[mythtv-users] stuttering / slow video audio using VDPAU w mythbuntu14.04 on Dual Core 1.86 GHz Atom D2550 nvidia GT520M

Anthony Hill arhill at gmail.com
Thu May 1 06:46:16 UTC 2014 

To tide the household over, we are currently using XMBC for watching
movies, but it is complaining of version issues when I try to use it for TV
- and I;ve been reluctant to go outside of the official repositories for
this brand new install.

It _has_ worked on this hardware before - but different versions of
everything.


On Thu, May 1, 2014 at 2:21 PM, jacek burghardt
<jaceksburghardt at gmail.com>wrote:

> Did you try to watch tv using xbmc ? See if it works.
>
>
> On Wed, Apr 30, 2014 at 10:17 PM, Anthony Hill <arhill at gmail.com> wrote:
>
>> Hey all,
>>
>> Please excuse the repost - but I've had no TV for almost 2 weeks - I (and
>> the kids) are getting frantic !
>>
>> ..to reiterate -  I;ve got this killer problem - with VDPAU and audio
>> enabled, video and audio stutter and play real slow on the latest mythbuntu.
>>
>> I've tried all the available nvidia drivers (from the hardware drivers
>> menu), messed with the audio buffers, created scripts to spin the CPU to
>> make sure it doesnt drop too low, and tried every combination of audio
>> output devices and each VDPAU profile. Audio is just standard analog stereo
>> out the front headphone / speaker jack.
>>
>> The only things that have made any significant difference are :-
>>
>> * disable audio. Video is smooth and full speed using all VDPAU profiles
>> for HD and SD video and TV if I use the null audio driver.
>> * disable VDPAU. Sound and video are fine, as long as I dont play HD
>> video or TV.
>>
>> ..this is a stock mythbuntu system - no crazy drivers from weird
>> repositories or anything. The hardware has been awesome on older mythtv's
>> using VDPAU.
>>
>> Totem and XBMC both play HD video fine. mplayer is a bit crap tho. (audio
>> sync is all over the place)
>>
>> I'm surprised no one else is having these problems - I would have thought
>> this hardware would have been a pretty popular frontend - and as I said -
>> its a stock standard mythbuntu install.
>>
>> ..I am at a loss - should I raise a ticket ?
>>
>> Thanks.
>>
>> btw. Here is a repost of the logs I collected by watching live SD TV,
>> VDPAU slim profile, with alsa default audio.
>>
>> Both the audio and the video were very stuttery and slow. 1/2 speed or
>> less :-
>>
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:1058 (TV) TV: Creating TV object
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: N
>> CoreContext mythmainwindow.cpp:2638 (PauseIdleTimer) Suspending idle timer
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:1275 (Init) TV: Created TvPlayWindow.
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2201 (HandleStateChange) TV: Attempting to change
>> from None to WatchingLiveTV
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythcorecontext.cpp:423 (ConnectCommandSocket) MythCoreContext:
>> Connecting to backend server: 10.0.100.10:6543 (try 1 of 1)
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: N
>> CoreContext tv_play.cpp:2270 (HandleStateChange) TV: Spawning LiveTV
>> Recorder -- begin
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: N
>> CoreContext tv_play.cpp:2277 (HandleStateChange) TV: Spawning LiveTV
>> Recorder -- end
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2298 (HandleStateChange) TV: playbackURL(myth://
>> 10.0.100.10:6543/1560_20140428105853.mpg) cardtype(DUMMY)
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: E
>> CoreContext audio/audiooutputalsa.cpp:172 (GetPCMInfo) ALSA:
>> snd_pcm_info_get_card: Operation not permitted
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: N
>> CoreContext audioplayer.cpp:164 (ReinitAudio) AudioPlayer: Enabling Audio
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythrender_vdpau.cpp:1689 (CreatePresentationSurfaces) VDPAU:
>> Created 2 output surfaces.
>> Apr 28 20:59:28 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythrender_vdpau.cpp:411 (Create) VDPAU: Created VDPAU render
>> device 1920x1080
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythplayer.cpp:1780 (InitAVSync) Player(1): Video timing
>> method: USleep with busy wait
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:5595 (StartPlayer) TV: Created player.
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2459 (HandleStateChange) TV: Changing from None to
>> WatchingLiveTV
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2471 (HandleStateChange) TV: State is LiveTV & mctx
>> == ctx
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2473 (HandleStateChange) TV: UpdateOSDInput done
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2475 (HandleStateChange) TV: UpdateLCD done
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2477 (HandleStateChange) TV: ITVRestart done
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2550 (HandleStateChange) TV: Main UI disabled.
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:411 (StartTV) TV: Entering main playback loop.
>> Apr 28 20:59:29 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythrender_vdpau.cpp:597 (CheckOutputSurfaces) VDPAU: Added 2
>> output surfaces (total 4, max 4)
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext avformatdecoder.cpp:1898 (ScanStreams) AFD: codec AC3 has 2
>> channels
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext avformatdecoder.cpp:2378 (OpenAVCodec) AFD: Opened codec
>> 0x22e5160, id(AC3) type(Audio)
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: W
>> CoreContext mythpainter.cpp:36 (Teardown) MythPainter: 5 images not yet
>> de-allocated.
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythpainter_vdpau.cpp:108 (ClearCache) VDPAU Painter: Clearing
>> VDPAU painter cache.
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythrender_vdpau.cpp:1689 (CreatePresentationSurfaces) VDPAU:
>> Created 2 output surfaces.
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythrender_vdpau.cpp:411 (Create) VDPAU: Created VDPAU render
>> device 1920x1080
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: N
>> CoreContext mythplayer.cpp:523 (CheckExtraAudioDecode) Player(1): Forcing
>> decode extra audio option on (Video method requires it).
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext avformatdecoder.cpp:2378 (OpenAVCodec) AFD: Opened codec
>> 0x1949580, id(MPEG2VIDEO) type(Video)
>> Apr 28 20:59:31 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext audio/audiooutputbase.cpp:792 (Reconfigure) AOBase: Opening
>> audio device 'default' ch 2(2) sr 48000 sf 32 bit floating point reenc 0
>> Apr 28 20:59:32 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythrender_vdpau.cpp:597 (CheckOutputSurfaces) VDPAU: Added 2
>> output surfaces (total 4, max 4)
>> Apr 28 20:59:37 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2201 (HandleStateChange) TV: Attempting to change
>> from WatchingLiveTV to None
>> Apr 28 20:59:37 zeddy mythfrontend.real: mythfrontend[10855]: W
>> CoreContext mythpainter.cpp:36 (Teardown) MythPainter: 5 images not yet
>> de-allocated.
>> Apr 28 20:59:37 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext mythpainter_vdpau.cpp:108 (ClearCache) VDPAU Painter: Clearing
>> VDPAU painter cache.
>> Apr 28 20:59:37 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:2459 (HandleStateChange) TV: Changing from
>> WatchingLiveTV to None
>> Apr 28 20:59:37 zeddy mythfrontend.real: mythfrontend[10855]: I
>> CoreContext tv_play.cpp:413 (StartTV) TV: Exiting main playback loop.
>> Apr 28 20:59:37 zeddy mythfrontend.real: mythfrontend[10855]: N
>> CoreContext mythmainwindow.cpp:2643 (PauseIdleTimer) Resuming idle timer
>>
>> --
>> Regards,
>>
>> Anthony Hill
>>
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>>
>
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-- 
Regards,

Anthony Hill
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