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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-24 23:46:15 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-01-15 14:30:40 +0300 |
| commit | 0a6324fe9315e2a7dc5a5fe377f54ff17056f74c (patch) | |
| tree | 2dd51ee24c09ecb5509412893c2a66a92dd7000f /libswscale/utils.c | |
| parent | 2f65366c112d27c8c6078a3288c58cb202c65bd3 (diff) | |
swscale/utils: Fix intermediate format for cascaded alpha downscaling
Fixes Ticket4926
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b83d8be6bff7d645469a623aee0b380541da15cf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libswscale/utils.c')
| -rw-r--r-- | libswscale/utils.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index 2a88dc96f7..5610701136 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -1786,6 +1786,9 @@ fail: // FIXME replace things by appropriate error codes int tmpH = sqrt(srcH * (int64_t)dstH); enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P; + if (isALPHA(srcFormat)) + tmpFormat = AV_PIX_FMT_YUVA420P; + if (srcW*(int64_t)srcH <= 4LL*dstW*dstH) return AVERROR(EINVAL); |