[Webkit-unassigned] [Bug 227864] New: [MSE] sequence mode is broken if GPU Process is enabled

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Jul 11 19:35:19 PDT 2021


            Bug ID: 227864
           Summary: [MSE] sequence mode is broken if GPU Process is
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jean-yves.avenard at apple.com

if sequence mode is explicitly set, or if generate timestamps flag is true (such as when using MSE with raw mpeg audio or aac) each time you call SourceBuffer.appendBuffer the timestampOffset will be amended.

However, if the GPU Process is enabled, then the value of the timestamp offset is only updated in the GPU Process. If we read the value in the web content process, this value will always be 0.

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