#!/bin/bash
#
# DVB recordings are usually broken, so A/V sync will break during editing and/or
# recoding. This script tries to fix all that.  
#
# 1. Run ProjectX to split the mpeg transport stream into (fixed) elementary components.
# 2. Run mplex to multiplex the elementary stream to MPEG PS (DVD-style mpeg)
# 3. Remove all elementary streams to save space
# 4. Run avidemux to create index for each fixed file
# 5. When sure... remove original recording...

# Get the basename (=no extension) of the edited file
DVB_SUFFIX="vdr"
M2V="m2v"
MP2="mp2"
MPG="mpg"
BASENAME=$(basename $1 .$DVB_SUFFIX)
DIRNAME=$(dirname $1)

# After much hardship we finally have the full name of
# the file, but without the extension
FULLNAME=$DIRNAME"/"$BASENAME

# You may possibly want to use some basic checks at some points to see if something
# has gone wrong 
#if [ $? -ne 0 ]; then exit; fi

# Split to (fixed) elementary streams
java -jar /home/samuli/Desktop/ProjectX_Source_0.90.4/ProjectX.jar $FULLNAME.$DVB_SUFFIX

if [ $? -ne 0 ]; then
	echo "Something went wrong with sanitizing the recording!"
	exit 1
fi


# Multiplex the elementary streams back together
mplex -f 8 -o $FULLNAME.$MPG $FULLNAME.$M2V $FULLNAME.$MP2

# If all seemed to go well, remove the original recording
if [ $? -eq 0 ]; then
	echo "Removing original file $1"	
	rm -f $1
else
	echo "Something went wrong with multiplexing, not removing original recording!"
fi

# Remove old elementary streams
echo "Removing old elementary streams"
rm -f $FULLNAME.$M2V $FULLNAME.$MP2