xmms blocks sound device
thedogfarted at inbox.lv
Fri Feb 27 20:39:14 UTC 2004
Wade Chandler wrote:
> thedogfarted wrote:
>> i noticed one more interesting thing - i can listen to xmms and
>> cdplayer in the same time... cdplayer continues to play even after the
>> system is halted
>> thedogfarted wrote:
>>> I installed Fedora Core 1 today and got bad surprise - et failed to
>>> start because xmms was blocking the soundcard. My previous os was
>>> freeBSD 5.2 and then i was able to play et and listen to xmms
>>> pls give me some advice...
> What sound server are you using?
where can i see it? xmms is using oss plugin, configured with /dev/dsp
audio device and /dev/mixer mixer device
> Artsd is one example of a sound
> server. This is an area where the linux community has to come together.
> The standard sound system works the way you are describing.
> You can use ALSA or Arts for your sound. If you are are using Artsd you
> can change the output of XMMS to use the artsd plugin. Artsd will allow
> multiple sound outputs. artsdsp will start my app and redirect my sound
> system calls to artsd. If you don't have this plugin by default you can
> download it from the xmms home page.
I'll look for the plugin. I think have alsa but i need more free time to
look at the docs.
> Sometimes, but not as often as I believe it should work, you can use
> artsdsp for you sound. artsdsp will run your application for you
> redirecting sound system calls to arts. Lets say I have an app call
> playmysounds. I would do this:
> artsdsp playmysounds
> artsdsp will find my app on the path and run it as a child process
> redirecting sound lib calls.
> What we need is a multi process kernel level sound system for /dev/dsp.
> This means we need another layer of abstraction between the sound
> driver and the device files I believe. Currently it does not spool in
> the manner the sound servers do. I like to write java applications as
> well as C apps, but my java apps have to use the standard sound services
> for sound output. Thus, my apps block the sound device, or they don't
> output sound because of another application hogging the device.
hmmm... my only java app that uses sound works ok
> You best bet with XMMS is to use something like artsd and then to set
> XMMS to use the artsd plugin for sound output. KDE makes using Artsd
> very easy from the control panel.
I'm using GNOME :)
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