#! /bin/bash

trap do_exit INT

PIDS=""
do_exit() {
	kill $PIDS >/dev/null 2>&1
	sleep 10
	kill -9 $PIDS >/dev/null 2>&1
	pkill -9 gst-launch-1.0
}

v4l2-ctl -d /dev/video0 --set-ctrl=power_line_frequency=1

# provide video stream
(
	while true; do
		gst-launch-1.0 -e rtpbin name=b rtp-profile=avpf uvch264src device=/dev/video0 name=src auto-start=true src.vidsrc ! video/x-raw,framerate=30/1,profile=high ! videoscale ! video/x-raw,width=1920,height=1080 ! videoconvert ! x264enc tune=zerolatency bitrate=7000 speed-preset=superfast key-int-max=15 ! rtph264pay ! rtpulpfecenc percentage=50 percentage-important=75 ! rtprtxqueue max-size-packets=1000 ! b.send_rtp_sink_0 b.send_rtp_src_0 ! udpsink host=terminal1 port=5001 udpsrc address=:: port=5002 ! b.recv_rtcp_sink_0 b.send_rtcp_src_0 ! udpsink host=terminal1 port=5003 sync=false async=false
		sleep 1
	done
) &
PIDS="$PIDS $!"

# send audio stream
(
	while true; do
		gst-launch-1.0 alsasrc device=plughw:2,0 ! audioconvert ! audioresample ! opusenc ! rtpopuspay !  udpsink host=terminal2 port=5003
		sleep 1
	done
) &
PIDS="$PIDS $!"

# receive audio stream
(
	while true; do
		gst-launch-1.0 udpsrc port=5002 caps="application/x-rtp" ! rtpjitterbuffer latency=20 do-lost=True ! rtpopusdepay ! opusdec plc=true !  alsasink  device=hw:1
		sleep 1
	done
) &
PIDS="$PIDS $!"

wait $PIDS