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

Example 16 with AudioTrack

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

the class MediaAudioTrackTest method testPlaybackHeadPositionAfterPause.

//Test case 4: getPlaybackHeadPosition() is > 0 after play(); pause();
@LargeTest
public void testPlaybackHeadPositionAfterPause() throws Exception {
    // constants for test
    final String TEST_NAME = "testPlaybackHeadPositionAfterPause";
    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.pause();
    int pos = track.getPlaybackHeadPosition();
    log(TEST_NAME, "position =" + pos);
    assertTrue(TEST_NAME, pos > 0);
    //-------- tear down      --------------
    track.release();
}

Example 17 with AudioTrack

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

the class MediaAudioTrackTest method testSetPlaybackRate.

//Test case 4: setPlaybackRate() with half the content rate returns SUCCESS
@LargeTest
public void testSetPlaybackRate() throws Exception {
    // constants for test
    final String TEST_NAME = "testSetPlaybackRate";
    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        --------------
    track.write(data, 0, data.length);
    track.write(data, 0, data.length);
    assumeTrue(TEST_NAME, track.getState() == AudioTrack.STATE_INITIALIZED);
    track.play();
    assertTrue(TEST_NAME, track.setPlaybackRate((int) (TEST_SR / 2)) == AudioTrack.SUCCESS);
    //-------- tear down      --------------
    track.release();
}

Example 18 with AudioTrack

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

the class MediaAudioTrackTest method testWriteShortSizeTooBig.

//Test case 4: write() fails when supplying less data (shorts) than declared
@LargeTest
public void testWriteShortSizeTooBig() throws Exception {
    // constants for test
    final String TEST_NAME = "testWriteShortSizeTooBig";
    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);
    short[] data = new short[minBuffSize / 2];
    //--------    test        --------------
    assumeTrue(TEST_NAME, track.getState() == AudioTrack.STATE_INITIALIZED);
    assertTrue(TEST_NAME, track.write(data, 0, data.length + 10) == AudioTrack.ERROR_BAD_VALUE);
    //-------- tear down      --------------
    track.release();
}

Example 19 with AudioTrack

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

the class MediaAudioTrackTest method testWriteShortNegativeSize.

//Test case 8: write() fails with negative size
@LargeTest
public void testWriteShortNegativeSize() throws Exception {
    // constants for test
    final String TEST_NAME = "testWriteShortNegativeSize";
    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);
    short[] data = new short[minBuffSize / 2];
    //--------    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 20 with AudioTrack

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

the class MediaAudioTrackTest method testSetStereoVolumeMin.

//Test case 2: setStereoVolume() with min volume returns SUCCESS
@LargeTest
public void testSetStereoVolumeMin() throws Exception {
    // constants for test
    final String TEST_NAME = "testSetStereoVolumeMin";
    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        --------------
    track.write(data, 0, data.length);
    track.write(data, 0, data.length);
    track.play();
    float minVol = AudioTrack.getMinVolume();
    assertTrue(TEST_NAME, track.setStereoVolume(minVol, minVol) == AudioTrack.SUCCESS);
    //-------- tear down      --------------
    track.release();
}