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

Example 66 with AudioTrack

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

the class MediaAudioTrackTest method testSetPlaybackHeadPositionStopped.

//Test case 2: setPlaybackHeadPosition() on stopped track
@LargeTest
public void testSetPlaybackHeadPositionStopped() throws Exception {
    // constants for test
    final String TEST_NAME = "testSetPlaybackHeadPositionStopped";
    final int TEST_SR = 22050;
    final int TEST_CONF = AudioFormat.CHANNEL_OUT_MONO;
    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, 2 * minBuffSize, TEST_MODE);
    byte[] data = new byte[minBuffSize];
    //--------    test        --------------
    assumeTrue(TEST_NAME, track.getState() == AudioTrack.STATE_INITIALIZED);
    track.write(data, 0, data.length);
    track.write(data, 0, data.length);
    track.play();
    track.stop();
    assumeTrue(TEST_NAME, track.getPlayState() == AudioTrack.PLAYSTATE_STOPPED);
    assertTrue(TEST_NAME, track.setPlaybackHeadPosition(10) == AudioTrack.SUCCESS);
    //-------- tear down      --------------
    track.release();
}

Example 67 with AudioTrack

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

the class MediaAudioTrackTest method testWriteByteNegativeSize.

//Test case 7: write() fails with negative size
@LargeTest
public void testWriteByteNegativeSize() throws Exception {
    // constants for test
    final String TEST_NAME = "testWriteByteNegativeSize";
    final int TEST_SR = 22050;
    final int TEST_CONF = AudioFormat.CHANNEL_OUT_MONO;
    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, 2 * minBuffSize, TEST_MODE);
    byte[] data = new byte[minBuffSize];
    //--------    test        --------------
    assumeTrue(TEST_NAME, track.getState() == AudioTrack.STATE_INITIALIZED);
    assertTrue(TEST_NAME, track.write(data, 0, -10) == AudioTrack.ERROR_BAD_VALUE);
    //-------- tear down      --------------
    track.release();
}

Example 68 with AudioTrack

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

the class AudioPolicy method createAudioTrackSource.

/**
     * Create an {@link AudioTrack} instance that is associated with the given {@link AudioMix}.
     * Audio buffers played through the created instance will be sent to the given mix
     * to be recorded through the recording APIs.
     * @param mix a non-null {@link AudioMix} instance whose routing flags was defined with
     *     {@link AudioMix#ROUTE_FLAG_LOOP_BACK}, previously added to this policy.
     * @return a new {@link AudioTrack} instance whose data format is the one defined in the
     *     {@link AudioMix}, or null if this policy was not successfully registered
     *     with {@link AudioManager#registerAudioPolicy(AudioPolicy)}.
     * @throws IllegalArgumentException
     */
@SystemApi
public AudioTrack createAudioTrackSource(AudioMix mix) throws IllegalArgumentException {
    if (!policyReadyToUse()) {
        Log.e(TAG, "Cannot create AudioTrack source for AudioMix");
        return null;
    }
    checkMixReadyToUse(mix, true);
    // create the AudioTrack, configured for loop back, using the same format as the mix
    AudioTrack at = new AudioTrack(new AudioAttributes.Builder().setUsage(AudioAttributes.USAGE_VIRTUAL_SOURCE).addTag(addressForTag(mix)).build(), mix.getFormat(), AudioTrack.getMinBufferSize(mix.getFormat().getSampleRate(), mix.getFormat().getChannelMask(), mix.getFormat().getEncoding()), AudioTrack.MODE_STREAM, AudioManager.AUDIO_SESSION_ID_GENERATE);
    return at;
}

Example 69 with AudioTrack

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

the class AudioPolicy method createAudioTrackSource.

/**
     * Create an {@link AudioTrack} instance that is associated with the given {@link AudioMix}.
     * Audio buffers played through the created instance will be sent to the given mix
     * to be recorded through the recording APIs.
     * @param mix a non-null {@link AudioMix} instance whose routing flags was defined with
     *     {@link AudioMix#ROUTE_FLAG_LOOP_BACK}, previously added to this policy.
     * @return a new {@link AudioTrack} instance whose data format is the one defined in the
     *     {@link AudioMix}, or null if this policy was not successfully registered
     *     with {@link AudioManager#registerAudioPolicy(AudioPolicy)}.
     * @throws IllegalArgumentException
     */
@SystemApi
public AudioTrack createAudioTrackSource(AudioMix mix) throws IllegalArgumentException {
    if (!policyReadyToUse()) {
        Log.e(TAG, "Cannot create AudioTrack source for AudioMix");
        return null;
    }
    checkMixReadyToUse(mix, true);
    // create the AudioTrack, configured for loop back, using the same format as the mix
    AudioTrack at = new AudioTrack(new AudioAttributes.Builder().setUsage(AudioAttributes.USAGE_VIRTUAL_SOURCE).addTag(addressForTag(mix)).build(), mix.getFormat(), AudioTrack.getMinBufferSize(mix.getFormat().getSampleRate(), mix.getFormat().getChannelMask(), mix.getFormat().getEncoding()), AudioTrack.MODE_STREAM, AudioManager.AUDIO_SESSION_ID_GENERATE);
    return at;
}

Example 70 with AudioTrack

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

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);
}