author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 8525 | 08f98f5a11df |
child 18215 | b2afd66ce6db |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.media.sound; |
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import java.io.File; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.io.IOException; |
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import java.io.BufferedOutputStream; |
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import java.io.DataOutputStream; |
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import java.io.FileOutputStream; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.RandomAccessFile; |
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import java.io.SequenceInputStream; |
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import javax.sound.sampled.AudioFileFormat; |
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import javax.sound.sampled.AudioInputStream; |
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import javax.sound.sampled.AudioFormat; |
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import javax.sound.sampled.AudioSystem; |
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/** |
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* AU file writer. |
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* |
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* @author Jan Borgersen |
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*/ |
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public class AuFileWriter extends SunFileWriter { |
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//$$fb value for length field if length is not known |
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public final static int UNKNOWN_SIZE=-1; |
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/** |
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* AU type |
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*/ |
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private static final AudioFileFormat.Type auTypes[] = { |
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AudioFileFormat.Type.AU |
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}; |
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/** |
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* Constructs a new AuFileWriter object. |
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*/ |
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public AuFileWriter() { |
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super(auTypes); |
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} |
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public AudioFileFormat.Type[] getAudioFileTypes(AudioInputStream stream) { |
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AudioFileFormat.Type[] filetypes = new AudioFileFormat.Type[types.length]; |
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System.arraycopy(types, 0, filetypes, 0, types.length); |
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// make sure we can write this stream |
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AudioFormat format = stream.getFormat(); |
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AudioFormat.Encoding encoding = format.getEncoding(); |
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if( (AudioFormat.Encoding.ALAW.equals(encoding)) || |
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(AudioFormat.Encoding.ULAW.equals(encoding)) || |
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(AudioFormat.Encoding.PCM_SIGNED.equals(encoding)) || |
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(AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) ) { |
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return filetypes; |
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} |
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return new AudioFileFormat.Type[0]; |
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} |
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public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException { |
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// we must know the total data length to calculate the file length |
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//$$fb 2001-07-13: fix for bug 4351296: do not throw an exception |
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//if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) { |
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// throw new IOException("stream length not specified"); |
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//} |
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// throws IllegalArgumentException if not supported |
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AuFileFormat auFileFormat = (AuFileFormat)getAudioFileFormat(fileType, stream); |
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int bytesWritten = writeAuFile(stream, auFileFormat, out); |
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return bytesWritten; |
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} |
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public int write(AudioInputStream stream, AudioFileFormat.Type fileType, File out) throws IOException { |
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// throws IllegalArgumentException if not supported |
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AuFileFormat auFileFormat = (AuFileFormat)getAudioFileFormat(fileType, stream); |
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// first write the file without worrying about length fields |
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FileOutputStream fos = new FileOutputStream( out ); // throws IOException |
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BufferedOutputStream bos = new BufferedOutputStream( fos, bisBufferSize ); |
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int bytesWritten = writeAuFile(stream, auFileFormat, bos ); |
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bos.close(); |
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// now, if length fields were not specified, calculate them, |
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// open as a random access file, write the appropriate fields, |
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// close again.... |
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if( auFileFormat.getByteLength()== AudioSystem.NOT_SPECIFIED ) { |
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// $$kk: 10.22.99: jan: please either implement this or throw an exception! |
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// $$fb: 2001-07-13: done. Fixes Bug 4479981 |
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RandomAccessFile raf=new RandomAccessFile(out, "rw"); |
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if (raf.length()<=0x7FFFFFFFl) { |
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// skip AU magic and data offset field |
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raf.skipBytes(8); |
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raf.writeInt(bytesWritten-AuFileFormat.AU_HEADERSIZE); |
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// that's all |
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} |
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raf.close(); |
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} |
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return bytesWritten; |
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} |
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// ------------------------------------------------------------- |
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/** |
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* Returns the AudioFileFormat describing the file that will be written from this AudioInputStream. |
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* Throws IllegalArgumentException if not supported. |
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*/ |
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private AudioFileFormat getAudioFileFormat(AudioFileFormat.Type type, AudioInputStream stream) { |
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AudioFormat format = null; |
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AuFileFormat fileFormat = null; |
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AudioFormat.Encoding encoding = AudioFormat.Encoding.PCM_SIGNED; |
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AudioFormat streamFormat = stream.getFormat(); |
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AudioFormat.Encoding streamEncoding = streamFormat.getEncoding(); |
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float sampleRate; |
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int sampleSizeInBits; |
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int channels; |
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int frameSize; |
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float frameRate; |
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int fileSize; |
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if( !types[0].equals(type) ) { |
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throw new IllegalArgumentException("File type " + type + " not supported."); |
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} |
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if( (AudioFormat.Encoding.ALAW.equals(streamEncoding)) || |
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(AudioFormat.Encoding.ULAW.equals(streamEncoding)) ) { |
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encoding = streamEncoding; |
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sampleSizeInBits = streamFormat.getSampleSizeInBits(); |
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} else if ( streamFormat.getSampleSizeInBits()==8 ) { |
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encoding = AudioFormat.Encoding.PCM_SIGNED; |
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sampleSizeInBits=8; |
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} else { |
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encoding = AudioFormat.Encoding.PCM_SIGNED; |
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sampleSizeInBits=streamFormat.getSampleSizeInBits(); |
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} |
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format = new AudioFormat( encoding, |
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streamFormat.getSampleRate(), |
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sampleSizeInBits, |
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streamFormat.getChannels(), |
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streamFormat.getFrameSize(), |
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streamFormat.getFrameRate(), |
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true); // AU is always big endian |
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if( stream.getFrameLength()!=AudioSystem.NOT_SPECIFIED ) { |
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fileSize = (int)stream.getFrameLength()*streamFormat.getFrameSize() + AuFileFormat.AU_HEADERSIZE; |
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} else { |
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fileSize = AudioSystem.NOT_SPECIFIED; |
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} |
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fileFormat = new AuFileFormat( AudioFileFormat.Type.AU, |
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fileSize, |
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format, |
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(int)stream.getFrameLength() ); |
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return fileFormat; |
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} |
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private InputStream getFileStream(AuFileFormat auFileFormat, InputStream audioStream) throws IOException { |
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// private method ... assumes auFileFormat is a supported file type |
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AudioFormat format = auFileFormat.getFormat(); |
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int magic = AuFileFormat.AU_SUN_MAGIC; |
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int headerSize = AuFileFormat.AU_HEADERSIZE; |
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long dataSize = auFileFormat.getFrameLength(); |
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//$$fb fix for Bug 4351296 |
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//int dataSizeInBytes = dataSize * format.getFrameSize(); |
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long dataSizeInBytes = (dataSize==AudioSystem.NOT_SPECIFIED)?UNKNOWN_SIZE:dataSize * format.getFrameSize(); |
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if (dataSizeInBytes>0x7FFFFFFFl) { |
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dataSizeInBytes=UNKNOWN_SIZE; |
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} |
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int encoding_local = auFileFormat.getAuType(); |
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int sampleRate = (int)format.getSampleRate(); |
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int channels = format.getChannels(); |
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//$$fb below is the fix for 4297100. |
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//boolean bigendian = format.isBigEndian(); |
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boolean bigendian = true; // force bigendian |
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byte header[] = null; |
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ByteArrayInputStream headerStream = null; |
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ByteArrayOutputStream baos = null; |
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DataOutputStream dos = null; |
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SequenceInputStream auStream = null; |
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AudioFormat audioStreamFormat = null; |
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AudioFormat.Encoding encoding = null; |
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InputStream codedAudioStream = audioStream; |
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// if we need to do any format conversion, do it here. |
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codedAudioStream = audioStream; |
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if( audioStream instanceof AudioInputStream ) { |
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audioStreamFormat = ((AudioInputStream)audioStream).getFormat(); |
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encoding = audioStreamFormat.getEncoding(); |
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//$$ fb 2001-07-13: Bug 4391108 |
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if( (AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) || |
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(AudioFormat.Encoding.PCM_SIGNED.equals(encoding) |
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&& bigendian != audioStreamFormat.isBigEndian()) ) { |
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// plug in the transcoder to convert to PCM_SIGNED, bigendian |
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// NOTE: little endian AU is not common, so we're always converting |
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// to big endian unless the passed in audioFileFormat is little. |
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// $$fb this NOTE is superseded. We always write big endian au files, this is by far the standard. |
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codedAudioStream = AudioSystem.getAudioInputStream( new AudioFormat ( |
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AudioFormat.Encoding.PCM_SIGNED, |
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audioStreamFormat.getSampleRate(), |
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audioStreamFormat.getSampleSizeInBits(), |
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audioStreamFormat.getChannels(), |
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audioStreamFormat.getFrameSize(), |
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audioStreamFormat.getFrameRate(), |
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bigendian), |
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(AudioInputStream)audioStream ); |
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} |
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} |
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baos = new ByteArrayOutputStream(); |
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dos = new DataOutputStream(baos); |
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if (bigendian) { |
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dos.writeInt(AuFileFormat.AU_SUN_MAGIC); |
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dos.writeInt(headerSize); |
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dos.writeInt((int)dataSizeInBytes); |
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dos.writeInt(encoding_local); |
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dos.writeInt(sampleRate); |
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dos.writeInt(channels); |
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} else { |
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dos.writeInt(AuFileFormat.AU_SUN_INV_MAGIC); |
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dos.writeInt(big2little(headerSize)); |
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dos.writeInt(big2little((int)dataSizeInBytes)); |
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dos.writeInt(big2little(encoding_local)); |
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dos.writeInt(big2little(sampleRate)); |
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dos.writeInt(big2little(channels)); |
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} |
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// Now create a new InputStream from headerStream and the InputStream |
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// in audioStream |
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dos.close(); |
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header = baos.toByteArray(); |
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headerStream = new ByteArrayInputStream( header ); |
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08f98f5a11df
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parents:
5506
diff
changeset
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auStream = new SequenceInputStream(headerStream, |
08f98f5a11df
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new NoCloseInputStream(codedAudioStream)); |
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return auStream; |
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} |
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private int writeAuFile(InputStream in, AuFileFormat auFileFormat, OutputStream out) throws IOException { |
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int bytesRead = 0; |
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int bytesWritten = 0; |
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InputStream fileStream = getFileStream(auFileFormat, in); |
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byte buffer[] = new byte[bisBufferSize]; |
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int maxLength = auFileFormat.getByteLength(); |
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while( (bytesRead = fileStream.read( buffer )) >= 0 ) { |
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if (maxLength>0) { |
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if( bytesRead < maxLength ) { |
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out.write( buffer, 0, (int)bytesRead ); |
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bytesWritten += bytesRead; |
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maxLength -= bytesRead; |
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} else { |
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out.write( buffer, 0, (int)maxLength ); |
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bytesWritten += maxLength; |
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maxLength = 0; |
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break; |
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} |
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} else { |
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out.write( buffer, 0, (int)bytesRead ); |
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bytesWritten += bytesRead; |
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} |
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} |
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return bytesWritten; |
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} |
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} |