265274 2023-11-22 20:58:52 -0800 [MSE] MSE objects should be using thread-safe refcount 2023-11-25 06:54:28 -0800 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 264134 1 jean-yves.avenard jean-yves.avenard webkit-bug-importer oldest_to_newest 1994483 0 jean-yves.avenard 2023-11-22 20:58:52 -0800 With MSE in a Worker, the threading model of the MSE objects will be changing. Currently, all run in the main thread. As we progress bug 264134, the threading model will become: HTMLMediaElement, MediaPlayer, MediaPlayerPrivate run on the main thread (MediaPlayerPrivate run in the GPU process). MediaSource and SourceBuffer will run on either the main thread or in a worker. MediaSourcePrivate and SourceBufferPrivate will run in a dedicated WorkQueue (either in the content process or in the GPU Process). Currently, MediaSource (a MediaSourcePrivateClient) and SourceBuffer (a SourceBufferPrivateClient) are using non-thread safe refcounting and supports weakptr. MediaSourcePrivate and SourceBufferPrivate are using non-thread safe refcounting and supports weakptr. We want to make them use thread-safe refcounting and thread safe weakptr. 1994484 1 webkit-bug-importer 2023-11-22 20:59:15 -0800 <rdar://problem/118734205> 1994488 2 jean-yves.avenard 2023-11-22 21:24:18 -0800 Pull request: https://github.com/WebKit/WebKit/pull/20840 1994737 3 ews-feeder 2023-11-25 06:54:26 -0800 Committed 271111@main (3e109296984d): <https://commits.webkit.org/271111@main> Reviewed commits have been landed. Closing PR #20840 and removing active labels.