21 Jun
2005
21 Jun
'05
12:27 p.m.
On Mon, 2005-06-20 at 18:47 +0200, Takashi Iwai wrote:
The set-up is, however, not only the choice of the
soundcard, but it
includes eventually the choice and set-up of devices. For example,
the default I/O should support 5.1 output or SPDIF if user wants (I'm
wondering why no one mentions about them.)
I think because the apps that want to use these (99% xine and mplayer)
already seem to do the right thing.
Then (2), it's more about with JACK: I think the
scenario above would
work indeed. We don't have a plugin to do such a job yet, but it
should be easy to create. Suppose a new plugin which have a
configuration like below:
pcm.!default {
type sequential
pcms [ "dmix" "jack" ... ]
}
so that it will try to open dmix, jack, etc sequentially until it
succeeds. Then non-JACK apps can work seamlessly, too, without
changing configuration.
This is a great idea, we should discuss it further on alsa-devel.
In fact JACK works perfectly fine with or without dmix, it just
complains loudly if you try to use it with the plug layer. We should
preserve this behavior: JACK will first try to get exclusive access,
then if only dmix is available, it should display a warning and
continue.
Lee