+ }
+ skip_bits1(gb); // upsampled_aspect_ratio_flag
+}
+
+static int decode_nal_sei_message(HEVCContext *s)
+{
+ GetBitContext *gb = &s->HEVClc.gb;
+
+ int payload_type = 0;
+ int payload_size = 0;
+ int byte = 0xFF;
+ av_log(s->avctx, AV_LOG_DEBUG, "Decoding SEI\n");
+
+ while (byte == 0xFF) {
+ byte = get_bits(gb, 8);
+ payload_type += byte;
+ }
+ byte = 0xFF;
+ while (byte == 0xFF) {
+ byte = get_bits(gb, 8);
+ payload_size += byte;
+ }
+ if (s->nal_unit_type == NAL_SEI_PREFIX) {
+ if (payload_type == 256)
+ decode_nal_sei_decoded_picture_hash(s, payload_size);
+ else if (payload_type == 45)
+ decode_nal_sei_frame_packing_arrangement(&s->HEVClc);
+ else {
+ av_log(s->avctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", payload_type);
+ skip_bits(gb, 8 * payload_size);
+ }
+ } else { /* nal_unit_type == NAL_SEI_SUFFIX */
+ if (payload_type == 132)
+ decode_nal_sei_decoded_picture_hash(s, payload_size);
+ else {
+ av_log(s->avctx, AV_LOG_DEBUG, "Skipped SUFFIX SEI %d\n", payload_type);
+ skip_bits(gb, 8 * payload_size);
+ }
+ }
+ return 0;
+}
+
+static int more_rbsp_data(GetBitContext *gb)
+{
+ return get_bits_left(gb) > 0 && show_bits(gb, 8) != 0x80;
+}
+
+int ff_hevc_decode_nal_sei(HEVCContext *s)
+{
+ do {
+ decode_nal_sei_message(s);
+ } while (more_rbsp_data(&s->HEVClc.gb));
+ return 0;
+}
diff --git a/libavcodec/hevcdsp.c b/libavcodec/hevcdsp.c
new file mode 100644
index 0000000..70de843
--- /dev/null
+++ b/libavcodec/hevcdsp.c
@@ -0,0 +1,190 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "hevc.h"
+
+static const int8_t transform[32][32] = {
+ { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
+ { 90, 90, 88, 85, 82, 78, 73, 67, 61, 54, 46, 38, 31, 22, 13, 4,
+ -4, -13, -22, -31, -38, -46, -54, -61, -67, -73, -78, -82, -85, -88, -90, -90 },
+ { 90, 87, 80, 70, 57, 43, 25, 9, -9, -25, -43, -57, -70, -80, -87, -90,
+ -90, -87, -80, -70, -57, -43, -25, -9, 9, 25, 43, 57, 70, 80, 87, 90 },
+ { 90, 82, 67, 46, 22, -4, -31, -54, -73, -85, -90, -88, -78, -61, -38, -13,
+ 13, 38, 61, 78, 88, 90, 85, 73, 54, 31, 4, -22, -46, -67, -82, -90 },
+ { 89, 75, 50, 18, -18, -50, -75, -89, -89, -75, -50, -18, 18, 50, 75, 89,
+ 89, 75, 50, 18, -18, -50, -75, -89, -89, -75, -50, -18, 18, 50, 75, 89 },
+ { 88, 67, 31, -13, -54, -82, -90, -78, -46, -4, 38, 73, 90, 85, 61, 22,
+ -22, -61, -85, -90, -73, -38, 4, 46, 78, 90, 82, 54, 13, -31, -67, -88 },
+ { 87, 57, 9, -43, -80, -90, -70, -25, 25, 70, 90, 80, 43, -9, -57, -87,
+ -87, -57, -9, 43, 80, 90, 70, 25, -25, -70, -90, -80, -43, 9, 57, 87 },
+ { 85, 46, -13, -67, -90, -73, -22, 38, 82, 88, 54, -4, -61, -90, -78, -31,
+ 31, 78, 90, 61, 4, -54, -88, -82, -38, 22, 73, 90, 67, 13, -46, -85 },
+ { 83, 36, -36, -83, -83, -36, 36, 83, 83, 36, -36, -83, -83, -36, 36, 83,
+ 83, 36, -36, -83, -83, -36, 36, 83, 83, 36, -36, -83, -83, -36, 36, 83 },
+ { 82, 22, -54, -90, -61, 13, 78, 85, 31, -46, -90, -67, 4, 73, 88, 38,
+ -38, -88, -73, -4, 67, 90, 46, -31, -85, -78, -13, 61, 90, 54, -22, -82 },
+ { 80, 9, -70, -87, -25, 57, 90, 43, -43, -90, -57, 25, 87, 70, -9, -80,
+ -80, -9, 70, 87, 25, -57, -90, -43, 43, 90, 57, -25, -87, -70, 9, 80 },
+ { 78, -4, -82, -73, 13, 85, 67, -22, -88, -61, 31, 90, 54, -38, -90, -46,
+ 46, 90, 38, -54, -90, -31, 61, 88, 22, -67, -85, -13, 73, 82, 4, -78 },
+ { 75, -18, -89, -50, 50, 89, 18, -75, -75, 18, 89, 50, -50, -89, -18, 75,
+ 75, -18, -89, -50, 50, 89, 18, -75, -75, 18, 89, 50, -50, -89, -18, 75 },
+ { 73, -31, -90, -22, 78, 67, -38, -90, -13, 82, 61, -46, -88, -4, 85, 54,
+ -54, -85, 4, 88, 46, -61, -82, 13, 90, 38, -67, -78, 22, 90, 31, -73 },
+ { 70, -43, -87, 9, 90, 25, -80, -57, 57, 80, -25, -90, -9, 87, 43, -70,
+ -70, 43, 87, -9, -90, -25, 80, 57, -57, -80, 25, 90, 9, -87, -43, 70 },
+ { 67, -54, -78, 38, 85, -22, -90, 4, 90, 13, -88, -31, 82, 46, -73, -61,
+ 61, 73, -46, -82, 31, 88, -13, -90, -4, 90, 22, -85, -38, 78, 54, -67 },
+ { 64, -64, -64, 64, 64, -64, -64, 64, 64, -64, -64, 64, 64, -64, -64, 64,
+ 64, -64, -64, 64, 64, -64, -64, 64, 64, -64, -64, 64, 64, -64, -64, 64 },
+ { 61, -73, -46, 82, 31, -88, -13, 90, -4, -90, 22, 85, -38, -78, 54, 67,
+ -67, -54, 78, 38, -85, -22, 90, 4, -90, 13, 88, -31, -82, 46, 73, -61 },
+ { 57, -80, -25, 90, -9, -87, 43, 70, -70, -43, 87, 9, -90, 25, 80, -57,
+ -57, 80, 25, -90, 9, 87, -43, -70, 70, 43, -87, -9, 90, -25, -80, 57 },
+ { 54, -85, -4, 88, -46, -61, 82, 13, -90, 38, 67, -78, -22, 90, -31, -73,
+ 73, 31, -90, 22, 78, -67, -38, 90, -13, -82, 61, 46, -88, 4, 85, -54 },
+ { 50, -89, 18, 75, -75, -18, 89, -50, -50, 89, -18, -75, 75, 18, -89, 50,
+ 50, -89, 18, 75, -75, -18, 89, -50, -50, 89, -18, -75, 75, 18, -89, 50 },
+ { 46, -90, 38, 54, -90, 31, 61, -88, 22, 67, -85, 13, 73, -82, 4, 78,
+ -78, -4, 82, -73, -13, 85, -67, -22, 88, -61, -31, 90, -54, -38, 90, -46 },
+ { 43, -90, 57, 25, -87, 70, 9, -80, 80, -9, -70, 87, -25, -57, 90, -43,
+ -43, 90, -57, -25, 87, -70, -9, 80, -80, 9, 70, -87, 25, 57, -90, 43 },
+ { 38, -88, 73, -4, -67, 90, -46, -31, 85, -78, 13, 61, -90, 54, 22, -82,
+ 82, -22, -54, 90, -61, -13, 78, -85, 31, 46, -90, 67, 4, -73, 88, -38 },
+ { 36, -83, 83, -36, -36, 83, -83, 36, 36, -83, 83, -36, -36, 83, -83, 36,
+ 36, -83, 83, -36, -36, 83, -83, 36, 36, -83, 83, -36, -36, 83, -83, 36 },
+ { 31, -78, 90, -61, 4, 54, -88, 82, -38, -22, 73, -90, 67, -13, -46, 85,
+ -85, 46, 13, -67, 90, -73, 22, 38, -82, 88, -54, -4, 61, -90, 78, -31 },
+ { 25, -70, 90, -80, 43, 9, -57, 87, -87, 57, -9, -43, 80, -90, 70, -25,
+ -25, 70, -90, 80, -43, -9, 57, -87, 87, -57, 9, 43, -80, 90, -70, 25 },
+ { 22, -61, 85, -90, 73, -38, -4, 46, -78, 90, -82, 54, -13, -31, 67, -88,
+ 88, -67, 31, 13, -54, 82, -90, 78, -46, 4, 38, -73, 90, -85, 61, -22 },
+ { 18, -50, 75, -89, 89, -75, 50, -18, -18, 50, -75, 89, -89, 75, -50, 18,
+ 18, -50, 75, -89, 89, -75, 50, -18, -18, 50, -75, 89, -89, 75, -50, 18 },
+ { 13, -38, 61, -78, 88, -90, 85, -73, 54, -31, 4, 22, -46, 67, -82, 90,
+ -90, 82, -67, 46, -22, -4, 31, -54, 73, -85, 90, -88, 78, -61, 38, -13 },
+ { 9, -25, 43, -57, 70, -80, 87, -90, 90, -87, 80, -70, 57, -43, 25, -9,
+ -9, 25, -43, 57, -70, 80, -87, 90, -90, 87, -80, 70, -57, 43, -25, 9 },
+ { 4, -13, 22, -31, 38, -46, 54, -61, 67, -73, 78, -82, 85, -88, 90, -90,
+ 90, -90, 88, -85, 82, -78, 73, -67, 61, -54, 46, -38, 31, -22, 13, -4 },
+};
+
+DECLARE_ALIGNED(16, const int8_t, ff_hevc_epel_filters[7][16]) = {
+ { -2, 58, 10, -2, -2, 58, 10, -2, -2, 58, 10, -2, -2, 58, 10, -2 },
+ { -4, 54, 16, -2, -4, 54, 16, -2, -4, 54, 16, -2, -4, 54, 16, -2 },
+ { -6, 46, 28, -4, -6, 46, 28, -4, -6, 46, 28, -4, -6, 46, 28, -4 },
+ { -4, 36, 36, -4, -4, 36, 36, -4, -4, 36, 36, -4, -4, 36, 36, -4 },
+ { -4, 28, 46, -6, -4, 28, 46, -6, -4, 28, 46, -6, -4, 28, 46, -6 },
+ { -2, 16, 54, -4, -2, 16, 54, -4, -2, 16, 54, -4, -2, 16, 54, -4 },
+ { -2, 10, 58, -2, -2, 10, 58, -2, -2, 10, 58, -2, -2, 10, 58, -2 },
+};
+
+#define BIT_DEPTH 8
+#include "hevcdsp_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 9
+#include "hevcdsp_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 10
+#include "hevcdsp_template.c"
+#undef BIT_DEPTH
+
+void ff_hevc_dsp_init(HEVCDSPContext *hevcdsp, int bit_depth)
+{
+#undef FUNC
+#define FUNC(a, depth) a ## _ ## depth
+
+#define HEVC_DSP(depth) \
+ hevcdsp->put_pcm = FUNC(put_pcm, depth); \
+ hevcdsp->transquant_bypass[0] = FUNC(transquant_bypass4x4, depth); \
+ hevcdsp->transquant_bypass[1] = FUNC(transquant_bypass8x8, depth); \
+ hevcdsp->transquant_bypass[2] = FUNC(transquant_bypass16x16, depth); \
+ hevcdsp->transquant_bypass[3] = FUNC(transquant_bypass32x32, depth); \
+ hevcdsp->transform_skip = FUNC(transform_skip, depth); \
+ hevcdsp->transform_4x4_luma_add = FUNC(transform_4x4_luma_add, depth); \
+ hevcdsp->transform_add[0] = FUNC(transform_4x4_add, depth); \
+ hevcdsp->transform_add[1] = FUNC(transform_8x8_add, depth); \
+ hevcdsp->transform_add[2] = FUNC(transform_16x16_add, depth); \
+ hevcdsp->transform_add[3] = FUNC(transform_32x32_add, depth); \
+ \
+ hevcdsp->sao_band_filter[0] = FUNC(sao_band_filter_0, depth); \
+ hevcdsp->sao_band_filter[1] = FUNC(sao_band_filter_1, depth); \
+ hevcdsp->sao_band_filter[2] = FUNC(sao_band_filter_2, depth); \
+ hevcdsp->sao_band_filter[3] = FUNC(sao_band_filter_3, depth); \
+ \
+ hevcdsp->sao_edge_filter[0] = FUNC(sao_edge_filter_0, depth); \
+ hevcdsp->sao_edge_filter[1] = FUNC(sao_edge_filter_1, depth); \
+ hevcdsp->sao_edge_filter[2] = FUNC(sao_edge_filter_2, depth); \
+ hevcdsp->sao_edge_filter[3] = FUNC(sao_edge_filter_3, depth); \
+ \
+ hevcdsp->put_hevc_qpel[0][0] = FUNC(put_hevc_qpel_pixels, depth); \
+ hevcdsp->put_hevc_qpel[0][1] = FUNC(put_hevc_qpel_h1, depth); \
+ hevcdsp->put_hevc_qpel[0][2] = FUNC(put_hevc_qpel_h2, depth); \
+ hevcdsp->put_hevc_qpel[0][3] = FUNC(put_hevc_qpel_h3, depth); \
+ hevcdsp->put_hevc_qpel[1][0] = FUNC(put_hevc_qpel_v1, depth); \
+ hevcdsp->put_hevc_qpel[1][1] = FUNC(put_hevc_qpel_h1v1, depth); \
+ hevcdsp->put_hevc_qpel[1][2] = FUNC(put_hevc_qpel_h2v1, depth); \
+ hevcdsp->put_hevc_qpel[1][3] = FUNC(put_hevc_qpel_h3v1, depth); \
+ hevcdsp->put_hevc_qpel[2][0] = FUNC(put_hevc_qpel_v2, depth); \
+ hevcdsp->put_hevc_qpel[2][1] = FUNC(put_hevc_qpel_h1v2, depth); \
+ hevcdsp->put_hevc_qpel[2][2] = FUNC(put_hevc_qpel_h2v2, depth); \
+ hevcdsp->put_hevc_qpel[2][3] = FUNC(put_hevc_qpel_h3v2, depth); \
+ hevcdsp->put_hevc_qpel[3][0] = FUNC(put_hevc_qpel_v3, depth); \
+ hevcdsp->put_hevc_qpel[3][1] = FUNC(put_hevc_qpel_h1v3, depth); \
+ hevcdsp->put_hevc_qpel[3][2] = FUNC(put_hevc_qpel_h2v3, depth); \
+ hevcdsp->put_hevc_qpel[3][3] = FUNC(put_hevc_qpel_h3v3, depth); \
+ \
+ hevcdsp->put_hevc_epel[0][0] = FUNC(put_hevc_epel_pixels, depth); \
+ hevcdsp->put_hevc_epel[0][1] = FUNC(put_hevc_epel_h, depth); \
+ hevcdsp->put_hevc_epel[1][0] = FUNC(put_hevc_epel_v, depth); \
+ hevcdsp->put_hevc_epel[1][1] = FUNC(put_hevc_epel_hv, depth); \
+ \
+ hevcdsp->put_unweighted_pred = FUNC(put_unweighted_pred, depth); \
+ hevcdsp->put_weighted_pred_avg = FUNC(put_weighted_pred_avg, depth); \
+ \
+ hevcdsp->weighted_pred = FUNC(weighted_pred, depth); \
+ hevcdsp->weighted_pred_avg = FUNC(weighted_pred_avg, depth); \
+ \
+ hevcdsp->hevc_h_loop_filter_luma = FUNC(hevc_h_loop_filter_luma, depth); \
+ hevcdsp->hevc_v_loop_filter_luma = FUNC(hevc_v_loop_filter_luma, depth); \
+ hevcdsp->hevc_h_loop_filter_chroma = FUNC(hevc_h_loop_filter_chroma, depth); \
+ hevcdsp->hevc_v_loop_filter_chroma = FUNC(hevc_v_loop_filter_chroma, depth); \
+ hevcdsp->hevc_h_loop_filter_luma_c = FUNC(hevc_h_loop_filter_luma, depth); \
+ hevcdsp->hevc_v_loop_filter_luma_c = FUNC(hevc_v_loop_filter_luma, depth); \
+ hevcdsp->hevc_h_loop_filter_chroma_c = FUNC(hevc_h_loop_filter_chroma, depth); \
+ hevcdsp->hevc_v_loop_filter_chroma_c = FUNC(hevc_v_loop_filter_chroma, depth);
+
+ switch (bit_depth) {
+ case 9:
+ HEVC_DSP(9);
+ break;
+ case 10:
+ HEVC_DSP(10);
+ break;
+ default:
+ HEVC_DSP(8);
+ break;
+ }
+}
diff --git a/libavcodec/hevcdsp_template.c b/libavcodec/hevcdsp_template.c
new file mode 100644
index 0000000..027b77c
--- /dev/null
+++ b/libavcodec/hevcdsp_template.c
@@ -0,0 +1,1340 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "get_bits.h"
+#include "hevc.h"
+
+#include "bit_depth_template.c"
+
+static void FUNC(put_pcm)(uint8_t *_dst, ptrdiff_t stride, int size,
+ GetBitContext *gb, int pcm_bit_depth)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+
+ stride /= sizeof(pixel);
+
+ for (y = 0; y < size; y++) {
+ for (x = 0; x < size; x++)
+ dst[x] = get_bits(gb, pcm_bit_depth) << (BIT_DEPTH - pcm_bit_depth);
+ dst += stride;
+ }
+}
+
+static void FUNC(transquant_bypass4x4)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+
+ stride /= sizeof(pixel);
+
+ for (y = 0; y < 4; y++) {
+ for (x = 0; x < 4; x++) {
+ dst[x] += *coeffs;
+ coeffs++;
+ }
+ dst += stride;
+ }
+}
+
+static void FUNC(transquant_bypass8x8)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+
+ stride /= sizeof(pixel);
+
+ for (y = 0; y < 8; y++) {
+ for (x = 0; x < 8; x++) {
+ dst[x] += *coeffs;
+ coeffs++;
+ }
+ dst += stride;
+ }
+}
+
+static void FUNC(transquant_bypass16x16)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+
+ stride /= sizeof(pixel);
+
+ for (y = 0; y < 16; y++) {
+ for (x = 0; x < 16; x++) {
+ dst[x] += *coeffs;
+ coeffs++;
+ }
+ dst += stride;
+ }
+}
+
+static void FUNC(transquant_bypass32x32)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+
+ stride /= sizeof(pixel);
+
+ for (y = 0; y < 32; y++) {
+ for (x = 0; x < 32; x++) {
+ dst[x] += *coeffs;
+ coeffs++;
+ }
+ dst += stride;
+ }
+}
+
+static void FUNC(transform_skip)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ pixel *dst = (pixel *)_dst;
+ int shift = 13 - BIT_DEPTH;
+#if BIT_DEPTH <= 13
+ int offset = 1 << (shift - 1);
+#else
+ int offset = 0;
+#endif
+ int x, y;
+
+ stride /= sizeof(pixel);
+
+ for (y = 0; y < 4 * 4; y += 4) {
+ for (x = 0; x < 4; x++)
+ dst[x] = av_clip_pixel(dst[x] + ((coeffs[y + x] + offset) >> shift));
+ dst += stride;
+ }
+}
+
+#define SET(dst, x) (dst) = (x)
+#define SCALE(dst, x) (dst) = av_clip_int16(((x) + add) >> shift)
+#define ADD_AND_SCALE(dst, x) \
+ (dst) = av_clip_pixel((dst) + av_clip_int16(((x) + add) >> shift))
+
+#define TR_4x4_LUMA(dst, src, step, assign) \
+ do { \
+ int c0 = src[0 * step] + src[2 * step]; \
+ int c1 = src[2 * step] + src[3 * step]; \
+ int c2 = src[0 * step] - src[3 * step]; \
+ int c3 = 74 * src[1 * step]; \
+ \
+ assign(dst[2 * step], 74 * (src[0 * step] - \
+ src[2 * step] + \
+ src[3 * step])); \
+ assign(dst[0 * step], 29 * c0 + 55 * c1 + c3); \
+ assign(dst[1 * step], 55 * c2 - 29 * c1 + c3); \
+ assign(dst[3 * step], 55 * c0 + 29 * c2 - c3); \
+ } while (0)
+
+static void FUNC(transform_4x4_luma_add)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int i;
+ pixel *dst = (pixel *)_dst;
+ int shift = 7;
+ int add = 1 << (shift - 1);
+ int16_t *src = coeffs;
+
+ stride /= sizeof(pixel);
+
+ for (i = 0; i < 4; i++) {
+ TR_4x4_LUMA(src, src, 4, SCALE);
+ src++;
+ }
+
+ shift = 20 - BIT_DEPTH;
+ add = 1 << (shift - 1);
+ for (i = 0; i < 4; i++) {
+ TR_4x4_LUMA(dst, coeffs, 1, ADD_AND_SCALE);
+ coeffs += 4;
+ dst += stride;
+ }
+}
+
+#undef TR_4x4_LUMA
+
+#define TR_4(dst, src, dstep, sstep, assign) \
+ do { \
+ const int e0 = transform[8 * 0][0] * src[0 * sstep] + \
+ transform[8 * 2][0] * src[2 * sstep]; \
+ const int e1 = transform[8 * 0][1] * src[0 * sstep] + \
+ transform[8 * 2][1] * src[2 * sstep]; \
+ const int o0 = transform[8 * 1][0] * src[1 * sstep] + \
+ transform[8 * 3][0] * src[3 * sstep]; \
+ const int o1 = transform[8 * 1][1] * src[1 * sstep] + \
+ transform[8 * 3][1] * src[3 * sstep]; \
+ \
+ assign(dst[0 * dstep], e0 + o0); \
+ assign(dst[1 * dstep], e1 + o1); \
+ assign(dst[2 * dstep], e1 - o1); \
+ assign(dst[3 * dstep], e0 - o0); \
+ } while (0)
+
+static void FUNC(transform_4x4_add)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int i;
+ pixel *dst = (pixel *)_dst;
+ int shift = 7;
+ int add = 1 << (shift - 1);
+ int16_t *src = coeffs;
+
+ stride /= sizeof(pixel);
+
+ for (i = 0; i < 4; i++) {
+ TR_4(src, src, 4, 4, SCALE);
+ src++;
+ }
+
+ shift = 20 - BIT_DEPTH;
+ add = 1 << (shift - 1);
+ for (i = 0; i < 4; i++) {
+ TR_4(dst, coeffs, 1, 1, ADD_AND_SCALE);
+ coeffs += 4;
+ dst += stride;
+ }
+}
+
+#define TR_8(dst, src, dstep, sstep, assign) \
+ do { \
+ int i, j; \
+ int e_8[4]; \
+ int o_8[4] = { 0 }; \
+ for (i = 0; i < 4; i++) \
+ for (j = 1; j < 8; j += 2) \
+ o_8[i] += transform[4 * j][i] * src[j * sstep]; \
+ TR_4(e_8, src, 1, 2 * sstep, SET); \
+ \
+ for (i = 0; i < 4; i++) { \
+ assign(dst[i * dstep], e_8[i] + o_8[i]); \
+ assign(dst[(7 - i) * dstep], e_8[i] - o_8[i]); \
+ } \
+ } while (0)
+
+#define TR_16(dst, src, dstep, sstep, assign) \
+ do { \
+ int i, j; \
+ int e_16[8]; \
+ int o_16[8] = { 0 }; \
+ for (i = 0; i < 8; i++) \
+ for (j = 1; j < 16; j += 2) \
+ o_16[i] += transform[2 * j][i] * src[j * sstep]; \
+ TR_8(e_16, src, 1, 2 * sstep, SET); \
+ \
+ for (i = 0; i < 8; i++) { \
+ assign(dst[i * dstep], e_16[i] + o_16[i]); \
+ assign(dst[(15 - i) * dstep], e_16[i] - o_16[i]); \
+ } \
+ } while (0)
+
+#define TR_32(dst, src, dstep, sstep, assign) \
+ do { \
+ int i, j; \
+ int e_32[16]; \
+ int o_32[16] = { 0 }; \
+ for (i = 0; i < 16; i++) \
+ for (j = 1; j < 32; j += 2) \
+ o_32[i] += transform[j][i] * src[j * sstep]; \
+ TR_16(e_32, src, 1, 2 * sstep, SET); \
+ \
+ for (i = 0; i < 16; i++) { \
+ assign(dst[i * dstep], e_32[i] + o_32[i]); \
+ assign(dst[(31 - i) * dstep], e_32[i] - o_32[i]); \
+ } \
+ } while (0)
+
+
+
+static void FUNC(transform_8x8_add)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int i;
+ pixel *dst = (pixel *)_dst;
+ int shift = 7;
+ int add = 1 << (shift - 1);
+ int16_t *src = coeffs;
+
+ stride /= sizeof(pixel);
+
+ for (i = 0; i < 8; i++) {
+ TR_8(src, src, 8, 8, SCALE);
+ src++;
+ }
+
+ shift = 20 - BIT_DEPTH;
+ add = 1 << (shift - 1);
+ for (i = 0; i < 8; i++) {
+ TR_8(dst, coeffs, 1, 1, ADD_AND_SCALE);
+ coeffs += 8;
+ dst += stride;
+ }
+}
+
+static void FUNC(transform_16x16_add)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int i;
+ pixel *dst = (pixel *)_dst;
+ int shift = 7;
+ int add = 1 << (shift - 1);
+ int16_t *src = coeffs;
+
+ stride /= sizeof(pixel);
+
+ for (i = 0; i < 16; i++) {
+ TR_16(src, src, 16, 16, SCALE);
+ src++;
+ }
+
+ shift = 20 - BIT_DEPTH;
+ add = 1 << (shift - 1);
+ for (i = 0; i < 16; i++) {
+ TR_16(dst, coeffs, 1, 1, ADD_AND_SCALE);
+ coeffs += 16;
+ dst += stride;
+ }
+}
+
+static void FUNC(transform_32x32_add)(uint8_t *_dst, int16_t *coeffs,
+ ptrdiff_t stride)
+{
+ int i;
+ pixel *dst = (pixel *)_dst;
+ int shift = 7;
+ int add = 1 << (shift - 1);
+ int16_t *src = coeffs;
+
+ stride /= sizeof(pixel);
+
+ for (i = 0; i < 32; i++) {
+ TR_32(src, src, 32, 32, SCALE);
+ src++;
+ }
+ src = coeffs;
+ shift = 20 - BIT_DEPTH;
+ add = 1 << (shift - 1);
+ for (i = 0; i < 32; i++) {
+ TR_32(dst, coeffs, 1, 1, ADD_AND_SCALE);
+ coeffs += 32;
+ dst += stride;
+ }
+}
+
+static void FUNC(sao_band_filter)(uint8_t *_dst, uint8_t *_src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int width, int height,
+ int c_idx, int class)
+{
+ pixel *dst = (pixel *)_dst;
+ pixel *src = (pixel *)_src;
+ int offset_table[32] = { 0 };
+ int k, y, x;
+ int chroma = !!c_idx;
+ int shift = BIT_DEPTH - 5;
+ int *sao_offset_val = sao->offset_val[c_idx];
+ int sao_left_class = sao->band_position[c_idx];
+ int init_y = 0, init_x = 0;
+
+ stride /= sizeof(pixel);
+
+ switch (class) {
+ case 0:
+ if (!borders[2])
+ width -= (8 >> chroma) + 2;
+ if (!borders[3])
+ height -= (4 >> chroma) + 2;
+ break;
+ case 1:
+ init_y = -(4 >> chroma) - 2;
+ if (!borders[2])
+ width -= (8 >> chroma) + 2;
+ height = (4 >> chroma) + 2;
+ break;
+ case 2:
+ init_x = -(8 >> chroma) - 2;
+ width = (8 >> chroma) + 2;
+ if (!borders[3])
+ height -= (4 >> chroma) + 2;
+ break;
+ case 3:
+ init_y = -(4 >> chroma) - 2;
+ init_x = -(8 >> chroma) - 2;
+ width = (8 >> chroma) + 2;
+ height = (4 >> chroma) + 2;
+ break;
+ }
+
+ dst = dst + (init_y * stride + init_x);
+ src = src + (init_y * stride + init_x);
+ for (k = 0; k < 4; k++)
+ offset_table[(k + sao_left_class) & 31] = sao_offset_val[k + 1];
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = av_clip_pixel(src[x] + offset_table[av_clip_pixel(src[x] >> shift)]);
+ dst += stride;
+ src += stride;
+ }
+}
+
+static void FUNC(sao_band_filter_0)(uint8_t *dst, uint8_t *src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int width, int height,
+ int c_idx)
+{
+ FUNC(sao_band_filter)(dst, src, stride, sao, borders,
+ width, height, c_idx, 0);
+}
+
+static void FUNC(sao_band_filter_1)(uint8_t *dst, uint8_t *src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int width, int height,
+ int c_idx)
+{
+ FUNC(sao_band_filter)(dst, src, stride, sao, borders,
+ width, height, c_idx, 1);
+}
+
+static void FUNC(sao_band_filter_2)(uint8_t *dst, uint8_t *src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int width, int height,
+ int c_idx)
+{
+ FUNC(sao_band_filter)(dst, src, stride, sao, borders,
+ width, height, c_idx, 2);
+}
+
+static void FUNC(sao_band_filter_3)(uint8_t *_dst, uint8_t *_src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int width, int height,
+ int c_idx)
+{
+ FUNC(sao_band_filter)(_dst, _src, stride, sao, borders,
+ width, height, c_idx, 3);
+}
+
+static void FUNC(sao_edge_filter_0)(uint8_t *_dst, uint8_t *_src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int _width, int _height,
+ int c_idx, uint8_t vert_edge,
+ uint8_t horiz_edge, uint8_t diag_edge)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+ pixel *src = (pixel *)_src;
+ int chroma = !!c_idx;
+ int *sao_offset_val = sao->offset_val[c_idx];
+ int sao_eo_class = sao->eo_class[c_idx];
+ int init_x = 0, init_y = 0, width = _width, height = _height;
+
+ static const int8_t pos[4][2][2] = {
+ { { -1, 0 }, { 1, 0 } }, // horizontal
+ { { 0, -1 }, { 0, 1 } }, // vertical
+ { { -1, -1 }, { 1, 1 } }, // 45 degree
+ { { 1, -1 }, { -1, 1 } }, // 135 degree
+ };
+ static const uint8_t edge_idx[] = { 1, 2, 0, 3, 4 };
+
+#define CMP(a, b) ((a) > (b) ? 1 : ((a) == (b) ? 0 : -1))
+
+ stride /= sizeof(pixel);
+
+ if (!borders[2])
+ width -= (8 >> chroma) + 2;
+ if (!borders[3])
+ height -= (4 >> chroma) + 2;
+
+ dst = dst + (init_y * stride + init_x);
+ src = src + (init_y * stride + init_x);
+ init_y = init_x = 0;
+ if (sao_eo_class != SAO_EO_VERT) {
+ if (borders[0]) {
+ int offset_val = sao_offset_val[0];
+ int y_stride = 0;
+ for (y = 0; y < height; y++) {
+ dst[y_stride] = av_clip_pixel(src[y_stride] + offset_val);
+ y_stride += stride;
+ }
+ init_x = 1;
+ }
+ if (borders[2]) {
+ int offset_val = sao_offset_val[0];
+ int x_stride = width - 1;
+ for (x = 0; x < height; x++) {
+ dst[x_stride] = av_clip_pixel(src[x_stride] + offset_val);
+ x_stride += stride;
+ }
+ width--;
+ }
+ }
+ if (sao_eo_class != SAO_EO_HORIZ) {
+ if (borders[1]) {
+ int offset_val = sao_offset_val[0];
+ for (x = init_x; x < width; x++)
+ dst[x] = av_clip_pixel(src[x] + offset_val);
+ init_y = 1;
+ }
+ if (borders[3]) {
+ int offset_val = sao_offset_val[0];
+ int y_stride = stride * (height - 1);
+ for (x = init_x; x < width; x++)
+ dst[x + y_stride] = av_clip_pixel(src[x + y_stride] + offset_val);
+ height--;
+ }
+ }
+ {
+ int y_stride = init_y * stride;
+ int pos_0_0 = pos[sao_eo_class][0][0];
+ int pos_0_1 = pos[sao_eo_class][0][1];
+ int pos_1_0 = pos[sao_eo_class][1][0];
+ int pos_1_1 = pos[sao_eo_class][1][1];
+
+ int y_stride_0_1 = (init_y + pos_0_1) * stride;
+ int y_stride_1_1 = (init_y + pos_1_1) * stride;
+ for (y = init_y; y < height; y++) {
+ for (x = init_x; x < width; x++) {
+ int diff0 = CMP(src[x + y_stride], src[x + pos_0_0 + y_stride_0_1]);
+ int diff1 = CMP(src[x + y_stride], src[x + pos_1_0 + y_stride_1_1]);
+ int offset_val = edge_idx[2 + diff0 + diff1];
+ dst[x + y_stride] = av_clip_pixel(src[x + y_stride] + sao_offset_val[offset_val]);
+ }
+ y_stride += stride;
+ y_stride_0_1 += stride;
+ y_stride_1_1 += stride;
+ }
+ }
+
+ {
+ // Restore pixels that can't be modified
+ int save_upper_left = !diag_edge && sao_eo_class == SAO_EO_135D && !borders[0] && !borders[1];
+ if (vert_edge && sao_eo_class != SAO_EO_VERT)
+ for (y = init_y+save_upper_left; y< height; y++)
+ dst[y*stride] = src[y*stride];
+ if(horiz_edge && sao_eo_class != SAO_EO_HORIZ)
+ for(x = init_x+save_upper_left; x<width; x++)
+ dst[x] = src[x];
+ if(diag_edge && sao_eo_class == SAO_EO_135D)
+ dst[0] = src[0];
+ }
+
+#undef CMP
+}
+
+static void FUNC(sao_edge_filter_1)(uint8_t *_dst, uint8_t *_src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int _width, int _height,
+ int c_idx, uint8_t vert_edge,
+ uint8_t horiz_edge, uint8_t diag_edge)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+ pixel *src = (pixel *)_src;
+ int chroma = !!c_idx;
+ int *sao_offset_val = sao->offset_val[c_idx];
+ int sao_eo_class = sao->eo_class[c_idx];
+ int init_x = 0, init_y = 0, width = _width, height = _height;
+
+ static const int8_t pos[4][2][2] = {
+ { { -1, 0 }, { 1, 0 } }, // horizontal
+ { { 0, -1 }, { 0, 1 } }, // vertical
+ { { -1, -1 }, { 1, 1 } }, // 45 degree
+ { { 1, -1 }, { -1, 1 } }, // 135 degree
+ };
+ static const uint8_t edge_idx[] = { 1, 2, 0, 3, 4 };
+
+#define CMP(a, b) ((a) > (b) ? 1 : ((a) == (b) ? 0 : -1))
+
+ stride /= sizeof(pixel);
+
+ init_y = -(4 >> chroma) - 2;
+ if (!borders[2])
+ width -= (8 >> chroma) + 2;
+ height = (4 >> chroma) + 2;
+
+ dst = dst + (init_y * stride + init_x);
+ src = src + (init_y * stride + init_x);
+ init_y = init_x = 0;
+ if (sao_eo_class != SAO_EO_VERT) {
+ if (borders[0]) {
+ int offset_val = sao_offset_val[0];
+ int y_stride = 0;
+ for (y = 0; y < height; y++) {
+ dst[y_stride] = av_clip_pixel(src[y_stride] + offset_val);
+ y_stride += stride;
+ }
+ init_x = 1;
+ }
+ if (borders[2]) {
+ int offset_val = sao_offset_val[0];
+ int x_stride = width - 1;
+ for (x = 0; x < height; x++) {
+ dst[x_stride] = av_clip_pixel(src[x_stride] + offset_val);
+ x_stride += stride;
+ }
+ width--;
+ }
+ }
+ {
+ int y_stride = init_y * stride;
+ int pos_0_0 = pos[sao_eo_class][0][0];
+ int pos_0_1 = pos[sao_eo_class][0][1];
+ int pos_1_0 = pos[sao_eo_class][1][0];
+ int pos_1_1 = pos[sao_eo_class][1][1];
+
+ int y_stride_0_1 = (init_y + pos_0_1) * stride;
+ int y_stride_1_1 = (init_y + pos_1_1) * stride;
+ for (y = init_y; y < height; y++) {
+ for (x = init_x; x < width; x++) {
+ int diff0 = CMP(src[x + y_stride], src[x + pos_0_0 + y_stride_0_1]);
+ int diff1 = CMP(src[x + y_stride], src[x + pos_1_0 + y_stride_1_1]);
+ int offset_val = edge_idx[2 + diff0 + diff1];
+ dst[x + y_stride] = av_clip_pixel(src[x + y_stride] + sao_offset_val[offset_val]);
+ }
+ y_stride += stride;
+ y_stride_0_1 += stride;
+ y_stride_1_1 += stride;
+ }
+ }
+
+ {
+ // Restore pixels that can't be modified
+ int save_lower_left = !diag_edge && sao_eo_class == SAO_EO_45D && !borders[0];
+ if(vert_edge && sao_eo_class != SAO_EO_VERT)
+ for(y = init_y; y< height-save_lower_left; y++)
+ dst[y*stride] = src[y*stride];
+ if(horiz_edge && sao_eo_class != SAO_EO_HORIZ)
+ for(x = init_x+save_lower_left; x<width; x++)
+ dst[(height-1)*stride+x] = src[(height-1)*stride+x];
+ if(diag_edge && sao_eo_class == SAO_EO_45D)
+ dst[stride*(height-1)] = src[stride*(height-1)];
+ }
+
+#undef CMP
+}
+
+static void FUNC(sao_edge_filter_2)(uint8_t *_dst, uint8_t *_src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int _width, int _height,
+ int c_idx, uint8_t vert_edge,
+ uint8_t horiz_edge, uint8_t diag_edge)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+ pixel *src = (pixel *)_src;
+ int chroma = !!c_idx;
+ int *sao_offset_val = sao->offset_val[c_idx];
+ int sao_eo_class = sao->eo_class[c_idx];
+ int init_x = 0, init_y = 0, width = _width, height = _height;
+
+ static const int8_t pos[4][2][2] = {
+ { { -1, 0 }, { 1, 0 } }, // horizontal
+ { { 0, -1 }, { 0, 1 } }, // vertical
+ { { -1, -1 }, { 1, 1 } }, // 45 degree
+ { { 1, -1 }, { -1, 1 } }, // 135 degree
+ };
+ static const uint8_t edge_idx[] = { 1, 2, 0, 3, 4 };
+
+#define CMP(a, b) ((a) > (b) ? 1 : ((a) == (b) ? 0 : -1))
+
+ stride /= sizeof(pixel);
+
+ init_x = -(8 >> chroma) - 2;
+ width = (8 >> chroma) + 2;
+ if (!borders[3])
+ height -= (4 >> chroma) + 2;
+
+ dst = dst + (init_y * stride + init_x);
+ src = src + (init_y * stride + init_x);
+ init_y = init_x = 0;
+ if (sao_eo_class != SAO_EO_HORIZ) {
+ if (borders[1]) {
+ int offset_val = sao_offset_val[0];
+ for (x = init_x; x < width; x++)
+ dst[x] = av_clip_pixel(src[x] + offset_val);
+ init_y = 1;
+ }
+ if (borders[3]) {
+ int offset_val = sao_offset_val[0];
+ int y_stride = stride * (height - 1);
+ for (x = init_x; x < width; x++)
+ dst[x + y_stride] = av_clip_pixel(src[x + y_stride] + offset_val);
+ height--;
+ }
+ }
+ {
+ int y_stride = init_y * stride;
+ int pos_0_0 = pos[sao_eo_class][0][0];
+ int pos_0_1 = pos[sao_eo_class][0][1];
+ int pos_1_0 = pos[sao_eo_class][1][0];
+ int pos_1_1 = pos[sao_eo_class][1][1];
+
+ int y_stride_0_1 = (init_y + pos_0_1) * stride;
+ int y_stride_1_1 = (init_y + pos_1_1) * stride;
+ for (y = init_y; y < height; y++) {
+ for (x = init_x; x < width; x++) {
+ int diff0 = CMP(src[x + y_stride], src[x + pos_0_0 + y_stride_0_1]);
+ int diff1 = CMP(src[x + y_stride], src[x + pos_1_0 + y_stride_1_1]);
+ int offset_val = edge_idx[2 + diff0 + diff1];
+ dst[x + y_stride] = av_clip_pixel(src[x + y_stride] + sao_offset_val[offset_val]);
+ }
+ y_stride += stride;
+ y_stride_0_1 += stride;
+ y_stride_1_1 += stride;
+ }
+ }
+
+ {
+ // Restore pixels that can't be modified
+ int save_upper_right = !diag_edge && sao_eo_class == SAO_EO_45D && !borders[1];
+ if(vert_edge && sao_eo_class != SAO_EO_VERT)
+ for(y = init_y+save_upper_right; y< height; y++)
+ dst[y*stride+width-1] = src[y*stride+width-1];
+ if(horiz_edge && sao_eo_class != SAO_EO_HORIZ)
+ for(x = init_x; x<width-save_upper_right; x++)
+ dst[x] = src[x];
+ if(diag_edge && sao_eo_class == SAO_EO_45D)
+ dst[width-1] = src[width-1];
+ }
+#undef CMP
+}
+
+static void FUNC(sao_edge_filter_3)(uint8_t *_dst, uint8_t *_src,
+ ptrdiff_t stride, SAOParams *sao,
+ int *borders, int _width, int _height,
+ int c_idx, uint8_t vert_edge,
+ uint8_t horiz_edge, uint8_t diag_edge)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+ pixel *src = (pixel *)_src;
+ int chroma = !!c_idx;
+ int *sao_offset_val = sao->offset_val[c_idx];
+ int sao_eo_class = sao->eo_class[c_idx];
+ int init_x = 0, init_y = 0, width = _width, height = _height;
+
+ static const int8_t pos[4][2][2] = {
+ { { -1, 0 }, { 1, 0 } }, // horizontal
+ { { 0, -1 }, { 0, 1 } }, // vertical
+ { { -1, -1 }, { 1, 1 } }, // 45 degree
+ { { 1, -1 }, { -1, 1 } }, // 135 degree
+ };
+ static const uint8_t edge_idx[] = { 1, 2, 0, 3, 4 };
+
+#define CMP(a, b) ((a) > (b) ? 1 : ((a) == (b) ? 0 : -1))
+
+ stride /= sizeof(pixel);
+
+ init_y = -(4 >> chroma) - 2;
+ init_x = -(8 >> chroma) - 2;
+ width = (8 >> chroma) + 2;
+ height = (4 >> chroma) + 2;
+
+
+ dst = dst + (init_y * stride + init_x);
+ src = src + (init_y * stride + init_x);
+ init_y = init_x = 0;
+
+ {
+ int y_stride = init_y * stride;
+ int pos_0_0 = pos[sao_eo_class][0][0];
+ int pos_0_1 = pos[sao_eo_class][0][1];
+ int pos_1_0 = pos[sao_eo_class][1][0];
+ int pos_1_1 = pos[sao_eo_class][1][1];
+
+ int y_stride_0_1 = (init_y + pos_0_1) * stride;
+ int y_stride_1_1 = (init_y + pos_1_1) * stride;
+
+ for (y = init_y; y < height; y++) {
+ for (x = init_x; x < width; x++) {
+ int diff0 = CMP(src[x + y_stride], src[x + pos_0_0 + y_stride_0_1]);
+ int diff1 = CMP(src[x + y_stride], src[x + pos_1_0 + y_stride_1_1]);
+ int offset_val = edge_idx[2 + diff0 + diff1];
+ dst[x + y_stride] = av_clip_pixel(src[x + y_stride] + sao_offset_val[offset_val]);
+ }
+ y_stride += stride;
+ y_stride_0_1 += stride;
+ y_stride_1_1 += stride;
+ }
+ }
+
+ {
+ // Restore pixels that can't be modified
+ int save_lower_right = !diag_edge && sao_eo_class == SAO_EO_135D;
+ if(vert_edge && sao_eo_class != SAO_EO_VERT)
+ for(y = init_y; y< height-save_lower_right; y++)
+ dst[y*stride+width-1] = src[y*stride+width-1];
+ if(horiz_edge && sao_eo_class != SAO_EO_HORIZ)
+ for(x = init_x; x<width-save_lower_right; x++)
+ dst[(height-1)*stride+x] = src[(height-1)*stride+x];
+ if(diag_edge && sao_eo_class == SAO_EO_135D)
+ dst[stride*(height-1)+width-1] = src[stride*(height-1)+width-1];
+ }
+#undef CMP
+}
+
+#undef SET
+#undef SCALE
+#undef ADD_AND_SCALE
+#undef TR_4
+#undef TR_8
+#undef TR_16
+#undef TR_32
+
+static void FUNC(put_hevc_qpel_pixels)(int16_t *dst, ptrdiff_t dststride,
+ uint8_t *_src, ptrdiff_t _srcstride,
+ int width, int height, int16_t* mcbuffer)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel);
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = src[x] << (14 - BIT_DEPTH);
+ src += srcstride;
+ dst += dststride;
+ }
+}
+
+#define QPEL_FILTER_1(src, stride) \
+ (1 * -src[x - 3 * stride] + \
+ 4 * src[x - 2 * stride] - \
+ 10 * src[x - stride] + \
+ 58 * src[x] + \
+ 17 * src[x + stride] - \
+ 5 * src[x + 2 * stride] + \
+ 1 * src[x + 3 * stride])
+
+#define QPEL_FILTER_2(src, stride) \
+ (1 * -src[x - 3 * stride] + \
+ 4 * src[x - 2 * stride] - \
+ 11 * src[x - stride] + \
+ 40 * src[x] + \
+ 40 * src[x + stride] - \
+ 11 * src[x + 2 * stride] + \
+ 4 * src[x + 3 * stride] - \
+ 1 * src[x + 4 * stride])
+
+#define QPEL_FILTER_3(src, stride) \
+ (1 * src[x - 2 * stride] - \
+ 5 * src[x - stride] + \
+ 17 * src[x] + \
+ 58 * src[x + stride] - \
+ 10 * src[x + 2 * stride] + \
+ 4 * src[x + 3 * stride] - \
+ 1 * src[x + 4 * stride])
+
+
+#define PUT_HEVC_QPEL_H(H) \
+static void FUNC(put_hevc_qpel_h ## H)(int16_t *dst, ptrdiff_t dststride, \
+ uint8_t *_src, ptrdiff_t _srcstride, \
+ int width, int height, \
+ int16_t* mcbuffer) \
+{ \
+ int x, y; \
+ pixel *src = (pixel*)_src; \
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel); \
+ \
+ for (y = 0; y < height; y++) { \
+ for (x = 0; x < width; x++) \
+ dst[x] = QPEL_FILTER_ ## H(src, 1) >> (BIT_DEPTH - 8); \
+ src += srcstride; \
+ dst += dststride; \
+ } \
+}
+
+#define PUT_HEVC_QPEL_V(V) \
+static void FUNC(put_hevc_qpel_v ## V)(int16_t *dst, ptrdiff_t dststride, \
+ uint8_t *_src, ptrdiff_t _srcstride, \
+ int width, int height, \
+ int16_t* mcbuffer) \
+{ \
+ int x, y; \
+ pixel *src = (pixel*)_src; \
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel); \
+ \
+ for (y = 0; y < height; y++) { \
+ for (x = 0; x < width; x++) \
+ dst[x] = QPEL_FILTER_ ## V(src, srcstride) >> (BIT_DEPTH - 8); \
+ src += srcstride; \
+ dst += dststride; \
+ } \
+}
+
+#define PUT_HEVC_QPEL_HV(H, V) \
+static void FUNC(put_hevc_qpel_h ## H ## v ## V)(int16_t *dst, \
+ ptrdiff_t dststride, \
+ uint8_t *_src, \
+ ptrdiff_t _srcstride, \
+ int width, int height, \
+ int16_t* mcbuffer) \
+{ \
+ int x, y; \
+ pixel *src = (pixel*)_src; \
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel); \
+ \
+ int16_t tmp_array[(MAX_PB_SIZE + 7) * MAX_PB_SIZE]; \
+ int16_t *tmp = tmp_array; \
+ \
+ src -= ff_hevc_qpel_extra_before[V] * srcstride; \
+ \
+ for (y = 0; y < height + ff_hevc_qpel_extra[V]; y++) { \
+ for (x = 0; x < width; x++) \
+ tmp[x] = QPEL_FILTER_ ## H(src, 1) >> (BIT_DEPTH - 8); \
+ src += srcstride; \
+ tmp += MAX_PB_SIZE; \
+ } \
+ \
+ tmp = tmp_array + ff_hevc_qpel_extra_before[V] * MAX_PB_SIZE; \
+ \
+ for (y = 0; y < height; y++) { \
+ for (x = 0; x < width; x++) \
+ dst[x] = QPEL_FILTER_ ## V(tmp, MAX_PB_SIZE) >> 6; \
+ tmp += MAX_PB_SIZE; \
+ dst += dststride; \
+ } \
+}
+
+PUT_HEVC_QPEL_H(1)
+PUT_HEVC_QPEL_H(2)
+PUT_HEVC_QPEL_H(3)
+PUT_HEVC_QPEL_V(1)
+PUT_HEVC_QPEL_V(2)
+PUT_HEVC_QPEL_V(3)
+PUT_HEVC_QPEL_HV(1, 1)
+PUT_HEVC_QPEL_HV(1, 2)
+PUT_HEVC_QPEL_HV(1, 3)
+PUT_HEVC_QPEL_HV(2, 1)
+PUT_HEVC_QPEL_HV(2, 2)
+PUT_HEVC_QPEL_HV(2, 3)
+PUT_HEVC_QPEL_HV(3, 1)
+PUT_HEVC_QPEL_HV(3, 2)
+PUT_HEVC_QPEL_HV(3, 3)
+
+static void FUNC(put_hevc_epel_pixels)(int16_t *dst, ptrdiff_t dststride,
+ uint8_t *_src, ptrdiff_t _srcstride,
+ int width, int height, int mx, int my,
+ int16_t* mcbuffer)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel);
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = src[x] << (14 - BIT_DEPTH);
+ src += srcstride;
+ dst += dststride;
+ }
+}
+
+#define EPEL_FILTER(src, stride) \
+ (filter_0 * src[x - stride] + \
+ filter_1 * src[x] + \
+ filter_2 * src[x + stride] + \
+ filter_3 * src[x + 2 * stride])
+
+static void FUNC(put_hevc_epel_h)(int16_t *dst, ptrdiff_t dststride,
+ uint8_t *_src, ptrdiff_t _srcstride,
+ int width, int height, int mx, int my,
+ int16_t* mcbuffer)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel);
+ const int8_t *filter = ff_hevc_epel_filters[mx - 1];
+ int8_t filter_0 = filter[0];
+ int8_t filter_1 = filter[1];
+ int8_t filter_2 = filter[2];
+ int8_t filter_3 = filter[3];
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = EPEL_FILTER(src, 1) >> (BIT_DEPTH - 8);
+ src += srcstride;
+ dst += dststride;
+ }
+}
+
+static void FUNC(put_hevc_epel_v)(int16_t *dst, ptrdiff_t dststride,
+ uint8_t *_src, ptrdiff_t _srcstride,
+ int width, int height, int mx, int my,
+ int16_t* mcbuffer)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel);
+ const int8_t *filter = ff_hevc_epel_filters[my - 1];
+ int8_t filter_0 = filter[0];
+ int8_t filter_1 = filter[1];
+ int8_t filter_2 = filter[2];
+ int8_t filter_3 = filter[3];
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = EPEL_FILTER(src, srcstride) >> (BIT_DEPTH - 8);
+ src += srcstride;
+ dst += dststride;
+ }
+}
+
+static void FUNC(put_hevc_epel_hv)(int16_t *dst, ptrdiff_t dststride,
+ uint8_t *_src, ptrdiff_t _srcstride,
+ int width, int height, int mx, int my,
+ int16_t* mcbuffer)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ ptrdiff_t srcstride = _srcstride / sizeof(pixel);
+ const int8_t *filter_h = ff_hevc_epel_filters[mx - 1];
+ const int8_t *filter_v = ff_hevc_epel_filters[my - 1];
+ int8_t filter_0 = filter_h[0];
+ int8_t filter_1 = filter_h[1];
+ int8_t filter_2 = filter_h[2];
+ int8_t filter_3 = filter_h[3];
+ int16_t tmp_array[(MAX_PB_SIZE + 3) * MAX_PB_SIZE];
+ int16_t *tmp = tmp_array;
+
+ src -= EPEL_EXTRA_BEFORE * srcstride;
+
+ for (y = 0; y < height + EPEL_EXTRA; y++) {
+ for (x = 0; x < width; x++)
+ tmp[x] = EPEL_FILTER(src, 1) >> (BIT_DEPTH - 8);
+ src += srcstride;
+ tmp += MAX_PB_SIZE;
+ }
+
+ tmp = tmp_array + EPEL_EXTRA_BEFORE * MAX_PB_SIZE;
+ filter_0 = filter_v[0];
+ filter_1 = filter_v[1];
+ filter_2 = filter_v[2];
+ filter_3 = filter_v[3];
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = EPEL_FILTER(tmp, MAX_PB_SIZE) >> 6;
+ tmp += MAX_PB_SIZE;
+ dst += dststride;
+ }
+}
+
+static void FUNC(put_unweighted_pred)(uint8_t *_dst, ptrdiff_t _dststride,
+ int16_t *src, ptrdiff_t srcstride,
+ int width, int height)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+ ptrdiff_t dststride = _dststride / sizeof(pixel);
+
+ int shift = 14 - BIT_DEPTH;
+#if BIT_DEPTH < 14
+ int offset = 1 << (shift - 1);
+#else
+ int offset = 0;
+#endif
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = av_clip_pixel((src[x] + offset) >> shift);
+ dst += dststride;
+ src += srcstride;
+ }
+}
+
+static void FUNC(put_weighted_pred_avg)(uint8_t *_dst, ptrdiff_t _dststride,
+ int16_t *src1, int16_t *src2,
+ ptrdiff_t srcstride,
+ int width, int height)
+{
+ int x, y;
+ pixel *dst = (pixel *)_dst;
+ ptrdiff_t dststride = _dststride / sizeof(pixel);
+
+ int shift = 14 + 1 - BIT_DEPTH;
+#if BIT_DEPTH < 14
+ int offset = 1 << (shift - 1);
+#else
+ int offset = 0;
+#endif
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = av_clip_pixel((src1[x] + src2[x] + offset) >> shift);
+ dst += dststride;
+ src1 += srcstride;
+ src2 += srcstride;
+ }
+}
+
+static void FUNC(weighted_pred)(uint8_t denom, int16_t wlxFlag, int16_t olxFlag,
+ uint8_t *_dst, ptrdiff_t _dststride,
+ int16_t *src, ptrdiff_t srcstride,
+ int width, int height)
+{
+ int shift, log2Wd, wx, ox, x, y, offset;
+ pixel *dst = (pixel *)_dst;
+ ptrdiff_t dststride = _dststride / sizeof(pixel);
+
+ shift = 14 - BIT_DEPTH;
+ log2Wd = denom + shift;
+ offset = 1 << (log2Wd - 1);
+ wx = wlxFlag;
+ ox = olxFlag * (1 << (BIT_DEPTH - 8));
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ if (log2Wd >= 1) {
+ dst[x] = av_clip_pixel(((src[x] * wx + offset) >> log2Wd) + ox);
+ } else {
+ dst[x] = av_clip_pixel(src[x] * wx + ox);
+ }
+ }
+ dst += dststride;
+ src += srcstride;
+ }
+}
+
+static void FUNC(weighted_pred_avg)(uint8_t denom,
+ int16_t wl0Flag, int16_t wl1Flag,
+ int16_t ol0Flag, int16_t ol1Flag,
+ uint8_t *_dst, ptrdiff_t _dststride,
+ int16_t *src1, int16_t *src2,
+ ptrdiff_t srcstride,
+ int width, int height)
+{
+ int shift, log2Wd, w0, w1, o0, o1, x, y;
+ pixel *dst = (pixel *)_dst;
+ ptrdiff_t dststride = _dststride / sizeof(pixel);
+
+ shift = 14 - BIT_DEPTH;
+ log2Wd = denom + shift;
+ w0 = wl0Flag;
+ w1 = wl1Flag;
+ o0 = ol0Flag * (1 << (BIT_DEPTH - 8));
+ o1 = ol1Flag * (1 << (BIT_DEPTH - 8));
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++)
+ dst[x] = av_clip_pixel((src1[x] * w0 + src2[x] * w1 +
+ ((o0 + o1 + 1) << log2Wd)) >> (log2Wd + 1));
+ dst += dststride;
+ src1 += srcstride;
+ src2 += srcstride;
+ }
+}
+
+// line zero
+#define P3 pix[-4 * xstride]
+#define P2 pix[-3 * xstride]
+#define P1 pix[-2 * xstride]
+#define P0 pix[-1 * xstride]
+#define Q0 pix[0 * xstride]
+#define Q1 pix[1 * xstride]
+#define Q2 pix[2 * xstride]
+#define Q3 pix[3 * xstride]
+
+// line three. used only for deblocking decision
+#define TP3 pix[-4 * xstride + 3 * ystride]
+#define TP2 pix[-3 * xstride + 3 * ystride]
+#define TP1 pix[-2 * xstride + 3 * ystride]
+#define TP0 pix[-1 * xstride + 3 * ystride]
+#define TQ0 pix[0 * xstride + 3 * ystride]
+#define TQ1 pix[1 * xstride + 3 * ystride]
+#define TQ2 pix[2 * xstride + 3 * ystride]
+#define TQ3 pix[3 * xstride + 3 * ystride]
+
+static void FUNC(hevc_loop_filter_luma)(uint8_t *_pix,
+ ptrdiff_t _xstride, ptrdiff_t _ystride,
+ int *_beta, int *_tc,
+ uint8_t *_no_p, uint8_t *_no_q)
+{
+ int d, j;
+ pixel *pix = (pixel *)_pix;
+ ptrdiff_t xstride = _xstride / sizeof(pixel);
+ ptrdiff_t ystride = _ystride / sizeof(pixel);
+
+ for (j = 0; j < 2; j++) {
+ const int dp0 = abs(P2 - 2 * P1 + P0);
+ const int dq0 = abs(Q2 - 2 * Q1 + Q0);
+ const int dp3 = abs(TP2 - 2 * TP1 + TP0);
+ const int dq3 = abs(TQ2 - 2 * TQ1 + TQ0);
+ const int d0 = dp0 + dq0;
+ const int d3 = dp3 + dq3;
+ const int beta = _beta[j] << (BIT_DEPTH - 8);
+ const int tc = _tc[j] << (BIT_DEPTH - 8);
+ const int no_p = _no_p[j];
+ const int no_q = _no_q[j];
+
+ if (d0 + d3 >= beta) {
+ pix += 4 * ystride;
+ continue;
+ } else {
+ const int beta_3 = beta >> 3;
+ const int beta_2 = beta >> 2;
+ const int tc25 = ((tc * 5 + 1) >> 1);
+
+ if (abs(P3 - P0) + abs(Q3 - Q0) < beta_3 && abs(P0 - Q0) < tc25 &&
+ abs(TP3 - TP0) + abs(TQ3 - TQ0) < beta_3 && abs(TP0 - TQ0) < tc25 &&
+ (d0 << 1) < beta_2 && (d3 << 1) < beta_2) {
+ // strong filtering
+ const int tc2 = tc << 1;
+ for (d = 0; d < 4; d++) {
+ const int p3 = P3;
+ const int p2 = P2;
+ const int p1 = P1;
+ const int p0 = P0;
+ const int q0 = Q0;
+ const int q1 = Q1;
+ const int q2 = Q2;
+ const int q3 = Q3;
+ if (!no_p) {
+ P0 = p0 + av_clip(((p2 + 2 * p1 + 2 * p0 + 2 * q0 + q1 + 4) >> 3) - p0, -tc2, tc2);
+ P1 = p1 + av_clip(((p2 + p1 + p0 + q0 + 2) >> 2) - p1, -tc2, tc2);
+ P2 = p2 + av_clip(((2 * p3 + 3 * p2 + p1 + p0 + q0 + 4) >> 3) - p2, -tc2, tc2);
+ }
+ if (!no_q) {
+ Q0 = q0 + av_clip(((p1 + 2 * p0 + 2 * q0 + 2 * q1 + q2 + 4) >> 3) - q0, -tc2, tc2);
+ Q1 = q1 + av_clip(((p0 + q0 + q1 + q2 + 2) >> 2) - q1, -tc2, tc2);
+ Q2 = q2 + av_clip(((2 * q3 + 3 * q2 + q1 + q0 + p0 + 4) >> 3) - q2, -tc2, tc2);
+ }
+ pix += ystride;
+ }
+ } else { // normal filtering
+ int nd_p = 1;
+ int nd_q = 1;
+ const int tc_2 = tc >> 1;
+ if (dp0 + dp3 < ((beta + (beta >> 1)) >> 3))
+ nd_p = 2;
+ if (dq0 + dq3 < ((beta + (beta >> 1)) >> 3))
+ nd_q = 2;
+
+ for (d = 0; d < 4; d++) {
+ const int p2 = P2;
+ const int p1 = P1;
+ const int p0 = P0;
+ const int q0 = Q0;
+ const int q1 = Q1;
+ const int q2 = Q2;
+ int delta0 = (9 * (q0 - p0) - 3 * (q1 - p1) + 8) >> 4;
+ if (abs(delta0) < 10 * tc) {
+ delta0 = av_clip(delta0, -tc, tc);
+ if (!no_p)
+ P0 = av_clip_pixel(p0 + delta0);
+ if (!no_q)
+ Q0 = av_clip_pixel(q0 - delta0);
+ if (!no_p && nd_p > 1) {
+ const int deltap1 = av_clip((((p2 + p0 + 1) >> 1) - p1 + delta0) >> 1, -tc_2, tc_2);
+ P1 = av_clip_pixel(p1 + deltap1);
+ }
+ if (!no_q && nd_q > 1) {
+ const int deltaq1 = av_clip((((q2 + q0 + 1) >> 1) - q1 - delta0) >> 1, -tc_2, tc_2);
+ Q1 = av_clip_pixel(q1 + deltaq1);
+ }
+ }
+ pix += ystride;
+ }
+ }
+ }
+ }
+}
+
+static void FUNC(hevc_loop_filter_chroma)(uint8_t *_pix, ptrdiff_t _xstride,
+ ptrdiff_t _ystride, int *_tc,
+ uint8_t *_no_p, uint8_t *_no_q)
+{
+ int d, j, no_p, no_q;
+ pixel *pix = (pixel *)_pix;
+ ptrdiff_t xstride = _xstride / sizeof(pixel);
+ ptrdiff_t ystride = _ystride / sizeof(pixel);
+
+ for (j = 0; j < 2; j++) {
+ const int tc = _tc[j] << (BIT_DEPTH - 8);
+ if (tc <= 0) {
+ pix += 4 * ystride;
+ continue;
+ }
+ no_p = _no_p[j];
+ no_q = _no_q[j];
+
+ for (d = 0; d < 4; d++) {
+ int delta0;
+ const int p1 = P1;
+ const int p0 = P0;
+ const int q0 = Q0;
+ const int q1 = Q1;
+ delta0 = av_clip((((q0 - p0) << 2) + p1 - q1 + 4) >> 3, -tc, tc);
+ if (!no_p)
+ P0 = av_clip_pixel(p0 + delta0);
+ if (!no_q)
+ Q0 = av_clip_pixel(q0 - delta0);
+ pix += ystride;
+ }
+ }
+}
+
+static void FUNC(hevc_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
+ int *tc, uint8_t *no_p,
+ uint8_t *no_q)
+{
+ FUNC(hevc_loop_filter_chroma)(pix, stride, sizeof(pixel), tc, no_p, no_q);
+}
+
+static void FUNC(hevc_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
+ int *tc, uint8_t *no_p,
+ uint8_t *no_q)
+{
+ FUNC(hevc_loop_filter_chroma)(pix, sizeof(pixel), stride, tc, no_p, no_q);
+}
+
+static void FUNC(hevc_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
+ int *beta, int *tc, uint8_t *no_p,
+ uint8_t *no_q)
+{
+ FUNC(hevc_loop_filter_luma)(pix, stride, sizeof(pixel),
+ beta, tc, no_p, no_q);
+}
+
+static void FUNC(hevc_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
+ int *beta, int *tc, uint8_t *no_p,
+ uint8_t *no_q)
+{
+ FUNC(hevc_loop_filter_luma)(pix, sizeof(pixel), stride,
+ beta, tc, no_p, no_q);
+}
+
+#undef P3
+#undef P2
+#undef P1
+#undef P0
+#undef Q0
+#undef Q1
+#undef Q2
+#undef Q3
+
+#undef TP3
+#undef TP2
+#undef TP1
+#undef TP0
+#undef TQ0
+#undef TQ1
+#undef TQ2
+#undef TQ3
diff --git a/libavcodec/hevcpred.c b/libavcodec/hevcpred.c
new file mode 100644
index 0000000..1121f30
--- /dev/null
+++ b/libavcodec/hevcpred.c
@@ -0,0 +1,65 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "hevc.h"
+
+#define BIT_DEPTH 8
+#include "hevcpred_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 9
+#include "hevcpred_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 10
+#include "hevcpred_template.c"
+#undef BIT_DEPTH
+
+void ff_hevc_pred_init(HEVCPredContext *hpc, int bit_depth)
+{
+#undef FUNC
+#define FUNC(a, depth) a ## _ ## depth
+
+#define HEVC_PRED(depth) \
+ hpc->intra_pred = FUNC(intra_pred, depth); \
+ hpc->pred_planar[0] = FUNC(pred_planar_0, depth); \
+ hpc->pred_planar[1] = FUNC(pred_planar_1, depth); \
+ hpc->pred_planar[2] = FUNC(pred_planar_2, depth); \
+ hpc->pred_planar[3] = FUNC(pred_planar_3, depth); \
+ hpc->pred_dc = FUNC(pred_dc, depth); \
+ hpc->pred_angular[0] = FUNC(pred_angular_0, depth); \
+ hpc->pred_angular[1] = FUNC(pred_angular_1, depth); \
+ hpc->pred_angular[2] = FUNC(pred_angular_2, depth); \
+ hpc->pred_angular[3] = FUNC(pred_angular_3, depth);
+
+ switch (bit_depth) {
+ case 9:
+ HEVC_PRED(9);
+ break;
+ case 10:
+ HEVC_PRED(10);
+ break;
+ default:
+ HEVC_PRED(8);
+ break;
+ }
+}
diff --git a/libavcodec/hevcpred_template.c b/libavcodec/hevcpred_template.c
new file mode 100644
index 0000000..27f4b9e
--- /dev/null
+++ b/libavcodec/hevcpred_template.c
@@ -0,0 +1,560 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/pixdesc.h"
+
+#include "hevc.h"
+
+#include "bit_depth_template.c"
+
+#define POS(x, y) src[(x) + stride * (y)]
+
+static void FUNC(intra_pred)(HEVCContext *s, int x0, int y0, int log2_size, int c_idx)
+{
+#define PU(x) \
+ ((x) >> s->sps->log2_min_pu_size)
+#define MVF(x, y) \
+ (s->ref->tab_mvf[(x) + (y) * min_pu_width])
+#define MVF_PU(x, y) \
+ MVF(PU(x0 + ((x) << hshift)), PU(y0 + ((y) << vshift)))
+#define IS_INTRA(x, y) \
+ MVF_PU(x, y).is_intra
+#define MIN_TB_ADDR_ZS(x, y) \
+ s->pps->min_tb_addr_zs[(y) * s->sps->min_tb_width + (x)]
+#define EXTEND_LEFT(ptr, start, length) \
+ for (i = (start); i > (start) - (length); i--) \
+ ptr[i - 1] = ptr[i]
+#define EXTEND_RIGHT(ptr, start, length) \
+ for (i = (start); i < (start) + (length); i++) \
+ ptr[i] = ptr[i - 1]
+#define EXTEND_UP(ptr, start, length) EXTEND_LEFT(ptr, start, length)
+#define EXTEND_DOWN(ptr, start, length) EXTEND_RIGHT(ptr, start, length)
+#define EXTEND_LEFT_CIP(ptr, start, length) \
+ for (i = (start); i > (start) - (length); i--) \
+ if (!IS_INTRA(i - 1, -1)) \
+ ptr[i - 1] = ptr[i]
+#define EXTEND_RIGHT_CIP(ptr, start, length) \
+ for (i = (start); i < (start) + (length); i++) \
+ if (!IS_INTRA(i, -1)) \
+ ptr[i] = ptr[i - 1]
+#define EXTEND_UP_CIP(ptr, start, length) \
+ for (i = (start); i > (start) - (length); i--) \
+ if (!IS_INTRA(-1, i - 1)) \
+ ptr[i - 1] = ptr[i]
+#define EXTEND_UP_CIP_0(ptr, start, length) \
+ for (i = (start); i > (start) - (length); i--) \
+ ptr[i - 1] = ptr[i]
+#define EXTEND_DOWN_CIP(ptr, start, length) \
+ for (i = (start); i < (start) + (length); i++) \
+ if (!IS_INTRA(-1, i)) \
+ ptr[i] = ptr[i - 1]
+ HEVCLocalContext *lc = &s->HEVClc;
+ int i;
+ int hshift = s->sps->hshift[c_idx];
+ int vshift = s->sps->vshift[c_idx];
+ int size = (1 << log2_size);
+ int size_in_luma = size << hshift;
+ int size_in_tbs = size_in_luma >> s->sps->log2_min_tb_size;
+ int x = x0 >> hshift;
+ int y = y0 >> vshift;
+ int x_tb = x0 >> s->sps->log2_min_tb_size;
+ int y_tb = y0 >> s->sps->log2_min_tb_size;
+ int cur_tb_addr = MIN_TB_ADDR_ZS(x_tb, y_tb);
+
+ ptrdiff_t stride = s->frame->linesize[c_idx] / sizeof(pixel);
+ pixel *src = (pixel*)s->frame->data[c_idx] + x + y * stride;
+
+ int min_pu_width = s->sps->min_pu_width;
+
+ enum IntraPredMode mode = c_idx ? lc->pu.intra_pred_mode_c :
+ lc->tu.cur_intra_pred_mode;
+
+ pixel left_array[2 * MAX_TB_SIZE + 1];
+ pixel filtered_left_array[2 * MAX_TB_SIZE + 1];
+ pixel top_array[2 * MAX_TB_SIZE + 1];
+ pixel filtered_top_array[2 * MAX_TB_SIZE + 1];
+
+ pixel *left = left_array + 1;
+ pixel *top = top_array + 1;
+ pixel *filtered_left = filtered_left_array + 1;
+ pixel *filtered_top = filtered_top_array + 1;
+
+ int cand_bottom_left = lc->na.cand_bottom_left && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb - 1, y_tb + size_in_tbs);
+ int cand_left = lc->na.cand_left;
+ int cand_up_left = lc->na.cand_up_left;
+ int cand_up = lc->na.cand_up;
+ int cand_up_right = lc->na.cand_up_right && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb + size_in_tbs, y_tb - 1);
+
+ int bottom_left_size = (FFMIN(y0 + 2 * size_in_luma, s->sps->height) -
+ (y0 + size_in_luma)) >> vshift;
+ int top_right_size = (FFMIN(x0 + 2 * size_in_luma, s->sps->width) -
+ (x0 + size_in_luma)) >> hshift;
+
+ if (s->pps->constrained_intra_pred_flag == 1) {
+ int size_in_luma_pu = PU(size_in_luma);
+ int on_pu_edge_x = !(x0 & ((1 << s->sps->log2_min_pu_size) - 1));
+ int on_pu_edge_y = !(y0 & ((1 << s->sps->log2_min_pu_size) - 1));
+ if (!size_in_luma_pu)
+ size_in_luma_pu++;
+ if (cand_bottom_left == 1 && on_pu_edge_x) {
+ int x_left_pu = PU(x0 - 1);
+ int y_bottom_pu = PU(y0 + size_in_luma);
+ int max = FFMIN(size_in_luma_pu, s->sps->min_pu_height - y_bottom_pu);
+ cand_bottom_left = 0;
+ for (i = 0; i < max; i++)
+ cand_bottom_left |= MVF(x_left_pu, y_bottom_pu + i).is_intra;
+ }
+ if (cand_left == 1 && on_pu_edge_x) {
+ int x_left_pu = PU(x0 - 1);
+ int y_left_pu = PU(y0);
+ int max = FFMIN(size_in_luma_pu, s->sps->min_pu_height - y_left_pu);
+ cand_left = 0;
+ for (i = 0; i < max; i++)
+ cand_left |= MVF(x_left_pu, y_left_pu + i).is_intra;
+ }
+ if (cand_up_left == 1) {
+ int x_left_pu = PU(x0 - 1);
+ int y_top_pu = PU(y0 - 1);
+ cand_up_left = MVF(x_left_pu, y_top_pu).is_intra;
+ }
+ if (cand_up == 1 && on_pu_edge_y) {
+ int x_top_pu = PU(x0);
+ int y_top_pu = PU(y0 - 1);
+ int max = FFMIN(size_in_luma_pu, s->sps->min_pu_width - x_top_pu);
+ cand_up = 0;
+ for (i = 0; i < max; i++)
+ cand_up |= MVF(x_top_pu + i, y_top_pu).is_intra;
+ }
+ if (cand_up_right == 1 && on_pu_edge_y) {
+ int y_top_pu = PU(y0 - 1);
+ int x_right_pu = PU(x0 + size_in_luma);
+ int max = FFMIN(size_in_luma_pu, s->sps->min_pu_width - x_right_pu);
+ cand_up_right = 0;
+ for (i = 0; i < max; i++)
+ cand_up_right |= MVF(x_right_pu + i, y_top_pu).is_intra;
+ }
+ for (i = 0; i < 2 * MAX_TB_SIZE; i++) {
+ left[i] = 128;
+ top[i] = 128;
+ }
+ }
+ if (cand_bottom_left) {
+ for (i = size + bottom_left_size; i < (size << 1); i++)
+ if (IS_INTRA(-1, size + bottom_left_size - 1) ||
+ !s->pps->constrained_intra_pred_flag)
+ left[i] = POS(-1, size + bottom_left_size - 1);
+ for (i = size + bottom_left_size - 1; i >= size; i--)
+ if (IS_INTRA(-1, i) || !s->pps->constrained_intra_pred_flag)
+ left[i] = POS(-1, i);
+ }
+ if (cand_left)
+ for (i = size - 1; i >= 0; i--)
+ if (IS_INTRA(-1, i) || !s->pps->constrained_intra_pred_flag)
+ left[i] = POS(-1, i);
+ if (cand_up_left)
+ if (IS_INTRA(-1, -1) || !s->pps->constrained_intra_pred_flag) {
+ left[-1] = POS(-1, -1);
+ top[-1] = left[-1];
+ }
+ if (cand_up)
+ for (i = size - 1; i >= 0; i--)
+ if (IS_INTRA(i, -1) || !s->pps->constrained_intra_pred_flag)
+ top[i] = POS(i, -1);
+ if (cand_up_right) {
+ for (i = size + top_right_size; i < (size << 1); i++)
+ if (IS_INTRA(size + top_right_size - 1, -1) ||
+ !s->pps->constrained_intra_pred_flag)
+ top[i] = POS(size + top_right_size - 1, -1);
+ for (i = size + top_right_size - 1; i >= size; i--)
+ if (IS_INTRA(i, -1) || !s->pps->constrained_intra_pred_flag)
+ top[i] = POS(i, -1);
+ }
+
+ if (s->pps->constrained_intra_pred_flag == 1) {
+ if (cand_bottom_left || cand_left || cand_up_left || cand_up || cand_up_right) {
+ int size_max_x = x0 + ((2 * size) << hshift) < s->sps->width ?
+ 2 * size : (s->sps->width - x0) >> hshift;
+ int size_max_y = y0 + ((2 * size) << vshift) < s->sps->height ?
+ 2 * size : (s->sps->height - y0) >> vshift;
+ int j = size + (cand_bottom_left? bottom_left_size: 0) -1;
+ if (!cand_up_right) {
+ size_max_x = x0 + ((size) << hshift) < s->sps->width ?
+ size : (s->sps->width - x0) >> hshift;
+ }
+ if (!cand_bottom_left) {
+ size_max_y = y0 + (( size) << vshift) < s->sps->height ?
+ size : (s->sps->height - y0) >> vshift;
+ }
+ if (cand_bottom_left || cand_left || cand_up_left) {
+ while (j > -1 && !IS_INTRA(-1, j))
+ j--;
+ if (!IS_INTRA(-1, j)) {
+ j = 0;
+ while (j < size_max_x && !IS_INTRA(j, -1))
+ j++;
+ EXTEND_LEFT_CIP(top, j, j + 1);
+ left[-1] = top[-1];
+ j = 0;
+ }
+ } else {
+ j = 0;
+ while (j < size_max_x && !IS_INTRA(j, -1))
+ j++;
+ if (j > 0)
+ if (x0 > 0) {
+ EXTEND_LEFT_CIP(top, j, j + 1);
+ } else {
+ EXTEND_LEFT_CIP(top, j, j);
+ top[-1] = top[0];
+ }
+ left[-1] = top[-1];
+ j = 0;
+ }
+ if (cand_bottom_left || cand_left) {
+ EXTEND_DOWN_CIP(left, j, size_max_y - j);
+ }
+ if (!cand_left) {
+ EXTEND_DOWN(left, 0, size);
+ }
+ if (!cand_bottom_left) {
+ EXTEND_DOWN(left, size, size);
+ }
+ if (x0 != 0 && y0 != 0) {
+ EXTEND_UP_CIP(left, size_max_y - 1, size_max_y);
+ } else if (x0 == 0) {
+ EXTEND_UP_CIP_0(left, size_max_y - 1, size_max_y);
+ } else {
+ EXTEND_UP_CIP(left, size_max_y - 1, size_max_y - 1);
+ }
+ top[-1] = left[-1];
+ if (y0 != 0) {
+ EXTEND_RIGHT_CIP(top, 0, size_max_x);
+ }
+ }
+ }
+ // Infer the unavailable samples
+ if (!cand_bottom_left) {
+ if (cand_left) {
+ EXTEND_DOWN(left, size, size);
+ } else if (cand_up_left) {
+ EXTEND_DOWN(left, 0, 2 * size);
+ cand_left = 1;
+ } else if (cand_up) {
+ left[-1] = top[0];
+ EXTEND_DOWN(left, 0, 2 * size);
+ cand_up_left = 1;
+ cand_left = 1;
+ } else if (cand_up_right) {
+ EXTEND_LEFT(top, size, size);
+ left[-1] = top[0];
+ EXTEND_DOWN(left, 0, 2 * size);
+ cand_up = 1;
+ cand_up_left = 1;
+ cand_left = 1;
+ } else { // No samples available
+ top[0] = left[-1] = (1 << (BIT_DEPTH - 1));
+ EXTEND_RIGHT(top, 1, 2 * size - 1);
+ EXTEND_DOWN(left, 0, 2 * size);
+ }
+ }
+
+ if (!cand_left) {
+ EXTEND_UP(left, size, size);
+ }
+ if (!cand_up_left) {
+ left[-1] = left[0];
+ }
+ if (!cand_up) {
+ top[0] = left[-1];
+ EXTEND_RIGHT(top, 1, size - 1);
+ }
+ if (!cand_up_right) {
+ EXTEND_RIGHT(top, size, size);
+ }
+
+ top[-1] = left[-1];
+
+ // Filtering process
+ if (c_idx == 0 && mode != INTRA_DC && size != 4) {
+ int intra_hor_ver_dist_thresh[] = { 7, 1, 0 };
+ int min_dist_vert_hor = FFMIN(FFABS((int)mode - 26),
+ FFABS((int)mode - 10));
+ if (min_dist_vert_hor > intra_hor_ver_dist_thresh[log2_size - 3]) {
+ int threshold = 1 << (BIT_DEPTH - 5);
+ if (s->sps->sps_strong_intra_smoothing_enable_flag &&
+ log2_size == 5 &&
+ FFABS(top[-1] + top[63] - 2 * top[31]) < threshold &&
+ FFABS(left[-1] + left[63] - 2 * left[31]) < threshold) {
+ // We can't just overwrite values in top because it could be
+ // a pointer into src
+ filtered_top[-1] = top[-1];
+ filtered_top[63] = top[63];
+ for (i = 0; i < 63; i++)
+ filtered_top[i] = ((64 - (i + 1)) * top[-1] +
+ (i + 1) * top[63] + 32) >> 6;
+ for (i = 0; i < 63; i++)
+ left[i] = ((64 - (i + 1)) * left[-1] +
+ (i + 1) * left[63] + 32) >> 6;
+ top = filtered_top;
+ } else {
+ filtered_left[2 * size - 1] = left[2 * size - 1];
+ filtered_top[2 * size - 1] = top[2 * size - 1];
+ for (i = 2 * size - 2; i >= 0; i--)
+ filtered_left[i] = (left[i + 1] + 2 * left[i] +
+ left[i - 1] + 2) >> 2;
+ filtered_top[-1] =
+ filtered_left[-1] = (left[0] + 2 * left[-1] + top[0] + 2) >> 2;
+ for (i = 2 * size - 2; i >= 0; i--)
+ filtered_top[i] = (top[i + 1] + 2 * top[i] +
+ top[i - 1] + 2) >> 2;
+ left = filtered_left;
+ top = filtered_top;
+ }
+ }
+ }
+
+ switch (mode) {
+ case INTRA_PLANAR:
+ s->hpc.pred_planar[log2_size - 2]((uint8_t *)src, (uint8_t *)top,
+ (uint8_t *)left, stride);
+ break;
+ case INTRA_DC:
+ s->hpc.pred_dc((uint8_t *)src, (uint8_t *)top,
+ (uint8_t *)left, stride, log2_size, c_idx);
+ break;
+ default:
+ s->hpc.pred_angular[log2_size - 2]((uint8_t *)src, (uint8_t *)top,
+ (uint8_t *)left, stride, c_idx,
+ mode);
+ break;
+ }
+}
+
+static void FUNC(pred_planar_0)(uint8_t *_src, const uint8_t *_top,
+ const uint8_t *_left,
+ ptrdiff_t stride)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ const pixel *top = (const pixel *)_top;
+ const pixel *left = (const pixel *)_left;
+ for (y = 0; y < 4; y++)
+ for (x = 0; x < 4; x++)
+ POS(x, y) = ((3 - x) * left[y] + (x + 1) * top[4] +
+ (3 - y) * top[x] + (y + 1) * left[4] + 4) >> 3;
+}
+
+static void FUNC(pred_planar_1)(uint8_t *_src, const uint8_t *_top,
+ const uint8_t *_left, ptrdiff_t stride)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ const pixel *top = (const pixel *)_top;
+ const pixel *left = (const pixel *)_left;
+ for (y = 0; y < 8; y++)
+ for (x = 0; x < 8; x++)
+ POS(x, y) = ((7 - x) * left[y] + (x + 1) * top[8] +
+ (7 - y) * top[x] + (y + 1) * left[8] + 8) >> 4;
+}
+
+static void FUNC(pred_planar_2)(uint8_t *_src, const uint8_t *_top,
+ const uint8_t *_left, ptrdiff_t stride)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ const pixel *top = (const pixel *)_top;
+ const pixel *left = (const pixel *)_left;
+ for (y = 0; y < 16; y++)
+ for (x = 0; x < 16; x++)
+ POS(x, y) = ((15 - x) * left[y] + (x + 1) * top[16] +
+ (15 - y) * top[x] + (y + 1) * left[16] + 16) >> 5;
+}
+
+static void FUNC(pred_planar_3)(uint8_t *_src, const uint8_t *_top,
+ const uint8_t *_left, ptrdiff_t stride)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ const pixel *top = (const pixel *)_top;
+ const pixel *left = (const pixel *)_left;
+ for (y = 0; y < 32; y++)
+ for (x = 0; x < 32; x++)
+ POS(x, y) = ((31 - x) * left[y] + (x + 1) * top[32] +
+ (31 - y) * top[x] + (y + 1) * left[32] + 32) >> 6;
+}
+
+static void FUNC(pred_dc)(uint8_t *_src, const uint8_t *_top,
+ const uint8_t *_left,
+ ptrdiff_t stride, int log2_size, int c_idx)
+{
+ int i, j, x, y;
+ int size = (1 << log2_size);
+ pixel *src = (pixel *)_src;
+ const pixel *top = (const pixel *)_top;
+ const pixel *left = (const pixel *)_left;
+ int dc = size;
+ pixel4 a;
+ for (i = 0; i < size; i++)
+ dc += left[i] + top[i];
+
+ dc >>= log2_size + 1;
+
+ a = PIXEL_SPLAT_X4(dc);
+
+ for (i = 0; i < size; i++)
+ for (j = 0; j < size / 4; j++)
+ AV_WN4PA(&POS(j * 4, i), a);
+
+ if (c_idx == 0 && size < 32) {
+ POS(0, 0) = (left[0] + 2 * dc + top[0] + 2) >> 2;
+ for (x = 1; x < size; x++)
+ POS(x, 0) = (top[x] + 3 * dc + 2) >> 2;
+ for (y = 1; y < size; y++)
+ POS(0, y) = (left[y] + 3 * dc + 2) >> 2;
+ }
+}
+
+static av_always_inline void FUNC(pred_angular)(uint8_t *_src,
+ const uint8_t *_top,
+ const uint8_t *_left,
+ ptrdiff_t stride, int c_idx,
+ int mode, int size)
+{
+ int x, y;
+ pixel *src = (pixel *)_src;
+ const pixel *top = (const pixel *)_top;
+ const pixel *left = (const pixel *)_left;
+
+ static const int intra_pred_angle[] = {
+ 32, 26, 21, 17, 13, 9, 5, 2, 0, -2, -5, -9, -13, -17, -21, -26, -32,
+ -26, -21, -17, -13, -9, -5, -2, 0, 2, 5, 9, 13, 17, 21, 26, 32
+ };
+ static const int inv_angle[] = {
+ -4096, -1638, -910, -630, -482, -390, -315, -256, -315, -390, -482,
+ -630, -910, -1638, -4096
+ };
+
+ int angle = intra_pred_angle[mode - 2];
+ pixel ref_array[3 * MAX_TB_SIZE + 1];
+ pixel *ref_tmp = ref_array + size;
+ const pixel *ref;
+ int last = (size * angle) >> 5;
+
+ if (mode >= 18) {
+ ref = top - 1;
+ if (angle < 0 && last < -1) {
+ for (x = 0; x <= size; x++)
+ ref_tmp[x] = top[x - 1];
+ for (x = last; x <= -1; x++)
+ ref_tmp[x] = left[-1 + ((x * inv_angle[mode - 11] + 128) >> 8)];
+ ref = ref_tmp;
+ }
+
+ for (y = 0; y < size; y++) {
+ int idx = ((y + 1) * angle) >> 5;
+ int fact = ((y + 1) * angle) & 31;
+ if (fact) {
+ for (x = 0; x < size; x++) {
+ POS(x, y) = ((32 - fact) * ref[x + idx + 1] +
+ fact * ref[x + idx + 2] + 16) >> 5;
+ }
+ } else {
+ for (x = 0; x < size; x++)
+ POS(x, y) = ref[x + idx + 1];
+ }
+ }
+ if (mode == 26 && c_idx == 0 && size < 32) {
+ for (y = 0; y < size; y++)
+ POS(0, y) = av_clip_pixel(top[0] + ((left[y] - left[-1]) >> 1));
+ }
+ } else {
+ ref = left - 1;
+ if (angle < 0 && last < -1) {
+ for (x = 0; x <= size; x++)
+ ref_tmp[x] = left[x - 1];
+ for (x = last; x <= -1; x++)
+ ref_tmp[x] = top[-1 + ((x * inv_angle[mode - 11] + 128) >> 8)];
+ ref = ref_tmp;
+ }
+
+ for (x = 0; x < size; x++) {
+ int idx = ((x + 1) * angle) >> 5;
+ int fact = ((x + 1) * angle) & 31;
+ if (fact) {
+ for (y = 0; y < size; y++) {
+ POS(x, y) = ((32 - fact) * ref[y + idx + 1] +
+ fact * ref[y + idx + 2] + 16) >> 5;
+ }
+ } else {
+ for (y = 0; y < size; y++)
+ POS(x, y) = ref[y + idx + 1];
+ }
+ }
+ if (mode == 10 && c_idx == 0 && size < 32) {
+ for (x = 0; x < size; x++)
+ POS(x, 0) = av_clip_pixel(left[0] + ((top[x] - top[-1]) >> 1));
+ }
+ }
+}
+
+static void FUNC(pred_angular_0)(uint8_t *src, const uint8_t *top,
+ const uint8_t *left,
+ ptrdiff_t stride, int c_idx, int mode)
+{
+ FUNC(pred_angular)(src, top, left, stride, c_idx, mode, 1 << 2);
+}
+
+static void FUNC(pred_angular_1)(uint8_t *src, const uint8_t *top,
+ const uint8_t *left,
+ ptrdiff_t stride, int c_idx, int mode)
+{
+ FUNC(pred_angular)(src, top, left, stride, c_idx, mode, 1 << 3);
+}
+
+static void FUNC(pred_angular_2)(uint8_t *src, const uint8_t *top,
+ const uint8_t *left,
+ ptrdiff_t stride, int c_idx, int mode)
+{
+ FUNC(pred_angular)(src, top, left, stride, c_idx, mode, 1 << 4);
+}
+
+static void FUNC(pred_angular_3)(uint8_t *src, const uint8_t *top,
+ const uint8_t *left,
+ ptrdiff_t stride, int c_idx, int mode)
+{
+ FUNC(pred_angular)(src, top, left, stride, c_idx, mode, 1 << 5);
+}
+
+#undef EXTEND_LEFT_CIP
+#undef EXTEND_RIGHT_CIP
+#undef EXTEND_UP_CIP
+#undef EXTEND_DOWN_CIP
+#undef IS_INTRA
+#undef MVF_PU
+#undef MVF
+#undef PU
+#undef EXTEND_LEFT
+#undef EXTEND_RIGHT
+#undef EXTEND_UP
+#undef EXTEND_DOWN
+#undef MIN_TB_ADDR_ZS
+#undef POS
diff --git a/libavcodec/version.h b/libavcodec/version.h
index b2b745d..aec0ccd 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -27,7 +27,7 @@
*/
#define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR 23
+#define LIBAVCODEC_VERSION_MINOR 24
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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