#! /bin/bash

# --------------------------------------------------------------------
#
#   Script converts wav or mp3 file to Asterisk compatible wav file
#   Version 0.2
#   Kolmisoft 2008
#   http://www.kolmisoft.com
#
#
#	2008.11.19  0.2	  which is removed and locations are hardcoded because 'which' is not accessible by apache user
#
# --------------------------------------------------------------------

#sox_path=`which sox`;
#lame_path=`which lame`;

sox_path="/usr/bin/sox"
lame_path="/usr/local/bin/lame"


wav_mp3()
{  _wav=`echo $1 | grep "\.wav";`
   _mp3=`echo $1 | grep "\.mp3";`

   if [ -n  "$_wav" ]; then return 0;
      elif [ -n "$_mp3" ]; then return 1;
      else return 2;
   fi
}
wav_mp3 $1; _first=$?
wav_mp3 $2; _second=$?

if [ "$_second" == 0 ]; 
   then
       
      #converting to wav
      if [ "$_first" == 1 ]; then  "$lame_path" --decode $1 /tmp/tmp.wav$$; fi
      if [ "$_first" == 0 ]; then mv $1 /tmp/tmp.wav$$; fi
	

      _SOX=`"$sox_path" -V /tmp/tmp.wav$$ -e 2> /tmp/_sox.txt$$ && cat /tmp/_sox.txt$$ | grep 8000*  && rm -rf /tmp/_sox.txt$$`
      echo "$_SOX"
      	if [ -n "$_SOX" ]; 
      		then "$sox_path" /tmp/tmp.wav$$ -r 8000 -c 1 -s -w $2            
        	else "$sox_path" /tmp/tmp.wav$$ -r 8000 -c 1 -s -w $2 resample -ql 	
	fi             

      rm -rf /tmp/tmp.wav$$
      
   else echo "The second argument was not a wav file"; exit 1;
fi
echo Finished;