| View previous topic :: View next topic |
| Author |
Message |
Daytona
n00b
Joined: 01 Aug 2005
Posts: 55
Location: EN51vt
|
 Posted: Mon Mar 18, 2013 5:16 pm Post subject: OSS program can get only input or output at one time[SOLVED] |
 |
|
Hi ALSA experts,
I've got a program (fldigi) which uses OSS. (well, or portaudio or pulseaudio, neither of which I'm interested is using)
I've used it for a long time capturing audio with no problems.
Now I want to output audio as well. Problem is, there is no output. When it tries, I get a whole bunch of "Sound error: Device or resource busy" from the program.
I found media-libs/alsa-oss, emerged that and ran
and got output. Problem is, now there is no input to the program. I ran fldigi by itself again, and sure enough I have input but no output. There are no errors reported from fldigi when running with the aoss wrapper.
I see nothing in the mixer, and the rest of the system works fine. (I'm pretty sure this is the only OSS program left) I'm running ALSA from the kernel, with everything configured as modules, including the OSS compatibility modules, which are loaded in /etc/conf.d/modules. Is there something I need to tweak in the mysterious alsa.conf perhaps?
Last edited by Daytona on Tue Mar 19, 2013 1:06 pm; edited 1 time in total |
|
| Back to top |
|
 |
Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6920
|
| Posted: Mon Mar 18, 2013 11:49 pm Post subject: |
|
|
| The OSS emulation layer only supports one stream by design. You may be more interested in using Pulseaudio than having a broken application. |
|
| Back to top |
|
|
Daytona
n00b
Joined: 01 Aug 2005
Posts: 55
Location: EN51vt
|
| Posted: Tue Mar 19, 2013 1:05 pm Post subject: |
|
|
That would definitely explain it! Sucks for me, but an understandable choice considering the other ~99% of use-cases.
Guess it's time to evaluate my options.
Thanks for the response! |
|
| Back to top |
|
|
Gusar
Advocate
Joined: 09 Apr 2005
Posts: 2665
Location: Slovenia
|
| Posted: Tue Mar 19, 2013 2:38 pm Post subject: |
|
|
If aoss doesn't do the trick, compile your kernel with CUSE support and use ossp. It's not in portage, but there's a bug report with ebuilds: https://bugs.gentoo.org/show_bug.cgi?id=288059
Or use portaudio. It's a library, not a sound server like pulseaudio, so it won't make a mess on your system. That's probably the best option. |
|
| Back to top |
|
|
Daytona
n00b
Joined: 01 Aug 2005
Posts: 55
Location: EN51vt
|
| Posted: Thu Mar 21, 2013 2:49 am Post subject: |
|
|
Wish I had seen your post before reconfiguring my whole system! That ossp looks like it might have done the trick. I went with Pulseaudio, though, because particularly for this application I see potential advantages to having network-able sound. I'll have to live with it for a while to decide if I really like it or not, it's definitely a change from plain ALSA.
If I decide it's not worth it, then either portaudio or ossp will be the way to go. I even considered OSSv4, but between the development model (is it commercial, isn't it, why would anyone bother with a commercial venture for OSS?), and | Quote: | Currently unimplemented or incomplete features
power management features like support for suspend/resume
jacksense may not work (especially the hdaudio cards found on many laptops have such problems) |
that idea quickly ended. On this machine, my laptop that goes everywhere with me, I don't have time for such issues. |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Multimedia
