2 * Copyright (C) 2006 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package android.media;
19 import android.annotation.IntDef;
20 import android.annotation.NonNull;
21 import android.annotation.Nullable;
22 import android.app.ActivityThread;
23 import android.content.ContentResolver;
24 import android.content.Context;
25 import android.content.res.AssetFileDescriptor;
26 import android.net.Uri;
27 import android.os.Handler;
28 import android.os.HandlerThread;
29 import android.os.IBinder;
30 import android.os.Looper;
31 import android.os.Message;
32 import android.os.Parcel;
33 import android.os.Parcelable;
34 import android.os.Process;
35 import android.os.PowerManager;
36 import android.os.SystemProperties;
37 import android.provider.Settings;
38 import android.system.ErrnoException;
39 import android.system.OsConstants;
40 import android.util.Log;
41 import android.util.Pair;
42 import android.view.Surface;
43 import android.view.SurfaceHolder;
44 import android.widget.VideoView;
45 import android.graphics.SurfaceTexture;
46 import android.media.AudioManager;
47 import android.media.MediaFormat;
48 import android.media.MediaTimeProvider;
49 import android.media.PlaybackParams;
50 import android.media.SubtitleController;
51 import android.media.SubtitleController.Anchor;
52 import android.media.SubtitleData;
53 import android.media.SubtitleTrack.RenderingWidget;
54 import android.media.SyncParams;
56 import com.android.internal.util.Preconditions;
58 import libcore.io.IoBridge;
59 import libcore.io.Libcore;
61 import java.io.ByteArrayOutputStream;
63 import java.io.FileDescriptor;
64 import java.io.FileInputStream;
65 import java.io.IOException;
66 import java.io.InputStream;
67 import java.lang.Runnable;
68 import java.lang.annotation.Retention;
69 import java.lang.annotation.RetentionPolicy;
70 import java.net.InetSocketAddress;
71 import java.util.BitSet;
73 import java.util.Scanner;
75 import java.util.Vector;
76 import java.lang.ref.WeakReference;
79 * MediaPlayer class can be used to control playback
80 * of audio/video files and streams. An example on how to use the methods in
81 * this class can be found in {@link android.widget.VideoView}.
83 * <p>Topics covered here are:
85 * <li><a href="#StateDiagram">State Diagram</a>
86 * <li><a href="#Valid_and_Invalid_States">Valid and Invalid States</a>
87 * <li><a href="#Permissions">Permissions</a>
88 * <li><a href="#Callbacks">Register informational and error callbacks</a>
91 * <div class="special reference">
92 * <h3>Developer Guides</h3>
93 * <p>For more information about how to use MediaPlayer, read the
94 * <a href="{@docRoot}guide/topics/media/mediaplayer.html">Media Playback</a> developer guide.</p>
97 * <a name="StateDiagram"></a>
98 * <h3>State Diagram</h3>
100 * <p>Playback control of audio/video files and streams is managed as a state
101 * machine. The following diagram shows the life cycle and the states of a
102 * MediaPlayer object driven by the supported playback control operations.
103 * The ovals represent the states a MediaPlayer object may reside
104 * in. The arcs represent the playback control operations that drive the object
105 * state transition. There are two types of arcs. The arcs with a single arrow
106 * head represent synchronous method calls, while those with
107 * a double arrow head represent asynchronous method calls.</p>
109 * <p><img src="../../../images/mediaplayer_state_diagram.gif"
110 * alt="MediaPlayer State diagram"
113 * <p>From this state diagram, one can see that a MediaPlayer object has the
114 * following states:</p>
116 * <li>When a MediaPlayer object is just created using <code>new</code> or
117 * after {@link #reset()} is called, it is in the <em>Idle</em> state; and after
118 * {@link #release()} is called, it is in the <em>End</em> state. Between these
119 * two states is the life cycle of the MediaPlayer object.
121 * <li>There is a subtle but important difference between a newly constructed
122 * MediaPlayer object and the MediaPlayer object after {@link #reset()}
123 * is called. It is a programming error to invoke methods such
124 * as {@link #getCurrentPosition()},
125 * {@link #getDuration()}, {@link #getVideoHeight()},
126 * {@link #getVideoWidth()}, {@link #setAudioStreamType(int)},
127 * {@link #setLooping(boolean)},
128 * {@link #setVolume(float, float)}, {@link #pause()}, {@link #start()},
129 * {@link #stop()}, {@link #seekTo(int)}, {@link #prepare()} or
130 * {@link #prepareAsync()} in the <em>Idle</em> state for both cases. If any of these
131 * methods is called right after a MediaPlayer object is constructed,
132 * the user supplied callback method OnErrorListener.onError() won't be
133 * called by the internal player engine and the object state remains
134 * unchanged; but if these methods are called right after {@link #reset()},
135 * the user supplied callback method OnErrorListener.onError() will be
136 * invoked by the internal player engine and the object will be
137 * transfered to the <em>Error</em> state. </li>
138 * <li>It is also recommended that once
139 * a MediaPlayer object is no longer being used, call {@link #release()} immediately
140 * so that resources used by the internal player engine associated with the
141 * MediaPlayer object can be released immediately. Resource may include
142 * singleton resources such as hardware acceleration components and
143 * failure to call {@link #release()} may cause subsequent instances of
144 * MediaPlayer objects to fallback to software implementations or fail
145 * altogether. Once the MediaPlayer
146 * object is in the <em>End</em> state, it can no longer be used and
147 * there is no way to bring it back to any other state. </li>
149 * the MediaPlayer objects created using <code>new</code> is in the
150 * <em>Idle</em> state, while those created with one
151 * of the overloaded convenient <code>create</code> methods are <em>NOT</em>
152 * in the <em>Idle</em> state. In fact, the objects are in the <em>Prepared</em>
153 * state if the creation using <code>create</code> method is successful.
157 * <li>In general, some playback control operation may fail due to various
158 * reasons, such as unsupported audio/video format, poorly interleaved
159 * audio/video, resolution too high, streaming timeout, and the like.
160 * Thus, error reporting and recovery is an important concern under
161 * these circumstances. Sometimes, due to programming errors, invoking a playback
162 * control operation in an invalid state may also occur. Under all these
163 * error conditions, the internal player engine invokes a user supplied
164 * OnErrorListener.onError() method if an OnErrorListener has been
165 * registered beforehand via
166 * {@link #setOnErrorListener(android.media.MediaPlayer.OnErrorListener)}.
168 * <li>It is important to note that once an error occurs, the
169 * MediaPlayer object enters the <em>Error</em> state (except as noted
170 * above), even if an error listener has not been registered by the application.</li>
171 * <li>In order to reuse a MediaPlayer object that is in the <em>
172 * Error</em> state and recover from the error,
173 * {@link #reset()} can be called to restore the object to its <em>Idle</em>
175 * <li>It is good programming practice to have your application
176 * register a OnErrorListener to look out for error notifications from
177 * the internal player engine.</li>
178 * <li>IllegalStateException is
179 * thrown to prevent programming errors such as calling {@link #prepare()},
180 * {@link #prepareAsync()}, or one of the overloaded <code>setDataSource
181 * </code> methods in an invalid state. </li>
185 * {@link #setDataSource(FileDescriptor)}, or
186 * {@link #setDataSource(String)}, or
187 * {@link #setDataSource(Context, Uri)}, or
188 * {@link #setDataSource(FileDescriptor, long, long)}, or
189 * {@link #setDataSource(MediaDataSource)} transfers a
190 * MediaPlayer object in the <em>Idle</em> state to the
191 * <em>Initialized</em> state.
193 * <li>An IllegalStateException is thrown if
194 * setDataSource() is called in any other state.</li>
195 * <li>It is good programming
196 * practice to always look out for <code>IllegalArgumentException</code>
197 * and <code>IOException</code> that may be thrown from the overloaded
198 * <code>setDataSource</code> methods.</li>
201 * <li>A MediaPlayer object must first enter the <em>Prepared</em> state
202 * before playback can be started.
204 * <li>There are two ways (synchronous vs.
205 * asynchronous) that the <em>Prepared</em> state can be reached:
206 * either a call to {@link #prepare()} (synchronous) which
207 * transfers the object to the <em>Prepared</em> state once the method call
208 * returns, or a call to {@link #prepareAsync()} (asynchronous) which
209 * first transfers the object to the <em>Preparing</em> state after the
210 * call returns (which occurs almost right way) while the internal
211 * player engine continues working on the rest of preparation work
212 * until the preparation work completes. When the preparation completes or when {@link #prepare()} call returns,
213 * the internal player engine then calls a user supplied callback method,
214 * onPrepared() of the OnPreparedListener interface, if an
215 * OnPreparedListener is registered beforehand via {@link
216 * #setOnPreparedListener(android.media.MediaPlayer.OnPreparedListener)}.</li>
217 * <li>It is important to note that
218 * the <em>Preparing</em> state is a transient state, and the behavior
219 * of calling any method with side effect while a MediaPlayer object is
220 * in the <em>Preparing</em> state is undefined.</li>
221 * <li>An IllegalStateException is
222 * thrown if {@link #prepare()} or {@link #prepareAsync()} is called in
223 * any other state.</li>
224 * <li>While in the <em>Prepared</em> state, properties
225 * such as audio/sound volume, screenOnWhilePlaying, looping can be
226 * adjusted by invoking the corresponding set methods.</li>
229 * <li>To start the playback, {@link #start()} must be called. After
230 * {@link #start()} returns successfully, the MediaPlayer object is in the
231 * <em>Started</em> state. {@link #isPlaying()} can be called to test
232 * whether the MediaPlayer object is in the <em>Started</em> state.
234 * <li>While in the <em>Started</em> state, the internal player engine calls
235 * a user supplied OnBufferingUpdateListener.onBufferingUpdate() callback
236 * method if a OnBufferingUpdateListener has been registered beforehand
237 * via {@link #setOnBufferingUpdateListener(OnBufferingUpdateListener)}.
238 * This callback allows applications to keep track of the buffering status
239 * while streaming audio/video.</li>
240 * <li>Calling {@link #start()} has not effect
241 * on a MediaPlayer object that is already in the <em>Started</em> state.</li>
244 * <li>Playback can be paused and stopped, and the current playback position
245 * can be adjusted. Playback can be paused via {@link #pause()}. When the call to
246 * {@link #pause()} returns, the MediaPlayer object enters the
247 * <em>Paused</em> state. Note that the transition from the <em>Started</em>
248 * state to the <em>Paused</em> state and vice versa happens
249 * asynchronously in the player engine. It may take some time before
250 * the state is updated in calls to {@link #isPlaying()}, and it can be
251 * a number of seconds in the case of streamed content.
253 * <li>Calling {@link #start()} to resume playback for a paused
254 * MediaPlayer object, and the resumed playback
255 * position is the same as where it was paused. When the call to
256 * {@link #start()} returns, the paused MediaPlayer object goes back to
257 * the <em>Started</em> state.</li>
258 * <li>Calling {@link #pause()} has no effect on
259 * a MediaPlayer object that is already in the <em>Paused</em> state.</li>
262 * <li>Calling {@link #stop()} stops playback and causes a
263 * MediaPlayer in the <em>Started</em>, <em>Paused</em>, <em>Prepared
264 * </em> or <em>PlaybackCompleted</em> state to enter the
265 * <em>Stopped</em> state.
267 * <li>Once in the <em>Stopped</em> state, playback cannot be started
268 * until {@link #prepare()} or {@link #prepareAsync()} are called to set
269 * the MediaPlayer object to the <em>Prepared</em> state again.</li>
270 * <li>Calling {@link #stop()} has no effect on a MediaPlayer
271 * object that is already in the <em>Stopped</em> state.</li>
274 * <li>The playback position can be adjusted with a call to
275 * {@link #seekTo(int)}.
277 * <li>Although the asynchronuous {@link #seekTo(int)}
278 * call returns right way, the actual seek operation may take a while to
279 * finish, especially for audio/video being streamed. When the actual
280 * seek operation completes, the internal player engine calls a user
281 * supplied OnSeekComplete.onSeekComplete() if an OnSeekCompleteListener
282 * has been registered beforehand via
283 * {@link #setOnSeekCompleteListener(OnSeekCompleteListener)}.</li>
285 * note that {@link #seekTo(int)} can also be called in the other states,
286 * such as <em>Prepared</em>, <em>Paused</em> and <em>PlaybackCompleted
288 * <li>Furthermore, the actual current playback position
289 * can be retrieved with a call to {@link #getCurrentPosition()}, which
290 * is helpful for applications such as a Music player that need to keep
291 * track of the playback progress.</li>
294 * <li>When the playback reaches the end of stream, the playback completes.
296 * <li>If the looping mode was being set to <var>true</var>with
297 * {@link #setLooping(boolean)}, the MediaPlayer object shall remain in
298 * the <em>Started</em> state.</li>
299 * <li>If the looping mode was set to <var>false
300 * </var>, the player engine calls a user supplied callback method,
301 * OnCompletion.onCompletion(), if a OnCompletionListener is registered
302 * beforehand via {@link #setOnCompletionListener(OnCompletionListener)}.
303 * The invoke of the callback signals that the object is now in the <em>
304 * PlaybackCompleted</em> state.</li>
305 * <li>While in the <em>PlaybackCompleted</em>
306 * state, calling {@link #start()} can restart the playback from the
307 * beginning of the audio/video source.</li>
311 * <a name="Valid_and_Invalid_States"></a>
312 * <h3>Valid and invalid states</h3>
314 * <table border="0" cellspacing="0" cellpadding="0">
315 * <tr><td>Method Name </p></td>
316 * <td>Valid Sates </p></td>
317 * <td>Invalid States </p></td>
318 * <td>Comments </p></td></tr>
319 * <tr><td>attachAuxEffect </p></td>
320 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
321 * <td>{Idle, Error} </p></td>
322 * <td>This method must be called after setDataSource.
323 * Calling it does not change the object state. </p></td></tr>
324 * <tr><td>getAudioSessionId </p></td>
327 * <td>This method can be called in any state and calling it does not change
328 * the object state. </p></td></tr>
329 * <tr><td>getCurrentPosition </p></td>
330 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
331 * PlaybackCompleted} </p></td>
332 * <td>{Error}</p></td>
333 * <td>Successful invoke of this method in a valid state does not change the
334 * state. Calling this method in an invalid state transfers the object
335 * to the <em>Error</em> state. </p></td></tr>
336 * <tr><td>getDuration </p></td>
337 * <td>{Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
338 * <td>{Idle, Initialized, Error} </p></td>
339 * <td>Successful invoke of this method in a valid state does not change the
340 * state. Calling this method in an invalid state transfers the object
341 * to the <em>Error</em> state. </p></td></tr>
342 * <tr><td>getVideoHeight </p></td>
343 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
344 * PlaybackCompleted}</p></td>
345 * <td>{Error}</p></td>
346 * <td>Successful invoke of this method in a valid state does not change the
347 * state. Calling this method in an invalid state transfers the object
348 * to the <em>Error</em> state. </p></td></tr>
349 * <tr><td>getVideoWidth </p></td>
350 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
351 * PlaybackCompleted}</p></td>
352 * <td>{Error}</p></td>
353 * <td>Successful invoke of this method in a valid state does not change
354 * the state. Calling this method in an invalid state transfers the
355 * object to the <em>Error</em> state. </p></td></tr>
356 * <tr><td>isPlaying </p></td>
357 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
358 * PlaybackCompleted}</p></td>
359 * <td>{Error}</p></td>
360 * <td>Successful invoke of this method in a valid state does not change
361 * the state. Calling this method in an invalid state transfers the
362 * object to the <em>Error</em> state. </p></td></tr>
363 * <tr><td>pause </p></td>
364 * <td>{Started, Paused, PlaybackCompleted}</p></td>
365 * <td>{Idle, Initialized, Prepared, Stopped, Error}</p></td>
366 * <td>Successful invoke of this method in a valid state transfers the
367 * object to the <em>Paused</em> state. Calling this method in an
368 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
369 * <tr><td>prepare </p></td>
370 * <td>{Initialized, Stopped} </p></td>
371 * <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
372 * <td>Successful invoke of this method in a valid state transfers the
373 * object to the <em>Prepared</em> state. Calling this method in an
374 * invalid state throws an IllegalStateException.</p></td></tr>
375 * <tr><td>prepareAsync </p></td>
376 * <td>{Initialized, Stopped} </p></td>
377 * <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
378 * <td>Successful invoke of this method in a valid state transfers the
379 * object to the <em>Preparing</em> state. Calling this method in an
380 * invalid state throws an IllegalStateException.</p></td></tr>
381 * <tr><td>release </p></td>
384 * <td>After {@link #release()}, the object is no longer available. </p></td></tr>
385 * <tr><td>reset </p></td>
386 * <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
387 * PlaybackCompleted, Error}</p></td>
389 * <td>After {@link #reset()}, the object is like being just created.</p></td></tr>
390 * <tr><td>seekTo </p></td>
391 * <td>{Prepared, Started, Paused, PlaybackCompleted} </p></td>
392 * <td>{Idle, Initialized, Stopped, Error}</p></td>
393 * <td>Successful invoke of this method in a valid state does not change
394 * the state. Calling this method in an invalid state transfers the
395 * object to the <em>Error</em> state. </p></td></tr>
396 * <tr><td>setAudioAttributes </p></td>
397 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
398 * PlaybackCompleted}</p></td>
399 * <td>{Error}</p></td>
400 * <td>Successful invoke of this method does not change the state. In order for the
401 * target audio attributes type to become effective, this method must be called before
402 * prepare() or prepareAsync().</p></td></tr>
403 * <tr><td>setAudioSessionId </p></td>
404 * <td>{Idle} </p></td>
405 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
407 * <td>This method must be called in idle state as the audio session ID must be known before
408 * calling setDataSource. Calling it does not change the object state. </p></td></tr>
409 * <tr><td>setAudioStreamType </p></td>
410 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
411 * PlaybackCompleted}</p></td>
412 * <td>{Error}</p></td>
413 * <td>Successful invoke of this method does not change the state. In order for the
414 * target audio stream type to become effective, this method must be called before
415 * prepare() or prepareAsync().</p></td></tr>
416 * <tr><td>setAuxEffectSendLevel </p></td>
419 * <td>Calling this method does not change the object state. </p></td></tr>
420 * <tr><td>setDataSource </p></td>
421 * <td>{Idle} </p></td>
422 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
424 * <td>Successful invoke of this method in a valid state transfers the
425 * object to the <em>Initialized</em> state. Calling this method in an
426 * invalid state throws an IllegalStateException.</p></td></tr>
427 * <tr><td>setDisplay </p></td>
430 * <td>This method can be called in any state and calling it does not change
431 * the object state. </p></td></tr>
432 * <tr><td>setSurface </p></td>
435 * <td>This method can be called in any state and calling it does not change
436 * the object state. </p></td></tr>
437 * <tr><td>setVideoScalingMode </p></td>
438 * <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
439 * <td>{Idle, Error}</p></td>
440 * <td>Successful invoke of this method does not change the state.</p></td></tr>
441 * <tr><td>setLooping </p></td>
442 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
443 * PlaybackCompleted}</p></td>
444 * <td>{Error}</p></td>
445 * <td>Successful invoke of this method in a valid state does not change
446 * the state. Calling this method in an
447 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
448 * <tr><td>isLooping </p></td>
451 * <td>This method can be called in any state and calling it does not change
452 * the object state. </p></td></tr>
453 * <tr><td>setOnBufferingUpdateListener </p></td>
456 * <td>This method can be called in any state and calling it does not change
457 * the object state. </p></td></tr>
458 * <tr><td>setOnCompletionListener </p></td>
461 * <td>This method can be called in any state and calling it does not change
462 * the object state. </p></td></tr>
463 * <tr><td>setOnErrorListener </p></td>
466 * <td>This method can be called in any state and calling it does not change
467 * the object state. </p></td></tr>
468 * <tr><td>setOnPreparedListener </p></td>
471 * <td>This method can be called in any state and calling it does not change
472 * the object state. </p></td></tr>
473 * <tr><td>setOnSeekCompleteListener </p></td>
476 * <td>This method can be called in any state and calling it does not change
477 * the object state. </p></td></tr>
478 * <tr><td>setPlaybackParams</p></td>
479 * <td>{Initialized, Prepared, Started, Paused, PlaybackCompleted, Error}</p></td>
480 * <td>{Idle, Stopped} </p></td>
481 * <td>This method will change state in some cases, depending on when it's called.
483 * <tr><td>setScreenOnWhilePlaying</></td>
486 * <td>This method can be called in any state and calling it does not change
487 * the object state. </p></td></tr>
488 * <tr><td>setVolume </p></td>
489 * <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
490 * PlaybackCompleted}</p></td>
491 * <td>{Error}</p></td>
492 * <td>Successful invoke of this method does not change the state.
493 * <tr><td>setWakeMode </p></td>
496 * <td>This method can be called in any state and calling it does not change
497 * the object state.</p></td></tr>
498 * <tr><td>start </p></td>
499 * <td>{Prepared, Started, Paused, PlaybackCompleted}</p></td>
500 * <td>{Idle, Initialized, Stopped, Error}</p></td>
501 * <td>Successful invoke of this method in a valid state transfers the
502 * object to the <em>Started</em> state. Calling this method in an
503 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
504 * <tr><td>stop </p></td>
505 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
506 * <td>{Idle, Initialized, Error}</p></td>
507 * <td>Successful invoke of this method in a valid state transfers the
508 * object to the <em>Stopped</em> state. Calling this method in an
509 * invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
510 * <tr><td>getTrackInfo </p></td>
511 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
512 * <td>{Idle, Initialized, Error}</p></td>
513 * <td>Successful invoke of this method does not change the state.</p></td></tr>
514 * <tr><td>addTimedTextSource </p></td>
515 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
516 * <td>{Idle, Initialized, Error}</p></td>
517 * <td>Successful invoke of this method does not change the state.</p></td></tr>
518 * <tr><td>selectTrack </p></td>
519 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
520 * <td>{Idle, Initialized, Error}</p></td>
521 * <td>Successful invoke of this method does not change the state.</p></td></tr>
522 * <tr><td>deselectTrack </p></td>
523 * <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
524 * <td>{Idle, Initialized, Error}</p></td>
525 * <td>Successful invoke of this method does not change the state.</p></td></tr>
529 * <a name="Permissions"></a>
530 * <h3>Permissions</h3>
531 * <p>One may need to declare a corresponding WAKE_LOCK permission {@link
532 * android.R.styleable#AndroidManifestUsesPermission <uses-permission>}
535 * <p>This class requires the {@link android.Manifest.permission#INTERNET} permission
536 * when used with network-based content.
538 * <a name="Callbacks"></a>
540 * <p>Applications may want to register for informational and error
541 * events in order to be informed of some internal state update and
542 * possible runtime errors during playback or streaming. Registration for
543 * these events is done by properly setting the appropriate listeners (via calls
545 * {@link #setOnPreparedListener(OnPreparedListener)}setOnPreparedListener,
546 * {@link #setOnVideoSizeChangedListener(OnVideoSizeChangedListener)}setOnVideoSizeChangedListener,
547 * {@link #setOnSeekCompleteListener(OnSeekCompleteListener)}setOnSeekCompleteListener,
548 * {@link #setOnCompletionListener(OnCompletionListener)}setOnCompletionListener,
549 * {@link #setOnBufferingUpdateListener(OnBufferingUpdateListener)}setOnBufferingUpdateListener,
550 * {@link #setOnInfoListener(OnInfoListener)}setOnInfoListener,
551 * {@link #setOnErrorListener(OnErrorListener)}setOnErrorListener, etc).
552 * In order to receive the respective callback
553 * associated with these listeners, applications are required to create
554 * MediaPlayer objects on a thread with its own Looper running (main UI
555 * thread by default has a Looper running).
558 public class MediaPlayer extends PlayerBase
559 implements SubtitleController.Listener
562 Constant to retrieve only the new metadata since the last
565 // FIXME: add link to getMetadata(boolean, boolean)
568 public static final boolean METADATA_UPDATE_ONLY = true;
571 Constant to retrieve all the metadata.
573 // FIXME: add link to getMetadata(boolean, boolean)
576 public static final boolean METADATA_ALL = false;
579 Constant to enable the metadata filter during retrieval.
581 // FIXME: add link to getMetadata(boolean, boolean)
584 public static final boolean APPLY_METADATA_FILTER = true;
587 Constant to disable the metadata filter during retrieval.
589 // FIXME: add link to getMetadata(boolean, boolean)
592 public static final boolean BYPASS_METADATA_FILTER = false;
595 System.loadLibrary("media_jni");
599 private final static String TAG = "MediaPlayer";
600 // Name of the remote interface for the media player. Must be kept
601 // in sync with the 2nd parameter of the IMPLEMENT_META_INTERFACE
602 // macro invocation in IMediaPlayer.cpp
603 private final static String IMEDIA_PLAYER = "android.media.IMediaPlayer";
605 private long mNativeContext; // accessed by native methods
606 private long mNativeSurfaceTexture; // accessed by native methods
607 private int mListenerContext; // accessed by native methods
608 private SurfaceHolder mSurfaceHolder;
609 private EventHandler mEventHandler;
610 private PowerManager.WakeLock mWakeLock = null;
611 private boolean mScreenOnWhilePlaying;
612 private boolean mStayAwake;
613 private int mStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE;
614 private int mUsage = -1;
615 private boolean mBypassInterruptionPolicy;
618 * Default constructor. Consider using one of the create() methods for
619 * synchronously instantiating a MediaPlayer from a Uri or resource.
620 * <p>When done with the MediaPlayer, you should call {@link #release()},
621 * to free the resources. If not released, too many MediaPlayer instances may
622 * result in an exception.</p>
624 public MediaPlayer() {
625 super(new AudioAttributes.Builder().build());
628 if ((looper = Looper.myLooper()) != null) {
629 mEventHandler = new EventHandler(this, looper);
630 } else if ((looper = Looper.getMainLooper()) != null) {
631 mEventHandler = new EventHandler(this, looper);
633 mEventHandler = null;
636 mTimeProvider = new TimeProvider(this);
637 mOpenSubtitleSources = new Vector<InputStream>();
639 /* Native setup requires a weak reference to our object.
640 * It's easier to create it here than in C++.
642 native_setup(new WeakReference<MediaPlayer>(this));
646 * Update the MediaPlayer SurfaceTexture.
647 * Call after setting a new display surface.
649 private native void _setVideoSurface(Surface surface);
651 /* Do not change these values (starting with INVOKE_ID) without updating
652 * their counterparts in include/media/mediaplayer.h!
654 private static final int INVOKE_ID_GET_TRACK_INFO = 1;
655 private static final int INVOKE_ID_ADD_EXTERNAL_SOURCE = 2;
656 private static final int INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3;
657 private static final int INVOKE_ID_SELECT_TRACK = 4;
658 private static final int INVOKE_ID_DESELECT_TRACK = 5;
659 private static final int INVOKE_ID_SET_VIDEO_SCALE_MODE = 6;
660 private static final int INVOKE_ID_GET_SELECTED_TRACK = 7;
663 * Create a request parcel which can be routed to the native media
664 * player using {@link #invoke(Parcel, Parcel)}. The Parcel
665 * returned has the proper InterfaceToken set. The caller should
666 * not overwrite that token, i.e it can only append data to the
669 * @return A parcel suitable to hold a request for the native
673 public Parcel newRequest() {
674 Parcel parcel = Parcel.obtain();
675 parcel.writeInterfaceToken(IMEDIA_PLAYER);
680 * Invoke a generic method on the native player using opaque
681 * parcels for the request and reply. Both payloads' format is a
682 * convention between the java caller and the native player.
683 * Must be called after setDataSource to make sure a native player
684 * exists. On failure, a RuntimeException is thrown.
686 * @param request Parcel with the data for the extension. The
687 * caller must use {@link #newRequest()} to get one.
689 * @param reply Output parcel with the data returned by the
693 public void invoke(Parcel request, Parcel reply) {
694 int retcode = native_invoke(request, reply);
695 reply.setDataPosition(0);
697 throw new RuntimeException("failure code: " + retcode);
702 * Sets the {@link SurfaceHolder} to use for displaying the video
703 * portion of the media.
705 * Either a surface holder or surface must be set if a display or video sink
706 * is needed. Not calling this method or {@link #setSurface(Surface)}
707 * when playing back a video will result in only the audio track being played.
708 * A null surface holder or surface will result in only the audio track being
711 * @param sh the SurfaceHolder to use for video display
712 * @throws IllegalStateException if the internal player engine has not been
713 * initialized or has been released.
715 public void setDisplay(SurfaceHolder sh) {
719 surface = sh.getSurface();
723 _setVideoSurface(surface);
724 updateSurfaceScreenOn();
728 * Sets the {@link Surface} to be used as the sink for the video portion of
729 * the media. This is similar to {@link #setDisplay(SurfaceHolder)}, but
730 * does not support {@link #setScreenOnWhilePlaying(boolean)}. Setting a
731 * Surface will un-set any Surface or SurfaceHolder that was previously set.
732 * A null surface will result in only the audio track being played.
734 * If the Surface sends frames to a {@link SurfaceTexture}, the timestamps
735 * returned from {@link SurfaceTexture#getTimestamp()} will have an
736 * unspecified zero point. These timestamps cannot be directly compared
737 * between different media sources, different instances of the same media
738 * source, or multiple runs of the same program. The timestamp is normally
739 * monotonically increasing and is unaffected by time-of-day adjustments,
740 * but it is reset when the position is set.
742 * @param surface The {@link Surface} to be used for the video portion of
744 * @throws IllegalStateException if the internal player engine has not been
745 * initialized or has been released.
747 public void setSurface(Surface surface) {
748 if (mScreenOnWhilePlaying && surface != null) {
749 Log.w(TAG, "setScreenOnWhilePlaying(true) is ineffective for Surface");
751 mSurfaceHolder = null;
752 _setVideoSurface(surface);
753 updateSurfaceScreenOn();
756 /* Do not change these video scaling mode values below without updating
757 * their counterparts in system/window.h! Please do not forget to update
758 * {@link #isVideoScalingModeSupported} when new video scaling modes
762 * Specifies a video scaling mode. The content is stretched to the
763 * surface rendering area. When the surface has the same aspect ratio
764 * as the content, the aspect ratio of the content is maintained;
765 * otherwise, the aspect ratio of the content is not maintained when video
766 * is being rendered. Unlike {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING},
767 * there is no content cropping with this video scaling mode.
769 public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT = 1;
772 * Specifies a video scaling mode. The content is scaled, maintaining
773 * its aspect ratio. The whole surface area is always used. When the
774 * aspect ratio of the content is the same as the surface, no content
775 * is cropped; otherwise, content is cropped to fit the surface.
777 public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING = 2;
779 * Sets video scaling mode. To make the target video scaling mode
780 * effective during playback, this method must be called after
781 * data source is set. If not called, the default video
782 * scaling mode is {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}.
784 * <p> The supported video scaling modes are:
786 * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}
787 * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING}
790 * @param mode target video scaling mode. Must be one of the supported
791 * video scaling modes; otherwise, IllegalArgumentException will be thrown.
793 * @see MediaPlayer#VIDEO_SCALING_MODE_SCALE_TO_FIT
794 * @see MediaPlayer#VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
796 public void setVideoScalingMode(int mode) {
797 if (!isVideoScalingModeSupported(mode)) {
798 final String msg = "Scaling mode " + mode + " is not supported";
799 throw new IllegalArgumentException(msg);
801 Parcel request = Parcel.obtain();
802 Parcel reply = Parcel.obtain();
804 request.writeInterfaceToken(IMEDIA_PLAYER);
805 request.writeInt(INVOKE_ID_SET_VIDEO_SCALE_MODE);
806 request.writeInt(mode);
807 invoke(request, reply);
815 * Convenience method to create a MediaPlayer for a given Uri.
816 * On success, {@link #prepare()} will already have been called and must not be called again.
817 * <p>When done with the MediaPlayer, you should call {@link #release()},
818 * to free the resources. If not released, too many MediaPlayer instances will
819 * result in an exception.</p>
820 * <p>Note that since {@link #prepare()} is called automatically in this method,
821 * you cannot change the audio stream type (see {@link #setAudioStreamType(int)}), audio
822 * session ID (see {@link #setAudioSessionId(int)}) or audio attributes
823 * (see {@link #setAudioAttributes(AudioAttributes)} of the new MediaPlayer.</p>
825 * @param context the Context to use
826 * @param uri the Uri from which to get the datasource
827 * @return a MediaPlayer object, or null if creation failed
829 public static MediaPlayer create(Context context, Uri uri) {
830 return create (context, uri, null);
834 * Convenience method to create a MediaPlayer for a given Uri.
835 * On success, {@link #prepare()} will already have been called and must not be called again.
836 * <p>When done with the MediaPlayer, you should call {@link #release()},
837 * to free the resources. If not released, too many MediaPlayer instances will
838 * result in an exception.</p>
839 * <p>Note that since {@link #prepare()} is called automatically in this method,
840 * you cannot change the audio stream type (see {@link #setAudioStreamType(int)}), audio
841 * session ID (see {@link #setAudioSessionId(int)}) or audio attributes
842 * (see {@link #setAudioAttributes(AudioAttributes)} of the new MediaPlayer.</p>
844 * @param context the Context to use
845 * @param uri the Uri from which to get the datasource
846 * @param holder the SurfaceHolder to use for displaying the video
847 * @return a MediaPlayer object, or null if creation failed
849 public static MediaPlayer create(Context context, Uri uri, SurfaceHolder holder) {
850 int s = AudioSystem.newAudioSessionId();
851 return create(context, uri, holder, null, s > 0 ? s : 0);
855 * Same factory method as {@link #create(Context, Uri, SurfaceHolder)} but that lets you specify
856 * the audio attributes and session ID to be used by the new MediaPlayer instance.
857 * @param context the Context to use
858 * @param uri the Uri from which to get the datasource
859 * @param holder the SurfaceHolder to use for displaying the video, may be null.
860 * @param audioAttributes the {@link AudioAttributes} to be used by the media player.
861 * @param audioSessionId the audio session ID to be used by the media player,
862 * see {@link AudioManager#generateAudioSessionId()} to obtain a new session.
863 * @return a MediaPlayer object, or null if creation failed
865 public static MediaPlayer create(Context context, Uri uri, SurfaceHolder holder,
866 AudioAttributes audioAttributes, int audioSessionId) {
869 MediaPlayer mp = new MediaPlayer();
870 final AudioAttributes aa = audioAttributes != null ? audioAttributes :
871 new AudioAttributes.Builder().build();
872 mp.setAudioAttributes(aa);
873 mp.setAudioSessionId(audioSessionId);
874 mp.setDataSource(context, uri);
875 if (holder != null) {
876 mp.setDisplay(holder);
880 } catch (IOException ex) {
881 Log.d(TAG, "create failed:", ex);
883 } catch (IllegalArgumentException ex) {
884 Log.d(TAG, "create failed:", ex);
886 } catch (SecurityException ex) {
887 Log.d(TAG, "create failed:", ex);
894 // Note no convenience method to create a MediaPlayer with SurfaceTexture sink.
897 * Convenience method to create a MediaPlayer for a given resource id.
898 * On success, {@link #prepare()} will already have been called and must not be called again.
899 * <p>When done with the MediaPlayer, you should call {@link #release()},
900 * to free the resources. If not released, too many MediaPlayer instances will
901 * result in an exception.</p>
902 * <p>Note that since {@link #prepare()} is called automatically in this method,
903 * you cannot change the audio stream type (see {@link #setAudioStreamType(int)}), audio
904 * session ID (see {@link #setAudioSessionId(int)}) or audio attributes
905 * (see {@link #setAudioAttributes(AudioAttributes)} of the new MediaPlayer.</p>
907 * @param context the Context to use
908 * @param resid the raw resource id (<var>R.raw.<something></var>) for
909 * the resource to use as the datasource
910 * @return a MediaPlayer object, or null if creation failed
912 public static MediaPlayer create(Context context, int resid) {
913 int s = AudioSystem.newAudioSessionId();
914 return create(context, resid, null, s > 0 ? s : 0);
918 * Same factory method as {@link #create(Context, int)} but that lets you specify the audio
919 * attributes and session ID to be used by the new MediaPlayer instance.
920 * @param context the Context to use
921 * @param resid the raw resource id (<var>R.raw.<something></var>) for
922 * the resource to use as the datasource
923 * @param audioAttributes the {@link AudioAttributes} to be used by the media player.
924 * @param audioSessionId the audio session ID to be used by the media player,
925 * see {@link AudioManager#generateAudioSessionId()} to obtain a new session.
926 * @return a MediaPlayer object, or null if creation failed
928 public static MediaPlayer create(Context context, int resid,
929 AudioAttributes audioAttributes, int audioSessionId) {
931 AssetFileDescriptor afd = context.getResources().openRawResourceFd(resid);
932 if (afd == null) return null;
934 MediaPlayer mp = new MediaPlayer();
936 final AudioAttributes aa = audioAttributes != null ? audioAttributes :
937 new AudioAttributes.Builder().build();
938 mp.setAudioAttributes(aa);
939 mp.setAudioSessionId(audioSessionId);
941 mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
945 } catch (IOException ex) {
946 Log.d(TAG, "create failed:", ex);
948 } catch (IllegalArgumentException ex) {
949 Log.d(TAG, "create failed:", ex);
951 } catch (SecurityException ex) {
952 Log.d(TAG, "create failed:", ex);
959 * Sets the data source as a content Uri.
961 * @param context the Context to use when resolving the Uri
962 * @param uri the Content URI of the data you want to play
963 * @throws IllegalStateException if it is called in an invalid state
965 public void setDataSource(@NonNull Context context, @NonNull Uri uri)
966 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException {
967 setDataSource(context, uri, null);
971 * Sets the data source as a content Uri.
973 * @param context the Context to use when resolving the Uri
974 * @param uri the Content URI of the data you want to play
975 * @param headers the headers to be sent together with the request for the data
976 * Note that the cross domain redirection is allowed by default, but that can be
977 * changed with key/value pairs through the headers parameter with
978 * "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value
979 * to disallow or allow cross domain redirection.
980 * @throws IllegalStateException if it is called in an invalid state
982 public void setDataSource(@NonNull Context context, @NonNull Uri uri,
983 @Nullable Map<String, String> headers) throws IOException, IllegalArgumentException,
984 SecurityException, IllegalStateException {
985 final ContentResolver resolver = context.getContentResolver();
986 final String scheme = uri.getScheme();
987 if (ContentResolver.SCHEME_FILE.equals(scheme)) {
988 setDataSource(uri.getPath());
990 } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)
991 && Settings.AUTHORITY.equals(uri.getAuthority())) {
992 // Try cached ringtone first since the actual provider may not be
993 // encryption aware, or it may be stored on CE media storage
994 final int type = RingtoneManager.getDefaultType(uri);
995 final Uri cacheUri = RingtoneManager.getCacheForType(type);
996 final Uri actualUri = RingtoneManager.getActualDefaultRingtoneUri(context, type);
997 if (attemptDataSource(resolver, cacheUri)) {
999 } else if (attemptDataSource(resolver, actualUri)) {
1002 setDataSource(uri.toString(), headers);
1005 // Try requested Uri locally first, or fallback to media server
1006 if (attemptDataSource(resolver, uri)) {
1009 setDataSource(uri.toString(), headers);
1014 private boolean attemptDataSource(ContentResolver resolver, Uri uri) {
1015 try (AssetFileDescriptor afd = resolver.openAssetFileDescriptor(uri, "r")) {
1018 } catch (NullPointerException | SecurityException | IOException ex) {
1019 Log.w(TAG, "Couldn't open " + uri + ": " + ex);
1025 * Sets the data source (file-path or http/rtsp URL) to use.
1027 * @param path the path of the file, or the http/rtsp URL of the stream you want to play
1028 * @throws IllegalStateException if it is called in an invalid state
1030 * <p>When <code>path</code> refers to a local file, the file may actually be opened by a
1031 * process other than the calling application. This implies that the pathname
1032 * should be an absolute path (as any other process runs with unspecified current working
1033 * directory), and that the pathname should reference a world-readable file.
1034 * As an alternative, the application could first open the file for reading,
1035 * and then use the file descriptor form {@link #setDataSource(FileDescriptor)}.
1037 public void setDataSource(String path)
1038 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException {
1039 setDataSource(path, null, null);
1043 * Sets the data source (file-path or http/rtsp URL) to use.
1045 * @param path the path of the file, or the http/rtsp URL of the stream you want to play
1046 * @param headers the headers associated with the http request for the stream you want to play
1047 * @throws IllegalStateException if it is called in an invalid state
1048 * @hide pending API council
1050 public void setDataSource(String path, Map<String, String> headers)
1051 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException
1053 String[] keys = null;
1054 String[] values = null;
1056 if (headers != null) {
1057 keys = new String[headers.size()];
1058 values = new String[headers.size()];
1061 for (Map.Entry<String, String> entry: headers.entrySet()) {
1062 keys[i] = entry.getKey();
1063 values[i] = entry.getValue();
1067 setDataSource(path, keys, values);
1070 private void setDataSource(String path, String[] keys, String[] values)
1071 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException {
1072 final Uri uri = Uri.parse(path);
1073 final String scheme = uri.getScheme();
1074 if ("file".equals(scheme)) {
1075 path = uri.getPath();
1076 } else if (scheme != null) {
1077 // handle non-file sources
1078 nativeSetDataSource(
1079 MediaHTTPService.createHttpServiceBinderIfNecessary(path),
1086 final File file = new File(path);
1087 if (file.exists()) {
1088 FileInputStream is = new FileInputStream(file);
1089 FileDescriptor fd = is.getFD();
1093 throw new IOException("setDataSource failed.");
1097 private native void nativeSetDataSource(
1098 IBinder httpServiceBinder, String path, String[] keys, String[] values)
1099 throws IOException, IllegalArgumentException, SecurityException, IllegalStateException;
1102 * Sets the data source (AssetFileDescriptor) to use. It is the caller's
1103 * responsibility to close the file descriptor. It is safe to do so as soon
1104 * as this call returns.
1106 * @param afd the AssetFileDescriptor for the file you want to play
1107 * @throws IllegalStateException if it is called in an invalid state
1108 * @throws IllegalArgumentException if afd is not a valid AssetFileDescriptor
1109 * @throws IOException if afd can not be read
1111 public void setDataSource(@NonNull AssetFileDescriptor afd)
1112 throws IOException, IllegalArgumentException, IllegalStateException {
1113 Preconditions.checkNotNull(afd);
1114 // Note: using getDeclaredLength so that our behavior is the same
1115 // as previous versions when the content provider is returning
1117 if (afd.getDeclaredLength() < 0) {
1118 setDataSource(afd.getFileDescriptor());
1120 setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getDeclaredLength());
1125 * Sets the data source (FileDescriptor) to use. It is the caller's responsibility
1126 * to close the file descriptor. It is safe to do so as soon as this call returns.
1128 * @param fd the FileDescriptor for the file you want to play
1129 * @throws IllegalStateException if it is called in an invalid state
1130 * @throws IllegalArgumentException if fd is not a valid FileDescriptor
1131 * @throws IOException if fd can not be read
1133 public void setDataSource(FileDescriptor fd)
1134 throws IOException, IllegalArgumentException, IllegalStateException {
1135 // intentionally less than LONG_MAX
1136 setDataSource(fd, 0, 0x7ffffffffffffffL);
1140 * Sets the data source (FileDescriptor) to use. The FileDescriptor must be
1141 * seekable (N.B. a LocalSocket is not seekable). It is the caller's responsibility
1142 * to close the file descriptor. It is safe to do so as soon as this call returns.
1144 * @param fd the FileDescriptor for the file you want to play
1145 * @param offset the offset into the file where the data to be played starts, in bytes
1146 * @param length the length in bytes of the data to be played
1147 * @throws IllegalStateException if it is called in an invalid state
1148 * @throws IllegalArgumentException if fd is not a valid FileDescriptor
1149 * @throws IOException if fd can not be read
1151 public void setDataSource(FileDescriptor fd, long offset, long length)
1152 throws IOException, IllegalArgumentException, IllegalStateException {
1153 _setDataSource(fd, offset, length);
1156 private native void _setDataSource(FileDescriptor fd, long offset, long length)
1157 throws IOException, IllegalArgumentException, IllegalStateException;
1160 * Sets the data source (MediaDataSource) to use.
1162 * @param dataSource the MediaDataSource for the media you want to play
1163 * @throws IllegalStateException if it is called in an invalid state
1164 * @throws IllegalArgumentException if dataSource is not a valid MediaDataSource
1166 public void setDataSource(MediaDataSource dataSource)
1167 throws IllegalArgumentException, IllegalStateException {
1168 _setDataSource(dataSource);
1171 private native void _setDataSource(MediaDataSource dataSource)
1172 throws IllegalArgumentException, IllegalStateException;
1175 * Prepares the player for playback, synchronously.
1177 * After setting the datasource and the display surface, you need to either
1178 * call prepare() or prepareAsync(). For files, it is OK to call prepare(),
1179 * which blocks until MediaPlayer is ready for playback.
1181 * @throws IllegalStateException if it is called in an invalid state
1183 public void prepare() throws IOException, IllegalStateException {
1185 scanInternalSubtitleTracks();
1188 private native void _prepare() throws IOException, IllegalStateException;
1191 * Prepares the player for playback, asynchronously.
1193 * After setting the datasource and the display surface, you need to either
1194 * call prepare() or prepareAsync(). For streams, you should call prepareAsync(),
1195 * which returns immediately, rather than blocking until enough data has been
1198 * @throws IllegalStateException if it is called in an invalid state
1200 public native void prepareAsync() throws IllegalStateException;
1203 * Starts or resumes playback. If playback had previously been paused,
1204 * playback will continue from where it was paused. If playback had
1205 * been stopped, or never started before, playback will start at the
1208 * @throws IllegalStateException if it is called in an invalid state
1210 public void start() throws IllegalStateException {
1216 private native void _start() throws IllegalStateException;
1219 private int getAudioStreamType() {
1220 if (mStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) {
1221 mStreamType = _getAudioStreamType();
1226 private native int _getAudioStreamType() throws IllegalStateException;
1229 * Stops playback after playback has been stopped or paused.
1231 * @throws IllegalStateException if the internal player engine has not been
1234 public void stop() throws IllegalStateException {
1239 private native void _stop() throws IllegalStateException;
1242 * Pauses playback. Call start() to resume.
1244 * @throws IllegalStateException if the internal player engine has not been
1247 public void pause() throws IllegalStateException {
1252 private native void _pause() throws IllegalStateException;
1255 * Set the low-level power management behavior for this MediaPlayer. This
1256 * can be used when the MediaPlayer is not playing through a SurfaceHolder
1257 * set with {@link #setDisplay(SurfaceHolder)} and thus can use the
1258 * high-level {@link #setScreenOnWhilePlaying(boolean)} feature.
1260 * <p>This function has the MediaPlayer access the low-level power manager
1261 * service to control the device's power usage while playing is occurring.
1262 * The parameter is a combination of {@link android.os.PowerManager} wake flags.
1263 * Use of this method requires {@link android.Manifest.permission#WAKE_LOCK}
1265 * By default, no attempt is made to keep the device awake during playback.
1267 * @param context the Context to use
1268 * @param mode the power/wake mode to set
1269 * @see android.os.PowerManager
1271 public void setWakeMode(Context context, int mode) {
1272 boolean washeld = false;
1274 /* Disable persistant wakelocks in media player based on property */
1275 if (SystemProperties.getBoolean("audio.offload.ignore_setawake", false) == true) {
1276 Log.w(TAG, "IGNORING setWakeMode " + mode);
1280 if (mWakeLock != null) {
1281 if (mWakeLock.isHeld()) {
1283 mWakeLock.release();
1288 PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
1289 mWakeLock = pm.newWakeLock(mode|PowerManager.ON_AFTER_RELEASE, MediaPlayer.class.getName());
1290 mWakeLock.setReferenceCounted(false);
1292 mWakeLock.acquire();
1297 * Control whether we should use the attached SurfaceHolder to keep the
1298 * screen on while video playback is occurring. This is the preferred
1299 * method over {@link #setWakeMode} where possible, since it doesn't
1300 * require that the application have permission for low-level wake lock
1303 * @param screenOn Supply true to keep the screen on, false to allow it
1306 public void setScreenOnWhilePlaying(boolean screenOn) {
1307 if (mScreenOnWhilePlaying != screenOn) {
1308 if (screenOn && mSurfaceHolder == null) {
1309 Log.w(TAG, "setScreenOnWhilePlaying(true) is ineffective without a SurfaceHolder");
1311 mScreenOnWhilePlaying = screenOn;
1312 updateSurfaceScreenOn();
1316 private void stayAwake(boolean awake) {
1317 if (mWakeLock != null) {
1318 if (awake && !mWakeLock.isHeld()) {
1319 mWakeLock.acquire();
1320 } else if (!awake && mWakeLock.isHeld()) {
1321 mWakeLock.release();
1325 updateSurfaceScreenOn();
1328 private void updateSurfaceScreenOn() {
1329 if (mSurfaceHolder != null) {
1330 mSurfaceHolder.setKeepScreenOn(mScreenOnWhilePlaying && mStayAwake);
1335 * Returns the width of the video.
1337 * @return the width of the video, or 0 if there is no video,
1338 * no display surface was set, or the width has not been determined
1339 * yet. The OnVideoSizeChangedListener can be registered via
1340 * {@link #setOnVideoSizeChangedListener(OnVideoSizeChangedListener)}
1341 * to provide a notification when the width is available.
1343 public native int getVideoWidth();
1346 * Returns the height of the video.
1348 * @return the height of the video, or 0 if there is no video,
1349 * no display surface was set, or the height has not been determined
1350 * yet. The OnVideoSizeChangedListener can be registered via
1351 * {@link #setOnVideoSizeChangedListener(OnVideoSizeChangedListener)}
1352 * to provide a notification when the height is available.
1354 public native int getVideoHeight();
1357 * Checks whether the MediaPlayer is playing.
1359 * @return true if currently playing, false otherwise
1360 * @throws IllegalStateException if the internal player engine has not been
1361 * initialized or has been released.
1363 public native boolean isPlaying();
1366 * Change playback speed of audio by resampling the audio.
1368 * Specifies resampling as audio mode for variable rate playback, i.e.,
1369 * resample the waveform based on the requested playback rate to get
1370 * a new waveform, and play back the new waveform at the original sampling
1372 * When rate is larger than 1.0, pitch becomes higher.
1373 * When rate is smaller than 1.0, pitch becomes lower.
1377 public static final int PLAYBACK_RATE_AUDIO_MODE_RESAMPLE = 2;
1380 * Change playback speed of audio without changing its pitch.
1382 * Specifies time stretching as audio mode for variable rate playback.
1383 * Time stretching changes the duration of the audio samples without
1384 * affecting its pitch.
1386 * This mode is only supported for a limited range of playback speed factors,
1387 * e.g. between 1/2x and 2x.
1391 public static final int PLAYBACK_RATE_AUDIO_MODE_STRETCH = 1;
1394 * Change playback speed of audio without changing its pitch, and
1395 * possibly mute audio if time stretching is not supported for the playback
1398 * Try to keep audio pitch when changing the playback rate, but allow the
1399 * system to determine how to change audio playback if the rate is out
1404 public static final int PLAYBACK_RATE_AUDIO_MODE_DEFAULT = 0;
1409 PLAYBACK_RATE_AUDIO_MODE_DEFAULT,
1410 PLAYBACK_RATE_AUDIO_MODE_STRETCH,
1411 PLAYBACK_RATE_AUDIO_MODE_RESAMPLE,
1413 @Retention(RetentionPolicy.SOURCE)
1414 public @interface PlaybackRateAudioMode {}
1417 * Sets playback rate and audio mode.
1419 * @param rate the ratio between desired playback rate and normal one.
1420 * @param audioMode audio playback mode. Must be one of the supported
1423 * @throws IllegalStateException if the internal player engine has not been
1425 * @throws IllegalArgumentException if audioMode is not supported.
1430 public PlaybackParams easyPlaybackParams(float rate, @PlaybackRateAudioMode int audioMode) {
1431 PlaybackParams params = new PlaybackParams();
1432 params.allowDefaults();
1433 switch (audioMode) {
1434 case PLAYBACK_RATE_AUDIO_MODE_DEFAULT:
1435 params.setSpeed(rate).setPitch(1.0f);
1437 case PLAYBACK_RATE_AUDIO_MODE_STRETCH:
1438 params.setSpeed(rate).setPitch(1.0f)
1439 .setAudioFallbackMode(params.AUDIO_FALLBACK_MODE_FAIL);
1441 case PLAYBACK_RATE_AUDIO_MODE_RESAMPLE:
1442 params.setSpeed(rate).setPitch(rate);
1445 final String msg = "Audio playback mode " + audioMode + " is not supported";
1446 throw new IllegalArgumentException(msg);
1452 * Sets playback rate using {@link PlaybackParams}. The object sets its internal
1453 * PlaybackParams to the input, except that the object remembers previous speed
1454 * when input speed is zero. This allows the object to resume at previous speed
1455 * when start() is called. Calling it before the object is prepared does not change
1456 * the object state. After the object is prepared, calling it with zero speed is
1457 * equivalent to calling pause(). After the object is prepared, calling it with
1458 * non-zero speed is equivalent to calling start().
1460 * @param params the playback params.
1462 * @throws IllegalStateException if the internal player engine has not been
1463 * initialized or has been released.
1464 * @throws IllegalArgumentException if params is not supported.
1466 public native void setPlaybackParams(@NonNull PlaybackParams params);
1469 * Gets the playback params, containing the current playback rate.
1471 * @return the playback params.
1472 * @throws IllegalStateException if the internal player engine has not been
1476 public native PlaybackParams getPlaybackParams();
1479 * Sets A/V sync mode.
1481 * @param params the A/V sync params to apply
1483 * @throws IllegalStateException if the internal player engine has not been
1485 * @throws IllegalArgumentException if params are not supported.
1487 public native void setSyncParams(@NonNull SyncParams params);
1490 * Gets the A/V sync mode.
1492 * @return the A/V sync params
1494 * @throws IllegalStateException if the internal player engine has not been
1498 public native SyncParams getSyncParams();
1501 * Seeks to specified time position.
1503 * @param msec the offset in milliseconds from the start to seek to
1504 * @throws IllegalStateException if the internal player engine has not been
1507 public native void seekTo(int msec) throws IllegalStateException;
1510 * Get current playback position as a {@link MediaTimestamp}.
1512 * The MediaTimestamp represents how the media time correlates to the system time in
1513 * a linear fashion using an anchor and a clock rate. During regular playback, the media
1514 * time moves fairly constantly (though the anchor frame may be rebased to a current
1515 * system time, the linear correlation stays steady). Therefore, this method does not
1516 * need to be called often.
1518 * To help users get current playback position, this method always anchors the timestamp
1519 * to the current {@link System#nanoTime system time}, so
1520 * {@link MediaTimestamp#getAnchorMediaTimeUs} can be used as current playback position.
1522 * @return a MediaTimestamp object if a timestamp is available, or {@code null} if no timestamp
1523 * is available, e.g. because the media player has not been initialized.
1525 * @see MediaTimestamp
1528 public MediaTimestamp getTimestamp()
1531 // TODO: get the timestamp from native side
1532 return new MediaTimestamp(
1533 getCurrentPosition() * 1000L,
1535 isPlaying() ? getPlaybackParams().getSpeed() : 0.f);
1536 } catch (IllegalStateException e) {
1542 * Gets the current playback position.
1544 * @return the current position in milliseconds
1546 public native int getCurrentPosition();
1549 * Gets the duration of the file.
1551 * @return the duration in milliseconds, if no duration is available
1552 * (for example, if streaming live content), -1 is returned.
1554 public native int getDuration();
1557 * Gets the media metadata.
1559 * @param update_only controls whether the full set of available
1560 * metadata is returned or just the set that changed since the
1561 * last call. See {@see #METADATA_UPDATE_ONLY} and {@see
1564 * @param apply_filter if true only metadata that matches the
1565 * filter is returned. See {@see #APPLY_METADATA_FILTER} and {@see
1566 * #BYPASS_METADATA_FILTER}.
1568 * @return The metadata, possibly empty. null if an error occured.
1572 public Metadata getMetadata(final boolean update_only,
1573 final boolean apply_filter) {
1574 Parcel reply = Parcel.obtain();
1575 Metadata data = new Metadata();
1577 if (!native_getMetadata(update_only, apply_filter, reply)) {
1582 // Metadata takes over the parcel, don't recycle it unless
1583 // there is an error.
1584 if (!data.parse(reply)) {
1592 * Set a filter for the metadata update notification and update
1593 * retrieval. The caller provides 2 set of metadata keys, allowed
1594 * and blocked. The blocked set always takes precedence over the
1596 * Metadata.MATCH_ALL and Metadata.MATCH_NONE are 2 sets available as
1597 * shorthands to allow/block all or no metadata.
1599 * By default, there is no filter set.
1601 * @param allow Is the set of metadata the client is interested
1602 * in receiving new notifications for.
1603 * @param block Is the set of metadata the client is not interested
1604 * in receiving new notifications for.
1605 * @return The call status code.
1610 public int setMetadataFilter(Set<Integer> allow, Set<Integer> block) {
1611 // Do our serialization manually instead of calling
1612 // Parcel.writeArray since the sets are made of the same type
1613 // we avoid paying the price of calling writeValue (used by
1614 // writeArray) which burns an extra int per element to encode
1616 Parcel request = newRequest();
1618 // The parcel starts already with an interface token. There
1619 // are 2 filters. Each one starts with a 4bytes number to
1620 // store the len followed by a number of int (4 bytes as well)
1621 // representing the metadata type.
1622 int capacity = request.dataSize() + 4 * (1 + allow.size() + 1 + block.size());
1624 if (request.dataCapacity() < capacity) {
1625 request.setDataCapacity(capacity);
1628 request.writeInt(allow.size());
1629 for(Integer t: allow) {
1630 request.writeInt(t);
1632 request.writeInt(block.size());
1633 for(Integer t: block) {
1634 request.writeInt(t);
1636 return native_setMetadataFilter(request);
1640 * Set the MediaPlayer to start when this MediaPlayer finishes playback
1641 * (i.e. reaches the end of the stream).
1642 * The media framework will attempt to transition from this player to
1643 * the next as seamlessly as possible. The next player can be set at
1644 * any time before completion. The next player must be prepared by the
1645 * app, and the application should not call start() on it.
1646 * The next MediaPlayer must be different from 'this'. An exception
1647 * will be thrown if next == this.
1648 * The application may call setNextMediaPlayer(null) to indicate no
1649 * next player should be started at the end of playback.
1650 * If the current player is looping, it will keep looping and the next
1651 * player will not be started.
1653 * @param next the player to start after this one completes playback.
1656 public native void setNextMediaPlayer(MediaPlayer next);
1659 * Releases resources associated with this MediaPlayer object.
1660 * It is considered good practice to call this method when you're
1661 * done using the MediaPlayer. In particular, whenever an Activity
1662 * of an application is paused (its onPause() method is called),
1663 * or stopped (its onStop() method is called), this method should be
1664 * invoked to release the MediaPlayer object, unless the application
1665 * has a special need to keep the object around. In addition to
1666 * unnecessary resources (such as memory and instances of codecs)
1667 * being held, failure to call this method immediately if a
1668 * MediaPlayer object is no longer needed may also lead to
1669 * continuous battery consumption for mobile devices, and playback
1670 * failure for other applications if no multiple instances of the
1671 * same codec are supported on a device. Even if multiple instances
1672 * of the same codec are supported, some performance degradation
1673 * may be expected when unnecessary multiple instances are used
1676 public void release() {
1679 updateSurfaceScreenOn();
1680 mOnPreparedListener = null;
1681 mOnBufferingUpdateListener = null;
1682 mOnCompletionListener = null;
1683 mOnSeekCompleteListener = null;
1684 mOnErrorListener = null;
1685 mOnInfoListener = null;
1686 mOnVideoSizeChangedListener = null;
1687 mOnTimedTextListener = null;
1688 if (mTimeProvider != null) {
1689 mTimeProvider.close();
1690 mTimeProvider = null;
1692 mOnSubtitleDataListener = null;
1696 private native void _release();
1699 * Resets the MediaPlayer to its uninitialized state. After calling
1700 * this method, you will have to initialize it again by setting the
1701 * data source and calling prepare().
1703 public void reset() {
1704 mSelectedSubtitleTrackIndex = -1;
1705 synchronized(mOpenSubtitleSources) {
1706 for (final InputStream is: mOpenSubtitleSources) {
1709 } catch (IOException e) {
1712 mOpenSubtitleSources.clear();
1714 if (mSubtitleController != null) {
1715 mSubtitleController.reset();
1717 if (mTimeProvider != null) {
1718 mTimeProvider.close();
1719 mTimeProvider = null;
1724 // make sure none of the listeners get called anymore
1725 if (mEventHandler != null) {
1726 mEventHandler.removeCallbacksAndMessages(null);
1729 synchronized (mIndexTrackPairs) {
1730 mIndexTrackPairs.clear();
1731 mInbandTrackIndices.clear();
1735 private native void _reset();
1738 * Sets the audio stream type for this MediaPlayer. See {@link AudioManager}
1739 * for a list of stream types. Must call this method before prepare() or
1740 * prepareAsync() in order for the target stream type to become effective
1743 * @param streamtype the audio stream type
1744 * @see android.media.AudioManager
1746 public void setAudioStreamType(int streamtype) {
1747 baseUpdateAudioAttributes(
1748 new AudioAttributes.Builder().setInternalLegacyStreamType(streamtype).build());
1749 _setAudioStreamType(streamtype);
1750 mStreamType = streamtype;
1753 private native void _setAudioStreamType(int streamtype);
1755 // Keep KEY_PARAMETER_* in sync with include/media/mediaplayer.h
1756 private final static int KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400;
1758 * Sets the parameter indicated by key.
1759 * @param key key indicates the parameter to be set.
1760 * @param value value of the parameter to be set.
1761 * @return true if the parameter is set successfully, false otherwise
1764 private native boolean setParameter(int key, Parcel value);
1767 * Sets the audio attributes for this MediaPlayer.
1768 * See {@link AudioAttributes} for how to build and configure an instance of this class.
1769 * You must call this method before {@link #prepare()} or {@link #prepareAsync()} in order
1770 * for the audio attributes to become effective thereafter.
1771 * @param attributes a non-null set of audio attributes
1773 public void setAudioAttributes(AudioAttributes attributes) throws IllegalArgumentException {
1774 if (attributes == null) {
1775 final String msg = "Cannot set AudioAttributes to null";
1776 throw new IllegalArgumentException(msg);
1778 baseUpdateAudioAttributes(attributes);
1779 mUsage = attributes.getUsage();
1780 mBypassInterruptionPolicy = (attributes.getAllFlags()
1781 & AudioAttributes.FLAG_BYPASS_INTERRUPTION_POLICY) != 0;
1782 Parcel pattributes = Parcel.obtain();
1783 attributes.writeToParcel(pattributes, AudioAttributes.FLATTEN_TAGS);
1784 setParameter(KEY_PARAMETER_AUDIO_ATTRIBUTES, pattributes);
1785 pattributes.recycle();
1789 * Sets the player to be looping or non-looping.
1791 * @param looping whether to loop or not
1793 public native void setLooping(boolean looping);
1796 * Checks whether the MediaPlayer is looping or non-looping.
1798 * @return true if the MediaPlayer is currently looping, false otherwise
1800 public native boolean isLooping();
1803 * Sets the volume on this player.
1804 * This API is recommended for balancing the output of audio streams
1805 * within an application. Unless you are writing an application to
1806 * control user settings, this API should be used in preference to
1807 * {@link AudioManager#setStreamVolume(int, int, int)} which sets the volume of ALL streams of
1808 * a particular type. Note that the passed volume values are raw scalars in range 0.0 to 1.0.
1809 * UI controls should be scaled logarithmically.
1811 * @param leftVolume left volume scalar
1812 * @param rightVolume right volume scalar
1815 * FIXME: Merge this into javadoc comment above when setVolume(float) is not @hide.
1816 * The single parameter form below is preferred if the channel volumes don't need
1817 * to be set independently.
1819 public void setVolume(float leftVolume, float rightVolume) {
1820 baseSetVolume(leftVolume, rightVolume);
1824 void playerSetVolume(float leftVolume, float rightVolume) {
1825 _setVolume(leftVolume, rightVolume);
1828 private native void _setVolume(float leftVolume, float rightVolume);
1831 * Similar, excepts sets volume of all channels to same value.
1834 public void setVolume(float volume) {
1835 setVolume(volume, volume);
1839 * Sets the audio session ID.
1841 * @param sessionId the audio session ID.
1842 * The audio session ID is a system wide unique identifier for the audio stream played by
1843 * this MediaPlayer instance.
1844 * The primary use of the audio session ID is to associate audio effects to a particular
1845 * instance of MediaPlayer: if an audio session ID is provided when creating an audio effect,
1846 * this effect will be applied only to the audio content of media players within the same
1847 * audio session and not to the output mix.
1848 * When created, a MediaPlayer instance automatically generates its own audio session ID.
1849 * However, it is possible to force this player to be part of an already existing audio session
1850 * by calling this method.
1851 * This method must be called before one of the overloaded <code> setDataSource </code> methods.
1852 * @throws IllegalStateException if it is called in an invalid state
1854 public native void setAudioSessionId(int sessionId) throws IllegalArgumentException, IllegalStateException;
1857 * Returns the audio session ID.
1859 * @return the audio session ID. {@see #setAudioSessionId(int)}
1860 * Note that the audio session ID is 0 only if a problem occured when the MediaPlayer was contructed.
1862 public native int getAudioSessionId();
1865 * Attaches an auxiliary effect to the player. A typical auxiliary effect is a reverberation
1866 * effect which can be applied on any sound source that directs a certain amount of its
1867 * energy to this effect. This amount is defined by setAuxEffectSendLevel().
1868 * See {@link #setAuxEffectSendLevel(float)}.
1869 * <p>After creating an auxiliary effect (e.g.
1870 * {@link android.media.audiofx.EnvironmentalReverb}), retrieve its ID with
1871 * {@link android.media.audiofx.AudioEffect#getId()} and use it when calling this method
1872 * to attach the player to the effect.
1873 * <p>To detach the effect from the player, call this method with a null effect id.
1874 * <p>This method must be called after one of the overloaded <code> setDataSource </code>
1876 * @param effectId system wide unique id of the effect to attach
1878 public native void attachAuxEffect(int effectId);
1882 * Sets the send level of the player to the attached auxiliary effect.
1883 * See {@link #attachAuxEffect(int)}. The level value range is 0 to 1.0.
1884 * <p>By default the send level is 0, so even if an effect is attached to the player
1885 * this method must be called for the effect to be applied.
1886 * <p>Note that the passed level value is a raw scalar. UI controls should be scaled
1887 * logarithmically: the gain applied by audio framework ranges from -72dB to 0dB,
1888 * so an appropriate conversion from linear UI input x to level is:
1889 * x == 0 -> level = 0
1890 * 0 < x <= R -> level = 10^(72*(x-R)/20/R)
1891 * @param level send level scalar
1893 public void setAuxEffectSendLevel(float level) {
1894 baseSetAuxEffectSendLevel(level);
1898 int playerSetAuxEffectSendLevel(float level) {
1899 _setAuxEffectSendLevel(level);
1900 return AudioSystem.SUCCESS;
1903 private native void _setAuxEffectSendLevel(float level);
1906 * @param request Parcel destinated to the media player. The
1907 * Interface token must be set to the IMediaPlayer
1908 * one to be routed correctly through the system.
1909 * @param reply[out] Parcel that will contain the reply.
1910 * @return The status code.
1912 private native final int native_invoke(Parcel request, Parcel reply);
1916 * @param update_only If true fetch only the set of metadata that have
1917 * changed since the last invocation of getMetadata.
1918 * The set is built using the unfiltered
1919 * notifications the native player sent to the
1920 * MediaPlayerService during that period of
1921 * time. If false, all the metadatas are considered.
1922 * @param apply_filter If true, once the metadata set has been built based on
1923 * the value update_only, the current filter is applied.
1924 * @param reply[out] On return contains the serialized
1925 * metadata. Valid only if the call was successful.
1926 * @return The status code.
1928 private native final boolean native_getMetadata(boolean update_only,
1929 boolean apply_filter,
1933 * @param request Parcel with the 2 serialized lists of allowed
1934 * metadata types followed by the one to be
1935 * dropped. Each list starts with an integer
1936 * indicating the number of metadata type elements.
1937 * @return The status code.
1939 private native final int native_setMetadataFilter(Parcel request);
1941 private static native final void native_init();
1942 private native final void native_setup(Object mediaplayer_this);
1943 private native final void native_finalize();
1946 * Class for MediaPlayer to return each audio/video/subtitle track's metadata.
1948 * @see android.media.MediaPlayer#getTrackInfo
1950 static public class TrackInfo implements Parcelable {
1952 * Gets the track type.
1953 * @return TrackType which indicates if the track is video, audio, timed text.
1955 public int getTrackType() {
1960 * Gets the language code of the track.
1961 * @return a language code in either way of ISO-639-1 or ISO-639-2.
1962 * When the language is unknown or could not be determined,
1963 * ISO-639-2 language code, "und", is returned.
1965 public String getLanguage() {
1966 String language = mFormat.getString(MediaFormat.KEY_LANGUAGE);
1967 return language == null ? "und" : language;
1971 * Gets the {@link MediaFormat} of the track. If the format is
1972 * unknown or could not be determined, null is returned.
1974 public MediaFormat getFormat() {
1975 if (mTrackType == MEDIA_TRACK_TYPE_TIMEDTEXT
1976 || mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) {
1982 public static final int MEDIA_TRACK_TYPE_UNKNOWN = 0;
1983 public static final int MEDIA_TRACK_TYPE_VIDEO = 1;
1984 public static final int MEDIA_TRACK_TYPE_AUDIO = 2;
1985 public static final int MEDIA_TRACK_TYPE_TIMEDTEXT = 3;
1986 public static final int MEDIA_TRACK_TYPE_SUBTITLE = 4;
1987 public static final int MEDIA_TRACK_TYPE_METADATA = 5;
1989 final int mTrackType;
1990 final MediaFormat mFormat;
1992 TrackInfo(Parcel in) {
1993 mTrackType = in.readInt();
1994 // TODO: parcel in the full MediaFormat; currently we are using createSubtitleFormat
1995 // even for audio/video tracks, meaning we only set the mime and language.
1996 String mime = in.readString();
1997 String language = in.readString();
1998 mFormat = MediaFormat.createSubtitleFormat(mime, language);
2000 if (mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) {
2001 mFormat.setInteger(MediaFormat.KEY_IS_AUTOSELECT, in.readInt());
2002 mFormat.setInteger(MediaFormat.KEY_IS_DEFAULT, in.readInt());
2003 mFormat.setInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE, in.readInt());
2008 TrackInfo(int type, MediaFormat format) {
2017 public int describeContents() {
2025 public void writeToParcel(Parcel dest, int flags) {
2026 dest.writeInt(mTrackType);
2027 dest.writeString(getLanguage());
2029 if (mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) {
2030 dest.writeString(mFormat.getString(MediaFormat.KEY_MIME));
2031 dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_AUTOSELECT));
2032 dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_DEFAULT));
2033 dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE));
2038 public String toString() {
2039 StringBuilder out = new StringBuilder(128);
2040 out.append(getClass().getName());
2042 switch (mTrackType) {
2043 case MEDIA_TRACK_TYPE_VIDEO:
2044 out.append("VIDEO");
2046 case MEDIA_TRACK_TYPE_AUDIO:
2047 out.append("AUDIO");
2049 case MEDIA_TRACK_TYPE_TIMEDTEXT:
2050 out.append("TIMEDTEXT");
2052 case MEDIA_TRACK_TYPE_SUBTITLE:
2053 out.append("SUBTITLE");
2056 out.append("UNKNOWN");
2059 out.append(", " + mFormat.toString());
2061 return out.toString();
2065 * Used to read a TrackInfo from a Parcel.
2067 static final Parcelable.Creator<TrackInfo> CREATOR
2068 = new Parcelable.Creator<TrackInfo>() {
2070 public TrackInfo createFromParcel(Parcel in) {
2071 return new TrackInfo(in);
2075 public TrackInfo[] newArray(int size) {
2076 return new TrackInfo[size];
2082 // We would like domain specific classes with more informative names than the `first` and `second`
2083 // in generic Pair, but we would also like to avoid creating new/trivial classes. As a compromise
2084 // we document the meanings of `first` and `second` here:
2086 // Pair.first - inband track index; non-null iff representing an inband track.
2087 // Pair.second - a SubtitleTrack registered with mSubtitleController; non-null iff representing
2088 // an inband subtitle track or any out-of-band track (subtitle or timedtext).
2089 private Vector<Pair<Integer, SubtitleTrack>> mIndexTrackPairs = new Vector<>();
2090 private BitSet mInbandTrackIndices = new BitSet();
2093 * Returns an array of track information.
2095 * @return Array of track info. The total number of tracks is the array length.
2096 * Must be called again if an external timed text source has been added after any of the
2097 * addTimedTextSource methods are called.
2098 * @throws IllegalStateException if it is called in an invalid state.
2100 public TrackInfo[] getTrackInfo() throws IllegalStateException {
2101 TrackInfo trackInfo[] = getInbandTrackInfo();
2102 // add out-of-band tracks
2103 synchronized (mIndexTrackPairs) {
2104 TrackInfo allTrackInfo[] = new TrackInfo[mIndexTrackPairs.size()];
2105 for (int i = 0; i < allTrackInfo.length; i++) {
2106 Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i);
2107 if (p.first != null) {
2109 allTrackInfo[i] = trackInfo[p.first];
2111 SubtitleTrack track = p.second;
2112 allTrackInfo[i] = new TrackInfo(track.getTrackType(), track.getFormat());
2115 return allTrackInfo;
2119 private TrackInfo[] getInbandTrackInfo() throws IllegalStateException {
2120 Parcel request = Parcel.obtain();
2121 Parcel reply = Parcel.obtain();
2123 request.writeInterfaceToken(IMEDIA_PLAYER);
2124 request.writeInt(INVOKE_ID_GET_TRACK_INFO);
2125 invoke(request, reply);
2126 TrackInfo trackInfo[] = reply.createTypedArray(TrackInfo.CREATOR);
2134 /* Do not change these values without updating their counterparts
2135 * in include/media/stagefright/MediaDefs.h and media/libstagefright/MediaDefs.cpp!
2138 * MIME type for SubRip (SRT) container. Used in addTimedTextSource APIs.
2140 public static final String MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip";
2143 * MIME type for WebVTT subtitle data.
2146 public static final String MEDIA_MIMETYPE_TEXT_VTT = "text/vtt";
2149 * MIME type for CEA-608 closed caption data.
2152 public static final String MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608";
2155 * MIME type for CEA-708 closed caption data.
2158 public static final String MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708";
2161 * A helper function to check if the mime type is supported by media framework.
2163 private static boolean availableMimeTypeForExternalSource(String mimeType) {
2164 if (MEDIA_MIMETYPE_TEXT_SUBRIP.equals(mimeType)) {
2170 private SubtitleController mSubtitleController;
2173 public void setSubtitleAnchor(
2174 SubtitleController controller,
2175 SubtitleController.Anchor anchor) {
2176 // TODO: create SubtitleController in MediaPlayer
2177 mSubtitleController = controller;
2178 mSubtitleController.setAnchor(anchor);
2182 * The private version of setSubtitleAnchor is used internally to set mSubtitleController if
2183 * necessary when clients don't provide their own SubtitleControllers using the public version
2184 * {@link #setSubtitleAnchor(SubtitleController, Anchor)} (e.g. {@link VideoView} provides one).
2186 private synchronized void setSubtitleAnchor() {
2187 if (mSubtitleController == null) {
2188 final HandlerThread thread = new HandlerThread("SetSubtitleAnchorThread");
2190 Handler handler = new Handler(thread.getLooper());
2191 handler.post(new Runnable() {
2194 Context context = ActivityThread.currentApplication();
2195 mSubtitleController = new SubtitleController(context, mTimeProvider, MediaPlayer.this);
2196 mSubtitleController.setAnchor(new Anchor() {
2198 public void setSubtitleWidget(RenderingWidget subtitleWidget) {
2202 public Looper getSubtitleLooper() {
2203 return Looper.getMainLooper();
2206 thread.getLooper().quitSafely();
2211 } catch (InterruptedException e) {
2212 Thread.currentThread().interrupt();
2213 Log.w(TAG, "failed to join SetSubtitleAnchorThread");
2218 private int mSelectedSubtitleTrackIndex = -1;
2219 private Vector<InputStream> mOpenSubtitleSources;
2221 private OnSubtitleDataListener mSubtitleDataListener = new OnSubtitleDataListener() {
2223 public void onSubtitleData(MediaPlayer mp, SubtitleData data) {
2224 int index = data.getTrackIndex();
2225 synchronized (mIndexTrackPairs) {
2226 for (Pair<Integer, SubtitleTrack> p : mIndexTrackPairs) {
2227 if (p.first != null && p.first == index && p.second != null) {
2228 // inband subtitle track that owns data
2229 SubtitleTrack track = p.second;
2239 public void onSubtitleTrackSelected(SubtitleTrack track) {
2240 if (mSelectedSubtitleTrackIndex >= 0) {
2242 selectOrDeselectInbandTrack(mSelectedSubtitleTrackIndex, false);
2243 } catch (IllegalStateException e) {
2245 mSelectedSubtitleTrackIndex = -1;
2247 setOnSubtitleDataListener(null);
2248 if (track == null) {
2252 synchronized (mIndexTrackPairs) {
2253 for (Pair<Integer, SubtitleTrack> p : mIndexTrackPairs) {
2254 if (p.first != null && p.second == track) {
2255 // inband subtitle track that is selected
2256 mSelectedSubtitleTrackIndex = p.first;
2262 if (mSelectedSubtitleTrackIndex >= 0) {
2264 selectOrDeselectInbandTrack(mSelectedSubtitleTrackIndex, true);
2265 } catch (IllegalStateException e) {
2267 setOnSubtitleDataListener(mSubtitleDataListener);
2269 // no need to select out-of-band tracks
2273 public void addSubtitleSource(InputStream is, MediaFormat format)
2274 throws IllegalStateException
2276 final InputStream fIs = is;
2277 final MediaFormat fFormat = format;
2280 // Ensure all input streams are closed. It is also a handy
2281 // way to implement timeouts in the future.
2282 synchronized(mOpenSubtitleSources) {
2283 mOpenSubtitleSources.add(is);
2286 Log.w(TAG, "addSubtitleSource called with null InputStream");
2289 getMediaTimeProvider();
2291 // process each subtitle in its own thread
2292 final HandlerThread thread = new HandlerThread("SubtitleReadThread",
2293 Process.THREAD_PRIORITY_BACKGROUND + Process.THREAD_PRIORITY_MORE_FAVORABLE);
2295 Handler handler = new Handler(thread.getLooper());
2296 handler.post(new Runnable() {
2297 private int addTrack() {
2298 if (fIs == null || mSubtitleController == null) {
2299 return MEDIA_INFO_UNSUPPORTED_SUBTITLE;
2302 SubtitleTrack track = mSubtitleController.addTrack(fFormat);
2303 if (track == null) {
2304 return MEDIA_INFO_UNSUPPORTED_SUBTITLE;
2307 // TODO: do the conversion in the subtitle track
2308 Scanner scanner = new Scanner(fIs, "UTF-8");
2309 String contents = scanner.useDelimiter("\\A").next();
2310 synchronized(mOpenSubtitleSources) {
2311 mOpenSubtitleSources.remove(fIs);
2314 synchronized (mIndexTrackPairs) {
2315 mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(null, track));
2317 Handler h = mTimeProvider.mEventHandler;
2318 int what = TimeProvider.NOTIFY;
2319 int arg1 = TimeProvider.NOTIFY_TRACK_DATA;
2320 Pair<SubtitleTrack, byte[]> trackData = Pair.create(track, contents.getBytes());
2321 Message m = h.obtainMessage(what, arg1, 0, trackData);
2323 return MEDIA_INFO_EXTERNAL_METADATA_UPDATE;
2327 int res = addTrack();
2328 if (mEventHandler != null) {
2329 Message m = mEventHandler.obtainMessage(MEDIA_INFO, res, 0, null);
2330 mEventHandler.sendMessage(m);
2332 thread.getLooper().quitSafely();
2337 private void scanInternalSubtitleTracks() {
2338 if (mSubtitleController == null) {
2339 Log.d(TAG, "setSubtitleAnchor in MediaPlayer");
2340 setSubtitleAnchor();
2343 populateInbandTracks();
2345 if (mSubtitleController != null) {
2346 mSubtitleController.selectDefaultTrack();
2350 private void populateInbandTracks() {
2351 TrackInfo[] tracks = getInbandTrackInfo();
2352 synchronized (mIndexTrackPairs) {
2353 for (int i = 0; i < tracks.length; i++) {
2354 if (mInbandTrackIndices.get(i)) {
2357 mInbandTrackIndices.set(i);
2360 // newly appeared inband track
2361 if (tracks[i].getTrackType() == TrackInfo.MEDIA_TRACK_TYPE_SUBTITLE) {
2362 SubtitleTrack track = mSubtitleController.addTrack(
2363 tracks[i].getFormat());
2364 mIndexTrackPairs.add(Pair.create(i, track));
2366 mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(i, null));
2372 /* TODO: Limit the total number of external timed text source to a reasonable number.
2375 * Adds an external timed text source file.
2377 * Currently supported format is SubRip with the file extension .srt, case insensitive.
2378 * Note that a single external timed text source may contain multiple tracks in it.
2379 * One can find the total number of available tracks using {@link #getTrackInfo()} to see what
2380 * additional tracks become available after this method call.
2382 * @param path The file path of external timed text source file.
2383 * @param mimeType The mime type of the file. Must be one of the mime types listed above.
2384 * @throws IOException if the file cannot be accessed or is corrupted.
2385 * @throws IllegalArgumentException if the mimeType is not supported.
2386 * @throws IllegalStateException if called in an invalid state.
2388 public void addTimedTextSource(String path, String mimeType)
2389 throws IOException, IllegalArgumentException, IllegalStateException {
2390 if (!availableMimeTypeForExternalSource(mimeType)) {
2391 final String msg = "Illegal mimeType for timed text source: " + mimeType;
2392 throw new IllegalArgumentException(msg);
2395 File file = new File(path);
2396 if (file.exists()) {
2397 FileInputStream is = new FileInputStream(file);
2398 FileDescriptor fd = is.getFD();
2399 addTimedTextSource(fd, mimeType);
2402 // We do not support the case where the path is not a file.
2403 throw new IOException(path);
2408 * Adds an external timed text source file (Uri).
2410 * Currently supported format is SubRip with the file extension .srt, case insensitive.
2411 * Note that a single external timed text source may contain multiple tracks in it.
2412 * One can find the total number of available tracks using {@link #getTrackInfo()} to see what
2413 * additional tracks become available after this method call.
2415 * @param context the Context to use when resolving the Uri
2416 * @param uri the Content URI of the data you want to play
2417 * @param mimeType The mime type of the file. Must be one of the mime types listed above.
2418 * @throws IOException if the file cannot be accessed or is corrupted.
2419 * @throws IllegalArgumentException if the mimeType is not supported.
2420 * @throws IllegalStateException if called in an invalid state.
2422 public void addTimedTextSource(Context context, Uri uri, String mimeType)
2423 throws IOException, IllegalArgumentException, IllegalStateException {
2424 String scheme = uri.getScheme();
2425 if(scheme == null || scheme.equals("file")) {
2426 addTimedTextSource(uri.getPath(), mimeType);
2430 AssetFileDescriptor fd = null;
2432 ContentResolver resolver = context.getContentResolver();
2433 fd = resolver.openAssetFileDescriptor(uri, "r");
2437 addTimedTextSource(fd.getFileDescriptor(), mimeType);
2439 } catch (SecurityException ex) {
2440 } catch (IOException ex) {
2449 * Adds an external timed text source file (FileDescriptor).
2451 * It is the caller's responsibility to close the file descriptor.
2452 * It is safe to do so as soon as this call returns.
2454 * Currently supported format is SubRip. Note that a single external timed text source may
2455 * contain multiple tracks in it. One can find the total number of available tracks
2456 * using {@link #getTrackInfo()} to see what additional tracks become available
2457 * after this method call.
2459 * @param fd the FileDescriptor for the file you want to play
2460 * @param mimeType The mime type of the file. Must be one of the mime types listed above.
2461 * @throws IllegalArgumentException if the mimeType is not supported.
2462 * @throws IllegalStateException if called in an invalid state.
2464 public void addTimedTextSource(FileDescriptor fd, String mimeType)
2465 throws IllegalArgumentException, IllegalStateException {
2466 // intentionally less than LONG_MAX
2467 addTimedTextSource(fd, 0, 0x7ffffffffffffffL, mimeType);
2471 * Adds an external timed text file (FileDescriptor).
2473 * It is the caller's responsibility to close the file descriptor.
2474 * It is safe to do so as soon as this call returns.
2476 * Currently supported format is SubRip. Note that a single external timed text source may
2477 * contain multiple tracks in it. One can find the total number of available tracks
2478 * using {@link #getTrackInfo()} to see what additional tracks become available
2479 * after this method call.
2481 * @param fd the FileDescriptor for the file you want to play
2482 * @param offset the offset into the file where the data to be played starts, in bytes
2483 * @param length the length in bytes of the data to be played
2484 * @param mime The mime type of the file. Must be one of the mime types listed above.
2485 * @throws IllegalArgumentException if the mimeType is not supported.
2486 * @throws IllegalStateException if called in an invalid state.
2488 public void addTimedTextSource(FileDescriptor fd, long offset, long length, String mime)
2489 throws IllegalArgumentException, IllegalStateException {
2490 if (!availableMimeTypeForExternalSource(mime)) {
2491 throw new IllegalArgumentException("Illegal mimeType for timed text source: " + mime);
2496 fd2 = Libcore.os.dup(fd);
2497 } catch (ErrnoException ex) {
2498 Log.e(TAG, ex.getMessage(), ex);
2499 throw new RuntimeException(ex);
2502 final MediaFormat fFormat = new MediaFormat();
2503 fFormat.setString(MediaFormat.KEY_MIME, mime);
2504 fFormat.setInteger(MediaFormat.KEY_IS_TIMED_TEXT, 1);
2506 // A MediaPlayer created by a VideoView should already have its mSubtitleController set.
2507 if (mSubtitleController == null) {
2508 setSubtitleAnchor();
2511 if (!mSubtitleController.hasRendererFor(fFormat)) {
2512 // test and add not atomic
2513 Context context = ActivityThread.currentApplication();
2514 mSubtitleController.registerRenderer(new SRTRenderer(context, mEventHandler));
2516 final SubtitleTrack track = mSubtitleController.addTrack(fFormat);
2517 synchronized (mIndexTrackPairs) {
2518 mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(null, track));
2521 getMediaTimeProvider();
2523 final FileDescriptor fd3 = fd2;
2524 final long offset2 = offset;
2525 final long length2 = length;
2526 final HandlerThread thread = new HandlerThread(
2527 "TimedTextReadThread",
2528 Process.THREAD_PRIORITY_BACKGROUND + Process.THREAD_PRIORITY_MORE_FAVORABLE);
2530 Handler handler = new Handler(thread.getLooper());
2531 handler.post(new Runnable() {
2532 private int addTrack() {
2533 InputStream is = null;
2534 final ByteArrayOutputStream bos = new ByteArrayOutputStream();
2536 Libcore.os.lseek(fd3, offset2, OsConstants.SEEK_SET);
2537 byte[] buffer = new byte[4096];
2538 for (long total = 0; total < length2;) {
2539 int bytesToRead = (int) Math.min(buffer.length, length2 - total);
2540 int bytes = IoBridge.read(fd3, buffer, 0, bytesToRead);
2544 bos.write(buffer, 0, bytes);
2548 Handler h = mTimeProvider.mEventHandler;
2549 int what = TimeProvider.NOTIFY;
2550 int arg1 = TimeProvider.NOTIFY_TRACK_DATA;
2551 Pair<SubtitleTrack, byte[]> trackData = Pair.create(track, bos.toByteArray());
2552 Message m = h.obtainMessage(what, arg1, 0, trackData);
2554 return MEDIA_INFO_EXTERNAL_METADATA_UPDATE;
2555 } catch (Exception e) {
2556 Log.e(TAG, e.getMessage(), e);
2557 return MEDIA_INFO_TIMED_TEXT_ERROR;
2562 } catch (IOException e) {
2563 Log.e(TAG, e.getMessage(), e);
2570 int res = addTrack();
2571 if (mEventHandler != null) {
2572 Message m = mEventHandler.obtainMessage(MEDIA_INFO, res, 0, null);
2573 mEventHandler.sendMessage(m);
2575 thread.getLooper().quitSafely();
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)}.
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()}
2593 * @see #getTrackInfo()
2594 * @see #selectTrack(int)
2595 * @see #deselectTrack(int)
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) {
2614 Parcel request = Parcel.obtain();
2615 Parcel reply = Parcel.obtain();
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) {
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.
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.
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.
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.
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.
2663 * @see android.media.MediaPlayer#getTrackInfo
2665 public void selectTrack(int index) throws IllegalStateException {
2666 selectOrDeselectTrack(index, true /* select */);
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.
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.
2681 * @see android.media.MediaPlayer#getTrackInfo
2683 public void deselectTrack(int index) throws IllegalStateException {
2684 selectOrDeselectTrack(index, false /* select */);
2687 private void selectOrDeselectTrack(int index, boolean select)
2688 throws IllegalStateException {
2689 // handle subtitle track through subtitle controller
2690 populateInbandTracks();
2692 Pair<Integer,SubtitleTrack> p = null;
2694 p = mIndexTrackPairs.get(index);
2695 } catch (ArrayIndexOutOfBoundsException e) {
2700 SubtitleTrack track = p.second;
2701 if (track == null) {
2702 // inband (de)select
2703 selectOrDeselectInbandTrack(p.first, select);
2707 if (mSubtitleController == null) {
2712 // out-of-band deselect
2713 if (mSubtitleController.getSelectedTrack() == track) {
2714 mSubtitleController.selectTrack(null);
2716 Log.w(TAG, "trying to deselect track that was not selected");
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);
2734 mSubtitleController.selectTrack(track);
2737 private void selectOrDeselectInbandTrack(int index, boolean select)
2738 throws IllegalStateException {
2739 Parcel request = Parcel.obtain();
2740 Parcel reply = Parcel.obtain();
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);
2754 * @param reply Parcel with audio/video duration info for battery
2756 * @return The status code.
2759 public native static int native_pullBatteryData(Parcel reply);
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...
2773 * aahRX://<multicastIP>:<port>
2775 * to receive, decode and render the re-transmitted content.
2777 * setRetransmitEndpoint may only be called before setDataSource has been
2778 * called; while the player is in the Idle state.
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,
2786 * {@hide} pending API council
2788 public void setRetransmitEndpoint(InetSocketAddress endpoint)
2789 throws IllegalStateException, IllegalArgumentException
2791 String addrString = null;
2794 if (null != endpoint) {
2795 addrString = endpoint.getAddress().getHostAddress();
2796 port = endpoint.getPort();
2799 int ret = native_setRetransmitEndpoint(addrString, port);
2801 throw new IllegalArgumentException("Illegal re-transmit endpoint; native ret " + ret);
2805 private native final int native_setRetransmitEndpoint(String addrString, int port);
2808 protected void finalize() {
2813 /* Do not change these values without updating their counterparts
2814 * in include/media/mediaplayer.h!
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;
2832 private TimeProvider mTimeProvider;
2835 public MediaTimeProvider getMediaTimeProvider() {
2836 if (mTimeProvider == null) {
2837 mTimeProvider = new TimeProvider(this);
2839 return mTimeProvider;
2842 private class EventHandler extends Handler
2844 private MediaPlayer mMediaPlayer;
2846 public EventHandler(MediaPlayer mp, Looper looper) {
2852 public void handleMessage(Message msg) {
2853 if (mMediaPlayer.mNativeContext == 0) {
2854 Log.w(TAG, "mediaplayer went away with unhandled events");
2858 case MEDIA_PREPARED:
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);
2869 OnPreparedListener onPreparedListener = mOnPreparedListener;
2870 if (onPreparedListener != null)
2871 onPreparedListener.onPrepared(mMediaPlayer);
2874 case MEDIA_PLAYBACK_COMPLETE:
2876 OnCompletionListener onCompletionListener = mOnCompletionListener;
2877 if (onCompletionListener != null)
2878 onCompletionListener.onCompletion(mMediaPlayer);
2885 TimeProvider timeProvider = mTimeProvider;
2886 if (timeProvider != null) {
2887 timeProvider.onStopped();
2895 TimeProvider timeProvider = mTimeProvider;
2896 if (timeProvider != null) {
2897 timeProvider.onPaused(msg.what == MEDIA_PAUSED);
2902 case MEDIA_BUFFERING_UPDATE:
2903 OnBufferingUpdateListener onBufferingUpdateListener = mOnBufferingUpdateListener;
2904 if (onBufferingUpdateListener != null)
2905 onBufferingUpdateListener.onBufferingUpdate(mMediaPlayer, msg.arg1);
2908 case MEDIA_SEEK_COMPLETE:
2909 OnSeekCompleteListener onSeekCompleteListener = mOnSeekCompleteListener;
2910 if (onSeekCompleteListener != null) {
2911 onSeekCompleteListener.onSeekComplete(mMediaPlayer);
2917 TimeProvider timeProvider = mTimeProvider;
2918 if (timeProvider != null) {
2919 timeProvider.onSeekComplete(mMediaPlayer);
2924 case MEDIA_SET_VIDEO_SIZE:
2925 OnVideoSizeChangedListener onVideoSizeChangedListener = mOnVideoSizeChangedListener;
2926 if (onVideoSizeChangedListener != null) {
2927 onVideoSizeChangedListener.onVideoSizeChanged(
2928 mMediaPlayer, msg.arg1, msg.arg2);
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);
2940 OnCompletionListener onCompletionListener = mOnCompletionListener;
2941 if (onCompletionListener != null && ! error_was_handled) {
2942 onCompletionListener.onCompletion(mMediaPlayer);
2950 case MEDIA_INFO_VIDEO_TRACK_LAGGING:
2951 Log.i(TAG, "Info (" + msg.arg1 + "," + msg.arg2 + ")");
2953 case MEDIA_INFO_METADATA_UPDATE:
2955 scanInternalSubtitleTracks();
2956 } catch (RuntimeException e) {
2957 Message msg2 = obtainMessage(
2958 MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, MEDIA_ERROR_UNSUPPORTED, null);
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();
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);
2979 OnInfoListener onInfoListener = mOnInfoListener;
2980 if (onInfoListener != null) {
2981 onInfoListener.onInfo(mMediaPlayer, msg.arg1, msg.arg2);
2983 // No real default action so far.
2985 case MEDIA_TIMED_TEXT:
2986 OnTimedTextListener onTimedTextListener = mOnTimedTextListener;
2987 if (onTimedTextListener == null)
2989 if (msg.obj == null) {
2990 onTimedTextListener.onTimedText(mMediaPlayer, null);
2992 if (msg.obj instanceof Parcel) {
2993 Parcel parcel = (Parcel)msg.obj;
2994 TimedText text = new TimedText(parcel);
2996 onTimedTextListener.onTimedText(mMediaPlayer, text);
3001 case MEDIA_SUBTITLE_DATA:
3002 OnSubtitleDataListener onSubtitleDataListener = mOnSubtitleDataListener;
3003 if (onSubtitleDataListener == null) {
3006 if (msg.obj instanceof Parcel) {
3007 Parcel parcel = (Parcel) msg.obj;
3008 SubtitleData data = new SubtitleData(parcel);
3010 onSubtitleDataListener.onSubtitleData(mMediaPlayer, data);
3014 case MEDIA_META_DATA:
3015 OnTimedMetaDataAvailableListener onTimedMetaDataAvailableListener =
3016 mOnTimedMetaDataAvailableListener;
3017 if (onTimedMetaDataAvailableListener == null) {
3020 if (msg.obj instanceof Parcel) {
3021 Parcel parcel = (Parcel) msg.obj;
3022 TimedMetaData data = TimedMetaData.createTimedMetaDataFromParcel(parcel);
3024 onTimedMetaDataAvailableListener.onTimedMetaDataAvailable(mMediaPlayer, data);
3028 case MEDIA_NOP: // interface test message - ignore
3032 Log.e(TAG, "Unknown message type " + msg.what);
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().)
3045 private static void postEventFromNative(Object mediaplayer_ref,
3046 int what, int arg1, int arg2, Object obj)
3048 MediaPlayer mp = (MediaPlayer)((WeakReference)mediaplayer_ref).get();
3053 if (what == MEDIA_INFO && arg1 == MEDIA_INFO_STARTED_AS_NEXT) {
3054 // this acquires the wakelock if needed, and sets the client side state
3057 if (mp.mEventHandler != null) {
3058 Message m = mp.mEventHandler.obtainMessage(what, arg1, arg2, obj);
3059 mp.mEventHandler.sendMessage(m);
3064 * Interface definition for a callback to be invoked when the media
3065 * source is ready for playback.
3067 public interface OnPreparedListener
3070 * Called when the media file is ready for playback.
3072 * @param mp the MediaPlayer that is ready for playback
3074 void onPrepared(MediaPlayer mp);
3078 * Register a callback to be invoked when the media source is ready
3081 * @param listener the callback that will be run
3083 public void setOnPreparedListener(OnPreparedListener listener)
3085 mOnPreparedListener = listener;
3088 private OnPreparedListener mOnPreparedListener;
3091 * Interface definition for a callback to be invoked when playback of
3092 * a media source has completed.
3094 public interface OnCompletionListener
3097 * Called when the end of a media source is reached during playback.
3099 * @param mp the MediaPlayer that reached the end of the file
3101 void onCompletion(MediaPlayer mp);
3105 * Register a callback to be invoked when the end of a media source
3106 * has been reached during playback.
3108 * @param listener the callback that will be run
3110 public void setOnCompletionListener(OnCompletionListener listener)
3112 mOnCompletionListener = listener;
3115 private OnCompletionListener mOnCompletionListener;
3118 * Interface definition of a callback to be invoked indicating buffering
3119 * status of a media resource being streamed over the network.
3121 public interface OnBufferingUpdateListener
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.
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
3135 void onBufferingUpdate(MediaPlayer mp, int percent);
3139 * Register a callback to be invoked when the status of a network
3140 * stream's buffer has changed.
3142 * @param listener the callback that will be run.
3144 public void setOnBufferingUpdateListener(OnBufferingUpdateListener listener)
3146 mOnBufferingUpdateListener = listener;
3149 private OnBufferingUpdateListener mOnBufferingUpdateListener;
3152 * Interface definition of a callback to be invoked indicating
3153 * the completion of a seek operation.
3155 public interface OnSeekCompleteListener
3158 * Called to indicate the completion of a seek operation.
3160 * @param mp the MediaPlayer that issued the seek operation
3162 public void onSeekComplete(MediaPlayer mp);
3166 * Register a callback to be invoked when a seek operation has been
3169 * @param listener the callback that will be run
3171 public void setOnSeekCompleteListener(OnSeekCompleteListener listener)
3173 mOnSeekCompleteListener = listener;
3176 private OnSeekCompleteListener mOnSeekCompleteListener;
3179 * Interface definition of a callback to be invoked when the
3180 * video size is first known or updated
3182 public interface OnVideoSizeChangedListener
3185 * Called to indicate the video size
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.
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
3194 public void onVideoSizeChanged(MediaPlayer mp, int width, int height);
3198 * Register a callback to be invoked when the video size is
3201 * @param listener the callback that will be run
3203 public void setOnVideoSizeChangedListener(OnVideoSizeChangedListener listener)
3205 mOnVideoSizeChangedListener = listener;
3208 private OnVideoSizeChangedListener mOnVideoSizeChangedListener;
3211 * Interface definition of a callback to be invoked when a
3212 * timed text is available for display.
3214 public interface OnTimedTextListener
3217 * Called to indicate an avaliable timed text
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.
3223 public void onTimedText(MediaPlayer mp, TimedText text);
3227 * Register a callback to be invoked when a timed text is available
3230 * @param listener the callback that will be run
3232 public void setOnTimedTextListener(OnTimedTextListener listener)
3234 mOnTimedTextListener = listener;
3237 private OnTimedTextListener mOnTimedTextListener;
3240 * Interface definition of a callback to be invoked when a
3241 * track has data available.
3245 public interface OnSubtitleDataListener
3247 public void onSubtitleData(MediaPlayer mp, SubtitleData data);
3251 * Register a callback to be invoked when a track has data available.
3253 * @param listener the callback that will be run
3257 public void setOnSubtitleDataListener(OnSubtitleDataListener listener)
3259 mOnSubtitleDataListener = listener;
3262 private OnSubtitleDataListener mOnSubtitleDataListener;
3265 * Interface definition of a callback to be invoked when a
3266 * track has timed metadata available.
3268 * @see MediaPlayer#setOnTimedMetaDataAvailableListener(OnTimedMetaDataAvailableListener)
3270 public interface OnTimedMetaDataAvailableListener
3273 * Called to indicate avaliable timed metadata
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.
3279 * @param mp the MediaPlayer associated with this callback
3280 * @param data the timed metadata sample associated with this event
3282 public void onTimedMetaDataAvailable(MediaPlayer mp, TimedMetaData data);
3286 * Register a callback to be invoked when a selected track has timed metadata available.
3288 * Currently only HTTP live streaming data URI's embedded with timed ID3 tags generates
3289 * {@link TimedMetaData}.
3291 * @see MediaPlayer#selectTrack(int)
3292 * @see MediaPlayer.OnTimedMetaDataAvailableListener
3293 * @see TimedMetaData
3295 * @param listener the callback that will be run
3297 public void setOnTimedMetaDataAvailableListener(OnTimedMetaDataAvailableListener listener)
3299 mOnTimedMetaDataAvailableListener = listener;
3302 private OnTimedMetaDataAvailableListener mOnTimedMetaDataAvailableListener;
3304 /* Do not change these values without updating their counterparts
3305 * in include/media/mediaplayer.h!
3307 /** Unspecified media player error.
3308 * @see android.media.MediaPlayer.OnErrorListener
3310 public static final int MEDIA_ERROR_UNKNOWN = 1;
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
3316 public static final int MEDIA_ERROR_SERVER_DIED = 100;
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
3321 * @see android.media.MediaPlayer.OnErrorListener
3323 public static final int MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200;
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;
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
3340 public static final int MEDIA_ERROR_SYSTEM = -2147483648;
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).
3347 public interface OnErrorListener
3350 * Called to indicate an error.
3352 * @param mp the MediaPlayer the error pertains to
3353 * @param what the type of error that has occurred:
3355 * <li>{@link #MEDIA_ERROR_UNKNOWN}
3356 * <li>{@link #MEDIA_ERROR_SERVER_DIED}
3358 * @param extra an extra code, specific to the error. Typically
3359 * implementation dependent.
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.
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.
3371 boolean onError(MediaPlayer mp, int what, int extra);
3375 * Register a callback to be invoked when an error has happened
3376 * during an asynchronous operation.
3378 * @param listener the callback that will be run
3380 public void setOnErrorListener(OnErrorListener listener)
3382 mOnErrorListener = listener;
3385 private OnErrorListener mOnErrorListener;
3388 /* Do not change these values without updating their counterparts
3389 * in include/media/mediaplayer.h!
3391 /** Unspecified media player info.
3392 * @see android.media.MediaPlayer.OnInfoListener
3394 public static final int MEDIA_INFO_UNKNOWN = 1;
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
3401 public static final int MEDIA_INFO_STARTED_AS_NEXT = 2;
3403 /** The player just pushed the very first video frame for rendering.
3404 * @see android.media.MediaPlayer.OnInfoListener
3406 public static final int MEDIA_INFO_VIDEO_RENDERING_START = 3;
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
3412 public static final int MEDIA_INFO_VIDEO_TRACK_LAGGING = 700;
3414 /** MediaPlayer is temporarily pausing playback internally in order to
3416 * @see android.media.MediaPlayer.OnInfoListener
3418 public static final int MEDIA_INFO_BUFFERING_START = 701;
3420 /** MediaPlayer is resuming playback after filling buffers.
3421 * @see android.media.MediaPlayer.OnInfoListener
3423 public static final int MEDIA_INFO_BUFFERING_END = 702;
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
3431 public static final int MEDIA_INFO_NETWORK_BANDWIDTH = 703;
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
3438 public static final int MEDIA_INFO_BAD_INTERLEAVING = 800;
3440 /** The media cannot be seeked (e.g live stream)
3441 * @see android.media.MediaPlayer.OnInfoListener
3443 public static final int MEDIA_INFO_NOT_SEEKABLE = 801;
3445 /** A new set of metadata is available.
3446 * @see android.media.MediaPlayer.OnInfoListener
3448 public static final int MEDIA_INFO_METADATA_UPDATE = 802;
3450 /** A new set of external-only metadata is available. Used by
3451 * JAVA framework to avoid triggering track scanning.
3454 public static final int MEDIA_INFO_EXTERNAL_METADATA_UPDATE = 803;
3456 /** Failed to handle timed text track properly.
3457 * @see android.media.MediaPlayer.OnInfoListener
3461 public static final int MEDIA_INFO_TIMED_TEXT_ERROR = 900;
3463 /** Subtitle track was not supported by the media framework.
3464 * @see android.media.MediaPlayer.OnInfoListener
3466 public static final int MEDIA_INFO_UNSUPPORTED_SUBTITLE = 901;
3468 /** Reading the subtitle track takes too long.
3469 * @see android.media.MediaPlayer.OnInfoListener
3471 public static final int MEDIA_INFO_SUBTITLE_TIMED_OUT = 902;
3474 * Interface definition of a callback to be invoked to communicate some
3475 * info and/or warning about the media or its playback.
3477 public interface OnInfoListener
3480 * Called to indicate an info or a warning.
3482 * @param mp the MediaPlayer the info pertains to.
3483 * @param what the type of info or warning.
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}
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.
3504 boolean onInfo(MediaPlayer mp, int what, int extra);
3508 * Register a callback to be invoked when an info/warning is available.
3510 * @param listener the callback that will be run
3512 public void setOnInfoListener(OnInfoListener listener)
3514 mOnInfoListener = listener;
3517 private OnInfoListener mOnInfoListener;
3520 * Test whether a given video scaling mode is supported.
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);
3528 static class TimeProvider implements MediaPlayer.OnSeekCompleteListener,
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;
3559 public boolean DEBUG = false;
3561 public TimeProvider(MediaPlayer mp) {
3564 getCurrentTimeUs(true, false);
3565 } catch (IllegalStateException e) {
3566 // we assume starting position
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();
3579 mEventHandler = new EventHandler(looper);
3581 mListeners = new MediaTimeProvider.OnMediaTimeListener[0];
3582 mTimes = new long[0];
3584 mTimeAdjustment = 0;
3587 private void scheduleNotification(int type, long delayUs) {
3588 // ignore time notifications until seek is handled
3590 (type == NOTIFY_TIME || type == REFRESH_AND_NOTIFY_TIME)) {
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));
3601 public void close() {
3602 mEventHandler.removeMessages(NOTIFY);
3603 if (mHandlerThread != null) {
3604 mHandlerThread.quitSafely();
3605 mHandlerThread = null;
3610 protected void finalize() {
3611 if (mHandlerThread != null) {
3612 mHandlerThread.quitSafely();
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
3623 scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
3625 mPausing = paused; // special handling if player disappeared
3627 scheduleNotification(REFRESH_AND_NOTIFY_TIME, 0 /* delay */);
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 */);
3642 public void onStopped() {
3643 synchronized(this) {
3644 if (DEBUG) Log.d(TAG, "onStopped");
3649 scheduleNotification(NOTIFY_STOP, 0 /* delay */);
3655 public void onSeekComplete(MediaPlayer mp) {
3656 synchronized(this) {
3659 scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
3664 public void onNewPlayer() {
3666 synchronized(this) {
3670 scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
3675 private synchronized void notifySeek() {
3678 long timeUs = getCurrentTimeUs(true, false);
3679 if (DEBUG) Log.d(TAG, "onSeekComplete at " + timeUs);
3681 for (MediaTimeProvider.OnMediaTimeListener listener: mListeners) {
3682 if (listener == null) {
3685 listener.onSeek(timeUs);
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 */);
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 */);
3701 private synchronized void notifyStop() {
3702 for (MediaTimeProvider.OnMediaTimeListener listener: mListeners) {
3703 if (listener == null) {
3710 private int registerListener(MediaTimeProvider.OnMediaTimeListener listener) {
3712 for (; i < mListeners.length; i++) {
3713 if (mListeners[i] == listener || mListeners[i] == null) {
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;
3729 if (mListeners[i] == null) {
3730 mListeners[i] = listener;
3731 mTimes[i] = MediaTimeProvider.NO_TIME;
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 */);
3745 public void scheduleUpdate(MediaTimeProvider.OnMediaTimeListener listener) {
3746 synchronized(this) {
3747 if (DEBUG) Log.d(TAG, "scheduleUpdate");
3748 int i = registerListener(listener);
3752 scheduleNotification(NOTIFY_TIME, 0 /* delay */);
3757 public void cancelNotifications(
3758 MediaTimeProvider.OnMediaTimeListener listener) {
3759 synchronized(this) {
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;
3770 } else if (mListeners[i] == null) {
3775 scheduleNotification(NOTIFY_TIME, 0 /* delay */);
3779 private synchronized void notifyTimedEvent(boolean refreshTime) {
3780 // figure out next callback
3783 nowUs = getCurrentTimeUs(refreshTime, true);
3784 } catch (IllegalStateException e) {
3785 // assume we paused until new player arrives
3787 mPausing = true; // this ensures that call succeeds
3788 nowUs = getCurrentTimeUs(refreshTime, true);
3790 long nextTimeUs = nowUs;
3793 // skip timed-event notifications until seek is complete
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) {
3806 if (!first) sb.append(", ");
3811 Log.d(TAG, sb.toString());
3814 Vector<MediaTimeProvider.OnMediaTimeListener> activatedListeners =
3815 new Vector<MediaTimeProvider.OnMediaTimeListener>();
3816 for (int ix = 0; ix < mTimes.length; ix++) {
3817 if (mListeners[ix] == null) {
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];
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);
3836 mEventHandler.removeMessages(NOTIFY);
3837 // no more callbacks
3840 for (MediaTimeProvider.OnMediaTimeListener listener: activatedListeners) {
3841 listener.onTimedEvent(nowUs);
3845 private long getEstimatedTime(long nanoTime, boolean monotonic) {
3847 mLastReportedTime = mLastTimeUs + mTimeAdjustment;
3849 long timeSinceRead = (nanoTime - mLastNanoTime) / 1000;
3850 mLastReportedTime = mLastTimeUs + timeSinceRead;
3851 if (mTimeAdjustment > 0) {
3853 mTimeAdjustment - timeSinceRead / TIME_ADJUSTMENT_RATE;
3854 if (adjustment <= 0) {
3855 mTimeAdjustment = 0;
3857 mLastReportedTime += adjustment;
3861 return mLastReportedTime;
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;
3873 long nanoTime = System.nanoTime();
3875 nanoTime >= mLastNanoTime + MAX_NS_WITHOUT_POSITION_CHECK) {
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) {
3882 // if we were pausing, get last estimated timestamp
3884 getEstimatedTime(nanoTime, monotonic);
3886 if (DEBUG) Log.d(TAG, "illegal state, but pausing: estimating at " + mLastReportedTime);
3887 return mLastReportedTime;
3889 // TODO get time when prepared
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
3901 scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
3904 mTimeAdjustment = 0;
3908 return getEstimatedTime(nanoTime, monotonic);
3912 private class EventHandler extends Handler {
3913 public EventHandler(Looper looper) {
3918 public void handleMessage(Message msg) {
3919 if (msg.what == NOTIFY) {
3922 notifyTimedEvent(false /* refreshTime */);
3924 case REFRESH_AND_NOTIFY_TIME:
3925 notifyTimedEvent(true /* refreshTime */);
3933 case NOTIFY_TRACK_DATA:
3934 notifyTrackData((Pair<SubtitleTrack, byte[]>)msg.obj);