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swscale: Fix PAL8 input with alpha

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Fixes Ticket2158

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-06-26 15:07:13 +02:00
parent ee97982408
commit 034b31df2c
1 changed files with 2 additions and 0 deletions
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2
libswscale/swscale_internal.h
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@ -742,6 +742,8 @@ static av_always_inline int isALPHA(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
av_assert0(desc);
if (pix_fmt == AV_PIX_FMT_PAL8)
return 1;
return desc->flags & AV_PIX_FMT_FLAG_ALPHA;
}