[mythtv-users] Raspberry Pi 3 / MythTV Light Package - super subtle jerky motion

Kris B. krisbee at krisbee.com
Sun Nov 27 00:30:06 UTC 2016 

This doesn't happen a lot, but there is a super subtle jerkiness
sometimes on camera sweeps/pans if there is a lot of things going on
when watching mpeg2 video.

I am using hardware decoding for MPEG2/OpenMax Normal setting (I see it
with High Quality as well).  I have the GPU memory set to 320mb
(config.txt):
dtparam=audio=on
gpu_mem=320
core_freq=250
sdram_freq=450
over_voltage=6

This happens with DVD videos from my Video group as well as 720/1080
video recorded OTA.

I don't see anything in the mythfrontend logs.  Is there anything else I
can tweak?  I use ALSA Default, Stereo, disabled pulseaudio from
autospawn... Thanks in advance!

Log from mythfrontend:
2016-11-26 19:00:39.494467 N [874/874] CoreContext
mythcorecontext.cpp:1683 (ReInitLocale) - Setting QT default locale to
en_US
2016-11-26 19:00:39.538736 I [874/874] CoreContext
mythmainwindow.cpp:1041 (Init) - Using Frameless Window
2016-11-26 19:00:39.538896 I [874/874] CoreContext
mythmainwindow.cpp:1052 (Init) - Using Full Screen Window
2016-11-26 19:00:39.540555 I [874/874] CoreContext
mythmainwindow.cpp:1079 (Init) - UI Screen Resolution: 1360 x 768
2016-11-26 19:00:39.885288 I [874/874] CoreContext
mythmainwindow.cpp:1185 (Init) - Using the Qt painter
2016-11-26 19:00:41.355055 I [874/874] CoreContext
mythuiwebbrowser.cpp:1090 (LoadUserStyleSheet) - MythUIWebBrowser:
Loading css from -
file:///usr/share/mythtv/themes/default/htmls/mythbrowser.css
2016-11-26 19:00:41.361232 I [874/874] CoreContext
mythuiwebbrowser.cpp:997 (Init) - MythUIWebBrowser: enabling plugins
2016-11-26 19:00:41.457245 W [874/874] CoreContext mythpainter.cpp:41
(Teardown) - MythPainter: 42 images not yet de-allocated.
2016-11-26 19:00:41.595430 N [874/874] CoreContext main.cpp:1101
(RunMenu) - Found mainmenu.xml for theme 'Mythbuntu'
2016-11-26 19:01:07.779399 I [874/874] CoreContext
mythmainwindow.cpp:2703 (customEvent) - Updating the frontend idle time
to: 2 mins
2016-11-26 19:01:51.129709 I [874/874] CoreContext
mythmainwindow.cpp:2703 (customEvent) - Updating the frontend idle time
to: 2 mins
2016-11-26 19:01:59.494422 I [874/874] CoreContext
mythmainwindow.cpp:2703 (customEvent) - Updating the frontend idle time
to: 2 mins
2016-11-26 19:02:32.565479 I [874/874] CoreContext tv_play.cpp:1092 (TV)
- TV::TV(): Creating TV object
2016-11-26 19:02:32.590594 N [874/874] CoreContext
mythmainwindow.cpp:2951 (PauseIdleTimer) - Suspending idle timer
2016-11-26 19:02:32.600765 I [874/874] CoreContext tv_play.cpp:1314
(Init) - TV::Init(): Created TvPlayWindow.
2016-11-26 19:02:32.717704 I [874/874] CoreContext tv_play.cpp:2275
(HandleStateChange) - TV::HandleStateChange(): Attempting to change from
None to WatchingPreRecorded
2016-11-26 19:02:32.912643 N [874/874] CoreContext audioplayer.cpp:167
(ReinitAudio) - AudioPlayer: Enabling Audio
2016-11-26 19:02:33.675114 I [874/874] CoreContext
avformatdecoder.cpp:2113 (ScanStreams) - AFD: codec AC3 has 6 channels
2016-11-26 19:02:33.676282 I [874/874] CoreContext
avformatdecoder.cpp:2602 (OpenAVCodec) - AFD: Opened codec 0x17d3570,
id(AC3) type(Audio)
2016-11-26 19:02:33.683156 I [874/874] CoreContext
avformatdecoder.cpp:2113 (ScanStreams) - AFD: codec AC3 has 2 channels
2016-11-26 19:02:33.684290 I [874/874] CoreContext
avformatdecoder.cpp:2602 (OpenAVCodec) - AFD: Opened codec 0x17d3c80,
id(AC3) type(Audio)
2016-11-26 19:02:33.715673 I [874/874] CoreContext
avformatdecoder.cpp:2602 (OpenAVCodec) - AFD: Opened codec 0x15adaf0,
id(MPEG2VIDEO) type(Video)
2016-11-26 19:02:33.771918 I [874/874] CoreContext
audio/audiooutputbase.cpp:823 (Reconfigure) - AOBase: Opening audio
device 'sysdefault:CARD=ALSA' ch 2(2) sr 48000 sf signed 16 bit reenc 0
2016-11-26 19:02:33.776198 W [874/874] CoreContext
audio/audiooutputalsa.cpp:775 (SetParameters) - ALSA: Requested 500000us
got 341333 buffer time
2016-11-26 19:02:34.948005 E [874/874] CoreContext mythxdisplay.cpp:191
(GetRefreshRate) - X11 ModeLine query returned zeroes
2016-11-26 19:02:35.080537 I [874/874] CoreContext videoout_omx.cpp:471
(Init) - VideoOutputOMX: Init: OSD display uses softblend
2016-11-26 19:02:35.104138 I [874/874] CoreContext osd.cpp:232
(OverrideUIScale) - OSD: Base theme size: 1920x1080
2016-11-26 19:02:35.104182 I [874/874] CoreContext osd.cpp:234
(OverrideUIScale) - OSD: Scaling factors: 1x1
2016-11-26 19:02:35.365677 I [874/874] CoreContext osd.cpp:232
(OverrideUIScale) - OSD: Base theme size: 1920x1080
2016-11-26 19:02:35.365733 I [874/874] CoreContext osd.cpp:234
(OverrideUIScale) - OSD: Scaling factors: 1x1
2016-11-26 19:02:35.381225 E [874/874] CoreContext mythxdisplay.cpp:191
(GetRefreshRate) - X11 ModeLine query returned zeroes
2016-11-26 19:02:35.383220 E [874/874] CoreContext mythxdisplay.cpp:191
(GetRefreshRate) - X11 ModeLine query returned zeroes
2016-11-26 19:02:35.385651 I [874/874] CoreContext mythplayer.cpp:1833
(InitAVSync) - Player(0): Video timing method: USleep with busy wait
2016-11-26 19:02:35.388413 I [874/874] CoreContext tv_play.cpp:5855
(StartPlayer) - TV::StartPlayer(): Created player.
2016-11-26 19:02:35.388788 I [874/874] CoreContext tv_play.cpp:2532
(HandleStateChange) - TV::HandleStateChange(): Changing from None to
WatchingPreRecorded
2016-11-26 19:02:35.436040 I [874/874] CoreContext tv_play.cpp:2632
(HandleStateChange) - TV::HandleStateChange(): Main UI disabled.
2016-11-26 19:02:35.436280 I [874/874] CoreContext tv_play.cpp:424
(StartTV) - TV::StartTV(): Entering main playback loop.
2016-11-26 19:02:35.488068 E [874/1074] Decoder avformatdecoder.cpp:3582
(ProcessVideoPacket) - AFD: Unknown decoding error
2016-11-26 19:02:35.537226 I [874/874] CoreContext
screensaver-x11.cpp:149 (DisableDPMS) - ScreenSaverX11Private: DPMS
Deactivated 1
2016-11-26 19:02:36.012276 I [874/874] CoreContext videooutbase.cpp:1492
(DisplayOSD) - VideoOutput: Created YV12 OSD.
2016-11-26 19:02:39.909223 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 102ms for video buffers
AAAAAAALLPPP
2016-11-26 19:02:42.118304 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 103ms for video buffers
AAAALLAAAPPP
2016-11-26 19:08:11.841924 I [874/874] CoreContext
screensaver-x11.cpp:161 (RestoreDPMS) - ScreenSaverX11Private: DPMS
Reactivated 1
2016-11-26 19:10:12.003701 I [874/874] CoreContext
screensaver-x11.cpp:149 (DisableDPMS) - ScreenSaverX11Private: DPMS
Deactivated 1
2016-11-26 19:12:16.501687 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 101ms for video buffers
AAAAALALAPPP
2016-11-26 19:13:07.670654 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 101ms for video buffers
AAALLAAAAPPP
2016-11-26 19:13:08.317949 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 105ms for video buffers
AAALAAAALPPP
2016-11-26 19:13:09.308796 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 104ms for video buffers
LAAAAAALAPPP
2016-11-26 19:13:10.610557 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 104ms for video buffers
ALAAALAAAPPP
2016-11-26 19:13:10.715436 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 209ms for video buffers
AUALAULAUPPP
2016-11-26 19:13:13.025612 N [874/874] CoreContext mythplayer.cpp:2231
(PrebufferEnoughFrames) - Player(0): Waited 105ms for video buffers
LAAALAAAAPPP
2016-11-26 19:13:16.032348 N [874/874] CoreContext mythplayer.cpp:2223
(PrebufferEnoughFrames) - Player(0): To see more buffering messages use
-v playback
2016-11-26 19:19:34.533674 I [874/874] CoreContext
screensaver-x11.cpp:161 (RestoreDPMS) - ScreenSaverX11Private: DPMS
Reactivated 1
2016-11-26 19:20:03.795722 I [874/874] CoreContext
screensaver-x11.cpp:149 (DisableDPMS) - ScreenSaverX11Private: DPMS
Deactivated 1

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