[Webkit-unassigned] [Bug 215722] New: RTCRtpSynchronizationSource.rtpTimestamp is not populated

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215722

            Bug ID: 215722
           Summary: RTCRtpSynchronizationSource.rtpTimestamp is not
                    populated
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: juberti at google.com
                CC: youennf at gmail.com

As defined in https://developer.mozilla.org/en-US/docs/Web/API/RTCRtpContributingSource. You'll see that timestamp, source, and audioLevel are all filled in, but rtpTimestamp is not.

You can repro by doing RTPReceiver.getSynchronizationSources for any incoming RTP stream, where you'll get a result of the form {source: 4171861391, timestamp: 735867319}.

This prevents correlation of video frames with their RTP timestamps.

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