[mythtv-users] Stutters with 1080i at 25fps H264 AC3 2 channel audio on a 50Hz display live playback.

[Stephen Hocking]

Hi all,

One of our TV channels in Australia, ABC20, was recently created as per the
standard in the subject. It seems prone to stuttering on live playback. The
system has a Nvidia 610 card (the only passively cooled thing I could find
at the time) using vdpau vdpau, for playback and a quad core Skylake i5. I
see messages like

Dec 10 09:01:51 bong mythfrontend.real: mythfrontend[6007]: N CoreContext
mythplayer.cpp:2176 (PrebufferEnoughFrames) Player(2): Waited 1870ms for
video buffers AAAAAAAAAAAdLLLL
Dec 10 09:01:51 bong mythfrontend.real: mythfrontend[6007]: N CoreContext
mythplayer.cpp:2176 (PrebufferEnoughFrames) Player(2): Waited 1973ms for
video buffers AAAALAALLAAdAAAA
Dec 10 09:01:54 bong mythfrontend.real: mythfrontend[6007]: N CoreContext
mythplayer.cpp:2176 (PrebufferEnoughFrames) Player(2): Waited 102ms for
video buffers ALLAAAAAdAAADALd


When I'm playing back a recording it's fine. When I'm playing back
something that's in the process of being recorded, it's fine, which seems
to rule out bandwidth to/from the recording disk (which is NFS mounted) as
an issue.

-- 

  "I and the public know
  what all schoolchildren learn
  Those to whom evil is done
  Do evil in return"		W.H. Auden, "September 1, 1939"
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