1498 lines
60 KiB
Java
1498 lines
60 KiB
Java
/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.media;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.res.AssetFileDescriptor;
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import android.net.Uri;
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import android.os.Handler;
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import android.os.Looper;
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import android.os.Message;
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import android.os.Parcel;
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import android.os.ParcelFileDescriptor;
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import android.os.PowerManager;
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import android.util.Log;
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import android.view.Surface;
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import android.view.SurfaceHolder;
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import android.graphics.Bitmap;
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import android.media.AudioManager;
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import java.io.FileDescriptor;
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import java.io.IOException;
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import java.util.Set;
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import java.lang.ref.WeakReference;
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/**
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* MediaPlayer class can be used to control playback
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* of audio/video files and streams. An example on how to use the methods in
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* this class can be found in {@link android.widget.VideoView}.
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* Please see <a href="{@docRoot}guide/topics/media/index.html">Audio and Video</a>
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* for additional help using MediaPlayer.
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*
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* <p>Topics covered here are:
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* <ol>
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* <li><a href="#StateDiagram">State Diagram</a>
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* <li><a href="#Valid_and_Invalid_States">Valid and Invalid States</a>
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* <li><a href="#Permissions">Permissions</a>
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* </ol>
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*
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* <a name="StateDiagram"></a>
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* <h3>State Diagram</h3>
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*
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* <p>Playback control of audio/video files and streams is managed as a state
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* machine. The following diagram shows the life cycle and the states of a
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* MediaPlayer object driven by the supported playback control operations.
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* The ovals represent the states a MediaPlayer object may reside
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* in. The arcs represent the playback control operations that drive the object
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* state transition. There are two types of arcs. The arcs with a single arrow
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* head represent synchronous method calls, while those with
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* a double arrow head represent asynchronous method calls.</p>
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*
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* <p><img src="../../../images/mediaplayer_state_diagram.gif"
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* alt="MediaPlayer State diagram"
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* border="0" /></p>
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*
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* <p>From this state diagram, one can see that a MediaPlayer object has the
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* following states:</p>
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* <ul>
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* <li>When a MediaPlayer object is just created using <code>new</code> or
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* after {@link #reset()} is called, it is in the <em>Idle</em> state; and after
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* {@link #release()} is called, it is in the <em>End</em> state. Between these
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* two states is the life cycle of the MediaPlayer object.
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* <ul>
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* <li>There is a subtle but important difference between a newly constructed
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* MediaPlayer object and the MediaPlayer object after {@link #reset()}
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* is called. It is a programming error to invoke methods such
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* as {@link #getCurrentPosition()},
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* {@link #getDuration()}, {@link #getVideoHeight()},
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* {@link #getVideoWidth()}, {@link #setAudioStreamType(int)},
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* {@link #setLooping(boolean)},
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* {@link #setVolume(float, float)}, {@link #pause()}, {@link #start()},
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* {@link #stop()}, {@link #seekTo(int)}, {@link #prepare()} or
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* {@link #prepareAsync()} in the <em>Idle</em> state for both cases. If any of these
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* methods is called right after a MediaPlayer object is constructed,
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* the user supplied callback method OnErrorListener.onError() won't be
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* called by the internal player engine and the object state remains
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* unchanged; but if these methods are called right after {@link #reset()},
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* the user supplied callback method OnErrorListener.onError() will be
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* invoked by the internal player engine and the object will be
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* transfered to the <em>Error</em> state. </li>
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* <li>It is also recommended that once
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* a MediaPlayer object is no longer being used, call {@link #release()} immediately
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* so that resources used by the internal player engine associated with the
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* MediaPlayer object can be released immediately. Resource may include
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* singleton resources such as hardware acceleration components and
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* failure to call {@link #release()} may cause subsequent instances of
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* MediaPlayer objects to fallback to software implementations or fail
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* altogether. Once the MediaPlayer
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* object is in the <em>End</em> state, it can no longer be used and
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* there is no way to bring it back to any other state. </li>
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* <li>Furthermore,
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* the MediaPlayer objects created using <code>new</code> is in the
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* <em>Idle</em> state, while those created with one
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* of the overloaded convenient <code>create</code> methods are <em>NOT</em>
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* in the <em>Idle</em> state. In fact, the objects are in the <em>Prepared</em>
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* state if the creation using <code>create</code> method is successful.
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* </li>
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* </ul>
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* </li>
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* <li>In general, some playback control operation may fail due to various
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* reasons, such as unsupported audio/video format, poorly interleaved
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* audio/video, resolution too high, streaming timeout, and the like.
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* Thus, error reporting and recovery is an important concern under
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* these circumstances. Sometimes, due to programming errors, invoking a playback
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* control operation in an invalid state may also occur. Under all these
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* error conditions, the internal player engine invokes a user supplied
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* OnErrorListener.onError() method if an OnErrorListener has been
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* registered beforehand via
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* {@link #setOnErrorListener(android.media.MediaPlayer.OnErrorListener)}.
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* <ul>
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* <li>It is important to note that once an error occurs, the
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* MediaPlayer object enters the <em>Error</em> state (except as noted
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* above), even if an error listener has not been registered by the application.</li>
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* <li>In order to reuse a MediaPlayer object that is in the <em>
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* Error</em> state and recover from the error,
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* {@link #reset()} can be called to restore the object to its <em>Idle</em>
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* state.</li>
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* <li>It is good programming practice to have your application
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* register a OnErrorListener to look out for error notifications from
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* the internal player engine.</li>
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* <li>IlleglStateException is
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* thrown to prevent programming errors such as calling {@link #prepare()},
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* {@link #prepareAsync()}, or one of the overloaded <code>setDataSource
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* </code> methods in an invalid state. </li>
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* </ul>
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* </li>
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* <li>Calling
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* {@link #setDataSource(FileDescriptor)}, or
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* {@link #setDataSource(String)}, or
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* {@link #setDataSource(Context, Uri)}, or
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* {@link #setDataSource(FileDescriptor, long, long)} transfers a
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* MediaPlayer object in the <em>Idle</em> state to the
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* <em>Initialized</em> state.
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* <ul>
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* <li>An IllegalStateException is thrown if
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* setDataSource() is called in any other state.</li>
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* <li>It is good programming
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* practice to always look out for <code>IllegalArgumentException</code>
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* and <code>IOException</code> that may be thrown from the overloaded
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* <code>setDataSource</code> methods.</li>
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* </ul>
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* </li>
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* <li>A MediaPlayer object must first enter the <em>Prepared</em> state
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* before playback can be started.
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* <ul>
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* <li>There are two ways (synchronous vs.
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* asynchronous) that the <em>Prepared</em> state can be reached:
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* either a call to {@link #prepare()} (synchronous) which
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* transfers the object to the <em>Prepared</em> state once the method call
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* returns, or a call to {@link #prepareAsync()} (asynchronous) which
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* first transfers the object to the <em>Preparing</em> state after the
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* call returns (which occurs almost right way) while the internal
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* player engine continues working on the rest of preparation work
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* until the preparation work completes. When the preparation completes or when {@link #prepare()} call returns,
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* the internal player engine then calls a user supplied callback method,
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* onPrepared() of the OnPreparedListener interface, if an
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* OnPreparedListener is registered beforehand via {@link
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* #setOnPreparedListener(android.media.MediaPlayer.OnPreparedListener)}.</li>
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* <li>It is important to note that
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* the <em>Preparing</em> state is a transient state, and the behavior
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* of calling any method with side effect while a MediaPlayer object is
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* in the <em>Preparing</em> state is undefined.</li>
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* <li>An IllegalStateException is
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* thrown if {@link #prepare()} or {@link #prepareAsync()} is called in
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* any other state.</li>
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* <li>While in the <em>Prepared</em> state, properties
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* such as audio/sound volume, screenOnWhilePlaying, looping can be
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* adjusted by invoking the corresponding set methods.</li>
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* </ul>
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* </li>
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* <li>To start the playback, {@link #start()} must be called. After
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* {@link #start()} returns successfully, the MediaPlayer object is in the
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* <em>Started</em> state. {@link #isPlaying()} can be called to test
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* whether the MediaPlayer object is in the <em>Started</em> state.
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* <ul>
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* <li>While in the <em>Started</em> state, the internal player engine calls
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* a user supplied OnBufferingUpdateListener.onBufferingUpdate() callback
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* method if a OnBufferingUpdateListener has been registered beforehand
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* via {@link #setOnBufferingUpdateListener(OnBufferingUpdateListener)}.
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* This callback allows applications to keep track of the buffering status
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* while streaming audio/video.</li>
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* <li>Calling {@link #start()} has not effect
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* on a MediaPlayer object that is already in the <em>Started</em> state.</li>
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* </ul>
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* </li>
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* <li>Playback can be paused and stopped, and the current playback position
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* can be adjusted. Playback can be paused via {@link #pause()}. When the call to
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* {@link #pause()} returns, the MediaPlayer object enters the
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* <em>Paused</em> state. Note that the transition from the <em>Started</em>
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* state to the <em>Paused</em> state and vice versa happens
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* asynchronously in the player engine. It may take some time before
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* the state is updated in calls to {@link #isPlaying()}, and it can be
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* a number of seconds in the case of streamed content.
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* <ul>
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* <li>Calling {@link #start()} to resume playback for a paused
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* MediaPlayer object, and the resumed playback
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* position is the same as where it was paused. When the call to
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* {@link #start()} returns, the paused MediaPlayer object goes back to
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* the <em>Started</em> state.</li>
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* <li>Calling {@link #pause()} has no effect on
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* a MediaPlayer object that is already in the <em>Paused</em> state.</li>
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* </ul>
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* </li>
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* <li>Calling {@link #stop()} stops playback and causes a
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* MediaPlayer in the <em>Started</em>, <em>Paused</em>, <em>Prepared
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* </em> or <em>PlaybackCompleted</em> state to enter the
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* <em>Stopped</em> state.
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* <ul>
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* <li>Once in the <em>Stopped</em> state, playback cannot be started
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* until {@link #prepare()} or {@link #prepareAsync()} are called to set
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* the MediaPlayer object to the <em>Prepared</em> state again.</li>
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* <li>Calling {@link #stop()} has no effect on a MediaPlayer
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* object that is already in the <em>Stopped</em> state.</li>
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* </ul>
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* </li>
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* <li>The playback position can be adjusted with a call to
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* {@link #seekTo(int)}.
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* <ul>
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* <li>Although the asynchronuous {@link #seekTo(int)}
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* call returns right way, the actual seek operation may take a while to
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* finish, especially for audio/video being streamed. When the actual
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* seek operation completes, the internal player engine calls a user
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* supplied OnSeekComplete.onSeekComplete() if an OnSeekCompleteListener
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* has been registered beforehand via
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* {@link #setOnSeekCompleteListener(OnSeekCompleteListener)}.</li>
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* <li>Please
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* note that {@link #seekTo(int)} can also be called in the other states,
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* such as <em>Prepared</em>, <em>Paused</em> and <em>PlaybackCompleted
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* </em> state.</li>
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* <li>Furthermore, the actual current playback position
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* can be retrieved with a call to {@link #getCurrentPosition()}, which
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* is helpful for applications such as a Music player that need to keep
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* track of the playback progress.</li>
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* </ul>
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* </li>
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* <li>When the playback reaches the end of stream, the playback completes.
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* <ul>
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* <li>If the looping mode was being set to <var>true</var>with
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* {@link #setLooping(boolean)}, the MediaPlayer object shall remain in
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* the <em>Started</em> state.</li>
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* <li>If the looping mode was set to <var>false
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* </var>, the player engine calls a user supplied callback method,
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* OnCompletion.onCompletion(), if a OnCompletionListener is registered
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* beforehand via {@link #setOnCompletionListener(OnCompletionListener)}.
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* The invoke of the callback signals that the object is now in the <em>
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* PlaybackCompleted</em> state.</li>
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* <li>While in the <em>PlaybackCompleted</em>
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* state, calling {@link #start()} can restart the playback from the
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* beginning of the audio/video source.</li>
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* </ul>
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*
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*
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* <a name="Valid_and_Invalid_States"></a>
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* <h3>Valid and invalid states</h3>
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*
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* <table border="0" cellspacing="0" cellpadding="0">
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* <tr><td>Method Name </p></td>
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* <td>Valid Sates </p></td>
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* <td>Invalid States </p></td>
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* <td>Comments </p></td></tr>
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* <tr><td>getCurrentPosition </p></td>
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* <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
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* PlaybackCompleted} </p></td>
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* <td>{Error}</p></td>
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* <td>Successful invoke of this method in a valid state does not change the
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* state. Calling this method in an invalid state transfers the object
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* to the <em>Error</em> state. </p></td></tr>
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* <tr><td>getDuration </p></td>
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* <td>{Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
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* <td>{Idle, Initialized, Error} </p></td>
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* <td>Successful invoke of this method in a valid state does not change the
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* state. Calling this method in an invalid state transfers the object
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* to the <em>Error</em> state. </p></td></tr>
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* <tr><td>getVideoHeight </p></td>
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* <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
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* PlaybackCompleted}</p></td>
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* <td>{Error}</p></td>
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* <td>Successful invoke of this method in a valid state does not change the
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* state. Calling this method in an invalid state transfers the object
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* to the <em>Error</em> state. </p></td></tr>
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* <tr><td>getVideoWidth </p></td>
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* <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
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* PlaybackCompleted}</p></td>
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* <td>{Error}</p></td>
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* <td>Successful invoke of this method in a valid state does not change
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* the state. Calling this method in an invalid state transfers the
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* object to the <em>Error</em> state. </p></td></tr>
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* <tr><td>isPlaying </p></td>
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* <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
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* PlaybackCompleted}</p></td>
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* <td>{Error}</p></td>
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* <td>Successful invoke of this method in a valid state does not change
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* the state. Calling this method in an invalid state transfers the
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* object to the <em>Error</em> state. </p></td></tr>
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* <tr><td>pause </p></td>
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* <td>{Started, Paused}</p></td>
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* <td>{Idle, Initialized, Prepared, Stopped, PlaybackCompleted, Error}</p></td>
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* <td>Successful invoke of this method in a valid state transfers the
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* object to the <em>Paused</em> state. Calling this method in an
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* invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
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* <tr><td>prepare </p></td>
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* <td>{Initialized, Stopped} </p></td>
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* <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
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* <td>Successful invoke of this method in a valid state transfers the
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* object to the <em>Prepared</em> state. Calling this method in an
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* invalid state throws an IllegalStateException.</p></td></tr>
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* <tr><td>prepareAsync </p></td>
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* <td>{Initialized, Stopped} </p></td>
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* <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
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* <td>Successful invoke of this method in a valid state transfers the
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* object to the <em>Preparing</em> state. Calling this method in an
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* invalid state throws an IllegalStateException.</p></td></tr>
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* <tr><td>release </p></td>
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* <td>any </p></td>
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* <td>{} </p></td>
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* <td>After {@link #release()}, the object is no longer available. </p></td></tr>
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* <tr><td>reset </p></td>
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* <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
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* PlaybackCompleted, Error}</p></td>
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* <td>{}</p></td>
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* <td>After {@link #reset()}, the object is like being just created.</p></td></tr>
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* <tr><td>seekTo </p></td>
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* <td>{Prepared, Started, Paused, PlaybackCompleted} </p></td>
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* <td>{Idle, Initialized, Stopped, Error}</p></td>
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* <td>Successful invoke of this method in a valid state does not change
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* the state. Calling this method in an invalid state transfers the
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* object to the <em>Error</em> state. </p></td></tr>
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* <tr><td>setAudioStreamType </p></td>
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* <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
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* PlaybackCompleted}</p></td>
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* <td>{Error}</p></td>
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* <td>Successful invoke of this method does not change the state.</p></td></tr>
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* <tr><td>setDataSource </p></td>
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* <td>{Idle} </p></td>
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* <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
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* Error} </p></td>
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* <td>Successful invoke of this method in a valid state transfers the
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* object to the <em>Initialized</em> state. Calling this method in an
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* invalid state throws an IllegalStateException.</p></td></tr>
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* <tr><td>setDisplay </p></td>
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* <td>any </p></td>
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* <td>{} </p></td>
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* <td>This method can be called in any state and calling it does not change
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* the object state. </p></td></tr>
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* <tr><td>setLooping </p></td>
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* <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
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* PlaybackCompleted}</p></td>
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* <td>{Error}</p></td>
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* <td>Successful invoke of this method in a valid state does not change
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* the state. Calling this method in an
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* invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
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* <tr><td>isLooping </p></td>
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* <td>any </p></td>
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* <td>{} </p></td>
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* <td>This method can be called in any state and calling it does not change
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* the object state. </p></td></tr>
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* <tr><td>setOnBufferingUpdateListener </p></td>
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* <td>any </p></td>
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* <td>{} </p></td>
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* <td>This method can be called in any state and calling it does not change
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* the object state. </p></td></tr>
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* <tr><td>setOnCompletionListener </p></td>
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* <td>any </p></td>
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* <td>{} </p></td>
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* <td>This method can be called in any state and calling it does not change
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* the object state. </p></td></tr>
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* <tr><td>setOnErrorListener </p></td>
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* <td>any </p></td>
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* <td>{} </p></td>
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* <td>This method can be called in any state and calling it does not change
|
|
* the object state. </p></td></tr>
|
|
* <tr><td>setOnPreparedListener </p></td>
|
|
* <td>any </p></td>
|
|
* <td>{} </p></td>
|
|
* <td>This method can be called in any state and calling it does not change
|
|
* the object state. </p></td></tr>
|
|
* <tr><td>setOnSeekCompleteListener </p></td>
|
|
* <td>any </p></td>
|
|
* <td>{} </p></td>
|
|
* <td>This method can be called in any state and calling it does not change
|
|
* the object state. </p></td></tr>
|
|
* <tr><td>setScreenOnWhilePlaying</></td>
|
|
* <td>any </p></td>
|
|
* <td>{} </p></td>
|
|
* <td>This method can be called in any state and calling it does not change
|
|
* the object state. </p></td></tr>
|
|
* <tr><td>setVolume </p></td>
|
|
* <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
|
|
* PlaybackCompleted}</p></td>
|
|
* <td>{Error}</p></td>
|
|
* <td>Successful invoke of this method does not change the state.
|
|
* <tr><td>setWakeMode </p></td>
|
|
* <td>any </p></td>
|
|
* <td>{} </p></td>
|
|
* <td>This method can be called in any state and calling it does not change
|
|
* the object state.</p></td></tr>
|
|
* <tr><td>start </p></td>
|
|
* <td>{Prepared, Started, Paused, PlaybackCompleted}</p></td>
|
|
* <td>{Idle, Initialized, Stopped, Error}</p></td>
|
|
* <td>Successful invoke of this method in a valid state transfers the
|
|
* object to the <em>Started</em> state. Calling this method in an
|
|
* invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
|
|
* <tr><td>stop </p></td>
|
|
* <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
|
|
* <td>{Idle, Initialized, Error}</p></td>
|
|
* <td>Successful invoke of this method in a valid state transfers the
|
|
* object to the <em>Stopped</em> state. Calling this method in an
|
|
* invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
|
|
* </table>
|
|
*
|
|
* <a name="Permissions"></a>
|
|
* <h3>Permissions</h3>
|
|
* <p>One may need to declare a corresponding WAKE_LOCK permission {@link
|
|
* android.R.styleable#AndroidManifestUsesPermission <uses-permission>}
|
|
* element.
|
|
*
|
|
*/
|
|
public class MediaPlayer
|
|
{
|
|
/**
|
|
Constant to retrieve only the new metadata since the last
|
|
call.
|
|
// FIXME: unhide.
|
|
// FIXME: add link to getMetadata(boolean, boolean)
|
|
{@hide}
|
|
*/
|
|
public static final boolean METADATA_UPDATE_ONLY = true;
|
|
|
|
/**
|
|
Constant to retrieve all the metadata.
|
|
// FIXME: unhide.
|
|
// FIXME: add link to getMetadata(boolean, boolean)
|
|
{@hide}
|
|
*/
|
|
public static final boolean METADATA_ALL = false;
|
|
|
|
/**
|
|
Constant to enable the metadata filter during retrieval.
|
|
// FIXME: unhide.
|
|
// FIXME: add link to getMetadata(boolean, boolean)
|
|
{@hide}
|
|
*/
|
|
public static final boolean APPLY_METADATA_FILTER = true;
|
|
|
|
/**
|
|
Constant to disable the metadata filter during retrieval.
|
|
// FIXME: unhide.
|
|
// FIXME: add link to getMetadata(boolean, boolean)
|
|
{@hide}
|
|
*/
|
|
public static final boolean BYPASS_METADATA_FILTER = false;
|
|
|
|
static {
|
|
System.loadLibrary("media_jni");
|
|
native_init();
|
|
}
|
|
|
|
private final static String TAG = "MediaPlayer";
|
|
// Name of the remote interface for the media player. Must be kept
|
|
// in sync with the 2nd parameter of the IMPLEMENT_META_INTERFACE
|
|
// macro invocation in IMediaPlayer.cpp
|
|
private final static String IMEDIA_PLAYER = "android.media.IMediaPlayer";
|
|
|
|
private int mNativeContext; // accessed by native methods
|
|
private int mListenerContext; // accessed by native methods
|
|
private Surface mSurface; // accessed by native methods
|
|
private SurfaceHolder mSurfaceHolder;
|
|
private EventHandler mEventHandler;
|
|
private PowerManager.WakeLock mWakeLock = null;
|
|
private boolean mScreenOnWhilePlaying;
|
|
private boolean mStayAwake;
|
|
|
|
/**
|
|
* Default constructor. Consider using one of the create() methods for
|
|
* synchronously instantiating a MediaPlayer from a Uri or resource.
|
|
* <p>When done with the MediaPlayer, you should call {@link #release()},
|
|
* to free the resources. If not released, too many MediaPlayer instances may
|
|
* result in an exception.</p>
|
|
*/
|
|
public MediaPlayer() {
|
|
|
|
Looper looper;
|
|
if ((looper = Looper.myLooper()) != null) {
|
|
mEventHandler = new EventHandler(this, looper);
|
|
} else if ((looper = Looper.getMainLooper()) != null) {
|
|
mEventHandler = new EventHandler(this, looper);
|
|
} else {
|
|
mEventHandler = null;
|
|
}
|
|
|
|
/* Native setup requires a weak reference to our object.
|
|
* It's easier to create it here than in C++.
|
|
*/
|
|
native_setup(new WeakReference<MediaPlayer>(this));
|
|
}
|
|
|
|
/*
|
|
* Update the MediaPlayer ISurface. Call after updating mSurface.
|
|
*/
|
|
private native void _setVideoSurface();
|
|
|
|
/**
|
|
* Create a request parcel which can be routed to the native media
|
|
* player using {@link #invoke(Parcel, Parcel)}. The Parcel
|
|
* returned has the proper InterfaceToken set. The caller should
|
|
* not overwrite that token, i.e it can only append data to the
|
|
* Parcel.
|
|
*
|
|
* @return A parcel suitable to hold a request for the native
|
|
* player.
|
|
*/
|
|
public Parcel newRequest() {
|
|
Parcel parcel = Parcel.obtain();
|
|
parcel.writeInterfaceToken(IMEDIA_PLAYER);
|
|
return parcel;
|
|
}
|
|
|
|
/**
|
|
* Invoke a generic method on the native player using opaque
|
|
* parcels for the request and reply. Both payloads' format is a
|
|
* convention between the java caller and the native player.
|
|
* Must be called after setDataSource to make sure a native player
|
|
* exists.
|
|
*
|
|
* @param request Parcel with the data for the extension. The
|
|
* caller must use {@link #newRequest()} to get one.
|
|
*
|
|
* @param reply Output parcel with the data returned by the
|
|
* native player.
|
|
*
|
|
* @return The status code see utils/Errors.h
|
|
*/
|
|
public int invoke(Parcel request, Parcel reply) {
|
|
int retcode = native_invoke(request, reply);
|
|
reply.setDataPosition(0);
|
|
return retcode;
|
|
}
|
|
|
|
/**
|
|
* Sets the SurfaceHolder to use for displaying the video portion of the media.
|
|
* This call is optional. Not calling it when playing back a video will
|
|
* result in only the audio track being played.
|
|
*
|
|
* @param sh the SurfaceHolder to use for video display
|
|
*/
|
|
public void setDisplay(SurfaceHolder sh) {
|
|
mSurfaceHolder = sh;
|
|
if (sh != null) {
|
|
mSurface = sh.getSurface();
|
|
} else {
|
|
mSurface = null;
|
|
}
|
|
_setVideoSurface();
|
|
updateSurfaceScreenOn();
|
|
}
|
|
|
|
/**
|
|
* Convenience method to create a MediaPlayer for a given Uri.
|
|
* On success, {@link #prepare()} will already have been called and must not be called again.
|
|
* <p>When done with the MediaPlayer, you should call {@link #release()},
|
|
* to free the resources. If not released, too many MediaPlayer instances will
|
|
* result in an exception.</p>
|
|
*
|
|
* @param context the Context to use
|
|
* @param uri the Uri from which to get the datasource
|
|
* @return a MediaPlayer object, or null if creation failed
|
|
*/
|
|
public static MediaPlayer create(Context context, Uri uri) {
|
|
return create (context, uri, null);
|
|
}
|
|
|
|
/**
|
|
* Convenience method to create a MediaPlayer for a given Uri.
|
|
* On success, {@link #prepare()} will already have been called and must not be called again.
|
|
* <p>When done with the MediaPlayer, you should call {@link #release()},
|
|
* to free the resources. If not released, too many MediaPlayer instances will
|
|
* result in an exception.</p>
|
|
*
|
|
* @param context the Context to use
|
|
* @param uri the Uri from which to get the datasource
|
|
* @param holder the SurfaceHolder to use for displaying the video
|
|
* @return a MediaPlayer object, or null if creation failed
|
|
*/
|
|
public static MediaPlayer create(Context context, Uri uri, SurfaceHolder holder) {
|
|
|
|
try {
|
|
MediaPlayer mp = new MediaPlayer();
|
|
mp.setDataSource(context, uri);
|
|
if (holder != null) {
|
|
mp.setDisplay(holder);
|
|
}
|
|
mp.prepare();
|
|
return mp;
|
|
} catch (IOException ex) {
|
|
Log.d(TAG, "create failed:", ex);
|
|
// fall through
|
|
} catch (IllegalArgumentException ex) {
|
|
Log.d(TAG, "create failed:", ex);
|
|
// fall through
|
|
} catch (SecurityException ex) {
|
|
Log.d(TAG, "create failed:", ex);
|
|
// fall through
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Convenience method to create a MediaPlayer for a given resource id.
|
|
* On success, {@link #prepare()} will already have been called and must not be called again.
|
|
* <p>When done with the MediaPlayer, you should call {@link #release()},
|
|
* to free the resources. If not released, too many MediaPlayer instances will
|
|
* result in an exception.</p>
|
|
*
|
|
* @param context the Context to use
|
|
* @param resid the raw resource id (<var>R.raw.<something></var>) for
|
|
* the resource to use as the datasource
|
|
* @return a MediaPlayer object, or null if creation failed
|
|
*/
|
|
public static MediaPlayer create(Context context, int resid) {
|
|
try {
|
|
AssetFileDescriptor afd = context.getResources().openRawResourceFd(resid);
|
|
if (afd == null) return null;
|
|
|
|
MediaPlayer mp = new MediaPlayer();
|
|
mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
|
|
afd.close();
|
|
mp.prepare();
|
|
return mp;
|
|
} catch (IOException ex) {
|
|
Log.d(TAG, "create failed:", ex);
|
|
// fall through
|
|
} catch (IllegalArgumentException ex) {
|
|
Log.d(TAG, "create failed:", ex);
|
|
// fall through
|
|
} catch (SecurityException ex) {
|
|
Log.d(TAG, "create failed:", ex);
|
|
// fall through
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Sets the data source as a content Uri.
|
|
*
|
|
* @param context the Context to use when resolving the Uri
|
|
* @param uri the Content URI of the data you want to play
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public void setDataSource(Context context, Uri uri)
|
|
throws IOException, IllegalArgumentException, SecurityException, IllegalStateException {
|
|
|
|
String scheme = uri.getScheme();
|
|
if(scheme == null || scheme.equals("file")) {
|
|
setDataSource(uri.getPath());
|
|
return;
|
|
}
|
|
|
|
AssetFileDescriptor fd = null;
|
|
try {
|
|
ContentResolver resolver = context.getContentResolver();
|
|
fd = resolver.openAssetFileDescriptor(uri, "r");
|
|
if (fd == null) {
|
|
return;
|
|
}
|
|
// Note: using getDeclaredLength so that our behavior is the same
|
|
// as previous versions when the content provider is returning
|
|
// a full file.
|
|
if (fd.getDeclaredLength() < 0) {
|
|
setDataSource(fd.getFileDescriptor());
|
|
} else {
|
|
setDataSource(fd.getFileDescriptor(), fd.getStartOffset(), fd.getDeclaredLength());
|
|
}
|
|
return;
|
|
} catch (SecurityException ex) {
|
|
} catch (IOException ex) {
|
|
} finally {
|
|
if (fd != null) {
|
|
fd.close();
|
|
}
|
|
}
|
|
Log.d(TAG, "Couldn't open file on client side, trying server side");
|
|
setDataSource(uri.toString());
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Sets the data source (file-path or http/rtsp URL) to use.
|
|
*
|
|
* @param path the path of the file, or the http/rtsp URL of the stream you want to play
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public native void setDataSource(String path) throws IOException, IllegalArgumentException, IllegalStateException;
|
|
|
|
/**
|
|
* Sets the data source (FileDescriptor) to use. It is the caller's responsibility
|
|
* to close the file descriptor. It is safe to do so as soon as this call returns.
|
|
*
|
|
* @param fd the FileDescriptor for the file you want to play
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public void setDataSource(FileDescriptor fd)
|
|
throws IOException, IllegalArgumentException, IllegalStateException {
|
|
// intentionally less than LONG_MAX
|
|
setDataSource(fd, 0, 0x7ffffffffffffffL);
|
|
}
|
|
|
|
/**
|
|
* Sets the data source (FileDescriptor) to use. It is the caller's responsibility
|
|
* to close the file descriptor. It is safe to do so as soon as this call returns.
|
|
*
|
|
* @param fd the FileDescriptor for the file you want to play
|
|
* @param offset the offset into the file where the data to be played starts, in bytes
|
|
* @param length the length in bytes of the data to be played
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public native void setDataSource(FileDescriptor fd, long offset, long length)
|
|
throws IOException, IllegalArgumentException, IllegalStateException;
|
|
|
|
/**
|
|
* Prepares the player for playback, synchronously.
|
|
*
|
|
* After setting the datasource and the display surface, you need to either
|
|
* call prepare() or prepareAsync(). For files, it is OK to call prepare(),
|
|
* which blocks until MediaPlayer is ready for playback.
|
|
*
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public native void prepare() throws IOException, IllegalStateException;
|
|
|
|
/**
|
|
* Prepares the player for playback, asynchronously.
|
|
*
|
|
* After setting the datasource and the display surface, you need to either
|
|
* call prepare() or prepareAsync(). For streams, you should call prepareAsync(),
|
|
* which returns immediately, rather than blocking until enough data has been
|
|
* buffered.
|
|
*
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public native void prepareAsync() throws IllegalStateException;
|
|
|
|
/**
|
|
* Starts or resumes playback. If playback had previously been paused,
|
|
* playback will continue from where it was paused. If playback had
|
|
* been stopped, or never started before, playback will start at the
|
|
* beginning.
|
|
*
|
|
* @throws IllegalStateException if it is called in an invalid state
|
|
*/
|
|
public void start() throws IllegalStateException {
|
|
stayAwake(true);
|
|
_start();
|
|
}
|
|
|
|
private native void _start() throws IllegalStateException;
|
|
|
|
/**
|
|
* Stops playback after playback has been stopped or paused.
|
|
*
|
|
* @throws IllegalStateException if the internal player engine has not been
|
|
* initialized.
|
|
*/
|
|
public void stop() throws IllegalStateException {
|
|
stayAwake(false);
|
|
_stop();
|
|
}
|
|
|
|
private native void _stop() throws IllegalStateException;
|
|
|
|
/**
|
|
* Pauses playback. Call start() to resume.
|
|
*
|
|
* @throws IllegalStateException if the internal player engine has not been
|
|
* initialized.
|
|
*/
|
|
public void pause() throws IllegalStateException {
|
|
stayAwake(false);
|
|
_pause();
|
|
}
|
|
|
|
private native void _pause() throws IllegalStateException;
|
|
|
|
/**
|
|
* Set the low-level power management behavior for this MediaPlayer. This
|
|
* can be used when the MediaPlayer is not playing through a SurfaceHolder
|
|
* set with {@link #setDisplay(SurfaceHolder)} and thus can use the
|
|
* high-level {@link #setScreenOnWhilePlaying(boolean)} feature.
|
|
*
|
|
* <p>This function has the MediaPlayer access the low-level power manager
|
|
* service to control the device's power usage while playing is occurring.
|
|
* The parameter is a combination of {@link android.os.PowerManager} wake flags.
|
|
* Use of this method requires {@link android.Manifest.permission#WAKE_LOCK}
|
|
* permission.
|
|
* By default, no attempt is made to keep the device awake during playback.
|
|
*
|
|
* @param context the Context to use
|
|
* @param mode the power/wake mode to set
|
|
* @see android.os.PowerManager
|
|
*/
|
|
public void setWakeMode(Context context, int mode) {
|
|
boolean washeld = false;
|
|
if (mWakeLock != null) {
|
|
if (mWakeLock.isHeld()) {
|
|
washeld = true;
|
|
mWakeLock.release();
|
|
}
|
|
mWakeLock = null;
|
|
}
|
|
|
|
PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
|
|
mWakeLock = pm.newWakeLock(mode|PowerManager.ON_AFTER_RELEASE, MediaPlayer.class.getName());
|
|
mWakeLock.setReferenceCounted(false);
|
|
if (washeld) {
|
|
mWakeLock.acquire();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Control whether we should use the attached SurfaceHolder to keep the
|
|
* screen on while video playback is occurring. This is the preferred
|
|
* method over {@link #setWakeMode} where possible, since it doesn't
|
|
* require that the application have permission for low-level wake lock
|
|
* access.
|
|
*
|
|
* @param screenOn Supply true to keep the screen on, false to allow it
|
|
* to turn off.
|
|
*/
|
|
public void setScreenOnWhilePlaying(boolean screenOn) {
|
|
if (mScreenOnWhilePlaying != screenOn) {
|
|
mScreenOnWhilePlaying = screenOn;
|
|
updateSurfaceScreenOn();
|
|
}
|
|
}
|
|
|
|
private void stayAwake(boolean awake) {
|
|
if (mWakeLock != null) {
|
|
if (awake && !mWakeLock.isHeld()) {
|
|
mWakeLock.acquire();
|
|
} else if (!awake && mWakeLock.isHeld()) {
|
|
mWakeLock.release();
|
|
}
|
|
}
|
|
mStayAwake = awake;
|
|
updateSurfaceScreenOn();
|
|
}
|
|
|
|
private void updateSurfaceScreenOn() {
|
|
if (mSurfaceHolder != null) {
|
|
mSurfaceHolder.setKeepScreenOn(mScreenOnWhilePlaying && mStayAwake);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the width of the video.
|
|
*
|
|
* @return the width of the video, or 0 if there is no video,
|
|
* no display surface was set, or prepare()/prepareAsync()
|
|
* have not completed yet
|
|
*/
|
|
public native int getVideoWidth();
|
|
|
|
/**
|
|
* Returns the height of the video.
|
|
*
|
|
* @return the height of the video, or 0 if there is no video,
|
|
* no display surface was set, or prepare()/prepareAsync()
|
|
* have not completed yet
|
|
*/
|
|
public native int getVideoHeight();
|
|
|
|
/**
|
|
* Checks whether the MediaPlayer is playing.
|
|
*
|
|
* @return true if currently playing, false otherwise
|
|
*/
|
|
public native boolean isPlaying();
|
|
|
|
/**
|
|
* Seeks to specified time position.
|
|
*
|
|
* @param msec the offset in milliseconds from the start to seek to
|
|
* @throws IllegalStateException if the internal player engine has not been
|
|
* initialized
|
|
*/
|
|
public native void seekTo(int msec) throws IllegalStateException;
|
|
|
|
/**
|
|
* Gets the current playback position.
|
|
*
|
|
* @return the current position in milliseconds
|
|
*/
|
|
public native int getCurrentPosition();
|
|
|
|
/**
|
|
* Gets the duration of the file.
|
|
*
|
|
* @return the duration in milliseconds
|
|
*/
|
|
public native int getDuration();
|
|
|
|
/**
|
|
* Gets the media metadata.
|
|
*
|
|
* @param update_only controls whether the full set of available
|
|
* metadata is returned or just the set that changed since the
|
|
* last call. See {@see #METADATA_UPDATE_ONLY} and {@see
|
|
* #METADATA_ALL}.
|
|
*
|
|
* @param apply_filter if true only metadata that matches the
|
|
* filter is returned. See {@see #APPLY_METADATA_FILTER} and {@see
|
|
* #BYPASS_METADATA_FILTER}.
|
|
*
|
|
* @return The metadata, possibly empty. null if an error occured.
|
|
// FIXME: unhide.
|
|
* {@hide}
|
|
*/
|
|
public Metadata getMetadata(final boolean update_only,
|
|
final boolean apply_filter) {
|
|
Parcel reply = Parcel.obtain();
|
|
Metadata data = new Metadata();
|
|
|
|
if (!native_getMetadata(update_only, apply_filter, reply)) {
|
|
reply.recycle();
|
|
return null;
|
|
}
|
|
|
|
// Metadata takes over the parcel, don't recycle it unless
|
|
// there is an error.
|
|
if (!data.parse(reply)) {
|
|
reply.recycle();
|
|
return null;
|
|
}
|
|
return data;
|
|
}
|
|
|
|
/**
|
|
* Set a filter for the metadata update notification and update
|
|
* retrieval. The caller provides 2 set of metadata keys, allowed
|
|
* and blocked. The blocked set always takes precedence over the
|
|
* allowed one.
|
|
* Metadata.MATCH_ALL and Metadata.MATCH_NONE are 2 sets available as
|
|
* shorthands to allow/block all or no metadata.
|
|
*
|
|
* By default, there is no filter set.
|
|
*
|
|
* @param allow Is the set of metadata the client is interested
|
|
* in receiving new notifications for.
|
|
* @param block Is the set of metadata the client is not interested
|
|
* in receiving new notifications for.
|
|
* @return The call status code.
|
|
*
|
|
// FIXME: unhide.
|
|
* {@hide}
|
|
*/
|
|
public int setMetadataFilter(Set<Integer> allow, Set<Integer> block) {
|
|
// Do our serialization manually instead of calling
|
|
// Parcel.writeArray since the sets are made of the same type
|
|
// we avoid paying the price of calling writeValue (used by
|
|
// writeArray) which burns an extra int per element to encode
|
|
// the type.
|
|
Parcel request = newRequest();
|
|
|
|
// The parcel starts already with an interface token. There
|
|
// are 2 filters. Each one starts with a 4bytes number to
|
|
// store the len followed by a number of int (4 bytes as well)
|
|
// representing the metadata type.
|
|
int capacity = request.dataSize() + 4 * (1 + allow.size() + 1 + block.size());
|
|
|
|
if (request.dataCapacity() < capacity) {
|
|
request.setDataCapacity(capacity);
|
|
}
|
|
|
|
request.writeInt(allow.size());
|
|
for(Integer t: allow) {
|
|
request.writeInt(t);
|
|
}
|
|
request.writeInt(block.size());
|
|
for(Integer t: block) {
|
|
request.writeInt(t);
|
|
}
|
|
return native_setMetadataFilter(request);
|
|
}
|
|
|
|
/**
|
|
* Releases resources associated with this MediaPlayer object.
|
|
* It is considered good practice to call this method when you're
|
|
* done using the MediaPlayer.
|
|
*/
|
|
public void release() {
|
|
stayAwake(false);
|
|
updateSurfaceScreenOn();
|
|
mOnPreparedListener = null;
|
|
mOnBufferingUpdateListener = null;
|
|
mOnCompletionListener = null;
|
|
mOnSeekCompleteListener = null;
|
|
mOnErrorListener = null;
|
|
mOnInfoListener = null;
|
|
mOnVideoSizeChangedListener = null;
|
|
_release();
|
|
}
|
|
|
|
private native void _release();
|
|
|
|
/**
|
|
* Resets the MediaPlayer to its uninitialized state. After calling
|
|
* this method, you will have to initialize it again by setting the
|
|
* data source and calling prepare().
|
|
*/
|
|
public void reset() {
|
|
stayAwake(false);
|
|
_reset();
|
|
// make sure none of the listeners get called anymore
|
|
mEventHandler.removeCallbacksAndMessages(null);
|
|
}
|
|
|
|
private native void _reset();
|
|
|
|
/**
|
|
* Sets the audio stream type for this MediaPlayer. See {@link AudioManager}
|
|
* for a list of stream types.
|
|
*
|
|
* @param streamtype the audio stream type
|
|
* @see android.media.AudioManager
|
|
*/
|
|
public native void setAudioStreamType(int streamtype);
|
|
|
|
/**
|
|
* Sets the player to be looping or non-looping.
|
|
*
|
|
* @param looping whether to loop or not
|
|
*/
|
|
public native void setLooping(boolean looping);
|
|
|
|
/**
|
|
* Checks whether the MediaPlayer is looping or non-looping.
|
|
*
|
|
* @return true if the MediaPlayer is currently looping, false otherwise
|
|
*/
|
|
public native boolean isLooping();
|
|
|
|
/**
|
|
* Sets the volume on this player.
|
|
* This API is recommended for balancing the output of audio streams
|
|
* within an application. Unless you are writing an application to
|
|
* control user settings, this API should be used in preference to
|
|
* {@link AudioManager#setStreamVolume(int, int, int)} which sets the volume of ALL streams of
|
|
* a particular type. Note that the passed volume values are raw scalars.
|
|
* UI controls should be scaled logarithmically.
|
|
*
|
|
* @param leftVolume left volume scalar
|
|
* @param rightVolume right volume scalar
|
|
*/
|
|
public native void setVolume(float leftVolume, float rightVolume);
|
|
|
|
/**
|
|
* Currently not implemented, returns null.
|
|
* @deprecated
|
|
* @hide
|
|
*/
|
|
public native Bitmap getFrameAt(int msec) throws IllegalStateException;
|
|
|
|
/**
|
|
* @param request Parcel destinated to the media player. The
|
|
* Interface token must be set to the IMediaPlayer
|
|
* one to be routed correctly through the system.
|
|
* @param reply[out] Parcel that will contain the reply.
|
|
* @return The status code.
|
|
*/
|
|
private native final int native_invoke(Parcel request, Parcel reply);
|
|
|
|
|
|
/**
|
|
* @param update_only If true fetch only the set of metadata that have
|
|
* changed since the last invocation of getMetadata.
|
|
* The set is built using the unfiltered
|
|
* notifications the native player sent to the
|
|
* MediaPlayerService during that period of
|
|
* time. If false, all the metadatas are considered.
|
|
* @param apply_filter If true, once the metadata set has been built based on
|
|
* the value update_only, the current filter is applied.
|
|
* @param reply[out] On return contains the serialized
|
|
* metadata. Valid only if the call was successful.
|
|
* @return The status code.
|
|
*/
|
|
private native final boolean native_getMetadata(boolean update_only,
|
|
boolean apply_filter,
|
|
Parcel reply);
|
|
|
|
/**
|
|
* @param request Parcel with the 2 serialized lists of allowed
|
|
* metadata types followed by the one to be
|
|
* dropped. Each list starts with an integer
|
|
* indicating the number of metadata type elements.
|
|
* @return The status code.
|
|
*/
|
|
private native final int native_setMetadataFilter(Parcel request);
|
|
|
|
private static native final void native_init();
|
|
private native final void native_setup(Object mediaplayer_this);
|
|
private native final void native_finalize();
|
|
|
|
@Override
|
|
protected void finalize() { native_finalize(); }
|
|
|
|
/* Do not change these values without updating their counterparts
|
|
* in include/media/mediaplayer.h!
|
|
*/
|
|
private static final int MEDIA_NOP = 0; // interface test message
|
|
private static final int MEDIA_PREPARED = 1;
|
|
private static final int MEDIA_PLAYBACK_COMPLETE = 2;
|
|
private static final int MEDIA_BUFFERING_UPDATE = 3;
|
|
private static final int MEDIA_SEEK_COMPLETE = 4;
|
|
private static final int MEDIA_SET_VIDEO_SIZE = 5;
|
|
private static final int MEDIA_ERROR = 100;
|
|
private static final int MEDIA_INFO = 200;
|
|
|
|
private class EventHandler extends Handler
|
|
{
|
|
private MediaPlayer mMediaPlayer;
|
|
|
|
public EventHandler(MediaPlayer mp, Looper looper) {
|
|
super(looper);
|
|
mMediaPlayer = mp;
|
|
}
|
|
|
|
@Override
|
|
public void handleMessage(Message msg) {
|
|
if (mMediaPlayer.mNativeContext == 0) {
|
|
Log.w(TAG, "mediaplayer went away with unhandled events");
|
|
return;
|
|
}
|
|
switch(msg.what) {
|
|
case MEDIA_PREPARED:
|
|
if (mOnPreparedListener != null)
|
|
mOnPreparedListener.onPrepared(mMediaPlayer);
|
|
return;
|
|
|
|
case MEDIA_PLAYBACK_COMPLETE:
|
|
if (mOnCompletionListener != null)
|
|
mOnCompletionListener.onCompletion(mMediaPlayer);
|
|
stayAwake(false);
|
|
return;
|
|
|
|
case MEDIA_BUFFERING_UPDATE:
|
|
if (mOnBufferingUpdateListener != null)
|
|
mOnBufferingUpdateListener.onBufferingUpdate(mMediaPlayer, msg.arg1);
|
|
return;
|
|
|
|
case MEDIA_SEEK_COMPLETE:
|
|
if (mOnSeekCompleteListener != null)
|
|
mOnSeekCompleteListener.onSeekComplete(mMediaPlayer);
|
|
return;
|
|
|
|
case MEDIA_SET_VIDEO_SIZE:
|
|
if (mOnVideoSizeChangedListener != null)
|
|
mOnVideoSizeChangedListener.onVideoSizeChanged(mMediaPlayer, msg.arg1, msg.arg2);
|
|
return;
|
|
|
|
case MEDIA_ERROR:
|
|
// For PV specific error values (msg.arg2) look in
|
|
// opencore/pvmi/pvmf/include/pvmf_return_codes.h
|
|
Log.e(TAG, "Error (" + msg.arg1 + "," + msg.arg2 + ")");
|
|
boolean error_was_handled = false;
|
|
if (mOnErrorListener != null) {
|
|
error_was_handled = mOnErrorListener.onError(mMediaPlayer, msg.arg1, msg.arg2);
|
|
}
|
|
if (mOnCompletionListener != null && ! error_was_handled) {
|
|
mOnCompletionListener.onCompletion(mMediaPlayer);
|
|
}
|
|
stayAwake(false);
|
|
return;
|
|
|
|
case MEDIA_INFO:
|
|
// For PV specific code values (msg.arg2) look in
|
|
// opencore/pvmi/pvmf/include/pvmf_return_codes.h
|
|
Log.i(TAG, "Info (" + msg.arg1 + "," + msg.arg2 + ")");
|
|
if (mOnInfoListener != null) {
|
|
mOnInfoListener.onInfo(mMediaPlayer, msg.arg1, msg.arg2);
|
|
}
|
|
// No real default action so far.
|
|
return;
|
|
|
|
case MEDIA_NOP: // interface test message - ignore
|
|
break;
|
|
|
|
default:
|
|
Log.e(TAG, "Unknown message type " + msg.what);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Called from native code when an interesting event happens. This method
|
|
* just uses the EventHandler system to post the event back to the main app thread.
|
|
* We use a weak reference to the original MediaPlayer object so that the native
|
|
* code is safe from the object disappearing from underneath it. (This is
|
|
* the cookie passed to native_setup().)
|
|
*/
|
|
private static void postEventFromNative(Object mediaplayer_ref,
|
|
int what, int arg1, int arg2, Object obj)
|
|
{
|
|
MediaPlayer mp = (MediaPlayer)((WeakReference)mediaplayer_ref).get();
|
|
if (mp == null) {
|
|
return;
|
|
}
|
|
|
|
if (mp.mEventHandler != null) {
|
|
Message m = mp.mEventHandler.obtainMessage(what, arg1, arg2, obj);
|
|
mp.mEventHandler.sendMessage(m);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Interface definition for a callback to be invoked when the media
|
|
* source is ready for playback.
|
|
*/
|
|
public interface OnPreparedListener
|
|
{
|
|
/**
|
|
* Called when the media file is ready for playback.
|
|
*
|
|
* @param mp the MediaPlayer that is ready for playback
|
|
*/
|
|
void onPrepared(MediaPlayer mp);
|
|
}
|
|
|
|
/**
|
|
* Register a callback to be invoked when the media source is ready
|
|
* for playback.
|
|
*
|
|
* @param listener the callback that will be run
|
|
*/
|
|
public void setOnPreparedListener(OnPreparedListener listener)
|
|
{
|
|
mOnPreparedListener = listener;
|
|
}
|
|
|
|
private OnPreparedListener mOnPreparedListener;
|
|
|
|
/**
|
|
* Interface definition for a callback to be invoked when playback of
|
|
* a media source has completed.
|
|
*/
|
|
public interface OnCompletionListener
|
|
{
|
|
/**
|
|
* Called when the end of a media source is reached during playback.
|
|
*
|
|
* @param mp the MediaPlayer that reached the end of the file
|
|
*/
|
|
void onCompletion(MediaPlayer mp);
|
|
}
|
|
|
|
/**
|
|
* Register a callback to be invoked when the end of a media source
|
|
* has been reached during playback.
|
|
*
|
|
* @param listener the callback that will be run
|
|
*/
|
|
public void setOnCompletionListener(OnCompletionListener listener)
|
|
{
|
|
mOnCompletionListener = listener;
|
|
}
|
|
|
|
private OnCompletionListener mOnCompletionListener;
|
|
|
|
/**
|
|
* Interface definition of a callback to be invoked indicating buffering
|
|
* status of a media resource being streamed over the network.
|
|
*/
|
|
public interface OnBufferingUpdateListener
|
|
{
|
|
/**
|
|
* Called to update status in buffering a media stream.
|
|
*
|
|
* @param mp the MediaPlayer the update pertains to
|
|
* @param percent the percentage (0-100) of the buffer
|
|
* that has been filled thus far
|
|
*/
|
|
void onBufferingUpdate(MediaPlayer mp, int percent);
|
|
}
|
|
|
|
/**
|
|
* Register a callback to be invoked when the status of a network
|
|
* stream's buffer has changed.
|
|
*
|
|
* @param listener the callback that will be run.
|
|
*/
|
|
public void setOnBufferingUpdateListener(OnBufferingUpdateListener listener)
|
|
{
|
|
mOnBufferingUpdateListener = listener;
|
|
}
|
|
|
|
private OnBufferingUpdateListener mOnBufferingUpdateListener;
|
|
|
|
/**
|
|
* Interface definition of a callback to be invoked indicating
|
|
* the completion of a seek operation.
|
|
*/
|
|
public interface OnSeekCompleteListener
|
|
{
|
|
/**
|
|
* Called to indicate the completion of a seek operation.
|
|
*
|
|
* @param mp the MediaPlayer that issued the seek operation
|
|
*/
|
|
public void onSeekComplete(MediaPlayer mp);
|
|
}
|
|
|
|
/**
|
|
* Register a callback to be invoked when a seek operation has been
|
|
* completed.
|
|
*
|
|
* @param listener the callback that will be run
|
|
*/
|
|
public void setOnSeekCompleteListener(OnSeekCompleteListener listener)
|
|
{
|
|
mOnSeekCompleteListener = listener;
|
|
}
|
|
|
|
private OnSeekCompleteListener mOnSeekCompleteListener;
|
|
|
|
/**
|
|
* Interface definition of a callback to be invoked when the
|
|
* video size is first known or updated
|
|
*/
|
|
public interface OnVideoSizeChangedListener
|
|
{
|
|
/**
|
|
* Called to indicate the video size
|
|
*
|
|
* @param mp the MediaPlayer associated with this callback
|
|
* @param width the width of the video
|
|
* @param height the height of the video
|
|
*/
|
|
public void onVideoSizeChanged(MediaPlayer mp, int width, int height);
|
|
}
|
|
|
|
/**
|
|
* Register a callback to be invoked when the video size is
|
|
* known or updated.
|
|
*
|
|
* @param listener the callback that will be run
|
|
*/
|
|
public void setOnVideoSizeChangedListener(OnVideoSizeChangedListener listener)
|
|
{
|
|
mOnVideoSizeChangedListener = listener;
|
|
}
|
|
|
|
private OnVideoSizeChangedListener mOnVideoSizeChangedListener;
|
|
|
|
/* Do not change these values without updating their counterparts
|
|
* in include/media/mediaplayer.h!
|
|
*/
|
|
/** Unspecified media player error.
|
|
* @see android.media.MediaPlayer.OnErrorListener
|
|
*/
|
|
public static final int MEDIA_ERROR_UNKNOWN = 1;
|
|
|
|
/** Media server died. In this case, the application must release the
|
|
* MediaPlayer object and instantiate a new one.
|
|
* @see android.media.MediaPlayer.OnErrorListener
|
|
*/
|
|
public static final int MEDIA_ERROR_SERVER_DIED = 100;
|
|
|
|
/** The video is streamed and its container is not valid for progressive
|
|
* playback i.e the video's index (e.g moov atom) is not at the start of the
|
|
* file.
|
|
* @see android.media.MediaPlayer.OnErrorListener
|
|
*/
|
|
public static final int MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200;
|
|
|
|
/**
|
|
* Interface definition of a callback to be invoked when there
|
|
* has been an error during an asynchronous operation (other errors
|
|
* will throw exceptions at method call time).
|
|
*/
|
|
public interface OnErrorListener
|
|
{
|
|
/**
|
|
* Called to indicate an error.
|
|
*
|
|
* @param mp the MediaPlayer the error pertains to
|
|
* @param what the type of error that has occurred:
|
|
* <ul>
|
|
* <li>{@link #MEDIA_ERROR_UNKNOWN}
|
|
* <li>{@link #MEDIA_ERROR_SERVER_DIED}
|
|
* </ul>
|
|
* @param extra an extra code, specific to the error. Typically
|
|
* implementation dependant.
|
|
* @return True if the method handled the error, false if it didn't.
|
|
* Returning false, or not having an OnErrorListener at all, will
|
|
* cause the OnCompletionListener to be called.
|
|
*/
|
|
boolean onError(MediaPlayer mp, int what, int extra);
|
|
}
|
|
|
|
/**
|
|
* Register a callback to be invoked when an error has happened
|
|
* during an asynchronous operation.
|
|
*
|
|
* @param listener the callback that will be run
|
|
*/
|
|
public void setOnErrorListener(OnErrorListener listener)
|
|
{
|
|
mOnErrorListener = listener;
|
|
}
|
|
|
|
private OnErrorListener mOnErrorListener;
|
|
|
|
|
|
/* Do not change these values without updating their counterparts
|
|
* in include/media/mediaplayer.h!
|
|
*/
|
|
/** Unspecified media player info.
|
|
* @see android.media.MediaPlayer.OnInfoListener
|
|
*/
|
|
public static final int MEDIA_INFO_UNKNOWN = 1;
|
|
|
|
/** The video is too complex for the decoder: it can't decode frames fast
|
|
* enough. Possibly only the audio plays fine at this stage.
|
|
* @see android.media.MediaPlayer.OnInfoListener
|
|
*/
|
|
public static final int MEDIA_INFO_VIDEO_TRACK_LAGGING = 700;
|
|
|
|
/** Bad interleaving means that a media has been improperly interleaved or
|
|
* not interleaved at all, e.g has all the video samples first then all the
|
|
* audio ones. Video is playing but a lot of disk seeks may be happening.
|
|
* @see android.media.MediaPlayer.OnInfoListener
|
|
*/
|
|
public static final int MEDIA_INFO_BAD_INTERLEAVING = 800;
|
|
|
|
/** The media cannot be seeked (e.g live stream)
|
|
* @see android.media.MediaPlayer.OnInfoListener
|
|
*/
|
|
public static final int MEDIA_INFO_NOT_SEEKABLE = 801;
|
|
|
|
/** A new set of metadata is available.
|
|
* @see android.media.MediaPlayer.OnInfoListener
|
|
*/
|
|
public static final int MEDIA_INFO_METADATA_UPDATE = 802;
|
|
|
|
/**
|
|
* Interface definition of a callback to be invoked to communicate some
|
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* info and/or warning about the media or its playback.
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*/
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public interface OnInfoListener
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{
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/**
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* Called to indicate an info or a warning.
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*
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* @param mp the MediaPlayer the info pertains to.
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* @param what the type of info or warning.
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* <ul>
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* <li>{@link #MEDIA_INFO_UNKNOWN}
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* <li>{@link #MEDIA_INFO_VIDEO_TRACK_LAGGING}
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* <li>{@link #MEDIA_INFO_BAD_INTERLEAVING}
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* <li>{@link #MEDIA_INFO_NOT_SEEKABLE}
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* <li>{@link #MEDIA_INFO_METADATA_UPDATE}
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* </ul>
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* @param extra an extra code, specific to the info. Typically
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* implementation dependant.
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* @return True if the method handled the info, false if it didn't.
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* Returning false, or not having an OnErrorListener at all, will
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* cause the info to be discarded.
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*/
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boolean onInfo(MediaPlayer mp, int what, int extra);
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}
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/**
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* Register a callback to be invoked when an info/warning is available.
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*
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* @param listener the callback that will be run
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*/
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public void setOnInfoListener(OnInfoListener listener)
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{
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mOnInfoListener = listener;
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}
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private OnInfoListener mOnInfoListener;
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}
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