[mythtv-users] pulseaudio issues with 0.24

[Brian J. Murrell]

I have 0.24 configured on my desktop machine (which uses pulseaudio) so
I selected "PulseAudio:default" as my Audio output device.  Typically
when I start mythfrontend in this configuration and play back a
recording, it cranks the pulseaudio master volume up to max, which it
should not be doing of course.  mplayer had this problem when it first
started using pulseaudio in Ubuntu:
(https://bugs.launchpad.net/ubuntu/karmic/+source/mplayer/+bug/482408). 

The changelog for the fixed release of mplayer said:

mplayer (2:1.0~rc3+svn20090426-1ubuntu11) lucid; urgency=low

  * Add 50_fix_initial_volume_setting_pulse_output.patch to resolve the
    stream volume being set to max upon each mplayer invocation
    (LP: #482408)

Maybe that patch will be helpful in discovering what mistake mythtv has
made.

Also, some number of times starting a recording playback I get "white
noise" rather than the audio track.

On yet on another occasion I got this: 

2010-11-14 09:38:10.879 TV: Attempting to change from None to WatchingPreRecorded
2010-11-14 09:38:10.956 AudioPlayer: Disabling Audio, params(0,2,44100)
2010-11-14 09:38:10.968 AudioOutput Error: Aborting Audio Reconfigure. Invalid audio parameters ch 2 fmt 0 @ 44100Hz
2010-11-14 09:38:10.968 AudioPlayer: Disabling Audio, reason is: Aborting Audio Reconfigure. Invalid audio parameters ch 2 fmt 0 @ 44100Hz
2010-11-14 09:38:10.968 playCtx, Error: Aborting Audio Reconfigure. Invalid audio parameters ch 2 fmt 0 @ 44100Hz
2010-11-14 09:38:11.170 AFD: Opened codec 0xac982ae0, id(MPEG2VIDEO) type(Video)
2010-11-14 09:38:11.170 AFD: codec AC3 has 2 channels
2010-11-14 09:38:11.170 AFD: Opened codec 0xae1ba6d0, id(AC3) type(Audio)
2010-11-14 09:38:11.170 AFD: codec AC3 has 2 channels
2010-11-14 09:38:11.171 AFD: Opened codec 0xac9c6b80, id(AC3) type(Audio)
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
2010-11-14 09:38:11.183 PulseAudio Error: ContextConnect, failed to acquire new context
2010-11-14 09:38:11.183 AO: Opening audio device 'PulseAudio:default' ch 2(2) sr 48000 sf signed 16 bit reenc 0
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
2010-11-14 09:38:11.185 PulseAudio Error: ContextConnect, failed to acquire new context
2010-11-14 09:38:11.185 AudioOutput Error: Aborting reconfigure
2010-11-14 09:38:11.185 AudioPlayer: Disabling Audio, reason is: Aborting reconfigure
2010-11-14 09:38:11.808 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Texture'
2010-11-14 09:38:11.864 OSD: Base theme size: 1920x1080
2010-11-14 09:38:11.864 OSD: Scaling factors: 0.360417x0.427778
2010-11-14 09:38:11.940 OSD: Base theme size: 1920x1080
2010-11-14 09:38:11.940 OSD: Scaling factors: 0.360417x0.427778
2010-11-14 09:38:11.941 OSD: Base theme size: 1920x1080
2010-11-14 09:38:11.941 OSD: Scaling factors: 0.360417x0.427778
2010-11-14 09:38:11.949 Player(2): Video timing method: USleep with busy wait
2010-11-14 09:38:12.058 TV: Changing from None to WatchingPreRecorded
2010-11-14 09:38:12.232 ScreenSaverX11Private: DPMS Deactivated 1
2010-11-14 09:38:12.259 VideoOutput: Created YV12 OSD.
2010-11-14 09:38:35.156 OSD: Base theme size: 1920x1080
2010-11-14 09:38:35.156 OSD: Scaling factors: 0.360417x0.32037
2010-11-14 09:38:35.244 OSD: Base theme size: 1920x1080
2010-11-14 09:38:35.244 OSD: Scaling factors: 0.360417x0.32037

and there was no audio.  At the same time, I was able to use other sound
applications (i.e. rhythmbox) with pulseaudio just fine.  The above
would continue to happen until I exit mythfrontend and restart it, after
which audio with pulseaudio worked again.

Cheers,
b.

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