scheutzo <mike.scheut...@alcatel-lucent.com> added the comment: I've been looking at the 2nd bitstream uploaded by belcampo named decodedsNOTok-another.mpg. It is much better for debugging than the first one.
I think that BBC-HD is using a number of H.264 capabilities not currently supported by the FFmpeg H.264 decoder. There are frame-dropping issues way before the blockies appear. This stream: - does not have IDR - uses multiple slices per picture - uses both frame and field pictures - header says MBAFF in use (haven't checked if true) - uses 3 B frames, where display order differs from transmission order - does not use long-term references I suspect the frame drops are related to the B frame bullet item. ________________________________________________ FFmpeg issue tracker <iss...@roundup.ffmpeg.org> <https://roundup.ffmpeg.org/issue2033> ________________________________________________
