[mythtv-commits] Ticket #5396: Audio stuttering when video is paused

MythTV mythtv at cvs.mythtv.org
Mon May 26 06:32:42 UTC 2008


#5396: Audio stuttering when video is paused
--------------------------------+-------------------------------------------
 Reporter:  mythdev at tiscali.nl  |       Owner:  ijr    
     Type:  defect              |      Status:  new    
 Priority:  minor               |   Milestone:  unknown
Component:  mythtv              |     Version:  unknown
 Severity:  medium              |     Mlocked:  0      
--------------------------------+-------------------------------------------
 When I pause my video, the audio starts stuttering. So a very annoying
 sound is made. When I resume the video everything is normal again until I
 pause the video.

 Also when skipping the sound can be heard a very limited time. It is a
 repeating "tick".

 It worked until about 2 weeks ago. I always follow SVN as close as
 possible, but I do not yet know what commit broke this for me.

 I use an epia as frontend, that may be relevant (or not).

 The frontend log shows the following:

 [...]
 2008-05-26 08:31:25.252 TV: Attempting to change from None to
 WatchingPreRecorded
 2008-05-26 08:31:25.423 DPMS Deactivated
 2008-05-26 08:31:26.761 AFD: Opened codec 0x83b1d80,
 id(MPEG2VIDEO_XVMC_VLD) type(Video)
 2008-05-26 08:31:26.762 AFD: codec MP2 has 2 channels
 2008-05-26 08:31:26.762 AFD: Opened codec 0x923d250, id(MP2) type(Audio)
 2008-05-26 08:31:26.808 Opening audio device 'default'. ch 2(2) sr 48000
 2008-05-26 08:31:26.822 Opening ALSA audio device 'default'.
 2008-05-26 08:31:27.694 VideoOutputXv: XvMC Adaptor Name: 'XV_SWOV'
 Unable to create XvMC Surface.
 2008-05-26 08:31:27.738 OSD Theme Dimensions W: 640 H: 480
 2008-05-26 08:31:37.652 TV: Changing from None to WatchingPreRecorded
 [...]
 2008-05-26 08:27:43.944 WriteAudio: buffer underrun
 2008-05-26 08:27:43.984 WriteAudio: buffer underrun
 2008-05-26 08:27:44.024 WriteAudio: buffer underrun
 2008-05-26 08:27:44.064 WriteAudio: buffer underrun
 2008-05-26 08:27:44.104 WriteAudio: buffer underrun
 2008-05-26 08:27:44.154 WriteAudio: buffer underrun
 2008-05-26 08:27:44.194 WriteAudio: buffer underrun
 2008-05-26 08:27:44.244 WriteAudio: buffer underrun
 [...]

 Please include all output in bug reports.
 MythTV Version   : 17392
 MythTV Branch    : trunk
 Library API      : 0.22.20080512-2
 Network Protocol : 40
 QT Version       : 4.3.4
 Options compiled in:
  linux release using_alsa using_backend using_frontend using_lirc
 using_v4l using_x11 using_xv using_xvmc using_xvmc_vld using_bindings_perl
 using_bindings_python using_opengl using_ffmpeg_threads

 00:00.0 Host bridge: VIA Technologies, Inc. VT8623 [Apollo CLE266]
 00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
 00:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host
 Controller (rev 80)
 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
 Controller (rev 80)
 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
 Controller (rev 80)
 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
 Controller (rev 80)
 00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
 00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
 00:11.1 IDE interface: VIA Technologies, Inc.
 VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
 00:11.5 Multimedia audio controller: VIA Technologies, Inc.
 VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev
 74)
 01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8623 [Apollo
 CLE266] integrated CastleRock graphics (rev 03)

 Sound Modules:

 snd_via82xx            18676  0
 snd_ac97_codec         84224  1 snd_via82xx
 ac97_bus                1344  1 snd_ac97_codec
 snd_pcm                52488  2 snd_via82xx,snd_ac97_codec
 snd_page_alloc          6824  2 snd_via82xx,snd_pcm
 snd_mpu401_uart         5376  1 snd_via82xx
 snd_rawmidi            14496  1 snd_mpu401_uart

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/5396>
MythTV <http://www.mythtv.org/>
MythTV


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