[MPlayer-users] down-mix to stereo

[Clément Bœsch]

On Thu, Sep 23, 2010 at 11:33:51AM +0000, Zongyao QU wrote:
> I am developing an program 
> which serves as a front-end of mplayer, in Mac OSX.
> 
> http://code.google.com/p/mplayerx/
> 
> I found, mplayer will not down-mix the multi-channels, 
> such as AC3, DTS, FLAC, COOK to stereo, AUTOMATICALLY.
> 
> So I decide to do it in my app.
> 
> I have read some docs and found each of decoders has
> different definition of channel map.
> 
> My question is that
> does mplayer re-map the channels to its own channel
> definition? 
> such as [FL, FR, SL, SR, CF, LFE]
> (this could be found at 
> http://www.mplayerhq.hu/DOCS/HTML/en/advaudio-channels.html)
> 
> so that I could use one set of parameters for the PAN filter.
> 
> is there any docs explaining the details?
> 

There is a pending patch I'm actually developing. I need to do
finish it but there is pre-working version you can find it:
http://lists-archives.org/mplayer-dev-eng/32379-automatic-downmix.html

You can follow the thread if you want to know why it's still pending.

Regards,

-- 
Clément B.