#!/bin/bash

LOCAL_IP="$(cat $(readlink -f $(dirname $(dirname $0)))/.ipaddr)"

/usr/bin/ffmpeg -v quiet -rtbufsize 100m -listen 1 \
  -f flv -i "rtmp://${LOCAL_IP}:$1/live/mystream" \
  -an -c:v copy -preset ultrafast -tune zerolatency \
  -f rtsp "rtsp://${LOCAL_IP}/$1" &

while true; do
  FAIL=0

  /usr/bin/ffprobe -v quiet "rtsp://${LOCAL_IP}/$1" || FAIL=1

  if [[ $FAIL -eq 0 ]]; then
    /usr/bin/systemd-notify WATCHDOG=1
  fi

  sleep $(( $WATCHDOG_USEC / 2 / 1000000 ))
done