OMXPlayer auto start script

rpiautoplayer.sh

#!/bin/bash

set -e

READLINK=$(type -p greadlink readlink | head -1)
if [ -z "${READLINK}" ]; then
  echo "[ERROR] Connot find readlink" >& 2
  exit 1
fi
PLAYLIST_PATH="/media/playlist.txt"
if [ ! -f "${PLAYLIST_PATH}" ]; then
  echo "[ERROR] Connot find playlist.txt" >& 2
  exit 1
fi
CONTROL_PATH="/media/control.txt"
PLAYER_CMD="/usr/bin/omxplayer --blank"

function stop() {
  reason="${1}"
  run=false
  if [[ ${player_pid} -gt 0 ]]; then
    kill ${player_pid}
    wait ${player_pid}
  fi
  echo "Stop movie play. reason: ${reason}."
  run=false
  exit 0
}
trap 'stop "signal recieved"' TERM

run=true; while ${run}
do
  while read movie
  do
    if [ -f ${CONTROL_PATH} ]; then
      cmd=$(head -1 ${CONTROL_PATH} | tr -d "[:blank:]" | tr '[a-z]' '[A-Z]')
      echo "$(date): command recieved" > ${CONTROL_PATH}
      case ${cmd} in
        "STOP" )
          stop '[stop] command recieved'
          break
          ;;
      esac
    fi
    movie_path="$(dirname $(${READLINK} -f "${PLAYLIST_PATH}"))/${movie}"
    if [ -f "${movie_path}" ]; then
      ${PLAYER_CMD} "${movie_path}" &
      player_pid=$!
      wait
      unset player_pid
    fi
  done < ${PLAYLIST_PATH}
done