Bash script to start RTSP recording

start_cam1.sh

#!/bin/bash

VOPATH=/media/data/motion  # video output directory
MPATH=/home/pi/motion  # motion log directory
FFMPEG=/usr/local/bin/ffmpeg  # path to ffmpeg
CAM=1

pidfile=$MPATH/cam$CAM.pid
if [ ! -f $pidfile ]; then
  echo "PID file not found."
else
  echo "PID file exists, killing stale process."
  read pid < $pidfile
  echo "Sending SIGINT to process $pid."
  kill -INT $pid
  echo "Removing PID file $pidfile."
  rm $pidfile
fi
filename=$VOPATH/$(date +%F_%R)_$CAM.mp4
echo "Saving to $filename..."
# $FFMPEG -rtsp_transport tcp -i rtsp://192.168.0.1:554/user=user_password=password_channel=1_stream=0.sdp -c copy $filename &
openRTSP -b 250000 -4 rtsp://192.168.0.1:554/user=user_password=password_channel=1_stream=0.sdp >$filename &
pid=$!
echo "Started recording process with PID $pid..."
echo $pid > $pidfile