[FFmpeg-devel] [PATCH] mpeg4videodec: silence "Invalid and inefficient vfw-avi packed B frames detected" warning

Nicolas George nicolas.george at normalesup.org
Thu Aug 29 21:58:27 CEST 2013

Le duodi 12 fructidor, an CCXXI, Reimar Döffinger a écrit :
> One of the reasons for the warning is to make people stop using the
> tools that create these broken files.
> Ideally also to fix them.
> However I think it is badly worded for that purpose.
> In the link I gave I suggested at least pointing to tools
> to fix it.
> What would be a reasonable way?
> 'Video uses a non-standard and wasteful way to store B-frames ("packed
> B-frames"). Consider using a tool like VirtualDub or avidemux to fix
> it.'

It seems very reasonable to me. Another reasonable option would be to have a
FAQ entry with the links to the tools to fix it, and the warning sending to
the FAQ.

I wish I had known the exact issue and how to fix it when I tried to play
this kind of files on an old netbook.


  Nicolas George
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