[alsa-devel] [PATCH] Per Application Volume Control plugin for ALSA

Colin Guthrie gmane at colin.guthr.ie
Sun Oct 17 13:21:21 CEST 2010

'Twas brillig, and Takashi Iwai at 17/10/10 09:55 did gyre and gimble:
> At Wed, 29 Sep 2010 18:56:59 +0200,
> James Huk wrote:
>> Hello everybody.
>> This is my first "post" here, so please be "gentle".
>> I have created PAVC plugin for ALSA, it is based on COPY plugin, and
>> use SOFTVOL plugin for sound output. As far as I can tell from current
>> tests - It works perfectly, and it doesn't break compatibility with
>> any apps I use (and PulseAudio does). So I was wondering - is there
>> any chance this plugin would be added to the next official ALSA
>> release?
>> Here is the patch that enables it on current alsa-lib-1.0.23
>> (hopefully this mailing list is a good place to "post" this):
> Thanks for the patch.  I looked over this post until now.
> The idea is interesting, and I thought of a similar thing before PA
> gets popularized, too.
> Though, this implementation is a bit too hackish, especially the part
> using pipe & co.  If we have a more simpler and cleaner way for this,
> it's worth including to the standard plugin, I think.

I was thinking much the same thing when I read over this patch a few
weeks ago.

While it could be interesting to include this in alsa, I struggled to
think of a use case where PA would not be more appropriate.

Is there a specific use case targeted with this patch or is it really
just a "proof of concept" demonstration that alsa can do this sans PA?



Colin Guthrie

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