Open stps opened 3 months ago
When increasing or decreasing playback speed, the audio doesn't change speed until a few seconds later (and is out of sync with the video until then). There are also video stutters: when speed is increased, the video freezes (but mpv doesn't report dropped frames), when decreased there is a smaller stutter with dropped frames reported.
This is a known issue. It is mentioned in #11955. I have the plan to alleviate the problem (#14058) - there is no way to change the speed of already enqueued samples, but at least we should ensure AV sync. I'm still working on it; but I have little spare time recently. Maybe I can do it in the future.
mpv Information
Important Information
Reproduction Steps
Play any video with
mpv --no-config --ao=avfoundation
, change the playback speed with [ and ].Expected Behavior
Similar performance to CoreAudio, which can handle speed changes smoothly.
Actual Behavior
When increasing or decreasing playback speed, the audio doesn't change speed until a few seconds later (and is out of sync with the video until then).
There are also video stutters: when speed is increased, the video freezes (but mpv doesn't report dropped frames), when decreased there is a smaller stutter with dropped frames reported.
Log File
output.txt
Sample Files
No response
I carefully read all instruction and confirm that I did the following:
--log-file=output.txt
.