[Bug 771383] rtprtxreceive: Sample pipeline uses obsolete rtx-payload-type parameter

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=771383

--- Comment #2 from Marcin Lewandowski <marcin at saepia.net> ---
I was trying to figure out proper pipelines but I got stuck with

gst-launch-1.0 -v -m rtpsession name=rtpsession \
        audiotestsrc ! audioconvert ! audioresample ! opusenc ! rtpopuspay !
rtprtxsend payload-type-map=map,96=97 ! \
            identity drop-probability=0.1 ! rtpsession.send_rtp_sink \
            rtpsession.send_rtp_src ! udpsink host="127.0.0.1" port=5000 \
        udpsrc port=5001 ! rtpsession.recv_rtcp_sink \
        rtpsession.send_rtcp_src ! udpsink host="127.0.0.1" port=5002
sync=false async=false



gst-launch-1.0 -v -m rtpsession name=rtpsession \
        udpsrc port=5000 caps="application/x-rtp, media=(string)audio,
clock-rate=(int)48000, encoding-name=(string)OPUS, payload=(int)96" ! \
            rtpsession.recv_rtp_sink \
            rtpsession.recv_rtp_src ! rtprtxreceive payload-type-map=map,96=97
! rtpjitterbuffer do-retransmission=true ! rtpopusdepay ! \
            opusdec ! audioconvert ! audioresample ! autoaudiosink \
        rtpsession.send_rtcp_src ! udpsink host="127.0.0.1" port=5001
sync=false async=false \
        udpsrc port=5002 ! rtpsession.recv_rtcp_sink



Still getting drops. Seems that rtpsession is not sending NACKs (such info is
shown in GST_DEBUG=rtpsession:5 log). Any hints?

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