[Webkit-unassigned] [Bug 143827] New: [GStreamer] improve video rendering stats

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=143827

            Bug ID: 143827
           Summary: [GStreamer] improve video rendering stats
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pnormand at igalia.com
                CC: slomo at coaxion.net

Since we know exactly which samples are rendered by the player we could easily gather statistics about dropped frames and rendered frames. Right now we depend on the fpsdisplaysink for that...

Instead we could:

1) before replacing the sample stored in player, check if it was rendered by fetching some bool variable from its qdata
2) when rendering set the bool variable in qdata to TRUE

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