Simple master volume support (cbdb49dc) · Commits · e / os / android_frameworks_base

core/jni/android_media_AudioSystem.cpp

+36 −0

Original line number	Diff line number	Diff line
		@@ -204,6 +204,38 @@ android_media_AudioSystem_getStreamVolumeIndex(JNIEnv *env,
		return index;
		}

		static int
		android_media_AudioSystem_setMasterVolume(JNIEnv *env, jobject thiz, jfloat value)
		{
		return check_AudioSystem_Command(AudioSystem::setMasterVolume(value));
		}

		static jfloat
		android_media_AudioSystem_getMasterVolume(JNIEnv *env, jobject thiz)
		{
		float value;
		if (AudioSystem::getMasterVolume(&value) != NO_ERROR) {
		value = -1.0;
		}
		return value;
		}

		static int
		android_media_AudioSystem_setMasterMute(JNIEnv *env, jobject thiz, jboolean mute)
		{
		return check_AudioSystem_Command(AudioSystem::setMasterMute(mute));
		}

		static jfloat
		android_media_AudioSystem_getMasterMute(JNIEnv *env, jobject thiz)
		{
		bool mute;
		if (AudioSystem::getMasterMute(&mute) != NO_ERROR) {
		mute = false;
		}
		return mute;
		}

		static jint
		android_media_AudioSystem_getDevicesForStream(JNIEnv *env, jobject thiz, jint stream)
		{
		@@ -226,6 +258,10 @@ static JNINativeMethod gMethods[] = {
		{"initStreamVolume", "(III)I", (void *)android_media_AudioSystem_initStreamVolume},
		{"setStreamVolumeIndex","(III)I", (void *)android_media_AudioSystem_setStreamVolumeIndex},
		{"getStreamVolumeIndex","(II)I", (void *)android_media_AudioSystem_getStreamVolumeIndex},
		{"setMasterVolume", "(F)I", (void *)android_media_AudioSystem_setMasterVolume},
		{"getMasterVolume", "()F", (void *)android_media_AudioSystem_getMasterVolume},
		{"setMasterMute", "(Z)I", (void *)android_media_AudioSystem_setMasterMute},
		{"getMasterMute", "()Z", (void *)android_media_AudioSystem_getMasterMute},
		{"getDevicesForStream", "(I)I", (void *)android_media_AudioSystem_getDevicesForStream},
		};

core/res/res/values/config.xml

+4 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,10 @@
		As of Honeycomb, blurring is not supported anymore. -->
		<bool name="config_sf_slowBlur">true</bool>

		<!-- Flag indicating that the media framework should allow changing
		master volume stream and nothing else . -->
		<bool name="config_useMasterVolume">false</bool>

		<!-- The duration (in milliseconds) of a short animation. -->
		<integer name="config_shortAnimTime">200</integer>

core/res/res/values/public.xml

+1 −0

Original line number	Diff line number	Diff line
		@@ -234,6 +234,7 @@
		<java-symbol type="bool" name="preferences_prefer_dual_pane" />
		<java-symbol type="bool" name="skip_restoring_network_selection" />
		<java-symbol type="bool" name="split_action_bar_is_narrow" />
		<java-symbol type="bool" name="config_useMasterVolume" />

		<java-symbol type="integer" name="config_cursorWindowSize" />
		<java-symbol type="integer" name="config_longPressOnPowerBehavior" />

media/java/android/media/AudioManager.java

+56 −19

Original line number	Diff line number	Diff line
		@@ -48,6 +48,7 @@ public class AudioManager {
		private final Context mContext;
		private long mVolumeKeyUpTime;
		private int mVolumeControlStream = -1;
		private final boolean mUseMasterVolume;
		private static String TAG = "AudioManager";

		/**
		@@ -354,6 +355,8 @@ public class AudioManager {
		*/
		public AudioManager(Context context) {
		mContext = context;
		mUseMasterVolume = mContext.getResources().getBoolean(
		com.android.internal.R.bool.config_useMasterVolume);
		}

		private static IAudioService getService()
		@@ -382,10 +385,14 @@ public class AudioManager {
		* The user has hit another key during the delay (e.g., 300ms)
		* since the last volume key up, so cancel any sounds.
		*/
		adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME,
		if (mUseMasterVolume) {
		adjustMasterVolume(ADJUST_SAME);
		} else {
		adjustSuggestedStreamVolume(ADJUST_SAME,
		stream, AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
		}
		}
		}

		/**
		* @hide
		@@ -399,6 +406,12 @@ public class AudioManager {
		* responsive to the user.
		*/
		int flags = FLAG_SHOW_UI \| FLAG_VIBRATE;
		if (mUseMasterVolume) {
		adjustMasterVolume(
		keyCode == KeyEvent.KEYCODE_VOLUME_UP
		? ADJUST_RAISE
		: ADJUST_LOWER);
		} else {
		if (mVolumeControlStream != -1) {
		stream = mVolumeControlStream;
		flags \|= FLAG_FORCE_STREAM;
		@@ -409,6 +422,7 @@ public class AudioManager {
		: ADJUST_LOWER,
		stream,
		flags);
		}
		break;
		case KeyEvent.KEYCODE_VOLUME_MUTE:
		// TODO: Actually handle MUTE.
		@@ -427,6 +441,11 @@ public class AudioManager {
		* Play a sound. This is done on key up since we don't want the
		* sound to play when a user holds down volume down to mute.
		*/
		if (mUseMasterVolume) {
		if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
		adjustMasterVolume(ADJUST_SAME);
		}
		} else {
		int flags = FLAG_PLAY_SOUND;
		if (mVolumeControlStream != -1) {
		stream = mVolumeControlStream;
		@@ -436,6 +455,7 @@ public class AudioManager {
		ADJUST_SAME,
		stream,
		flags);
		}

		mVolumeKeyUpTime = SystemClock.uptimeMillis();
		break;
		@@ -518,7 +538,24 @@ public class AudioManager {
		try {
		service.adjustSuggestedStreamVolume(direction, suggestedStreamType, flags);
		} catch (RemoteException e) {
		Log.e(TAG, "Dead object in adjustVolume", e);
		Log.e(TAG, "Dead object in adjustSuggestedStreamVolume", e);
		}
		}

		/**
		* Adjusts the master volume for the device's audio amplifier.
		* <p>
		*
		* @param direction The direction to adjust the volume. One of
		* {@link #ADJUST_LOWER}, {@link #ADJUST_RAISE}, or
		* {@link #ADJUST_SAME}.
		*/
		private void adjustMasterVolume(int direction) {
		IAudioService service = getService();
		try {
		service.adjustMasterVolume(direction);
		} catch (RemoteException e) {
		Log.e(TAG, "Dead object in adjustMasterVolume", e);
		}
		}

media/java/android/media/AudioService.java

+20 −0

Original line number	Diff line number	Diff line
		@@ -136,6 +136,9 @@ public class AudioService extends IAudioService.Stub {
		// Timeout for connection to bluetooth headset service
		private static final int BT_HEADSET_CNCT_TIMEOUT_MS = 3000;

		// Amount to raise/lower master volume
		// FIXME - this should probably be in a resource
		private static final float MASTER_VOLUME_INCREMENT = 0.05f;

		/** @see AudioSystemThread */
		private AudioSystemThread mAudioSystemThread;
		@@ -602,6 +605,23 @@ public class AudioService extends IAudioService.Stub {
		sendVolumeUpdate(streamType, oldIndex, index, flags);
		}

		/** @see AudioManager#adjustMasterVolume(int) */
		public void adjustMasterVolume(int direction) {
		ensureValidDirection(direction);

		float volume = AudioSystem.getMasterVolume();
		if (volume >= 0.0) {
		if (direction == AudioManager.ADJUST_RAISE) {
		volume += MASTER_VOLUME_INCREMENT;
		if (volume > 1.0f) volume = 1.0f;
		} else if (direction == AudioManager.ADJUST_LOWER) {
		volume -= MASTER_VOLUME_INCREMENT;
		if (volume < 0.0f) volume = 0.0f;
		}
		AudioSystem.setMasterVolume(volume);
		}
		}

		/** @see AudioManager#setStreamVolume(int, int, int) */
		public void setStreamVolume(int streamType, int index, int flags) {
		ensureValidStreamType(streamType);