Examples with AudioTrack android.media.AudioTrack used on opensource projects

Example 1 with AudioTrack

use of android.media.AudioTrack in project actor-platform by actorapp.

the class OpusPlayerActor method onPlayMessage.

protected void onPlayMessage(String fileName, float seek) {
    if (state != STATE_NONE) {
        destroyPlayer();
    }
    state = STATE_NONE;
    currentFileName = fileName;
    int res = opusLib.openOpusFile(currentFileName);
    if (res == 0) {
        callback.onError(currentFileName);
        return;
    }
    duration = opusLib.getTotalPcmDuration();
    offset = 0;
    try {
        bufferSize = AudioTrack.getMinBufferSize(48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT);
        audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize, AudioTrack.MODE_STREAM);
        audioTrack.play();
    } catch (Exception e) {
        e.printStackTrace();
        destroyPlayer();
        callback.onError(currentFileName);
        return;
    }
    state = STATE_STARTED;
    if (seek != 0) {
        opusLib.seekOpusFile(seek);
    }
    callback.onStart(fileName);
    self().send(new Iterate());
}

Example 2 with AudioTrack

use of android.media.AudioTrack in project android_frameworks_base by ParanoidAndroid.

the class BlockingAudioTrack method createStreamingAudioTrack.

private AudioTrack createStreamingAudioTrack() {
    final int channelConfig = getChannelConfig(mChannelCount);
    int minBufferSizeInBytes = AudioTrack.getMinBufferSize(mSampleRateInHz, channelConfig, mAudioFormat);
    int bufferSizeInBytes = Math.max(MIN_AUDIO_BUFFER_SIZE, minBufferSizeInBytes);
    AudioTrack audioTrack = new AudioTrack(mStreamType, mSampleRateInHz, channelConfig, mAudioFormat, bufferSizeInBytes, AudioTrack.MODE_STREAM);
    if (audioTrack.getState() != AudioTrack.STATE_INITIALIZED) {
        Log.w(TAG, "Unable to create audio track.");
        audioTrack.release();
        return null;
    }
    mAudioBufferSize = bufferSizeInBytes;
    setupVolume(audioTrack, mVolume, mPan);
    return audioTrack;
}

Example 3 with AudioTrack

use of android.media.AudioTrack in project android_frameworks_base by ParanoidAndroid.

the class BlockingAudioTrack method waitAndRelease.

public void waitAndRelease() {
    AudioTrack track = null;
    synchronized (mAudioTrackLock) {
        track = mAudioTrack;
    }
    if (track == null) {
        if (DBG)
            Log.d(TAG, "Audio track null [duplicate call to waitAndRelease ?]");
        return;
    }
    // much point not doing that again.
    if (mBytesWritten < mAudioBufferSize && !mStopped) {
        if (DBG) {
            Log.d(TAG, "Stopping audio track to flush audio, state was : " + track.getPlayState() + ",stopped= " + mStopped);
        }
        mIsShortUtterance = true;
        track.stop();
    }
    // Block until the audio track is done only if we haven't stopped yet.
    if (!mStopped) {
        if (DBG)
            Log.d(TAG, "Waiting for audio track to complete : " + mAudioTrack.hashCode());
        blockUntilDone(mAudioTrack);
    }
    // it's safe to release at this point.
    if (DBG)
        Log.d(TAG, "Releasing audio track [" + track.hashCode() + "]");
    synchronized (mAudioTrackLock) {
        mAudioTrack = null;
    }
    track.release();
}

Example 4 with AudioTrack

use of android.media.AudioTrack in project android_frameworks_base by ParanoidAndroid.

the class MediaAudioEffectTest method test1_7AuxiliaryOnAudioTrack.

//Test case 1.7: test auxiliary effect attachement on AudioTrack
@LargeTest
public void test1_7AuxiliaryOnAudioTrack() throws Exception {
    boolean result = false;
    String msg = "test1_7AuxiliaryOnAudioTrack()";
    try {
        AudioTrack track = new AudioTrack(AudioManager.STREAM_MUSIC, 44100, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, AudioTrack.getMinBufferSize(44100, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT), AudioTrack.MODE_STREAM);
        assertNotNull(msg + ": could not create AudioTrack", track);
        AudioEffect effect = new AudioEffect(AudioEffect.EFFECT_TYPE_ENV_REVERB, AudioEffect.EFFECT_TYPE_NULL, 0, 0);
        track.attachAuxEffect(effect.getId());
        track.setAuxEffectSendLevel(1.0f);
        result = true;
        effect.release();
        track.release();
    } catch (IllegalArgumentException e) {
        msg = msg.concat(": Equalizer not found");
        loge(msg, ": Equalizer not found");
    } catch (UnsupportedOperationException e) {
        msg = msg.concat(": Effect library not loaded");
        loge(msg, ": Effect library not loaded");
    }
    assertTrue(msg, result);
}

Example 5 with AudioTrack

use of android.media.AudioTrack in project android_frameworks_base by ParanoidAndroid.

the class MediaAudioTrackTest method testPlaybackHeadPositionAfterFlush.

//Test case 3: getPlaybackHeadPosition() is 0 after flush();
@LargeTest
public void testPlaybackHeadPositionAfterFlush() throws Exception {
    // constants for test
    final String TEST_NAME = "testPlaybackHeadPositionAfterFlush";
    final int TEST_SR = 22050;
    final int TEST_CONF = AudioFormat.CHANNEL_OUT_STEREO;
    final int TEST_FORMAT = AudioFormat.ENCODING_PCM_16BIT;
    final int TEST_MODE = AudioTrack.MODE_STREAM;
    final int TEST_STREAM_TYPE = AudioManager.STREAM_MUSIC;
    //-------- initialization --------------
    int minBuffSize = AudioTrack.getMinBufferSize(TEST_SR, TEST_CONF, TEST_FORMAT);
    AudioTrack track = new AudioTrack(TEST_STREAM_TYPE, TEST_SR, TEST_CONF, TEST_FORMAT, minBuffSize, TEST_MODE);
    byte[] data = new byte[minBuffSize / 2];
    //--------    test        --------------
    assumeTrue(TEST_NAME, track.getState() == AudioTrack.STATE_INITIALIZED);
    track.write(data, 0, data.length);
    track.write(data, 0, data.length);
    track.play();
    Thread.sleep(100);
    track.stop();
    track.flush();
    log(TEST_NAME, "position =" + track.getPlaybackHeadPosition());
    assertTrue(TEST_NAME, track.getPlaybackHeadPosition() == 0);
    //-------- tear down      --------------
    track.release();
}