Java Code Examples for android.media.AudioManager#getProperty()

The following examples show how to use android.media.AudioManager#getProperty() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: AudioTest.java    From walt with Apache License 2.0 6 votes vote down vote up
AudioTest(Context context) {
    super(context);
    playbackRepetitions = getIntPreference(context, R.string.preference_audio_out_reps, 10);
    recordingRepetitions = getIntPreference(context, R.string.preference_audio_in_reps, 5);
    threshold = getIntPreference(context, R.string.preference_audio_in_threshold, 5000);

    //Check for optimal output sample rate and buffer size
    AudioManager am = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
    String frameRateStr = am.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
    String framesPerBufferStr = am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
    logger.log("Optimal frame rate is: " + frameRateStr);
    logger.log("Optimal frames per buffer is: " + framesPerBufferStr);

    //Convert to ints
    frameRate = Integer.parseInt(frameRateStr);
    framesPerBuffer = Integer.parseInt(framesPerBufferStr);

    //Create the audio engine
    createEngine();
    createBufferQueueAudioPlayer(frameRate, framesPerBuffer);
    logger.log("Audio engine created");
}
 
Example 2
Source File: AudioManagerAndroid.java    From droidkit-webrtc with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
@SuppressWarnings("unused")
private AudioManagerAndroid(Context context) {
  AudioManager audioManager = (AudioManager)
      context.getSystemService(Context.AUDIO_SERVICE);

  mNativeOutputSampleRate = DEFAULT_SAMPLING_RATE;
  mAudioLowLatencyOutputFrameSize = DEFAULT_FRAMES_PER_BUFFER;
  if (android.os.Build.VERSION.SDK_INT >=
      android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
    String sampleRateString = audioManager.getProperty(
        AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
    if (sampleRateString != null) {
      mNativeOutputSampleRate = Integer.parseInt(sampleRateString);
    }
    String framesPerBuffer = audioManager.getProperty(
        AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
    if (framesPerBuffer != null) {
        mAudioLowLatencyOutputFrameSize = Integer.parseInt(framesPerBuffer);
    }
  }
  mAudioLowLatencySupported = context.getPackageManager().hasSystemFeature(
      PackageManager.FEATURE_AUDIO_LOW_LATENCY);
}
 
Example 3
Source File: AudioManagerAndroid.java    From webrtc-app-mono with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
@SuppressWarnings("unused")
private AudioManagerAndroid(Context context) {
  AudioManager audioManager = (AudioManager)
      context.getSystemService(Context.AUDIO_SERVICE);

  mNativeOutputSampleRate = DEFAULT_SAMPLING_RATE;
  mAudioLowLatencyOutputFrameSize = DEFAULT_FRAMES_PER_BUFFER;
  if (android.os.Build.VERSION.SDK_INT >=
      android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
    String sampleRateString = audioManager.getProperty(
        AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
    if (sampleRateString != null) {
      mNativeOutputSampleRate = Integer.parseInt(sampleRateString);
    }
    String framesPerBuffer = audioManager.getProperty(
        AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
    if (framesPerBuffer != null) {
        mAudioLowLatencyOutputFrameSize = Integer.parseInt(framesPerBuffer);
    }
  }
  mAudioLowLatencySupported = context.getPackageManager().hasSystemFeature(
      PackageManager.FEATURE_AUDIO_LOW_LATENCY);
}
 
Example 4
Source File: WebRtcAudioManager.java    From webrtc_android with MIT License 5 votes vote down vote up
private static int getSampleRateForApiLevel(AudioManager audioManager) {
  if (Build.VERSION.SDK_INT < 17) {
    return DEFAULT_SAMPLE_RATE_HZ;
  }
  String sampleRateString = audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
  return (sampleRateString == null) ? DEFAULT_SAMPLE_RATE_HZ : Integer.parseInt(sampleRateString);
}
 
Example 5
Source File: WebRtcAudioManager.java    From webrtc_android with MIT License 5 votes vote down vote up
private static int getLowLatencyFramesPerBuffer(AudioManager audioManager) {
  if (Build.VERSION.SDK_INT < 17) {
    return DEFAULT_FRAME_PER_BUFFER;
  }
  String framesPerBuffer =
      audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
  return framesPerBuffer == null ? DEFAULT_FRAME_PER_BUFFER : Integer.parseInt(framesPerBuffer);
}
 
Example 6
Source File: VoIPBaseService.java    From TelePlus-Android with GNU General Public License v2.0 4 votes vote down vote up
@Override
public void onCreate() {
	super.onCreate();
	if (BuildVars.LOGS_ENABLED) {
		FileLog.d("=============== VoIPService STARTING ===============");
	}
	AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER)!=null) {
		int outFramesPerBuffer = Integer.parseInt(am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER));
		VoIPController.setNativeBufferSize(outFramesPerBuffer);
	} else {
		VoIPController.setNativeBufferSize(AudioTrack.getMinBufferSize(48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT) / 2);
	}
	try {
		cpuWakelock = ((PowerManager) getSystemService(POWER_SERVICE)).newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "telegram-voip");
		cpuWakelock.acquire();

		btAdapter=am.isBluetoothScoAvailableOffCall() ? BluetoothAdapter.getDefaultAdapter() : null;

		IntentFilter filter = new IntentFilter();
		filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
		if(!USE_CONNECTION_SERVICE){
			filter.addAction(ACTION_HEADSET_PLUG);
			if(btAdapter!=null){
				filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
				filter.addAction(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
			}
			filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
		}
		registerReceiver(receiver, filter);

		soundPool = new SoundPool(1, AudioManager.STREAM_VOICE_CALL, 0);
		spConnectingId = soundPool.load(this, R.raw.voip_connecting, 1);
		spRingbackID = soundPool.load(this, R.raw.voip_ringback, 1);
		spFailedID = soundPool.load(this, R.raw.voip_failed, 1);
		spEndId = soundPool.load(this, R.raw.voip_end, 1);
		spBusyId = soundPool.load(this, R.raw.voip_busy, 1);

		am.registerMediaButtonEventReceiver(new ComponentName(this, VoIPMediaButtonReceiver.class));

		if(!USE_CONNECTION_SERVICE && btAdapter!=null && btAdapter.isEnabled()){
			int headsetState=btAdapter.getProfileConnectionState(BluetoothProfile.HEADSET);
			updateBluetoothHeadsetState(headsetState==BluetoothProfile.STATE_CONNECTED);
			//if(headsetState==BluetoothProfile.STATE_CONNECTED)
			//	am.setBluetoothScoOn(true);
			for (StateListener l : stateListeners)
				l.onAudioSettingsChanged();
		}

	} catch (Exception x) {
		if (BuildVars.LOGS_ENABLED) {
			FileLog.e("error initializing voip controller", x);
		}
		callFailed();
	}
}
 
Example 7
Source File: SnapclientService.java    From snapdroid with GNU General Public License v3.0 4 votes vote down vote up
private void startProcess() throws IOException {
    Log.d(TAG, "startProcess");
    String player = "oboe";
    String configuredEngine = Settings.getInstance(getApplicationContext()).getAudioEngine();
    if (configuredEngine.equals("OpenSL"))
        player = "opensl";
    else if (configuredEngine.equals("Oboe"))
        player = "oboe";
    else {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O)
            player = "opensl";
        else
            player = "oboe";
    }

    String rate = null;
    String fpb = null;
    String sampleformat = "*:16:*";
    AudioManager audioManager = (AudioManager) this.getSystemService(Context.AUDIO_SERVICE);
    if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) && Settings.getInstance(getApplicationContext()).doResample()) {
        rate = audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
        fpb = audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
        sampleformat = rate + ":16:*";
    }
    Log.i(TAG, "Configured engine: " + configuredEngine + ", active engine: " + player + ", sampleformat: " + sampleformat);

    ProcessBuilder pb = new ProcessBuilder()
            .command(this.getApplicationInfo().nativeLibraryDir + "/libsnapclient.so", "-h", host, "-p", Integer.toString(port), "--hostID", getUniqueId(this.getApplicationContext()), "--player", player, "--sampleformat", sampleformat, "--logfilter", "*:info,Stats:debug")
            .redirectErrorStream(true);
    Map<String, String> env = pb.environment();
    if (rate != null)
        env.put("SAMPLE_RATE", rate);
    if (fpb != null)
        env.put("FRAMES_PER_BUFFER", fpb);
    process = pb.start();

    Thread reader = new Thread(new Runnable() {
        @Override
        public void run() {
            BufferedReader bufferedReader = new BufferedReader(
                    new InputStreamReader(process.getInputStream()));
            String line;
            try {
                while ((line = bufferedReader.readLine()) != null) {
                    log(line);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });
    logReceived = false;
    reader.start();
}
 
Example 8
Source File: VoIPBaseService.java    From TelePlus-Android with GNU General Public License v2.0 4 votes vote down vote up
@Override
public void onCreate() {
	super.onCreate();
	if (BuildVars.LOGS_ENABLED) {
		FileLog.d("=============== VoIPService STARTING ===============");
	}
	AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER)!=null) {
		int outFramesPerBuffer = Integer.parseInt(am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER));
		VoIPController.setNativeBufferSize(outFramesPerBuffer);
	} else {
		VoIPController.setNativeBufferSize(AudioTrack.getMinBufferSize(48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT) / 2);
	}
	try {
		cpuWakelock = ((PowerManager) getSystemService(POWER_SERVICE)).newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "telegram-voip");
		cpuWakelock.acquire();

		btAdapter=am.isBluetoothScoAvailableOffCall() ? BluetoothAdapter.getDefaultAdapter() : null;

		IntentFilter filter = new IntentFilter();
		filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
		if(!USE_CONNECTION_SERVICE){
			filter.addAction(ACTION_HEADSET_PLUG);
			if(btAdapter!=null){
				filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
				filter.addAction(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
			}
			filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
		}
		registerReceiver(receiver, filter);

		soundPool = new SoundPool(1, AudioManager.STREAM_VOICE_CALL, 0);
		spConnectingId = soundPool.load(this, R.raw.voip_connecting, 1);
		spRingbackID = soundPool.load(this, R.raw.voip_ringback, 1);
		spFailedID = soundPool.load(this, R.raw.voip_failed, 1);
		spEndId = soundPool.load(this, R.raw.voip_end, 1);
		spBusyId = soundPool.load(this, R.raw.voip_busy, 1);

		am.registerMediaButtonEventReceiver(new ComponentName(this, VoIPMediaButtonReceiver.class));

		if(!USE_CONNECTION_SERVICE && btAdapter!=null && btAdapter.isEnabled()){
			int headsetState=btAdapter.getProfileConnectionState(BluetoothProfile.HEADSET);
			updateBluetoothHeadsetState(headsetState==BluetoothProfile.STATE_CONNECTED);
			//if(headsetState==BluetoothProfile.STATE_CONNECTED)
			//	am.setBluetoothScoOn(true);
			for (StateListener l : stateListeners)
				l.onAudioSettingsChanged();
		}

	} catch (Exception x) {
		if (BuildVars.LOGS_ENABLED) {
			FileLog.e("error initializing voip controller", x);
		}
		callFailed();
	}
}
 
Example 9
Source File: MidiSynthDeviceService.java    From android-midisuite with Apache License 2.0 4 votes vote down vote up
public void queryOptimalAudioSettings() {
    AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    String text = audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
    int framesPerBlock = Integer.parseInt(text);
    mSynthEngine.setFramesPerBlock(framesPerBlock);
}
 
Example 10
Source File: VoIPBaseService.java    From Telegram-FOSS with GNU General Public License v2.0 4 votes vote down vote up
@Override
public void onCreate() {
	super.onCreate();
	if (BuildVars.LOGS_ENABLED) {
		FileLog.d("=============== VoIPService STARTING ===============");
	}
	try {
		AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER)!=null) {
			int outFramesPerBuffer = Integer.parseInt(am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER));
			TgVoip.setBufferSize(outFramesPerBuffer);
		} else {
			TgVoip.setBufferSize(AudioTrack.getMinBufferSize(48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT) / 2);
		}

		cpuWakelock = ((PowerManager) getSystemService(POWER_SERVICE)).newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "telegram-voip");
		cpuWakelock.acquire();

		btAdapter=am.isBluetoothScoAvailableOffCall() ? BluetoothAdapter.getDefaultAdapter() : null;

		IntentFilter filter = new IntentFilter();
		filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
		if(!USE_CONNECTION_SERVICE){
			filter.addAction(ACTION_HEADSET_PLUG);
			if(btAdapter!=null){
				filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
				filter.addAction(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
			}
			filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
		}
		registerReceiver(receiver, filter);

		soundPool = new SoundPool(1, AudioManager.STREAM_VOICE_CALL, 0);
		spConnectingId = soundPool.load(this, R.raw.voip_connecting, 1);
		spRingbackID = soundPool.load(this, R.raw.voip_ringback, 1);
		spFailedID = soundPool.load(this, R.raw.voip_failed, 1);
		spEndId = soundPool.load(this, R.raw.voip_end, 1);
		spBusyId = soundPool.load(this, R.raw.voip_busy, 1);

		am.registerMediaButtonEventReceiver(new ComponentName(this, VoIPMediaButtonReceiver.class));

		if(!USE_CONNECTION_SERVICE && btAdapter!=null && btAdapter.isEnabled()){
			int headsetState=btAdapter.getProfileConnectionState(BluetoothProfile.HEADSET);
			updateBluetoothHeadsetState(headsetState==BluetoothProfile.STATE_CONNECTED);
			//if(headsetState==BluetoothProfile.STATE_CONNECTED)
			//	am.setBluetoothScoOn(true);
			for (StateListener l : stateListeners)
				l.onAudioSettingsChanged();
		}
	} catch (Exception x) {
		if (BuildVars.LOGS_ENABLED) {
			FileLog.e("error initializing voip controller", x);
		}
		callFailed();
	}
}
 
Example 11
Source File: VoIPBaseService.java    From Telegram with GNU General Public License v2.0 4 votes vote down vote up
@Override
public void onCreate() {
	super.onCreate();
	if (BuildVars.LOGS_ENABLED) {
		FileLog.d("=============== VoIPService STARTING ===============");
	}
	try {
		AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER)!=null) {
			int outFramesPerBuffer = Integer.parseInt(am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER));
			TgVoip.setBufferSize(outFramesPerBuffer);
		} else {
			TgVoip.setBufferSize(AudioTrack.getMinBufferSize(48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT) / 2);
		}

		cpuWakelock = ((PowerManager) getSystemService(POWER_SERVICE)).newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "telegram-voip");
		cpuWakelock.acquire();

		btAdapter=am.isBluetoothScoAvailableOffCall() ? BluetoothAdapter.getDefaultAdapter() : null;

		IntentFilter filter = new IntentFilter();
		filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
		if(!USE_CONNECTION_SERVICE){
			filter.addAction(ACTION_HEADSET_PLUG);
			if(btAdapter!=null){
				filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
				filter.addAction(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
			}
			filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
		}
		registerReceiver(receiver, filter);

		soundPool = new SoundPool(1, AudioManager.STREAM_VOICE_CALL, 0);
		spConnectingId = soundPool.load(this, R.raw.voip_connecting, 1);
		spRingbackID = soundPool.load(this, R.raw.voip_ringback, 1);
		spFailedID = soundPool.load(this, R.raw.voip_failed, 1);
		spEndId = soundPool.load(this, R.raw.voip_end, 1);
		spBusyId = soundPool.load(this, R.raw.voip_busy, 1);

		am.registerMediaButtonEventReceiver(new ComponentName(this, VoIPMediaButtonReceiver.class));

		if(!USE_CONNECTION_SERVICE && btAdapter!=null && btAdapter.isEnabled()){
			int headsetState=btAdapter.getProfileConnectionState(BluetoothProfile.HEADSET);
			updateBluetoothHeadsetState(headsetState==BluetoothProfile.STATE_CONNECTED);
			//if(headsetState==BluetoothProfile.STATE_CONNECTED)
			//	am.setBluetoothScoOn(true);
			for (StateListener l : stateListeners)
				l.onAudioSettingsChanged();
		}
	} catch (Exception x) {
		if (BuildVars.LOGS_ENABLED) {
			FileLog.e("error initializing voip controller", x);
		}
		callFailed();
	}
}