зеркало из https://github.com/mozilla/gecko-dev.git
5a09d32a1e
Here, we calculate the recovery time from two different start points because that when GPU crashes, VideoDecoderChild::ActorDestory() is called, but VideoDecoderChild doesn't dispatch events to trigger decoder recreation immediately. Instead, it waits until a new VideoDecoderManager has been recreated [1], and then rejects all pending promises to MFR with a NS_ERROR_DOM_MEDIA_NEED_NEW_DECODER, which triggers playback pipeline recreation. These two probes help us to know the gap between "GPU crash" and "MFR is notified". We don't need to wait for VideoDecoderManager recreation if we're certain that we don't create remote video decoder anymore. And if the gap is large, it might be a significant optimization. [1] http://searchfox.org/mozilla-central/rev/51b3d67a5ec1758bd2fe7d7b6e75ad6b6b5da223/dom/media/ipc/VideoDecoderChild.cpp#124-145 MozReview-Commit-ID: DcI2CwWORxZ --HG-- extra : rebase_source : 2f69330b9721cd4d6895f93b3a3cbc740de54e8c |
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