WaveFileManager.java

/*
 * Copyright (C) 2011 Jacquet Wong
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.musicg.wave;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;


public class WaveFileManager{
	
	private Wave wave;
	
	public WaveFileManager(){	
		wave=new Wave();
	}
	
	public WaveFileManager(Wave wave){
		setWave(wave);
	}

	/**
	 * Save the wave file
	 * 
	 * @param filename
	 *            filename to be saved
	 *            
	 * @see	wave file saved
	 */
	public void saveWaveAsFile(String filename){

		WaveHeader waveHeader=wave.getWaveHeader();
		
		int byteRate = waveHeader.getByteRate();
		int audioFormat = waveHeader.getAudioFormat();
		int sampleRate = waveHeader.getSampleRate();
		int bitsPerSample = waveHeader.getBitsPerSample();
		int channels = waveHeader.getChannels();
		long chunkSize = waveHeader.getChunkSize();
		long subChunk1Size = waveHeader.getSubChunk1Size();
		long subChunk2Size = waveHeader.getSubChunk2Size();
		int blockAlign = waveHeader.getBlockAlign();

		try {
			FileOutputStream fos = new FileOutputStream(filename);
			fos.write(WaveHeader.RIFF_HEADER.getBytes());
			// little endian
			fos.write(new byte[] { (byte) (chunkSize), (byte) (chunkSize >> 8),
					(byte) (chunkSize >> 16), (byte) (chunkSize >> 24) });
			fos.write(WaveHeader.WAVE_HEADER.getBytes());
			fos.write(WaveHeader.FMT_HEADER.getBytes());
			fos.write(new byte[] { (byte) (subChunk1Size),
					(byte) (subChunk1Size >> 8), (byte) (subChunk1Size >> 16),
					(byte) (subChunk1Size >> 24) });
			fos.write(new byte[] { (byte) (audioFormat),
					(byte) (audioFormat >> 8) });
			fos.write(new byte[] { (byte) (channels), (byte) (channels >> 8) });
			fos.write(new byte[] { (byte) (sampleRate),
					(byte) (sampleRate >> 8), (byte) (sampleRate >> 16),
					(byte) (sampleRate >> 24) });
			fos.write(new byte[] { (byte) (byteRate), (byte) (byteRate >> 8),
					(byte) (byteRate >> 16), (byte) (byteRate >> 24) });
			fos.write(new byte[] { (byte) (blockAlign),
					(byte) (blockAlign >> 8) });
			fos.write(new byte[] { (byte) (bitsPerSample),
					(byte) (bitsPerSample >> 8) });
			fos.write(WaveHeader.DATA_HEADER.getBytes());
			fos.write(new byte[] { (byte) (subChunk2Size),
					(byte) (subChunk2Size >> 8), (byte) (subChunk2Size >> 16),
					(byte) (subChunk2Size >> 24) });
			fos.write(wave.getBytes());
			fos.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	public Wave getWave() {
		return wave;
	}

	public void setWave(Wave wave) {
		this.wave = wave;
	}
}