[theora] Broken Theora integration in FFMPEG

Lino Mastrodomenico l.mastrodomenico at gmail.com
Tue May 19 14:48:05 PDT 2009

2009/5/19 Jason Self <jason.self at gmail.com>:
> Interesting; I was not aware of this of this. ffmpeg2theora appears to
> have problems decoding the 5.1 audio that I get with my local HD
> programming (mentioned on this list in March.) ffmpeg proper is fine
> so I'm not sure what ffmpeg2theora is doing differently. I'd given up
> on ffmpeg2theora as a result, but there appear to be issues either way
> you go? (Choose between broken Ogg mux support or broken 5.1 audio
> decoding?)

As a workaround you may want to use MPlayer to decode the audio, with
something like this (untested!):

    mencoder input.avi -ovc copy -oac pcm -o output.avi

and then convert output.avi to Ogg with ffmpeg2theora.

Lino Mastrodomenico

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