Bash script for transcoding videos to AppleTV format to be used by an Alfred extension

Script.sh

#!/bin/bash
#transcode.sh
#By Don Southard aka @binaryghost
#
#[UPDATE 6/01/2011 08:01:15PM]
#Idea and initialcode for Alfred progress bar by Andreas Heiberg
#Completly rewritten code by Don Southard
#
#[UPDATE 6/02/2011 08:58:09PM]
#Support for queueing, added information about queue status and ETA'S and the move the old file to trash feature 
#by Andreas Heiberg
#[UPDATE 8/25/2011 08:56:00AM]
#Support for spaces in path names 
#by Owen Parrish

#Save the field seprator to restore later.  This will avoid problems later if path names have a space in them.
SAVEIFS=$IFS
IFS=$'\n'

#for every selected file transcode with handbrakeCLI and move the old file to the trash
for f in "$@"
do

	INPUT="$f"
	#Modified by Andreas Heiberg
	VIDEO=${INPUT%.*}
	LOG="/Users/owen/Library/Logs/HandbrakeCLI.log"
	LOG2="/Users/owen/Library/Logs/HandbrakeCLI_Converted.log"

	#Checks how many videos are waiting to be transcoded
	TOTALCOUNT=$#
	#Makes a varible that shows the current videos count. (This will later be used to say this is video 1 of 4 fx.)
	VIDEOCOUNT=$(($VIDEOCOUNT + 1))

	#Change this to path of your Alfred settings folder
	SETTINGSFOLDER=$(cd `dirname $0` && pwd)
	
	#Starts the conversion in the background with the settings seen below
	#Output for log code by Adreas Heiberg
	($SETTINGSFOLDER/HandBrakeCLI -i "$f" -o "$VIDEO".m4v --preset="AppleTV 2" 1> "$LOG") &

	#Read original discription and save it, so it can be restored at the end
	DESC=$(defaults read $SETTINGSFOLDER/info subtitle)

	#Run this loop until HandBrakeCLI is no longer running
	while [ "$(ps ax | grep -v grep | grep HandBrakeCLI)" ] 
	do
		#convert current Handbrake log file in LF format
		tr '\r' '\n' < $LOG > $LOG2 

		#Extracts percentage of last line
		PROCENTAGE=$(tail -1 $LOG2 | awk 'BEGIN { FS = " " } ; { print $6}')

		#Extracts ETA times from the las line
		ETA=$(tail -1 $LOG2 | awk 'BEGIN { FS = " " } ; { print $14}')

		#Write the current videos number in the queue and the the total number of queued videos, completion in percentage and ETA times from the last line to the description
		defaults write $SETTINGSFOLDER/info subtitle  "Conversion started: Video $VIDEOCOUNT of $TOTALCOUNT is $PROCENTAGE% completed - ETA ${ETA%)*}"
		sleep 5
	done

	#Return description to original setting
	defaults write $SETTINGSFOLDER/info subtitle "$DESC"

	#Moves the old file to the trash
	mv "$f" ~/.Trash/
	#Deletes the log files completely
	rm $LOG
	rm $LOG2

	#Update the trash through apple script
	osascript  <<-eof1
		tell application "Finder"
			update trash
	end tell
	eof1

done

#restore field seperator
IFS=$SAVEIFS

#play the Glass sound when done
afplay /System/Library/Sounds/Glass.aiff

#Setting up the growl notifications
echo "Your video has been transcoded to AppleTV format."