RTP Streams out of sync
2 rtp streams sent from a machine and received by the same machine are not in sync. Run the 3 command lines below on the same machines to see the issue. The only difference in the 2 command lines is that one has a speed-preset of 4 and the other 5. Due to the rtcp-sync-send-time=false both streams should be in sync. This is obviously causing us fairly major problems. Thanks very much for all your time and help.
Stream1
gst-launch-1.0 rtpbin name=rtpbin buffer-mode=4 rtp-profile=avpf rtcp-sync-send-time=FALSE \
videotestsrc is-live=true ! video/x-raw,width=1280,height=720,framerate=20/1 ! queue \
! clockoverlay ! videoconvert ! x264enc speed-preset=5 ! h264parse \
! video/x-h264,profile=main,width=1280,height=720,framerate=20/1 ! queue ! rtph264pay \
! rtpbin.send_rtp_sink_0 \
rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=10000 \
rtpbin.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=10001 sync=false async=false \
udpsrc port=10002 ! rtpbin.recv_rtcp_sink_0
Stream2
gst-launch-1.0 rtpbin name=rtpbin buffer-mode=4 rtp-profile=avpf rtcp-sync-send-time=FALSE \
videotestsrc is-live=true ! video/x-raw,width=1280,height=720,framerate=20/1 ! queue \
! clockoverlay ! videoconvert ! x264enc speed-preset=4 ! h264parse \
! video/x-h264,profile=main,width=1280,height=720,framerate=20/1 ! queue ! rtph264pay \
! rtpbin.send_rtp_sink_0 \
rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=10003 \
rtpbin.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=10004 sync=false async=false \
udpsrc port=10005 ! rtpbin.recv_rtcp_sink_0
Receiver
gst-launch-1.0 rtpbin name=rtpbin2 buffer-mode=4 ntp-sync=true latency=400 rtp-profile=avpf \
compositor name=convert sink_0::xpos=0 sink_0::ypos=0 \
sink_0::zorder=0 sink_1::xpos=640 sink_1::ypos=360 sink_1::zorder=1 \
! videoscale ! video/x-raw,width=1280,height=720 \
! videoconvert ! queue max-size-buffers=0 max-size-bytes=0 max-size-time=0 ! autovideosink \
udpsrc caps="application/x-rtp,media=(string)video, clock-rate=(int)90000, \
encoding-name=(string)H264, payload=96" port=10000 \
! rtpbin2.recv_rtp_sink_0 rtpbin2. ! rtph264depay \
! queue max-size-buffers=0 max-size-bytes=0 max-size-time=0 \
! avdec_h264 ! video/x-raw,width=1280,height=720,framerate=20/1 ! videoconvert ! convert.sink_0 \
udpsrc port=10001 ! rtpbin2.recv_rtcp_sink_0 \
rtpbin2.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=10002 sync=false async=false\
udpsrc caps="application/x-rtp,media=(string)video, clock-rate=(int)90000,\
encoding-name=(string)H264, payload=96" port=10003 \
! rtpbin2.recv_rtp_sink_1 \
rtpbin2. ! rtph264depay ! queue max-size-buffers=0 max-size-bytes=0 max-size-time=0 \
! avdec_h264 ! video/x-raw,width=1280,height=720,framerate=20/1 ! videoconvert ! convert.sink_1 \
udpsrc port=10004 ! rtpbin2.recv_rtcp_sink_1 \
rtpbin2.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=10005 sync=false async=false