RESOLVED FIXED252480
[GStreamer][MSE] Reinstall matroskademuxForceSegmentStartToEqualZero probe on relinking 
https://bugs.webkit.org/show_bug.cgi?id=252480
Summary [GStreamer][MSE] Reinstall matroskademuxForceSegmentStartToEqualZero probe on...
Enrique Ocaña
Reported 2023-02-17 05:56:05 PST
When a matroskademux src pad is relinked (because the old one was removed), the probe that corrects the segment start is lost with the disappearing pad and never reinstalled on the replacing one. This can cause issues, for instance, while doing trick playback in reverse on Broadcom devices, which don't need parsers. During trickplay, pads between demux and appsink elements are relinked. GstBuffers related to trick playback are rejected/clipped by appsink (more precisely, by its base class: GstBaseSink), because GstSegment start position value don't match to those GstBuffers. See: https://github.com/WebPlatformForEmbedded/WPEWebKit/pull/1033
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Enrique Ocaña
Comment 1 2023-02-17 06:23:59 PST
Pull request: https://github.com/WebKit/WebKit/pull/10275
EWS
Comment 2 2023-02-24 04:41:09 PST
Committed 260794@main (61138013faef): <https://commits.webkit.org/260794@main> Reviewed commits have been landed. Closing PR #10275 and removing active labels.
Radar WebKit Bug Importer
Comment 3 2023-02-24 04:42:20 PST
<rdar://problem/105879436>
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