/**
* Initializes the basic audio track to be able to playback.
*
* @param sampleRate The sample rate of the track
* @param numChannels The number of channels available in the track.
*/
private void initDevice(int sampleRate, int numChannels) throws IOException {
L.d(TAG, "initDevice called in state:" + state);
lock.lock();
try {
final int format = findFormatFromChannels(numChannels);
final int minSize =
AudioTrack.getMinBufferSize(sampleRate, format, AudioFormat.ENCODING_PCM_16BIT);
if (minSize == AudioTrack.ERROR || minSize == AudioTrack.ERROR_BAD_VALUE) {
L.e(TAG, "minSize=" + minSize);
throw new IOException("getMinBufferSize returned " + minSize);
}
track =
new AudioTrack(
AudioManager.STREAM_MUSIC,
sampleRate,
format,
AudioFormat.ENCODING_PCM_16BIT,
minSize * 4,
AudioTrack.MODE_STREAM);
sonic = new Sonic(sampleRate, numChannels);
} finally {
lock.unlock();
}
}
@Override
public void reset() {
L.v(TAG, "reset called in state: " + state);
stayAwake(false);
lock.lock();
try {
continuing = false;
try {
if (state != State.PLAYBACK_COMPLETED) {
while (isDecoding) {
synchronized (decoderLock) {
decoderLock.notify();
decoderLock.wait();
}
}
}
} catch (InterruptedException e) {
L.e(TAG, "Interrupted in reset while waiting for decoder thread to stop.", e);
}
if (codec != null) {
codec.release();
L.d(TAG, "releasing codec");
codec = null;
}
if (extractor != null) {
extractor.release();
extractor = null;
}
if (track != null) {
track.release();
track = null;
}
state = State.IDLE;
L.d(TAG, "State changed to: " + state);
} finally {
lock.unlock();
}
}
private void error(String methodName) {
L.e(TAG, "Error in " + methodName + " at state=" + state);
state = State.ERROR;
stayAwake(false);
}