[Clam-devel] Re: Fwd: ALSA hangs randomly since non-mmap patch and JACK support removed from Ubuntu

[Pau Arumí]

Hi Albert,

though CLAM's NetworkEditor supports PortAudio I personally always use
the native Jack backend, which is the one that works best no Linux.
PortAudio is often used in Windows and MacOSX.

I'm copying this to clam-devel in case some developer have also found
this bug annoying and wants to give feedback at ubuntu's bug tracker.

I see how this is an annoying problem for mixxx. If the situation
doesn't change maybe it is worth to take the CLAM approach of having a
abstract backend layer (we call it NetworkPlayer) that can be
implemented either using PortAudio or Jack directly or CoreAudio, etc. 
Of course this is not the ideal solution...

Cheers
P

El dt 17 de 11 de 2009 a les 01:42 +0100, en/na Albert Santoni va
escriure:
> Hey Pau,
> 
> Have you seen anything like these random ALSA hangs with CLAM?
> 
> Thanks,
> Albert
> 
> 
> ---------- Forwarded message ----------
> From: Albert Santoni <alberts at mixxx.org>
> Date: Mon, Nov 16, 2009 at 4:38 PM
> Subject: ALSA hangs randomly since non-mmap patch and JACK support
> removed from Ubuntu
> To: Portaudio Mailing List <portaudio at music.columbia.edu>
> 
> 
> Hello everyone,
> 
> It looks like since the non-mmap patch was added to PortAudio, Mixxx
> has had problems randomly hanging when either opening a sound device
> or in the middle of playback. There is a lengthy bug report about this
> here, and it took us a while to figure out:
> https://bugs.launchpad.net/ubuntu/+source/portaudio/+bug/383431
> 
> Has anyone else experienced this problem?
> 
> I should mention that the packaged versions of PortAudio in both
> Ubuntu and Fedora include this patch, though I haven't seen people
> complaining about this.
> 
> I also wanted to mention that Mixxx has been crippled in recent
> versions of Ubuntu because the package maintainers removed JACK
> support from PortAudio. This has been driving our users insane and I
> don't feel that the issue has received the attention it deserves from
> the Ubuntu people. If anyone else's project is affected by this bug,
> please mention it in this bug thread and help us attract some more
> attention: https://bugs.launchpad.net/ubuntu/+source/portaudio/+bug/360590
> 
> Thanks,
> Albert