Cross Reference: /frameworks/base/media/java/android/media/AudioTrack.java

Lines Matching defs:AudioTrack
28  * The AudioTrack class manages and plays a single audio resource for Java applications.
30  * achieved by "pushing" the data to the AudioTrack object using one of the
33  * <p>An AudioTrack instance can operate under two modes: static or streaming.<br>
34  * In Streaming mode, the application writes a continuous stream of data to the AudioTrack, using
51  * <p>Upon creation, an AudioTrack object initializes its associated audio buffer.
52  * The size of this buffer, specified during the construction, determines how long an AudioTrack
54  * For an AudioTrack using the static mode, this size is the maximum size of the sound that can
59  * AudioTrack is not final and thus permits subclasses, but such use is not recommended.
61 public class AudioTrack
76     /** indicates AudioTrack state is stopped */
78     /** indicates AudioTrack state is paused */
80     /** indicates AudioTrack state is playing */
96      * State of an AudioTrack that was not successfully initialized upon creation.
100      * State of an AudioTrack that is ready to be used.
104      * State of a successfully initialized AudioTrack that uses static data,
135     // to keep in sync with frameworks/av/include/media/AudioTrack.h
145     private final static String TAG = "android.media.AudioTrack";
152      * Indicates the state of the AudioTrack instance.
156      * Indicates the play state of the AudioTrack instance.
173      * Looper associated with the thread that creates the AudioTrack instance.
221      * Accessed by native methods: provides access to C++ AudioTrack object.
227      * the native AudioTrack object, but not stored in it).
257      *   for the successful creation of an AudioTrack instance in streaming mode. Using values
262     public AudioTrack(int streamType, int sampleRateInHz, int channelConfig, int audioFormat,
270      * Class constructor with audio session. Use this constructor when the AudioTrack must be
272      * associate audio effects to a particular instance of AudioTrack: if an audio session ID
275      * When an AudioTrack is created without specifying a session, it will create its own session
277      * If a non-zero session ID is provided, this AudioTrack will share effects attached to this
293      *   from for playback. If using the AudioTrack in streaming mode, you can write data into
294      *   this buffer in smaller chunks than this size. If using the AudioTrack in static mode,
297      *   for the successful creation of an AudioTrack instance in streaming mode. Using values
300      * @param sessionId Id of audio session the AudioTrack must be attached to
303     public AudioTrack(int streamType, int sampleRateInHz, int channelConfig, int audioFormat,
308         // remember which looper is associated with the AudioTrack instantiation
326         int initResult = native_setup(new WeakReference<AudioTrack>(this),
330             loge("Error code "+initResult+" when initializing AudioTrack.");
436      * @return false if the AudioTrack can't be used with such a mask
486      * Releases the native AudioTrack resources.
489         // even though native_release() stops the native AudioTrack, we need to stop
490         // AudioTrack subclasses too.
549      * Returns the type of audio stream this AudioTrack is configured for.
576      * Returns the state of the AudioTrack instance. This is useful after the
577      * AudioTrack instance has been created to check if it was initialized
588      * Returns the playback state of the AudioTrack instance.
607      *  @deprecated Only accessible by subclasses, which are not recommended for AudioTrack.
647      * to AudioTrack buffer size, AudioMixer (if any) and audio hardware driver.
665      * Returns the minimum buffer size required for the successful creation of an AudioTrack
669      * For example, if you intend to dynamically set the source sample rate of an AudioTrack
729      * @return the ID of the audio session this AudioTrack belongs to.
778      * Sets the listener the AudioTrack notifies when a previously set marker is reached or
780      * Notifications will be received in the same thread as the one in which the AudioTrack
789      * Sets the listener the AudioTrack notifies when a previously set marker is reached or
791      * Use this method to receive AudioTrack events in the Handler associated with another
792      * thread than the one in which you created the AudioTrack instance.
808      * Sets the specified left/right output volume values on the AudioTrack. Values are clamped
854      * {@link #AudioTrack(int, int, int, int, int, int)} constructor),
961      * in an AudioTrack subclass constructor to set a subclass-specific post-initialization state.
962      * However, subclasses of AudioTrack are no longer recommended, so this method is obsolete.
963      * @param state the state of the AudioTrack instance
964      * @deprecated Only accessible by subclasses, which are not recommended for AudioTrack.
976      * Starts playing an AudioTrack.
984             throw new IllegalStateException("play() called on uninitialized AudioTrack.");
1004             throw new IllegalStateException("stop() called on uninitialized AudioTrack.");
1024             throw new IllegalStateException("pause() called on uninitialized AudioTrack.");
1217      * an AudioTrack has reached a notification marker or has increased by a certain period.
1224         void onMarkerReached(AudioTrack track);
1230         void onPeriodicNotification(AudioTrack track);
1244         NativeEventHandlerDelegate(final AudioTrack track,
1252                 // no given handler, use the looper the AudioTrack was created in
1300         AudioTrack track = (AudioTrack)((WeakReference)audiotrack_ref).get();