[FFmpeg-devel] [PATCH 1/2] avcodec: Add Cineform HD Decoder
Kieran Kunhya
kieran at kunhya.com
Sun Jan 10 01:28:49 CET 2016
---
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 1 +
libavcodec/avcodec.h | 1 +
libavcodec/cfhd.c | 565 ++++++++++++++++++++++++++++++++++++++++++++++++
libavcodec/cfhd.h | 99 +++++++++
libavcodec/cfhddata.c | 470 ++++++++++++++++++++++++++++++++++++++++
libavcodec/codec_desc.c | 6 +
7 files changed, 1143 insertions(+)
create mode 100644 libavcodec/cfhd.c
create mode 100644 libavcodec/cfhd.h
create mode 100644 libavcodec/cfhddata.c
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index b9ffdb9..c331a4f 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -210,6 +210,7 @@ OBJS-$(CONFIG_CAVS_DECODER) += cavs.o cavsdec.o cavsdsp.o \
OBJS-$(CONFIG_CCAPTION_DECODER) += ccaption_dec.o
OBJS-$(CONFIG_CDGRAPHICS_DECODER) += cdgraphics.o
OBJS-$(CONFIG_CDXL_DECODER) += cdxl.o
+OBJS-$(CONFIG_CFHD_DECODER) += cfhd.o cfhddata.o
OBJS-$(CONFIG_CINEPAK_DECODER) += cinepak.o
OBJS-$(CONFIG_CINEPAK_ENCODER) += cinepakenc.o elbg.o
OBJS-$(CONFIG_CLJR_DECODER) += cljrdec.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 2128546..1d92c8b 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -147,6 +147,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(CAVS, cavs);
REGISTER_DECODER(CDGRAPHICS, cdgraphics);
REGISTER_DECODER(CDXL, cdxl);
+ REGISTER_DECODER(CFHD, cfhd);
REGISTER_ENCDEC (CINEPAK, cinepak);
REGISTER_ENCDEC (CLJR, cljr);
REGISTER_DECODER(CLLC, cllc);
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index f365775..b958a6c 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -315,6 +315,7 @@ enum AVCodecID {
AV_CODEC_ID_SMVJPEG,
AV_CODEC_ID_APNG,
AV_CODEC_ID_DAALA,
+ AV_CODEC_ID_CFHD,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
diff --git a/libavcodec/cfhd.c b/libavcodec/cfhd.c
new file mode 100644
index 0000000..dc36889
--- /dev/null
+++ b/libavcodec/cfhd.c
@@ -0,0 +1,565 @@
+/*
+ * Copyright (c) 2015 Kieran Kunhya
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * CFHD Video Decoder
+ */
+
+#include "libavutil/buffer.h"
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "bswapdsp.h"
+#include "internal.h"
+#include "bytestream.h"
+#include "cfhd.h"
+
+static av_cold int cfhd_decode_init(AVCodecContext *avctx)
+{
+ CFHDContext *s = avctx->priv_data;
+
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
+ avctx->bits_per_raw_sample = 10;
+ s->avctx = avctx;
+
+ return ff_cfhd_init_vlcs(s);
+}
+
+static void init_plane_defaults(CFHDContext *s)
+{
+ s->subband_num = 0;
+ s->level = 0;
+ s->subband_num_actual = 0;
+}
+
+static void init_frame_defaults(CFHDContext *s)
+{
+ s->bpc = 10;
+ s->channel_cnt = 4;
+ s->subband_cnt = 10;
+ s->channel_num = 0;
+ s->lowpass_precision = 16;
+ s->quantisation = 1;
+ s->wavelet_depth = 3;
+ s->pshift = 1;
+ s->codebook = 0;
+ init_plane_defaults(s);
+}
+
+static inline int dequant_and_decompand(int level, int quantisation)
+{
+ int abslevel = abs(level);
+ return (abslevel + ((768 * abslevel * abslevel * abslevel) / (255 * 255 * 255))) * FFSIGN(level) * quantisation;
+}
+
+static inline void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride,
+ int16_t *high, ptrdiff_t high_stride, int len)
+{
+ int32_t tmp;
+
+ int i;
+ for (i = 0; i < len; i++) {
+ if( i == 0 )
+ {
+ tmp = (11*low[0*low_stride] - 4*low[1*low_stride] + low[2*low_stride] + 4) >> 3;
+ output[(2*i+0)*out_stride] = (tmp + high[0*high_stride]) >> 1;
+ tmp = ( 5*low[0*low_stride] + 4*low[1*low_stride] - low[2*low_stride] + 4) >> 3;
+ output[(2*i+1)*out_stride] = (tmp - high[0*high_stride]) >> 1;
+ }
+ else if( i == len-1 )
+ {
+ tmp = ( 5*low[i*low_stride] + 4*low[(i-1)*low_stride] - low[(i-2)*low_stride] + 4) >> 3;
+ output[(2*i+0)*out_stride] = (tmp + high[i*high_stride]) >> 1;
+ tmp = (11*low[i*low_stride] - 4*low[(i-1)*low_stride] + low[(i-2)*low_stride] + 4) >> 3;
+ output[(2*i+1)*out_stride] = (tmp - high[i*high_stride]) >> 1;
+ }
+ else
+ {
+ tmp = (low[(i-1)*low_stride] - low[(i+1)*low_stride] + 4) >> 3;
+ output[(2*i+0)*out_stride] = (tmp + low[i*low_stride] + high[i*high_stride]) >> 1;
+ tmp = (low[(i+1)*low_stride] - low[(i-1)*low_stride] + 4) >> 3;
+ output[(2*i+1)*out_stride] = (tmp + low[i*low_stride] - high[i*high_stride]) >> 1;
+ }
+ }
+}
+
+static void horiz_filter(int16_t *output, int16_t *low, int16_t *high, int width)
+{
+ filter(output, 1, low, 1, high, 1, width);
+}
+
+static void vert_filter(int16_t *output, int out_stride, int16_t *low, int low_stride,
+ int16_t *high, int high_stride, int len)
+{
+ filter(output, out_stride, low, low_stride, high, high_stride, len);
+}
+
+static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
+ AVPacket *avpkt)
+{
+ CFHDContext *s = avctx->priv_data;
+ GetByteContext gb;
+ AVFrame *pic = data;
+ int ret = 0, i, j;
+ int16_t *plane[3] = {NULL};
+ int16_t *tmp[3] = {NULL};
+ int16_t *subband[3][10] = {{0}};
+ int16_t *l_h[3][8];
+ int16_t *coeff_data;
+
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
+
+ for (i = 0; i < 3; i++) {
+ int width = i ? avctx->width >> s->chroma_x_shift : avctx->width;
+ int height = i ? avctx->height >> s->chroma_y_shift : avctx->height;
+ int stride = FFALIGN(width / 8, 8) * 8;
+ int w8, h8, w4, h4, w2, h2;
+ height = FFALIGN(height / 8, 2) * 8;
+ s->plane[i].width = width;
+ s->plane[i].height = height;
+ s->plane[i].stride = stride;
+
+ w8 = FFALIGN(s->plane[i].width / 8, 8);
+ h8 = FFALIGN(s->plane[i].height / 8, 2);
+ w4 = w8 * 2;
+ h4 = h8 * 2;
+ w2 = w4 * 2;
+ h2 = h4 * 2;
+
+ plane[i] = av_malloc(height * stride * sizeof(*plane[i]));
+ tmp[i] = av_malloc(height * stride * sizeof(*tmp[i]));
+ if (!plane[i] || !tmp[i]) {
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+
+ subband[i][0] = plane[i];
+ subband[i][1] = plane[i] + 2 * w8 * h8;
+ subband[i][2] = plane[i] + 1 * w8 * h8;
+ subband[i][3] = plane[i] + 3 * w8 * h8;
+ subband[i][4] = plane[i] + 2 * w4 * h4;
+ subband[i][5] = plane[i] + 1 * w4 * h4;
+ subband[i][6] = plane[i] + 3 * w4 * h4;
+ subband[i][7] = plane[i] + 2 * w2 * h2;
+ subband[i][8] = plane[i] + 1 * w2 * h2;
+ subband[i][9] = plane[i] + 3 * w2 * h2;
+
+ l_h[i][0] = tmp[i];
+ l_h[i][1] = tmp[i] + 2 * w8 * h8;
+ //l_h[i][2] = ll2;
+ l_h[i][3] = tmp[i];
+ l_h[i][4] = tmp[i] + 2 * w4 * h4;
+ //l_h[i][5] = ll1;
+ l_h[i][6] = tmp[i];
+ l_h[i][7] = tmp[i] + 2 * w2 * h2;
+ }
+
+ init_frame_defaults(s);
+
+ if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
+ return ret;
+
+ bytestream2_init(&gb, avpkt->data, avpkt->size);
+
+ while (bytestream2_tell(&gb) < avpkt->size) {
+ /* Bit weird but implement the tag parsing as the spec says */
+ uint16_t tagu = bytestream2_get_be16(&gb);
+ int16_t tag = (int16_t)tagu;
+ int8_t tag8 = (int8_t)(tagu >> 8);
+ uint16_t abstag = abs(tag);
+ int8_t abs_tag8 = abs(tag8);
+ uint16_t data = bytestream2_get_be16(&gb);
+ if (abs_tag8 >= 0x60 && abs_tag8 <= 0x6f) {
+ av_log(avctx, AV_LOG_DEBUG, "large len %x \n", ((tagu & 0xff) << 16) | data);
+ } else if (tag == 20) {
+ av_log(avctx, AV_LOG_DEBUG, "Width %"PRIu16" \n", data);
+ avctx->width = data;
+ } else if (tag == 21) {
+ av_log(avctx, AV_LOG_DEBUG, "Height %"PRIu16" \n", data);
+ avctx->height = data;
+ } else if (tag == 101) {
+ av_log(avctx, AV_LOG_DEBUG, "Bits per component: %"PRIu16" \n", data);
+ s->bpc = data;
+ } else if (tag == 12) {
+ av_log(avctx, AV_LOG_DEBUG, "Channel Count: %"PRIu16" \n", data);
+ s->channel_cnt = data;
+ if (data != 3) {
+ av_log(avctx, AV_LOG_ERROR, "Channel Count of %"PRIu16" is unsupported\n", data);
+ ret = AVERROR_PATCHWELCOME;
+ break;
+ }
+ } else if (tag == 14) {
+ av_log(avctx, AV_LOG_DEBUG, "Subband Count: %"PRIu16" \n", data);
+ if (data != 10) {
+ av_log(avctx, AV_LOG_ERROR, "Subband Count of %"PRIu16" is unsupported\n", data);
+ ret = AVERROR_PATCHWELCOME;
+ break;
+ }
+ } else if (tag == 62) {
+ s->channel_num = data;
+ av_log(avctx, AV_LOG_DEBUG, "Channel number %"PRIu16" \n", data);
+ init_plane_defaults(s);
+ } else if (tag == 48) {
+ if (s->subband_num != 0 && data == 1) // hack
+ s->level++;
+ av_log(avctx, AV_LOG_DEBUG, "Subband number %"PRIu16" \n", data);
+ s->subband_num = data;
+ } else if (tag == 51) {
+ av_log(avctx, AV_LOG_DEBUG, "Subband number actual %"PRIu16" \n", data);
+ s->subband_num_actual = data;
+ } else if (tag == 35)
+ av_log(avctx, AV_LOG_DEBUG, "Lowpass precision bits: %"PRIu16" \n", data);
+ else if (tag == 53) {
+ s->quantisation = data;
+ av_log(avctx, AV_LOG_DEBUG, "Quantisation: %"PRIu16" \n", data);
+ } else if (tag == 109) {
+ s->prescale_shift[0] = (data >> 0) & 0x7;
+ s->prescale_shift[1] = (data >> 3) & 0x7;
+ s->prescale_shift[2] = (data >> 6) & 0x7;
+ av_log(avctx, AV_LOG_DEBUG, "Prescale shift (VC-5): %x \n", data);
+ } else if (tag == 27) {
+ s->plane[s->channel_num].band[0][0].width = data;
+ s->plane[s->channel_num].band[0][0].stride = data;
+ av_log(avctx, AV_LOG_DEBUG, "Lowpass width %"PRIu16" \n", data);
+ } else if (tag == 28) {
+ s->plane[s->channel_num].band[0][0].height = data;
+ av_log(avctx, AV_LOG_DEBUG, "Lowpass height %"PRIu16" \n", data);
+ } else if (tag == 1)
+ av_log(avctx, AV_LOG_DEBUG, "Sample type? %"PRIu16" \n", data);
+ else if (tag == 10) {
+ if (data != 0) {
+ av_log(avctx, AV_LOG_ERROR, "Transform type of %"PRIu16" is unsupported\n", data);
+ ret = AVERROR_PATCHWELCOME;
+ break;
+ }
+ av_log(avctx, AV_LOG_DEBUG, "Transform-type? %"PRIu16" \n", data);
+ } else if (abstag >= 0x4000 && abstag <= 0x40ff) {
+ av_log(avctx, AV_LOG_DEBUG, "Small chunk length %"PRIu16" %s \n", data * 4, tag < 0 ? "optional" : "required");
+ bytestream2_skipu(&gb, data * 4);
+ } else if (tag == 23) {
+ av_log(avctx, AV_LOG_DEBUG, "Skip frame \n");
+ av_log(avctx, AV_LOG_ERROR, "Skip frame not supported \n");
+ ret = AVERROR_PATCHWELCOME;
+ break;
+ } else if (tag == 2) {
+ av_log(avctx, AV_LOG_DEBUG, "tag=2 header - skipping %i tag/value pairs \n", data);
+ for (i = 0; i < data; i++) {
+ av_log(avctx, AV_LOG_DEBUG, "Tag/Value = %x %x \n", bytestream2_get_be16(&gb), bytestream2_get_be16(&gb));
+ }
+ } else if (tag == 41) {
+ s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
+ s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
+ av_log(avctx, AV_LOG_DEBUG, "Highpass width %i channel %i level %i subband %i \n", data, s->channel_num, s->level, s->subband_num);
+ } else if (tag == 42) {
+ s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
+ av_log(avctx, AV_LOG_DEBUG, "Highpass height %i \n", data);
+ } else if (tag == 49) {
+ s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
+ s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
+ av_log(avctx, AV_LOG_DEBUG, "Highpass width2 %i \n", data);
+ } else if (tag == 50) {
+ s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
+ av_log(avctx, AV_LOG_DEBUG, "Highpass height2 %i \n", data);
+ } else if (tag == 71) {
+ s->codebook = data;
+ av_log(avctx, AV_LOG_DEBUG, "Codebook %i \n", s->codebook);
+ } else if (tag == 72) {
+ s->codebook = data;
+ av_log(avctx, AV_LOG_DEBUG, "Other codebook? %i \n", s->codebook);
+ } else
+ av_log(avctx, AV_LOG_DEBUG, "Unknown tag %i data %x \n", tag, data);
+
+ coeff_data = subband[s->channel_num][s->subband_num_actual];
+
+ /* Lowpass coefficients */
+ if (tag == 4 && data == 0xf0f) {
+ int lowpass_height = s->plane[s->channel_num].band[0][0].height;
+ int lowpass_width = s->plane[s->channel_num].band[0][0].width;
+
+ if (lowpass_width * lowpass_height * sizeof(int16_t) > bytestream2_get_bytes_left(&gb)) {
+ av_log(avctx, AV_LOG_ERROR, "Too many lowpass coefficients \n");
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+
+ av_log(avctx, AV_LOG_DEBUG, "Start of lowpass coeffs component %"PRIu16" \n", s->channel_num);
+ for (i = 0; i < lowpass_height; i++) {
+ for (j = 0; j < lowpass_width; j++) {
+ coeff_data[j] = AV_RB16(gb.buffer);
+
+ gb.buffer += 2;
+ }
+ coeff_data += lowpass_width;
+ }
+
+ /* Copy last line of coefficients if odd height */
+ if (lowpass_height & 1) {
+ memcpy(&coeff_data[lowpass_height * lowpass_width],
+ &coeff_data[(lowpass_height - 1) * lowpass_width],
+ lowpass_width * sizeof(*coeff_data));
+ }
+
+ av_log(avctx, AV_LOG_DEBUG, "Lowpass coefficients %"PRIu16" \n", lowpass_width * lowpass_height);
+ }
+
+ if (tag == 55 && s->subband_num_actual != 255) {
+ int highpass_height = s->plane[s->channel_num].band[s->level][s->subband_num].height;
+ int highpass_stride = s->plane[s->channel_num].band[s->level][s->subband_num].stride;
+ int expected = highpass_height * highpass_stride;
+ int level, run, coeff;
+ int count = 0, bytes;
+
+ av_log(avctx, AV_LOG_DEBUG, "Start subband coeffs plane %i level %i codebook %i expected %i \n", s->channel_num, s->level, s->codebook, expected);
+
+ init_get_bits(&s->gb, gb.buffer, bytestream2_get_bytes_left(&gb) * 8);
+ OPEN_READER(re, &s->gb);
+ if (!s->codebook) {
+ for (;;) {
+ UPDATE_CACHE(re, &s->gb);
+ GET_RL_VLC(level, run, re, &s->gb, s->table_9_rl_vlc,
+ VLC_BITS, 3, 1);
+
+ /* escape */
+ if (level == 64)
+ break;
+
+ count += run;
+
+ if (count > expected)
+ break;
+
+ coeff = dequant_and_decompand(level, s->quantisation);
+ for (i = 0; i < run; i++)
+ *coeff_data++ = coeff;
+ }
+ } else {
+ for (;;) {
+ UPDATE_CACHE(re, &s->gb);
+ GET_RL_VLC(level, run, re, &s->gb, s->table_18_rl_vlc,
+ VLC_BITS, 3, 1);
+
+ /* escape */
+ if (level == 255 && run == 2)
+ break;
+
+ count += run;
+
+ if (count > expected)
+ break;
+
+ coeff = dequant_and_decompand(level, s->quantisation);
+ for (i = 0; i < run; i++)
+ *coeff_data++ = coeff;
+ }
+ }
+ CLOSE_READER(re, &s->gb);
+
+ if (count > expected) {
+ av_log(avctx, AV_LOG_ERROR, "Escape codeword not found, probably corrupt data \n");
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+
+ bytes = FFALIGN(FF_CEIL_RSHIFT(get_bits_count(&s->gb), 3), 4);
+ if (bytes > bytestream2_get_bytes_left(&gb)) {
+ av_log(avctx, AV_LOG_ERROR, "Bitstream overread error \n");
+ ret = AVERROR(EINVAL);
+ goto end;
+ } else
+ gb.buffer += bytes;
+
+ av_log(avctx, AV_LOG_DEBUG, "End subband coeffs %i extra %i %p \n", count, count - expected, subband[s->subband_num_actual]);
+ s->codebook = 0;
+
+ /* Copy last line of coefficients if odd height */
+ if (highpass_height & 1) {
+ memcpy(&coeff_data[highpass_height * highpass_stride],
+ &coeff_data[(highpass_height - 1) * highpass_stride],
+ highpass_stride * sizeof(*coeff_data));
+ }
+ }
+ }
+
+ for (int plane = 0; plane < 3 && !ret; plane++) {
+ /* level 1 */
+ int lowpass_height = s->plane[plane].band[0][0].height;
+ int lowpass_width = s->plane[plane].band[0][0].width;
+ int highpass_stride = s->plane[plane].band[0][1].stride;
+ int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : 0;
+ int16_t *low, *high, *output, *dst;
+
+ av_log(avctx, AV_LOG_DEBUG, "Decoding level 1 plane %i %i %i %i \n", plane, lowpass_height, lowpass_width, highpass_stride);
+
+ low = subband[plane][0];
+ high = subband[plane][2];
+ output = l_h[plane][0];
+ for (i = 0; i < lowpass_width; i++) {
+ vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
+ low++;
+ high++;
+ output++;
+ }
+
+ low = subband[plane][1];
+ high = subband[plane][3];
+ output = l_h[plane][1];
+ for (i = 0; i < lowpass_width; i++) {
+ // note the stride of "low" is highpass_stride
+ vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
+ low++;
+ high++;
+ output++;
+ }
+
+ low = l_h[plane][0];
+ high = l_h[plane][1];
+ output = subband[plane][0];
+ for (i = 0; i < lowpass_height * 2; i++) {
+ horiz_filter(output, low, high, lowpass_width);
+ low += lowpass_width;
+ high += lowpass_width;
+ output += lowpass_width * 2;
+ }
+
+ /* level 2 */
+ lowpass_height = s->plane[plane].band[1][1].height;
+ lowpass_width = s->plane[plane].band[1][1].width;
+ highpass_stride = s->plane[plane].band[1][1].stride;
+
+ av_log(avctx, AV_LOG_DEBUG, "Level 2 plane %i %i %i %i \n", plane, lowpass_height, lowpass_width, highpass_stride);
+
+ low = subband[plane][0];
+ high = subband[plane][5];
+ output = l_h[plane][3];
+ for (i = 0; i < lowpass_width; i++) {
+ vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
+ low++;
+ high++;
+ output++;
+ }
+
+ low = subband[plane][4];
+ high = subband[plane][6];
+ output = l_h[plane][4];
+ for (i = 0; i < lowpass_width; i++) {
+ vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
+ low++;
+ high++;
+ output++;
+ }
+
+ low = l_h[plane][3];
+ high = l_h[plane][4];
+ output = subband[plane][0];
+ for (i = 0; i < lowpass_height * 2; i++) {
+ horiz_filter(output, low, high, lowpass_width);
+ low += lowpass_width;
+ high += lowpass_width;
+ output += lowpass_width * 2;
+ }
+
+ output = subband[plane][0];
+ for (i = 0; i < lowpass_height * 2; i++) {
+ for (j = 0; j < lowpass_width * 2; j++)
+ output[j] <<= 2;
+
+ output += lowpass_width * 2;
+ }
+
+ /* level 3 */
+ lowpass_height = s->plane[plane].band[2][1].height;
+ lowpass_width = s->plane[plane].band[2][1].width;
+ highpass_stride = s->plane[plane].band[2][1].stride;
+
+ av_log(avctx, AV_LOG_DEBUG, "Level 3 plane %i %i %i %i \n", plane, lowpass_height, lowpass_width, highpass_stride);
+
+ low = subband[plane][0];
+ high = subband[plane][8];
+ output = l_h[plane][6];
+ for (i = 0; i < lowpass_width; i++) {
+ vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
+ low++;
+ high++;
+ output++;
+ }
+
+ low = subband[plane][7];
+ high = subband[plane][9];
+ output = l_h[plane][7];
+ for (i = 0; i < lowpass_width; i++) {
+ vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
+ low++;
+ high++;
+ output++;
+ }
+
+ dst = (int16_t *)pic->data[act_plane];
+ low = l_h[plane][6];
+ high = l_h[plane][7];
+ for (i = 0; i < lowpass_height * 2; i++) {
+ horiz_filter(dst, low, high, lowpass_width);
+ low += lowpass_width;
+ high += lowpass_width;
+ dst += pic->linesize[act_plane] / 2;
+ }
+ }
+
+
+end:
+ for (i = 0; i < 3; i++) {
+ av_freep(&plane[i]);
+ av_freep(&tmp[i]);
+ }
+
+ if (ret < 0)
+ return ret;
+
+ *got_frame = 1;
+ return avpkt->size;
+}
+
+static av_cold int cfhd_close_decoder(AVCodecContext *avctx)
+{
+ CFHDContext *s = avctx->priv_data;
+
+ if (!avctx->internal->is_copy) {
+ ff_free_vlc(&s->vlc_9);
+ ff_free_vlc(&s->vlc_18);
+ }
+
+ return 0;
+}
+
+AVCodec ff_cfhd_decoder = {
+ .name = "cfhd",
+ .long_name = NULL_IF_CONFIG_SMALL("Cineform HD"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_CFHD,
+ .priv_data_size = sizeof(CFHDContext),
+ .init = cfhd_decode_init,
+ .close = cfhd_close_decoder,
+ .decode = cfhd_decode,
+ .capabilities = AV_CODEC_CAP_EXPERIMENTAL | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
+};
diff --git a/libavcodec/cfhd.h b/libavcodec/cfhd.h
new file mode 100644
index 0000000..d709e4c
--- /dev/null
+++ b/libavcodec/cfhd.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2015 Kieran Kunhya
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/avassert.h"
+
+#include "avcodec.h"
+#include "get_bits.h"
+
+#define VLC_BITS 9
+#define NB_VLC_TABLE_9 (71+3)
+#define NB_VLC_TABLE_18 (263+1)
+
+typedef struct CFHD_RL_VLC_ELEM {
+ int16_t level;
+ int8_t len;
+ uint16_t run;
+} CFHD_RL_VLC_ELEM;
+
+#define DWT_LEVELS 3
+
+typedef struct SubBand {
+ int level;
+ int orientation;
+ int stride;
+ int width;
+ int height;
+ int pshift;
+ int quant;
+ uint8_t *ibuf;
+} SubBand;
+
+typedef struct Plane {
+ int width;
+ int height;
+ ptrdiff_t stride;
+
+ int idwt_width;
+ int idwt_height;
+ int idwt_stride;
+ uint8_t *idwt_buf;
+ uint8_t *idwt_buf_base;
+ uint8_t *idwt_tmp;
+
+ SubBand band[DWT_LEVELS][4];
+} Plane;
+
+typedef struct CFHDContext {
+ AVCodecContext *avctx;
+
+ CFHD_RL_VLC_ELEM table_9_rl_vlc[2088];
+ VLC vlc_9;
+
+ CFHD_RL_VLC_ELEM table_18_rl_vlc[4572];
+ VLC vlc_18;
+
+ GetBitContext gb;
+
+ int chroma_x_shift;
+ int chroma_y_shift;
+
+ int bpc;
+ int channel_cnt;
+ int subband_cnt;
+ int channel_num;
+ uint8_t lowpass_precision;
+ uint16_t quantisation;
+ int wavelet_depth;
+ int pshift;
+
+ int codebook;
+ int subband_num;
+ int level;
+ int subband_num_actual;
+
+ uint8_t prescale_shift[3];
+ Plane plane[4];
+
+} CFHDContext;
+
+int ff_cfhd_init_vlcs(CFHDContext *s);
diff --git a/libavcodec/cfhddata.c b/libavcodec/cfhddata.c
new file mode 100644
index 0000000..a08bfc7
--- /dev/null
+++ b/libavcodec/cfhddata.c
@@ -0,0 +1,470 @@
+/*
+ * Copyright (c) 2015 Kieran Kunhya
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "stdint.h"
+#include "cfhd.h"
+
+/* some special codewords, not sure what they all mean */
+#define TABLE_9_BAND_END1 0x1C7859Eh
+#define TABLE_9_BAND_END_LEN1 25
+#define TABLE_9_BAND_END2 0x38F0B3Fh
+#define TABLE_9_BAND_END_LEN2 26
+#define TABLE_9_BAND_END3 0x38F0B3Eh
+#define TABLE_9_BAND_END_LEN3 26
+
+static const uint8_t table_9_vlc_len[NB_VLC_TABLE_9] = {
+ 1, 2, 4, 5, 5, 5, 6, 6,
+ 6, 7, 7, 8, 8, 8, 8, 9,
+ 9, 9, 9, 9, 10, 10, 11, 11,
+ 11, 11, 12, 12, 12, 12, 13, 13,
+ 13, 14, 14, 14, 14, 14, 14, 15,
+ 15, 15, 15, 16, 16, 16, 16, 17,
+ 17, 17, 17, 17, 18, 18, 18, 19,
+ 19, 19, 20, 20, 20, 20, 20, 22,
+ 23, 23, 23, 23, 24, 24, 24, 25,
+ 26, 26,
+};
+
+static const uint32_t table_9_vlc_bits[NB_VLC_TABLE_9] = {
+ 0, 0x2, 0xc, 0x1a, 0x1d, 0x1e, 0x39, 0x3e,
+ 0x37, 0x7e, 0x6c, 0xe2, 0xfe, 0xdb, 0xe0, 0x1c3,
+ 0x1c6, 0x1ff, 0x1fe, 0x1b5, 0x369, 0x385, 0x71d, 0x6d0,
+ 0x708, 0x71f, 0xe3d, 0xe39, 0xe13, 0xe12, 0x1c71, 0x1b45,
+ 0x1b47, 0x3689, 0x38f2, 0x38e1, 0x38e0, 0x38f1, 0x3688, 0x6d1b,
+ 0x71e0, 0x6d19, 0x71e7, 0xe3cd, 0xda35, 0xda30, 0xe3c3, 0x1b469,
+ 0x1b462, 0x1c798, 0x1b463, 0x1c799, 0x38f08, 0x38f09, 0x38f0a, 0x6d1a0,
+ 0x6d1a3, 0x6d1a1, 0xda345, 0xda344, 0xe3c2d, 0xe3c2f, 0xe3c2e, 0x38f0b2,
+ 0x71e160, 0x71e162, 0x71e166, 0x71e161, 0xe3c2ce, 0xe3c2c6, 0xe3c2c7, 0x1C7859E,
+ 0x38F0B3F, 0x38F0B3E,
+};
+
+static const uint16_t table_9_vlc_run[NB_VLC_TABLE_9] = {
+ 1, 1, 1, 1, 12, 1, 32, 160,
+ 1, 1, 1, 320, 1, 1, 80, 120,
+ 1, 1, 100, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1
+};
+
+static const uint8_t table_9_vlc_level[NB_VLC_TABLE_9] = {
+ 0, 1, 2, 3, 0, 4, 0, 0,
+ 5, 7, 6, 0, 9, 8, 0, 0,
+ 11, 12, 0, 10, 13, 14, 17, 15,
+ 16, 18, 22, 21, 20, 19, 25, 23,
+ 24, 27, 31, 29, 28, 30, 26, 33,
+ 34, 32, 35, 39, 37, 36, 38, 42,
+ 40, 43, 41, 44, 45, 46, 47, 48,
+ 50, 49, 52, 51, 53, 55, 54, 56,
+ 57, 59, 60, 58, 61, 62, 63, 64,
+ 64, 64,
+};
+
+#define NB_VLC_TABLE_17 263
+
+static const uint32_t table_17_vlc_bits[NB_VLC_TABLE_17] = {
+ 0, 0x2, 0x7, 0x19, 0x30, 0x36, 0x6f, 0x63,
+ 0x69, 0x6b, 0xd1, 0xd4, 0xdc, 0x189, 0x18a, 0x1a0,
+ 0x1ab, 0x377, 0x310, 0x316, 0x343, 0x354, 0x375, 0x623,
+ 0x684, 0x685, 0x6ab, 0x6ec, 0xddb, 0xc5c, 0xc5e, 0xc44,
+ 0xd55, 0xdd1, 0xdd3, 0x1bb5, 0x188b, 0x18bb, 0x18bf, 0x1aa8,
+ 0x1ba0, 0x1ba5, 0x1ba4, 0x3115, 0x3175, 0x317d, 0x3553, 0x3768,
+ 0x6e87, 0x6ed3, 0x62e8, 0x62f8, 0x6228, 0x6aa4, 0x6e85, 0xc453,
+ 0xc5d3, 0xc5f3, 0xdda4, 0xdd08, 0xdd0c, 0x1bb4b, 0x1bb4a, 0x18ba5,
+ 0x18be5, 0x1aa95, 0x1aa97, 0x188a4, 0x1ba13, 0x31748, 0x317c8, 0x35528,
+ 0x3552c, 0x37424, 0x37434, 0x37436, 0x62294, 0x62e92, 0x62f92, 0x6aa52,
+ 0x6aa5a, 0x6e86a, 0x6e86e, 0x6e84a, 0xc452a, 0xc5d27, 0xc5f26, 0xd54a6,
+ 0xd54b6, 0xdd096, 0xdd0d6, 0xdd0de, 0x188a56, 0x18ba4d, 0x18be4e, 0x18be4f,
+ 0x1aa96e, 0x1ba12e, 0x1ba12f, 0x1ba1af, 0x1ba1bf, 0x37435d, 0x37437d, 0x317498,
+ 0x35529c, 0x35529d, 0x3552de, 0x3552df, 0x62e933, 0x62295d, 0x6aa53d, 0x6aa53f,
+ 0x6aa53e, 0x6e86b9, 0x6e86f8, 0xd54a79, 0xc5d265, 0xc452b8, 0xdd0d71, 0xd54a78,
+ 0xdd0d70, 0xdd0df2, 0xdd0df3, 0x188a5f6, 0x188a5f5, 0x188a5f4, 0x188a5f3, 0x188a5f2,
+ 0x188a5f1, 0x188a5f0, 0x188a5ef, 0x188a5ee, 0x188a5ed, 0x188a5aa, 0x188a5e3, 0x188a5df,
+ 0x188a589, 0x188a5dd, 0x188a578, 0x188a5e0, 0x188a588, 0x188a5d6, 0x188a5db, 0x188a5e1,
+ 0x188a587, 0x188a59a, 0x188a5c4, 0x188a5ec, 0x188a586, 0x188a573, 0x188a59c, 0x188a5c8,
+ 0x188a5fb, 0x188a5a1, 0x188a5eb, 0x188a5a8, 0x188a584, 0x188a5d2, 0x188a599, 0x188a598,
+ 0x188a583, 0x18ba4c9, 0x188a5d0, 0x188a594, 0x188a582, 0x188a5cb, 0x188a5d8, 0x188a5e7,
+ 0x188a581, 0x188a5ea, 0x188a5a9, 0x188a5a6, 0x188a580, 0x188a5a0, 0x188a59d, 0x188a5c3,
+ 0x188a57f, 0x188a5c0, 0x188a5de, 0x188a5d4, 0x188a57e, 0x188a5c2, 0x188a592, 0x188a5cd,
+ 0x188a57d, 0x188a5a3, 0x188a5e8, 0x188a5a2, 0x188a57c, 0x188a58e, 0x188a5b3, 0x188a5b2,
+ 0x188a5b1, 0x188a5b0, 0x188a5af, 0x188a5ae, 0x188a5ad, 0x188a5ac, 0x188a5ab, 0x188a5da,
+ 0x188a5e4, 0x188a5e5, 0x188a5d9, 0x188a5b5, 0x188a5bc, 0x188a5bd, 0x188a5e9, 0x188a5cc,
+ 0x188a585, 0x188a5d3, 0x188a5e2, 0x188a595, 0x188a596, 0x188a5b8, 0x188a590, 0x188a5c9,
+ 0x188a5a4, 0x188a5e6, 0x188a5a5, 0x188a5ce, 0x188a5bf, 0x188a572, 0x188a59b, 0x188a5be,
+ 0x188a5c7, 0x188a5ca, 0x188a5d5, 0x188a57b, 0x188a58d, 0x188a58c, 0x188a58b, 0x188a58a,
+ 0x18ba4c8, 0x188a5c5, 0x188a5fa, 0x188a5bb, 0x188a5c1, 0x188a5cf, 0x188a5b9, 0x188a5b6,
+ 0x188a597, 0x188a5fe, 0x188a5d7, 0x188a5ba, 0x188a591, 0x188a5c6, 0x188a5dc, 0x188a57a,
+ 0x188a59f, 0x188a5f9, 0x188a5b4, 0x188a5a7, 0x188a58f, 0x188a5fd, 0x188a5b7, 0x188a593,
+ 0x188a59e, 0x188a5f8, 0x188a5ff, 0x188a5fc, 0x188a579, 0x188a5f7, 0x3114ba2,
+};
+
+static const uint8_t table_17_vlc_len[NB_VLC_TABLE_17] = {
+ 1, 2, 3, 5, 6, 6, 7, 7,
+ 7, 7, 8, 8, 8, 9, 9, 9,
+ 9, 10, 10, 10, 10, 10, 10, 11,
+ 11, 11, 11, 11, 12, 12, 12, 12,
+ 12, 12, 12, 13, 13, 13, 13, 13,
+ 13, 13, 13, 14, 14, 14, 14, 14,
+ 15, 15, 15, 15, 15, 15, 15, 16,
+ 16, 16, 16, 16, 16, 17, 17, 17,
+ 17, 17, 17, 17, 17, 18, 18, 18,
+ 18, 18, 18, 18, 19, 19, 19, 19,
+ 19, 19, 19, 19, 20, 20, 20, 20,
+ 20, 20, 20, 20, 21, 21, 21, 21,
+ 21, 21, 21, 21, 21, 22, 22, 22,
+ 22, 22, 22, 22, 23, 23, 23, 23,
+ 23, 23, 23, 24, 24, 24, 24, 24,
+ 24, 24, 24, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 26,
+};
+
+static const uint16_t table_17_vlc_run[NB_VLC_TABLE_17] = {
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 12, 1, 20, 1, 1, 1, 32, 1,
+ 1, 1, 1, 1, 60, 1, 1, 1,
+ 1, 100, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 180, 1,
+ 1, 320, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1,
+};
+
+static const uint16_t table_17_vlc_level[NB_VLC_TABLE_17] = {
+ 0, 1, 2, 3, 4, 5, 8, 6,
+ 0, 7, 0, 9, 10, 11, 0, 12,
+ 13, 18, 14, 15, 0, 16, 17, 19,
+ 20, 0, 21, 22, 29, 24, 25, 23,
+ 26, 27, 28, 35, 30, 31, 0, 32,
+ 33, 0, 34, 36, 37, 38, 39, 40,
+ 46, 47, 42, 43, 41, 44, 45, 48,
+ 49, 50, 53, 51, 52, 61, 60, 55,
+ 56, 57, 58, 54, 59, 62, 63, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72,
+ 73, 75, 76, 74, 77, 78, 79, 80,
+ 81, 82, 83, 84, 85, 86, 87, 88,
+ 89, 90, 91, 92, 93, 99, 100, 94,
+ 95, 96, 97, 98, 102, 101, 103, 105,
+ 104, 106, 107, 111, 109, 108, 113, 110,
+ 112, 114, 115, 225, 189, 188, 203, 202,
+ 197, 207, 169, 223, 159, 235, 152, 192,
+ 179, 201, 172, 149, 178, 120, 219, 150,
+ 127, 211, 125, 158, 247, 238, 163, 228,
+ 183, 217, 168, 122, 128, 249, 187, 186,
+ 136, 181, 255, 230, 135, 233, 222, 145,
+ 134, 167, 248, 209, 243, 216, 164, 140,
+ 157, 239, 191, 251, 156, 139, 242, 133,
+ 162, 213, 165, 212, 227, 198, 236, 234,
+ 117, 215, 124, 123, 254, 253, 148, 218,
+ 146, 147, 224, 143, 184, 185, 166, 132,
+ 129, 250, 151, 119, 193, 176, 245, 229,
+ 206, 144, 208, 137, 241, 237, 190, 240,
+ 131, 232, 252, 171, 205, 204, 118, 214,
+ 180, 126, 182, 175, 141, 138, 177, 153,
+ 194, 160, 121, 174, 246, 130, 200, 170,
+ 221, 196, 142, 210, 199, 155, 154, 244,
+ 220, 195, 161, 231, 173, 226, 116,
+};
+
+static const uint32_t table_18_vlc_bits[NB_VLC_TABLE_18] = {
+ 0, 0x2, 0x7, 0x19, 0x30, 0x36, 0x6f, 0x63,
+ 0x69, 0x6b, 0xd1, 0xd4, 0xdc, 0x189, 0x18a, 0x1a0,
+ 0x1ab, 0x377, 0x310, 0x316, 0x343, 0x354, 0x375, 0x623,
+ 0x684, 0x685, 0x6ab, 0x6ec, 0xddb, 0xc5c, 0xc5e, 0xc44,
+ 0xd55, 0xdd1, 0xdd3, 0x1bb5, 0x188b, 0x18bb, 0x18bf, 0x1aa8,
+ 0x1ba0, 0x1ba5, 0x1ba4, 0x3115, 0x3175, 0x317d, 0x3553, 0x3768,
+ 0x6e87, 0x6ed3, 0x62e8, 0x62f8, 0x6228, 0x6aa4, 0x6e85, 0xc453,
+ 0xc5d3, 0xc5f3, 0xdda4, 0xdd08, 0xdd0c, 0x1bb4b, 0x1bb4a, 0x18ba5,
+ 0x18be5, 0x1aa95, 0x1aa97, 0x188a4, 0x1ba13, 0x31748, 0x317c8, 0x35528,
+ 0x3552c, 0x37424, 0x37434, 0x37436, 0x62294, 0x62e92, 0x62f92, 0x6aa52,
+ 0x6aa5a, 0x6e86a, 0x6e86e, 0x6e84a, 0xc452a, 0xc5d27, 0xc5f26, 0xd54a6,
+ 0xd54b6, 0xdd096, 0xdd0d6, 0xdd0de, 0x188a56, 0x18ba4d, 0x18be4e, 0x18be4f,
+ 0x1aa96e, 0x1ba12e, 0x1ba12f, 0x1ba1af, 0x1ba1bf, 0x37435d, 0x37437d, 0x317498,
+ 0x35529c, 0x35529d, 0x3552de, 0x3552df, 0x62e933, 0x62295d, 0x6aa53d, 0x6aa53f,
+ 0x6aa53e, 0x6e86b9, 0x6e86f8, 0xd54a79, 0xc5d265, 0xc452b8, 0xdd0d71, 0xd54a78,
+ 0xdd0d70, 0xdd0df2, 0xdd0df3, 0x188a5f6, 0x188a5f5, 0x188a5f4, 0x188a5f3, 0x188a5f2,
+ 0x188a5f1, 0x188a5f0, 0x188a5ef, 0x188a5ee, 0x188a5ed, 0x188a5aa, 0x188a5e3, 0x188a5df,
+ 0x188a589, 0x188a5dd, 0x188a578, 0x188a5e0, 0x188a588, 0x188a5d6, 0x188a5db, 0x188a5e1,
+ 0x188a587, 0x188a59a, 0x188a5c4, 0x188a5ec, 0x188a586, 0x188a573, 0x188a59c, 0x188a5c8,
+ 0x188a5fb, 0x188a5a1, 0x188a5eb, 0x188a5a8, 0x188a584, 0x188a5d2, 0x188a599, 0x188a598,
+ 0x188a583, 0x18ba4c9, 0x188a5d0, 0x188a594, 0x188a582, 0x188a5cb, 0x188a5d8, 0x188a5e7,
+ 0x188a581, 0x188a5ea, 0x188a5a9, 0x188a5a6, 0x188a580, 0x188a5a0, 0x188a59d, 0x188a5c3,
+ 0x188a57f, 0x188a5c0, 0x188a5de, 0x188a5d4, 0x188a57e, 0x188a5c2, 0x188a592, 0x188a5cd,
+ 0x188a57d, 0x188a5a3, 0x188a5e8, 0x188a5a2, 0x188a57c, 0x188a58e, 0x188a5b3, 0x188a5b2,
+ 0x188a5b1, 0x188a5b0, 0x188a5af, 0x188a5ae, 0x188a5ad, 0x188a5ac, 0x188a5ab, 0x188a5da,
+ 0x188a5e4, 0x188a5e5, 0x188a5d9, 0x188a5b5, 0x188a5bc, 0x188a5bd, 0x188a5e9, 0x188a5cc,
+ 0x188a585, 0x188a5d3, 0x188a5e2, 0x188a595, 0x188a596, 0x188a5b8, 0x188a590, 0x188a5c9,
+ 0x188a5a4, 0x188a5e6, 0x188a5a5, 0x188a5ce, 0x188a5bf, 0x188a572, 0x188a59b, 0x188a5be,
+ 0x188a5c7, 0x188a5ca, 0x188a5d5, 0x188a57b, 0x188a58d, 0x188a58c, 0x188a58b, 0x188a58a,
+ 0x18ba4c8, 0x188a5c5, 0x188a5fa, 0x188a5bb, 0x188a5c1, 0x188a5cf, 0x188a5b9, 0x188a5b6,
+ 0x188a597, 0x188a5fe, 0x188a5d7, 0x188a5ba, 0x188a591, 0x188a5c6, 0x188a5dc, 0x188a57a,
+ 0x188a59f, 0x188a5f9, 0x188a5b4, 0x188a5a7, 0x188a58f, 0x188a5fd, 0x188a5b7, 0x188a593,
+ 0x188a59e, 0x188a5f8, 0x188a5ff, 0x188a5fc, 0x188a579, 0x188a5f7, 0x3114ba2, 0x3114ba3,
+};
+
+static const uint8_t table_18_vlc_len[NB_VLC_TABLE_18] = {
+ 1, 2, 3, 5, 6, 6, 7, 7,
+ 7, 7, 8, 8, 8, 9, 9, 9,
+ 9, 10, 10, 10, 10, 10, 10, 11,
+ 11, 11, 11, 11, 12, 12, 12, 12,
+ 12, 12, 12, 13, 13, 13, 13, 13,
+ 13, 13, 13, 14, 14, 14, 14, 14,
+ 15, 15, 15, 15, 15, 15, 15, 16,
+ 16, 16, 16, 16, 16, 17, 17, 17,
+ 17, 17, 17, 17, 17, 18, 18, 18,
+ 18, 18, 18, 18, 19, 19, 19, 19,
+ 19, 19, 19, 19, 20, 20, 20, 20,
+ 20, 20, 20, 20, 21, 21, 21, 21,
+ 21, 21, 21, 21, 21, 22, 22, 22,
+ 22, 22, 22, 22, 23, 23, 23, 23,
+ 23, 23, 23, 24, 24, 24, 24, 24,
+ 24, 24, 24, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 26, 26,
+};
+
+static const uint16_t table_18_vlc_run[NB_VLC_TABLE_18] = {
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 12, 1, 20, 1, 1, 1, 32, 1,
+ 1, 1, 1, 1, 60, 1, 1, 1,
+ 1, 100, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 180, 1,
+ 1, 320, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 2,
+};
+
+static const uint8_t table_18_vlc_level[NB_VLC_TABLE_18] = {
+ 0, 1, 2, 3, 4, 5, 8, 6,
+ 0, 7, 0, 9, 10, 11, 0, 12,
+ 13, 18, 14, 15, 0, 16, 17, 19,
+ 20, 0, 21, 22, 29, 24, 25, 23,
+ 26, 27, 28, 35, 30, 31, 0, 32,
+ 33, 0, 34, 36, 37, 38, 39, 40,
+ 46, 47, 42, 43, 41, 44, 45, 48,
+ 49, 50, 53, 51, 52, 61, 60, 55,
+ 56, 57, 58, 54, 59, 62, 63, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72,
+ 73, 75, 76, 74, 77, 78, 79, 80,
+ 81, 82, 83, 84, 85, 86, 87, 88,
+ 89, 90, 91, 92, 93, 99, 100, 94,
+ 95, 96, 97, 98, 102, 101, 103, 105,
+ 104, 106, 107, 111, 109, 108, 113, 110,
+ 112, 114, 115, 225, 189, 188, 203, 202,
+ 197, 207, 169, 223, 159, 235, 152, 192,
+ 179, 201, 172, 149, 178, 120, 219, 150,
+ 127, 211, 125, 158, 247, 238, 163, 228,
+ 183, 217, 168, 122, 128, 249, 187, 186,
+ 136, 181, 255, 230, 135, 233, 222, 145,
+ 134, 167, 248, 209, 243, 216, 164, 140,
+ 157, 239, 191, 251, 156, 139, 242, 133,
+ 162, 213, 165, 212, 227, 198, 236, 234,
+ 117, 215, 124, 123, 254, 253, 148, 218,
+ 146, 147, 224, 143, 184, 185, 166, 132,
+ 129, 250, 151, 119, 193, 176, 245, 229,
+ 206, 144, 208, 137, 241, 237, 190, 240,
+ 131, 232, 252, 171, 205, 204, 118, 214,
+ 180, 126, 182, 175, 141, 138, 177, 153,
+ 194, 160, 121, 174, 246, 130, 200, 170,
+ 221, 196, 142, 210, 199, 155, 154, 244,
+ 220, 195, 161, 231, 173, 226, 116, 255,
+};
+
+av_cold int ff_cfhd_init_vlcs(CFHDContext *s)
+{
+ int i, j, ret = 0;
+ uint32_t new_cfhd_vlc_bits[NB_VLC_TABLE_18 * 2];
+ uint8_t new_cfhd_vlc_len[NB_VLC_TABLE_18 * 2];
+ uint16_t new_cfhd_vlc_run[NB_VLC_TABLE_18 * 2];
+ int16_t new_cfhd_vlc_level[NB_VLC_TABLE_18 * 2];
+
+ /** Similar to dv.c, generate signed VLC tables **/
+
+ /* Table 9 */
+ for (i = 0, j = 0; i < NB_VLC_TABLE_9; i++, j++) {
+ new_cfhd_vlc_bits[j] = table_9_vlc_bits[i];
+ new_cfhd_vlc_len[j] = table_9_vlc_len[i];
+ new_cfhd_vlc_run[j] = table_9_vlc_run[i];
+ new_cfhd_vlc_level[j] = table_9_vlc_level[i];
+
+ /* Don't include the zero level nor escape bits */
+ if (table_9_vlc_level[i] &&
+ new_cfhd_vlc_bits[j] != table_9_vlc_bits[NB_VLC_TABLE_9-1]) {
+ new_cfhd_vlc_bits[j] <<= 1;
+ new_cfhd_vlc_len[j]++;
+ j++;
+ new_cfhd_vlc_bits[j] = (table_9_vlc_bits[i] << 1) | 1;
+ new_cfhd_vlc_len[j] = table_9_vlc_len[i] + 1;
+ new_cfhd_vlc_run[j] = table_9_vlc_run[i];
+ new_cfhd_vlc_level[j] = -table_9_vlc_level[i];
+ }
+ }
+
+ ret = init_vlc(&s->vlc_9, VLC_BITS, j, new_cfhd_vlc_len,
+ 1, 1, new_cfhd_vlc_bits, 4, 4, 0);
+ if (ret < 0)
+ goto end;
+ for (i = 0; i < s->vlc_9.table_size; i++) {
+ int code = s->vlc_9.table[i][0];
+ int len = s->vlc_9.table[i][1];
+ int level, run;
+
+ if (len < 0) { // more bits needed
+ run = 0;
+ level = code;
+ } else {
+ run = new_cfhd_vlc_run[code];
+ level = new_cfhd_vlc_level[code];
+ }
+ s->table_9_rl_vlc[i].len = len;
+ s->table_9_rl_vlc[i].level = level;
+ s->table_9_rl_vlc[i].run = run;
+ }
+
+ /* Table 18 */
+ for (i = 0, j = 0; i < NB_VLC_TABLE_18; i++, j++) {
+ new_cfhd_vlc_bits[j] = table_18_vlc_bits[i];
+ new_cfhd_vlc_len[j] = table_18_vlc_len[i];
+ new_cfhd_vlc_run[j] = table_18_vlc_run[i];
+ new_cfhd_vlc_level[j] = table_18_vlc_level[i];
+
+ /* Don't include the zero level nor escape bits */
+ if (table_18_vlc_level[i] &&
+ new_cfhd_vlc_bits[j] != table_18_vlc_bits[NB_VLC_TABLE_18-1]) {
+ new_cfhd_vlc_bits[j] <<= 1;
+ new_cfhd_vlc_len[j]++;
+ j++;
+ new_cfhd_vlc_bits[j] = (table_18_vlc_bits[i] << 1) | 1;
+ new_cfhd_vlc_len[j] = table_18_vlc_len[i] + 1;
+ new_cfhd_vlc_run[j] = table_18_vlc_run[i];
+ new_cfhd_vlc_level[j] = -table_18_vlc_level[i];
+ }
+ }
+
+ ret = init_vlc(&s->vlc_18, VLC_BITS, j, new_cfhd_vlc_len,
+ 1, 1, new_cfhd_vlc_bits, 4, 4, 0);
+ if (ret < 0)
+ goto end;
+ av_assert0(s->vlc_18.table_size == 4572);
+
+ for (i = 0; i < s->vlc_18.table_size; i++) {
+ int code = s->vlc_18.table[i][0];
+ int len = s->vlc_18.table[i][1];
+ int level, run;
+
+ if (len < 0) { // more bits needed
+ run = 0;
+ level = code;
+ } else {
+ run = new_cfhd_vlc_run[code];
+ level = new_cfhd_vlc_level[code];
+ }
+ s->table_18_rl_vlc[i].len = len;
+ s->table_18_rl_vlc[i].level = level;
+ s->table_18_rl_vlc[i].run = run;
+ }
+
+end:
+ return ret;
+}
diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c
index e814507..5d5568f 100644
--- a/libavcodec/codec_desc.c
+++ b/libavcodec/codec_desc.c
@@ -1521,6 +1521,12 @@ static const AVCodecDescriptor codec_descriptors[] = {
.props = AV_CODEC_PROP_LOSSLESS,
.mime_types= MT("image/png"),
},
+ {
+ .id = AV_CODEC_ID_CFHD,
+ .type = AVMEDIA_TYPE_VIDEO,
+ .name = "cfhd",
+ .long_name = NULL_IF_CONFIG_SMALL("Cineform HD"),
+ },
/* various PCM "codecs" */
{
--
1.9.1
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