#!/bin/sh # # A simple RTP receiver with retransmission # # receives H264 encoded RTP video on port 5000, RTCP is received on port 5001. # the receiver RTCP reports are sent to port 5005 # # .-------. .----------. .---------. .-------. .-----------. # RTP |udpsrc | | rtpbin | |h264depay| |h264dec| |xvimagesink| # port=5000 | src->recv_rtp recv_rtp->sink src->sink src->sink | # '-------' | | '---------' '-------' '-----------' # | | # | | .-------. # | | |udpsink| RTCP # | send_rtcp->sink | port=5005 # .-------. | | '-------' sync=false # RTCP |udpsrc | | | async=false # port=5001 | src->recv_rtcp | # '-------' '----------' # the caps of the sender RTP stream. This is usually negotiated out of band with # SDP or RTSP. normally these caps will also include SPS and PPS but we don't # have a mechanism to get this from the sender with a -launch line. VIDEO_CAPS="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264" VIDEO_DEC="rtph264depay ! avdec_h264" VIDEO_SINK="videoconvert ! autovideosink" # the destination machine to send RTCP to. This is the address of the sender and # is used to send back the RTCP reports of this receiver. If the data is sent # from another machine, change this address. DEST=127.0.0.1 LATENCY=200 gst-launch-1.0 -v rtpbin name=rtpbin latency=$LATENCY do-retransmission=1 \ udpsrc caps=$VIDEO_CAPS port=5000 ! rtpbin.recv_rtp_sink_0 \ rtpbin. ! $VIDEO_DEC ! $VIDEO_SINK \ udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \ rtpbin.send_rtcp_src_0 ! udpsink port=5005 host=$DEST sync=false async=false