[alsa-devel] [PATCH] surround41/50.conf: Use chmap syntax for better flexibility

Takashi Iwai tiwai at suse.de
Thu Jun 25 10:35:34 CEST 2015


At Thu, 25 Jun 2015 10:19:23 +0200,
David Henningsson wrote:
> 
> This alsa-lib patch seems to have been forgotten? Or at least not pushed 
> out.

Oops, pushed out now.


Takashi

> On 2015-06-18 10:47, David Henningsson wrote:
> > In case the hardware only supports a specific channel map,
> > this change would allow surround41/50 to select the correct
> > channel map and channel count in this situation.
> >
> > Signed-off-by: David Henningsson <david.henningsson at canonical.com>
> > ---
> >   src/conf/pcm/surround41.conf | 11 +++++------
> >   src/conf/pcm/surround50.conf | 11 +++++------
> >   2 files changed, 10 insertions(+), 12 deletions(-)
> >
> > diff --git a/src/conf/pcm/surround41.conf b/src/conf/pcm/surround41.conf
> > index 10e486e..2f82381 100644
> > --- a/src/conf/pcm/surround41.conf
> > +++ b/src/conf/pcm/surround41.conf
> > @@ -53,12 +53,11 @@ pcm.!surround41 {
> >   			]
> >   		}
> >   	}
> > -	slave.channels 6
> > -	ttable.0.0 1
> > -	ttable.1.1 1
> > -	ttable.2.2 1
> > -	ttable.3.3 1
> > -	ttable.4.5 1
> > +	ttable.0.FL 1
> > +	ttable.1.FR 1
> > +	ttable.2.RL 1
> > +	ttable.3.RR 1
> > +	ttable.4.LFE 1
> >   	hint {
> >   		description "4.1 Surround output to Front, Rear and Subwoofer speakers"
> >   		device $DEV
> > diff --git a/src/conf/pcm/surround50.conf b/src/conf/pcm/surround50.conf
> > index 7b7b17e..dc95c17 100644
> > --- a/src/conf/pcm/surround50.conf
> > +++ b/src/conf/pcm/surround50.conf
> > @@ -53,12 +53,11 @@ pcm.!surround50 {
> >   			]
> >   		}
> >   	}
> > -	slave.channels 6
> > -	ttable.0.0 1
> > -	ttable.1.1 1
> > -	ttable.2.2 1
> > -	ttable.3.3 1
> > -	ttable.4.4 1
> > +	ttable.0.FL 1
> > +	ttable.1.FR 1
> > +	ttable.2.RL 1
> > +	ttable.3.RR 1
> > +	ttable.4.FC 1
> >   	hint {
> >   		description "5.0 Surround output to Front, Center and Rear speakers"
> >   		device $DEV
> >
> 
> -- 
> David Henningsson, Canonical Ltd.
> https://launchpad.net/~diwic
> 


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