Example usage for android.media AudioTrack MODE

Introduction

In this page you can find the example usage for android.media AudioTrack MODE_STREAM.

Prototype

int MODE_STREAM

To view the source code for android.media AudioTrack MODE_STREAM.

Click Source Link

Document

Creation mode where audio data is streamed from Java to the native layer as the audio is playing.

Usage

From source file:Main.java

public static AudioTrack createTrack(int samplingRate) {
    AudioTrack track = new AudioTrack(AudioManager.STREAM_MUSIC, samplingRate, AudioFormat.CHANNEL_OUT_STEREO,
            AudioFormat.ENCODING_DEFAULT, samplingRate, AudioTrack.MODE_STREAM);
    return track;
}

From source file:zlyh.dmitry.recaller.threading.PlayBlockThread.java

@Override
public void run() {
    AudioTrack audioTrack = null;/*from  ww  w  .  j  av  a  2  s  . co m*/
    FileInputStream in = null;

    try {
        File rawpcm = new File(path);
        if (!rawpcm.exists()) {
            this.interrupt();
        }

        togglePlaying(true);

        final int audioLength = (int) rawpcm.length();
        final int minBufferSize = AudioRecord.getMinBufferSize(RecordRunnable.frequency,
                AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
        audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, RecordRunnable.frequency,
                AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, minBufferSize,
                AudioTrack.MODE_STREAM);

        final int block = 256 * 1024;
        byte[] byteData = new byte[block];

        try {
            in = new FileInputStream(rawpcm);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            this.interrupt();
        }

        if (in != null) {
            try {
                int bytesread = 0;
                int offset;
                audioTrack.play();
                while (bytesread < audioLength && !isInterrupted()) {
                    offset = in.read(byteData, 0, block);
                    if (offset != -1) {
                        audioTrack.write(byteData, 0, offset);
                        bytesread += offset;
                    } else {
                        break;
                    }
                }
                in.close();

                togglePlaying(false);

                if (audioTrack.getState() == AudioTrack.PLAYSTATE_PLAYING) {
                    audioTrack.stop();
                }

                if (audioTrack.getState() == AudioTrack.STATE_INITIALIZED) {
                    audioTrack.release();
                }
            } catch (Exception e) {
                e.printStackTrace();
                try {
                    in.close();
                } catch (IOException e1) {
                    e1.printStackTrace();
                }

                if (audioTrack.getState() == AudioTrack.PLAYSTATE_PLAYING) {
                    audioTrack.stop();
                }
                if (audioTrack.getState() == AudioTrack.STATE_INITIALIZED) {
                    audioTrack.release();
                }
                togglePlaying(false);

            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        if (audioTrack != null) {
            if (audioTrack.getState() == AudioTrack.PLAYSTATE_PLAYING) {
                audioTrack.stop();
            }
            if (audioTrack.getState() == AudioTrack.STATE_INITIALIZED) {
                audioTrack.release();
            }
        }

        if (in != null) {
            try {
                in.close();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
        togglePlaying(false);

    }

}

From source file:com.n0n3m4.q3e.Q3ECallbackObj.java

public void init(int size) {
    if (mAudioTrack != null)
        return;/*  w  w w .ja  v a 2  s. c  o  m*/
    if ((Q3EUtils.q3ei.isQ3) || (Q3EUtils.q3ei.isRTCW) || (Q3EUtils.q3ei.isQ1) || (Q3EUtils.q3ei.isQ2))
        size /= 8;

    mAudioData = new byte[size];
    int sampleFreq = 44100;

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                                              |            .
                                              |            |
                        _________             |            |
                  _,.-'"         `"'-.._      :            |
              _,-'                      `-._.'             |
           _.'            OUYA               `.             '
      _.-.    _,+......__                           `.          .
    .'    `-"'           `"-.,-""--._                 \        /
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    `   ..                       +"  )  \                 \    /
    `.'  \          ,-"`-..    |       |                  \  /
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    |,.."--"""--..|    "    |    `""`.                     |
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    `.__.'                                 `._  /
                                   "' */

    int bufferSize = Math.max((Q3EUtils.isOuya) ? 0 : 3 * size, AudioTrack.getMinBufferSize(sampleFreq,
            AudioFormat.CHANNEL_CONFIGURATION_STEREO, AudioFormat.ENCODING_PCM_16BIT));
    mAudioTrack = new Q3EAudioTrack(AudioManager.STREAM_MUSIC, sampleFreq,
            AudioFormat.CHANNEL_CONFIGURATION_STEREO, AudioFormat.ENCODING_PCM_16BIT, bufferSize,
            AudioTrack.MODE_STREAM);
    mAudioTrack.play();
    long sleeptime = (size * 1000000000l) / (2 * 2 * sampleFreq);
    ScheduledThreadPoolExecutor stpe = new ScheduledThreadPoolExecutor(5);
    stpe.scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            if (reqThreadrunning) {
                Q3EJNI.requestAudioData();
            }
        }
    }, 0, sleeptime, TimeUnit.NANOSECONDS);
}

From source file:com.ibm.watson.developer_cloud.android.text_to_speech.v1.TTSUtility.java

private void initPlayer() {
    stopTtsPlayer();/*w  w w . java 2s  .co  m*/
    // IMPORTANT: minimum required buffer size for the successful creation of an AudioTrack instance in streaming mode.
    int bufferSize = AudioTrack.getMinBufferSize(sampleRate, AudioFormat.CHANNEL_OUT_MONO,
            AudioFormat.ENCODING_PCM_16BIT);

    synchronized (this) {
        audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, AudioFormat.CHANNEL_OUT_MONO,
                AudioFormat.ENCODING_PCM_16BIT, bufferSize, AudioTrack.MODE_STREAM);
        if (audioTrack != null)
            audioTrack.play();
    }
}

From source file:net.sf.asap.Player.java

public void run() {
    int config = info.getChannels() == 1 ? AudioFormat.CHANNEL_CONFIGURATION_MONO
            : AudioFormat.CHANNEL_CONFIGURATION_STEREO;
    int len = AudioTrack.getMinBufferSize(ASAP.SAMPLE_RATE, config, AudioFormat.ENCODING_PCM_8BIT);
    if (len < 16384)
        len = 16384;/*from   w  w  w. j a  v a2s  . c  om*/
    final byte[] buffer = new byte[len];
    audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, ASAP.SAMPLE_RATE, config,
            AudioFormat.ENCODING_PCM_8BIT, len, AudioTrack.MODE_STREAM);
    audioTrack.play();

    for (;;) {
        synchronized (this) {
            if (len < buffer.length || isPaused()) {
                try {
                    wait();
                } catch (InterruptedException ex) {
                }
            }
            if (stop) {
                audioTrack.stop();
                return;
            }
        }
        synchronized (asap) {
            len = asap.generate(buffer, buffer.length, ASAPSampleFormat.U8);
        }
        audioTrack.write(buffer, 0, len);
    }
}

From source file:com.example.rttytranslator.Dsp_service.java

public void startAudio() {
    if (!_enableDecoder)
        return;/*from w ww. j  ava  2s. c om*/

    //boolean mic = this.getPackageManager().hasSystemFeature(PackageManager.FEATURE_MICROPHONE);

    System.out.println("isRecording: " + isRecording);

    if (!isRecording) {
        isRecording = true;

        buffsize = AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_IN_MONO,
                AudioFormat.ENCODING_PCM_16BIT);
        buffsize = Math.max(buffsize, 3000);

        mRecorder = new AudioRecord(AudioSource.MIC, 8000, AudioFormat.CHANNEL_IN_MONO,
                AudioFormat.ENCODING_PCM_16BIT, buffsize);

        mPlayer = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_OUT_MONO,
                AudioFormat.ENCODING_PCM_16BIT, 2 * buffsize, AudioTrack.MODE_STREAM);

        if (enableEcho) {
            AudioManager manager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
            manager.setMode(AudioManager.MODE_IN_CALL);
            manager.setSpeakerphoneOn(true);
        }

        if (mRecorder.getState() != AudioRecord.STATE_INITIALIZED) {

            mRecorder = new AudioRecord(AudioSource.DEFAULT, 8000, AudioFormat.CHANNEL_IN_MONO,
                    AudioFormat.ENCODING_PCM_16BIT, buffsize);

        }

        mRecorder.startRecording();
        System.out.println("STARTING THREAD");
        Thread ct = new captureThread();

        ct.start();
    }
}

From source file:com.tt.engtrain.showcontent.ContentListItemActivity.java

@Override
protected void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_baselist);
    mSpeechEvaluator = SpeechEvaluator.createEvaluator(ContentListItemActivity.this, null);
    mToast = Toast.makeText(this, "", Toast.LENGTH_SHORT);
    int iMinBufSize = AudioTrack.getMinBufferSize(8000, AudioFormat.CHANNEL_CONFIGURATION_STEREO,
            AudioFormat.ENCODING_PCM_16BIT);
    audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_STEREO,
            AudioFormat.ENCODING_PCM_16BIT, iMinBufSize, AudioTrack.MODE_STREAM);
    mTts = SpeechSynthesizer.createSynthesizer(this, mTtsInitListener);
    initData();//from w w w.  j  a va 2  s.c o m
    initListView();
    // initspker();

}

From source file:com.xperia64.timidityae.Globals.java

public static void reloadSettings(Activity c, AssetManager assets) {

    prefs = PreferenceManager.getDefaultSharedPreferences(c);
    firstRun = prefs.getBoolean("tplusFirstRun", true);
    theme = Integer.parseInt(prefs.getString("fbTheme", "1"));
    showHiddenFiles = prefs.getBoolean("hiddenSwitch", false);
    defaultFolder = prefs.getString("defaultPath", Environment.getExternalStorageDirectory().getAbsolutePath());
    dataFolder = prefs.getString("dataDir", Environment.getExternalStorageDirectory() + "/TimidityAE/");
    manConfig = prefs.getBoolean("manualConfig", false);
    JNIHandler.currsamp = defSamp = Integer.parseInt(prefs.getString("tplusResamp", "0"));
    mono = Integer.parseInt(prefs.getString("sdlChanValue", "2"));
    sixteen = true;//prefs.getString("tplusBits", "16").equals("16");
    aRate = Integer.parseInt(prefs.getString("tplusRate",
            Integer.toString(AudioTrack.getNativeOutputSampleRate(AudioTrack.MODE_STREAM))));
    buff = Integer.parseInt(prefs.getString("tplusBuff", "192000"));
    showVideos = prefs.getBoolean("videoSwitch", true);
    shouldLolNag = prefs.getBoolean("shouldLolNag", true);
    keepWav = prefs.getBoolean("keepPartialWav", false);
    useDefaultBack = prefs.getBoolean("useDefBack", false);
    compressCfg = prefs.getBoolean("compressCfg", true);
    reShuffle = prefs.getBoolean("reShuffle", false);
    freeInsts = prefs.getBoolean("tplusUnload", true);
    preserveSilence = prefs.getBoolean("tplusSilKey", true);
    if (!onlyNative)
        nativeMidi = prefs.getBoolean("nativeMidiSwitch", false);
    else// www . jav  a  2 s  .c o m
        nativeMidi = true;

}

From source file:uk.co.armedpineapple.cth.SDLActivity.java

public static Object audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
    int channelConfig = isStereo ? AudioFormat.CHANNEL_OUT_STEREO : AudioFormat.CHANNEL_OUT_MONO;
    int audioFormat = is16Bit ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT;
    int frameSize = (isStereo ? 2 : 1) * (is16Bit ? 2 : 1);

    Log.v("SDL", "SDL audio: wanted " + (isStereo ? "stereo" : "mono") + " " + (is16Bit ? "16-bit" : "8-bit")
            + " " + (sampleRate / 1000f) + "kHz, " + desiredFrames + " frames buffer");

    // Let the user pick a larger buffer if they really want -- but ye
    // gods they probably shouldn't, the minimums are horrifyingly high
    // latency already
    desiredFrames = Math.max(desiredFrames,
            (AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat) + frameSize - 1) / frameSize);

    mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, channelConfig, audioFormat,
            desiredFrames * frameSize, AudioTrack.MODE_STREAM);

    audioStartThread();/*  w  w  w.  j a v  a  2  s  .co  m*/

    Log.v("SDL",
            "SDL audio: got " + ((mAudioTrack.getChannelCount() >= 2) ? "stereo" : "mono") + " "
                    + ((mAudioTrack.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) ? "16-bit" : "8-bit")
                    + " " + (mAudioTrack.getSampleRate() / 1000f) + "kHz, " + desiredFrames + " frames buffer");

    if (is16Bit) {
        audioBuffer = new short[desiredFrames * (isStereo ? 2 : 1)];
    } else {
        audioBuffer = new byte[desiredFrames * (isStereo ? 2 : 1)];
    }
    return audioBuffer;
}

From source file:net.sf.asap.PlayerService.java

public void run() {
    // read file//from   www . j  a va2 s  .co m
    String filename = uri.getPath();
    byte[] module = new byte[ASAPInfo.MAX_MODULE_LENGTH];
    int moduleLen;
    try {
        InputStream is;
        switch (uri.getScheme()) {
        case "file":
            if (Util.isZip(filename)) {
                String zipFilename = filename;
                filename = uri.getFragment();
                is = new ZipInputStream(zipFilename, filename);
            } else
                is = new FileInputStream(filename);
            break;
        case "http":
            is = httpGet(uri);
            break;
        default:
            throw new FileNotFoundException(uri.toString());
        }
        moduleLen = Util.readAndClose(is, module);
    } catch (IOException ex) {
        showError(R.string.error_reading_file);
        return;
    }

    // load file
    try {
        asap.load(filename, module, moduleLen);
        info = asap.getInfo();
        switch (song) {
        case SONG_DEFAULT:
            song = info.getDefaultSong();
            break;
        case SONG_LAST:
            song = info.getSongs() - 1;
            break;
        default:
            break;
        }
        playSong();
    } catch (Exception ex) {
        showError(R.string.invalid_file);
        return;
    }

    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, Player.class), 0);
    String title = info.getTitleOrFilename();
    Notification notification = new Notification(R.drawable.icon, title, System.currentTimeMillis());
    notification.flags |= Notification.FLAG_ONGOING_EVENT;
    notification.setLatestEventInfo(this, title, info.getAuthor(), contentIntent);
    startForegroundCompat(NOTIFICATION_ID, notification);

    // playback
    int channelConfig = info.getChannels() == 1 ? AudioFormat.CHANNEL_CONFIGURATION_MONO
            : AudioFormat.CHANNEL_CONFIGURATION_STEREO;
    int bufferLen = AudioTrack.getMinBufferSize(ASAP.SAMPLE_RATE, channelConfig,
            AudioFormat.ENCODING_PCM_16BIT) >> 1;
    if (bufferLen < 16384)
        bufferLen = 16384;
    final byte[] byteBuffer = new byte[bufferLen << 1];
    final short[] shortBuffer = new short[bufferLen];
    audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, ASAP.SAMPLE_RATE, channelConfig,
            AudioFormat.ENCODING_PCM_16BIT, bufferLen << 1, AudioTrack.MODE_STREAM);
    audioTrack.play();

    for (;;) {
        synchronized (this) {
            if (bufferLen < shortBuffer.length || isPaused()) {
                try {
                    wait();
                } catch (InterruptedException ex) {
                }
            }
            if (stop) {
                audioTrack.stop();
                return;
            }
        }
        synchronized (asap) {
            int pos = seekPosition;
            if (pos >= 0) {
                seekPosition = -1;
                try {
                    asap.seek(pos);
                } catch (Exception ex) {
                }
            }
            bufferLen = asap.generate(byteBuffer, byteBuffer.length, ASAPSampleFormat.S16_L_E) >> 1;
        }
        for (int i = 0; i < bufferLen; i++)
            shortBuffer[i] = (short) ((byteBuffer[i << 1] & 0xff) | byteBuffer[i << 1 | 1] << 8);
        audioTrack.write(shortBuffer, 0, bufferLen);
    }
}

Example usage for android.media AudioTrack MODE_STREAM

Introduction

Prototype

Document

Usage