RESOLVED FIXED302918
MediaPlayerPrivateWebM will attempt to re-enqueue more samples indefinitely even when the AudioVideoRenderer isn't ready for it 
https://bugs.webkit.org/show_bug.cgi?id=302918
Summary MediaPlayerPrivateWebM will attempt to re-enqueue more samples indefinitely e...
Jean-Yves Avenard [:jya]
Reported 2025-11-20 22:08:01 PST
The AudioVideoRendererRemote only allows to enqueue up to 20 frames without getting a response from the GPU process. When 20 frames have been enqueued, AudioVideoRendererRemote::isReadyForMoreData() will return false ; when this occurs, the MediaPlayerPrivateWebM will call AudioVideoRendererRemote::requestMediaDataWhenReady() which does query the GPU process. The webm player attempts then to re-enqueue frame but isReadyForMoreData will still continue to return false ; causing an infinite loop and high CPU usage. We should only satisfy the request to requestMediaDataWhenReady when AudioVideoRendererRemote::isReadyForMoreData() is returning true.
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Radar WebKit Bug Importer
Comment 1 2025-11-20 22:08:11 PST
<rdar://problem/165187226>
Jean-Yves Avenard [:jya]
Comment 2 2025-11-21 00:22:13 PST
Pull request: https://github.com/WebKit/WebKit/pull/54301
EWS
Comment 3 2025-11-21 03:38:07 PST
Committed 303386@main (3484e3687b3c): <https://commits.webkit.org/303386@main> Reviewed commits have been landed. Closing PR #54301 and removing active labels.
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