Bug 2031441

Summary:	Broken sound after moving playhead in gstreamer applications
Product:	[Fedora] Fedora	Reporter:	takuvata
Component:	gstreamer1	Assignee:	Brian Pepple <bdpepple>
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	35	CC:	bdpepple, james, thedatum+bz, uraeus, wtaymans, zhangxiang_CHN
Target Milestone:	---
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Hardware:	x86_64
OS:	Linux
Whiteboard:
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Last Closed:	2022-02-18 14:56:13 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description takuvata 2021-12-12 02:14:49 UTC

Description of problem:
Moving playhead in any Gstreamer application results in audio randomly not playing or stuttering. Non Gstreamer multimedia applications are not affected.

Version-Release number of selected component (if applicable):


How reproducible:
Almost always. Sometimes, randomly it works ok. Sometimes it seems to work ok all the time, but then starts behaving erratically after a reboot. Reproduced on two different machines.

Steps to Reproduce:
1. Play audio or video file in some gstreamer application (totem, rhythmbox)
2. Skip using either mouse or keyboard to different places in timeline
3.

Actual results:
Audio not playing or stuttering while playhead moves forward. In case of video player - video also continues playing.

Expected results:
Audio skipping to the point in time and playing from that position.


Additional info:

Comment 1 James 2021-12-24 18:33:03 UTC

This feels like it should be a regression, but it happens in 1.19.2-1.fc35 and 1.19.3-1.fc35. Surprised I didn't notice it before.

Doesn't seem to be specific to any codec. Also tried downgrading pipewire 0.3.40 -> 0.3.38 to see if that was the problem.

Comment 2 James 2021-12-24 18:41:21 UTC

Found the upstream issue:

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/909

Fingers pipewire -- see https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1857 and https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1947 . I've tried pipewire 0.3.42 from Koji but the issue remains.

Comment 3 takuvata 2022-01-13 10:02:58 UTC

It seems like recent update to pipewire 0.3.43 largely fixed the problem.

Comment 4 thedatum+bz 2022-01-14 08:43:08 UTC

Same here. Not noticing the problem anymore with pipewire 0.3.43.

Comment 5 ZHANG Xiang 2022-01-17 02:44:29 UTC

For me it still has some tolerable glitches.

Comment 6 takuvata 2022-02-18 14:56:13 UTC

I think this can be closed at this point.