On 17-03-08 03:57, Alexander Indenbaum wrote:
> I'm playing with embedded system without any hardware sound device. I'd like
> to grab sound from ALSA application, for instance Firefox displaying YouTube
> clip inside flash plugin and to store output PCM stream into file on local
> disk. I got an advice to use File extension. So I defined following
> /usr/share/alsa/alsa.conf
Don't do it there. Use /etc/asound.conf or $HOME/.asoundrc ...
> pcm.default{
> type
> file
> file
> /tmp/pcm.out
> }
... and make it
pcm.!default {
type file
slave {
pcm null
}
file "/tmp/pcm.out"
}
Exactly why you need that slave definition I'm not sure either, but it seems
you do. Also note that /tmp/pcm.out will be headerless PCM and is recreated
for individual opens. I don't believe there's an append mode or anything
(and you'd need to make sure that everyone plays the same format) so not
toot sure if this is what you need to have a catch all audio-sink...
Rene.
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