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Merge "Added intents for audio effects control application" into gingerbread

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This commit is contained in:
Eric Laurent
2010-09-14 13:02:18 -07:00
committed by Android (Google) Code Review
parent 1188f5e76c d09af7d551
commit eea35ce87f
2 changed files with 127 additions and 4 deletions
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130
media/java/android/media/AudioEffect.java
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@ -16,12 +16,14 @@
package android.media;
import android.util.Log;
import java.lang.ref.WeakReference;
import java.io.IOException;
import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.nio.ByteOrder;
import java.nio.ByteBuffer;
import java.util.UUID;
@ -839,6 +841,128 @@ public class AudioEffect {
byte[] value);
}
// -------------------------------------------------------------------------
// Audio Effect Control panel intents
// -------------------------------------------------------------------------
/**
* This intent launches an audio effect control panel UI. The goal of this intent is to enable
* separate implementations of music/media player applications and audio effect control
* application or services. This will allow platform vendors to offer more advanced control
* options for standard effects or control for platform specific effects.
* <p>The intent carries a number of extras used by the player application to communicate
* necessary pieces of information to the control panel application.
* <p>The calling application must use the
* {@link android.app.Activity#startActivityForResult(Intent, int)} method to launch the
* control panel so that its package name is indicated and used by the control panel
* application to keep track of changes for this particular application.
* <p>The android.media.EXTRA_AUDIO_SESSION extra will indicate an audio session to which the
* audio effects should be applied. If no audio session is specified, either one of the
* follownig will happen:
* - If an audio session was previously opened by the calling application with
* {@link #ACTION_OPEN_AUDIO_EFFECT_CONTROL_SESSION} intent, the effect changes will
* be applied to that session.
* - If no audio session is opened, the changes will be stored in the package specific storage
* area and applied whenever a new audio session is opened by this application.
* <p>The android.media.EXTRA_CONTENT_TYPE extra will help the control panel application
* customize both the UI layout and the default audio effect settings if none are already
* stored for the calling application.
* {@hide} pending API council approval
*/
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public static final String ACTION_DISPLAY_AUDIO_EFFECT_CONTROL_PANEL =
"android.media.action.DISPLAY_AUDIO_EFFECT_CONTROL_PANEL";
/**
* This intent indicates to the effect control application or service that a new audio session
* is opened and requires audio effects to be applied. This is different from
* {@link #ACTION_DISPLAY_AUDIO_EFFECT_CONTROL_PANEL} in that no UI should be displayed in
* this case. Music player applications can broadcast this intent before starting playback
* to make sure that any audio effect settings previously selected by the user are applied.
* <p>The effect control application receiving this intent will look for previously stored
* settings for the calling application, create all required audio effects and apply the
* effect settings to the specified audio session.
* <p>The calling package name is indicated by the {@link #EXTRA_PACKAGE_NAME} extra and the
* audio session ID by the {@link #EXTRA_AUDIO_SESSION} extra. Both extras are mandatory.
* <p>If no stored settings are found for the calling application, default settings for the
* content type indicated by {@link #EXTRA_CONTENT_TYPE} will be applied. The default settings
* for a given content type are platform specific.
* {@hide} pending API council approval
*/
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String ACTION_OPEN_AUDIO_EFFECT_CONTROL_SESSION =
"android.media.action.OPEN_AUDIO_EFFECT_CONTROL_SESSION";
/**
* This intent indicates to the effect control application or service that an audio session
* is closed and that effects should not be applied anymore.
* <p>The effect control application receiving this intent will delete all effects on this
* session and store current settings in package specific storage.
* <p>The calling package name is indicated by the {@link #EXTRA_PACKAGE_NAME} extra and the
* audio session ID by the {@link #EXTRA_AUDIO_SESSION} extra. Both extras are mandatory.
* <p>It is good practice for applications to broadcast this intent when music playback stops
* and/or when exiting to free system resources consumed by audio effect engines.
* {@hide} pending API council approval
*/
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String ACTION_CLOSE_AUDIO_EFFECT_CONTROL_SESSION =
"android.media.action.CLOSE_AUDIO_EFFECT_CONTROL_SESSION";
/**
* This extra indicates the ID of the audio session the effects should be applied to.
* <p>The extra value is of type int and is the audio session ID.
* @see android.media.MediaPlayer#setAudioSessionId(int) for details on audio sessions.
* {@hide} pending API council approval
*/
public static final String EXTRA_AUDIO_SESSION = "android.media.extra.AUDIO_SESSION";
/**
* This extra indicates the package name of the calling application for
* {@link #ACTION_OPEN_AUDIO_EFFECT_CONTROL_SESSION} and
* {@link #ACTION_CLOSE_AUDIO_EFFECT_CONTROL_SESSION} intents.
* <p>The extra value is a string containing the full package name.
* {@hide} pending API council approval
*/
public static final String EXTRA_PACKAGE_NAME = "android.media.extra.PACKAGE_NAME";
/**
* This extra indicates which type of content is played by the application. This information is
* used by the effect control application to customize UI and default effect settings.
* The content type is one of the following:
* <ul>
* <li>{@link #CONTENT_TYPE_MUSIC}</li>
* <li>{@link #CONTENT_TYPE_MOVIE}</li>
* <li>{@link #CONTENT_TYPE_GAME}</li>
* <li>{@link #CONTENT_TYPE_VOICE}</li>
* </ul>
* If omitted, the content type defaults to {@link #CONTENT_TYPE_MUSIC}.
* {@hide} pending API council approval
*/
public static final String EXTRA_CONTENT_TYPE = "android.media.extra.CONTENT_TYPE";
/**
* Value for {@link #EXTRA_CONTENT_TYPE} when the type of content played is music
* {@hide} pending API council approval
*/
public static final int CONTENT_TYPE_MUSIC = 0;
/**
* Value for {@link #EXTRA_CONTENT_TYPE} when the type of content played is video of movie
* {@hide} pending API council approval
*/
public static final int CONTENT_TYPE_MOVIE = 1;
/**
* Value for {@link #EXTRA_CONTENT_TYPE} when the type of content played is game audio
* {@hide} pending API council approval
*/
public static final int CONTENT_TYPE_GAME = 2;
/**
* Value for {@link #EXTRA_CONTENT_TYPE} when the type of content played is voice audio
* {@hide} pending API council approval
*/
public static final int CONTENT_TYPE_VOICE = 3;
// ---------------------------------------------------------
// Inner classes
// --------------------

1
media/java/android/media/MediaPlayer.java
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@ -1210,7 +1210,6 @@ public class MediaPlayer
* effect which can be applied on any sound source that directs a certain amount of its
* energy to this effect. This amount is defined by setAuxEffectSendLevel().
* {@see #setAuxEffectSendLevel(float)}.
// TODO when AudioEffect is unhidden
* <p>After creating an auxiliary effect (e.g. {@link android.media.EnvironmentalReverb}),
* retrieve its ID with {@link android.media.AudioEffect#getId()} and use it when calling
* this method to attach the player to the effect.