[mythtv-users] 0.24 upgrade, audio buffer underruns

James Orr james.orr7 at gmail.com
Mon Jan 23 17:36:31 UTC 2012


I just upgraded from 0.23 fixes to 0.24.1.  If I have my audio set to 5.1 I
get buffer underruns, setting it to stereo the audio is ok.

This was not happening in 0.23.

Here's the output from the frontend log, any ideas?

2012-01-23 12:25:34.921 AFD: Opened codec 0x90fc720, id(MPEG2VIDEO)
type(Video)
2012-01-23 12:25:34.921 AFD: codec AC3 has 6 channels
2012-01-23 12:25:34.922 AFD: Opened codec 0x9103520, id(AC3) type(Audio)
2012-01-23 12:25:35.039 AO: Opening audio device 'iec958:CARD=SI7012,DEV=0'
ch 6(6) sr 48000 sf signed 16 bit reenc 1
2012-01-23 12:25:35.047 ALSA, Error: Unable to sufficiently increase ALSA
hardware buffer size - underruns are likely
2012-01-23 12:25:35.051 AudioPlayer: Enabling Audio
2012-01-23 12:25:35.203 VDPAU: Created 2 output surfaces.
2012-01-23 12:25:35.204 VDPAU: Created VDPAU render device 1920x1080
2012-01-23 12:25:35.335 Player(1): Forcing decode extra audio option on
(Video method requires it).
2012-01-23 12:25:35.376 OSD: Base theme size: 1280x720
2012-01-23 12:25:35.377 OSD: Scaling factors: 1.5x1.5
2012-01-23 12:25:35.540 OSD: Base theme size: 1280x720
2012-01-23 12:25:35.540 OSD: Scaling factors: 1.5x1.5
2012-01-23 12:25:35.544 Player(1): Video timing method: USleep with busy
wait
2012-01-23 12:25:35.550 TV: Changing from None to WatchingPreRecorded
2012-01-23 12:25:35.580 ALSA, Error: WriteAudio: buffer underrun
2012-01-23 12:25:35.613 ScreenSaverX11Private: DPMS Deactivated 1
2012-01-23 12:25:35.615 VDPAU: Added 2 output surfaces (total 4, max 4)
2012-01-23 12:25:35.769 ALSA, Error: WriteAudio: buffer underrun
2012-01-23 12:25:35.883 ALSA, Error: WriteAudio: buffer underrun
2012-01-23 12:25:35.997 ALSA, Error: WriteAudio: buffer underrun
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