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prores: store and retrieve extended colourspace information

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Based on the patch by Phil Barrett.
This commit is contained in:
Kostya Shishkov 2012-02-28 19:44:07 +01:00
parent c7084182e8
commit 12b812d2e5
4 changed files with 9 additions and 5 deletions
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4
libavcodec/proresdec.c
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@ -165,6 +165,10 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
ctx->picture.top_field_first = ctx->frame_type & 1;
}
avctx->color_primaries = buf[14];
avctx->color_trc = buf[15];
avctx->colorspace = buf[16];
ctx->alpha_info = buf[17] & 0xf;
if (ctx->alpha_info)
av_log_missing_feature(avctx, "alpha channel", 0);

6
libavcodec/proresenc.c
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@ -689,9 +689,9 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
bytestream_put_be16 (&buf, avctx->height);
bytestream_put_byte (&buf, ctx->chroma_factor << 6); // frame flags
bytestream_put_byte (&buf, 0); // reserved
bytestream_put_byte (&buf, 0); // primaries
bytestream_put_byte (&buf, 0); // transfer function
bytestream_put_byte (&buf, 6); // colour matrix - ITU-R BT.601-4
bytestream_put_byte (&buf, avctx->color_primaries);
bytestream_put_byte (&buf, avctx->color_trc);
bytestream_put_byte (&buf, avctx->colorspace);
bytestream_put_byte (&buf, 0x40); // source format and alpha information
bytestream_put_byte (&buf, 0); // reserved
bytestream_put_byte (&buf, 0x03); // matrix flags - both matrices are present

2
tests/ref/vsynth1/prores
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@ -1,4 +1,4 @@
c050b1a4905175211ead9979562366ff *./tests/data/vsynth1/prores.mov
2566517b15c62887bd94daaab1b1a85b *./tests/data/vsynth1/prores.mov
3859037 ./tests/data/vsynth1/prores.mov
0a4153637d0cc0a88a8bcbf04cfaf8c6 *./tests/data/prores.vsynth1.out.yuv
stddev: 3.17 PSNR: 38.09 MAXDIFF: 39 bytes: 7603200/ 7603200

2
tests/ref/vsynth2/prores
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@ -1,4 +1,4 @@
ecd11fa69712902143c0c54b193c9313 *./tests/data/vsynth2/prores.mov
28755ce05e812adbb8b7c180318ffba8 *./tests/data/vsynth2/prores.mov
3884722 ./tests/data/vsynth2/prores.mov
ca2f6c1162635dedfa468c90f1fdc0ef *./tests/data/prores.vsynth2.out.yuv
stddev: 0.92 PSNR: 48.77 MAXDIFF: 10 bytes: 7603200/ 7603200