[mythtv-users] Poor H.264 1080p playback
pb.mythtv at gmail.com
Fri Jan 4 16:07:21 UTC 2019
On 1/4/19 10:47 AM, Richard Shaw wrote:
> On Fri, Jan 4, 2019 at 9:40 AM Stephen Worthington
> <stephen_agent at jsw.gen.nz <mailto:stephen_agent at jsw.gen.nz>> wrote:
> On Fri, 4 Jan 2019 08:16:40 -0600, you wrote:
> >On Fri, Jan 4, 2019 at 7:16 AM Stephen Worthington
> <stephen_agent at jsw.gen.nz <mailto:stephen_agent at jsw.gen.nz>>
> >> There should not be any problems with that combination - the GT730
> >> does everything that MythTV needs. It is more likely you have
> one of
> >> the settings wrong. Check that you are using the VDPAU High
> >> profile, and that you have set that profile to use all 4 CPU cores.
> >> What sort of visual problems are you seeing?
> >No skipping or anything just video "slow downs". It's just not
> So this happens only on H.264 videos? What is the source of those
> videos? Are they all recordings, or does it happen on downloaded
> H.264 files as well? Are the affected files interlaced?
> H.264 recordings from Comcast seem to play back fine. It's only
> archived Blurays (which is why I assumed maybe it was a bitrate issue).
You did not mention what version of MythTV you are running. With V30
(master) you can try the new AVSYNC2 in the playback advanced settings.
Also run with -v playback and see if it is dropping frames or waiting
for video buffers. Those messages will tell where the problem is.
Waiting for video buffers means a decoding problem, dropping frames
means a rendering problem.
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