Operation Green Blood

Question

this is in extension of thread
http://forum.java.sun.com/thread.jsp?forum=31&thread=303696
thanks for flag -Xmx128
but here is the code
PLEASE HELP IN MAKING THIS "A everytime working code.."
OPERAION GREEN BLOOD
This source is made by ballubadshah
the code changes supported audio  file into reverse direction
well the code is complete but not stable.
The comment in between the code gives the details for the mission
see description and mission below
import java.awt.*;
import java.io.*;
import java.net.*;
import javax.sound.sampled.*;
public class backmasking
  public static void main(String args[])
    if (args.length == 0)
      System.out.println("Usage : java backmasing audiofilename  ");
      System.out.println("---------------------------------------");
      System.out.println(" please provide satan a audio file     ");
      System.exit(0);
      System.out.println("-------Welcome to the world of Satan------");
    final int bufSize = 16384;// some buffer
    File file1 = new File(args[0]);// here is the input wavfile
    AudioInputStream ais1 = null;// a ais init
    try
    ais1 = AudioSystem.getAudioInputStream(file1);
    }catch (UnsupportedAudioFileException e)
    {    System.out.println("File Format not supported. \nTOO BAD");  System.exit(0); }
    catch  (IOException ee)
    {    System.out.println("File "+file1.getName()+ " not found.\nTOO BAD");System.exit(0);}
    AudioFileFormat.Type aff = null;
    try
    aff= AudioSystem.getAudioFileFormat(file1).getType();
    catch(UnsupportedAudioFileException uafe)
    { System.out.println("Some error has occured in file format\nTOO BAD");System.exit(0);}
    catch(IOException uafe)
    { System.out.println("Input / output error");System.exit(0);}
    // file format
    System.out.println("Satan is processing your file ...");
    System.out.println("Satan says ...");
    System.out.println("Audio file type = "+ aff);
    System.out.println("AudioInputStream = "+ais1+" GOOD");
    AudioFormat af1 = ais1.getFormat();      // this af is used  later too
    System.out.println("AudioFormat = "+af1+" GOOD");
    int frameSizeInBytes = af1.getFrameSize();
    System.out.println("FrameSize in Bytes = "+frameSizeInBytes);
    long leng = file1.length();// leng is file length
    System.out.println("FileLength = "+leng);
    AudioFileFormat.Type aff[] = AudioSystem.getAudioFileTypes(ais1);// file format
    for (int i = (aff.length-1) ;i >= 0 ; i--)
      System.out.println(aff);
//reversing process
int stop = (int)leng-1;
// System.out.println("I am Here");
long framelength = ais1.getFrameLength();
System.out.println("Frame length = "+framelength);
---description...
before this comment the data from a wav file is taken.
after this...
bytes are fetched from audioinputstream ais1 of that file
these bytes are rb[].
then these bytes rb are send to a file some temp file...
this is done bcos of lack of memory available...
then later after part ONE
these rb again taken from tempfile are send to audioutputstream
for getting a reverse of actual wav file...
--- mission
i want to have reverse of audio wav file
with support for large size files
cos my one does not support large file size
nor i think it is the best...
i want it to be working for every file
so edit this code and send
else give a appropriate hint...
byte rb[] = null ;
// try
rb = new byte[stop];
// catch (IOException ee)
// {System.out.println("The file size is too big./nTOO BAD");System.exit(0);}
//i dont want to get the above error ee in code for any file size
//means if stop is bigger than RAM then outofmemmoryerror will occur
//this is very cheap but ...
//try giveing any other alternative too...
System.out.println("Reading file "+file1.getName());
try
stop=ais1.read(rb);// all file bytes are read here into rb
}catch (IOException ioe){System.out.println("some good error");}
System.out.println("Byte rb length = "+rb.length);
System.out.print("Phase 5 complete / ");
System.out.println("Entering phase 6");
System.out.println("Stop = "+stop);
File file2 = new File("rv"+file1.getName()+".pramod");
System.out.println("Reading Complete...");
FileOutputStream fos2 = null;
try
fos2= new FileOutputStream(file2);
System.out.println("Writing reverse temp data to file "+file2.getName()+" takes time");
for(int l = 0 ;l < stop ;l++ )
fos2.write(rb[stop-l]);
}catch (FileNotFoundException e){System.out.println("File not found...");}
catch(IOException eeeee) {
System.out.println("File cannot be written some problem."); }
rb = null;
System.out.println("--------End of part ONE----------");
System.out.println(" Entering phase 666 ");
FileInputStream fis= null;
try
fis = new FileInputStream(file2);
}catch(FileNotFoundException ee){}
File filu= new File("rv"+file1.getName());
rb = new byte[stop];
try
// for(int l = 0 ;l < stop ;l++ )
fis.read(rb,0,rb.length);
}catch (FileNotFoundException e){System.out.println("File not found...2 time");}
catch(IOException eeeee) {
System.out.println("File cannot be written some problem. 2 time"); }
ByteArrayInputStream bais = new ByteArrayInputStream(rb);
// int frameSizeInBytes = af1.getFrameSize();
AudioInputStream audioInputStream = new AudioInputStream(bais, af1, rb.length / frameSizeInBytes);
try
AudioSystem.write(audioInputStream,aff, filu);
System.out.println("NEW REVERSE "+ aff +" FILE -- "+filu.getName()+" -- CREATED.");
System.out.println("BYE BYE from satan");
System.out.println("Well backmasking is famous because of satan.");
System.out.print("OPERATION GREEN BLOOD COMPLETE...");
catch(IOException eeeee)
System.out.println("File cannot be written some problem.");
System.exit(0);

Answer 1

And what about the other formats like au, aifc, aiff and snd?
The Java Sound API can handle these formats, so we should write methods that can handle that formats, too. Otherwise it won't be really platform-independent.
All formats are supported, because neither the order of the bytes is changed, nor the order of the samples. Only frames are reversed.
Okay, here is some code (Sometimes I think I'm stupid. I made a big mistake: processing the data in several chunks is really hard (or impossible) to implement, because the data from the end is needed at the same like the data at the begin. I'm sorry for that.)
import javax.sound.sampled.*;
import java.io.*;
public class ReverseFrames {
public static void main(String[] args){
  reverse(new File("c:/windows/media/chimes.wav"), new File("c:/temp/reversed.wav"));
public static void reverse(File myFile, File reversedFile){
   try{
   AudioInputStream ais = AudioSystem.getAudioInputStream(myFile);
   byte[] buffer = new byte[(int)reversedFile.length()];
   int read, totalRead = 0, framesize = ais.getFormat().getFrameSize();
   while((read = ais.read(buffer)) != -1){
    reverseBytes(buffer, read, framesize);
     totalRead += read;
   ais.close();
   ByteArrayInputStream bais = new ByteArrayInputStream(buffer);
   AudioInputStream audioOut = new AudioInputStream(bais, ais.getFormat(), totalRead/ais.getFormat().getFrameSize());
   AudioSystem.write(audioOut, AudioFileFormat.Type.WAVE, reversedFile);
  }catch(Exception e){
   e.printStackTrace();
public static void reverseBytes(byte[] array, int len, int framesize){
  byte temp;
  for(int i=0; i<len/2; i+=framesize){
   for(int j=0; j<framesize; j++){
    temp = array[i+j];
    array[i+j] = array[len-i-framesize+j];
    array[len-i-framesize+j] = temp;
}I tried it, it worked well. (I'm still angry with me about that thing with processing data in chunks. }:-( )