[mythtv-commits] Ticket #10212: Transcoded recordings playback broken (stutters, audio failure) during November commits
MythTV
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Sun Feb 19 03:24:15 UTC 2012
#10212: Transcoded recordings playback broken (stutters, audio failure) during
November commits
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Reporter: jk90090@… | Owner: danielk
Type: Bug Report - General | Status: assigned
Priority: minor | Milestone: unknown
Component: MythTV - Video Playback | Version: Unspecified
Severity: medium | Resolution:
Keywords: transcoded recordings | Ticket locked: 0
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Comment (by Andrew Leech <andrew@…>):
This sounds like the exact same problem I'm having, with medibuntu daily
build (v0.25pre-4564-g1fc5ed1)
This appears to happen for me on new recordings (dvb-t) as well as
transcoded ones, but get worse once transcoded.
The defining points to me seem to be:
"Enabling buffering optimisations for low bitrate stream."
before a lot of consecutive:
"Player(3): Waited 225ms for video buffers
AAAAAAAAAAAAAAAAAAAAuAAAAAAAAAAP"
and similar, whenever skipping is going on.
Changing the HD Ringbuffer size makes no difference, nor do realtime
threads or the audio buffering setting.
I've switched from nvidia vdpau to xvid to opengl to intel vaapi (onboard)
and had no change.
The skips always happens at exactly the same point in recordings, usually
for ~10 - 20 seconds before being fine for a while.
Similarly, I tried moving the file from one hard drive to another and
still no change, same skip points.
Crucially, I also found on the new playback stats available through the
OSD, the "available video buffer", which normally sits around 80%-90%
during playback, drops to 0% during the skips.
I haven't found much information about what this stat actually refers to
yet, although I'm guessing it's the video buffer that's now automatically
sized (optimised)?
Andrew
--
Ticket URL: <http://code.mythtv.org/trac/ticket/10212#comment:28>
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