[mythtvnz] audio pauses latm-aac

Robin Gilks g8ecj at gilks.org
Thu Apr 5 09:47:34 BST 2012


> Good candidate
> Prime dvb-t
> Secret Wars 04/04/2012
> 2:45 minutes in from start
>
> 2012-04-05 20:16:58.475 AFD Warning: Audio -76 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:16:58.515 AFD Warning: Audio -36 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:16:58.555 AFD Warning: Audio 4 ms behind video but already
> 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:16:58.635 AFD Warning: Audio -87 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:16:58.675 AFD Warning: Audio -47 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:16:58.715 AFD Warning: Audio -7 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
>
>
> Prime dvb-t
> 05/04/2012   Prime Spotlight: The Sinking of the Laconia
> 14 seconds from start..
>
> 2012-04-05 20:22:37.659 AFD Warning: Audio -90 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:22:37.698 AFD Warning: Audio -50 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:22:37.858 AFD Warning: Audio -60 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:22:37.898 AFD Warning: Audio -20 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> 2012-04-05 20:22:37.938 AFD Warning: Audio 20 ms behind video but
> already 180 video frames queued. AV-Sync might be broken.
> etc etc..

Ditto.
Weekend Murders: Miss Marple from Sat 31st, this sample about 36 minutes in.
Really irritating that Prime Rocks: The Who on Monday night suffers the
same problem.

2012-04-05 20:21:08.878 ALSA, Error: WriteAudio: buffer underrun
2012-04-05 20:21:08.926 AFD Warning: Audio 347 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:08.983 AFD Warning: Audio 387 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.038 AFD Warning: Audio 427 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.097 AFD Warning: Audio 467 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.154 ALSA, Error: WriteAudio: buffer underrun
2012-04-05 20:21:09.157 AFD Warning: Audio 337 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.214 AFD Warning: Audio 206 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.266 AFD Warning: Audio 246 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.322 AFD Warning: Audio 286 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.380 AFD Warning: Audio 326 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.434 AFD Warning: Audio 366 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.496 ALSA, Error: WriteAudio: buffer underrun
2012-04-05 20:21:09.496 AFD Warning: Audio 235 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.549 AFD Warning: Audio 275 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.606 AFD Warning: Audio 315 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.662 AFD Warning: Audio 355 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.702 AFD Warning: Audio 395 ms behind video but already
180 video frames queued. AV-Sync might be broken.
2012-04-05 20:21:09.761 ALSA, Error: WriteAudio: buffer underrun

/zotac/usr/bin/mythfrontend --version
Please attach all output as a file in bug reports.
MythTV Version   : v0.24.2-15-gc29d36f
MythTV Branch    : fixes/0.24
Network Protocol : 63
Library API      : 0.24.20110505-1
QT Version       : 4.7.4
Options compiled in:
 linux profile using_alsa using_oss using_backend using_bindings_perl
using_bindings_python using_dvb using_frontend using_hdhomerun
using_hdpvr using_iptv using_ivtv using_lirc using_mheg
using_opengl_video using_opengl_vsync using_qtdbus using_qtwebkit
using_v4l using_x11 using_xrandr using_xv using_bindings_perl
using_bindings_python using_mythtranscode using_opengl using_vdpau
using_ffmpeg_threads using_live using_mheg

Built Feb 25 10:01, Alsa 1.0.25 was emerged on 18th March on the Zotac
frontend (6th Mar on the AMD box), but this problem I've only noticed in
the last week and a bit.

One other data point - my Zotac ION has dropouts of 2-10 seconds at a time
but my 8200 motherboard with the AMD 5050 CPU only drops out for 1/2 a
second at a time.

-- 
Robin Gilks





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