#!/bin/sh

# runvdr: Loads the DVB driver and runs VDR
#
# If VDR exits abnormally, the driver will be reloaded
# and VDR restarted.
#
# In order to actually use this script you need to implement
# the functions DriverLoaded(), LoadDriver() and UnloadDriver()
# and maybe adjust the VDRPRG and VDRCMD to your particular
# requirements.
#
# Since this script loads the DVB driver, it must be started
# as user 'root'. Add the option "-u username" to run VDR
# under the given user name.
#
# Any command line parameters will be passed on to the
# actual 'vdr' program.
#
# See the main source file 'vdr.c' for copyright information and
# how to reach the author.
#
# $Id: runvdr.template 3.1 2015/02/05 10:28:53 kls Exp $

VDRPRG="./vdr"

VDROPTIONS="-w 60"
# For other options see manpage vdr.1

VDRPLUGINS=""
# You will need to select your output device plugin if you want
# to use VDR to watch video. For instance, for a "Full Featured"
# SD DVB card that would be
# VDRPLUGINS="-P dvbsddevice"
# For a "Full Featured" HD DVB card you could use
# VDRPLUGINS="-P dvbhddevice"
# There are also other output device plugins available, see
# http://www.vdr-wiki.de/wiki/index.php/Plugins.

VDRCMD="$VDRPRG $VDROPTIONS $VDRPLUGINS $*"

KILL="/usr/bin/killall -q -TERM"

# Detect whether the DVB driver is already loaded
# and return 0 if it *is* loaded, 1 if not:
DriverLoaded()
{
  return 1
}

# Load all DVB driver modules needed for your hardware:
LoadDriver()
{
  return 0
}

# Unload all DVB driver modules loaded in LoadDriver():
UnloadDriver()
{
  return 0
}

# Load driver if it hasn't been loaded already:
if ! DriverLoaded; then
   LoadDriver
   fi

while (true) do
      eval "$VDRCMD"
      if test $? -eq 0 -o $? -eq 2; then exit; fi
      echo "`date` reloading DVB driver"
      $KILL $VDRPRG
      sleep 10
      UnloadDriver
      LoadDriver
      echo "`date` restarting VDR"
      done
