[Ffmpeg-devel] [BUG] Assertion in h264 decoder (missing reference frames?)

[Howard Berkey]

Jindrich Makovicka wrote:
> Hi,
> 
> the following sample (~512k) triggers a failed assertion in h264.c:
> 
> h264.c:2610: mc_dir_part: Assertion `pic->data[0]' failed.
> 
> It has been produced by x264 rev 394.
> 
> http://kmlinux.fjfi.cvut.cz/~makovick/goro.avi
> 

Funny timing.  I just subscribed to the list and I happen to
be working around this bug as well.  As others in the thread mentioned,
it appears to be caused by missing reference frames.

It is really easy to reproduce; modifying the apiexample
code in libavcodec to use H264 and drop occasional frames will 
cause it to happen pretty much immediately.

Howard