[mythtv-users] mythplayer.cpp:2176 (PrebufferEnoughFrames) Player(6): Waited 102ms for video buffers AAAAAAAAAAAfff

[Hamish Moffatt]

On 29/07/16 04:33, Brian J. Murrell wrote:
> On Mon, 2016-07-25 at 10:56 -0400, Peter Bennett wrote:
>>   
>> You said you upgraded ubuntu to Precise.
> No.  *From* Precise to Trusty.

I'm having this exact same problem. I upgraded from Mythbuntu 14.04 to 
16.04 and MythTV 0.27 to 0.28 at the same time a few months ago.

Since then, playback is generally OK, except it'll randomly start to 
stutter and then won't play anything at all properly. Audio continues ok 
for a while although wildly out of sync with the video.

Restarting mythfrontend and even restarting X does not help; rebooting 
seems to be required. That makes me wonder if it isn't some video driver 
issue instead.

The machine is combined frontend/backend so I/O is not an issue.

Graphics is Intel Haswell mobile. I'm using VAAPI Normal for playback. 
Once this failure starts, other modes don't work either.




Aug  3 20:40:15 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext mythmainwindow.cpp:2703 (customEvent) Updating the frontend idle time to: 90 mins

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:1092 (TV) TV::TV(): Creating TV object

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: N CoreContext mythmainwindow.cpp:2951 (PauseIdleTimer) Suspending idle timer

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:1314 (Init) TV::Init(): Created TvPlayWindow.

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:2275 (HandleStateChange) TV::HandleStateChange(): Attempting to change from None to WatchingPreRecorded

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: E CoreContext audio/audiooutputalsa.cpp:173 (GetPCMInfo) ALSA: snd_pcm_info_get_card: Operation not permitted

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: N CoreContext audioplayer.cpp:167 (ReinitAudio) AudioPlayer: Enabling Audio

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext avformatdecoder.cpp:2111 (ScanStreams) AFD: codec MP2 has 2 channels

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext avformatdecoder.cpp:2600 (OpenAVCodec) AFD: Opened codec 0x2d11480, id(MP2) type(Audio)

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext avformatdecoder.cpp:2600 (OpenAVCodec) AFD: Opened codec 0x560b640, id(MPEG2VIDEO) type(Video)

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext audio/audiooutputbase.cpp:809 (Reconfigure) AOBase: Opening audio device 'default' ch 2(2) sr 48000 sf signed 16 bit reenc 0

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: E CoreContext audio/audiooutputalsa.cpp:953 (OpenMixer) ALSA: no playback control PCM found on mixer device default

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: E CoreContext audio/audiooutputalsa.cpp:498 (OpenDevice) ALSA: Unable to open audio mixer. Volume control disabled

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext DisplayRes.cpp:162 (SwitchToVideo) Using 1920x1080 50.000 Hz

Aug  3 20:40:23 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext openglvideo.cpp:233 (Init) GLVid: Using raw RGBA input textures.

Aug  3 20:40:24 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext mythplayer.cpp:1795 (InitAVSync) Player(3): Video timing method: DRM

Aug  3 20:40:24 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:5855 (StartPlayer) TV::StartPlayer(): Created player.

Aug  3 20:40:24 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:2532 (HandleStateChange) TV::HandleStateChange(): Changing from None to WatchingPreRecorded

Aug  3 20:40:24 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:2632 (HandleStateChange) TV::HandleStateChange(): Main UI disabled.

Aug  3 20:40:24 bandicoot mythfrontend.real: mythfrontend[23159]: I CoreContext tv_play.cpp:424 (StartTV) TV::StartTV(): Entering main playback loop.

Aug  3 20:41:33 bandicoot mythfrontend.real: mythfrontend[23159]: N CoreContext mythplayer.cpp:2178 (PrebufferEnoughFrames) Player(3): Waited 105ms for video buffers AAAAAAAAAAAAAAAAAAAAALPff

Aug  3 20:41:33 bandicoot mythfrontend.real: mythfrontend[23159]: N CoreContext mythplayer.cpp:2178 (PrebufferEnoughFrames) Player(3): Waited 105ms for video buffers LAAAAAAAAAAAAAAAAAAAAfPAA

Aug  3 20:41:33 bandicoot mythfrontend.real: mythfrontend[23159]: N CoreContext mythplayer.cpp:2178 (PrebufferEnoughFrames) Player(3): Waited 105ms for video buffers LfAAAAAAAAAAAAAAAAAAAfPAA




Any ideas?

I've started playing my recordings on my BD player via DLNA instead out 
of frustration with this lately.

Hamish