[Ffmpeg-devel] [PATCH] audio channel extraction

[Michael Niedermayer]

Hi

On Fri, Sep 15, 2006 at 02:21:13PM +0200, Baptiste Coudurier wrote:
> Michael Niedermayer wrote:
> > Hi
> > 
> > On Fri, Sep 15, 2006 at 12:47:20PM +0200, Baptiste Coudurier wrote:
> >> Hi
> >>
> >> This patch adds feature to extract specific channels from audio track.
> >> My main goal was to split 4 channels tracks to 2 stereos tracks.
> > 
> > what about a more generic system which could mix chanels together into
> > other channels? so that there would be a AxB matrix of coefficients to
> > mix A input channels into B output channels?
> > 
> > 
> > [...]
> 
> That would be a nice idea indeed, and would that be usefull for ac3/aac
> downmixing also ? 

i think so


> I might lack theory and good design skills to do that
> though :/
> Could you point me papers, or design ideas ?

just leave the coefficients to the user as command line parameters

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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