[Bug 674626] New: [rtpsession] High CPU usage in rtcp thread when setting RR bandwidth = 0

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=674626
  GStreamer | gst-plugins-good | 0.10.31

           Summary: [rtpsession] High CPU usage in rtcp thread when
                    setting RR bandwidth = 0
    Classification: Platform
           Product: GStreamer
           Version: 0.10.31
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: daniela.muzzu at selexelsag.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


If receiver report bandwidth is set to 0 according to SDP configuration (see
RFC 3556), it often happens that RTCP thread doesn't exit as expected, but
computes spurious next_rtcp_check_time values: this generally leads the
gst_clock_id_wait call to return immediately with GST_CLOCK_EARLY and the RTCP
thread to consume a lot of CPU time.

This issue happens only if the RR_bw=0 setting is performed after the RTCP
thread has been started, otherwise it's handled correctly: this behaviour has
been introduced with release 0.10.31, since in release 0.10.30 the RTCP thread
was never started until stream configuration completion (in gstrtspsrc.c
0.10.31 the state transition READY to PLAYING has been anticipated).

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