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libpostproc: check minimum size

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 917c15435a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2025-05-01 21:20:31 +02:00
parent 47d7bd31a9
commit d553897a10
1 changed files with 5 additions and 0 deletions
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5
libpostproc/postprocess.c
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@@ -950,6 +950,11 @@ void pp_postprocess(const uint8_t * src[3], const int srcStride[3],
int minStride= FFMAX(FFABS(srcStride[0]), FFABS(dstStride[0]));
int absQPStride = FFABS(QPStride);
if (width < 16 || height < 16) {
av_log(c, AV_LOG_ERROR, "Postproc is designed to filter 16x16 macroblock based formats, the minimum size is 1 macroblock\n");
return;
}
// c->stride and c->QPStride are always positive
if(c->stride < minStride || c->qpStride < absQPStride)
reallocBuffers(c, width, height,