| /* |
| * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.media.sound; |
| |
| import java.io.File; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.IOException; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.DataOutputStream; |
| import java.io.FileOutputStream; |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.RandomAccessFile; |
| import java.io.SequenceInputStream; |
| |
| import javax.sound.sampled.AudioFileFormat; |
| import javax.sound.sampled.AudioInputStream; |
| import javax.sound.sampled.AudioFormat; |
| import javax.sound.sampled.AudioSystem; |
| |
| |
| /** |
| * AU file writer. |
| * |
| * @author Jan Borgersen |
| */ |
| public final class AuFileWriter extends SunFileWriter { |
| |
| //$$fb value for length field if length is not known |
| public final static int UNKNOWN_SIZE=-1; |
| |
| /** |
| * Constructs a new AuFileWriter object. |
| */ |
| public AuFileWriter() { |
| super(new AudioFileFormat.Type[]{AudioFileFormat.Type.AU}); |
| } |
| |
| public AudioFileFormat.Type[] getAudioFileTypes(AudioInputStream stream) { |
| |
| AudioFileFormat.Type[] filetypes = new AudioFileFormat.Type[types.length]; |
| System.arraycopy(types, 0, filetypes, 0, types.length); |
| |
| // make sure we can write this stream |
| AudioFormat format = stream.getFormat(); |
| AudioFormat.Encoding encoding = format.getEncoding(); |
| |
| if( (AudioFormat.Encoding.ALAW.equals(encoding)) || |
| (AudioFormat.Encoding.ULAW.equals(encoding)) || |
| (AudioFormat.Encoding.PCM_SIGNED.equals(encoding)) || |
| (AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) ) { |
| |
| return filetypes; |
| } |
| |
| return new AudioFileFormat.Type[0]; |
| } |
| |
| |
| public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException { |
| |
| // we must know the total data length to calculate the file length |
| //$$fb 2001-07-13: fix for bug 4351296: do not throw an exception |
| //if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) { |
| // throw new IOException("stream length not specified"); |
| //} |
| |
| // throws IllegalArgumentException if not supported |
| AuFileFormat auFileFormat = (AuFileFormat)getAudioFileFormat(fileType, stream); |
| |
| int bytesWritten = writeAuFile(stream, auFileFormat, out); |
| return bytesWritten; |
| } |
| |
| |
| |
| public int write(AudioInputStream stream, AudioFileFormat.Type fileType, File out) throws IOException { |
| |
| // throws IllegalArgumentException if not supported |
| AuFileFormat auFileFormat = (AuFileFormat)getAudioFileFormat(fileType, stream); |
| |
| // first write the file without worrying about length fields |
| FileOutputStream fos = new FileOutputStream( out ); // throws IOException |
| BufferedOutputStream bos = new BufferedOutputStream( fos, bisBufferSize ); |
| int bytesWritten = writeAuFile(stream, auFileFormat, bos ); |
| bos.close(); |
| |
| // now, if length fields were not specified, calculate them, |
| // open as a random access file, write the appropriate fields, |
| // close again.... |
| if( auFileFormat.getByteLength()== AudioSystem.NOT_SPECIFIED ) { |
| |
| // $$kk: 10.22.99: jan: please either implement this or throw an exception! |
| // $$fb: 2001-07-13: done. Fixes Bug 4479981 |
| RandomAccessFile raf=new RandomAccessFile(out, "rw"); |
| if (raf.length()<=0x7FFFFFFFl) { |
| // skip AU magic and data offset field |
| raf.skipBytes(8); |
| raf.writeInt(bytesWritten-AuFileFormat.AU_HEADERSIZE); |
| // that's all |
| } |
| raf.close(); |
| } |
| |
| return bytesWritten; |
| } |
| |
| |
| // ------------------------------------------------------------- |
| |
| /** |
| * Returns the AudioFileFormat describing the file that will be written from this AudioInputStream. |
| * Throws IllegalArgumentException if not supported. |
| */ |
| private AudioFileFormat getAudioFileFormat(AudioFileFormat.Type type, AudioInputStream stream) { |
| |
| AudioFormat format = null; |
| AuFileFormat fileFormat = null; |
| AudioFormat.Encoding encoding = AudioFormat.Encoding.PCM_SIGNED; |
| |
| AudioFormat streamFormat = stream.getFormat(); |
| AudioFormat.Encoding streamEncoding = streamFormat.getEncoding(); |
| |
| |
| float sampleRate; |
| int sampleSizeInBits; |
| int channels; |
| int frameSize; |
| float frameRate; |
| int fileSize; |
| |
| if( !types[0].equals(type) ) { |
| throw new IllegalArgumentException("File type " + type + " not supported."); |
| } |
| |
| if( (AudioFormat.Encoding.ALAW.equals(streamEncoding)) || |
| (AudioFormat.Encoding.ULAW.equals(streamEncoding)) ) { |
| |
| encoding = streamEncoding; |
| sampleSizeInBits = streamFormat.getSampleSizeInBits(); |
| |
| } else if ( streamFormat.getSampleSizeInBits()==8 ) { |
| |
| encoding = AudioFormat.Encoding.PCM_SIGNED; |
| sampleSizeInBits=8; |
| |
| } else { |
| |
| encoding = AudioFormat.Encoding.PCM_SIGNED; |
| sampleSizeInBits=streamFormat.getSampleSizeInBits(); |
| } |
| |
| |
| format = new AudioFormat( encoding, |
| streamFormat.getSampleRate(), |
| sampleSizeInBits, |
| streamFormat.getChannels(), |
| streamFormat.getFrameSize(), |
| streamFormat.getFrameRate(), |
| true); // AU is always big endian |
| |
| |
| if( stream.getFrameLength()!=AudioSystem.NOT_SPECIFIED ) { |
| fileSize = (int)stream.getFrameLength()*streamFormat.getFrameSize() + AuFileFormat.AU_HEADERSIZE; |
| } else { |
| fileSize = AudioSystem.NOT_SPECIFIED; |
| } |
| |
| fileFormat = new AuFileFormat( AudioFileFormat.Type.AU, |
| fileSize, |
| format, |
| (int)stream.getFrameLength() ); |
| |
| return fileFormat; |
| } |
| |
| |
| private InputStream getFileStream(AuFileFormat auFileFormat, InputStream audioStream) throws IOException { |
| |
| // private method ... assumes auFileFormat is a supported file type |
| |
| AudioFormat format = auFileFormat.getFormat(); |
| |
| int magic = AuFileFormat.AU_SUN_MAGIC; |
| int headerSize = AuFileFormat.AU_HEADERSIZE; |
| long dataSize = auFileFormat.getFrameLength(); |
| //$$fb fix for Bug 4351296 |
| //int dataSizeInBytes = dataSize * format.getFrameSize(); |
| long dataSizeInBytes = (dataSize==AudioSystem.NOT_SPECIFIED)?UNKNOWN_SIZE:dataSize * format.getFrameSize(); |
| if (dataSizeInBytes>0x7FFFFFFFl) { |
| dataSizeInBytes=UNKNOWN_SIZE; |
| } |
| int encoding_local = auFileFormat.getAuType(); |
| int sampleRate = (int)format.getSampleRate(); |
| int channels = format.getChannels(); |
| //$$fb below is the fix for 4297100. |
| //boolean bigendian = format.isBigEndian(); |
| boolean bigendian = true; // force bigendian |
| |
| byte header[] = null; |
| ByteArrayInputStream headerStream = null; |
| ByteArrayOutputStream baos = null; |
| DataOutputStream dos = null; |
| SequenceInputStream auStream = null; |
| |
| AudioFormat audioStreamFormat = null; |
| AudioFormat.Encoding encoding = null; |
| InputStream codedAudioStream = audioStream; |
| |
| // if we need to do any format conversion, do it here. |
| |
| codedAudioStream = audioStream; |
| |
| if( audioStream instanceof AudioInputStream ) { |
| |
| |
| audioStreamFormat = ((AudioInputStream)audioStream).getFormat(); |
| encoding = audioStreamFormat.getEncoding(); |
| |
| //$$ fb 2001-07-13: Bug 4391108 |
| if( (AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) || |
| (AudioFormat.Encoding.PCM_SIGNED.equals(encoding) |
| && bigendian != audioStreamFormat.isBigEndian()) ) { |
| |
| // plug in the transcoder to convert to PCM_SIGNED, bigendian |
| // NOTE: little endian AU is not common, so we're always converting |
| // to big endian unless the passed in audioFileFormat is little. |
| // $$fb this NOTE is superseded. We always write big endian au files, this is by far the standard. |
| codedAudioStream = AudioSystem.getAudioInputStream( new AudioFormat ( |
| AudioFormat.Encoding.PCM_SIGNED, |
| audioStreamFormat.getSampleRate(), |
| audioStreamFormat.getSampleSizeInBits(), |
| audioStreamFormat.getChannels(), |
| audioStreamFormat.getFrameSize(), |
| audioStreamFormat.getFrameRate(), |
| bigendian), |
| (AudioInputStream)audioStream ); |
| |
| |
| } |
| } |
| |
| baos = new ByteArrayOutputStream(); |
| dos = new DataOutputStream(baos); |
| |
| |
| if (bigendian) { |
| dos.writeInt(AuFileFormat.AU_SUN_MAGIC); |
| dos.writeInt(headerSize); |
| dos.writeInt((int)dataSizeInBytes); |
| dos.writeInt(encoding_local); |
| dos.writeInt(sampleRate); |
| dos.writeInt(channels); |
| } else { |
| dos.writeInt(AuFileFormat.AU_SUN_INV_MAGIC); |
| dos.writeInt(big2little(headerSize)); |
| dos.writeInt(big2little((int)dataSizeInBytes)); |
| dos.writeInt(big2little(encoding_local)); |
| dos.writeInt(big2little(sampleRate)); |
| dos.writeInt(big2little(channels)); |
| } |
| |
| // Now create a new InputStream from headerStream and the InputStream |
| // in audioStream |
| |
| dos.close(); |
| header = baos.toByteArray(); |
| headerStream = new ByteArrayInputStream( header ); |
| auStream = new SequenceInputStream(headerStream, |
| new NoCloseInputStream(codedAudioStream)); |
| |
| return auStream; |
| } |
| |
| private int writeAuFile(InputStream in, AuFileFormat auFileFormat, OutputStream out) throws IOException { |
| |
| int bytesRead = 0; |
| int bytesWritten = 0; |
| InputStream fileStream = getFileStream(auFileFormat, in); |
| byte buffer[] = new byte[bisBufferSize]; |
| int maxLength = auFileFormat.getByteLength(); |
| |
| while( (bytesRead = fileStream.read( buffer )) >= 0 ) { |
| if (maxLength>0) { |
| if( bytesRead < maxLength ) { |
| out.write( buffer, 0, (int)bytesRead ); |
| bytesWritten += bytesRead; |
| maxLength -= bytesRead; |
| } else { |
| out.write( buffer, 0, (int)maxLength ); |
| bytesWritten += maxLength; |
| maxLength = 0; |
| break; |
| } |
| } else { |
| out.write( buffer, 0, (int)bytesRead ); |
| bytesWritten += bytesRead; |
| } |
| } |
| |
| return bytesWritten; |
| } |
| |
| |
| } |
