[MPlayer-dev-eng] [PATCH] select the number of channels to save with -ao pcm

Guillaume POIRIER poirierg at gmail.com
Tue Oct 11 16:13:24 CEST 2005


Hi,

On 10/7/05, Giacomo Comes <comes at naic.edu> wrote:
> I was looking for a solution to extract a particular channel from a
> multichannel audio stream (tipically ac3).
>
> I found a way to listen to a specific channel with:
>
> mplayer dvd://1 -channels 6 -af channels=1:1:4:0 (center channel)
>
> but when I tryed to save the channel adding -ao pcm, all the six channels
> where saved.
>
> I created therefore a patch that allow to specify the number of channels
> you want to save with -ao pcm.
>
> Example:
>
> mplayer dvd://1 -channels 6 -af channels=1:1:4:0 -ao pcm:channels=1
> (save only the center channels)
>
> mplayer dvd://1 -channels 6 -af channels=2:2:2:0:3:1 -ao pcm:channels=2
> (save only the surround channels)
>
> If the patch will be applied I will also include a man page update.
>
> Comments?

Wouldn't it be much better if your patch could fix the "misbehaviour"
of MPlayer when considering that precise problem? ... or would it
require a dirty hack?

Guillaume
--
Reading doesn't hurt, really!
  -- Dominik 'Rathann' Mierzejewski




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