At Thu, 11 Jan 2007 15:54:55 +0100,
Ingo Müller wrote:
>
> Hi!
>
> I have some ideas about features that could be added to the softvol
> plugin, that I want to discuss with you.
>
> 1) A mute/unmute function. I think this is the most easy job.
Likely.
> 2) Ability to replace an existing control. I have no idea whether it is
> possible to realize this, but this would be very usefull (see below).
Well, my idea is to overwrap the existing mixer elements with the new
user-space elements instead of replacing the kernel space entries.
This would be a plugin for ctl interface.
> 3) Multi channel capabilities. This is just a vague idea. The aim is to
> be able to control e.g. front, rear and center/lfe channels seperately
> from each other. Maybe like this:
>
> pcm.softvol {
> type softvol
> slave {
> pcm "hw:0,1"
> }
> controls [
> {
> name "SoftFront"
> affects [ 0 1 ]
> }
> {
> name "SoftRear"
> affects [ 2 3 ]
> }
> {
> name "SoftCenterLfe"
> affects [ 4 5 ]
> }
> ]
> }
Hm, this wouldn't be too hard, too...
Takashi
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