VMS2 + xwax

controller.sh

#!/bin/dash
[ "$TRACE" ] && set -x

DRIVER="alsa"
XWAX_OPTS="-k -q 40 -g 800x480 --no-decor"
LIBRARY_FOLDER="/media"

onexit() {
  echo "SIGINT received"
  echo "sending SIGTERM to all processes"
  kill $pid
  sleep 1
}

xwaxrun() {
	xwax $XWAX_OPTS $@ -l $LIBRARY_FOLDER &
	pid="$!"
	echo "XWAX PID $pid"
	echo
}

if [ "$DRIVER" = "jack" ]; then
	## Start Jackd2
	jack_control start
	sudo schedtool -R -p 20 `pidof jackdbus`
	jack_control eps realtime true
	jack_control ds alsa
	jack_control dps device hw:Device
	jack_control dps rate 48000
	jack_control dps nperiods 2
	jack_control dps period 64

	## Start XWAX

	xwaxrun "-j deck1 -j deck2"

	sleep 2

	# connect jack ports
	jack_connect system:capture_1 xwax:deck1_timecode_L
	jack_connect system:capture_2 xwax:deck1_timecode_R
	jack_connect system:playback_1 xwax:deck1_playback_L
	jack_connect system:playback_2 xwax:deck1_playback_R

	jack_connect system:capture_3 xwax:deck2_timecode_L
	jack_connect system:capture_4 xwax:deck2_timecode_R
	jack_connect system:playback_3 xwax:deck2_playback_L
	jack_connect system:playback_4 xwax:deck2_playback_R
else
	xwaxrun "-a vms2_deck1 -a vms2_deck2"

fi

trap onexit INT TERM
wait $pid

vms2.asound.conf

pcm.vms2_capture {
	type dsnoop
	ipc_key 1647
	slave {
		pcm "hw:Device"
		period_size 8
		buffer_size 65536
		rate 44100
		channels 4
	}
}

pcm.vms2_playback {
	type dmix
	ipc_key 1647
	slave {
		pcm "hw:Device"
		period_size 8
		buffer_size 65536
		rate 44100
		channels 4
	}
}

pcm.vms2_duplex {
	type asym
	playback.pcm vms2_playback
	capture.pcm vms2_capture
}

pcm.vms2_deck1 {
	type plug
	ttable.0.0 1.0
	ttable.1.1 1.0
	slave.pcm vms2_duplex
}

pcm.vms2_deck2 {
	type plug
	ttable.0.2 1.0
	ttable.1.3 1.0
	slave.pcm vms2_duplex
}