[Ffmpeg-devel] Problems building libav* with a subset of codecs and formats

Diego Biurrun diego
Sat Oct 15 12:08:24 CEST 2005


On Sat, Oct 15, 2005 at 02:01:13PM +0800, Colin Ward wrote:
> 
>   So I stripped my libraries down to just support a subset of FFMPEG's
> supported formats and codecs.  Basically MPEG 1/2 video, AVI video, MP2,
> MP3, Ogg Vorbis and Ogg Theora (both internal versions).  Ok great, now my
> executable is only 1.8 MB, much better.
> 
>   However, now I have trouble playing some files that played just fine
> before.  For instance, any AVI files that I have that contain DIVX encoded
> video will not work.  They just output a lot of information about headers
> not being complete.  Interestingly enough, this output comes from h263.c. 
> I am not familiar with the internals of FFMPEG but my guess is that the
> wrong codec is decoding this data.  After all, aren't there a few different
> MPEG4 based codecs out there?  ie.  The MSMPEG4v1, MSMPEG4v2 etc. codecs,
> the "real" MPEG4 codec, DIVX etc.

Haven't you left out MPEG-4?  Why are you wondering that you cannot play
it anymore?

Diego





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