[Bug 780867] New: rtpsession: send BYE after timeout only for internal sources that were the suggested_ssrc in the past

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=780867

            Bug ID: 780867
           Summary: rtpsession: send BYE after timeout only for internal
                    sources that were the suggested_ssrc in the past
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: gkiagia at tolabaki.gr
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 349172
  --> https://bugzilla.gnome.org/attachment.cgi?id=349172&action=edit
rtpsession: send BYE after timeout only for internal sources that were the
suggested_ssrc in the past

There is a logic in rtpsession to send BYE for internal sources that are
inactive for a long time. This is basically done as an optimization, to remove
stale sources that have been created in the past for internal reasons but are
no longer in use (see bug 720440).

However, previously, this logic would also affect retransmission sources. Rtx
sources *can* be inactive for some time, for a very legitimate reason (no
packet loss), but we shouldn't send BYE for them because they may still be
used. They should stay around as receivers (as the RFC states for all inactive
senders).

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