FFmpeg/libavcodec
Andreas Rheinhardt 042c1966da avcodec/pngdec: Don't use unsigned for width, height
Otherwise p->linesize[0] * y will be evaluated as an unsigned
which leads to segfaults in case linesize is negative.
This happens in the apng-dispose-previous FATE-test in case
one makes get_buffer return pictures with negative linesizes.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-10-04 18:01:03 +02:00
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