mpegformatconversionprovider.java

java处理声音文件

/*
 *	MpegFormatConversionProvider.java
 */

/*
 *  Copyright (c) 1999 by Matthias Pfisterer <[e-mail]>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as published
 *   by the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


package	org.tritonus.sampled.convert;


import	java.io.File;
import	java.io.FileOutputStream;
import	java.io.ByteArrayInputStream;
import	java.io.InputStream;
import	java.io.IOException;
import	java.io.OutputStream;

import	java.util.Arrays;

import	javax.sound.sampled.AudioFormat;
import	javax.sound.sampled.AudioInputStream;
import	javax.sound.sampled.spi.FormatConversionProvider;

import	org.tritonus.TDebug;
import	org.tritonus.sampled.Encodings;
import	org.tritonus.util.TCircularBuffer;

import	javazoom.jl.decoder.Bitstream;
import	javazoom.jl.decoder.BitstreamException;
import	javazoom.jl.decoder.Decoder;
import	javazoom.jl.decoder.DecoderException;
import	javazoom.jl.decoder.Header;
import	javazoom.jl.decoder.Obuffer;

/**
 * ConversionProvider for MPEG files.
 *
 * @author Matthias Pfisterer
 */


public class MpegFormatConversionProvider
	extends		TMatrixFormatConversionProvider
{

	public static final AudioFormat.Encoding	MPEG1L1 = Encodings.getEncoding("MPEG1L1");
	public static final AudioFormat.Encoding	MPEG1L2 = Encodings.getEncoding("MPEG1L2");
	public static final AudioFormat.Encoding	MPEG1L3 = Encodings.getEncoding("MPEG1L3");
	public static final AudioFormat.Encoding	MPEG2L1 = Encodings.getEncoding("MPEG2L1");
	public static final AudioFormat.Encoding	MPEG2L2 = Encodings.getEncoding("MPEG2L2");
	public static final AudioFormat.Encoding	MPEG2L3 = Encodings.getEncoding("MPEG2L3");
	public static final AudioFormat.Encoding	MPEG2DOT5L1 = Encodings.getEncoding("MPEG2DOT5L1");
	public static final AudioFormat.Encoding	MPEG2DOT5L2 = Encodings.getEncoding("MPEG2DOT5L2");
	public static final AudioFormat.Encoding	MPEG2DOT5L3 = Encodings.getEncoding("MPEG2DOT5L3");

/*
	private static final AudioFormat.Encoding[]	INPUT_ENCODINGS =
	{
		MPEG1L1, MPEG1L2, MPEG1L3,
		MPEG2L1, MPEG2L2, MPEG2L3,
		MPEG2DOT5L1, MPEG2DOT5L2, MPEG2DOT5L3
	};
	private static final AudioFormat.Encoding[]	OUTPUT_ENCODINGS =
	{
		AudioFormat.Encoding.PCM_SIGNED
	};
*/

	// TODO: frame size, frame rate, sample size, endianess?
	private static final AudioFormat[]	INPUT_FORMATS =
	{
		new AudioFormat(MPEG1L1, 32000.0F, -1, 1, -1, -1, false),	// 0
		new AudioFormat(MPEG1L1, 32000.0F, -1, 2, -1, -1, false),	// 1
		new AudioFormat(MPEG1L1, 44100.0F, -1, 1, -1, -1, false),	// 2
		new AudioFormat(MPEG1L1, 44100.0F, -1, 2, -1, -1, false),	// 3
		new AudioFormat(MPEG1L1, 48000.0F, -1, 1, -1, -1, false),	// 4
		new AudioFormat(MPEG1L1, 48000.0F, -1, 2, -1, -1, false),	// 5

		new AudioFormat(MPEG1L2, 32000.0F, -1, 1, -1, -1, false),	// 6
		new AudioFormat(MPEG1L2, 32000.0F, -1, 2, -1, -1, false),	// 7
		new AudioFormat(MPEG1L2, 44100.0F, -1, 1, -1, -1, false),	// 8
		new AudioFormat(MPEG1L2, 44100.0F, -1, 2, -1, -1, false),	// 9
		new AudioFormat(MPEG1L2, 48000.0F, -1, 1, -1, -1, false),	// 10
		new AudioFormat(MPEG1L2, 48000.0F, -1, 2, -1, -1, false),	// 11

		new AudioFormat(MPEG1L3, 32000.0F, -1, 1, -1, -1, false),	// 12
		new AudioFormat(MPEG1L3, 32000.0F, -1, 2, -1, -1, false),	// 13
		new AudioFormat(MPEG1L3, 44100.0F, -1, 1, -1, -1, false),	// 14
		new AudioFormat(MPEG1L3, 44100.0F, -1, 2, -1, -1, false),	// 15
		new AudioFormat(MPEG1L3, 48000.0F, -1, 1, -1, -1, false),	// 16
		new AudioFormat(MPEG1L3, 48000.0F, -1, 2, -1, -1, false),	// 17

		new AudioFormat(MPEG2L1, 16000.0F, -1, 1, -1, -1, false),	// 18
		new AudioFormat(MPEG2L1, 16000.0F, -1, 2, -1, -1, false),	// 19
		new AudioFormat(MPEG2L1, 22050.0F, -1, 1, -1, -1, false),	// 20
		new AudioFormat(MPEG2L1, 22050.0F, -1, 2, -1, -1, false),	// 21
		new AudioFormat(MPEG2L1, 24000.0F, -1, 1, -1, -1, false),	// 22
		new AudioFormat(MPEG2L1, 24000.0F, -1, 2, -1, -1, false),	// 23

		new AudioFormat(MPEG2L2, 16000.0F, -1, 1, -1, -1, false),	// 24
		new AudioFormat(MPEG2L2, 16000.0F, -1, 2, -1, -1, false),	// 25
		new AudioFormat(MPEG2L2, 22050.0F, -1, 1, -1, -1, false),	// 26
		new AudioFormat(MPEG2L2, 22050.0F, -1, 2, -1, -1, false),	// 27
		new AudioFormat(MPEG2L2, 24000.0F, -1, 1, -1, -1, false),	// 28
		new AudioFormat(MPEG2L2, 24000.0F, -1, 2, -1, -1, false),	// 29

		new AudioFormat(MPEG2L3, 16000.0F, -1, 1, -1, -1, false),	// 30
		new AudioFormat(MPEG2L3, 16000.0F, -1, 2, -1, -1, false),	// 31
		new AudioFormat(MPEG2L3, 22050.0F, -1, 1, -1, -1, false),	// 32
		new AudioFormat(MPEG2L3, 22050.0F, -1, 2, -1, -1, false),	// 33
		new AudioFormat(MPEG2L3, 24000.0F, -1, 1, -1, -1, false),	// 34
		new AudioFormat(MPEG2L3, 24000.0F, -1, 2, -1, -1, false),	// 35

		new AudioFormat(MPEG2DOT5L1, 8000.0F, -1, 1, -1, -1, false),	// 36
		new AudioFormat(MPEG2DOT5L1, 8000.0F, -1, 2, -1, -1, false),	// 37
		new AudioFormat(MPEG2DOT5L1, 11025.0F, -1, 1, -1, -1, false),	// 38
		new AudioFormat(MPEG2DOT5L1, 11025.0F, -1, 2, -1, -1, false),	// 39
		new AudioFormat(MPEG2DOT5L1, 12000.0F, -1, 1, -1, -1, false),	// 40
		new AudioFormat(MPEG2DOT5L1, 12000.0F, -1, 2, -1, -1, false),	// 41

		new AudioFormat(MPEG2DOT5L2, 8000.0F, -1, 1, -1, -1, false),	// 42
		new AudioFormat(MPEG2DOT5L2, 8000.0F, -1, 2, -1, -1, false),	// 43
		new AudioFormat(MPEG2DOT5L2, 11025.0F, -1, 1, -1, -1, false),	// 44
		new AudioFormat(MPEG2DOT5L2, 11025.0F, -1, 2, -1, -1, false),	// 45
		new AudioFormat(MPEG2DOT5L2, 12000.0F, -1, 1, -1, -1, false),	// 46
		new AudioFormat(MPEG2DOT5L2, 12000.0F, -1, 2, -1, -1, false),	// 47

		new AudioFormat(MPEG2DOT5L3, 8000.0F, -1, 1, -1, -1, false),	// 48
		new AudioFormat(MPEG2DOT5L3, 8000.0F, -1, 2, -1, -1, false),	// 49
		new AudioFormat(MPEG2DOT5L3, 11025.0F, -1, 1, -1, -1, false),	// 50
		new AudioFormat(MPEG2DOT5L3, 11025.0F, -1, 2, -1, -1, false),	// 51
		new AudioFormat(MPEG2DOT5L3, 12000.0F, -1, 1, -1, -1, false),	// 52
		new AudioFormat(MPEG2DOT5L3, 12000.0F, -1, 2, -1, -1, false),	// 53
	};


	private static final AudioFormat[]	OUTPUT_FORMATS =
	{
		new AudioFormat(8000.0F, 16, 1, true, false),	// 0
		new AudioFormat(8000.0F, 16, 1, true, true),	// 1
		new AudioFormat(8000.0F, 16, 2, true, false),	// 2
		new AudioFormat(8000.0F, 16, 2, true, true),	// 3
/*	24 and 32 bit not yet possible
		new AudioFormat(8000.0F, 24, 1, true, false),
		new AudioFormat(8000.0F, 24, 1, true, true),
		new AudioFormat(8000.0F, 24, 2, true, false),
		new AudioFormat(8000.0F, 24, 2, true, true),
		new AudioFormat(8000.0F, 32, 1, true, false),
		new AudioFormat(8000.0F, 32, 1, true, true),
		new AudioFormat(8000.0F, 32, 2, true, false),
		new AudioFormat(8000.0F, 32, 2, true, true),
*/
		new AudioFormat(11025.0F, 16, 1, true, false),	// 4
		new AudioFormat(11025.0F, 16, 1, true, true),	// 5
		new AudioFormat(11025.0F, 16, 2, true, false),	// 6
		new AudioFormat(11025.0F, 16, 2, true, true),	// 7
/*	24 and 32 bit not yet possible
		new AudioFormat(11025.0F, 24, 1, true, false),
		new AudioFormat(11025.0F, 24, 1, true, true),
		new AudioFormat(11025.0F, 24, 2, true, false),
		new AudioFormat(11025.0F, 24, 2, true, true),
		new AudioFormat(11025.0F, 32, 1, true, false),
		new AudioFormat(11025.0F, 32, 1, true, true),
		new AudioFormat(11025.0F, 32, 2, true, false),
		new AudioFormat(11025.0F, 32, 2, true, true),
*/
		new AudioFormat(12000.0F, 16, 1, true, false),	// 8
		new AudioFormat(12000.0F, 16, 1, true, true),	// 9
		new AudioFormat(12000.0F, 16, 2, true, false),	// 10
		new AudioFormat(12000.0F, 16, 2, true, true),	// 11
/*	24 and 32 bit not yet possible
		new AudioFormat(12000.0F, 24, 1, true, false),
		new AudioFormat(12000.0F, 24, 1, true, true),
		new AudioFormat(12000.0F, 24, 2, true, false),
		new AudioFormat(12000.0F, 24, 2, true, true),
		new AudioFormat(12000.0F, 32, 1, true, false),
		new AudioFormat(12000.0F, 32, 1, true, true),
		new AudioFormat(12000.0F, 32, 2, true, false),
		new AudioFormat(12000.0F, 32, 2, true, true),
*/
		new AudioFormat(16000.0F, 16, 1, true, false),	// 12
		new AudioFormat(16000.0F, 16, 1, true, true),	// 13
		new AudioFormat(16000.0F, 16, 2, true, false),	// 14
		new AudioFormat(16000.0F, 16, 2, true, true),	// 15
/*	24 and 32 bit not yet possible
		new AudioFormat(16000.0F, 24, 1, true, false),
		new AudioFormat(16000.0F, 24, 1, true, true),
		new AudioFormat(16000.0F, 24, 2, true, false),
		new AudioFormat(16000.0F, 24, 2, true, true),
		new AudioFormat(16000.0F, 32, 1, true, false),
		new AudioFormat(16000.0F, 32, 1, true, true),
		new AudioFormat(16000.0F, 32, 2, true, false),
		new AudioFormat(16000.0F, 32, 2, true, true),
*/
		new AudioFormat(22050.0F, 16, 1, true, false),	// 16
		new AudioFormat(22050.0F, 16, 1, true, true),	// 17
		new AudioFormat(22050.0F, 16, 2, true, false),	// 18
		new AudioFormat(22050.0F, 16, 2, true, true),	// 19
/*	24 and 32 bit not yet possible
		new AudioFormat(22050.0F, 24, 1, true, false),
		new AudioFormat(22050.0F, 24, 1, true, true),
		new AudioFormat(22050.0F, 24, 2, true, false),
		new AudioFormat(22050.0F, 24, 2, true, true),
		new AudioFormat(22050.0F, 32, 1, true, false),
		new AudioFormat(22050.0F, 32, 1, true, true),
		new AudioFormat(22050.0F, 32, 2, true, false),
		new AudioFormat(22050.0F, 32, 2, true, true),
*/
		new AudioFormat(24000.0F, 16, 1, true, false),	// 20
		new AudioFormat(24000.0F, 16, 1, true, true),	// 21
		new AudioFormat(24000.0F, 16, 2, true, false),	// 22
		new AudioFormat(24000.0F, 16, 2, true, true),	// 23
/*	24 and 32 bit not yet possible
		new AudioFormat(24000.0F, 24, 1, true, false),
		new AudioFormat(24000.0F, 24, 1, true, true),
		new AudioFormat(24000.0F, 24, 2, true, false),
		new AudioFormat(24000.0F, 24, 2, true, true),
		new AudioFormat(24000.0F, 32, 1, true, false),
		new AudioFormat(24000.0F, 32, 1, true, true),
		new AudioFormat(24000.0F, 32, 2, true, false),
		new AudioFormat(24000.0F, 32, 2, true, true),
*/
		new AudioFormat(32000.0F, 16, 1, true, false),	// 24
		new AudioFormat(32000.0F, 16, 1, true, true),	// 25
		new AudioFormat(32000.0F, 16, 2, true, false),	// 26
		new AudioFormat(32000.0F, 16, 2, true, true),	// 27
/*	24 and 32 bit not yet possible
		new AudioFormat(32000.0F, 24, 1, true, false),
		new AudioFormat(32000.0F, 24, 1, true, true),
		new AudioFormat(32000.0F, 24, 2, true, false),
		new AudioFormat(32000.0F, 24, 2, true, true),
		new AudioFormat(32000.0F, 32, 1, true, false),
		new AudioFormat(32000.0F, 32, 1, true, true),
		new AudioFormat(32000.0F, 32, 2, true, false),
		new AudioFormat(32000.0F, 32, 2, true, true),
*/
		new AudioFormat(44100.0F, 16, 1, true, false),	// 28
		new AudioFormat(44100.0F, 16, 1, true, true),	// 29
		new AudioFormat(44100.0F, 16, 2, true, false),	// 30
		new AudioFormat(44100.0F, 16, 2, true, true),	// 31
/*	24 and 32 bit not yet possible
		new AudioFormat(44100.0F, 24, 1, true, false),
		new AudioFormat(44100.0F, 24, 1, true, true),
		new AudioFormat(44100.0F, 24, 2, true, false),
		new AudioFormat(44100.0F, 24, 2, true, true),
		new AudioFormat(44100.0F, 32, 1, true, false),
		new AudioFormat(44100.0F, 32, 1, true, true),
		new AudioFormat(44100.0F, 32, 2, true, false),
		new AudioFormat(44100.0F, 32, 2, true, true),
*/
		new AudioFormat(48000.0F, 16, 1, true, false),	// 32
		new AudioFormat(48000.0F, 16, 1, true, true),	// 33
		new AudioFormat(48000.0F, 16, 2, true, false),	// 34
		new AudioFormat(48000.0F, 16, 2, true, true),	// 35
/*	24 and 32 bit not yet possible
		new AudioFormat(48000.0F, 24, 1, true, false),
		new AudioFormat(48000.0F, 24, 1, true, true),
		new AudioFormat(48000.0F, 24, 2, true, false),
		new AudioFormat(48000.0F, 24, 2, true, true),
		new AudioFormat(48000.0F, 32, 1, true, false),
		new AudioFormat(48000.0F, 32, 1, true, true),
		new AudioFormat(48000.0F, 32, 2, true, false),
		new AudioFormat(48000.0F, 32, 2, true, true),
*/
	};