Opened 4 years ago

Closed 8 months ago

#12933 closed Bug Report - General (Unverified)

Stutter in LiveTv playback. AV sync off

Reported by: dabears_rule@… Owned by:
Priority: minor Milestone: unknown
Component: MythTV - General Version: 0.28.0
Severity: medium Keywords:
Cc: Ticket locked: no


MythTV Version : v0.28-80-g43fcdd9 NVIDIA-SMI 340.98 Ubuntu 16.04.1 LTS HDHR Prime Separate frontend and backend

If I start live tv on a 720p channel. It starts and plays fine. If I switch to a 720p channel after live tv has been running, the video begins to stutter Also When I start livetv, on any channel, the av sync is less than 1. If I switch to a 720p channel, the av sync becomes 3 or more and the video stutters If I switch to a 1080i channel, the av sync is between 1 and 2 but I do not see a video stutter.

In any of the instances above, hitting pause clears the stutter and the av sync goes to less than 1

When the stutter is happening, the frontends logs the following.

Nov 14 21:48:19 g430 mythfrontend.real: mythfrontend[1757]: W Decoder avformatdecoder.cpp:4899 (GetFrame?) AFD: Audio 3373 ms behind video but already 220 video frames queued. AV-Sync might be broken.

Change History (2)

comment:1 Changed 4 years ago by dabears_rule@…

This error is also appearing when the stuttering starts. g430 mythfrontend.real: mythfrontend[1721]: I CoreContext? jitterometer.cpp:120 (RecordEndTime?) Player(7): FPS: 59.96 Mean: 16677 St$676 Std.Dev: 70 CPUs: 1% 0% 10% 1%

comment:2 Changed 8 months ago by Stuart Auchterlonie

Resolution: Unverified
Status: newclosed

Closing all old tickets in trac.

If your issue still persists, please open an issue in Github

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