MediaPlayer.java revision 9d5b8368d7c9a76d7136f0fb9e3dc93fef5791eb
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.media; 18 19import android.annotation.IntDef; 20import android.annotation.NonNull; 21import android.annotation.Nullable; 22import android.app.ActivityThread; 23import android.content.ContentProvider; 24import android.content.ContentResolver; 25import android.content.Context; 26import android.content.res.AssetFileDescriptor; 27import android.net.Uri; 28import android.os.Handler; 29import android.os.HandlerThread; 30import android.os.IBinder; 31import android.os.Looper; 32import android.os.Message; 33import android.os.Parcel; 34import android.os.Parcelable; 35import android.os.Process; 36import android.os.PowerManager; 37import android.os.SystemProperties; 38import android.provider.Settings; 39import android.system.ErrnoException; 40import android.system.OsConstants; 41import android.util.Log; 42import android.util.Pair; 43import android.view.Surface; 44import android.view.SurfaceHolder; 45import android.widget.VideoView; 46import android.graphics.SurfaceTexture; 47import android.media.AudioManager; 48import android.media.MediaFormat; 49import android.media.MediaTimeProvider; 50import android.media.PlaybackParams; 51import android.media.SubtitleController; 52import android.media.SubtitleController.Anchor; 53import android.media.SubtitleData; 54import android.media.SubtitleTrack.RenderingWidget; 55import android.media.SyncParams; 56 57import com.android.internal.util.Preconditions; 58 59import libcore.io.IoBridge; 60import libcore.io.Libcore; 61 62import java.io.ByteArrayOutputStream; 63import java.io.File; 64import java.io.FileDescriptor; 65import java.io.FileInputStream; 66import java.io.IOException; 67import java.io.InputStream; 68import java.lang.Runnable; 69import java.lang.annotation.Retention; 70import java.lang.annotation.RetentionPolicy; 71import java.net.InetSocketAddress; 72import java.util.BitSet; 73import java.util.Map; 74import java.util.Scanner; 75import java.util.Set; 76import java.util.Vector; 77import java.lang.ref.WeakReference; 78 79/** 80 * MediaPlayer class can be used to control playback 81 * of audio/video files and streams. An example on how to use the methods in 82 * this class can be found in {@link android.widget.VideoView}. 83 * 84 * <p>Topics covered here are: 85 * <ol> 86 * <li><a href="#StateDiagram">State Diagram</a> 87 * <li><a href="#Valid_and_Invalid_States">Valid and Invalid States</a> 88 * <li><a href="#Permissions">Permissions</a> 89 * <li><a href="#Callbacks">Register informational and error callbacks</a> 90 * </ol> 91 * 92 * <div class="special reference"> 93 * <h3>Developer Guides</h3> 94 * <p>For more information about how to use MediaPlayer, read the 95 * <a href="{@docRoot}guide/topics/media/mediaplayer.html">Media Playback</a> developer guide.</p> 96 * </div> 97 * 98 * <a name="StateDiagram"></a> 99 * <h3>State Diagram</h3> 100 * 101 * <p>Playback control of audio/video files and streams is managed as a state 102 * machine. The following diagram shows the life cycle and the states of a 103 * MediaPlayer object driven by the supported playback control operations. 104 * The ovals represent the states a MediaPlayer object may reside 105 * in. The arcs represent the playback control operations that drive the object 106 * state transition. There are two types of arcs. The arcs with a single arrow 107 * head represent synchronous method calls, while those with 108 * a double arrow head represent asynchronous method calls.</p> 109 * 110 * <p><img src="../../../images/mediaplayer_state_diagram.gif" 111 * alt="MediaPlayer State diagram" 112 * border="0" /></p> 113 * 114 * <p>From this state diagram, one can see that a MediaPlayer object has the 115 * following states:</p> 116 * <ul> 117 * <li>When a MediaPlayer object is just created using <code>new</code> or 118 * after {@link #reset()} is called, it is in the <em>Idle</em> state; and after 119 * {@link #release()} is called, it is in the <em>End</em> state. Between these 120 * two states is the life cycle of the MediaPlayer object. 121 * <ul> 122 * <li>There is a subtle but important difference between a newly constructed 123 * MediaPlayer object and the MediaPlayer object after {@link #reset()} 124 * is called. It is a programming error to invoke methods such 125 * as {@link #getCurrentPosition()}, 126 * {@link #getDuration()}, {@link #getVideoHeight()}, 127 * {@link #getVideoWidth()}, {@link #setAudioStreamType(int)}, 128 * {@link #setLooping(boolean)}, 129 * {@link #setVolume(float, float)}, {@link #pause()}, {@link #start()}, 130 * {@link #stop()}, {@link #seekTo(int)}, {@link #prepare()} or 131 * {@link #prepareAsync()} in the <em>Idle</em> state for both cases. If any of these 132 * methods is called right after a MediaPlayer object is constructed, 133 * the user supplied callback method OnErrorListener.onError() won't be 134 * called by the internal player engine and the object state remains 135 * unchanged; but if these methods are called right after {@link #reset()}, 136 * the user supplied callback method OnErrorListener.onError() will be 137 * invoked by the internal player engine and the object will be 138 * transfered to the <em>Error</em> state. </li> 139 * <li>It is also recommended that once 140 * a MediaPlayer object is no longer being used, call {@link #release()} immediately 141 * so that resources used by the internal player engine associated with the 142 * MediaPlayer object can be released immediately. Resource may include 143 * singleton resources such as hardware acceleration components and 144 * failure to call {@link #release()} may cause subsequent instances of 145 * MediaPlayer objects to fallback to software implementations or fail 146 * altogether. Once the MediaPlayer 147 * object is in the <em>End</em> state, it can no longer be used and 148 * there is no way to bring it back to any other state. </li> 149 * <li>Furthermore, 150 * the MediaPlayer objects created using <code>new</code> is in the 151 * <em>Idle</em> state, while those created with one 152 * of the overloaded convenient <code>create</code> methods are <em>NOT</em> 153 * in the <em>Idle</em> state. In fact, the objects are in the <em>Prepared</em> 154 * state if the creation using <code>create</code> method is successful. 155 * </li> 156 * </ul> 157 * </li> 158 * <li>In general, some playback control operation may fail due to various 159 * reasons, such as unsupported audio/video format, poorly interleaved 160 * audio/video, resolution too high, streaming timeout, and the like. 161 * Thus, error reporting and recovery is an important concern under 162 * these circumstances. Sometimes, due to programming errors, invoking a playback 163 * control operation in an invalid state may also occur. Under all these 164 * error conditions, the internal player engine invokes a user supplied 165 * OnErrorListener.onError() method if an OnErrorListener has been 166 * registered beforehand via 167 * {@link #setOnErrorListener(android.media.MediaPlayer.OnErrorListener)}. 168 * <ul> 169 * <li>It is important to note that once an error occurs, the 170 * MediaPlayer object enters the <em>Error</em> state (except as noted 171 * above), even if an error listener has not been registered by the application.</li> 172 * <li>In order to reuse a MediaPlayer object that is in the <em> 173 * Error</em> state and recover from the error, 174 * {@link #reset()} can be called to restore the object to its <em>Idle</em> 175 * state.</li> 176 * <li>It is good programming practice to have your application 177 * register a OnErrorListener to look out for error notifications from 178 * the internal player engine.</li> 179 * <li>IllegalStateException is 180 * thrown to prevent programming errors such as calling {@link #prepare()}, 181 * {@link #prepareAsync()}, or one of the overloaded <code>setDataSource 182 * </code> methods in an invalid state. </li> 183 * </ul> 184 * </li> 185 * <li>Calling 186 * {@link #setDataSource(FileDescriptor)}, or 187 * {@link #setDataSource(String)}, or 188 * {@link #setDataSource(Context, Uri)}, or 189 * {@link #setDataSource(FileDescriptor, long, long)}, or 190 * {@link #setDataSource(MediaDataSource)} transfers a 191 * MediaPlayer object in the <em>Idle</em> state to the 192 * <em>Initialized</em> state. 193 * <ul> 194 * <li>An IllegalStateException is thrown if 195 * setDataSource() is called in any other state.</li> 196 * <li>It is good programming 197 * practice to always look out for <code>IllegalArgumentException</code> 198 * and <code>IOException</code> that may be thrown from the overloaded 199 * <code>setDataSource</code> methods.</li> 200 * </ul> 201 * </li> 202 * <li>A MediaPlayer object must first enter the <em>Prepared</em> state 203 * before playback can be started. 204 * <ul> 205 * <li>There are two ways (synchronous vs. 206 * asynchronous) that the <em>Prepared</em> state can be reached: 207 * either a call to {@link #prepare()} (synchronous) which 208 * transfers the object to the <em>Prepared</em> state once the method call 209 * returns, or a call to {@link #prepareAsync()} (asynchronous) which 210 * first transfers the object to the <em>Preparing</em> state after the 211 * call returns (which occurs almost right way) while the internal 212 * player engine continues working on the rest of preparation work 213 * until the preparation work completes. When the preparation completes or when {@link #prepare()} call returns, 214 * the internal player engine then calls a user supplied callback method, 215 * onPrepared() of the OnPreparedListener interface, if an 216 * OnPreparedListener is registered beforehand via {@link 217 * #setOnPreparedListener(android.media.MediaPlayer.OnPreparedListener)}.</li> 218 * <li>It is important to note that 219 * the <em>Preparing</em> state is a transient state, and the behavior 220 * of calling any method with side effect while a MediaPlayer object is 221 * in the <em>Preparing</em> state is undefined.</li> 222 * <li>An IllegalStateException is 223 * thrown if {@link #prepare()} or {@link #prepareAsync()} is called in 224 * any other state.</li> 225 * <li>While in the <em>Prepared</em> state, properties 226 * such as audio/sound volume, screenOnWhilePlaying, looping can be 227 * adjusted by invoking the corresponding set methods.</li> 228 * </ul> 229 * </li> 230 * <li>To start the playback, {@link #start()} must be called. After 231 * {@link #start()} returns successfully, the MediaPlayer object is in the 232 * <em>Started</em> state. {@link #isPlaying()} can be called to test 233 * whether the MediaPlayer object is in the <em>Started</em> state. 234 * <ul> 235 * <li>While in the <em>Started</em> state, the internal player engine calls 236 * a user supplied OnBufferingUpdateListener.onBufferingUpdate() callback 237 * method if a OnBufferingUpdateListener has been registered beforehand 238 * via {@link #setOnBufferingUpdateListener(OnBufferingUpdateListener)}. 239 * This callback allows applications to keep track of the buffering status 240 * while streaming audio/video.</li> 241 * <li>Calling {@link #start()} has not effect 242 * on a MediaPlayer object that is already in the <em>Started</em> state.</li> 243 * </ul> 244 * </li> 245 * <li>Playback can be paused and stopped, and the current playback position 246 * can be adjusted. Playback can be paused via {@link #pause()}. When the call to 247 * {@link #pause()} returns, the MediaPlayer object enters the 248 * <em>Paused</em> state. Note that the transition from the <em>Started</em> 249 * state to the <em>Paused</em> state and vice versa happens 250 * asynchronously in the player engine. It may take some time before 251 * the state is updated in calls to {@link #isPlaying()}, and it can be 252 * a number of seconds in the case of streamed content. 253 * <ul> 254 * <li>Calling {@link #start()} to resume playback for a paused 255 * MediaPlayer object, and the resumed playback 256 * position is the same as where it was paused. When the call to 257 * {@link #start()} returns, the paused MediaPlayer object goes back to 258 * the <em>Started</em> state.</li> 259 * <li>Calling {@link #pause()} has no effect on 260 * a MediaPlayer object that is already in the <em>Paused</em> state.</li> 261 * </ul> 262 * </li> 263 * <li>Calling {@link #stop()} stops playback and causes a 264 * MediaPlayer in the <em>Started</em>, <em>Paused</em>, <em>Prepared 265 * </em> or <em>PlaybackCompleted</em> state to enter the 266 * <em>Stopped</em> state. 267 * <ul> 268 * <li>Once in the <em>Stopped</em> state, playback cannot be started 269 * until {@link #prepare()} or {@link #prepareAsync()} are called to set 270 * the MediaPlayer object to the <em>Prepared</em> state again.</li> 271 * <li>Calling {@link #stop()} has no effect on a MediaPlayer 272 * object that is already in the <em>Stopped</em> state.</li> 273 * </ul> 274 * </li> 275 * <li>The playback position can be adjusted with a call to 276 * {@link #seekTo(int)}. 277 * <ul> 278 * <li>Although the asynchronuous {@link #seekTo(int)} 279 * call returns right way, the actual seek operation may take a while to 280 * finish, especially for audio/video being streamed. When the actual 281 * seek operation completes, the internal player engine calls a user 282 * supplied OnSeekComplete.onSeekComplete() if an OnSeekCompleteListener 283 * has been registered beforehand via 284 * {@link #setOnSeekCompleteListener(OnSeekCompleteListener)}.</li> 285 * <li>Please 286 * note that {@link #seekTo(int)} can also be called in the other states, 287 * such as <em>Prepared</em>, <em>Paused</em> and <em>PlaybackCompleted 288 * </em> state.</li> 289 * <li>Furthermore, the actual current playback position 290 * can be retrieved with a call to {@link #getCurrentPosition()}, which 291 * is helpful for applications such as a Music player that need to keep 292 * track of the playback progress.</li> 293 * </ul> 294 * </li> 295 * <li>When the playback reaches the end of stream, the playback completes. 296 * <ul> 297 * <li>If the looping mode was being set to <var>true</var>with 298 * {@link #setLooping(boolean)}, the MediaPlayer object shall remain in 299 * the <em>Started</em> state.</li> 300 * <li>If the looping mode was set to <var>false 301 * </var>, the player engine calls a user supplied callback method, 302 * OnCompletion.onCompletion(), if a OnCompletionListener is registered 303 * beforehand via {@link #setOnCompletionListener(OnCompletionListener)}. 304 * The invoke of the callback signals that the object is now in the <em> 305 * PlaybackCompleted</em> state.</li> 306 * <li>While in the <em>PlaybackCompleted</em> 307 * state, calling {@link #start()} can restart the playback from the 308 * beginning of the audio/video source.</li> 309 * </ul> 310 * 311 * 312 * <a name="Valid_and_Invalid_States"></a> 313 * <h3>Valid and invalid states</h3> 314 * 315 * <table border="0" cellspacing="0" cellpadding="0"> 316 * <tr><td>Method Name </p></td> 317 * <td>Valid Sates </p></td> 318 * <td>Invalid States </p></td> 319 * <td>Comments </p></td></tr> 320 * <tr><td>attachAuxEffect </p></td> 321 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td> 322 * <td>{Idle, Error} </p></td> 323 * <td>This method must be called after setDataSource. 324 * Calling it does not change the object state. </p></td></tr> 325 * <tr><td>getAudioSessionId </p></td> 326 * <td>any </p></td> 327 * <td>{} </p></td> 328 * <td>This method can be called in any state and calling it does not change 329 * the object state. </p></td></tr> 330 * <tr><td>getCurrentPosition </p></td> 331 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped, 332 * PlaybackCompleted} </p></td> 333 * <td>{Error}</p></td> 334 * <td>Successful invoke of this method in a valid state does not change the 335 * state. Calling this method in an invalid state transfers the object 336 * to the <em>Error</em> state. </p></td></tr> 337 * <tr><td>getDuration </p></td> 338 * <td>{Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td> 339 * <td>{Idle, Initialized, Error} </p></td> 340 * <td>Successful invoke of this method in a valid state does not change the 341 * state. Calling this method in an invalid state transfers the object 342 * to the <em>Error</em> state. </p></td></tr> 343 * <tr><td>getVideoHeight </p></td> 344 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped, 345 * PlaybackCompleted}</p></td> 346 * <td>{Error}</p></td> 347 * <td>Successful invoke of this method in a valid state does not change the 348 * state. Calling this method in an invalid state transfers the object 349 * to the <em>Error</em> state. </p></td></tr> 350 * <tr><td>getVideoWidth </p></td> 351 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped, 352 * PlaybackCompleted}</p></td> 353 * <td>{Error}</p></td> 354 * <td>Successful invoke of this method in a valid state does not change 355 * the state. Calling this method in an invalid state transfers the 356 * object to the <em>Error</em> state. </p></td></tr> 357 * <tr><td>isPlaying </p></td> 358 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped, 359 * PlaybackCompleted}</p></td> 360 * <td>{Error}</p></td> 361 * <td>Successful invoke of this method in a valid state does not change 362 * the state. Calling this method in an invalid state transfers the 363 * object to the <em>Error</em> state. </p></td></tr> 364 * <tr><td>pause </p></td> 365 * <td>{Started, Paused, PlaybackCompleted}</p></td> 366 * <td>{Idle, Initialized, Prepared, Stopped, Error}</p></td> 367 * <td>Successful invoke of this method in a valid state transfers the 368 * object to the <em>Paused</em> state. Calling this method in an 369 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr> 370 * <tr><td>prepare </p></td> 371 * <td>{Initialized, Stopped} </p></td> 372 * <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td> 373 * <td>Successful invoke of this method in a valid state transfers the 374 * object to the <em>Prepared</em> state. Calling this method in an 375 * invalid state throws an IllegalStateException.</p></td></tr> 376 * <tr><td>prepareAsync </p></td> 377 * <td>{Initialized, Stopped} </p></td> 378 * <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td> 379 * <td>Successful invoke of this method in a valid state transfers the 380 * object to the <em>Preparing</em> state. Calling this method in an 381 * invalid state throws an IllegalStateException.</p></td></tr> 382 * <tr><td>release </p></td> 383 * <td>any </p></td> 384 * <td>{} </p></td> 385 * <td>After {@link #release()}, the object is no longer available. </p></td></tr> 386 * <tr><td>reset </p></td> 387 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped, 388 * PlaybackCompleted, Error}</p></td> 389 * <td>{}</p></td> 390 * <td>After {@link #reset()}, the object is like being just created.</p></td></tr> 391 * <tr><td>seekTo </p></td> 392 * <td>{Prepared, Started, Paused, PlaybackCompleted} </p></td> 393 * <td>{Idle, Initialized, Stopped, Error}</p></td> 394 * <td>Successful invoke of this method in a valid state does not change 395 * the state. Calling this method in an invalid state transfers the 396 * object to the <em>Error</em> state. </p></td></tr> 397 * <tr><td>setAudioAttributes </p></td> 398 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused, 399 * PlaybackCompleted}</p></td> 400 * <td>{Error}</p></td> 401 * <td>Successful invoke of this method does not change the state. In order for the 402 * target audio attributes type to become effective, this method must be called before 403 * prepare() or prepareAsync().</p></td></tr> 404 * <tr><td>setAudioSessionId </p></td> 405 * <td>{Idle} </p></td> 406 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, 407 * Error} </p></td> 408 * <td>This method must be called in idle state as the audio session ID must be known before 409 * calling setDataSource. Calling it does not change the object state. </p></td></tr> 410 * <tr><td>setAudioStreamType </p></td> 411 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused, 412 * PlaybackCompleted}</p></td> 413 * <td>{Error}</p></td> 414 * <td>Successful invoke of this method does not change the state. In order for the 415 * target audio stream type to become effective, this method must be called before 416 * prepare() or prepareAsync().</p></td></tr> 417 * <tr><td>setAuxEffectSendLevel </p></td> 418 * <td>any</p></td> 419 * <td>{} </p></td> 420 * <td>Calling this method does not change the object state. </p></td></tr> 421 * <tr><td>setDataSource </p></td> 422 * <td>{Idle} </p></td> 423 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, 424 * Error} </p></td> 425 * <td>Successful invoke of this method in a valid state transfers the 426 * object to the <em>Initialized</em> state. Calling this method in an 427 * invalid state throws an IllegalStateException.</p></td></tr> 428 * <tr><td>setDisplay </p></td> 429 * <td>any </p></td> 430 * <td>{} </p></td> 431 * <td>This method can be called in any state and calling it does not change 432 * the object state. </p></td></tr> 433 * <tr><td>setSurface </p></td> 434 * <td>any </p></td> 435 * <td>{} </p></td> 436 * <td>This method can be called in any state and calling it does not change 437 * the object state. </p></td></tr> 438 * <tr><td>setVideoScalingMode </p></td> 439 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td> 440 * <td>{Idle, Error}</p></td> 441 * <td>Successful invoke of this method does not change the state.</p></td></tr> 442 * <tr><td>setLooping </p></td> 443 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused, 444 * PlaybackCompleted}</p></td> 445 * <td>{Error}</p></td> 446 * <td>Successful invoke of this method in a valid state does not change 447 * the state. Calling this method in an 448 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr> 449 * <tr><td>isLooping </p></td> 450 * <td>any </p></td> 451 * <td>{} </p></td> 452 * <td>This method can be called in any state and calling it does not change 453 * the object state. </p></td></tr> 454 * <tr><td>setOnBufferingUpdateListener </p></td> 455 * <td>any </p></td> 456 * <td>{} </p></td> 457 * <td>This method can be called in any state and calling it does not change 458 * the object state. </p></td></tr> 459 * <tr><td>setOnCompletionListener </p></td> 460 * <td>any </p></td> 461 * <td>{} </p></td> 462 * <td>This method can be called in any state and calling it does not change 463 * the object state. </p></td></tr> 464 * <tr><td>setOnErrorListener </p></td> 465 * <td>any </p></td> 466 * <td>{} </p></td> 467 * <td>This method can be called in any state and calling it does not change 468 * the object state. </p></td></tr> 469 * <tr><td>setOnPreparedListener </p></td> 470 * <td>any </p></td> 471 * <td>{} </p></td> 472 * <td>This method can be called in any state and calling it does not change 473 * the object state. </p></td></tr> 474 * <tr><td>setOnSeekCompleteListener </p></td> 475 * <td>any </p></td> 476 * <td>{} </p></td> 477 * <td>This method can be called in any state and calling it does not change 478 * the object state. </p></td></tr> 479 * <tr><td>setPlaybackParams</p></td> 480 * <td>{Initialized, Prepared, Started, Paused, PlaybackCompleted, Error}</p></td> 481 * <td>{Idle, Stopped} </p></td> 482 * <td>This method will change state in some cases, depending on when it's called. 483 * </p></td></tr> 484 * <tr><td>setScreenOnWhilePlaying</></td> 485 * <td>any </p></td> 486 * <td>{} </p></td> 487 * <td>This method can be called in any state and calling it does not change 488 * the object state. </p></td></tr> 489 * <tr><td>setVolume </p></td> 490 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused, 491 * PlaybackCompleted}</p></td> 492 * <td>{Error}</p></td> 493 * <td>Successful invoke of this method does not change the state. 494 * <tr><td>setWakeMode </p></td> 495 * <td>any </p></td> 496 * <td>{} </p></td> 497 * <td>This method can be called in any state and calling it does not change 498 * the object state.</p></td></tr> 499 * <tr><td>start </p></td> 500 * <td>{Prepared, Started, Paused, PlaybackCompleted}</p></td> 501 * <td>{Idle, Initialized, Stopped, Error}</p></td> 502 * <td>Successful invoke of this method in a valid state transfers the 503 * object to the <em>Started</em> state. Calling this method in an 504 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr> 505 * <tr><td>stop </p></td> 506 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td> 507 * <td>{Idle, Initialized, Error}</p></td> 508 * <td>Successful invoke of this method in a valid state transfers the 509 * object to the <em>Stopped</em> state. Calling this method in an 510 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr> 511 * <tr><td>getTrackInfo </p></td> 512 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td> 513 * <td>{Idle, Initialized, Error}</p></td> 514 * <td>Successful invoke of this method does not change the state.</p></td></tr> 515 * <tr><td>addTimedTextSource </p></td> 516 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td> 517 * <td>{Idle, Initialized, Error}</p></td> 518 * <td>Successful invoke of this method does not change the state.</p></td></tr> 519 * <tr><td>selectTrack </p></td> 520 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td> 521 * <td>{Idle, Initialized, Error}</p></td> 522 * <td>Successful invoke of this method does not change the state.</p></td></tr> 523 * <tr><td>deselectTrack </p></td> 524 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td> 525 * <td>{Idle, Initialized, Error}</p></td> 526 * <td>Successful invoke of this method does not change the state.</p></td></tr> 527 * 528 * </table> 529 * 530 * <a name="Permissions"></a> 531 * <h3>Permissions</h3> 532 * <p>One may need to declare a corresponding WAKE_LOCK permission {@link 533 * android.R.styleable#AndroidManifestUsesPermission <uses-permission>} 534 * element. 535 * 536 * <p>This class requires the {@link android.Manifest.permission#INTERNET} permission 537 * when used with network-based content. 538 * 539 * <a name="Callbacks"></a> 540 * <h3>Callbacks</h3> 541 * <p>Applications may want to register for informational and error 542 * events in order to be informed of some internal state update and 543 * possible runtime errors during playback or streaming. Registration for 544 * these events is done by properly setting the appropriate listeners (via calls 545 * to 546 * {@link #setOnPreparedListener(OnPreparedListener)}setOnPreparedListener, 547 * {@link #setOnVideoSizeChangedListener(OnVideoSizeChangedListener)}setOnVideoSizeChangedListener, 548 * {@link #setOnSeekCompleteListener(OnSeekCompleteListener)}setOnSeekCompleteListener, 549 * {@link #setOnCompletionListener(OnCompletionListener)}setOnCompletionListener, 550 * {@link #setOnBufferingUpdateListener(OnBufferingUpdateListener)}setOnBufferingUpdateListener, 551 * {@link #setOnInfoListener(OnInfoListener)}setOnInfoListener, 552 * {@link #setOnErrorListener(OnErrorListener)}setOnErrorListener, etc). 553 * In order to receive the respective callback 554 * associated with these listeners, applications are required to create 555 * MediaPlayer objects on a thread with its own Looper running (main UI 556 * thread by default has a Looper running). 557 * 558 */ 559public class MediaPlayer extends PlayerBase 560 implements SubtitleController.Listener 561{ 562 /** 563 Constant to retrieve only the new metadata since the last 564 call. 565 // FIXME: unhide. 566 // FIXME: add link to getMetadata(boolean, boolean) 567 {@hide} 568 */ 569 public static final boolean METADATA_UPDATE_ONLY = true; 570 571 /** 572 Constant to retrieve all the metadata. 573 // FIXME: unhide. 574 // FIXME: add link to getMetadata(boolean, boolean) 575 {@hide} 576 */ 577 public static final boolean METADATA_ALL = false; 578 579 /** 580 Constant to enable the metadata filter during retrieval. 581 // FIXME: unhide. 582 // FIXME: add link to getMetadata(boolean, boolean) 583 {@hide} 584 */ 585 public static final boolean APPLY_METADATA_FILTER = true; 586 587 /** 588 Constant to disable the metadata filter during retrieval. 589 // FIXME: unhide. 590 // FIXME: add link to getMetadata(boolean, boolean) 591 {@hide} 592 */ 593 public static final boolean BYPASS_METADATA_FILTER = false; 594 595 static { 596 System.loadLibrary("media_jni"); 597 native_init(); 598 } 599 600 private final static String TAG = "MediaPlayer"; 601 // Name of the remote interface for the media player. Must be kept 602 // in sync with the 2nd parameter of the IMPLEMENT_META_INTERFACE 603 // macro invocation in IMediaPlayer.cpp 604 private final static String IMEDIA_PLAYER = "android.media.IMediaPlayer"; 605 606 private long mNativeContext; // accessed by native methods 607 private long mNativeSurfaceTexture; // accessed by native methods 608 private int mListenerContext; // accessed by native methods 609 private SurfaceHolder mSurfaceHolder; 610 private EventHandler mEventHandler; 611 private PowerManager.WakeLock mWakeLock = null; 612 private boolean mScreenOnWhilePlaying; 613 private boolean mStayAwake; 614 private int mStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE; 615 private int mUsage = -1; 616 private boolean mBypassInterruptionPolicy; 617 618 /** 619 * Default constructor. Consider using one of the create() methods for 620 * synchronously instantiating a MediaPlayer from a Uri or resource. 621 * <p>When done with the MediaPlayer, you should call {@link #release()}, 622 * to free the resources. If not released, too many MediaPlayer instances may 623 * result in an exception.</p> 624 */ 625 public MediaPlayer() { 626 super(new AudioAttributes.Builder().build()); 627 628 Looper looper; 629 if ((looper = Looper.myLooper()) != null) { 630 mEventHandler = new EventHandler(this, looper); 631 } else if ((looper = Looper.getMainLooper()) != null) { 632 mEventHandler = new EventHandler(this, looper); 633 } else { 634 mEventHandler = null; 635 } 636 637 mTimeProvider = new TimeProvider(this); 638 mOpenSubtitleSources = new Vector<InputStream>(); 639 640 /* Native setup requires a weak reference to our object. 641 * It's easier to create it here than in C++. 642 */ 643 native_setup(new WeakReference<MediaPlayer>(this)); 644 } 645 646 /* 647 * Update the MediaPlayer SurfaceTexture. 648 * Call after setting a new display surface. 649 */ 650 private native void _setVideoSurface(Surface surface); 651 652 /* Do not change these values (starting with INVOKE_ID) without updating 653 * their counterparts in include/media/mediaplayer.h! 654 */ 655 private static final int INVOKE_ID_GET_TRACK_INFO = 1; 656 private static final int INVOKE_ID_ADD_EXTERNAL_SOURCE = 2; 657 private static final int INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3; 658 private static final int INVOKE_ID_SELECT_TRACK = 4; 659 private static final int INVOKE_ID_DESELECT_TRACK = 5; 660 private static final int INVOKE_ID_SET_VIDEO_SCALE_MODE = 6; 661 private static final int INVOKE_ID_GET_SELECTED_TRACK = 7; 662 663 /** 664 * Create a request parcel which can be routed to the native media 665 * player using {@link #invoke(Parcel, Parcel)}. The Parcel 666 * returned has the proper InterfaceToken set. The caller should 667 * not overwrite that token, i.e it can only append data to the 668 * Parcel. 669 * 670 * @return A parcel suitable to hold a request for the native 671 * player. 672 * {@hide} 673 */ 674 public Parcel newRequest() { 675 Parcel parcel = Parcel.obtain(); 676 parcel.writeInterfaceToken(IMEDIA_PLAYER); 677 return parcel; 678 } 679 680 /** 681 * Invoke a generic method on the native player using opaque 682 * parcels for the request and reply. Both payloads' format is a 683 * convention between the java caller and the native player. 684 * Must be called after setDataSource to make sure a native player 685 * exists. On failure, a RuntimeException is thrown. 686 * 687 * @param request Parcel with the data for the extension. The 688 * caller must use {@link #newRequest()} to get one. 689 * 690 * @param reply Output parcel with the data returned by the 691 * native player. 692 * {@hide} 693 */ 694 public void invoke(Parcel request, Parcel reply) { 695 int retcode = native_invoke(request, reply); 696 reply.setDataPosition(0); 697 if (retcode != 0) { 698 throw new RuntimeException("failure code: " + retcode); 699 } 700 } 701 702 /** 703 * Sets the {@link SurfaceHolder} to use for displaying the video 704 * portion of the media. 705 * 706 * Either a surface holder or surface must be set if a display or video sink 707 * is needed. Not calling this method or {@link #setSurface(Surface)} 708 * when playing back a video will result in only the audio track being played. 709 * A null surface holder or surface will result in only the audio track being 710 * played. 711 * 712 * @param sh the SurfaceHolder to use for video display 713 * @throws IllegalStateException if the internal player engine has not been 714 * initialized or has been released. 715 */ 716 public void setDisplay(SurfaceHolder sh) { 717 mSurfaceHolder = sh; 718 Surface surface; 719 if (sh != null) { 720 surface = sh.getSurface(); 721 } else { 722 surface = null; 723 } 724 _setVideoSurface(surface); 725 updateSurfaceScreenOn(); 726 } 727 728 /** 729 * Sets the {@link Surface} to be used as the sink for the video portion of 730 * the media. This is similar to {@link #setDisplay(SurfaceHolder)}, but 731 * does not support {@link #setScreenOnWhilePlaying(boolean)}. Setting a 732 * Surface will un-set any Surface or SurfaceHolder that was previously set. 733 * A null surface will result in only the audio track being played. 734 * 735 * If the Surface sends frames to a {@link SurfaceTexture}, the timestamps 736 * returned from {@link SurfaceTexture#getTimestamp()} will have an 737 * unspecified zero point. These timestamps cannot be directly compared 738 * between different media sources, different instances of the same media 739 * source, or multiple runs of the same program. The timestamp is normally 740 * monotonically increasing and is unaffected by time-of-day adjustments, 741 * but it is reset when the position is set. 742 * 743 * @param surface The {@link Surface} to be used for the video portion of 744 * the media. 745 * @throws IllegalStateException if the internal player engine has not been 746 * initialized or has been released. 747 */ 748 public void setSurface(Surface surface) { 749 if (mScreenOnWhilePlaying && surface != null) { 750 Log.w(TAG, "setScreenOnWhilePlaying(true) is ineffective for Surface"); 751 } 752 mSurfaceHolder = null; 753 _setVideoSurface(surface); 754 updateSurfaceScreenOn(); 755 } 756 757 /* Do not change these video scaling mode values below without updating 758 * their counterparts in system/window.h! Please do not forget to update 759 * {@link #isVideoScalingModeSupported} when new video scaling modes 760 * are added. 761 */ 762 /** 763 * Specifies a video scaling mode. The content is stretched to the 764 * surface rendering area. When the surface has the same aspect ratio 765 * as the content, the aspect ratio of the content is maintained; 766 * otherwise, the aspect ratio of the content is not maintained when video 767 * is being rendered. Unlike {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING}, 768 * there is no content cropping with this video scaling mode. 769 */ 770 public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT = 1; 771 772 /** 773 * Specifies a video scaling mode. The content is scaled, maintaining 774 * its aspect ratio. The whole surface area is always used. When the 775 * aspect ratio of the content is the same as the surface, no content 776 * is cropped; otherwise, content is cropped to fit the surface. 777 */ 778 public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING = 2; 779 /** 780 * Sets video scaling mode. To make the target video scaling mode 781 * effective during playback, this method must be called after 782 * data source is set. If not called, the default video 783 * scaling mode is {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}. 784 * 785 * <p> The supported video scaling modes are: 786 * <ul> 787 * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT} 788 * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING} 789 * </ul> 790 * 791 * @param mode target video scaling mode. Must be one of the supported 792 * video scaling modes; otherwise, IllegalArgumentException will be thrown. 793 * 794 * @see MediaPlayer#VIDEO_SCALING_MODE_SCALE_TO_FIT 795 * @see MediaPlayer#VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING 796 */ 797 public void setVideoScalingMode(int mode) { 798 if (!isVideoScalingModeSupported(mode)) { 799 final String msg = "Scaling mode " + mode + " is not supported"; 800 throw new IllegalArgumentException(msg); 801 } 802 Parcel request = Parcel.obtain(); 803 Parcel reply = Parcel.obtain(); 804 try { 805 request.writeInterfaceToken(IMEDIA_PLAYER); 806 request.writeInt(INVOKE_ID_SET_VIDEO_SCALE_MODE); 807 request.writeInt(mode); 808 invoke(request, reply); 809 } finally { 810 request.recycle(); 811 reply.recycle(); 812 } 813 } 814 815 /** 816 * Convenience method to create a MediaPlayer for a given Uri. 817 * On success, {@link #prepare()} will already have been called and must not be called again. 818 * <p>When done with the MediaPlayer, you should call {@link #release()}, 819 * to free the resources. If not released, too many MediaPlayer instances will 820 * result in an exception.</p> 821 * <p>Note that since {@link #prepare()} is called automatically in this method, 822 * you cannot change the audio stream type (see {@link #setAudioStreamType(int)}), audio 823 * session ID (see {@link #setAudioSessionId(int)}) or audio attributes 824 * (see {@link #setAudioAttributes(AudioAttributes)} of the new MediaPlayer.</p> 825 * 826 * @param context the Context to use 827 * @param uri the Uri from which to get the datasource 828 * @return a MediaPlayer object, or null if creation failed 829 */ 830 public static MediaPlayer create(Context context, Uri uri) { 831 return create (context, uri, null); 832 } 833 834 /** 835 * Convenience method to create a MediaPlayer for a given Uri. 836 * On success, {@link #prepare()} will already have been called and must not be called again. 837 * <p>When done with the MediaPlayer, you should call {@link #release()}, 838 * to free the resources. If not released, too many MediaPlayer instances will 839 * result in an exception.</p> 840 * <p>Note that since {@link #prepare()} is called automatically in this method, 841 * you cannot change the audio stream type (see {@link #setAudioStreamType(int)}), audio 842 * session ID (see {@link #setAudioSessionId(int)}) or audio attributes 843 * (see {@link #setAudioAttributes(AudioAttributes)} of the new MediaPlayer.</p> 844 * 845 * @param context the Context to use 846 * @param uri the Uri from which to get the datasource 847 * @param holder the SurfaceHolder to use for displaying the video 848 * @return a MediaPlayer object, or null if creation failed 849 */ 850 public static MediaPlayer create(Context context, Uri uri, SurfaceHolder holder) { 851 int s = AudioSystem.newAudioSessionId(); 852 return create(context, uri, holder, null, s > 0 ? s : 0); 853 } 854 855 /** 856 * Same factory method as {@link #create(Context, Uri, SurfaceHolder)} but that lets you specify 857 * the audio attributes and session ID to be used by the new MediaPlayer instance. 858 * @param context the Context to use 859 * @param uri the Uri from which to get the datasource 860 * @param holder the SurfaceHolder to use for displaying the video, may be null. 861 * @param audioAttributes the {@link AudioAttributes} to be used by the media player. 862 * @param audioSessionId the audio session ID to be used by the media player, 863 * see {@link AudioManager#generateAudioSessionId()} to obtain a new session. 864 * @return a MediaPlayer object, or null if creation failed 865 */ 866 public static MediaPlayer create(Context context, Uri uri, SurfaceHolder holder, 867 AudioAttributes audioAttributes, int audioSessionId) { 868 869 try { 870 MediaPlayer mp = new MediaPlayer(); 871 final AudioAttributes aa = audioAttributes != null ? audioAttributes : 872 new AudioAttributes.Builder().build(); 873 mp.setAudioAttributes(aa); 874 mp.setAudioSessionId(audioSessionId); 875 mp.setDataSource(context, uri); 876 if (holder != null) { 877 mp.setDisplay(holder); 878 } 879 mp.prepare(); 880 return mp; 881 } catch (IOException ex) { 882 Log.d(TAG, "create failed:", ex); 883 // fall through 884 } catch (IllegalArgumentException ex) { 885 Log.d(TAG, "create failed:", ex); 886 // fall through 887 } catch (SecurityException ex) { 888 Log.d(TAG, "create failed:", ex); 889 // fall through 890 } 891 892 return null; 893 } 894 895 // Note no convenience method to create a MediaPlayer with SurfaceTexture sink. 896 897 /** 898 * Convenience method to create a MediaPlayer for a given resource id. 899 * On success, {@link #prepare()} will already have been called and must not be called again. 900 * <p>When done with the MediaPlayer, you should call {@link #release()}, 901 * to free the resources. If not released, too many MediaPlayer instances will 902 * result in an exception.</p> 903 * <p>Note that since {@link #prepare()} is called automatically in this method, 904 * you cannot change the audio stream type (see {@link #setAudioStreamType(int)}), audio 905 * session ID (see {@link #setAudioSessionId(int)}) or audio attributes 906 * (see {@link #setAudioAttributes(AudioAttributes)} of the new MediaPlayer.</p> 907 * 908 * @param context the Context to use 909 * @param resid the raw resource id (<var>R.raw.<something></var>) for 910 * the resource to use as the datasource 911 * @return a MediaPlayer object, or null if creation failed 912 */ 913 public static MediaPlayer create(Context context, int resid) { 914 int s = AudioSystem.newAudioSessionId(); 915 return create(context, resid, null, s > 0 ? s : 0); 916 } 917 918 /** 919 * Same factory method as {@link #create(Context, int)} but that lets you specify the audio 920 * attributes and session ID to be used by the new MediaPlayer instance. 921 * @param context the Context to use 922 * @param resid the raw resource id (<var>R.raw.<something></var>) for 923 * the resource to use as the datasource 924 * @param audioAttributes the {@link AudioAttributes} to be used by the media player. 925 * @param audioSessionId the audio session ID to be used by the media player, 926 * see {@link AudioManager#generateAudioSessionId()} to obtain a new session. 927 * @return a MediaPlayer object, or null if creation failed 928 */ 929 public static MediaPlayer create(Context context, int resid, 930 AudioAttributes audioAttributes, int audioSessionId) { 931 try { 932 AssetFileDescriptor afd = context.getResources().openRawResourceFd(resid); 933 if (afd == null) return null; 934 935 MediaPlayer mp = new MediaPlayer(); 936 937 final AudioAttributes aa = audioAttributes != null ? audioAttributes : 938 new AudioAttributes.Builder().build(); 939 mp.setAudioAttributes(aa); 940 mp.setAudioSessionId(audioSessionId); 941 942 mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength()); 943 afd.close(); 944 mp.prepare(); 945 return mp; 946 } catch (IOException ex) { 947 Log.d(TAG, "create failed:", ex); 948 // fall through 949 } catch (IllegalArgumentException ex) { 950 Log.d(TAG, "create failed:", ex); 951 // fall through 952 } catch (SecurityException ex) { 953 Log.d(TAG, "create failed:", ex); 954 // fall through 955 } 956 return null; 957 } 958 959 /** 960 * Sets the data source as a content Uri. 961 * 962 * @param context the Context to use when resolving the Uri 963 * @param uri the Content URI of the data you want to play 964 * @throws IllegalStateException if it is called in an invalid state 965 */ 966 public void setDataSource(@NonNull Context context, @NonNull Uri uri) 967 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException { 968 setDataSource(context, uri, null); 969 } 970 971 /** 972 * Sets the data source as a content Uri. 973 * 974 * @param context the Context to use when resolving the Uri 975 * @param uri the Content URI of the data you want to play 976 * @param headers the headers to be sent together with the request for the data 977 * Note that the cross domain redirection is allowed by default, but that can be 978 * changed with key/value pairs through the headers parameter with 979 * "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value 980 * to disallow or allow cross domain redirection. 981 * @throws IllegalStateException if it is called in an invalid state 982 */ 983 public void setDataSource(@NonNull Context context, @NonNull Uri uri, 984 @Nullable Map<String, String> headers) throws IOException, IllegalArgumentException, 985 SecurityException, IllegalStateException { 986 // The context and URI usually belong to the calling user. Get a resolver for that user 987 // and strip out the userId from the URI if present. 988 final ContentResolver resolver = context.getContentResolver(); 989 final String scheme = uri.getScheme(); 990 final String authority = ContentProvider.getAuthorityWithoutUserId(uri.getAuthority()); 991 if (ContentResolver.SCHEME_FILE.equals(scheme)) { 992 setDataSource(uri.getPath()); 993 return; 994 } else if (ContentResolver.SCHEME_CONTENT.equals(scheme) 995 && Settings.AUTHORITY.equals(authority)) { 996 // Try cached ringtone first since the actual provider may not be 997 // encryption aware, or it may be stored on CE media storage 998 final int type = RingtoneManager.getDefaultType(uri); 999 final Uri cacheUri = RingtoneManager.getCacheForType(type, context.getUserId()); 1000 final Uri actualUri = RingtoneManager.getActualDefaultRingtoneUri(context, type); 1001 if (attemptDataSource(resolver, cacheUri)) { 1002 return; 1003 } else if (attemptDataSource(resolver, actualUri)) { 1004 return; 1005 } else { 1006 setDataSource(uri.toString(), headers); 1007 } 1008 } else { 1009 // Try requested Uri locally first, or fallback to media server 1010 if (attemptDataSource(resolver, uri)) { 1011 return; 1012 } else { 1013 setDataSource(uri.toString(), headers); 1014 } 1015 } 1016 } 1017 1018 private boolean attemptDataSource(ContentResolver resolver, Uri uri) { 1019 try (AssetFileDescriptor afd = resolver.openAssetFileDescriptor(uri, "r")) { 1020 setDataSource(afd); 1021 return true; 1022 } catch (NullPointerException | SecurityException | IOException ex) { 1023 Log.w(TAG, "Couldn't open " + uri + ": " + ex); 1024 return false; 1025 } 1026 } 1027 1028 /** 1029 * Sets the data source (file-path or http/rtsp URL) to use. 1030 * 1031 * @param path the path of the file, or the http/rtsp URL of the stream you want to play 1032 * @throws IllegalStateException if it is called in an invalid state 1033 * 1034 * <p>When <code>path</code> refers to a local file, the file may actually be opened by a 1035 * process other than the calling application. This implies that the pathname 1036 * should be an absolute path (as any other process runs with unspecified current working 1037 * directory), and that the pathname should reference a world-readable file. 1038 * As an alternative, the application could first open the file for reading, 1039 * and then use the file descriptor form {@link #setDataSource(FileDescriptor)}. 1040 */ 1041 public void setDataSource(String path) 1042 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException { 1043 setDataSource(path, null, null); 1044 } 1045 1046 /** 1047 * Sets the data source (file-path or http/rtsp URL) to use. 1048 * 1049 * @param path the path of the file, or the http/rtsp URL of the stream you want to play 1050 * @param headers the headers associated with the http request for the stream you want to play 1051 * @throws IllegalStateException if it is called in an invalid state 1052 * @hide pending API council 1053 */ 1054 public void setDataSource(String path, Map<String, String> headers) 1055 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException 1056 { 1057 String[] keys = null; 1058 String[] values = null; 1059 1060 if (headers != null) { 1061 keys = new String[headers.size()]; 1062 values = new String[headers.size()]; 1063 1064 int i = 0; 1065 for (Map.Entry<String, String> entry: headers.entrySet()) { 1066 keys[i] = entry.getKey(); 1067 values[i] = entry.getValue(); 1068 ++i; 1069 } 1070 } 1071 setDataSource(path, keys, values); 1072 } 1073 1074 private void setDataSource(String path, String[] keys, String[] values) 1075 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException { 1076 final Uri uri = Uri.parse(path); 1077 final String scheme = uri.getScheme(); 1078 if ("file".equals(scheme)) { 1079 path = uri.getPath(); 1080 } else if (scheme != null) { 1081 // handle non-file sources 1082 nativeSetDataSource( 1083 MediaHTTPService.createHttpServiceBinderIfNecessary(path), 1084 path, 1085 keys, 1086 values); 1087 return; 1088 } 1089 1090 final File file = new File(path); 1091 if (file.exists()) { 1092 FileInputStream is = new FileInputStream(file); 1093 FileDescriptor fd = is.getFD(); 1094 setDataSource(fd); 1095 is.close(); 1096 } else { 1097 throw new IOException("setDataSource failed."); 1098 } 1099 } 1100 1101 private native void nativeSetDataSource( 1102 IBinder httpServiceBinder, String path, String[] keys, String[] values) 1103 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException; 1104 1105 /** 1106 * Sets the data source (AssetFileDescriptor) to use. It is the caller's 1107 * responsibility to close the file descriptor. It is safe to do so as soon 1108 * as this call returns. 1109 * 1110 * @param afd the AssetFileDescriptor for the file you want to play 1111 * @throws IllegalStateException if it is called in an invalid state 1112 * @throws IllegalArgumentException if afd is not a valid AssetFileDescriptor 1113 * @throws IOException if afd can not be read 1114 */ 1115 public void setDataSource(@NonNull AssetFileDescriptor afd) 1116 throws IOException, IllegalArgumentException, IllegalStateException { 1117 Preconditions.checkNotNull(afd); 1118 // Note: using getDeclaredLength so that our behavior is the same 1119 // as previous versions when the content provider is returning 1120 // a full file. 1121 if (afd.getDeclaredLength() < 0) { 1122 setDataSource(afd.getFileDescriptor()); 1123 } else { 1124 setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getDeclaredLength()); 1125 } 1126 } 1127 1128 /** 1129 * Sets the data source (FileDescriptor) to use. It is the caller's responsibility 1130 * to close the file descriptor. It is safe to do so as soon as this call returns. 1131 * 1132 * @param fd the FileDescriptor for the file you want to play 1133 * @throws IllegalStateException if it is called in an invalid state 1134 * @throws IllegalArgumentException if fd is not a valid FileDescriptor 1135 * @throws IOException if fd can not be read 1136 */ 1137 public void setDataSource(FileDescriptor fd) 1138 throws IOException, IllegalArgumentException, IllegalStateException { 1139 // intentionally less than LONG_MAX 1140 setDataSource(fd, 0, 0x7ffffffffffffffL); 1141 } 1142 1143 /** 1144 * Sets the data source (FileDescriptor) to use. The FileDescriptor must be 1145 * seekable (N.B. a LocalSocket is not seekable). It is the caller's responsibility 1146 * to close the file descriptor. It is safe to do so as soon as this call returns. 1147 * 1148 * @param fd the FileDescriptor for the file you want to play 1149 * @param offset the offset into the file where the data to be played starts, in bytes 1150 * @param length the length in bytes of the data to be played 1151 * @throws IllegalStateException if it is called in an invalid state 1152 * @throws IllegalArgumentException if fd is not a valid FileDescriptor 1153 * @throws IOException if fd can not be read 1154 */ 1155 public void setDataSource(FileDescriptor fd, long offset, long length) 1156 throws IOException, IllegalArgumentException, IllegalStateException { 1157 _setDataSource(fd, offset, length); 1158 } 1159 1160 private native void _setDataSource(FileDescriptor fd, long offset, long length) 1161 throws IOException, IllegalArgumentException, IllegalStateException; 1162 1163 /** 1164 * Sets the data source (MediaDataSource) to use. 1165 * 1166 * @param dataSource the MediaDataSource for the media you want to play 1167 * @throws IllegalStateException if it is called in an invalid state 1168 * @throws IllegalArgumentException if dataSource is not a valid MediaDataSource 1169 */ 1170 public void setDataSource(MediaDataSource dataSource) 1171 throws IllegalArgumentException, IllegalStateException { 1172 _setDataSource(dataSource); 1173 } 1174 1175 private native void _setDataSource(MediaDataSource dataSource) 1176 throws IllegalArgumentException, IllegalStateException; 1177 1178 /** 1179 * Prepares the player for playback, synchronously. 1180 * 1181 * After setting the datasource and the display surface, you need to either 1182 * call prepare() or prepareAsync(). For files, it is OK to call prepare(), 1183 * which blocks until MediaPlayer is ready for playback. 1184 * 1185 * @throws IllegalStateException if it is called in an invalid state 1186 */ 1187 public void prepare() throws IOException, IllegalStateException { 1188 _prepare(); 1189 scanInternalSubtitleTracks(); 1190 } 1191 1192 private native void _prepare() throws IOException, IllegalStateException; 1193 1194 /** 1195 * Prepares the player for playback, asynchronously. 1196 * 1197 * After setting the datasource and the display surface, you need to either 1198 * call prepare() or prepareAsync(). For streams, you should call prepareAsync(), 1199 * which returns immediately, rather than blocking until enough data has been 1200 * buffered. 1201 * 1202 * @throws IllegalStateException if it is called in an invalid state 1203 */ 1204 public native void prepareAsync() throws IllegalStateException; 1205 1206 /** 1207 * Starts or resumes playback. If playback had previously been paused, 1208 * playback will continue from where it was paused. If playback had 1209 * been stopped, or never started before, playback will start at the 1210 * beginning. 1211 * 1212 * @throws IllegalStateException if it is called in an invalid state 1213 */ 1214 public void start() throws IllegalStateException { 1215 baseStart(); 1216 stayAwake(true); 1217 _start(); 1218 } 1219 1220 private native void _start() throws IllegalStateException; 1221 1222 1223 private int getAudioStreamType() { 1224 if (mStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) { 1225 mStreamType = _getAudioStreamType(); 1226 } 1227 return mStreamType; 1228 } 1229 1230 private native int _getAudioStreamType() throws IllegalStateException; 1231 1232 /** 1233 * Stops playback after playback has been stopped or paused. 1234 * 1235 * @throws IllegalStateException if the internal player engine has not been 1236 * initialized. 1237 */ 1238 public void stop() throws IllegalStateException { 1239 stayAwake(false); 1240 _stop(); 1241 } 1242 1243 private native void _stop() throws IllegalStateException; 1244 1245 /** 1246 * Pauses playback. Call start() to resume. 1247 * 1248 * @throws IllegalStateException if the internal player engine has not been 1249 * initialized. 1250 */ 1251 public void pause() throws IllegalStateException { 1252 stayAwake(false); 1253 _pause(); 1254 } 1255 1256 private native void _pause() throws IllegalStateException; 1257 1258 /** 1259 * Set the low-level power management behavior for this MediaPlayer. This 1260 * can be used when the MediaPlayer is not playing through a SurfaceHolder 1261 * set with {@link #setDisplay(SurfaceHolder)} and thus can use the 1262 * high-level {@link #setScreenOnWhilePlaying(boolean)} feature. 1263 * 1264 * <p>This function has the MediaPlayer access the low-level power manager 1265 * service to control the device's power usage while playing is occurring. 1266 * The parameter is a combination of {@link android.os.PowerManager} wake flags. 1267 * Use of this method requires {@link android.Manifest.permission#WAKE_LOCK} 1268 * permission. 1269 * By default, no attempt is made to keep the device awake during playback. 1270 * 1271 * @param context the Context to use 1272 * @param mode the power/wake mode to set 1273 * @see android.os.PowerManager 1274 */ 1275 public void setWakeMode(Context context, int mode) { 1276 boolean washeld = false; 1277 1278 /* Disable persistant wakelocks in media player based on property */ 1279 if (SystemProperties.getBoolean("audio.offload.ignore_setawake", false) == true) { 1280 Log.w(TAG, "IGNORING setWakeMode " + mode); 1281 return; 1282 } 1283 1284 if (mWakeLock != null) { 1285 if (mWakeLock.isHeld()) { 1286 washeld = true; 1287 mWakeLock.release(); 1288 } 1289 mWakeLock = null; 1290 } 1291 1292 PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 1293 mWakeLock = pm.newWakeLock(mode|PowerManager.ON_AFTER_RELEASE, MediaPlayer.class.getName()); 1294 mWakeLock.setReferenceCounted(false); 1295 if (washeld) { 1296 mWakeLock.acquire(); 1297 } 1298 } 1299 1300 /** 1301 * Control whether we should use the attached SurfaceHolder to keep the 1302 * screen on while video playback is occurring. This is the preferred 1303 * method over {@link #setWakeMode} where possible, since it doesn't 1304 * require that the application have permission for low-level wake lock 1305 * access. 1306 * 1307 * @param screenOn Supply true to keep the screen on, false to allow it 1308 * to turn off. 1309 */ 1310 public void setScreenOnWhilePlaying(boolean screenOn) { 1311 if (mScreenOnWhilePlaying != screenOn) { 1312 if (screenOn && mSurfaceHolder == null) { 1313 Log.w(TAG, "setScreenOnWhilePlaying(true) is ineffective without a SurfaceHolder"); 1314 } 1315 mScreenOnWhilePlaying = screenOn; 1316 updateSurfaceScreenOn(); 1317 } 1318 } 1319 1320 private void stayAwake(boolean awake) { 1321 if (mWakeLock != null) { 1322 if (awake && !mWakeLock.isHeld()) { 1323 mWakeLock.acquire(); 1324 } else if (!awake && mWakeLock.isHeld()) { 1325 mWakeLock.release(); 1326 } 1327 } 1328 mStayAwake = awake; 1329 updateSurfaceScreenOn(); 1330 } 1331 1332 private void updateSurfaceScreenOn() { 1333 if (mSurfaceHolder != null) { 1334 mSurfaceHolder.setKeepScreenOn(mScreenOnWhilePlaying && mStayAwake); 1335 } 1336 } 1337 1338 /** 1339 * Returns the width of the video. 1340 * 1341 * @return the width of the video, or 0 if there is no video, 1342 * no display surface was set, or the width has not been determined 1343 * yet. The OnVideoSizeChangedListener can be registered via 1344 * {@link #setOnVideoSizeChangedListener(OnVideoSizeChangedListener)} 1345 * to provide a notification when the width is available. 1346 */ 1347 public native int getVideoWidth(); 1348 1349 /** 1350 * Returns the height of the video. 1351 * 1352 * @return the height of the video, or 0 if there is no video, 1353 * no display surface was set, or the height has not been determined 1354 * yet. The OnVideoSizeChangedListener can be registered via 1355 * {@link #setOnVideoSizeChangedListener(OnVideoSizeChangedListener)} 1356 * to provide a notification when the height is available. 1357 */ 1358 public native int getVideoHeight(); 1359 1360 /** 1361 * Checks whether the MediaPlayer is playing. 1362 * 1363 * @return true if currently playing, false otherwise 1364 * @throws IllegalStateException if the internal player engine has not been 1365 * initialized or has been released. 1366 */ 1367 public native boolean isPlaying(); 1368 1369 /** 1370 * Change playback speed of audio by resampling the audio. 1371 * <p> 1372 * Specifies resampling as audio mode for variable rate playback, i.e., 1373 * resample the waveform based on the requested playback rate to get 1374 * a new waveform, and play back the new waveform at the original sampling 1375 * frequency. 1376 * When rate is larger than 1.0, pitch becomes higher. 1377 * When rate is smaller than 1.0, pitch becomes lower. 1378 * 1379 * @hide 1380 */ 1381 public static final int PLAYBACK_RATE_AUDIO_MODE_RESAMPLE = 2; 1382 1383 /** 1384 * Change playback speed of audio without changing its pitch. 1385 * <p> 1386 * Specifies time stretching as audio mode for variable rate playback. 1387 * Time stretching changes the duration of the audio samples without 1388 * affecting its pitch. 1389 * <p> 1390 * This mode is only supported for a limited range of playback speed factors, 1391 * e.g. between 1/2x and 2x. 1392 * 1393 * @hide 1394 */ 1395 public static final int PLAYBACK_RATE_AUDIO_MODE_STRETCH = 1; 1396 1397 /** 1398 * Change playback speed of audio without changing its pitch, and 1399 * possibly mute audio if time stretching is not supported for the playback 1400 * speed. 1401 * <p> 1402 * Try to keep audio pitch when changing the playback rate, but allow the 1403 * system to determine how to change audio playback if the rate is out 1404 * of range. 1405 * 1406 * @hide 1407 */ 1408 public static final int PLAYBACK_RATE_AUDIO_MODE_DEFAULT = 0; 1409 1410 /** @hide */ 1411 @IntDef( 1412 value = { 1413 PLAYBACK_RATE_AUDIO_MODE_DEFAULT, 1414 PLAYBACK_RATE_AUDIO_MODE_STRETCH, 1415 PLAYBACK_RATE_AUDIO_MODE_RESAMPLE, 1416 }) 1417 @Retention(RetentionPolicy.SOURCE) 1418 public @interface PlaybackRateAudioMode {} 1419 1420 /** 1421 * Sets playback rate and audio mode. 1422 * 1423 * @param rate the ratio between desired playback rate and normal one. 1424 * @param audioMode audio playback mode. Must be one of the supported 1425 * audio modes. 1426 * 1427 * @throws IllegalStateException if the internal player engine has not been 1428 * initialized. 1429 * @throws IllegalArgumentException if audioMode is not supported. 1430 * 1431 * @hide 1432 */ 1433 @NonNull 1434 public PlaybackParams easyPlaybackParams(float rate, @PlaybackRateAudioMode int audioMode) { 1435 PlaybackParams params = new PlaybackParams(); 1436 params.allowDefaults(); 1437 switch (audioMode) { 1438 case PLAYBACK_RATE_AUDIO_MODE_DEFAULT: 1439 params.setSpeed(rate).setPitch(1.0f); 1440 break; 1441 case PLAYBACK_RATE_AUDIO_MODE_STRETCH: 1442 params.setSpeed(rate).setPitch(1.0f) 1443 .setAudioFallbackMode(params.AUDIO_FALLBACK_MODE_FAIL); 1444 break; 1445 case PLAYBACK_RATE_AUDIO_MODE_RESAMPLE: 1446 params.setSpeed(rate).setPitch(rate); 1447 break; 1448 default: 1449 final String msg = "Audio playback mode " + audioMode + " is not supported"; 1450 throw new IllegalArgumentException(msg); 1451 } 1452 return params; 1453 } 1454 1455 /** 1456 * Sets playback rate using {@link PlaybackParams}. The object sets its internal 1457 * PlaybackParams to the input, except that the object remembers previous speed 1458 * when input speed is zero. This allows the object to resume at previous speed 1459 * when start() is called. Calling it before the object is prepared does not change 1460 * the object state. After the object is prepared, calling it with zero speed is 1461 * equivalent to calling pause(). After the object is prepared, calling it with 1462 * non-zero speed is equivalent to calling start(). 1463 * 1464 * @param params the playback params. 1465 * 1466 * @throws IllegalStateException if the internal player engine has not been 1467 * initialized or has been released. 1468 * @throws IllegalArgumentException if params is not supported. 1469 */ 1470 public native void setPlaybackParams(@NonNull PlaybackParams params); 1471 1472 /** 1473 * Gets the playback params, containing the current playback rate. 1474 * 1475 * @return the playback params. 1476 * @throws IllegalStateException if the internal player engine has not been 1477 * initialized. 1478 */ 1479 @NonNull 1480 public native PlaybackParams getPlaybackParams(); 1481 1482 /** 1483 * Sets A/V sync mode. 1484 * 1485 * @param params the A/V sync params to apply 1486 * 1487 * @throws IllegalStateException if the internal player engine has not been 1488 * initialized. 1489 * @throws IllegalArgumentException if params are not supported. 1490 */ 1491 public native void setSyncParams(@NonNull SyncParams params); 1492 1493 /** 1494 * Gets the A/V sync mode. 1495 * 1496 * @return the A/V sync params 1497 * 1498 * @throws IllegalStateException if the internal player engine has not been 1499 * initialized. 1500 */ 1501 @NonNull 1502 public native SyncParams getSyncParams(); 1503 1504 /** 1505 * Seeks to specified time position. 1506 * 1507 * @param msec the offset in milliseconds from the start to seek to 1508 * @throws IllegalStateException if the internal player engine has not been 1509 * initialized 1510 */ 1511 public native void seekTo(int msec) throws IllegalStateException; 1512 1513 /** 1514 * Get current playback position as a {@link MediaTimestamp}. 1515 * <p> 1516 * The MediaTimestamp represents how the media time correlates to the system time in 1517 * a linear fashion using an anchor and a clock rate. During regular playback, the media 1518 * time moves fairly constantly (though the anchor frame may be rebased to a current 1519 * system time, the linear correlation stays steady). Therefore, this method does not 1520 * need to be called often. 1521 * <p> 1522 * To help users get current playback position, this method always anchors the timestamp 1523 * to the current {@link System#nanoTime system time}, so 1524 * {@link MediaTimestamp#getAnchorMediaTimeUs} can be used as current playback position. 1525 * 1526 * @return a MediaTimestamp object if a timestamp is available, or {@code null} if no timestamp 1527 * is available, e.g. because the media player has not been initialized. 1528 * 1529 * @see MediaTimestamp 1530 */ 1531 @Nullable 1532 public MediaTimestamp getTimestamp() 1533 { 1534 try { 1535 // TODO: get the timestamp from native side 1536 return new MediaTimestamp( 1537 getCurrentPosition() * 1000L, 1538 System.nanoTime(), 1539 isPlaying() ? getPlaybackParams().getSpeed() : 0.f); 1540 } catch (IllegalStateException e) { 1541 return null; 1542 } 1543 } 1544 1545 /** 1546 * Gets the current playback position. 1547 * 1548 * @return the current position in milliseconds 1549 */ 1550 public native int getCurrentPosition(); 1551 1552 /** 1553 * Gets the duration of the file. 1554 * 1555 * @return the duration in milliseconds, if no duration is available 1556 * (for example, if streaming live content), -1 is returned. 1557 */ 1558 public native int getDuration(); 1559 1560 /** 1561 * Gets the media metadata. 1562 * 1563 * @param update_only controls whether the full set of available 1564 * metadata is returned or just the set that changed since the 1565 * last call. See {@see #METADATA_UPDATE_ONLY} and {@see 1566 * #METADATA_ALL}. 1567 * 1568 * @param apply_filter if true only metadata that matches the 1569 * filter is returned. See {@see #APPLY_METADATA_FILTER} and {@see 1570 * #BYPASS_METADATA_FILTER}. 1571 * 1572 * @return The metadata, possibly empty. null if an error occured. 1573 // FIXME: unhide. 1574 * {@hide} 1575 */ 1576 public Metadata getMetadata(final boolean update_only, 1577 final boolean apply_filter) { 1578 Parcel reply = Parcel.obtain(); 1579 Metadata data = new Metadata(); 1580 1581 if (!native_getMetadata(update_only, apply_filter, reply)) { 1582 reply.recycle(); 1583 return null; 1584 } 1585 1586 // Metadata takes over the parcel, don't recycle it unless 1587 // there is an error. 1588 if (!data.parse(reply)) { 1589 reply.recycle(); 1590 return null; 1591 } 1592 return data; 1593 } 1594 1595 /** 1596 * Set a filter for the metadata update notification and update 1597 * retrieval. The caller provides 2 set of metadata keys, allowed 1598 * and blocked. The blocked set always takes precedence over the 1599 * allowed one. 1600 * Metadata.MATCH_ALL and Metadata.MATCH_NONE are 2 sets available as 1601 * shorthands to allow/block all or no metadata. 1602 * 1603 * By default, there is no filter set. 1604 * 1605 * @param allow Is the set of metadata the client is interested 1606 * in receiving new notifications for. 1607 * @param block Is the set of metadata the client is not interested 1608 * in receiving new notifications for. 1609 * @return The call status code. 1610 * 1611 // FIXME: unhide. 1612 * {@hide} 1613 */ 1614 public int setMetadataFilter(Set<Integer> allow, Set<Integer> block) { 1615 // Do our serialization manually instead of calling 1616 // Parcel.writeArray since the sets are made of the same type 1617 // we avoid paying the price of calling writeValue (used by 1618 // writeArray) which burns an extra int per element to encode 1619 // the type. 1620 Parcel request = newRequest(); 1621 1622 // The parcel starts already with an interface token. There 1623 // are 2 filters. Each one starts with a 4bytes number to 1624 // store the len followed by a number of int (4 bytes as well) 1625 // representing the metadata type. 1626 int capacity = request.dataSize() + 4 * (1 + allow.size() + 1 + block.size()); 1627 1628 if (request.dataCapacity() < capacity) { 1629 request.setDataCapacity(capacity); 1630 } 1631 1632 request.writeInt(allow.size()); 1633 for(Integer t: allow) { 1634 request.writeInt(t); 1635 } 1636 request.writeInt(block.size()); 1637 for(Integer t: block) { 1638 request.writeInt(t); 1639 } 1640 return native_setMetadataFilter(request); 1641 } 1642 1643 /** 1644 * Set the MediaPlayer to start when this MediaPlayer finishes playback 1645 * (i.e. reaches the end of the stream). 1646 * The media framework will attempt to transition from this player to 1647 * the next as seamlessly as possible. The next player can be set at 1648 * any time before completion. The next player must be prepared by the 1649 * app, and the application should not call start() on it. 1650 * The next MediaPlayer must be different from 'this'. An exception 1651 * will be thrown if next == this. 1652 * The application may call setNextMediaPlayer(null) to indicate no 1653 * next player should be started at the end of playback. 1654 * If the current player is looping, it will keep looping and the next 1655 * player will not be started. 1656 * 1657 * @param next the player to start after this one completes playback. 1658 * 1659 */ 1660 public native void setNextMediaPlayer(MediaPlayer next); 1661 1662 /** 1663 * Releases resources associated with this MediaPlayer object. 1664 * It is considered good practice to call this method when you're 1665 * done using the MediaPlayer. In particular, whenever an Activity 1666 * of an application is paused (its onPause() method is called), 1667 * or stopped (its onStop() method is called), this method should be 1668 * invoked to release the MediaPlayer object, unless the application 1669 * has a special need to keep the object around. In addition to 1670 * unnecessary resources (such as memory and instances of codecs) 1671 * being held, failure to call this method immediately if a 1672 * MediaPlayer object is no longer needed may also lead to 1673 * continuous battery consumption for mobile devices, and playback 1674 * failure for other applications if no multiple instances of the 1675 * same codec are supported on a device. Even if multiple instances 1676 * of the same codec are supported, some performance degradation 1677 * may be expected when unnecessary multiple instances are used 1678 * at the same time. 1679 */ 1680 public void release() { 1681 baseRelease(); 1682 stayAwake(false); 1683 updateSurfaceScreenOn(); 1684 mOnPreparedListener = null; 1685 mOnBufferingUpdateListener = null; 1686 mOnCompletionListener = null; 1687 mOnSeekCompleteListener = null; 1688 mOnErrorListener = null; 1689 mOnInfoListener = null; 1690 mOnVideoSizeChangedListener = null; 1691 mOnTimedTextListener = null; 1692 if (mTimeProvider != null) { 1693 mTimeProvider.close(); 1694 mTimeProvider = null; 1695 } 1696 mOnSubtitleDataListener = null; 1697 _release(); 1698 } 1699 1700 private native void _release(); 1701 1702 /** 1703 * Resets the MediaPlayer to its uninitialized state. After calling 1704 * this method, you will have to initialize it again by setting the 1705 * data source and calling prepare(). 1706 */ 1707 public void reset() { 1708 mSelectedSubtitleTrackIndex = -1; 1709 synchronized(mOpenSubtitleSources) { 1710 for (final InputStream is: mOpenSubtitleSources) { 1711 try { 1712 is.close(); 1713 } catch (IOException e) { 1714 } 1715 } 1716 mOpenSubtitleSources.clear(); 1717 } 1718 if (mSubtitleController != null) { 1719 mSubtitleController.reset(); 1720 } 1721 if (mTimeProvider != null) { 1722 mTimeProvider.close(); 1723 mTimeProvider = null; 1724 } 1725 1726 stayAwake(false); 1727 _reset(); 1728 // make sure none of the listeners get called anymore 1729 if (mEventHandler != null) { 1730 mEventHandler.removeCallbacksAndMessages(null); 1731 } 1732 1733 synchronized (mIndexTrackPairs) { 1734 mIndexTrackPairs.clear(); 1735 mInbandTrackIndices.clear(); 1736 }; 1737 } 1738 1739 private native void _reset(); 1740 1741 /** 1742 * Sets the audio stream type for this MediaPlayer. See {@link AudioManager} 1743 * for a list of stream types. Must call this method before prepare() or 1744 * prepareAsync() in order for the target stream type to become effective 1745 * thereafter. 1746 * 1747 * @param streamtype the audio stream type 1748 * @see android.media.AudioManager 1749 */ 1750 public void setAudioStreamType(int streamtype) { 1751 baseUpdateAudioAttributes( 1752 new AudioAttributes.Builder().setInternalLegacyStreamType(streamtype).build()); 1753 _setAudioStreamType(streamtype); 1754 mStreamType = streamtype; 1755 } 1756 1757 private native void _setAudioStreamType(int streamtype); 1758 1759 // Keep KEY_PARAMETER_* in sync with include/media/mediaplayer.h 1760 private final static int KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400; 1761 /** 1762 * Sets the parameter indicated by key. 1763 * @param key key indicates the parameter to be set. 1764 * @param value value of the parameter to be set. 1765 * @return true if the parameter is set successfully, false otherwise 1766 * {@hide} 1767 */ 1768 private native boolean setParameter(int key, Parcel value); 1769 1770 /** 1771 * Sets the audio attributes for this MediaPlayer. 1772 * See {@link AudioAttributes} for how to build and configure an instance of this class. 1773 * You must call this method before {@link #prepare()} or {@link #prepareAsync()} in order 1774 * for the audio attributes to become effective thereafter. 1775 * @param attributes a non-null set of audio attributes 1776 */ 1777 public void setAudioAttributes(AudioAttributes attributes) throws IllegalArgumentException { 1778 if (attributes == null) { 1779 final String msg = "Cannot set AudioAttributes to null"; 1780 throw new IllegalArgumentException(msg); 1781 } 1782 baseUpdateAudioAttributes(attributes); 1783 mUsage = attributes.getUsage(); 1784 mBypassInterruptionPolicy = (attributes.getAllFlags() 1785 & AudioAttributes.FLAG_BYPASS_INTERRUPTION_POLICY) != 0; 1786 Parcel pattributes = Parcel.obtain(); 1787 attributes.writeToParcel(pattributes, AudioAttributes.FLATTEN_TAGS); 1788 setParameter(KEY_PARAMETER_AUDIO_ATTRIBUTES, pattributes); 1789 pattributes.recycle(); 1790 } 1791 1792 /** 1793 * Sets the player to be looping or non-looping. 1794 * 1795 * @param looping whether to loop or not 1796 */ 1797 public native void setLooping(boolean looping); 1798 1799 /** 1800 * Checks whether the MediaPlayer is looping or non-looping. 1801 * 1802 * @return true if the MediaPlayer is currently looping, false otherwise 1803 */ 1804 public native boolean isLooping(); 1805 1806 /** 1807 * Sets the volume on this player. 1808 * This API is recommended for balancing the output of audio streams 1809 * within an application. Unless you are writing an application to 1810 * control user settings, this API should be used in preference to 1811 * {@link AudioManager#setStreamVolume(int, int, int)} which sets the volume of ALL streams of 1812 * a particular type. Note that the passed volume values are raw scalars in range 0.0 to 1.0. 1813 * UI controls should be scaled logarithmically. 1814 * 1815 * @param leftVolume left volume scalar 1816 * @param rightVolume right volume scalar 1817 */ 1818 /* 1819 * FIXME: Merge this into javadoc comment above when setVolume(float) is not @hide. 1820 * The single parameter form below is preferred if the channel volumes don't need 1821 * to be set independently. 1822 */ 1823 public void setVolume(float leftVolume, float rightVolume) { 1824 baseSetVolume(leftVolume, rightVolume); 1825 } 1826 1827 @Override 1828 void playerSetVolume(float leftVolume, float rightVolume) { 1829 _setVolume(leftVolume, rightVolume); 1830 } 1831 1832 private native void _setVolume(float leftVolume, float rightVolume); 1833 1834 /** 1835 * Similar, excepts sets volume of all channels to same value. 1836 * @hide 1837 */ 1838 public void setVolume(float volume) { 1839 setVolume(volume, volume); 1840 } 1841 1842 /** 1843 * Sets the audio session ID. 1844 * 1845 * @param sessionId the audio session ID. 1846 * The audio session ID is a system wide unique identifier for the audio stream played by 1847 * this MediaPlayer instance. 1848 * The primary use of the audio session ID is to associate audio effects to a particular 1849 * instance of MediaPlayer: if an audio session ID is provided when creating an audio effect, 1850 * this effect will be applied only to the audio content of media players within the same 1851 * audio session and not to the output mix. 1852 * When created, a MediaPlayer instance automatically generates its own audio session ID. 1853 * However, it is possible to force this player to be part of an already existing audio session 1854 * by calling this method. 1855 * This method must be called before one of the overloaded <code> setDataSource </code> methods. 1856 * @throws IllegalStateException if it is called in an invalid state 1857 */ 1858 public native void setAudioSessionId(int sessionId) throws IllegalArgumentException, IllegalStateException; 1859 1860 /** 1861 * Returns the audio session ID. 1862 * 1863 * @return the audio session ID. {@see #setAudioSessionId(int)} 1864 * Note that the audio session ID is 0 only if a problem occured when the MediaPlayer was contructed. 1865 */ 1866 public native int getAudioSessionId(); 1867 1868 /** 1869 * Attaches an auxiliary effect to the player. A typical auxiliary effect is a reverberation 1870 * effect which can be applied on any sound source that directs a certain amount of its 1871 * energy to this effect. This amount is defined by setAuxEffectSendLevel(). 1872 * See {@link #setAuxEffectSendLevel(float)}. 1873 * <p>After creating an auxiliary effect (e.g. 1874 * {@link android.media.audiofx.EnvironmentalReverb}), retrieve its ID with 1875 * {@link android.media.audiofx.AudioEffect#getId()} and use it when calling this method 1876 * to attach the player to the effect. 1877 * <p>To detach the effect from the player, call this method with a null effect id. 1878 * <p>This method must be called after one of the overloaded <code> setDataSource </code> 1879 * methods. 1880 * @param effectId system wide unique id of the effect to attach 1881 */ 1882 public native void attachAuxEffect(int effectId); 1883 1884 1885 /** 1886 * Sets the send level of the player to the attached auxiliary effect. 1887 * See {@link #attachAuxEffect(int)}. The level value range is 0 to 1.0. 1888 * <p>By default the send level is 0, so even if an effect is attached to the player 1889 * this method must be called for the effect to be applied. 1890 * <p>Note that the passed level value is a raw scalar. UI controls should be scaled 1891 * logarithmically: the gain applied by audio framework ranges from -72dB to 0dB, 1892 * so an appropriate conversion from linear UI input x to level is: 1893 * x == 0 -> level = 0 1894 * 0 < x <= R -> level = 10^(72*(x-R)/20/R) 1895 * @param level send level scalar 1896 */ 1897 public void setAuxEffectSendLevel(float level) { 1898 baseSetAuxEffectSendLevel(level); 1899 } 1900 1901 @Override 1902 int playerSetAuxEffectSendLevel(float level) { 1903 _setAuxEffectSendLevel(level); 1904 return AudioSystem.SUCCESS; 1905 } 1906 1907 private native void _setAuxEffectSendLevel(float level); 1908 1909 /* 1910 * @param request Parcel destinated to the media player. The 1911 * Interface token must be set to the IMediaPlayer 1912 * one to be routed correctly through the system. 1913 * @param reply[out] Parcel that will contain the reply. 1914 * @return The status code. 1915 */ 1916 private native final int native_invoke(Parcel request, Parcel reply); 1917 1918 1919 /* 1920 * @param update_only If true fetch only the set of metadata that have 1921 * changed since the last invocation of getMetadata. 1922 * The set is built using the unfiltered 1923 * notifications the native player sent to the 1924 * MediaPlayerService during that period of 1925 * time. If false, all the metadatas are considered. 1926 * @param apply_filter If true, once the metadata set has been built based on 1927 * the value update_only, the current filter is applied. 1928 * @param reply[out] On return contains the serialized 1929 * metadata. Valid only if the call was successful. 1930 * @return The status code. 1931 */ 1932 private native final boolean native_getMetadata(boolean update_only, 1933 boolean apply_filter, 1934 Parcel reply); 1935 1936 /* 1937 * @param request Parcel with the 2 serialized lists of allowed 1938 * metadata types followed by the one to be 1939 * dropped. Each list starts with an integer 1940 * indicating the number of metadata type elements. 1941 * @return The status code. 1942 */ 1943 private native final int native_setMetadataFilter(Parcel request); 1944 1945 private static native final void native_init(); 1946 private native final void native_setup(Object mediaplayer_this); 1947 private native final void native_finalize(); 1948 1949 /** 1950 * Class for MediaPlayer to return each audio/video/subtitle track's metadata. 1951 * 1952 * @see android.media.MediaPlayer#getTrackInfo 1953 */ 1954 static public class TrackInfo implements Parcelable { 1955 /** 1956 * Gets the track type. 1957 * @return TrackType which indicates if the track is video, audio, timed text. 1958 */ 1959 public int getTrackType() { 1960 return mTrackType; 1961 } 1962 1963 /** 1964 * Gets the language code of the track. 1965 * @return a language code in either way of ISO-639-1 or ISO-639-2. 1966 * When the language is unknown or could not be determined, 1967 * ISO-639-2 language code, "und", is returned. 1968 */ 1969 public String getLanguage() { 1970 String language = mFormat.getString(MediaFormat.KEY_LANGUAGE); 1971 return language == null ? "und" : language; 1972 } 1973 1974 /** 1975 * Gets the {@link MediaFormat} of the track. If the format is 1976 * unknown or could not be determined, null is returned. 1977 */ 1978 public MediaFormat getFormat() { 1979 if (mTrackType == MEDIA_TRACK_TYPE_TIMEDTEXT 1980 || mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) { 1981 return mFormat; 1982 } 1983 return null; 1984 } 1985 1986 public static final int MEDIA_TRACK_TYPE_UNKNOWN = 0; 1987 public static final int MEDIA_TRACK_TYPE_VIDEO = 1; 1988 public static final int MEDIA_TRACK_TYPE_AUDIO = 2; 1989 public static final int MEDIA_TRACK_TYPE_TIMEDTEXT = 3; 1990 public static final int MEDIA_TRACK_TYPE_SUBTITLE = 4; 1991 public static final int MEDIA_TRACK_TYPE_METADATA = 5; 1992 1993 final int mTrackType; 1994 final MediaFormat mFormat; 1995 1996 TrackInfo(Parcel in) { 1997 mTrackType = in.readInt(); 1998 // TODO: parcel in the full MediaFormat; currently we are using createSubtitleFormat 1999 // even for audio/video tracks, meaning we only set the mime and language. 2000 String mime = in.readString(); 2001 String language = in.readString(); 2002 mFormat = MediaFormat.createSubtitleFormat(mime, language); 2003 2004 if (mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) { 2005 mFormat.setInteger(MediaFormat.KEY_IS_AUTOSELECT, in.readInt()); 2006 mFormat.setInteger(MediaFormat.KEY_IS_DEFAULT, in.readInt()); 2007 mFormat.setInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE, in.readInt()); 2008 } 2009 } 2010 2011 /** @hide */ 2012 TrackInfo(int type, MediaFormat format) { 2013 mTrackType = type; 2014 mFormat = format; 2015 } 2016 2017 /** 2018 * {@inheritDoc} 2019 */ 2020 @Override 2021 public int describeContents() { 2022 return 0; 2023 } 2024 2025 /** 2026 * {@inheritDoc} 2027 */ 2028 @Override 2029 public void writeToParcel(Parcel dest, int flags) { 2030 dest.writeInt(mTrackType); 2031 dest.writeString(getLanguage()); 2032 2033 if (mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) { 2034 dest.writeString(mFormat.getString(MediaFormat.KEY_MIME)); 2035 dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_AUTOSELECT)); 2036 dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_DEFAULT)); 2037 dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE)); 2038 } 2039 } 2040 2041 @Override 2042 public String toString() { 2043 StringBuilder out = new StringBuilder(128); 2044 out.append(getClass().getName()); 2045 out.append('{'); 2046 switch (mTrackType) { 2047 case MEDIA_TRACK_TYPE_VIDEO: 2048 out.append("VIDEO"); 2049 break; 2050 case MEDIA_TRACK_TYPE_AUDIO: 2051 out.append("AUDIO"); 2052 break; 2053 case MEDIA_TRACK_TYPE_TIMEDTEXT: 2054 out.append("TIMEDTEXT"); 2055 break; 2056 case MEDIA_TRACK_TYPE_SUBTITLE: 2057 out.append("SUBTITLE"); 2058 break; 2059 default: 2060 out.append("UNKNOWN"); 2061 break; 2062 } 2063 out.append(", " + mFormat.toString()); 2064 out.append("}"); 2065 return out.toString(); 2066 } 2067 2068 /** 2069 * Used to read a TrackInfo from a Parcel. 2070 */ 2071 static final Parcelable.Creator<TrackInfo> CREATOR 2072 = new Parcelable.Creator<TrackInfo>() { 2073 @Override 2074 public TrackInfo createFromParcel(Parcel in) { 2075 return new TrackInfo(in); 2076 } 2077 2078 @Override 2079 public TrackInfo[] newArray(int size) { 2080 return new TrackInfo[size]; 2081 } 2082 }; 2083 2084 }; 2085 2086 // We would like domain specific classes with more informative names than the `first` and `second` 2087 // in generic Pair, but we would also like to avoid creating new/trivial classes. As a compromise 2088 // we document the meanings of `first` and `second` here: 2089 // 2090 // Pair.first - inband track index; non-null iff representing an inband track. 2091 // Pair.second - a SubtitleTrack registered with mSubtitleController; non-null iff representing 2092 // an inband subtitle track or any out-of-band track (subtitle or timedtext). 2093 private Vector<Pair<Integer, SubtitleTrack>> mIndexTrackPairs = new Vector<>(); 2094 private BitSet mInbandTrackIndices = new BitSet(); 2095 2096 /** 2097 * Returns an array of track information. 2098 * 2099 * @return Array of track info. The total number of tracks is the array length. 2100 * Must be called again if an external timed text source has been added after any of the 2101 * addTimedTextSource methods are called. 2102 * @throws IllegalStateException if it is called in an invalid state. 2103 */ 2104 public TrackInfo[] getTrackInfo() throws IllegalStateException { 2105 TrackInfo trackInfo[] = getInbandTrackInfo(); 2106 // add out-of-band tracks 2107 synchronized (mIndexTrackPairs) { 2108 TrackInfo allTrackInfo[] = new TrackInfo[mIndexTrackPairs.size()]; 2109 for (int i = 0; i < allTrackInfo.length; i++) { 2110 Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i); 2111 if (p.first != null) { 2112 // inband track 2113 allTrackInfo[i] = trackInfo[p.first]; 2114 } else { 2115 SubtitleTrack track = p.second; 2116 allTrackInfo[i] = new TrackInfo(track.getTrackType(), track.getFormat()); 2117 } 2118 } 2119 return allTrackInfo; 2120 } 2121 } 2122 2123 private TrackInfo[] getInbandTrackInfo() throws IllegalStateException { 2124 Parcel request = Parcel.obtain(); 2125 Parcel reply = Parcel.obtain(); 2126 try { 2127 request.writeInterfaceToken(IMEDIA_PLAYER); 2128 request.writeInt(INVOKE_ID_GET_TRACK_INFO); 2129 invoke(request, reply); 2130 TrackInfo trackInfo[] = reply.createTypedArray(TrackInfo.CREATOR); 2131 return trackInfo; 2132 } finally { 2133 request.recycle(); 2134 reply.recycle(); 2135 } 2136 } 2137 2138 /* Do not change these values without updating their counterparts 2139 * in include/media/stagefright/MediaDefs.h and media/libstagefright/MediaDefs.cpp! 2140 */ 2141 /** 2142 * MIME type for SubRip (SRT) container. Used in addTimedTextSource APIs. 2143 */ 2144 public static final String MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip"; 2145 2146 /** 2147 * MIME type for WebVTT subtitle data. 2148 * @hide 2149 */ 2150 public static final String MEDIA_MIMETYPE_TEXT_VTT = "text/vtt"; 2151 2152 /** 2153 * MIME type for CEA-608 closed caption data. 2154 * @hide 2155 */ 2156 public static final String MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608"; 2157 2158 /** 2159 * MIME type for CEA-708 closed caption data. 2160 * @hide 2161 */ 2162 public static final String MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708"; 2163 2164 /* 2165 * A helper function to check if the mime type is supported by media framework. 2166 */ 2167 private static boolean availableMimeTypeForExternalSource(String mimeType) { 2168 if (MEDIA_MIMETYPE_TEXT_SUBRIP.equals(mimeType)) { 2169 return true; 2170 } 2171 return false; 2172 } 2173 2174 private SubtitleController mSubtitleController; 2175 2176 /** @hide */ 2177 public void setSubtitleAnchor( 2178 SubtitleController controller, 2179 SubtitleController.Anchor anchor) { 2180 // TODO: create SubtitleController in MediaPlayer 2181 mSubtitleController = controller; 2182 mSubtitleController.setAnchor(anchor); 2183 } 2184 2185 /** 2186 * The private version of setSubtitleAnchor is used internally to set mSubtitleController if 2187 * necessary when clients don't provide their own SubtitleControllers using the public version 2188 * {@link #setSubtitleAnchor(SubtitleController, Anchor)} (e.g. {@link VideoView} provides one). 2189 */ 2190 private synchronized void setSubtitleAnchor() { 2191 if (mSubtitleController == null) { 2192 final HandlerThread thread = new HandlerThread("SetSubtitleAnchorThread"); 2193 thread.start(); 2194 Handler handler = new Handler(thread.getLooper()); 2195 handler.post(new Runnable() { 2196 @Override 2197 public void run() { 2198 Context context = ActivityThread.currentApplication(); 2199 mSubtitleController = new SubtitleController(context, mTimeProvider, MediaPlayer.this); 2200 mSubtitleController.setAnchor(new Anchor() { 2201 @Override 2202 public void setSubtitleWidget(RenderingWidget subtitleWidget) { 2203 } 2204 2205 @Override 2206 public Looper getSubtitleLooper() { 2207 return Looper.getMainLooper(); 2208 } 2209 }); 2210 thread.getLooper().quitSafely(); 2211 } 2212 }); 2213 try { 2214 thread.join(); 2215 } catch (InterruptedException e) { 2216 Thread.currentThread().interrupt(); 2217 Log.w(TAG, "failed to join SetSubtitleAnchorThread"); 2218 } 2219 } 2220 } 2221 2222 private int mSelectedSubtitleTrackIndex = -1; 2223 private Vector<InputStream> mOpenSubtitleSources; 2224 2225 private OnSubtitleDataListener mSubtitleDataListener = new OnSubtitleDataListener() { 2226 @Override 2227 public void onSubtitleData(MediaPlayer mp, SubtitleData data) { 2228 int index = data.getTrackIndex(); 2229 synchronized (mIndexTrackPairs) { 2230 for (Pair<Integer, SubtitleTrack> p : mIndexTrackPairs) { 2231 if (p.first != null && p.first == index && p.second != null) { 2232 // inband subtitle track that owns data 2233 SubtitleTrack track = p.second; 2234 track.onData(data); 2235 } 2236 } 2237 } 2238 } 2239 }; 2240 2241 /** @hide */ 2242 @Override 2243 public void onSubtitleTrackSelected(SubtitleTrack track) { 2244 if (mSelectedSubtitleTrackIndex >= 0) { 2245 try { 2246 selectOrDeselectInbandTrack(mSelectedSubtitleTrackIndex, false); 2247 } catch (IllegalStateException e) { 2248 } 2249 mSelectedSubtitleTrackIndex = -1; 2250 } 2251 setOnSubtitleDataListener(null); 2252 if (track == null) { 2253 return; 2254 } 2255 2256 synchronized (mIndexTrackPairs) { 2257 for (Pair<Integer, SubtitleTrack> p : mIndexTrackPairs) { 2258 if (p.first != null && p.second == track) { 2259 // inband subtitle track that is selected 2260 mSelectedSubtitleTrackIndex = p.first; 2261 break; 2262 } 2263 } 2264 } 2265 2266 if (mSelectedSubtitleTrackIndex >= 0) { 2267 try { 2268 selectOrDeselectInbandTrack(mSelectedSubtitleTrackIndex, true); 2269 } catch (IllegalStateException e) { 2270 } 2271 setOnSubtitleDataListener(mSubtitleDataListener); 2272 } 2273 // no need to select out-of-band tracks 2274 } 2275 2276 /** @hide */ 2277 public void addSubtitleSource(InputStream is, MediaFormat format) 2278 throws IllegalStateException 2279 { 2280 final InputStream fIs = is; 2281 final MediaFormat fFormat = format; 2282 2283 if (is != null) { 2284 // Ensure all input streams are closed. It is also a handy 2285 // way to implement timeouts in the future. 2286 synchronized(mOpenSubtitleSources) { 2287 mOpenSubtitleSources.add(is); 2288 } 2289 } else { 2290 Log.w(TAG, "addSubtitleSource called with null InputStream"); 2291 } 2292 2293 getMediaTimeProvider(); 2294 2295 // process each subtitle in its own thread 2296 final HandlerThread thread = new HandlerThread("SubtitleReadThread", 2297 Process.THREAD_PRIORITY_BACKGROUND + Process.THREAD_PRIORITY_MORE_FAVORABLE); 2298 thread.start(); 2299 Handler handler = new Handler(thread.getLooper()); 2300 handler.post(new Runnable() { 2301 private int addTrack() { 2302 if (fIs == null || mSubtitleController == null) { 2303 return MEDIA_INFO_UNSUPPORTED_SUBTITLE; 2304 } 2305 2306 SubtitleTrack track = mSubtitleController.addTrack(fFormat); 2307 if (track == null) { 2308 return MEDIA_INFO_UNSUPPORTED_SUBTITLE; 2309 } 2310 2311 // TODO: do the conversion in the subtitle track 2312 Scanner scanner = new Scanner(fIs, "UTF-8"); 2313 String contents = scanner.useDelimiter("\\A").next(); 2314 synchronized(mOpenSubtitleSources) { 2315 mOpenSubtitleSources.remove(fIs); 2316 } 2317 scanner.close(); 2318 synchronized (mIndexTrackPairs) { 2319 mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(null, track)); 2320 } 2321 Handler h = mTimeProvider.mEventHandler; 2322 int what = TimeProvider.NOTIFY; 2323 int arg1 = TimeProvider.NOTIFY_TRACK_DATA; 2324 Pair<SubtitleTrack, byte[]> trackData = Pair.create(track, contents.getBytes()); 2325 Message m = h.obtainMessage(what, arg1, 0, trackData); 2326 h.sendMessage(m); 2327 return MEDIA_INFO_EXTERNAL_METADATA_UPDATE; 2328 } 2329 2330 public void run() { 2331 int res = addTrack(); 2332 if (mEventHandler != null) { 2333 Message m = mEventHandler.obtainMessage(MEDIA_INFO, res, 0, null); 2334 mEventHandler.sendMessage(m); 2335 } 2336 thread.getLooper().quitSafely(); 2337 } 2338 }); 2339 } 2340 2341 private void scanInternalSubtitleTracks() { 2342 if (mSubtitleController == null) { 2343 Log.d(TAG, "setSubtitleAnchor in MediaPlayer"); 2344 setSubtitleAnchor(); 2345 } 2346 2347 populateInbandTracks(); 2348 2349 if (mSubtitleController != null) { 2350 mSubtitleController.selectDefaultTrack(); 2351 } 2352 } 2353 2354 private void populateInbandTracks() { 2355 TrackInfo[] tracks = getInbandTrackInfo(); 2356 synchronized (mIndexTrackPairs) { 2357 for (int i = 0; i < tracks.length; i++) { 2358 if (mInbandTrackIndices.get(i)) { 2359 continue; 2360 } else { 2361 mInbandTrackIndices.set(i); 2362 } 2363 2364 // newly appeared inband track 2365 if (tracks[i].getTrackType() == TrackInfo.MEDIA_TRACK_TYPE_SUBTITLE) { 2366 SubtitleTrack track = mSubtitleController.addTrack( 2367 tracks[i].getFormat()); 2368 mIndexTrackPairs.add(Pair.create(i, track)); 2369 } else { 2370 mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(i, null)); 2371 } 2372 } 2373 } 2374 } 2375 2376 /* TODO: Limit the total number of external timed text source to a reasonable number. 2377 */ 2378 /** 2379 * Adds an external timed text source file. 2380 * 2381 * Currently supported format is SubRip with the file extension .srt, case insensitive. 2382 * Note that a single external timed text source may contain multiple tracks in it. 2383 * One can find the total number of available tracks using {@link #getTrackInfo()} to see what 2384 * additional tracks become available after this method call. 2385 * 2386 * @param path The file path of external timed text source file. 2387 * @param mimeType The mime type of the file. Must be one of the mime types listed above. 2388 * @throws IOException if the file cannot be accessed or is corrupted. 2389 * @throws IllegalArgumentException if the mimeType is not supported. 2390 * @throws IllegalStateException if called in an invalid state. 2391 */ 2392 public void addTimedTextSource(String path, String mimeType) 2393 throws IOException, IllegalArgumentException, IllegalStateException { 2394 if (!availableMimeTypeForExternalSource(mimeType)) { 2395 final String msg = "Illegal mimeType for timed text source: " + mimeType; 2396 throw new IllegalArgumentException(msg); 2397 } 2398 2399 File file = new File(path); 2400 if (file.exists()) { 2401 FileInputStream is = new FileInputStream(file); 2402 FileDescriptor fd = is.getFD(); 2403 addTimedTextSource(fd, mimeType); 2404 is.close(); 2405 } else { 2406 // We do not support the case where the path is not a file. 2407 throw new IOException(path); 2408 } 2409 } 2410 2411 /** 2412 * Adds an external timed text source file (Uri). 2413 * 2414 * Currently supported format is SubRip with the file extension .srt, case insensitive. 2415 * Note that a single external timed text source may contain multiple tracks in it. 2416 * One can find the total number of available tracks using {@link #getTrackInfo()} to see what 2417 * additional tracks become available after this method call. 2418 * 2419 * @param context the Context to use when resolving the Uri 2420 * @param uri the Content URI of the data you want to play 2421 * @param mimeType The mime type of the file. Must be one of the mime types listed above. 2422 * @throws IOException if the file cannot be accessed or is corrupted. 2423 * @throws IllegalArgumentException if the mimeType is not supported. 2424 * @throws IllegalStateException if called in an invalid state. 2425 */ 2426 public void addTimedTextSource(Context context, Uri uri, String mimeType) 2427 throws IOException, IllegalArgumentException, IllegalStateException { 2428 String scheme = uri.getScheme(); 2429 if(scheme == null || scheme.equals("file")) { 2430 addTimedTextSource(uri.getPath(), mimeType); 2431 return; 2432 } 2433 2434 AssetFileDescriptor fd = null; 2435 try { 2436 ContentResolver resolver = context.getContentResolver(); 2437 fd = resolver.openAssetFileDescriptor(uri, "r"); 2438 if (fd == null) { 2439 return; 2440 } 2441 addTimedTextSource(fd.getFileDescriptor(), mimeType); 2442 return; 2443 } catch (SecurityException ex) { 2444 } catch (IOException ex) { 2445 } finally { 2446 if (fd != null) { 2447 fd.close(); 2448 } 2449 } 2450 } 2451 2452 /** 2453 * Adds an external timed text source file (FileDescriptor). 2454 * 2455 * It is the caller's responsibility to close the file descriptor. 2456 * It is safe to do so as soon as this call returns. 2457 * 2458 * Currently supported format is SubRip. Note that a single external timed text source may 2459 * contain multiple tracks in it. One can find the total number of available tracks 2460 * using {@link #getTrackInfo()} to see what additional tracks become available 2461 * after this method call. 2462 * 2463 * @param fd the FileDescriptor for the file you want to play 2464 * @param mimeType The mime type of the file. Must be one of the mime types listed above. 2465 * @throws IllegalArgumentException if the mimeType is not supported. 2466 * @throws IllegalStateException if called in an invalid state. 2467 */ 2468 public void addTimedTextSource(FileDescriptor fd, String mimeType) 2469 throws IllegalArgumentException, IllegalStateException { 2470 // intentionally less than LONG_MAX 2471 addTimedTextSource(fd, 0, 0x7ffffffffffffffL, mimeType); 2472 } 2473 2474 /** 2475 * Adds an external timed text file (FileDescriptor). 2476 * 2477 * It is the caller's responsibility to close the file descriptor. 2478 * It is safe to do so as soon as this call returns. 2479 * 2480 * Currently supported format is SubRip. Note that a single external timed text source may 2481 * contain multiple tracks in it. One can find the total number of available tracks 2482 * using {@link #getTrackInfo()} to see what additional tracks become available 2483 * after this method call. 2484 * 2485 * @param fd the FileDescriptor for the file you want to play 2486 * @param offset the offset into the file where the data to be played starts, in bytes 2487 * @param length the length in bytes of the data to be played 2488 * @param mime The mime type of the file. Must be one of the mime types listed above. 2489 * @throws IllegalArgumentException if the mimeType is not supported. 2490 * @throws IllegalStateException if called in an invalid state. 2491 */ 2492 public void addTimedTextSource(FileDescriptor fd, long offset, long length, String mime) 2493 throws IllegalArgumentException, IllegalStateException { 2494 if (!availableMimeTypeForExternalSource(mime)) { 2495 throw new IllegalArgumentException("Illegal mimeType for timed text source: " + mime); 2496 } 2497 2498 final FileDescriptor dupedFd; 2499 try { 2500 dupedFd = Libcore.os.dup(fd); 2501 } catch (ErrnoException ex) { 2502 Log.e(TAG, ex.getMessage(), ex); 2503 throw new RuntimeException(ex); 2504 } 2505 2506 final MediaFormat fFormat = new MediaFormat(); 2507 fFormat.setString(MediaFormat.KEY_MIME, mime); 2508 fFormat.setInteger(MediaFormat.KEY_IS_TIMED_TEXT, 1); 2509 2510 // A MediaPlayer created by a VideoView should already have its mSubtitleController set. 2511 if (mSubtitleController == null) { 2512 setSubtitleAnchor(); 2513 } 2514 2515 if (!mSubtitleController.hasRendererFor(fFormat)) { 2516 // test and add not atomic 2517 Context context = ActivityThread.currentApplication(); 2518 mSubtitleController.registerRenderer(new SRTRenderer(context, mEventHandler)); 2519 } 2520 final SubtitleTrack track = mSubtitleController.addTrack(fFormat); 2521 synchronized (mIndexTrackPairs) { 2522 mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(null, track)); 2523 } 2524 2525 getMediaTimeProvider(); 2526 2527 final long offset2 = offset; 2528 final long length2 = length; 2529 final HandlerThread thread = new HandlerThread( 2530 "TimedTextReadThread", 2531 Process.THREAD_PRIORITY_BACKGROUND + Process.THREAD_PRIORITY_MORE_FAVORABLE); 2532 thread.start(); 2533 Handler handler = new Handler(thread.getLooper()); 2534 handler.post(new Runnable() { 2535 private int addTrack() { 2536 final ByteArrayOutputStream bos = new ByteArrayOutputStream(); 2537 try { 2538 Libcore.os.lseek(dupedFd, offset2, OsConstants.SEEK_SET); 2539 byte[] buffer = new byte[4096]; 2540 for (long total = 0; total < length2;) { 2541 int bytesToRead = (int) Math.min(buffer.length, length2 - total); 2542 int bytes = IoBridge.read(dupedFd, buffer, 0, bytesToRead); 2543 if (bytes < 0) { 2544 break; 2545 } else { 2546 bos.write(buffer, 0, bytes); 2547 total += bytes; 2548 } 2549 } 2550 Handler h = mTimeProvider.mEventHandler; 2551 int what = TimeProvider.NOTIFY; 2552 int arg1 = TimeProvider.NOTIFY_TRACK_DATA; 2553 Pair<SubtitleTrack, byte[]> trackData = Pair.create(track, bos.toByteArray()); 2554 Message m = h.obtainMessage(what, arg1, 0, trackData); 2555 h.sendMessage(m); 2556 return MEDIA_INFO_EXTERNAL_METADATA_UPDATE; 2557 } catch (Exception e) { 2558 Log.e(TAG, e.getMessage(), e); 2559 return MEDIA_INFO_TIMED_TEXT_ERROR; 2560 } finally { 2561 try { 2562 Libcore.os.close(dupedFd); 2563 } catch (ErrnoException e) { 2564 Log.e(TAG, e.getMessage(), e); 2565 } 2566 } 2567 } 2568 2569 public void run() { 2570 int res = addTrack(); 2571 if (mEventHandler != null) { 2572 Message m = mEventHandler.obtainMessage(MEDIA_INFO, res, 0, null); 2573 mEventHandler.sendMessage(m); 2574 } 2575 thread.getLooper().quitSafely(); 2576 } 2577 }); 2578 } 2579 2580 /** 2581 * Returns the index of the audio, video, or subtitle track currently selected for playback, 2582 * The return value is an index into the array returned by {@link #getTrackInfo()}, and can 2583 * be used in calls to {@link #selectTrack(int)} or {@link #deselectTrack(int)}. 2584 * 2585 * @param trackType should be one of {@link TrackInfo#MEDIA_TRACK_TYPE_VIDEO}, 2586 * {@link TrackInfo#MEDIA_TRACK_TYPE_AUDIO}, or 2587 * {@link TrackInfo#MEDIA_TRACK_TYPE_SUBTITLE} 2588 * @return index of the audio, video, or subtitle track currently selected for playback; 2589 * a negative integer is returned when there is no selected track for {@code trackType} or 2590 * when {@code trackType} is not one of audio, video, or subtitle. 2591 * @throws IllegalStateException if called after {@link #release()} 2592 * 2593 * @see #getTrackInfo() 2594 * @see #selectTrack(int) 2595 * @see #deselectTrack(int) 2596 */ 2597 public int getSelectedTrack(int trackType) throws IllegalStateException { 2598 if (mSubtitleController != null 2599 && (trackType == TrackInfo.MEDIA_TRACK_TYPE_SUBTITLE 2600 || trackType == TrackInfo.MEDIA_TRACK_TYPE_TIMEDTEXT)) { 2601 SubtitleTrack subtitleTrack = mSubtitleController.getSelectedTrack(); 2602 if (subtitleTrack != null) { 2603 synchronized (mIndexTrackPairs) { 2604 for (int i = 0; i < mIndexTrackPairs.size(); i++) { 2605 Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i); 2606 if (p.second == subtitleTrack && subtitleTrack.getTrackType() == trackType) { 2607 return i; 2608 } 2609 } 2610 } 2611 } 2612 } 2613 2614 Parcel request = Parcel.obtain(); 2615 Parcel reply = Parcel.obtain(); 2616 try { 2617 request.writeInterfaceToken(IMEDIA_PLAYER); 2618 request.writeInt(INVOKE_ID_GET_SELECTED_TRACK); 2619 request.writeInt(trackType); 2620 invoke(request, reply); 2621 int inbandTrackIndex = reply.readInt(); 2622 synchronized (mIndexTrackPairs) { 2623 for (int i = 0; i < mIndexTrackPairs.size(); i++) { 2624 Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i); 2625 if (p.first != null && p.first == inbandTrackIndex) { 2626 return i; 2627 } 2628 } 2629 } 2630 return -1; 2631 } finally { 2632 request.recycle(); 2633 reply.recycle(); 2634 } 2635 } 2636 2637 /** 2638 * Selects a track. 2639 * <p> 2640 * If a MediaPlayer is in invalid state, it throws an IllegalStateException exception. 2641 * If a MediaPlayer is in <em>Started</em> state, the selected track is presented immediately. 2642 * If a MediaPlayer is not in Started state, it just marks the track to be played. 2643 * </p> 2644 * <p> 2645 * In any valid state, if it is called multiple times on the same type of track (ie. Video, 2646 * Audio, Timed Text), the most recent one will be chosen. 2647 * </p> 2648 * <p> 2649 * The first audio and video tracks are selected by default if available, even though 2650 * this method is not called. However, no timed text track will be selected until 2651 * this function is called. 2652 * </p> 2653 * <p> 2654 * Currently, only timed text tracks or audio tracks can be selected via this method. 2655 * In addition, the support for selecting an audio track at runtime is pretty limited 2656 * in that an audio track can only be selected in the <em>Prepared</em> state. 2657 * </p> 2658 * @param index the index of the track to be selected. The valid range of the index 2659 * is 0..total number of track - 1. The total number of tracks as well as the type of 2660 * each individual track can be found by calling {@link #getTrackInfo()} method. 2661 * @throws IllegalStateException if called in an invalid state. 2662 * 2663 * @see android.media.MediaPlayer#getTrackInfo 2664 */ 2665 public void selectTrack(int index) throws IllegalStateException { 2666 selectOrDeselectTrack(index, true /* select */); 2667 } 2668 2669 /** 2670 * Deselect a track. 2671 * <p> 2672 * Currently, the track must be a timed text track and no audio or video tracks can be 2673 * deselected. If the timed text track identified by index has not been 2674 * selected before, it throws an exception. 2675 * </p> 2676 * @param index the index of the track to be deselected. The valid range of the index 2677 * is 0..total number of tracks - 1. The total number of tracks as well as the type of 2678 * each individual track can be found by calling {@link #getTrackInfo()} method. 2679 * @throws IllegalStateException if called in an invalid state. 2680 * 2681 * @see android.media.MediaPlayer#getTrackInfo 2682 */ 2683 public void deselectTrack(int index) throws IllegalStateException { 2684 selectOrDeselectTrack(index, false /* select */); 2685 } 2686 2687 private void selectOrDeselectTrack(int index, boolean select) 2688 throws IllegalStateException { 2689 // handle subtitle track through subtitle controller 2690 populateInbandTracks(); 2691 2692 Pair<Integer,SubtitleTrack> p = null; 2693 try { 2694 p = mIndexTrackPairs.get(index); 2695 } catch (ArrayIndexOutOfBoundsException e) { 2696 // ignore bad index 2697 return; 2698 } 2699 2700 SubtitleTrack track = p.second; 2701 if (track == null) { 2702 // inband (de)select 2703 selectOrDeselectInbandTrack(p.first, select); 2704 return; 2705 } 2706 2707 if (mSubtitleController == null) { 2708 return; 2709 } 2710 2711 if (!select) { 2712 // out-of-band deselect 2713 if (mSubtitleController.getSelectedTrack() == track) { 2714 mSubtitleController.selectTrack(null); 2715 } else { 2716 Log.w(TAG, "trying to deselect track that was not selected"); 2717 } 2718 return; 2719 } 2720 2721 // out-of-band select 2722 if (track.getTrackType() == TrackInfo.MEDIA_TRACK_TYPE_TIMEDTEXT) { 2723 int ttIndex = getSelectedTrack(TrackInfo.MEDIA_TRACK_TYPE_TIMEDTEXT); 2724 synchronized (mIndexTrackPairs) { 2725 if (ttIndex >= 0 && ttIndex < mIndexTrackPairs.size()) { 2726 Pair<Integer,SubtitleTrack> p2 = mIndexTrackPairs.get(ttIndex); 2727 if (p2.first != null && p2.second == null) { 2728 // deselect inband counterpart 2729 selectOrDeselectInbandTrack(p2.first, false); 2730 } 2731 } 2732 } 2733 } 2734 mSubtitleController.selectTrack(track); 2735 } 2736 2737 private void selectOrDeselectInbandTrack(int index, boolean select) 2738 throws IllegalStateException { 2739 Parcel request = Parcel.obtain(); 2740 Parcel reply = Parcel.obtain(); 2741 try { 2742 request.writeInterfaceToken(IMEDIA_PLAYER); 2743 request.writeInt(select? INVOKE_ID_SELECT_TRACK: INVOKE_ID_DESELECT_TRACK); 2744 request.writeInt(index); 2745 invoke(request, reply); 2746 } finally { 2747 request.recycle(); 2748 reply.recycle(); 2749 } 2750 } 2751 2752 2753 /** 2754 * @param reply Parcel with audio/video duration info for battery 2755 tracking usage 2756 * @return The status code. 2757 * {@hide} 2758 */ 2759 public native static int native_pullBatteryData(Parcel reply); 2760 2761 /** 2762 * Sets the target UDP re-transmit endpoint for the low level player. 2763 * Generally, the address portion of the endpoint is an IP multicast 2764 * address, although a unicast address would be equally valid. When a valid 2765 * retransmit endpoint has been set, the media player will not decode and 2766 * render the media presentation locally. Instead, the player will attempt 2767 * to re-multiplex its media data using the Android@Home RTP profile and 2768 * re-transmit to the target endpoint. Receiver devices (which may be 2769 * either the same as the transmitting device or different devices) may 2770 * instantiate, prepare, and start a receiver player using a setDataSource 2771 * URL of the form... 2772 * 2773 * aahRX://<multicastIP>:<port> 2774 * 2775 * to receive, decode and render the re-transmitted content. 2776 * 2777 * setRetransmitEndpoint may only be called before setDataSource has been 2778 * called; while the player is in the Idle state. 2779 * 2780 * @param endpoint the address and UDP port of the re-transmission target or 2781 * null if no re-transmission is to be performed. 2782 * @throws IllegalStateException if it is called in an invalid state 2783 * @throws IllegalArgumentException if the retransmit endpoint is supplied, 2784 * but invalid. 2785 * 2786 * {@hide} pending API council 2787 */ 2788 public void setRetransmitEndpoint(InetSocketAddress endpoint) 2789 throws IllegalStateException, IllegalArgumentException 2790 { 2791 String addrString = null; 2792 int port = 0; 2793 2794 if (null != endpoint) { 2795 addrString = endpoint.getAddress().getHostAddress(); 2796 port = endpoint.getPort(); 2797 } 2798 2799 int ret = native_setRetransmitEndpoint(addrString, port); 2800 if (ret != 0) { 2801 throw new IllegalArgumentException("Illegal re-transmit endpoint; native ret " + ret); 2802 } 2803 } 2804 2805 private native final int native_setRetransmitEndpoint(String addrString, int port); 2806 2807 @Override 2808 protected void finalize() { 2809 baseRelease(); 2810 native_finalize(); 2811 } 2812 2813 /* Do not change these values without updating their counterparts 2814 * in include/media/mediaplayer.h! 2815 */ 2816 private static final int MEDIA_NOP = 0; // interface test message 2817 private static final int MEDIA_PREPARED = 1; 2818 private static final int MEDIA_PLAYBACK_COMPLETE = 2; 2819 private static final int MEDIA_BUFFERING_UPDATE = 3; 2820 private static final int MEDIA_SEEK_COMPLETE = 4; 2821 private static final int MEDIA_SET_VIDEO_SIZE = 5; 2822 private static final int MEDIA_STARTED = 6; 2823 private static final int MEDIA_PAUSED = 7; 2824 private static final int MEDIA_STOPPED = 8; 2825 private static final int MEDIA_SKIPPED = 9; 2826 private static final int MEDIA_TIMED_TEXT = 99; 2827 private static final int MEDIA_ERROR = 100; 2828 private static final int MEDIA_INFO = 200; 2829 private static final int MEDIA_SUBTITLE_DATA = 201; 2830 private static final int MEDIA_META_DATA = 202; 2831 2832 private TimeProvider mTimeProvider; 2833 2834 /** @hide */ 2835 public MediaTimeProvider getMediaTimeProvider() { 2836 if (mTimeProvider == null) { 2837 mTimeProvider = new TimeProvider(this); 2838 } 2839 return mTimeProvider; 2840 } 2841 2842 private class EventHandler extends Handler 2843 { 2844 private MediaPlayer mMediaPlayer; 2845 2846 public EventHandler(MediaPlayer mp, Looper looper) { 2847 super(looper); 2848 mMediaPlayer = mp; 2849 } 2850 2851 @Override 2852 public void handleMessage(Message msg) { 2853 if (mMediaPlayer.mNativeContext == 0) { 2854 Log.w(TAG, "mediaplayer went away with unhandled events"); 2855 return; 2856 } 2857 switch(msg.what) { 2858 case MEDIA_PREPARED: 2859 try { 2860 scanInternalSubtitleTracks(); 2861 } catch (RuntimeException e) { 2862 // send error message instead of crashing; 2863 // send error message instead of inlining a call to onError 2864 // to avoid code duplication. 2865 Message msg2 = obtainMessage( 2866 MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, MEDIA_ERROR_UNSUPPORTED, null); 2867 sendMessage(msg2); 2868 } 2869 OnPreparedListener onPreparedListener = mOnPreparedListener; 2870 if (onPreparedListener != null) 2871 onPreparedListener.onPrepared(mMediaPlayer); 2872 return; 2873 2874 case MEDIA_PLAYBACK_COMPLETE: 2875 { 2876 OnCompletionListener onCompletionListener = mOnCompletionListener; 2877 if (onCompletionListener != null) 2878 onCompletionListener.onCompletion(mMediaPlayer); 2879 } 2880 stayAwake(false); 2881 return; 2882 2883 case MEDIA_STOPPED: 2884 { 2885 TimeProvider timeProvider = mTimeProvider; 2886 if (timeProvider != null) { 2887 timeProvider.onStopped(); 2888 } 2889 } 2890 break; 2891 2892 case MEDIA_STARTED: 2893 case MEDIA_PAUSED: 2894 { 2895 TimeProvider timeProvider = mTimeProvider; 2896 if (timeProvider != null) { 2897 timeProvider.onPaused(msg.what == MEDIA_PAUSED); 2898 } 2899 } 2900 break; 2901 2902 case MEDIA_BUFFERING_UPDATE: 2903 OnBufferingUpdateListener onBufferingUpdateListener = mOnBufferingUpdateListener; 2904 if (onBufferingUpdateListener != null) 2905 onBufferingUpdateListener.onBufferingUpdate(mMediaPlayer, msg.arg1); 2906 return; 2907 2908 case MEDIA_SEEK_COMPLETE: 2909 OnSeekCompleteListener onSeekCompleteListener = mOnSeekCompleteListener; 2910 if (onSeekCompleteListener != null) { 2911 onSeekCompleteListener.onSeekComplete(mMediaPlayer); 2912 } 2913 // fall through 2914 2915 case MEDIA_SKIPPED: 2916 { 2917 TimeProvider timeProvider = mTimeProvider; 2918 if (timeProvider != null) { 2919 timeProvider.onSeekComplete(mMediaPlayer); 2920 } 2921 } 2922 return; 2923 2924 case MEDIA_SET_VIDEO_SIZE: 2925 OnVideoSizeChangedListener onVideoSizeChangedListener = mOnVideoSizeChangedListener; 2926 if (onVideoSizeChangedListener != null) { 2927 onVideoSizeChangedListener.onVideoSizeChanged( 2928 mMediaPlayer, msg.arg1, msg.arg2); 2929 } 2930 return; 2931 2932 case MEDIA_ERROR: 2933 Log.e(TAG, "Error (" + msg.arg1 + "," + msg.arg2 + ")"); 2934 boolean error_was_handled = false; 2935 OnErrorListener onErrorListener = mOnErrorListener; 2936 if (onErrorListener != null) { 2937 error_was_handled = onErrorListener.onError(mMediaPlayer, msg.arg1, msg.arg2); 2938 } 2939 { 2940 OnCompletionListener onCompletionListener = mOnCompletionListener; 2941 if (onCompletionListener != null && ! error_was_handled) { 2942 onCompletionListener.onCompletion(mMediaPlayer); 2943 } 2944 } 2945 stayAwake(false); 2946 return; 2947 2948 case MEDIA_INFO: 2949 switch (msg.arg1) { 2950 case MEDIA_INFO_VIDEO_TRACK_LAGGING: 2951 Log.i(TAG, "Info (" + msg.arg1 + "," + msg.arg2 + ")"); 2952 break; 2953 case MEDIA_INFO_METADATA_UPDATE: 2954 try { 2955 scanInternalSubtitleTracks(); 2956 } catch (RuntimeException e) { 2957 Message msg2 = obtainMessage( 2958 MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, MEDIA_ERROR_UNSUPPORTED, null); 2959 sendMessage(msg2); 2960 } 2961 // fall through 2962 2963 case MEDIA_INFO_EXTERNAL_METADATA_UPDATE: 2964 msg.arg1 = MEDIA_INFO_METADATA_UPDATE; 2965 // update default track selection 2966 if (mSubtitleController != null) { 2967 mSubtitleController.selectDefaultTrack(); 2968 } 2969 break; 2970 case MEDIA_INFO_BUFFERING_START: 2971 case MEDIA_INFO_BUFFERING_END: 2972 TimeProvider timeProvider = mTimeProvider; 2973 if (timeProvider != null) { 2974 timeProvider.onBuffering(msg.arg1 == MEDIA_INFO_BUFFERING_START); 2975 } 2976 break; 2977 } 2978 2979 OnInfoListener onInfoListener = mOnInfoListener; 2980 if (onInfoListener != null) { 2981 onInfoListener.onInfo(mMediaPlayer, msg.arg1, msg.arg2); 2982 } 2983 // No real default action so far. 2984 return; 2985 case MEDIA_TIMED_TEXT: 2986 OnTimedTextListener onTimedTextListener = mOnTimedTextListener; 2987 if (onTimedTextListener == null) 2988 return; 2989 if (msg.obj == null) { 2990 onTimedTextListener.onTimedText(mMediaPlayer, null); 2991 } else { 2992 if (msg.obj instanceof Parcel) { 2993 Parcel parcel = (Parcel)msg.obj; 2994 TimedText text = new TimedText(parcel); 2995 parcel.recycle(); 2996 onTimedTextListener.onTimedText(mMediaPlayer, text); 2997 } 2998 } 2999 return; 3000 3001 case MEDIA_SUBTITLE_DATA: 3002 OnSubtitleDataListener onSubtitleDataListener = mOnSubtitleDataListener; 3003 if (onSubtitleDataListener == null) { 3004 return; 3005 } 3006 if (msg.obj instanceof Parcel) { 3007 Parcel parcel = (Parcel) msg.obj; 3008 SubtitleData data = new SubtitleData(parcel); 3009 parcel.recycle(); 3010 onSubtitleDataListener.onSubtitleData(mMediaPlayer, data); 3011 } 3012 return; 3013 3014 case MEDIA_META_DATA: 3015 OnTimedMetaDataAvailableListener onTimedMetaDataAvailableListener = 3016 mOnTimedMetaDataAvailableListener; 3017 if (onTimedMetaDataAvailableListener == null) { 3018 return; 3019 } 3020 if (msg.obj instanceof Parcel) { 3021 Parcel parcel = (Parcel) msg.obj; 3022 TimedMetaData data = TimedMetaData.createTimedMetaDataFromParcel(parcel); 3023 parcel.recycle(); 3024 onTimedMetaDataAvailableListener.onTimedMetaDataAvailable(mMediaPlayer, data); 3025 } 3026 return; 3027 3028 case MEDIA_NOP: // interface test message - ignore 3029 break; 3030 3031 default: 3032 Log.e(TAG, "Unknown message type " + msg.what); 3033 return; 3034 } 3035 } 3036 } 3037 3038 /* 3039 * Called from native code when an interesting event happens. This method 3040 * just uses the EventHandler system to post the event back to the main app thread. 3041 * We use a weak reference to the original MediaPlayer object so that the native 3042 * code is safe from the object disappearing from underneath it. (This is 3043 * the cookie passed to native_setup().) 3044 */ 3045 private static void postEventFromNative(Object mediaplayer_ref, 3046 int what, int arg1, int arg2, Object obj) 3047 { 3048 MediaPlayer mp = (MediaPlayer)((WeakReference)mediaplayer_ref).get(); 3049 if (mp == null) { 3050 return; 3051 } 3052 3053 if (what == MEDIA_INFO && arg1 == MEDIA_INFO_STARTED_AS_NEXT) { 3054 // this acquires the wakelock if needed, and sets the client side state 3055 mp.start(); 3056 } 3057 if (mp.mEventHandler != null) { 3058 Message m = mp.mEventHandler.obtainMessage(what, arg1, arg2, obj); 3059 mp.mEventHandler.sendMessage(m); 3060 } 3061 } 3062 3063 /** 3064 * Interface definition for a callback to be invoked when the media 3065 * source is ready for playback. 3066 */ 3067 public interface OnPreparedListener 3068 { 3069 /** 3070 * Called when the media file is ready for playback. 3071 * 3072 * @param mp the MediaPlayer that is ready for playback 3073 */ 3074 void onPrepared(MediaPlayer mp); 3075 } 3076 3077 /** 3078 * Register a callback to be invoked when the media source is ready 3079 * for playback. 3080 * 3081 * @param listener the callback that will be run 3082 */ 3083 public void setOnPreparedListener(OnPreparedListener listener) 3084 { 3085 mOnPreparedListener = listener; 3086 } 3087 3088 private OnPreparedListener mOnPreparedListener; 3089 3090 /** 3091 * Interface definition for a callback to be invoked when playback of 3092 * a media source has completed. 3093 */ 3094 public interface OnCompletionListener 3095 { 3096 /** 3097 * Called when the end of a media source is reached during playback. 3098 * 3099 * @param mp the MediaPlayer that reached the end of the file 3100 */ 3101 void onCompletion(MediaPlayer mp); 3102 } 3103 3104 /** 3105 * Register a callback to be invoked when the end of a media source 3106 * has been reached during playback. 3107 * 3108 * @param listener the callback that will be run 3109 */ 3110 public void setOnCompletionListener(OnCompletionListener listener) 3111 { 3112 mOnCompletionListener = listener; 3113 } 3114 3115 private OnCompletionListener mOnCompletionListener; 3116 3117 /** 3118 * Interface definition of a callback to be invoked indicating buffering 3119 * status of a media resource being streamed over the network. 3120 */ 3121 public interface OnBufferingUpdateListener 3122 { 3123 /** 3124 * Called to update status in buffering a media stream received through 3125 * progressive HTTP download. The received buffering percentage 3126 * indicates how much of the content has been buffered or played. 3127 * For example a buffering update of 80 percent when half the content 3128 * has already been played indicates that the next 30 percent of the 3129 * content to play has been buffered. 3130 * 3131 * @param mp the MediaPlayer the update pertains to 3132 * @param percent the percentage (0-100) of the content 3133 * that has been buffered or played thus far 3134 */ 3135 void onBufferingUpdate(MediaPlayer mp, int percent); 3136 } 3137 3138 /** 3139 * Register a callback to be invoked when the status of a network 3140 * stream's buffer has changed. 3141 * 3142 * @param listener the callback that will be run. 3143 */ 3144 public void setOnBufferingUpdateListener(OnBufferingUpdateListener listener) 3145 { 3146 mOnBufferingUpdateListener = listener; 3147 } 3148 3149 private OnBufferingUpdateListener mOnBufferingUpdateListener; 3150 3151 /** 3152 * Interface definition of a callback to be invoked indicating 3153 * the completion of a seek operation. 3154 */ 3155 public interface OnSeekCompleteListener 3156 { 3157 /** 3158 * Called to indicate the completion of a seek operation. 3159 * 3160 * @param mp the MediaPlayer that issued the seek operation 3161 */ 3162 public void onSeekComplete(MediaPlayer mp); 3163 } 3164 3165 /** 3166 * Register a callback to be invoked when a seek operation has been 3167 * completed. 3168 * 3169 * @param listener the callback that will be run 3170 */ 3171 public void setOnSeekCompleteListener(OnSeekCompleteListener listener) 3172 { 3173 mOnSeekCompleteListener = listener; 3174 } 3175 3176 private OnSeekCompleteListener mOnSeekCompleteListener; 3177 3178 /** 3179 * Interface definition of a callback to be invoked when the 3180 * video size is first known or updated 3181 */ 3182 public interface OnVideoSizeChangedListener 3183 { 3184 /** 3185 * Called to indicate the video size 3186 * 3187 * The video size (width and height) could be 0 if there was no video, 3188 * no display surface was set, or the value was not determined yet. 3189 * 3190 * @param mp the MediaPlayer associated with this callback 3191 * @param width the width of the video 3192 * @param height the height of the video 3193 */ 3194 public void onVideoSizeChanged(MediaPlayer mp, int width, int height); 3195 } 3196 3197 /** 3198 * Register a callback to be invoked when the video size is 3199 * known or updated. 3200 * 3201 * @param listener the callback that will be run 3202 */ 3203 public void setOnVideoSizeChangedListener(OnVideoSizeChangedListener listener) 3204 { 3205 mOnVideoSizeChangedListener = listener; 3206 } 3207 3208 private OnVideoSizeChangedListener mOnVideoSizeChangedListener; 3209 3210 /** 3211 * Interface definition of a callback to be invoked when a 3212 * timed text is available for display. 3213 */ 3214 public interface OnTimedTextListener 3215 { 3216 /** 3217 * Called to indicate an avaliable timed text 3218 * 3219 * @param mp the MediaPlayer associated with this callback 3220 * @param text the timed text sample which contains the text 3221 * needed to be displayed and the display format. 3222 */ 3223 public void onTimedText(MediaPlayer mp, TimedText text); 3224 } 3225 3226 /** 3227 * Register a callback to be invoked when a timed text is available 3228 * for display. 3229 * 3230 * @param listener the callback that will be run 3231 */ 3232 public void setOnTimedTextListener(OnTimedTextListener listener) 3233 { 3234 mOnTimedTextListener = listener; 3235 } 3236 3237 private OnTimedTextListener mOnTimedTextListener; 3238 3239 /** 3240 * Interface definition of a callback to be invoked when a 3241 * track has data available. 3242 * 3243 * @hide 3244 */ 3245 public interface OnSubtitleDataListener 3246 { 3247 public void onSubtitleData(MediaPlayer mp, SubtitleData data); 3248 } 3249 3250 /** 3251 * Register a callback to be invoked when a track has data available. 3252 * 3253 * @param listener the callback that will be run 3254 * 3255 * @hide 3256 */ 3257 public void setOnSubtitleDataListener(OnSubtitleDataListener listener) 3258 { 3259 mOnSubtitleDataListener = listener; 3260 } 3261 3262 private OnSubtitleDataListener mOnSubtitleDataListener; 3263 3264 /** 3265 * Interface definition of a callback to be invoked when a 3266 * track has timed metadata available. 3267 * 3268 * @see MediaPlayer#setOnTimedMetaDataAvailableListener(OnTimedMetaDataAvailableListener) 3269 */ 3270 public interface OnTimedMetaDataAvailableListener 3271 { 3272 /** 3273 * Called to indicate avaliable timed metadata 3274 * <p> 3275 * This method will be called as timed metadata is extracted from the media, 3276 * in the same order as it occurs in the media. The timing of this event is 3277 * not controlled by the associated timestamp. 3278 * 3279 * @param mp the MediaPlayer associated with this callback 3280 * @param data the timed metadata sample associated with this event 3281 */ 3282 public void onTimedMetaDataAvailable(MediaPlayer mp, TimedMetaData data); 3283 } 3284 3285 /** 3286 * Register a callback to be invoked when a selected track has timed metadata available. 3287 * <p> 3288 * Currently only HTTP live streaming data URI's embedded with timed ID3 tags generates 3289 * {@link TimedMetaData}. 3290 * 3291 * @see MediaPlayer#selectTrack(int) 3292 * @see MediaPlayer.OnTimedMetaDataAvailableListener 3293 * @see TimedMetaData 3294 * 3295 * @param listener the callback that will be run 3296 */ 3297 public void setOnTimedMetaDataAvailableListener(OnTimedMetaDataAvailableListener listener) 3298 { 3299 mOnTimedMetaDataAvailableListener = listener; 3300 } 3301 3302 private OnTimedMetaDataAvailableListener mOnTimedMetaDataAvailableListener; 3303 3304 /* Do not change these values without updating their counterparts 3305 * in include/media/mediaplayer.h! 3306 */ 3307 /** Unspecified media player error. 3308 * @see android.media.MediaPlayer.OnErrorListener 3309 */ 3310 public static final int MEDIA_ERROR_UNKNOWN = 1; 3311 3312 /** Media server died. In this case, the application must release the 3313 * MediaPlayer object and instantiate a new one. 3314 * @see android.media.MediaPlayer.OnErrorListener 3315 */ 3316 public static final int MEDIA_ERROR_SERVER_DIED = 100; 3317 3318 /** The video is streamed and its container is not valid for progressive 3319 * playback i.e the video's index (e.g moov atom) is not at the start of the 3320 * file. 3321 * @see android.media.MediaPlayer.OnErrorListener 3322 */ 3323 public static final int MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200; 3324 3325 /** File or network related operation errors. */ 3326 public static final int MEDIA_ERROR_IO = -1004; 3327 /** Bitstream is not conforming to the related coding standard or file spec. */ 3328 public static final int MEDIA_ERROR_MALFORMED = -1007; 3329 /** Bitstream is conforming to the related coding standard or file spec, but 3330 * the media framework does not support the feature. */ 3331 public static final int MEDIA_ERROR_UNSUPPORTED = -1010; 3332 /** Some operation takes too long to complete, usually more than 3-5 seconds. */ 3333 public static final int MEDIA_ERROR_TIMED_OUT = -110; 3334 3335 /** Unspecified low-level system error. This value originated from UNKNOWN_ERROR in 3336 * system/core/include/utils/Errors.h 3337 * @see android.media.MediaPlayer.OnErrorListener 3338 * @hide 3339 */ 3340 public static final int MEDIA_ERROR_SYSTEM = -2147483648; 3341 3342 /** 3343 * Interface definition of a callback to be invoked when there 3344 * has been an error during an asynchronous operation (other errors 3345 * will throw exceptions at method call time). 3346 */ 3347 public interface OnErrorListener 3348 { 3349 /** 3350 * Called to indicate an error. 3351 * 3352 * @param mp the MediaPlayer the error pertains to 3353 * @param what the type of error that has occurred: 3354 * <ul> 3355 * <li>{@link #MEDIA_ERROR_UNKNOWN} 3356 * <li>{@link #MEDIA_ERROR_SERVER_DIED} 3357 * </ul> 3358 * @param extra an extra code, specific to the error. Typically 3359 * implementation dependent. 3360 * <ul> 3361 * <li>{@link #MEDIA_ERROR_IO} 3362 * <li>{@link #MEDIA_ERROR_MALFORMED} 3363 * <li>{@link #MEDIA_ERROR_UNSUPPORTED} 3364 * <li>{@link #MEDIA_ERROR_TIMED_OUT} 3365 * <li><code>MEDIA_ERROR_SYSTEM (-2147483648)</code> - low-level system error. 3366 * </ul> 3367 * @return True if the method handled the error, false if it didn't. 3368 * Returning false, or not having an OnErrorListener at all, will 3369 * cause the OnCompletionListener to be called. 3370 */ 3371 boolean onError(MediaPlayer mp, int what, int extra); 3372 } 3373 3374 /** 3375 * Register a callback to be invoked when an error has happened 3376 * during an asynchronous operation. 3377 * 3378 * @param listener the callback that will be run 3379 */ 3380 public void setOnErrorListener(OnErrorListener listener) 3381 { 3382 mOnErrorListener = listener; 3383 } 3384 3385 private OnErrorListener mOnErrorListener; 3386 3387 3388 /* Do not change these values without updating their counterparts 3389 * in include/media/mediaplayer.h! 3390 */ 3391 /** Unspecified media player info. 3392 * @see android.media.MediaPlayer.OnInfoListener 3393 */ 3394 public static final int MEDIA_INFO_UNKNOWN = 1; 3395 3396 /** The player was started because it was used as the next player for another 3397 * player, which just completed playback. 3398 * @see android.media.MediaPlayer.OnInfoListener 3399 * @hide 3400 */ 3401 public static final int MEDIA_INFO_STARTED_AS_NEXT = 2; 3402 3403 /** The player just pushed the very first video frame for rendering. 3404 * @see android.media.MediaPlayer.OnInfoListener 3405 */ 3406 public static final int MEDIA_INFO_VIDEO_RENDERING_START = 3; 3407 3408 /** The video is too complex for the decoder: it can't decode frames fast 3409 * enough. Possibly only the audio plays fine at this stage. 3410 * @see android.media.MediaPlayer.OnInfoListener 3411 */ 3412 public static final int MEDIA_INFO_VIDEO_TRACK_LAGGING = 700; 3413 3414 /** MediaPlayer is temporarily pausing playback internally in order to 3415 * buffer more data. 3416 * @see android.media.MediaPlayer.OnInfoListener 3417 */ 3418 public static final int MEDIA_INFO_BUFFERING_START = 701; 3419 3420 /** MediaPlayer is resuming playback after filling buffers. 3421 * @see android.media.MediaPlayer.OnInfoListener 3422 */ 3423 public static final int MEDIA_INFO_BUFFERING_END = 702; 3424 3425 /** Estimated network bandwidth information (kbps) is available; currently this event fires 3426 * simultaneously as {@link #MEDIA_INFO_BUFFERING_START} and {@link #MEDIA_INFO_BUFFERING_END} 3427 * when playing network files. 3428 * @see android.media.MediaPlayer.OnInfoListener 3429 * @hide 3430 */ 3431 public static final int MEDIA_INFO_NETWORK_BANDWIDTH = 703; 3432 3433 /** Bad interleaving means that a media has been improperly interleaved or 3434 * not interleaved at all, e.g has all the video samples first then all the 3435 * audio ones. Video is playing but a lot of disk seeks may be happening. 3436 * @see android.media.MediaPlayer.OnInfoListener 3437 */ 3438 public static final int MEDIA_INFO_BAD_INTERLEAVING = 800; 3439 3440 /** The media cannot be seeked (e.g live stream) 3441 * @see android.media.MediaPlayer.OnInfoListener 3442 */ 3443 public static final int MEDIA_INFO_NOT_SEEKABLE = 801; 3444 3445 /** A new set of metadata is available. 3446 * @see android.media.MediaPlayer.OnInfoListener 3447 */ 3448 public static final int MEDIA_INFO_METADATA_UPDATE = 802; 3449 3450 /** A new set of external-only metadata is available. Used by 3451 * JAVA framework to avoid triggering track scanning. 3452 * @hide 3453 */ 3454 public static final int MEDIA_INFO_EXTERNAL_METADATA_UPDATE = 803; 3455 3456 /** Failed to handle timed text track properly. 3457 * @see android.media.MediaPlayer.OnInfoListener 3458 * 3459 * {@hide} 3460 */ 3461 public static final int MEDIA_INFO_TIMED_TEXT_ERROR = 900; 3462 3463 /** Subtitle track was not supported by the media framework. 3464 * @see android.media.MediaPlayer.OnInfoListener 3465 */ 3466 public static final int MEDIA_INFO_UNSUPPORTED_SUBTITLE = 901; 3467 3468 /** Reading the subtitle track takes too long. 3469 * @see android.media.MediaPlayer.OnInfoListener 3470 */ 3471 public static final int MEDIA_INFO_SUBTITLE_TIMED_OUT = 902; 3472 3473 /** 3474 * Interface definition of a callback to be invoked to communicate some 3475 * info and/or warning about the media or its playback. 3476 */ 3477 public interface OnInfoListener 3478 { 3479 /** 3480 * Called to indicate an info or a warning. 3481 * 3482 * @param mp the MediaPlayer the info pertains to. 3483 * @param what the type of info or warning. 3484 * <ul> 3485 * <li>{@link #MEDIA_INFO_UNKNOWN} 3486 * <li>{@link #MEDIA_INFO_VIDEO_TRACK_LAGGING} 3487 * <li>{@link #MEDIA_INFO_VIDEO_RENDERING_START} 3488 * <li>{@link #MEDIA_INFO_BUFFERING_START} 3489 * <li>{@link #MEDIA_INFO_BUFFERING_END} 3490 * <li><code>MEDIA_INFO_NETWORK_BANDWIDTH (703)</code> - 3491 * bandwidth information is available (as <code>extra</code> kbps) 3492 * <li>{@link #MEDIA_INFO_BAD_INTERLEAVING} 3493 * <li>{@link #MEDIA_INFO_NOT_SEEKABLE} 3494 * <li>{@link #MEDIA_INFO_METADATA_UPDATE} 3495 * <li>{@link #MEDIA_INFO_UNSUPPORTED_SUBTITLE} 3496 * <li>{@link #MEDIA_INFO_SUBTITLE_TIMED_OUT} 3497 * </ul> 3498 * @param extra an extra code, specific to the info. Typically 3499 * implementation dependent. 3500 * @return True if the method handled the info, false if it didn't. 3501 * Returning false, or not having an OnInfoListener at all, will 3502 * cause the info to be discarded. 3503 */ 3504 boolean onInfo(MediaPlayer mp, int what, int extra); 3505 } 3506 3507 /** 3508 * Register a callback to be invoked when an info/warning is available. 3509 * 3510 * @param listener the callback that will be run 3511 */ 3512 public void setOnInfoListener(OnInfoListener listener) 3513 { 3514 mOnInfoListener = listener; 3515 } 3516 3517 private OnInfoListener mOnInfoListener; 3518 3519 /* 3520 * Test whether a given video scaling mode is supported. 3521 */ 3522 private boolean isVideoScalingModeSupported(int mode) { 3523 return (mode == VIDEO_SCALING_MODE_SCALE_TO_FIT || 3524 mode == VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING); 3525 } 3526 3527 /** @hide */ 3528 static class TimeProvider implements MediaPlayer.OnSeekCompleteListener, 3529 MediaTimeProvider { 3530 private static final String TAG = "MTP"; 3531 private static final long MAX_NS_WITHOUT_POSITION_CHECK = 5000000000L; 3532 private static final long MAX_EARLY_CALLBACK_US = 1000; 3533 private static final long TIME_ADJUSTMENT_RATE = 2; /* meaning 1/2 */ 3534 private long mLastTimeUs = 0; 3535 private MediaPlayer mPlayer; 3536 private boolean mPaused = true; 3537 private boolean mStopped = true; 3538 private boolean mBuffering; 3539 private long mLastReportedTime; 3540 private long mTimeAdjustment; 3541 // since we are expecting only a handful listeners per stream, there is 3542 // no need for log(N) search performance 3543 private MediaTimeProvider.OnMediaTimeListener mListeners[]; 3544 private long mTimes[]; 3545 private long mLastNanoTime; 3546 private Handler mEventHandler; 3547 private boolean mRefresh = false; 3548 private boolean mPausing = false; 3549 private boolean mSeeking = false; 3550 private static final int NOTIFY = 1; 3551 private static final int NOTIFY_TIME = 0; 3552 private static final int REFRESH_AND_NOTIFY_TIME = 1; 3553 private static final int NOTIFY_STOP = 2; 3554 private static final int NOTIFY_SEEK = 3; 3555 private static final int NOTIFY_TRACK_DATA = 4; 3556 private HandlerThread mHandlerThread; 3557 3558 /** @hide */ 3559 public boolean DEBUG = false; 3560 3561 public TimeProvider(MediaPlayer mp) { 3562 mPlayer = mp; 3563 try { 3564 getCurrentTimeUs(true, false); 3565 } catch (IllegalStateException e) { 3566 // we assume starting position 3567 mRefresh = true; 3568 } 3569 3570 Looper looper; 3571 if ((looper = Looper.myLooper()) == null && 3572 (looper = Looper.getMainLooper()) == null) { 3573 // Create our own looper here in case MP was created without one 3574 mHandlerThread = new HandlerThread("MediaPlayerMTPEventThread", 3575 Process.THREAD_PRIORITY_FOREGROUND); 3576 mHandlerThread.start(); 3577 looper = mHandlerThread.getLooper(); 3578 } 3579 mEventHandler = new EventHandler(looper); 3580 3581 mListeners = new MediaTimeProvider.OnMediaTimeListener[0]; 3582 mTimes = new long[0]; 3583 mLastTimeUs = 0; 3584 mTimeAdjustment = 0; 3585 } 3586 3587 private void scheduleNotification(int type, long delayUs) { 3588 // ignore time notifications until seek is handled 3589 if (mSeeking && 3590 (type == NOTIFY_TIME || type == REFRESH_AND_NOTIFY_TIME)) { 3591 return; 3592 } 3593 3594 if (DEBUG) Log.v(TAG, "scheduleNotification " + type + " in " + delayUs); 3595 mEventHandler.removeMessages(NOTIFY); 3596 Message msg = mEventHandler.obtainMessage(NOTIFY, type, 0); 3597 mEventHandler.sendMessageDelayed(msg, (int) (delayUs / 1000)); 3598 } 3599 3600 /** @hide */ 3601 public void close() { 3602 mEventHandler.removeMessages(NOTIFY); 3603 if (mHandlerThread != null) { 3604 mHandlerThread.quitSafely(); 3605 mHandlerThread = null; 3606 } 3607 } 3608 3609 /** @hide */ 3610 protected void finalize() { 3611 if (mHandlerThread != null) { 3612 mHandlerThread.quitSafely(); 3613 } 3614 } 3615 3616 /** @hide */ 3617 public void onPaused(boolean paused) { 3618 synchronized(this) { 3619 if (DEBUG) Log.d(TAG, "onPaused: " + paused); 3620 if (mStopped) { // handle as seek if we were stopped 3621 mStopped = false; 3622 mSeeking = true; 3623 scheduleNotification(NOTIFY_SEEK, 0 /* delay */); 3624 } else { 3625 mPausing = paused; // special handling if player disappeared 3626 mSeeking = false; 3627 scheduleNotification(REFRESH_AND_NOTIFY_TIME, 0 /* delay */); 3628 } 3629 } 3630 } 3631 3632 /** @hide */ 3633 public void onBuffering(boolean buffering) { 3634 synchronized (this) { 3635 if (DEBUG) Log.d(TAG, "onBuffering: " + buffering); 3636 mBuffering = buffering; 3637 scheduleNotification(REFRESH_AND_NOTIFY_TIME, 0 /* delay */); 3638 } 3639 } 3640 3641 /** @hide */ 3642 public void onStopped() { 3643 synchronized(this) { 3644 if (DEBUG) Log.d(TAG, "onStopped"); 3645 mPaused = true; 3646 mStopped = true; 3647 mSeeking = false; 3648 mBuffering = false; 3649 scheduleNotification(NOTIFY_STOP, 0 /* delay */); 3650 } 3651 } 3652 3653 /** @hide */ 3654 @Override 3655 public void onSeekComplete(MediaPlayer mp) { 3656 synchronized(this) { 3657 mStopped = false; 3658 mSeeking = true; 3659 scheduleNotification(NOTIFY_SEEK, 0 /* delay */); 3660 } 3661 } 3662 3663 /** @hide */ 3664 public void onNewPlayer() { 3665 if (mRefresh) { 3666 synchronized(this) { 3667 mStopped = false; 3668 mSeeking = true; 3669 mBuffering = false; 3670 scheduleNotification(NOTIFY_SEEK, 0 /* delay */); 3671 } 3672 } 3673 } 3674 3675 private synchronized void notifySeek() { 3676 mSeeking = false; 3677 try { 3678 long timeUs = getCurrentTimeUs(true, false); 3679 if (DEBUG) Log.d(TAG, "onSeekComplete at " + timeUs); 3680 3681 for (MediaTimeProvider.OnMediaTimeListener listener: mListeners) { 3682 if (listener == null) { 3683 break; 3684 } 3685 listener.onSeek(timeUs); 3686 } 3687 } catch (IllegalStateException e) { 3688 // we should not be there, but at least signal pause 3689 if (DEBUG) Log.d(TAG, "onSeekComplete but no player"); 3690 mPausing = true; // special handling if player disappeared 3691 notifyTimedEvent(false /* refreshTime */); 3692 } 3693 } 3694 3695 private synchronized void notifyTrackData(Pair<SubtitleTrack, byte[]> trackData) { 3696 SubtitleTrack track = trackData.first; 3697 byte[] data = trackData.second; 3698 track.onData(data, true /* eos */, ~0 /* runID: keep forever */); 3699 } 3700 3701 private synchronized void notifyStop() { 3702 for (MediaTimeProvider.OnMediaTimeListener listener: mListeners) { 3703 if (listener == null) { 3704 break; 3705 } 3706 listener.onStop(); 3707 } 3708 } 3709 3710 private int registerListener(MediaTimeProvider.OnMediaTimeListener listener) { 3711 int i = 0; 3712 for (; i < mListeners.length; i++) { 3713 if (mListeners[i] == listener || mListeners[i] == null) { 3714 break; 3715 } 3716 } 3717 3718 // new listener 3719 if (i >= mListeners.length) { 3720 MediaTimeProvider.OnMediaTimeListener[] newListeners = 3721 new MediaTimeProvider.OnMediaTimeListener[i + 1]; 3722 long[] newTimes = new long[i + 1]; 3723 System.arraycopy(mListeners, 0, newListeners, 0, mListeners.length); 3724 System.arraycopy(mTimes, 0, newTimes, 0, mTimes.length); 3725 mListeners = newListeners; 3726 mTimes = newTimes; 3727 } 3728 3729 if (mListeners[i] == null) { 3730 mListeners[i] = listener; 3731 mTimes[i] = MediaTimeProvider.NO_TIME; 3732 } 3733 return i; 3734 } 3735 3736 public void notifyAt( 3737 long timeUs, MediaTimeProvider.OnMediaTimeListener listener) { 3738 synchronized(this) { 3739 if (DEBUG) Log.d(TAG, "notifyAt " + timeUs); 3740 mTimes[registerListener(listener)] = timeUs; 3741 scheduleNotification(NOTIFY_TIME, 0 /* delay */); 3742 } 3743 } 3744 3745 public void scheduleUpdate(MediaTimeProvider.OnMediaTimeListener listener) { 3746 synchronized(this) { 3747 if (DEBUG) Log.d(TAG, "scheduleUpdate"); 3748 int i = registerListener(listener); 3749 3750 if (!mStopped) { 3751 mTimes[i] = 0; 3752 scheduleNotification(NOTIFY_TIME, 0 /* delay */); 3753 } 3754 } 3755 } 3756 3757 public void cancelNotifications( 3758 MediaTimeProvider.OnMediaTimeListener listener) { 3759 synchronized(this) { 3760 int i = 0; 3761 for (; i < mListeners.length; i++) { 3762 if (mListeners[i] == listener) { 3763 System.arraycopy(mListeners, i + 1, 3764 mListeners, i, mListeners.length - i - 1); 3765 System.arraycopy(mTimes, i + 1, 3766 mTimes, i, mTimes.length - i - 1); 3767 mListeners[mListeners.length - 1] = null; 3768 mTimes[mTimes.length - 1] = NO_TIME; 3769 break; 3770 } else if (mListeners[i] == null) { 3771 break; 3772 } 3773 } 3774 3775 scheduleNotification(NOTIFY_TIME, 0 /* delay */); 3776 } 3777 } 3778 3779 private synchronized void notifyTimedEvent(boolean refreshTime) { 3780 // figure out next callback 3781 long nowUs; 3782 try { 3783 nowUs = getCurrentTimeUs(refreshTime, true); 3784 } catch (IllegalStateException e) { 3785 // assume we paused until new player arrives 3786 mRefresh = true; 3787 mPausing = true; // this ensures that call succeeds 3788 nowUs = getCurrentTimeUs(refreshTime, true); 3789 } 3790 long nextTimeUs = nowUs; 3791 3792 if (mSeeking) { 3793 // skip timed-event notifications until seek is complete 3794 return; 3795 } 3796 3797 if (DEBUG) { 3798 StringBuilder sb = new StringBuilder(); 3799 sb.append("notifyTimedEvent(").append(mLastTimeUs).append(" -> ") 3800 .append(nowUs).append(") from {"); 3801 boolean first = true; 3802 for (long time: mTimes) { 3803 if (time == NO_TIME) { 3804 continue; 3805 } 3806 if (!first) sb.append(", "); 3807 sb.append(time); 3808 first = false; 3809 } 3810 sb.append("}"); 3811 Log.d(TAG, sb.toString()); 3812 } 3813 3814 Vector<MediaTimeProvider.OnMediaTimeListener> activatedListeners = 3815 new Vector<MediaTimeProvider.OnMediaTimeListener>(); 3816 for (int ix = 0; ix < mTimes.length; ix++) { 3817 if (mListeners[ix] == null) { 3818 break; 3819 } 3820 if (mTimes[ix] <= NO_TIME) { 3821 // ignore, unless we were stopped 3822 } else if (mTimes[ix] <= nowUs + MAX_EARLY_CALLBACK_US) { 3823 activatedListeners.add(mListeners[ix]); 3824 if (DEBUG) Log.d(TAG, "removed"); 3825 mTimes[ix] = NO_TIME; 3826 } else if (nextTimeUs == nowUs || mTimes[ix] < nextTimeUs) { 3827 nextTimeUs = mTimes[ix]; 3828 } 3829 } 3830 3831 if (nextTimeUs > nowUs && !mPaused) { 3832 // schedule callback at nextTimeUs 3833 if (DEBUG) Log.d(TAG, "scheduling for " + nextTimeUs + " and " + nowUs); 3834 scheduleNotification(NOTIFY_TIME, nextTimeUs - nowUs); 3835 } else { 3836 mEventHandler.removeMessages(NOTIFY); 3837 // no more callbacks 3838 } 3839 3840 for (MediaTimeProvider.OnMediaTimeListener listener: activatedListeners) { 3841 listener.onTimedEvent(nowUs); 3842 } 3843 } 3844 3845 private long getEstimatedTime(long nanoTime, boolean monotonic) { 3846 if (mPaused) { 3847 mLastReportedTime = mLastTimeUs + mTimeAdjustment; 3848 } else { 3849 long timeSinceRead = (nanoTime - mLastNanoTime) / 1000; 3850 mLastReportedTime = mLastTimeUs + timeSinceRead; 3851 if (mTimeAdjustment > 0) { 3852 long adjustment = 3853 mTimeAdjustment - timeSinceRead / TIME_ADJUSTMENT_RATE; 3854 if (adjustment <= 0) { 3855 mTimeAdjustment = 0; 3856 } else { 3857 mLastReportedTime += adjustment; 3858 } 3859 } 3860 } 3861 return mLastReportedTime; 3862 } 3863 3864 public long getCurrentTimeUs(boolean refreshTime, boolean monotonic) 3865 throws IllegalStateException { 3866 synchronized (this) { 3867 // we always refresh the time when the paused-state changes, because 3868 // we expect to have received the pause-change event delayed. 3869 if (mPaused && !refreshTime) { 3870 return mLastReportedTime; 3871 } 3872 3873 long nanoTime = System.nanoTime(); 3874 if (refreshTime || 3875 nanoTime >= mLastNanoTime + MAX_NS_WITHOUT_POSITION_CHECK) { 3876 try { 3877 mLastTimeUs = mPlayer.getCurrentPosition() * 1000L; 3878 mPaused = !mPlayer.isPlaying() || mBuffering; 3879 if (DEBUG) Log.v(TAG, (mPaused ? "paused" : "playing") + " at " + mLastTimeUs); 3880 } catch (IllegalStateException e) { 3881 if (mPausing) { 3882 // if we were pausing, get last estimated timestamp 3883 mPausing = false; 3884 getEstimatedTime(nanoTime, monotonic); 3885 mPaused = true; 3886 if (DEBUG) Log.d(TAG, "illegal state, but pausing: estimating at " + mLastReportedTime); 3887 return mLastReportedTime; 3888 } 3889 // TODO get time when prepared 3890 throw e; 3891 } 3892 mLastNanoTime = nanoTime; 3893 if (monotonic && mLastTimeUs < mLastReportedTime) { 3894 /* have to adjust time */ 3895 mTimeAdjustment = mLastReportedTime - mLastTimeUs; 3896 if (mTimeAdjustment > 1000000) { 3897 // schedule seeked event if time jumped significantly 3898 // TODO: do this properly by introducing an exception 3899 mStopped = false; 3900 mSeeking = true; 3901 scheduleNotification(NOTIFY_SEEK, 0 /* delay */); 3902 } 3903 } else { 3904 mTimeAdjustment = 0; 3905 } 3906 } 3907 3908 return getEstimatedTime(nanoTime, monotonic); 3909 } 3910 } 3911 3912 private class EventHandler extends Handler { 3913 public EventHandler(Looper looper) { 3914 super(looper); 3915 } 3916 3917 @Override 3918 public void handleMessage(Message msg) { 3919 if (msg.what == NOTIFY) { 3920 switch (msg.arg1) { 3921 case NOTIFY_TIME: 3922 notifyTimedEvent(false /* refreshTime */); 3923 break; 3924 case REFRESH_AND_NOTIFY_TIME: 3925 notifyTimedEvent(true /* refreshTime */); 3926 break; 3927 case NOTIFY_STOP: 3928 notifyStop(); 3929 break; 3930 case NOTIFY_SEEK: 3931 notifySeek(); 3932 break; 3933 case NOTIFY_TRACK_DATA: 3934 notifyTrackData((Pair<SubtitleTrack, byte[]>)msg.obj); 3935 break; 3936 } 3937 } 3938 } 3939 } 3940 } 3941} 3942