#!/bin/bash
# 01/14/11
# ./autopad_spaces.sh /full/path/to/media
# make sure you are "priveleged" enough to write symlinks in the directory from which you are # running this script

##########-=DEFAULTS=-#########
channel="kingdomheartsforever"
username=""
password=""

x264Preset=$2
if [ "$x264Preset" = "" ]; then
  x264Preset="faster"
fi
################################

#########-=Functions and Declarations=-##########
declare -a playlist
entry="0"

function listGen
{
  echo "generating playlist"
  ls -1 "$moviePath" | grep -i -e "\.avi$" -e "\.mkv$" -e "\.mpeg$" -e "\.mpg$" -e "\.mov$" > playlist.txt
}

function listRefresh
{
  while read lolname; do
    playlist[$entry]=$lolname
#    echo $entry": "${playlist[$entry]}
    let entry++
  done < playlist.txt
  echo "Number of files in playlist: ${#playlist[@]}"
#  echo ${playlist[@]}
  exit
}
#################################################

##########-=Input File Analysis=-###########
moviePath=$1

if [ -f "$moviePath" ]; then
  echo "Reading moviePath as ${moviePath##*.} file"
  if [ ${moviePath##*.} = "txt" ]; then
    echo "loading txt file as playlist"
    cat $moviePath > playlist.txt
  else
  echo $moviePath > playlist.txt
  fi
elif [ -d "$moviePath" ]; then
  echo "Reading moviePath as directory"
  listGen
else
  echo "$moviePath not identified as either file or directory"
  exit
fi
listRefresh
############################################



ffprobe -show_streams "$moviePath" > /tmp/probetmp.txt

width=$(cat /tmp/probetmp.txt | grep width | sed 's/width=//')
height=$(cat /tmp/probetmp.txt | grep height | sed 's/height=//')

echo "width: $width"
echo "height: $height"

if [ "$(echo "scale=0; (1000*$width*9)/($height*16)" | bc)" -ge "1000" ];then
  mode="widescreen"
  scaleFactor=$(echo "scale=0; $width*9/16" | bc)
  padTotal=$(echo "scale=0; $scaleFactor - $height" | bc)
  padPixel=$(echo "scale=0; $padTotal/2" | bc)
  #padString=" -padtop "$padPixel" -padbottom "$padPixel
  padString=" -vf pad="$width":"$scaleFactor":0:"$padPixel":black"
else
  if [ "$(echo "scale=0; $width*3/4" | bc)" -gt "$height" ]; then
    mode="letterbox"
    scaleFactor=$(echo "scale=0; $width*3/4" | bc)
    padTotal=$(echo "scale=0; $scaleFactor - $height" | bc)
    padPixel=$(echo "scale=0; $padTotal/2" | bc)
    #padString=" -padtop "$padPixel" -padbottom "$padPixel
    padString=" -vf pad="$width":"$scaleFactor":0:"$padPixel":black"
  else
    mode="tallscreen"
    scaleFactor=$(echo "scale=0; $height*4/3" | bc)
    padTotal=$(echo "scale=0; $scaleFactor - $width" | bc)
    padPixel=$(echo "scale=0; $padTotal/2" | bc)
    #padString="-padleft "$padPixel" -padright "$padPixel
    padString=" -vf pad="$scaleFactor":"$height":"$padPixel":0:black"
  fi
fi

echo "scaleFactor: $scaleFactor"
echo "mode: $mode"
echo "Widescreen test number: $(echo "scale=0; (1000*$width*9)/($height*16)" | bc)"
echo "padTotal: $padTotal"
echo "padPixel: $padPixel"
echo "x264Preset: $x264Preset"

#ffmpeg -i "$moviePath" -re -acodec libmp3lame -ac copy -ar 44100 -vcodec libx264 -vpre $x264Preset -f flv $padString "rtmp://fme.mogulus.com/mogulus/$channel/username=$username/password=$password/isAutoLive=true/autoVOD=true/autoRecord=false app=mogulus/$channel/username=$username/password=$password/isAutoLive=true/autoRecord=false tcurl=rtmp://fme.mogulus.com/mogulus/$channel/username=$username/password=$password/isAutolive=true/autoRecord=false swfUrl=rtmp://publish.livestream.com/mogulus/$channel/username=$username/password=$password/isAutolive=true/autoRecord=false flashver=FME/2.5\20(compatible;\20FMSc/0.9) live=true"
#ffmpeg -i "$moviePath" -re -acodec libmp3lame -ar 44100 -ac 2 -vcodec libx264 -vpre $x264Preset -f flv $padString -threads 0 "rtmp://fme.mogulus.com/mogulus/$channel/username=$username/password=$password/isAutoLive=true/autoVOD=true/autoRecord=false app=mogulus/$channel/username=$username/password=$password/isAutoLive=true/autoRecord=false tcurl=rtmp://fme.mogulus.com/mogulus/$channel/username=$username/password=$password/isAutolive=true/autoRecord=false swfUrl=rtmp://publish.livestream.com/mogulus/$channel/username=$username/password=$password/isAutolive=true/autoRecord=false flashver=FME/2.5\20(compatible;\20FMSc/0.9) live=true"