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Thread: Error In WavFile.....

  1. #1
    Junior Member
    Join Date
    Mar 2012
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    Default Error In WavFile.....

    import java.io.*;
    import java.lang.Object;
    import java.io.File;
    import java.util.*;
    import javax.sound.sampled.*;

    public class lmn
    {
    public FileOutputStream newFile;
    public byte[] audioData;
    public byte[] totalFileData;
    Vector v;
    WavFile wavFile;
    public byte[] newData;

    public static void main(String[] args) throws IOException
    {
    int i;
    Vector v=new Vector();
    WavFile wavFile = WavFile.openWavFile(new File(args[0]));
    System.out.println("AUDIO FILE INTO BITS");
    new lmn();
    }
    public lmn()
    {
    encode1LSB();
    }


    public static byte[] intToByteArray(int i)
    {
    byte[] bt = new byte[4];
    bt[0] = (byte) (i & 0x00FF);
    bt[1] = (byte) ((i >> 8) & 0x000000FF);
    bt[2] = (byte) ((i >> 16) & 0x000000FF);
    bt[3] = (byte) ((i >> 24) & 0x000000FF);
    return bt;
    }


    // convert a short to a byte array
    public static byte[] shortToByteArray(short data)
    {
    return new byte[]{(byte)(data & 0xff),(byte)((data >>> 8) & 0xff)};
    }


    public static BitSet fromByte(byte b)
    {
    BitSet bits = new BitSet(8);
    for (int i = 0; i < 8; i++)
    {
    bits.set(i, (b & 1) == 1);
    b >>= 1;
    }
    return bits;
    }


    public static byte[] toByteArray(BitSet bits) {
    byte[] bytes = new byte[bits.length()/8+1];
    for (int i=0; i<bits.length(); i++) {
    if (bits.get(i)) {
    bytes[bytes.length-i/8-1] |= 1<<(i%8);
    }
    }
    return bytes;
    }








    public void encode1LSB()
    {
    System.out.println("encode()");

    try
    {
    System.out.println("writeWaveFile()");
    String temp = "C:\\Program Files\\Java\\jdk1.6.0_21\\bin\\Project.wav";
    newFile = new FileOutputStream(temp);
    //newFile.write(wavFile.getHeader());
    byte[] b = new byte[4];
    b = "RIFF".getBytes();
    newFile.write(b, 0, 4);
    newFile.write(intToByteArray((int)wavFile.getChunk Size()), 0, 4);
    b = "WAVE".getBytes();
    newFile.write(b, 0, 4);
    b = "fmt ".getBytes();
    newFile.write(b, 0, 4);
    newFile.write(intToByteArray((int)wavFile.getSubCh unkSize()), 0, 4);
    newFile.write(shortToByteArray((short)wavFile.getA udioFormat()), 0, 2);
    newFile.write(shortToByteArray((short)wavFile.getC hannels()), 0, 2);
    newFile.write(intToByteArray((int)wavFile.getSampl eRate()), 0, 4);
    newFile.write(intToByteArray((int)wavFile.getByteR ate()), 0, 4);
    newFile.write(shortToByteArray((short)wavFile.getB lockAlign()), 0, 2);
    newFile.write(shortToByteArray((short)wavFile.getB itsPerSample()), 0, 2);
    b = "data".getBytes();
    newFile.write(b, 0, 4);
    newFile.write(intToByteArray((int)wavFile.getDataC hunkSize()), 0, 4);
    //newFile.write(newData);
    //newFile.close();
    //System.out.println("done");

    //instanciate the new dataChunk array
    //creates new byte array for
    audioData = new byte[(int)wavFile.getDataChunkSize()];

    //reads the dataChunk into the audio data array
    audioData = wavFile.readData();
    totalFileData = new byte[(int)v.elementAt(0).getFile().length()];
    totalFileData = v.elementAt(0).readData();
    int aCount = 0;

    //loop through total file bytes
    for(int i = 0; i<v.elementAt(0).getFile().length();i++)
    {
    //new temp bitset
    BitSet tempBits = new BitSet(8);

    //convert the first byte of the array to bits
    tempBits = fromByte(totalFileData[i]);
    //System.out.println("encode: "+(char)totalFileData[i]);

    //for each bit
    for(int j = 0;j<8;j++)
    {
    BitSet tempBits2 = new BitSet(8);

    //convert the current audio data byte to bits
    tempBits2 = fromByte(audioData[aCount]);

    //set the lsb of the current audio byte to the j'th bit of tempBitSet
    //tempBits2.set(0, tempBits.get(j));
    if(tempBits.get(j) == true)
    tempBits2.set(0);

    //convert back to byte and copy into newData array
    byte bb[] = new byte[1];
    bb = toByteArray(tempBits2);
    newFile.write(bb);
    //System.arraycopy(bb, 0, newData, aCount, 1);
    aCount++;
    }
    }
    if(aCount < (int)wavFile.getDataChunkSize())
    {
    newData = new byte[(int)wavFile.getDataChunkSize() - aCount];
    System.arraycopy(audioData, aCount, newData, 0, (int)wavFile.getDataChunkSize() - aCount);
    newFile.write(newData);
    }
    newFile.close();
    System.out.println("done");
    }
    catch(Exception e)
    {
    System.out.println("writeWaveFile(): "+e.toString());
    }
    }
    }


  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
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    SW Missouri
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    Default Re: Error In WavFile.....

    Do you have a question?

    Please Edit your post and wrap your code with[code=java]<YOUR CODE HERE>[/code] to get highlighting
    If you don't understand my answer, don't ignore it, ask a question.