rtpbin limit number of retransmissions

[andis]

Hi all, 

is there a way to limit the number of retransmissions requests of the
rtpbin, also after which time a retransmission request is sent? Usually, I
am ending up with negative packetslost, which is a result of duplicate
packets that are received, as indicated here: 
https://github.com/GStreamer/gst-plugins-good/blob/master/gst/rtpmanager/rtpsource.c 

With this negative packet loss, it is hard to determine what is the number
packets that are lost for good. Here is a sample statistics output by the
rtpbin: 
latency = 175ms, loss-probability = 0.5%
rtprtxqueue: requests = 1007, fulfilled-requests = 955
rtpbin stats: application/x-rtp-source-stats, ssrc=(uint)411292676,
internal=(boolean)false, validated=(boolean)true,
received-bye=(boolean)false, is-csrc=(boolean)false,
is-sender=(boolean)true, seqnum-base=(int)-1, clock-rate=(int)-1,
rtp-from=(string)127.0.0.1:36533, rtcp-from=(string)127.0.0.1:48993,
octets-sent=(guint64)0, packets-sent=(guint64)0,
octets-received=(guint64)17246025, packets-received=(guint64)30067,
bitrate=(guint64)3602896, packets-lost=(int)-766, jitter=(uint)0,
sent-pli-count=(uint)0, recv-pli-count=(uint)0, sent-fir-count=(uint)0,
recv-fir-count=(uint)0, sent-nack-count=(uint)257, recv-nack-count=(uint)0,
have-sr=(boolean)true, sr-ntptime=(guint64)16273342994088588482,
sr-rtptime=(uint)3899284162, sr-octet-count=(uint)15982235,
sr-packet-count=(uint)27872, sent-rb=(boolean)true,
sent-rb-fractionlost=(uint)0, sent-rb-packetslost=(int)-765,
sent-rb-exthighestseq=(uint)36600, sent-rb-jitter=(uint)0,
sent-rb-lsr=(uint)2268837565, sent-rb-dlsr=(uint)162432,
have-rb=(boolean)false, rb-fractionlost=(uint)0, rb-packetslost=(int)0,
rb-exthighestseq=(uint)0, rb-jitter=(uint)0, rb-lsr=(uint)0,
rb-dlsr=(uint)0, rb-round-trip=(uint)0;

The documentation states that rtpbin uses the rtpjitterbuffer, which has
these settings, but I do not know how to access and set them? 

Thanks, 
Andi

 



--
Sent from: http://gstreamer-devel.966125.n4.nabble.com/