[Webkit-unassigned] [Bug 195867] New: [MSE][GStreamer] Don't construct segments on PlaybackPipeline::flush

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195867

            Bug ID: 195867
           Summary: [MSE][GStreamer] Don't construct segments on
                    PlaybackPipeline::flush
           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

The previous approach did not really work for flushes on only one
branch, as setting reset-time in FLUSH_STOP affects the running time
of the entire pipeline, causing timing issues in the other branch.

Since it's preferable not to interfere with the other branch if
possible, setting reset-time to FALSE fixes that problem.

Also, it's not necessary to fabricate a segment. Since we are not
seeking, only the base needs to be adjusted, and gstbasesrc already
handles this correctly by default.

This fixes an audio/video synchronization bug in YT when some
automatic quality changes occur.

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