[Bug 758719] Rtp retransmission broken / examples not working

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=758719

George Kiagiadakis <gkiagia at tolabaki.gr> changed:

           What    |Removed                     |Added
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                 CC|                            |gkiagia at tolabaki.gr

--- Comment #17 from George Kiagiadakis <gkiagia at tolabaki.gr> ---
I have fixed the examples of rtprtxreceive (see bug 771383) to mention correct
property usage and to make them work.

Unfortunately I can confirm some NACKs being dropped occasionally. By studying
the algorithm, it looks like it is the intention of RFC 4585 to occasionally
drop some retransmission requests in order to regulate the bandwidth of the
RTCP stream. This can be circumvented by setting a higher bandwidth limit for
RTCP, which makes it send receiver reports more often and therefore less NACKs
are being lost. I am not sure if this is a bug.

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