[FFmpeg-devel] Bug decoding multiple png images

[Uoti Urpala]

I noticed a crash when using mf:// in MPlayer with png images. The
reason seems to be that when the images have different properties FFmpeg
does not update image buffer properties such as linesize which leads to
a buffer overflow. I assume decoding multiple different images should
work. Decoding a small png, then a big one might be enough to reproduce
a crash.