[FFmpeg-user] Configure the LAME Encoder

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Dec 14 11:13:14 CET 2011

Alex VD <alexvd <at> hotmail.fr> writes:

> > >> I'm trying to encode in mp3 format with the LAME encoder in FFmpeg,
> > >> but I would like to configure the stereo mode (Stereo, Joint Stereo,
> > >> etc.).
> > >
> > > FFmpeg currently only supports Joint Stereo and Mono when encoding with
> > > lame. (What else do you need?)

> Carl, in fact I would like to encode in Stereo, not in Joint Stereo.

I believe it is not very difficult to (also) support Stereo, but a reason for
such a patch would be nice;-)
(From a quick look, it seems all lame experts strongly suggest not to use
Stereo, but the default Joint Stereo.)

> You said only Joint Stereo and Mono are supported, but how the
> choice between this two modes is done? Is it automatically with
> the number of channels detected?


> (So what happens if we encode 6 channels (5.1) in mp3?)

lame only supports mono and stereo.

Carl Eugen

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