TIF: TvInputHardwareManager to listen to volume changes (49e55935) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/tv/TvInputHardwareManager.java

+80 −12

Original line number	Diff line number	Diff line
		@@ -19,7 +19,10 @@ package com.android.server.tv;
		import static android.media.tv.TvInputManager.INPUT_STATE_CONNECTED;
		import static android.media.tv.TvInputManager.INPUT_STATE_DISCONNECTED;

		import android.content.BroadcastReceiver;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.hardware.hdmi.HdmiControlManager;
		import android.hardware.hdmi.HdmiDeviceInfo;
		import android.hardware.hdmi.HdmiHotplugEvent;
		@@ -74,6 +77,7 @@ import java.util.Map;
		class TvInputHardwareManager implements TvInputHal.Callback {
		private static final String TAG = TvInputHardwareManager.class.getSimpleName();

		private final Context mContext;
		private final Listener mListener;
		private final TvInputHal mHal = new TvInputHal(this);
		private final SparseArray<Connection> mConnections = new SparseArray<>();
		@@ -92,6 +96,15 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		private final IHdmiDeviceEventListener mHdmiDeviceEventListener = new HdmiDeviceEventListener();
		private final IHdmiSystemAudioModeChangeListener mHdmiSystemAudioModeChangeListener =
		new HdmiSystemAudioModeChangeListener();
		private final BroadcastReceiver mVolumeReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		handleVolumeChange(context, intent);
		}
		};
		private int mCurrentIndex = 0;
		private int mCurrentMaxIndex = 0;
		private final boolean mUseMasterVolume;

		// TODO: Should handle STANDBY case.
		private final SparseBooleanArray mHdmiStateMap = new SparseBooleanArray();
		@@ -103,8 +116,11 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		private final Object mLock = new Object();

		public TvInputHardwareManager(Context context, Listener listener) {
		mContext = context;
		mListener = listener;
		mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
		mUseMasterVolume = mContext.getResources().getBoolean(
		com.android.internal.R.bool.config_useMasterVolume);
		mHal.init();
		}

		@@ -125,6 +141,13 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		} else {
		Slog.w(TAG, "HdmiControlService is not available");
		}
		if (!mUseMasterVolume) {
		final IntentFilter filter = new IntentFilter();
		filter.addAction(AudioManager.VOLUME_CHANGED_ACTION);
		filter.addAction(AudioManager.STREAM_MUTE_CHANGED_ACTION);
		mContext.registerReceiver(mVolumeReceiver, filter);
		}
		updateVolume();
		}
		}

		@@ -483,6 +506,47 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		}
		}

		private void updateVolume() {
		mCurrentMaxIndex = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
		mCurrentIndex = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
		}

		private void handleVolumeChange(Context context, Intent intent) {
		String action = intent.getAction();
		if (action.equals(AudioManager.VOLUME_CHANGED_ACTION)) {
		int streamType = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, -1);
		if (streamType != AudioManager.STREAM_MUSIC) {
		return;
		}
		int index = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, 0);
		if (index == mCurrentIndex) {
		return;
		}
		mCurrentIndex = index;
		} else if (action.equals(AudioManager.STREAM_MUTE_CHANGED_ACTION)) {
		int streamType = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, -1);
		if (streamType != AudioManager.STREAM_MUSIC) {
		return;
		}
		// volume index will be updated at onMediaStreamVolumeChanged() through updateVolume().
		} else {
		Slog.w(TAG, "Unrecognized intent: " + intent);
		return;
		}
		synchronized (mLock) {
		for (int i = 0; i < mConnections.size(); ++i) {
		TvInputHardwareImpl hardwareImpl = mConnections.valueAt(i).getHardwareImplLocked();
		if (hardwareImpl != null) {
		hardwareImpl.onMediaStreamVolumeChanged();
		}
		}
		}
		}

		private float getMediaStreamVolume() {
		return mUseMasterVolume ? 1.0f : ((float) mCurrentIndex / (float) mCurrentMaxIndex);
		}

		private class Connection implements IBinder.DeathRecipient {
		private final TvInputHardwareInfo mHardwareInfo;
		private TvInputInfo mInfo;
		@@ -611,7 +675,7 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		private AudioDevicePort mAudioSink;
		private AudioPatch mAudioPatch = null;
		private float mCommittedVolume = 0.0f;
		private float mVolume = 0.0f;
		private float mSourceVolume = 0.0f;

		private TvStreamConfig mActiveConfig = null;

		@@ -733,8 +797,10 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		return;
		}

		updateVolume();
		float volume = mSourceVolume * getMediaStreamVolume();
		AudioGainConfig sourceGainConfig = null;
		if (mAudioSource.gains().length > 0 && mVolume != mCommittedVolume) {
		if (mAudioSource.gains().length > 0 && volume != mCommittedVolume) {
		AudioGain sourceGain = null;
		for (AudioGain gain : mAudioSource.gains()) {
		if ((gain.mode() & AudioGain.MODE_JOINT) != 0) {
		@@ -747,17 +813,13 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		int steps = (sourceGain.maxValue() - sourceGain.minValue())
		/ sourceGain.stepValue();
		int gainValue = sourceGain.minValue();
		if (mVolume < 1.0f) {
		gainValue += sourceGain.stepValue() * (int) (mVolume * steps + 0.5);
		if (volume < 1.0f) {
		gainValue += sourceGain.stepValue() * (int) (volume * steps + 0.5);
		} else {
		gainValue = sourceGain.maxValue();
		}
		int numChannels = 0;
		for (int mask = sourceGain.channelMask(); mask > 0; mask >>= 1) {
		numChannels += (mask & 1);
		}
		int[] gainValues = new int[numChannels];
		Arrays.fill(gainValues, gainValue);
		// size of gain values is 1 in MODE_JOINT
		int[] gainValues = new int[] { gainValue };
		sourceGainConfig = sourceGain.buildConfig(AudioGain.MODE_JOINT,
		sourceGain.channelMask(), gainValues, 0);
		} else {
		@@ -830,7 +892,7 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		shouldRecreateAudioPatch = true;
		}
		if (shouldRecreateAudioPatch) {
		mCommittedVolume = mVolume;
		mCommittedVolume = volume;
		mAudioManager.createAudioPatch(
		audioPatchArray,
		new AudioPortConfig[] { sourceConfig },
		@@ -848,7 +910,7 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		if (mReleased) {
		throw new IllegalStateException("Device already released.");
		}
		mVolume = volume;
		mSourceVolume = volume;
		updateAudioConfigLocked();
		}
		}
		@@ -945,6 +1007,12 @@ class TvInputHardwareManager implements TvInputHal.Callback {
		updateAudioConfigLocked();
		}
		}

		public void onMediaStreamVolumeChanged() {
		synchronized (mImplLock) {
		updateAudioConfigLocked();
		}
		}
		}

		interface Listener {