1 /* 2 * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.media.sound; 27 28 import java.io.BufferedOutputStream; 29 import java.io.ByteArrayInputStream; 30 import java.io.ByteArrayOutputStream; 31 import java.io.DataOutputStream; 32 import java.io.File; 33 import java.io.FileOutputStream; 34 import java.io.IOException; 35 import java.io.InputStream; 36 import java.io.OutputStream; 37 import java.io.RandomAccessFile; 38 import java.io.SequenceInputStream; 39 import java.util.Objects; 40 41 import javax.sound.sampled.AudioFileFormat; 42 import javax.sound.sampled.AudioFileFormat.Type; 43 import javax.sound.sampled.AudioFormat; 44 import javax.sound.sampled.AudioInputStream; 45 import javax.sound.sampled.AudioSystem; 46 47 /** 48 * AU file writer. 49 * 50 * @author Jan Borgersen 51 */ 52 public final class AuFileWriter extends SunFileWriter { 53 54 /** 55 * Value for length field if length is not known. 56 */ 57 private static final int UNKNOWN_SIZE = -1; 58 59 /** 60 * Constructs a new AuFileWriter object. 61 */ 62 public AuFileWriter() { 63 super(new Type[]{Type.AU}); 64 } 65 66 @Override 67 public Type[] getAudioFileTypes(AudioInputStream stream) { 68 69 Type[] filetypes = new Type[types.length]; 70 System.arraycopy(types, 0, filetypes, 0, types.length); 71 72 // make sure we can write this stream 73 AudioFormat format = stream.getFormat(); 74 AudioFormat.Encoding encoding = format.getEncoding(); 75 76 if (AudioFormat.Encoding.ALAW.equals(encoding) 77 || AudioFormat.Encoding.ULAW.equals(encoding) 78 || AudioFormat.Encoding.PCM_SIGNED.equals(encoding) 79 || AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding) 80 || AudioFormat.Encoding.PCM_FLOAT.equals(encoding)) { 81 return filetypes; 82 } 83 84 return new Type[0]; 85 } 86 87 @Override 88 public int write(AudioInputStream stream, Type fileType, OutputStream out) throws IOException { 89 Objects.requireNonNull(stream); 90 Objects.requireNonNull(fileType); 91 Objects.requireNonNull(out); 92 93 // we must know the total data length to calculate the file length 94 //$$fb 2001-07-13: fix for bug 4351296: do not throw an exception 95 //if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) { 96 // throw new IOException("stream length not specified"); 97 //} 98 99 // throws IllegalArgumentException if not supported 100 AuFileFormat auFileFormat = (AuFileFormat)getAudioFileFormat(fileType, stream); 101 return writeAuFile(stream, auFileFormat, out); 102 } 103 104 @Override 105 public int write(AudioInputStream stream, Type fileType, File out) throws IOException { 106 Objects.requireNonNull(stream); 107 Objects.requireNonNull(fileType); 108 Objects.requireNonNull(out); 109 110 // throws IllegalArgumentException if not supported 111 AuFileFormat auFileFormat = (AuFileFormat)getAudioFileFormat(fileType, stream); 112 113 // first write the file without worrying about length fields 114 final int bytesWritten; 115 try (final FileOutputStream fos = new FileOutputStream(out); 116 final BufferedOutputStream bos = new BufferedOutputStream(fos)) { 117 bytesWritten = writeAuFile(stream, auFileFormat, bos); 118 } 119 120 // now, if length fields were not specified, calculate them, 121 // open as a random access file, write the appropriate fields, 122 // close again.... 123 if( auFileFormat.getByteLength()== AudioSystem.NOT_SPECIFIED ) { 124 125 // $$kk: 10.22.99: jan: please either implement this or throw an exception! 126 // $$fb: 2001-07-13: done. Fixes Bug 4479981 127 try (final RandomAccessFile raf = new RandomAccessFile(out, "rw")) { 128 if (raf.length() <= 0x7FFFFFFFl) { 129 // skip AU magic and data offset field 130 raf.skipBytes(8); 131 raf.writeInt(bytesWritten - AuFileFormat.AU_HEADERSIZE); 132 // that's all 133 } 134 } 135 } 136 137 return bytesWritten; 138 } 139 140 // ------------------------------------------------------------- 141 142 /** 143 * Returns the AudioFileFormat describing the file that will be written from this AudioInputStream. 144 * Throws IllegalArgumentException if not supported. 145 */ 146 private AudioFileFormat getAudioFileFormat(Type type, AudioInputStream stream) { 147 if (!isFileTypeSupported(type, stream)) { 148 throw new IllegalArgumentException("File type " + type + " not supported."); 149 } 150 151 AudioFormat streamFormat = stream.getFormat(); 152 AudioFormat.Encoding encoding = streamFormat.getEncoding(); 153 154 if (AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) { 155 encoding = AudioFormat.Encoding.PCM_SIGNED; 156 } 157 158 // We always write big endian au files, this is by far the standard 159 AudioFormat format = new AudioFormat(encoding, 160 streamFormat.getSampleRate(), 161 streamFormat.getSampleSizeInBits(), 162 streamFormat.getChannels(), 163 streamFormat.getFrameSize(), 164 streamFormat.getFrameRate(), true); 165 166 int fileSize; 167 if (stream.getFrameLength() != AudioSystem.NOT_SPECIFIED) { 168 fileSize = (int)stream.getFrameLength()*streamFormat.getFrameSize() + AuFileFormat.AU_HEADERSIZE; 169 } else { 170 fileSize = AudioSystem.NOT_SPECIFIED; 171 } 172 173 return new AuFileFormat(Type.AU, fileSize, format, 174 (int) stream.getFrameLength()); 175 } 176 177 private InputStream getFileStream(AuFileFormat auFileFormat, AudioInputStream audioStream) throws IOException { 178 179 // private method ... assumes auFileFormat is a supported file type 180 181 AudioFormat format = auFileFormat.getFormat(); 182 183 int headerSize = AuFileFormat.AU_HEADERSIZE; 184 long dataSize = auFileFormat.getFrameLength(); 185 //$$fb fix for Bug 4351296 186 //int dataSizeInBytes = dataSize * format.getFrameSize(); 187 long dataSizeInBytes = (dataSize==AudioSystem.NOT_SPECIFIED)?UNKNOWN_SIZE:dataSize * format.getFrameSize(); 188 if (dataSizeInBytes>0x7FFFFFFFl) { 189 dataSizeInBytes=UNKNOWN_SIZE; 190 } 191 int auType = auFileFormat.getAuType(); 192 int sampleRate = (int)format.getSampleRate(); 193 int channels = format.getChannels(); 194 195 // if we need to do any format conversion, we do it here. 196 //$$ fb 2001-07-13: Bug 4391108 197 audioStream = AudioSystem.getAudioInputStream(format, audioStream); 198 199 final byte[] header; 200 try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); 201 DataOutputStream dos = new DataOutputStream(baos)) { 202 dos.writeInt(AuFileFormat.AU_SUN_MAGIC); 203 dos.writeInt(headerSize); 204 dos.writeInt((int) dataSizeInBytes); 205 dos.writeInt(auType); 206 dos.writeInt(sampleRate); 207 dos.writeInt(channels); 208 header = baos.toByteArray(); 209 } 210 // Now create a new InputStream from headerStream and the InputStream 211 // in audioStream 212 return new SequenceInputStream(new ByteArrayInputStream(header), 213 new NoCloseInputStream(audioStream)); 214 } 215 216 private int writeAuFile(AudioInputStream in, AuFileFormat auFileFormat, 217 OutputStream out) throws IOException { 218 219 int bytesRead = 0; 220 int bytesWritten = 0; 221 InputStream fileStream = getFileStream(auFileFormat, in); 222 byte buffer[] = new byte[bisBufferSize]; 223 int maxLength = auFileFormat.getByteLength(); 224 225 while( (bytesRead = fileStream.read( buffer )) >= 0 ) { 226 if (maxLength>0) { 227 if( bytesRead < maxLength ) { 228 out.write( buffer, 0, bytesRead ); 229 bytesWritten += bytesRead; 230 maxLength -= bytesRead; 231 } else { 232 out.write( buffer, 0, maxLength ); 233 bytesWritten += maxLength; 234 maxLength = 0; 235 break; 236 } 237 } else { 238 out.write( buffer, 0, bytesRead ); 239 bytesWritten += bytesRead; 240 } 241 } 242 243 return bytesWritten; 244 } 245 }