[Webkit-unassigned] [Bug 259397] New: [MSE] Fix removal of samples being replaced

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Jul 21 09:56:54 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=259397

            Bug ID: 259397
           Summary: [MSE] Fix removal of samples being replaced
           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: eocanha at igalia.com

During replacement of buffered range, SourceBuffer may fail to remove some samples if its PTS falls in "contiguousFrameTolerance" gap introduced in https://bugs.webkit.org/show_bug.cgi?id=190085.

The problem can be seen with this test https://emutavchi.github.io/tests/mse/mse_sample_replacement_test.html and instrumentation on WebKit side that logs the append number for each sample: https://github.com/emutavchi/WebKitForWayland/commit/8d272af173a4ba23a0922949a02d0c7f79339158

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