J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2003 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.audio; |
| 27 | |
| 28 | import java.util.Hashtable; |
| 29 | import java.util.Vector; |
| 30 | import java.util.Enumeration; |
| 31 | import java.io.IOException; |
| 32 | import java.io.InputStream; |
| 33 | import java.io.BufferedInputStream; |
| 34 | import java.io.OutputStream; |
| 35 | import java.io.ByteArrayInputStream; |
| 36 | |
| 37 | import javax.sound.sampled.*; |
| 38 | import javax.sound.midi.*; |
| 39 | import com.sun.media.sound.DataPusher; |
| 40 | import com.sun.media.sound.Toolkit; |
| 41 | |
| 42 | /** |
| 43 | * This class provides an interface to the Headspace Audio engine through |
| 44 | * the Java Sound API. |
| 45 | * |
| 46 | * This class emulates systems with multiple audio channels, mixing |
| 47 | * multiple streams for the workstation's single-channel device. |
| 48 | * |
| 49 | * @see AudioData |
| 50 | * @see AudioDataStream |
| 51 | * @see AudioStream |
| 52 | * @see AudioStreamSequence |
| 53 | * @see ContinuousAudioDataStream |
| 54 | * @author David Rivas |
| 55 | * @author Kara Kytle |
| 56 | * @author Jan Borgersen |
| 57 | * @author Florian Bomers |
| 58 | */ |
| 59 | |
| 60 | public class |
| 61 | AudioDevice { |
| 62 | |
| 63 | private boolean DEBUG = false /*true*/ ; |
| 64 | |
| 65 | /** Hashtable of audio clips / input streams. */ |
| 66 | private Hashtable clipStreams; |
| 67 | |
| 68 | private Vector infos; |
| 69 | |
| 70 | /** Are we currently playing audio? */ |
| 71 | private boolean playing = false; |
| 72 | |
| 73 | /** Handle to the JS audio mixer. */ |
| 74 | private Mixer mixer = null; |
| 75 | |
| 76 | |
| 77 | |
| 78 | /** |
| 79 | * The default audio player. This audio player is initialized |
| 80 | * automatically. |
| 81 | */ |
| 82 | public static final AudioDevice device = new AudioDevice(); |
| 83 | |
| 84 | /** |
| 85 | * Create an AudioDevice instance. |
| 86 | */ |
| 87 | private AudioDevice() { |
| 88 | |
| 89 | clipStreams = new Hashtable(); |
| 90 | infos = new Vector(); |
| 91 | } |
| 92 | |
| 93 | |
| 94 | private synchronized void startSampled( AudioInputStream as, |
| 95 | InputStream in ) throws UnsupportedAudioFileException, |
| 96 | LineUnavailableException { |
| 97 | |
| 98 | Info info = null; |
| 99 | DataPusher datapusher = null; |
| 100 | DataLine.Info lineinfo = null; |
| 101 | SourceDataLine sourcedataline = null; |
| 102 | |
| 103 | // if ALAW or ULAW, we must convert.... |
| 104 | as = Toolkit.getPCMConvertedAudioInputStream(as); |
| 105 | |
| 106 | if( as==null ) { |
| 107 | // could not convert |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | lineinfo = new DataLine.Info(SourceDataLine.class, |
| 112 | as.getFormat()); |
| 113 | if( !(AudioSystem.isLineSupported(lineinfo))) { |
| 114 | return; |
| 115 | } |
| 116 | sourcedataline = (SourceDataLine)AudioSystem.getLine(lineinfo); |
| 117 | datapusher = new DataPusher(sourcedataline, as); |
| 118 | |
| 119 | info = new Info( null, in, datapusher ); |
| 120 | infos.addElement( info ); |
| 121 | |
| 122 | datapusher.start(); |
| 123 | } |
| 124 | |
| 125 | private synchronized void startMidi( InputStream bis, |
| 126 | InputStream in ) throws InvalidMidiDataException, |
| 127 | MidiUnavailableException { |
| 128 | |
| 129 | Sequencer sequencer = null; |
| 130 | Info info = null; |
| 131 | |
| 132 | sequencer = MidiSystem.getSequencer( ); |
| 133 | sequencer.open(); |
| 134 | try { |
| 135 | sequencer.setSequence( bis ); |
| 136 | } catch( IOException e ) { |
| 137 | throw new InvalidMidiDataException( e.getMessage() ); |
| 138 | } |
| 139 | |
| 140 | info = new Info( sequencer, in, null ); |
| 141 | |
| 142 | infos.addElement( info ); |
| 143 | |
| 144 | // fix for bug 4302884: Audio device is not released when AudioClip stops |
| 145 | sequencer.addMetaEventListener(info); |
| 146 | |
| 147 | sequencer.start(); |
| 148 | |
| 149 | } |
| 150 | |
| 151 | |
| 152 | |
| 153 | /** |
| 154 | * Open an audio channel. |
| 155 | */ |
| 156 | public synchronized void openChannel(InputStream in) { |
| 157 | |
| 158 | |
| 159 | if(DEBUG) { |
| 160 | System.out.println("AudioDevice: openChannel"); |
| 161 | System.out.println("input stream =" + in); |
| 162 | } |
| 163 | |
| 164 | Info info = null; |
| 165 | |
| 166 | // is this already playing? if so, then just return |
| 167 | for(int i=0; i<infos.size(); i++) { |
| 168 | info = (AudioDevice.Info)infos.elementAt(i); |
| 169 | if( info.in == in ) { |
| 170 | |
| 171 | return; |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | |
| 176 | AudioInputStream as = null; |
| 177 | |
| 178 | if( in instanceof AudioStream ) { |
| 179 | |
| 180 | if ( ((AudioStream)in).midiformat != null ) { |
| 181 | |
| 182 | // it's a midi file |
| 183 | try { |
| 184 | startMidi( ((AudioStream)in).stream, in ); |
| 185 | } catch (Exception e) { |
| 186 | return; |
| 187 | } |
| 188 | |
| 189 | |
| 190 | } else if( ((AudioStream)in).ais != null ) { |
| 191 | |
| 192 | // it's sampled audio |
| 193 | try { |
| 194 | startSampled( ((AudioStream)in).ais, in ); |
| 195 | } catch (Exception e) { |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | } |
| 200 | } else if (in instanceof AudioDataStream ) { |
| 201 | if (in instanceof ContinuousAudioDataStream) { |
| 202 | try { |
| 203 | AudioInputStream ais = new AudioInputStream(in, |
| 204 | ((AudioDataStream)in).getAudioData().format, |
| 205 | AudioSystem.NOT_SPECIFIED); |
| 206 | startSampled(ais, in ); |
| 207 | } catch (Exception e) { |
| 208 | return; |
| 209 | } |
| 210 | } |
| 211 | else { |
| 212 | try { |
| 213 | AudioInputStream ais = new AudioInputStream(in, |
| 214 | ((AudioDataStream)in).getAudioData().format, |
| 215 | ((AudioDataStream)in).getAudioData().buffer.length); |
| 216 | startSampled(ais, in ); |
| 217 | } catch (Exception e) { |
| 218 | return; |
| 219 | } |
| 220 | } |
| 221 | } else { |
| 222 | BufferedInputStream bis = new BufferedInputStream( in, 1024 ); |
| 223 | |
| 224 | try { |
| 225 | |
| 226 | try { |
| 227 | as = AudioSystem.getAudioInputStream(bis); |
| 228 | } catch(IOException ioe) { |
| 229 | return; |
| 230 | } |
| 231 | |
| 232 | startSampled( as, in ); |
| 233 | |
| 234 | } catch( UnsupportedAudioFileException e ) { |
| 235 | |
| 236 | try { |
| 237 | try { |
| 238 | MidiFileFormat mff = |
| 239 | MidiSystem.getMidiFileFormat( bis ); |
| 240 | } catch(IOException ioe1) { |
| 241 | return; |
| 242 | } |
| 243 | |
| 244 | startMidi( bis, in ); |
| 245 | |
| 246 | |
| 247 | } catch( InvalidMidiDataException e1 ) { |
| 248 | |
| 249 | // $$jb:08.01.99: adding this section to make some of our other |
| 250 | // legacy classes work..... |
| 251 | // not MIDI either, special case handling for all others |
| 252 | |
| 253 | AudioFormat defformat = new AudioFormat( AudioFormat.Encoding.ULAW, |
| 254 | 8000, 8, 1, 1, 8000, true ); |
| 255 | try { |
| 256 | AudioInputStream defaif = new AudioInputStream( bis, |
| 257 | defformat, AudioSystem.NOT_SPECIFIED); |
| 258 | startSampled( defaif, in ); |
| 259 | } catch (UnsupportedAudioFileException es) { |
| 260 | return; |
| 261 | } catch (LineUnavailableException es2) { |
| 262 | return; |
| 263 | } |
| 264 | |
| 265 | } catch( MidiUnavailableException e2 ) { |
| 266 | |
| 267 | // could not open sequence |
| 268 | return; |
| 269 | } |
| 270 | |
| 271 | } catch( LineUnavailableException e ) { |
| 272 | |
| 273 | return; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | // don't forget adjust for a new stream. |
| 278 | notify(); |
| 279 | } |
| 280 | |
| 281 | |
| 282 | /** |
| 283 | * Close an audio channel. |
| 284 | */ |
| 285 | public synchronized void closeChannel(InputStream in) { |
| 286 | |
| 287 | if(DEBUG) { |
| 288 | System.out.println("AudioDevice.closeChannel"); |
| 289 | } |
| 290 | |
| 291 | if (in == null) return; // can't go anywhere here! |
| 292 | |
| 293 | Info info; |
| 294 | |
| 295 | for(int i=0; i<infos.size(); i++) { |
| 296 | |
| 297 | info = (AudioDevice.Info)infos.elementAt(i); |
| 298 | |
| 299 | if( info.in == in ) { |
| 300 | |
| 301 | if( info.sequencer != null ) { |
| 302 | |
| 303 | info.sequencer.stop(); |
| 304 | //info.sequencer.close(); |
| 305 | infos.removeElement( info ); |
| 306 | |
| 307 | } else if( info.datapusher != null ) { |
| 308 | |
| 309 | info.datapusher.stop(); |
| 310 | infos.removeElement( info ); |
| 311 | } |
| 312 | } |
| 313 | } |
| 314 | notify(); |
| 315 | } |
| 316 | |
| 317 | |
| 318 | /** |
| 319 | * Open the device (done automatically) |
| 320 | */ |
| 321 | public synchronized void open() { |
| 322 | |
| 323 | // $$jb: 06.24.99: This is done on a per-stream |
| 324 | // basis using the new JS API now. |
| 325 | } |
| 326 | |
| 327 | |
| 328 | /** |
| 329 | * Close the device (done automatically) |
| 330 | */ |
| 331 | public synchronized void close() { |
| 332 | |
| 333 | // $$jb: 06.24.99: This is done on a per-stream |
| 334 | // basis using the new JS API now. |
| 335 | |
| 336 | } |
| 337 | |
| 338 | |
| 339 | /** |
| 340 | * Play open audio stream(s) |
| 341 | */ |
| 342 | public void play() { |
| 343 | |
| 344 | // $$jb: 06.24.99: Holdover from old architechture ... |
| 345 | // we now open/close the devices as needed on a per-stream |
| 346 | // basis using the JavaSound API. |
| 347 | |
| 348 | if (DEBUG) { |
| 349 | System.out.println("exiting play()"); |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | /** |
| 354 | * Close streams |
| 355 | */ |
| 356 | public synchronized void closeStreams() { |
| 357 | |
| 358 | Info info; |
| 359 | |
| 360 | for(int i=0; i<infos.size(); i++) { |
| 361 | |
| 362 | info = (AudioDevice.Info)infos.elementAt(i); |
| 363 | |
| 364 | if( info.sequencer != null ) { |
| 365 | |
| 366 | info.sequencer.stop(); |
| 367 | info.sequencer.close(); |
| 368 | infos.removeElement( info ); |
| 369 | |
| 370 | } else if( info.datapusher != null ) { |
| 371 | |
| 372 | info.datapusher.stop(); |
| 373 | infos.removeElement( info ); |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | |
| 378 | if (DEBUG) { |
| 379 | System.err.println("Audio Device: Streams all closed."); |
| 380 | } |
| 381 | // Empty the hash table. |
| 382 | clipStreams = new Hashtable(); |
| 383 | infos = new Vector(); |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * Number of channels currently open. |
| 388 | */ |
| 389 | public int openChannels() { |
| 390 | return infos.size(); |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * Make the debug info print out. |
| 395 | */ |
| 396 | void setVerbose(boolean v) { |
| 397 | DEBUG = v; |
| 398 | } |
| 399 | |
| 400 | |
| 401 | |
| 402 | |
| 403 | |
| 404 | |
| 405 | // INFO CLASS |
| 406 | |
| 407 | class Info implements MetaEventListener { |
| 408 | |
| 409 | Sequencer sequencer; |
| 410 | InputStream in; |
| 411 | DataPusher datapusher; |
| 412 | |
| 413 | Info( Sequencer sequencer, InputStream in, DataPusher datapusher ) { |
| 414 | |
| 415 | this.sequencer = sequencer; |
| 416 | this.in = in; |
| 417 | this.datapusher = datapusher; |
| 418 | } |
| 419 | |
| 420 | public void meta(MetaMessage event) { |
| 421 | if (event.getType() == 47 && sequencer != null) { |
| 422 | sequencer.close(); |
| 423 | } |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | |
| 428 | |
| 429 | } |