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avcodec/ffv1dec: Support gray 10/12/16 explicitly avoid shifts

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-11-17 23:21:37 +01:00
parent 50e0e96f3f
commit d7a3bb2088
1 changed files with 12 additions and 1 deletions
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13
libavcodec/ffv1dec.c
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@ -575,8 +575,19 @@ static int read_header(FFV1Context *f)
if (!f->transparency && !f->chroma_planes) {
if (f->avctx->bits_per_raw_sample <= 8)
f->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
else
else if (f->avctx->bits_per_raw_sample == 10) {
f->packed_at_lsb = 1;
f->avctx->pix_fmt = AV_PIX_FMT_GRAY10;
} else if (f->avctx->bits_per_raw_sample == 12) {
f->packed_at_lsb = 1;
f->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
} else if (f->avctx->bits_per_raw_sample == 16) {
f->packed_at_lsb = 1;
f->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
} else if (f->avctx->bits_per_raw_sample < 16) {
f->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
} else
return AVERROR(ENOSYS);
} else if (f->transparency && !f->chroma_planes) {
if (f->avctx->bits_per_raw_sample <= 8)
f->avctx->pix_fmt = AV_PIX_FMT_YA8;