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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-01-08 22:48:58 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-01-11 21:27:21 +0100 |
| commit | ba6e36f906c9ff8a4debd44288792579495bafc3 (patch) | |
| tree | a8d04fea459dd5e7a6c94bb9d3bada32208b5144 | |
| parent | 84d0fcf268da880211b8e3f72764e2a47e07955b (diff) | |
| download | ffmpeg-ba6e36f906c9ff8a4debd44288792579495bafc3.tar.gz | |
swscale: Force full horizontal chroma internally when the output has a odd size.
This fixes a gray line on the right side due to 1 column of pixels being skiped.
Fixes Ticket891
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libswscale/utils.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index 1bbe58e58b..13eb07512e 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -850,7 +850,14 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat); // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation - if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1; + if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) { + if (dstW&1) { + av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n"); + flags |= SWS_FULL_CHR_H_INT; + c->flags = flags; + } else + c->chrDstHSubSample = 1; + } // drop some chroma lines if the user wants it c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT; |