[Ffmpeg-devel] PATCH: make libavformat find codecid for AACstreams in matroska container.
Fri Jan 27 23:25:55 CET 2006
> -----Original Message-----
> From: Steve Lhomme [mailto:slhomme at divxcorp.com]
> Sent: den 27 januari 2006 20:16
> To: FFMpeg development discussions and patches
> Subject: Re: [Ffmpeg-devel] PATCH: make libavformat find
> codecid for AACstreams in matroska container.
> elupus wrote:
> > Hi,
> > Here is a small patch to allow libavformat to find the
> codec on AAC streams
> > in matroska containers.
> > The defines for the AAC codec's are set like this,
> > #define MATROSKA_CODEC_ID_AUDIO_MPEG2 "A_AAC/MPEG2/"
> > #define MATROSKA_CODEC_ID_AUDIO_MPEG4 "A_AAC/MPEG4/"
> > which isn't the full name for the codec's. I.e. it normally
> has some more
> > extension to it like MAIN, LC...
> > Anyway, this patch fixes so that when the codec_id is
> compared to these
> > defines, only the given length is compared (which I think
> was the original
> > idea). I suppose some more information could be gotten from
> that extra
> > information, but I think this should be enough.
> > Cheers
> > /Joakim
> I provided a patch that handles this and the codec private
> and also the
> new and simple A_AAC (everything is said in the codec
> private). But the
> patch was rejected (although factorizing that code means having FAAD
> support which is GPL).
> You can find the code in the source releases of DrFFMPEG on
Took the liberty of finding this patch.. Stripped some of the compiler
warning / int64 fixes away and I've not tried to compile it right now. Just
a RFC for now.
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