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| 1 | /* | ||
| 2 | * Copyright (c) 2007, 2010, 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 | package com.sun.media.sound; | ||
| 26 | |||
| 27 | import java.io.BufferedInputStream; | ||
| 28 | import java.io.File; | ||
| 29 | import java.io.FileInputStream; | ||
| 30 | import java.io.IOException; | ||
| 31 | import java.io.InputStream; | ||
| 32 | import java.net.URL; | ||
| 33 | import java.util.HashMap; | ||
| 34 | import java.util.Map; | ||
| 35 | |||
| 36 | import javax.sound.sampled.AudioFileFormat; | ||
| 37 | import javax.sound.sampled.AudioFormat; | ||
| 38 | import javax.sound.sampled.AudioInputStream; | ||
| 39 | import javax.sound.sampled.AudioSystem; | ||
| 40 | import javax.sound.sampled.UnsupportedAudioFileException; | ||
| 41 | import javax.sound.sampled.AudioFormat.Encoding; | ||
| 42 | import javax.sound.sampled.spi.AudioFileReader; | ||
| 43 | |||
| 44 | /** | ||
| 45 | * WAVE file reader for files using format WAVE_FORMAT_EXTENSIBLE (0xFFFE). | ||
| 46 | * | ||
| 47 | * @author Karl Helgason | ||
| 48 | */ | ||
| 49 | public class WaveExtensibleFileReader extends AudioFileReader { | ||
| 50 | |||
| 51 | static private class GUID { | ||
| 52 | long i1; | ||
| 53 | |||
| 54 | int s1; | ||
| 55 | |||
| 56 | int s2; | ||
| 57 | |||
| 58 | int x1; | ||
| 59 | |||
| 60 | int x2; | ||
| 61 | |||
| 62 | int x3; | ||
| 63 | |||
| 64 | int x4; | ||
| 65 | |||
| 66 | int x5; | ||
| 67 | |||
| 68 | int x6; | ||
| 69 | |||
| 70 | int x7; | ||
| 71 | |||
| 72 | int x8; | ||
| 73 | |||
| 74 | private GUID() { | ||
| 75 | } | ||
| 76 | |||
| 77 | public GUID(long i1, int s1, int s2, int x1, int x2, int x3, int x4, | ||
| 78 | int x5, int x6, int x7, int x8) { | ||
| 79 | this.i1 = i1; | ||
| 80 | this.s1 = s1; | ||
| 81 | this.s2 = s2; | ||
| 82 | this.x1 = x1; | ||
| 83 | this.x2 = x2; | ||
| 84 | this.x3 = x3; | ||
| 85 | this.x4 = x4; | ||
| 86 | this.x5 = x5; | ||
| 87 | this.x6 = x6; | ||
| 88 | this.x7 = x7; | ||
| 89 | this.x8 = x8; | ||
| 90 | } | ||
| 91 | |||
| 92 | public static GUID read(RIFFReader riff) throws IOException { | ||
| 93 | GUID d = new GUID(); | ||
| 94 | d.i1 = riff.readUnsignedInt(); | ||
| 95 | d.s1 = riff.readUnsignedShort(); | ||
| 96 | d.s2 = riff.readUnsignedShort(); | ||
| 97 | d.x1 = riff.readUnsignedByte(); | ||
| 98 | d.x2 = riff.readUnsignedByte(); | ||
| 99 | d.x3 = riff.readUnsignedByte(); | ||
| 100 | d.x4 = riff.readUnsignedByte(); | ||
| 101 | d.x5 = riff.readUnsignedByte(); | ||
| 102 | d.x6 = riff.readUnsignedByte(); | ||
| 103 | d.x7 = riff.readUnsignedByte(); | ||
| 104 | d.x8 = riff.readUnsignedByte(); | ||
| 105 | return d; | ||
| 106 | } | ||
| 107 | |||
| 108 | public int hashCode() { | ||
| 109 | return (int) i1; | ||
| 110 | } | ||
| 111 | |||
| 112 | public boolean equals(Object obj) { | ||
| 113 | if (!(obj instanceof GUID)) | ||
| 114 | return false; | ||
| 115 | GUID t = (GUID) obj; | ||
| 116 | if (i1 != t.i1) | ||
| 117 | return false; | ||
| 118 | if (s1 != t.s1) | ||
| 119 | return false; | ||
| 120 | if (s2 != t.s2) | ||
| 121 | return false; | ||
| 122 | if (x1 != t.x1) | ||
| 123 | return false; | ||
| 124 | if (x2 != t.x2) | ||
| 125 | return false; | ||
| 126 | if (x3 != t.x3) | ||
| 127 | return false; | ||
| 128 | if (x4 != t.x4) | ||
| 129 | return false; | ||
| 130 | if (x5 != t.x5) | ||
| 131 | return false; | ||
| 132 | if (x6 != t.x6) | ||
| 133 | return false; | ||
| 134 | if (x7 != t.x7) | ||
| 135 | return false; | ||
| 136 | if (x8 != t.x8) | ||
| 137 | return false; | ||
| 138 | return true; | ||
| 139 | } | ||
| 140 | |||
| 141 | } | ||
| 142 | |||
| 143 | private static String[] channelnames = { "FL", "FR", "FC", "LF", | ||
| 144 | "BL", | ||
| 145 | "BR", // 5.1 | ||
| 146 | "FLC", "FLR", "BC", "SL", "SR", "TC", "TFL", "TFC", "TFR", "TBL", | ||
| 147 | "TBC", "TBR" }; | ||
| 148 | |||
| 149 | private static String[] allchannelnames = { "w1", "w2", "w3", "w4", "w5", | ||
| 150 | "w6", "w7", "w8", "w9", "w10", "w11", "w12", "w13", "w14", "w15", | ||
| 151 | "w16", "w17", "w18", "w19", "w20", "w21", "w22", "w23", "w24", | ||
| 152 | "w25", "w26", "w27", "w28", "w29", "w30", "w31", "w32", "w33", | ||
| 153 | "w34", "w35", "w36", "w37", "w38", "w39", "w40", "w41", "w42", | ||
| 154 | "w43", "w44", "w45", "w46", "w47", "w48", "w49", "w50", "w51", | ||
| 155 | "w52", "w53", "w54", "w55", "w56", "w57", "w58", "w59", "w60", | ||
| 156 | "w61", "w62", "w63", "w64" }; | ||
| 157 | |||
| 158 | private static GUID SUBTYPE_PCM = new GUID(0x00000001, 0x0000, 0x0010, | ||
| 159 | 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); | ||
| 160 | |||
| 161 | private static GUID SUBTYPE_IEEE_FLOAT = new GUID(0x00000003, 0x0000, | ||
| 162 | 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); | ||
| 163 | |||
| 164 | private String decodeChannelMask(long channelmask) { | ||
| 165 | StringBuffer sb = new StringBuffer(); | ||
| 166 | long m = 1; | ||
| 167 | for (int i = 0; i < allchannelnames.length; i++) { | ||
| 168 | if ((channelmask & m) != 0L) { | ||
| 169 | if (i < channelnames.length) { | ||
| 170 | sb.append(channelnames[i] + " "); | ||
| 171 | } else { | ||
| 172 | sb.append(allchannelnames[i] + " "); | ||
| 173 | } | ||
| 174 | } | ||
| 175 | m *= 2L; | ||
| 176 | } | ||
| 177 | if (sb.length() == 0) | ||
| 178 | return null; | ||
| 179 | return sb.substring(0, sb.length() - 1); | ||
| 180 | |||
| 181 | } | ||
| 182 | |||
| 183 | public AudioFileFormat getAudioFileFormat(InputStream stream) | ||
| 184 | throws UnsupportedAudioFileException, IOException { | ||
| 185 | |||
| 186 | stream.mark(200); | ||
| 187 | AudioFileFormat format; | ||
| 188 | try { | ||
| 189 | format = internal_getAudioFileFormat(stream); | ||
| 190 | } finally { | ||
| 191 | stream.reset(); | ||
| 192 | } | ||
| 193 | return format; | ||
| 194 | } | ||
| 195 | |||
| 196 | private AudioFileFormat internal_getAudioFileFormat(InputStream stream) | ||
| 197 | throws UnsupportedAudioFileException, IOException { | ||
| 198 | |||
| 199 | RIFFReader riffiterator = new RIFFReader(stream); | ||
| 200 | if (!riffiterator.getFormat().equals("RIFF")) | ||
| 201 | throw new UnsupportedAudioFileException(); | ||
| 202 | if (!riffiterator.getType().equals("WAVE")) | ||
| 203 | throw new UnsupportedAudioFileException(); | ||
| 204 | |||
| 205 | boolean fmt_found = false; | ||
| 206 | boolean data_found = false; | ||
| 207 | |||
| 208 | int channels = 1; | ||
| 209 | long samplerate = 1; | ||
| 210 | // long framerate = 1; | ||
| 211 | int framesize = 1; | ||
| 212 | int bits = 1; | ||
| 213 | int validBitsPerSample = 1; | ||
| 214 | long channelMask = 0; | ||
| 215 | GUID subFormat = null; | ||
| 216 | |||
| 217 | while (riffiterator.hasNextChunk()) { | ||
| 218 | RIFFReader chunk = riffiterator.nextChunk(); | ||
| 219 | |||
| 220 | if (chunk.getFormat().equals("fmt ")) { | ||
| 221 | fmt_found = true; | ||
| 222 | |||
| 223 | int format = chunk.readUnsignedShort(); | ||
| 224 | if (format != 0xFFFE) | ||
| 225 | throw new UnsupportedAudioFileException(); // WAVE_FORMAT_EXTENSIBLE | ||
| 226 | // only | ||
| 227 | channels = chunk.readUnsignedShort(); | ||
| 228 | samplerate = chunk.readUnsignedInt(); | ||
| 229 | /* framerate = */chunk.readUnsignedInt(); | ||
| 230 | framesize = chunk.readUnsignedShort(); | ||
| 231 | bits = chunk.readUnsignedShort(); | ||
| 232 | int cbSize = chunk.readUnsignedShort(); | ||
| 233 | if (cbSize != 22) | ||
| 234 | throw new UnsupportedAudioFileException(); | ||
| 235 | validBitsPerSample = chunk.readUnsignedShort(); | ||
| 236 | if (validBitsPerSample > bits) | ||
| 237 | throw new UnsupportedAudioFileException(); | ||
| 238 | channelMask = chunk.readUnsignedInt(); | ||
| 239 | subFormat = GUID.read(chunk); | ||
| 240 | |||
| 241 | } | ||
| 242 | if (chunk.getFormat().equals("data")) { | ||
| 243 | data_found = true; | ||
| 244 | break; | ||
| 245 | } | ||
| 246 | } | ||
| 247 | |||
| 248 | if (!fmt_found) | ||
| 249 | throw new UnsupportedAudioFileException(); | ||
| 250 | if (!data_found) | ||
| 251 | throw new UnsupportedAudioFileException(); | ||
| 252 | |||
| 253 | Map<String, Object> p = new HashMap<String, Object>(); | ||
| 254 | String s_channelmask = decodeChannelMask(channelMask); | ||
| 255 | if (s_channelmask != null) | ||
| 256 | p.put("channelOrder", s_channelmask); | ||
| 257 | if (channelMask != 0) | ||
| 258 | p.put("channelMask", channelMask); | ||
| 259 | // validBitsPerSample is only informational for PCM data, | ||
| 260 | // data is still encode according to SampleSizeInBits. | ||
| 261 | p.put("validBitsPerSample", validBitsPerSample); | ||
| 262 | |||
| 263 | AudioFormat audioformat = null; | ||
| 264 | if (subFormat.equals(SUBTYPE_PCM)) { | ||
| 265 | if (bits == 8) { | ||
| 266 | audioformat = new AudioFormat(Encoding.PCM_UNSIGNED, | ||
| 267 | samplerate, bits, channels, framesize, samplerate, | ||
| 268 | false, p); | ||
| 269 | } else { | ||
| 270 | audioformat = new AudioFormat(Encoding.PCM_SIGNED, samplerate, | ||
| 271 | bits, channels, framesize, samplerate, false, p); | ||
| 272 | } | ||
| 273 | } else if (subFormat.equals(SUBTYPE_IEEE_FLOAT)) { | ||
| 274 | audioformat = new AudioFormat(Encoding.PCM_FLOAT, | ||
| 275 | samplerate, bits, channels, framesize, samplerate, false, p); | ||
| 276 | } else | ||
| 277 | throw new UnsupportedAudioFileException(); | ||
| 278 | |||
| 279 | AudioFileFormat fileformat = new AudioFileFormat( | ||
| 280 | AudioFileFormat.Type.WAVE, audioformat, | ||
| 281 | AudioSystem.NOT_SPECIFIED); | ||
| 282 | return fileformat; | ||
| 283 | } | ||
| 284 | |||
| 285 | public AudioInputStream getAudioInputStream(InputStream stream) | ||
| 286 | throws UnsupportedAudioFileException, IOException { | ||
| 287 | |||
| 288 | AudioFileFormat format = getAudioFileFormat(stream); | ||
| 289 | RIFFReader riffiterator = new RIFFReader(stream); | ||
| 290 | if (!riffiterator.getFormat().equals("RIFF")) | ||
| 291 | throw new UnsupportedAudioFileException(); | ||
| 292 | if (!riffiterator.getType().equals("WAVE")) | ||
| 293 | throw new UnsupportedAudioFileException(); | ||
| 294 | while (riffiterator.hasNextChunk()) { | ||
| 295 | RIFFReader chunk = riffiterator.nextChunk(); | ||
| 296 | if (chunk.getFormat().equals("data")) { | ||
| 297 | return new AudioInputStream(chunk, format.getFormat(), chunk | ||
| 298 | .getSize()); | ||
| 299 | } | ||
| 300 | } | ||
| 301 | throw new UnsupportedAudioFileException(); | ||
| 302 | } | ||
| 303 | |||
| 304 | public AudioFileFormat getAudioFileFormat(URL url) | ||
| 305 | throws UnsupportedAudioFileException, IOException { | ||
| 306 | InputStream stream = url.openStream(); | ||
| 307 | AudioFileFormat format; | ||
| 308 | try { | ||
| 309 | format = getAudioFileFormat(new BufferedInputStream(stream)); | ||
| 310 | } finally { | ||
| 311 | stream.close(); | ||
| 312 | } | ||
| 313 | return format; | ||
| 314 | } | ||
| 315 | |||
| 316 | public AudioFileFormat getAudioFileFormat(File file) | ||
| 317 | throws UnsupportedAudioFileException, IOException { | ||
| 318 | InputStream stream = new FileInputStream(file); | ||
| 319 | AudioFileFormat format; | ||
| 320 | try { | ||
| 321 | format = getAudioFileFormat(new BufferedInputStream(stream)); | ||
| 322 | } finally { | ||
| 323 | stream.close(); | ||
| 324 | } | ||
| 325 | return format; | ||
| 326 | } | ||
| 327 | |||
| 328 | public AudioInputStream getAudioInputStream(URL url) | ||
| 329 | throws UnsupportedAudioFileException, IOException { | ||
| 330 | return getAudioInputStream(new BufferedInputStream(url.openStream())); | ||
| 331 | } | ||
| 332 | |||
| 333 | public AudioInputStream getAudioInputStream(File file) | ||
| 334 | throws UnsupportedAudioFileException, IOException { | ||
| 335 | return getAudioInputStream(new BufferedInputStream(new FileInputStream( | ||
| 336 | file))); | ||
| 337 | } | ||
| 338 | |||
| 339 | } | ||