[FFmpeg-cvslog] utvideodec: Support UQY2
Paul B Mahol
git at videolan.org
Sat Oct 28 20:13:09 EEST 2017
ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Mon Apr 10 11:08:44 2017 +0200| [c5230955640cb65101a5f8add83abee0410583eb] | committer: Luca Barbato
utvideodec: Support UQY2
Signed-off-by: Luca Barbato <lu_zero at gentoo.org>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c5230955640cb65101a5f8add83abee0410583eb
---
libavcodec/utvideo.c | 6 ++
libavcodec/utvideo.h | 4 +-
libavcodec/utvideodec.c | 282 +++++++++++++++++++++++++++++++++++++++++-------
libavformat/riff.c | 1 +
4 files changed, 253 insertions(+), 40 deletions(-)
diff --git a/libavcodec/utvideo.c b/libavcodec/utvideo.c
index 35e927ca2d..556b4de602 100644
--- a/libavcodec/utvideo.c
+++ b/libavcodec/utvideo.c
@@ -39,3 +39,9 @@ int ff_ut_huff_cmp_len(const void *a, const void *b)
const HuffEntry *aa = a, *bb = b;
return (aa->len - bb->len)*256 + aa->sym - bb->sym;
}
+
+int ff_ut10_huff_cmp_len(const void *a, const void *b)
+{
+ const HuffEntry *aa = a, *bb = b;
+ return (aa->len - bb->len) * 1024 + aa->sym - bb->sym;
+}
diff --git a/libavcodec/utvideo.h b/libavcodec/utvideo.h
index c7f54145f1..bc83a28d43 100644
--- a/libavcodec/utvideo.h
+++ b/libavcodec/utvideo.h
@@ -76,6 +76,7 @@ typedef struct UtvideoContext {
int compression;
int interlaced;
int frame_pred;
+ int pro;
ptrdiff_t slice_stride;
uint8_t *slice_bits, *slice_buffer[4];
@@ -83,12 +84,13 @@ typedef struct UtvideoContext {
} UtvideoContext;
typedef struct HuffEntry {
- uint8_t sym;
+ uint16_t sym;
uint8_t len;
uint32_t code;
} HuffEntry;
/* Compare huffman tree nodes */
int ff_ut_huff_cmp_len(const void *a, const void *b);
+int ff_ut10_huff_cmp_len(const void *a, const void *b);
#endif /* AVCODEC_UTVIDEO_H */
diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c
index 2aaf861e62..47f9de86c4 100644
--- a/libavcodec/utvideodec.c
+++ b/libavcodec/utvideodec.c
@@ -37,6 +37,50 @@
#include "thread.h"
#include "utvideo.h"
+static int build_huff10(const uint8_t *src, VLC *vlc, int *fsym)
+{
+ int i;
+ HuffEntry he[1024];
+ int last;
+ uint32_t codes[1024];
+ uint8_t bits[1024];
+ uint16_t syms[1024];
+ uint32_t code;
+
+ *fsym = -1;
+ for (i = 0; i < 1024; i++) {
+ he[i].sym = i;
+ he[i].len = *src++;
+ }
+ qsort(he, 1024, sizeof(*he), ff_ut10_huff_cmp_len);
+
+ if (!he[0].len) {
+ *fsym = he[0].sym;
+ return 0;
+ }
+
+ last = 1023;
+ while (he[last].len == 255 && last)
+ last--;
+
+ if (he[last].len > 32) {
+ return -1;
+ }
+
+ code = 1;
+ for (i = last; i >= 0; i--) {
+ codes[i] = code >> (32 - he[i].len);
+ bits[i] = he[i].len;
+ syms[i] = he[i].sym;
+ code += 0x80000000u >> (he[i].len - 1);
+ }
+
+ return ff_init_vlc_sparse(vlc, FFMIN(he[last].len, 11), last + 1,
+ bits, sizeof(*bits), sizeof(*bits),
+ codes, sizeof(*codes), sizeof(*codes),
+ syms, sizeof(*syms), sizeof(*syms), 0);
+}
+
static int build_huff(const uint8_t *src, VLC *vlc, int *fsym)
{
int i;
@@ -79,6 +123,111 @@ static int build_huff(const uint8_t *src, VLC *vlc, int *fsym)
syms, sizeof(*syms), sizeof(*syms), 0);
}
+static int decode_plane10(UtvideoContext *c, int plane_no,
+ uint16_t *dst, int step, int stride,
+ int width, int height,
+ const uint8_t *src, const uint8_t *huff,
+ int use_pred)
+{
+ BitstreamContext bc;
+ int i, j, slice, pix, ret;
+ int sstart, send;
+ VLC vlc;
+ int prev, fsym;
+
+ if ((ret = build_huff10(huff, &vlc, &fsym)) < 0) {
+ av_log(c->avctx, AV_LOG_ERROR, "Cannot build Huffman codes\n");
+ return ret;
+ }
+ if (fsym >= 0) { // build_huff reported a symbol to fill slices with
+ send = 0;
+ for (slice = 0; slice < c->slices; slice++) {
+ uint16_t *dest;
+
+ sstart = send;
+ send = (height * (slice + 1) / c->slices);
+ dest = dst + sstart * stride;
+
+ prev = 0x200;
+ for (j = sstart; j < send; j++) {
+ for (i = 0; i < width * step; i += step) {
+ pix = fsym;
+ if (use_pred) {
+ prev += pix;
+ prev &= 0x3FF;
+ pix = prev;
+ }
+ dest[i] = pix;
+ }
+ dest += stride;
+ }
+ }
+ return 0;
+ }
+
+ send = 0;
+ for (slice = 0; slice < c->slices; slice++) {
+ uint16_t *dest;
+ int slice_data_start, slice_data_end, slice_size;
+
+ sstart = send;
+ send = (height * (slice + 1) / c->slices);
+ dest = dst + sstart * stride;
+
+ // slice offset and size validation was done earlier
+ slice_data_start = slice ? AV_RL32(src + slice * 4 - 4) : 0;
+ slice_data_end = AV_RL32(src + slice * 4);
+ slice_size = slice_data_end - slice_data_start;
+
+ if (!slice_size) {
+ av_log(c->avctx, AV_LOG_ERROR, "Plane has more than one symbol "
+ "yet a slice has a length of zero.\n");
+ goto fail;
+ }
+
+ memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
+ slice_size);
+ memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+ c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
+ (uint32_t *) c->slice_bits,
+ (slice_data_end - slice_data_start + 3) >> 2);
+ bitstream_init8(&bc, c->slice_bits, slice_size);
+
+ prev = 0x200;
+ for (j = sstart; j < send; j++) {
+ for (i = 0; i < width * step; i += step) {
+ if (bitstream_bits_left(&bc) <= 0) {
+ av_log(c->avctx, AV_LOG_ERROR,
+ "Slice decoding ran out of bits\n");
+ goto fail;
+ }
+ pix = bitstream_read_vlc(&bc, vlc.table, vlc.bits, 3);
+ if (pix < 0) {
+ av_log(c->avctx, AV_LOG_ERROR, "Decoding error\n");
+ goto fail;
+ }
+ if (use_pred) {
+ prev += pix;
+ prev &= 0x3FF;
+ pix = prev;
+ }
+ dest[i] = pix;
+ }
+ dest += stride;
+ }
+ if (bitstream_bits_left(&bc) > 32)
+ av_log(c->avctx, AV_LOG_WARNING,
+ "%d bits left after decoding slice\n", bitstream_bits_left(&bc));
+ }
+
+ ff_free_vlc(&vlc);
+
+ return 0;
+fail:
+ ff_free_vlc(&vlc);
+ return AVERROR_INVALIDDATA;
+}
+
static int decode_plane(UtvideoContext *c, int plane_no,
uint8_t *dst, int step, ptrdiff_t stride,
int width, int height,
@@ -350,35 +499,68 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
/* parse plane structure to get frame flags and validate slice offsets */
bytestream2_init(&gb, buf, buf_size);
- for (i = 0; i < c->planes; i++) {
- plane_start[i] = gb.buffer;
- if (bytestream2_get_bytes_left(&gb) < 256 + 4 * c->slices) {
- av_log(avctx, AV_LOG_ERROR, "Insufficient data for a plane\n");
+ if (c->pro) {
+ if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) {
+ av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n");
return AVERROR_INVALIDDATA;
}
- bytestream2_skipu(&gb, 256);
- slice_start = 0;
- slice_end = 0;
- for (j = 0; j < c->slices; j++) {
- slice_end = bytestream2_get_le32u(&gb);
- if (slice_end < 0 || slice_end < slice_start ||
- bytestream2_get_bytes_left(&gb) < slice_end) {
- av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n");
+ c->frame_info = bytestream2_get_le32u(&gb);
+ c->slices = ((c->frame_info >> 16) & 0xff) + 1;
+ for (i = 0; i < c->planes; i++) {
+ plane_start[i] = gb.buffer;
+ if (bytestream2_get_bytes_left(&gb) < 1024 + 4 * c->slices) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient data for a plane\n");
+ return AVERROR_INVALIDDATA;
+ }
+ slice_start = 0;
+ slice_end = 0;
+ for (j = 0; j < c->slices; j++) {
+ slice_end = bytestream2_get_le32u(&gb);
+ if (slice_end < 0 || slice_end < slice_start ||
+ bytestream2_get_bytes_left(&gb) < slice_end) {
+ av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n");
+ return AVERROR_INVALIDDATA;
+ }
+ slice_size = slice_end - slice_start;
+ slice_start = slice_end;
+ max_slice_size = FFMAX(max_slice_size, slice_size);
+ }
+ plane_size = slice_end;
+ bytestream2_skipu(&gb, plane_size);
+ bytestream2_skipu(&gb, 1024);
+ }
+ plane_start[c->planes] = gb.buffer;
+ } else {
+ for (i = 0; i < c->planes; i++) {
+ plane_start[i] = gb.buffer;
+ if (bytestream2_get_bytes_left(&gb) < 256 + 4 * c->slices) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient data for a plane\n");
return AVERROR_INVALIDDATA;
}
- slice_size = slice_end - slice_start;
- slice_start = slice_end;
- max_slice_size = FFMAX(max_slice_size, slice_size);
+ bytestream2_skipu(&gb, 256);
+ slice_start = 0;
+ slice_end = 0;
+ for (j = 0; j < c->slices; j++) {
+ slice_end = bytestream2_get_le32u(&gb);
+ if (slice_end < 0 || slice_end < slice_start ||
+ bytestream2_get_bytes_left(&gb) < slice_end) {
+ av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n");
+ return AVERROR_INVALIDDATA;
+ }
+ slice_size = slice_end - slice_start;
+ slice_start = slice_end;
+ max_slice_size = FFMAX(max_slice_size, slice_size);
+ }
+ plane_size = slice_end;
+ bytestream2_skipu(&gb, plane_size);
}
- plane_size = slice_end;
- bytestream2_skipu(&gb, plane_size);
- }
- plane_start[c->planes] = gb.buffer;
- if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) {
- av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n");
- return AVERROR_INVALIDDATA;
+ plane_start[c->planes] = gb.buffer;
+ if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) {
+ av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n");
+ return AVERROR_INVALIDDATA;
+ }
+ c->frame_info = bytestream2_get_le32u(&gb);
}
- c->frame_info = bytestream2_get_le32u(&gb);
av_log(avctx, AV_LOG_DEBUG, "frame information flags %"PRIX32"\n",
c->frame_info);
@@ -464,6 +646,15 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
}
}
break;
+ case AV_PIX_FMT_YUV422P10:
+ for (i = 0; i < 3; i++) {
+ ret = decode_plane10(c, i, (uint16_t *)frame.f->data[i], 1, frame.f->linesize[i] / 2,
+ avctx->width >> !!i, avctx->height,
+ plane_start[i], plane_start[i + 1] - 1024, c->frame_pred == PRED_LEFT);
+ if (ret)
+ return ret;
+ }
+ break;
}
frame.f->key_frame = 1;
@@ -484,28 +675,37 @@ static av_cold int decode_init(AVCodecContext *avctx)
ff_bswapdsp_init(&c->bdsp);
- if (avctx->extradata_size < 16) {
+ if (avctx->extradata_size >= 16) {
+ av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
+ avctx->extradata[3], avctx->extradata[2],
+ avctx->extradata[1], avctx->extradata[0]);
+ av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
+ AV_RB32(avctx->extradata + 4));
+ c->frame_info_size = AV_RL32(avctx->extradata + 8);
+ c->flags = AV_RL32(avctx->extradata + 12);
+
+ if (c->frame_info_size != 4)
+ avpriv_request_sample(avctx, "Frame info not 4 bytes");
+ av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags);
+ c->slices = (c->flags >> 24) + 1;
+ c->compression = c->flags & 1;
+ c->interlaced = c->flags & 0x800;
+ } else if (avctx->extradata_size == 8) {
+ av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
+ avctx->extradata[3], avctx->extradata[2],
+ avctx->extradata[1], avctx->extradata[0]);
+ av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
+ AV_RB32(avctx->extradata + 4));
+ c->interlaced = 0;
+ c->pro = 1;
+ c->frame_info_size = 4;
+ } else {
av_log(avctx, AV_LOG_ERROR,
"Insufficient extradata size %d, should be at least 16\n",
avctx->extradata_size);
return AVERROR_INVALIDDATA;
}
- av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
- avctx->extradata[3], avctx->extradata[2],
- avctx->extradata[1], avctx->extradata[0]);
- av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
- AV_RB32(avctx->extradata + 4));
- c->frame_info_size = AV_RL32(avctx->extradata + 8);
- c->flags = AV_RL32(avctx->extradata + 12);
-
- if (c->frame_info_size != 4)
- avpriv_request_sample(avctx, "Frame info not 4 bytes");
- av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags);
- c->slices = (c->flags >> 24) + 1;
- c->compression = c->flags & 1;
- c->interlaced = c->flags & 0x800;
-
c->slice_bits_size = 0;
switch (avctx->codec_tag) {
@@ -527,6 +727,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_YUV422P;
avctx->colorspace = AVCOL_SPC_BT470BG;
break;
+ case MKTAG('U', 'Q', 'Y', '2'):
+ c->planes = 3;
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
+ break;
case MKTAG('U', 'L', 'H', '0'):
c->planes = 3;
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
diff --git a/libavformat/riff.c b/libavformat/riff.c
index 49b8c762d6..69dabc0d52 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -342,6 +342,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '2') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'H', '0') },
{ AV_CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'H', '2') },
+ { AV_CODEC_ID_UTVIDEO, MKTAG('U', 'Q', 'Y', '2') },
{ AV_CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
{ AV_CODEC_ID_ESCAPE130, MKTAG('E', '1', '3', '0') },
{ AV_CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },
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