#!/bin/bash
#
# IMPORTANT >>>>>You need to get port, ip and feed_id right<<<<<
port=9999
ip=127.0.0.1


if [ $# -lt 1 ] ; then
  echo "Missing argument\nUsage $0 <feed id> [<audio feed id> [<input file>]"
  echo "Setting audio feed to 0 disables audio"
  exit 1
fi

# Set video feed and audio feed id
feed_id=$1
if [ $# -lt 2 ] ; then
  audio_feed_id=0
else
  audio_feed_id=$2
fi

if [ $# -gt 2 ] ; then
  if [ -s $3 ] ; then
    source=$3
  else
    echo "Can no read file $3"
    exit 1
  fi
else
  if [ -f $SM/test/big_buck_bunny_720p_H264_AAC_25fps_3400K.MP4 ] ; then
    echo "cached"
    #    source=$SM/test/big_buck_bunny_720p_H264_AAC_25fps_3400K.MP4
  else
    if [ -f $SM/test/LES_TDS_launch.mp4 ] ; then
      source=$SM/test/LES_TDS_launch.mp4
    else
      echo 'Could not find any video test file.'
      exit 1
    fi
  fi
fi

# Check for SM variable and the snowmix and gstreamer settings
if [ X$SM = X -o ! -f $SM/scripts/gstreamer-settings -o ! -f $SM/scripts/snowmix-settings ] ; then
  echo "You need to se the environment variable SM to the base of the Snowmix directory"
  exit 1
fi

# Load the Snowmix and GStreamer settings
echo A
. $SM/scripts/gstreamer-settings
echo B
. $SM/scripts/snowmix-settings
echo C
# This will set
# a) feed_rate
# b) feed_channels
# c) feed_control_pipe
# d) feed_width
# e) feed_height
# f) ctrsocket
# g) system_width
# h) system_height
# i) ratefraction
# j) snowmix
# k) channels
# l) rate


if [ X$feed_control_pipe = X -o X$system_width = X -o X$system_height = X ] ; then
  echo Failed to get control pipe or width or height from running snowmix
  exit 1
fi

#echo "Snowmix Geometry        : $system_width x $system_height"
#echo "Snowmix control socket  : $ctrsocket"
echo "Video feed geometry     : $feed_width x $feed_height"
echo "Video control socket    : $feed_control_pipe"
echo "Video and audio feed id : $feed_id $audio_feed_id"

if [ X$feed_rate = X -o X$feed_channels = X ] ; then
  echo Failed to get rate or channels from running snowmix
  echo Disabling audio
else
  echo "Audio rate and channels : $feed_rate $feed_channels"
fi

SRC="filesrc location=\"$2\" ! $decodebin name=decoder ! decodebin ! $VIDEOCONVERT "
SHMSIZE='shm-size='`echo "$feed_width * $feed_height * 4 * 16"|bc`
SHMOPTION="wait-for-connection=1 sync=true"
SHMSINK1="shmsink socket-path=$feed_control_pipe $SHMSIZE $SHMOPTION"
#SCALE="$VIDEOCONVERT ! videoscale ! $VIDEOCONVERT"
SCALE="videoscale ! $VIDEOCONVERT"
AUDIOFORMAT="$AUDIOS16LE"', rate=(int)'$feed_rate', channels=(int)'$feed_channels
VIDEOFORMAT=$VIDEOBGRA', width=(int)'$feed_width', height=(int)'$feed_height', framerate=(fraction)'$ratefraction
VIDEOFORMAT=$VIDEOBGRA', width=(int)'$feed_width', height=(int)'$feed_height


while true ; do
    # Remove the named pipe if it exist
    rm -f $feed_control_pipe
    snowmix=`ps c |cut -c28-34 | grep snowmix | head -1`
snowmix=snowmix
    if [ X$snowmix != X ] ; then
      if [ X$feed_rate != X -a X$feed_channels != X ] ; then
	  echo $gstlaunch -q $SRC ! \
	  videorate ! $SCALE ! $VIDEOFORMAT ! $SHMSINK1 decoder. \
	  ! queue ! audioconvert ! audioresample ! $AUDIOFORMAT ! fdsink fd=1 sync=true
        (
	  echo 'audio feed ctr isaudio '$audio_feed_id
	  $gstlaunch -v $SRC ! \
	  videorate ! $SCALE ! $VIDEOFORMAT ! $SHMSINK1 decoder. \
	  ! queue ! audioconvert ! audioresample ! $AUDIOFORMAT ! fdsink fd=3 sync=true 3>&1 1>&2
        ) | nc 127.0.0.1 $port
      else
	  echo $gstlaunch -q $SRC ! \
		$SCALE		! \
		$VIDEOFORMAT	! \
		$SHMSINK1 
	  $gstlaunch -q $SRC ! \
		$SCALE		! \
		$VIDEOFORMAT	! \
		$SHMSINK1 
      fi
    else
      echo Snowmix is not running. Quitting $0
      exit 1
    fi
    sleep 2
done
exit