source-720p-videobox-udp-as-cam1.sh

#!/bin/sh
confdir="`dirname "$0"`/../"
. $confdir/default-config.sh
if [ -f $confdir/config.sh ]; then
	. $confdir/config.sh
fi

# should come from config
URL=udp://227.0.0.2:9000


#tunables
#10sec timeout on reading, 8m buffer for reading
URLPARAMS='?timeout=10000000&buffer_size=81921024&fifo_size=178481'

# note the setdar and setsar, these are needed if for some reason your
# input is not exactly 1280x720 and rescaling it fucks up the aspect
# or pixel dimensions.

ffmpeg -y -nostdin \
	-i "${URL}${URLPARAMS}" \
	-ac 2 \
	-filter_complex "
		[0:v] scale=$WIDTH:$HEIGHT,fps=$FRAMERATE,setdar=16/9,setsar=1 [v] ;
		[0:a] aresample=$AUDIORATE [a]
	" \
	-map "[v]" -map "[a]" \
	-pix_fmt yuv420p \
	-c:v rawvideo \
	-c:a pcm_s16le \
	-f matroska \
	tcp://localhost:10000