MediaPlayer2: async commands return token (40f1b941) · Commits · e / os / android_frameworks_base

media/java/android/media/MediaPlayer2.java

+77 −48

Original line number	Diff line number	Diff line
		@@ -345,9 +345,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* playback will start at the beginning. If the source had not been
		* prepared, the player will prepare the source and play.
		*
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void play();
		public abstract Object play();

		/**
		* Prepares the player for playback, asynchronously.
		@@ -355,31 +356,35 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* After setting the datasource and the display surface, you need to
		* call prepare().
		*
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void prepare();
		public abstract Object prepare();

		/**
		* Pauses playback. Call play() to resume.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void pause();
		public abstract Object pause();

		/**
		* Tries to play next data source if applicable.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void skipToNext();
		public abstract Object skipToNext();

		/**
		* Moves the media to specified time position.
		* Same as {@link #seekTo(long, int)} with {@code mode = SEEK_PREVIOUS_SYNC}.
		*
		* @param msec the offset in milliseconds from the start to seek to
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public void seekTo(long msec) {
		seekTo(msec, SEEK_PREVIOUS_SYNC /* mode */);
		public Object seekTo(long msec) {
		return seekTo(msec, SEEK_PREVIOUS_SYNC /* mode */);
		}

		/**
		@@ -467,9 +472,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* You must call this method before {@link #prepare()} in order
		* for the audio attributes to become effective thereafter.
		* @param attributes a non-null set of audio attributes
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setAudioAttributes(@NonNull AudioAttributes attributes);
		public abstract Object setAudioAttributes(@NonNull AudioAttributes attributes);

		/**
		* Gets the audio attributes for this MediaPlayer2.
		@@ -481,32 +487,36 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* Sets the data source as described by a DataSourceDesc.
		*
		* @param dsd the descriptor of data source you want to play
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setDataSource(@NonNull DataSourceDesc dsd);
		public abstract Object setDataSource(@NonNull DataSourceDesc dsd);

		/**
		* Sets a single data source as described by a DataSourceDesc which will be played
		* after current data source is finished.
		*
		* @param dsd the descriptor of data source you want to play after current one
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setNextDataSource(@NonNull DataSourceDesc dsd);
		public abstract Object setNextDataSource(@NonNull DataSourceDesc dsd);

		/**
		* Sets a list of data sources to be played sequentially after current data source is done.
		*
		* @param dsds the list of data sources you want to play after current one
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setNextDataSources(@NonNull List<DataSourceDesc> dsds);
		public abstract Object setNextDataSources(@NonNull List<DataSourceDesc> dsds);

		/**
		* Removes all data sources pending to be played.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void clearNextDataSources();
		public abstract Object clearNextDataSources();

		/**
		* Gets the current data source as described by a DataSourceDesc.
		@@ -518,9 +528,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		/**
		* Configures the player to loop on the current data source.
		* @param loop true if the current data source is meant to loop.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void loopCurrent(boolean loop);
		public abstract Object loopCurrent(boolean loop);

		/**
		* Sets the volume of the audio of the media to play, expressed as a linear multiplier
		@@ -530,9 +541,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* A value of 0.0f indicates muting, a value of 1.0f is the nominal unattenuated and unamplified
		* gain. See {@link #getMaxPlayerVolume()} for the volume range supported by this player.
		* @param volume a value between 0.0f and {@link #getMaxPlayerVolume()}.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setPlayerVolume(float volume);
		public abstract Object setPlayerVolume(float volume);

		/**
		* Returns the current volume of this player to this player.
		@@ -573,9 +585,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		*
		* @param label An application specific Object used to help to identify the completeness
		* of a batch of commands.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public void notifyWhenCommandLabelReached(@NonNull Object label) { }
		public abstract Object notifyWhenCommandLabelReached(@NonNull Object label);

		/**
		* Sets the {@link SurfaceHolder} to use for displaying the video
		@@ -590,9 +603,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* @param sh the SurfaceHolder to use for video display
		* @throws IllegalStateException if the internal player engine has not been
		* initialized or has been released.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		* @hide
		*/
		public abstract void setDisplay(SurfaceHolder sh);
		public abstract Object setDisplay(SurfaceHolder sh);

		/**
		* Sets the {@link Surface} to be used as the sink for the video portion of
		@@ -612,9 +626,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* the media.
		* @throws IllegalStateException if the internal player engine has not been
		* initialized or has been released.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setSurface(Surface surface);
		public abstract Object setSurface(Surface surface);

		/* Do not change these video scaling mode values below without updating
		* their counterparts in system/window.h! Please do not forget to update
		@@ -653,11 +668,21 @@ public abstract class MediaPlayer2 implements AutoCloseable
		*
		* @param mode target video scaling mode. Must be one of the supported
		* video scaling modes; otherwise, IllegalArgumentException will be thrown.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*
		* @see MediaPlayer2#VIDEO_SCALING_MODE_SCALE_TO_FIT
		* @hide
		*/
		public void setVideoScalingMode(int mode) { }
		public abstract Object setVideoScalingMode(int mode);

		/**
		* Cancels a pending command.
		*
		* @param token the command to be canceled. This is the returned Object when command is issued.
		* @return {@code false} if the task could not be cancelled; {@code true} otherwise.
		*/
		// This is a synchronous call.
		public abstract boolean cancelCommand(Object token);

		/**
		* Discards all pending commands.
		@@ -820,14 +845,12 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* The input is a hint to MediaPlayer2.
		*
		* @param params the buffering management params.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*
		* @throws IllegalStateException if the internal player engine has not been
		* initialized or has been released, or {@code setDataSource} has not been called.
		* @throws IllegalArgumentException if params is invalid or not supported.
		* @hide
		*/
		// This is an asynchronous call.
		public void setBufferingParams(@NonNull BufferingParams params) { }
		public abstract Object setBufferingParams(@NonNull BufferingParams params);

		/**
		* Change playback speed of audio by resampling the audio.
		@@ -904,9 +927,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* the object state.
		*
		* @param params the playback params.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setPlaybackParams(@NonNull PlaybackParams params);
		public abstract Object setPlaybackParams(@NonNull PlaybackParams params);

		/**
		* Gets the playback params, containing the current playback rate.
		@@ -920,9 +944,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* Sets A/V sync mode.
		*
		* @param params the A/V sync params to apply
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setSyncParams(@NonNull SyncParams params);
		public abstract Object setSyncParams(@NonNull SyncParams params);

		/**
		* Gets the A/V sync mode.
		@@ -998,9 +1023,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* If msec is negative, time position zero will be used.
		* If msec is larger than duration, duration will be used.
		* @param mode the mode indicating where exactly to seek to.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void seekTo(long msec, @SeekMode int mode);
		public abstract Object seekTo(long msec, @SeekMode int mode);

		/**
		* Get current playback position as a {@link MediaTimestamp}.
		@@ -1055,9 +1081,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* However, it is possible to force this player to be part of an already existing audio session
		* by calling this method.
		* This method must be called before one of the overloaded <code> setDataSource </code> methods.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setAudioSessionId(int sessionId);
		public abstract Object setAudioSessionId(int sessionId);

		/**
		* Returns the audio session ID.
		@@ -1080,9 +1107,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* <p>This method must be called after one of the overloaded <code> setDataSource </code>
		* methods.
		* @param effectId system wide unique id of the effect to attach
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void attachAuxEffect(int effectId);
		public abstract Object attachAuxEffect(int effectId);


		/**
		@@ -1096,9 +1124,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* x == 0 -> level = 0
		* 0 < x <= R -> level = 10^(72*(x-R)/20/R)
		* @param level send level scalar
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void setAuxEffectSendLevel(float level);
		public abstract Object setAuxEffectSendLevel(float level);

		/**
		* Class for MediaPlayer2 to return each audio/video/subtitle track's metadata.
		@@ -1221,12 +1250,12 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* @param index the index of the track to be selected. The valid range of the index
		* is 0..total number of track - 1. The total number of tracks as well as the type of
		* each individual track can be found by calling {@link #getTrackInfo()} method.
		* @throws IllegalStateException if called in an invalid state.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*
		* @see MediaPlayer2#getTrackInfo
		*/
		// This is an asynchronous call.
		public abstract void selectTrack(int index);
		public abstract Object selectTrack(int index);

		/**
		* Deselect a track.
		@@ -1238,12 +1267,12 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* @param index the index of the track to be deselected. The valid range of the index
		* is 0..total number of tracks - 1. The total number of tracks as well as the type of
		* each individual track can be found by calling {@link #getTrackInfo()} method.
		* @throws IllegalStateException if called in an invalid state.
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*
		* @see MediaPlayer2#getTrackInfo
		*/
		// This is an asynchronous call.
		public abstract void deselectTrack(int index);
		public abstract Object deselectTrack(int index);

		/**
		* Interface definition for callbacks to be invoked when the player has the corresponding
		@@ -1614,16 +1643,6 @@ public abstract class MediaPlayer2 implements AutoCloseable
		*/
		public static final int CALL_COMPLETED_PREPARE = 6;

		/** The player just completed a call {@link #releaseDrm}.
		* @see EventCallback#onCallCompleted
		*/
		public static final int CALL_COMPLETED_RELEASE_DRM = 12;

		/** The player just completed a call {@link #restoreDrmKeys}.
		* @see EventCallback#onCallCompleted
		*/
		public static final int CALL_COMPLETED_RESTORE_DRM_KEYS = 13;

		/** The player just completed a call {@link #seekTo}.
		* @see EventCallback#onCallCompleted
		*/
		@@ -1706,6 +1725,12 @@ public abstract class MediaPlayer2 implements AutoCloseable
		*/
		public static final int CALL_COMPLETED_SET_VIDEO_SCALING_MODE = 32;

		/** The player just completed a call {@link #setDisplay}.
		* @see EventCallback#onCallCompleted
		* @hide
		*/
		public static final int CALL_COMPLETED_SET_DISPLAY = 33;

		/**
		* The start of the methods which have separate call complete callback.
		* @hide
		@@ -1736,8 +1761,6 @@ public abstract class MediaPlayer2 implements AutoCloseable
		CALL_COMPLETED_PAUSE,
		CALL_COMPLETED_PLAY,
		CALL_COMPLETED_PREPARE,
		CALL_COMPLETED_RELEASE_DRM,
		CALL_COMPLETED_RESTORE_DRM_KEYS,
		CALL_COMPLETED_SEEK_TO,
		CALL_COMPLETED_SELECT_TRACK,
		CALL_COMPLETED_SET_AUDIO_ATTRIBUTES,
		@@ -1754,6 +1777,7 @@ public abstract class MediaPlayer2 implements AutoCloseable
		CALL_COMPLETED_CLEAR_NEXT_DATA_SOURCES,
		CALL_COMPLETED_SET_BUFFERING_PARAMS,
		CALL_COMPLETED_SET_VIDEO_SCALING_MODE,
		CALL_COMPLETED_SET_DISPLAY,
		CALL_COMPLETED_NOTIFY_WHEN_COMMAND_LABEL_REACHED,
		CALL_COMPLETED_PREPARE_DRM,
		})
		@@ -1972,9 +1996,11 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* @param uuid The UUID of the crypto scheme. If not known beforehand, it can be retrieved
		* from the source through {@code getDrmInfo} or registering a
		* {@link DrmEventCallback#onDrmInfo}.
		*
		* @return a token which can be used to cancel the operation later with {@link #cancel}.
		*/
		// This is an asynchronous call.
		public abstract void prepareDrm(@NonNull UUID uuid);
		public abstract Object prepareDrm(@NonNull UUID uuid);

		/**
		* Releases the DRM session
		@@ -1985,8 +2011,9 @@ public abstract class MediaPlayer2 implements AutoCloseable
		*
		* @throws NoDrmSchemeException if there is no active DRM session to release
		*/
		// This is an asynchronous call.
		public abstract void releaseDrm() throws NoDrmSchemeException;
		// This is a synchronous call.
		public abstract void releaseDrm()
		throws NoDrmSchemeException;

		/**
		* A key request/response exchange occurs between the app and a license server
		@@ -2061,8 +2088,10 @@ public abstract class MediaPlayer2 implements AutoCloseable
		* keys to load, obtained from a prior call to {@link #provideDrmKeyResponse}.
		*
		* @param keySetId identifies the saved key set to restore
		*
		* @throws NoDrmSchemeException if there is no active DRM session
		*/
		// This is an asynchronous call.
		// This is a synchronous call.
		public abstract void restoreDrmKeys(@NonNull byte[] keySetId)
		throws NoDrmSchemeException;

media/java/android/media/MediaPlayer2Impl.java

+116 −200

File changed.

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