[mythtv-users] Stuttering video and audio with MythDVD

Tue Jul 3 14:04:20 UTC 2007

I'm afraid I can't offer any help, but I can confirm it's happening for me
too. I just installed a DVD drive and I get the same issue unless I turn off
XvMC. At this point I've only just started investigating.

Does anyone know if there's a way to tell MythDVD to use "Standard" while
leaving XvMC on for normal television viewing?

My logs are slightly different in that during playback I don't just get
audio-buffer-underruns:

2007-07-03 23:28:21.959 WriteAudio: buffer underrun
2007-07-03 23:28:22.012 NVP: prebuffering pause
2007-07-03 23:28:22.132 NVP: prebuffering pause
2007-07-03 23:28:22.794 WriteAudio: buffer underrun
2007-07-03 23:28:23.012 NVP: prebuffering pause
2007-07-03 23:28:23.131 NVP: prebuffering pause
2007-07-03 23:28:23.555 WriteAudio: buffer underrun
2007-07-03 23:28:23.772 NVP: prebuffering pause
2007-07-03 23:28:23.890 NVP: prebuffering pause
2007-07-03 23:28:24.230 NVP: prebuffering pause
2007-07-03 23:28:24.319 WriteAudio: buffer underrun
2007-07-03 23:28:24.470 NVP: prebuffering pause
2007-07-03 23:28:24.496 WriteAudio: buffer underrun
2007-07-03 23:28:24.590 NVP: prebuffering pause
2007-07-03 23:28:24.749 NVP: prebuffering pause
2007-07-03 23:28:24.764 WriteAudio: buffer underrun
2007-07-03 23:28:24.909 NVP: prebuffering pause
2007-07-03 23:28:25.069 NVP: prebuffering pause
2007-07-03 23:28:25.516 WriteAudio: buffer underrun

Hope this is helpful to someone,
Ed.

> I've got a rather strange problem with MythDVD, but only if XvMC is
> > turned on.  The video stutters, the audio stutters, and MythDVD usually
> > closes when it hits the DVD main menu.
> >
>
> Anyone?  I've managed to pick the following bits out of some log files:
>
> > 2007-03-30 19:48:24.502 Registering Internal as a media playback plugin.
> > 2007-03-30 19:48:24.648 Registering MythDVD DVD Media Handler as a media
> handler ext()
> > 2007-03-30 19:48:24.649 Mediamonitor: Adding /dev/hda
> > no record for '/block/hda/device' in database
> > no record for '/block/hda/holders' in database
> > no record for '/block/hda/queue' in database
> > no record for '/block/hda/slaves' in database
> > no record for '/block/hda/subsystem' in database
> > no record for '/block/hda' in database
> > 2007-03-30 19:48:24.713 Registering MythDVD VCD Media Handler as a media
> handler ext()
> > 2007-03-30 19:48:24.755 MythPlugin::Init() dlerror: libexif.so.10:
> cannot open shared object file: No such file or directory
> > 2007-03-30 19:48:24.756 Unable to initialize plugin 'mythgallery'.
> > adding: ATAPI:0,0,0 -- DVD-ROM GDR8164B
> > 2007-03-30 19:48:25.135 Registering MythMusic Media Handler 1/2 as a
> media handler ext()
> > 2007-03-30 19:48:25.135 Registering MythMusic Media Handler 2/2 as a
> media handler ext(ogg,mp3,aac,flac)
> > 2007-03-30 19:48:25.135 MonitorRegisterExtensions(0x40,
> ogg,mp3,aac,flac)
> > 2007-03-30 19:48:26.413 Starting media monitor.
> > 2007-03-30 19:48:27.705 Looking for: '/mnt/cdrom/VIDEO_TS'
> > 2007-03-30 19:48:27.755 Looking for: '/mnt/cdrom/vcd'
> > 2007-03-30 19:48:27.755 Looking for: '/mnt/cdrom/svcd'
> > 2007-03-30 19:48:27.757 Media status changed...  New status is:
> MEDIASTAT_MOUNTED old status was MEDIASTAT_NOTMOUNTED
> > 2007-03-30 19:48:27.757 Posting MediaEvent
> > 2007-03-30 19:48:47.513 New DB connection, total: 2
> > 2007-03-30 19:48:47.514 Connected to database 'mythconverg' at host:
> localhost
> > QDate::fromString: Parameter out of range
> > 2007-03-30 19:48:47.533 TV: Attempting to change from None to
> WatchingPreRecorded
> > libdvdread: Using libdvdcss version 1.2.9 for DVD access
> >
> > libdvdread: Attempting to retrieve all CSS keys
> > libdvdread: This can take a _long_ time, please be patient
> >
> > libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000134
> > libdvdread: Elapsed time 0
> > libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x00004946
> > libdvdread: Elapsed time 0
> > libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x0000496b
> > libdvdread: Elapsed time 0
> > libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x001e4d92
> > libdvdread: Elapsed time 0
> > libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x001e4db7
> > libdvdread: Elapsed time 0
> > libdvdread: Found 2 VTS's
> > libdvdread: Elapsed time 0
> > libdvdnav: Using dvdnav version 0.1.10-xine from http://xine.sf.net
> > libdvdnav: DVD Title: HOUSE_Season1_Disc6
> > libdvdnav: DVD Serial Number: c6fdd0de
> > libdvdnav: DVD Title (Alternative): HOUSE_Season1_Disc6
> > libdvdnav: Unable to find map file
> '/home/myth/.dvdnav/HOUSE_Season1_Disc6.map'
> > libdvdnav: DVD disk reports itself with Region mask 0x00f70000. Regions:
> 4
> > 2007-03-30 19:48:48.053 Opened DVD device at //dev/dvd
> > 2007-03-30 19:48:48.054 There are 8 titles on the disk
> > 2007-03-30 19:48:48.054 Title 0 has 0 parts.
> > 2007-03-30 19:48:48.054 Title 1 has 5 parts.
> > 2007-03-30 19:48:48.054 Title 2 has 5 parts.
> > 2007-03-30 19:48:48.054 Title 3 has 2 parts.
> > 2007-03-30 19:48:48.054 Title 4 has 2 parts.
> > 2007-03-30 19:48:48.054 Title 5 has 2 parts.
> > 2007-03-30 19:48:48.054 Title 6 has 2 parts.
> > 2007-03-30 19:48:48.054 Title 7 has 2 parts.
> > 2007-03-30 19:48:48.063 DPMS Deactivated
> > 2007-03-30 19:48:48.475 AFD: Opened codec 0xa21bfd0, id(MPEG2VIDEO_XVMC)
> type(Video)
> > 2007-03-30 19:48:48.475 NVP: Disabling Audio, params(-1,-1,-1)
> > 2007-03-30 19:48:48.475 NVP: Disabling Audio, params(0,-1,-1)
> > 2007-03-30 19:48:48.532 VideoOutputXv: XvMCTex: Init failed
> > 2007-03-30 19:48:48.533 VideoOutputXv: XvMC Adaptor Name: 'NV17 Video
> Texture'
> > X Error: BadMatch (invalid parameter attributes) 8
> >   Major opcode:  141
> >   Minor opcode:  14
> >   Resource id:  0x15a
> > 2007-03-30 19:48:50.203 TV: Changing from None to WatchingPreRecorded
> > 2007-03-30 19:48:50.244 AFD: Warning, video codec 0xa21bfd0
> id(MPEG2VIDEO_XVMC) type (Video) already open.
> > 2007-03-30 19:48:50.245 AFD: Opened codec 0xb1922d0, id(AC3) type(Audio)
> > XvMC: picture structure FRAME
> > 2007-03-30 19:48:50.255 Opening ALSA audio device 'iec958:{ AES0 0x02
> }'.
> > 2007-03-30 19:48:50.306 Video timing method: USleep with busy wait
> > 2007-03-30 19:48:50.350 VideoOutputXv: ProcessFrameXvMC: Tried to reuse
> frame but failed
> > 2007-03-30 19:48:50.350 VideoOutputXv: ProcessFrameXvMC: Called without
> frame
> > ALSA lib control.c:910:(snd_ctl_open_noupdate) Invalid CTL
> /dev/sound/mixer1
> > 2007-03-30 19:48:50.358 AudioOutput Warning: Mixer attach error -2: No
> such file or directory
> >                         Check Mixer Name in Setup: '/dev/sound/mixer1'
> > 2007-03-30 19:48:50.359 NVP: Enabling Audio
> > 2007-03-30 19:48:50.393 VideoOutputXv: ProcessFrameXvMC: Tried to reuse
> frame but failed
> > 2007-03-30 19:48:50.393 VideoOutputXv: ProcessFrameXvMC: Called without
> frame
> > 2007-03-30 19:48:51.216 WriteAudio: buffer underrun
> > 2007-03-30 19:48:51.469 WriteAudio: buffer underrun
> > 2007-03-30 19:48:51.793 WriteAudio: buffer underrun
> > 2007-03-30 19:48:52.033 WriteAudio: buffer underrun
> > 2007-03-30 19:48:52.439 WriteAudio: buffer underrun
> > 2007-03-30 19:48:52.770 WriteAudio: buffer underrun
> > 2007-03-30 19:48:52.913 WriteAudio: buffer underrun
> > 2007-03-30 19:48:53.296 WriteAudio: buffer underrun
> > 2007-03-30 19:48:53.783 WriteAudio: buffer underrun
> > 2007-03-30 19:48:54.090 WriteAudio: buffer underrun
> > 2007-03-30 19:48:54.313 WriteAudio: buffer underrun
> > 2007-03-30 19:48:54.526 WriteAudio: buffer underrun
> > 2007-03-30 19:48:54.739 WriteAudio: buffer underrun
> > 2007-03-30 19:48:55.436 WriteAudio: buffer underrun
> > 2007-03-30 19:48:56.917 WriteAudio: buffer underrun
> > 2007-03-30 19:48:57.126 WriteAudio: buffer underrun
> > 2007-03-30 19:48:57.692 WriteAudio: buffer underrun
> > 2007-03-30 19:48:58.776 WriteAudio: buffer underrun
> > 2007-03-30 19:48:59.086 WriteAudio: buffer underrun
> > 2007-03-30 19:48:59.496 WriteAudio: buffer underrun
> > 2007-03-30 19:49:00.002 WriteAudio: buffer underrun
> > 2007-03-30 19:49:00.342 WriteAudio: buffer underrun
> > 2007-03-30 19:49:00.686 WriteAudio: buffer underrun
> > 2007-03-30 19:49:00.922 WriteAudio: buffer underrun
> > 2007-03-30 19:49:01.602 WriteAudio: buffer underrun
> > 2007-03-30 19:49:02.146 WriteAudio: buffer underrun
> > 2007-03-30 19:49:02.699 WriteAudio: buffer underrun
> > 2007-03-30 19:49:03.262 WriteAudio: buffer underrun
> > 2007-03-30 19:49:03.845 WriteAudio: buffer underrun
> > 2007-03-30 19:49:04.382 WriteAudio: buffer underrun
> > 2007-03-30 19:49:04.905 WriteAudio: buffer underrun
> > 2007-03-30 19:49:05.455 WriteAudio: buffer underrun
> > 2007-03-30 19:49:06.032 WriteAudio: buffer underrun
> > 2007-03-30 19:49:07.105 WriteAudio: buffer underrun
> > 2007-03-30 19:49:07.649 WriteAudio: buffer underrun
> > 2007-03-30 19:49:08.202 WriteAudio: buffer underrun
> > 2007-03-30 19:49:08.725 WriteAudio: buffer underrun
> > 2007-03-30 19:49:09.188 WriteAudio: buffer underrun
> > 2007-03-30 19:49:10.395 WriteAudio: buffer underrun
> > 2007-03-30 19:49:11.982 WriteAudio: buffer underrun
> > 2007-03-30 19:49:12.542 WriteAudio: buffer underrun
> > 2007-03-30 19:49:13.479 WriteAudio: buffer underrun
> > 2007-03-30 19:49:13.712 WriteAudio: buffer underrun
> > 2007-03-30 19:49:14.251 WriteAudio: buffer underrun
> > 2007-03-30 19:49:14.711 WriteAudio: buffer underrun
> > 2007-03-30 19:49:14.928 WriteAudio: buffer underrun
> > 2007-03-30 19:49:15.086 WriteAudio: buffer underrun
> > 2007-03-30 19:49:15.455 WriteAudio: buffer underrun
> > 2007-03-30 19:49:15.792 WriteAudio: buffer underrun
> > 2007-03-30 19:49:15.948 WriteAudio: buffer underrun
> > 2007-03-30 19:49:28.511 VideoOutputXv Error: Child     A        was
> already marked as available.
> > 2007-03-30 19:49:28.615 AFD: Warning, video codec 0xa21bfd0
> id(MPEG2VIDEO_XVMC) type (Video) already open.
> > 2007-03-30 19:49:28.615 AFD: Warning, audio codec 0xb1922d0 id(AC3) type
> (Audio) already open, leaving it alone.
> > 2007-03-30 19:49:28.635 AFD: Opened codec 0xb19d470, id(DVD_SUBTITLE)
> type(Subtitle)
> > 2007-03-30 19:49:28.677 DVDNAV_STOP
> > 2007-03-30 19:49:28.700 TV: Attempting to change from
> WatchingPreRecorded to None
> > 2007-03-30 19:49:28.727 TV: Changing from WatchingPreRecorded to None
> > 2007-03-30 19:49:29.731 DPMS Reactivated.
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