[Webkit-unassigned] [Bug 233528] New: [MSE] Fix erase range to prevent accidental deletion in files with changing durations

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=233528

            Bug ID: 233528
           Summary: [MSE] Fix erase range to prevent accidental deletion
                    in files with changing durations
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aboya at igalia.com
                CC: bugs-noreply at webkitgtk.org

In didReceiveSample(), eraseBeginTime was being set to
highestPresentationTimestamp minus a tolerance. The tolerance is not
needed since highestPresentationTimestamp is loaded from exact frame
timestamps, and can cause accidental frame erasure in situations where
there are frames with frames smaller than the tolerance, which is the
case for certain MP4 files.

Test: media/media-source/media-source-append-tiny-durations.html

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