public void run() {
while (controller.okToRun) {
try {
recordControl.setRecordStream(bos);
capturePlayer.start();
recordControl.startRecord();
Thread.sleep(recordingTime);
recordControl.stopRecord();
recordControl.commit();
bos.flush();
// Insert the recorded data into the shared buffer.
buffer.insert(bos.toByteArray());
// Reset the ByteArrayOutputStream for reuse.
bos.reset();
} catch (InterruptedException e) {
// If Thread was interrupted, we just want to terminate.
// Close any open Players
// Do we need to do this if we set the threads to null
// from TunerMIDlet?
if (capturePlayer != null) {
capturePlayer.close();
}
} catch (Exception e) {
controller.showError(e.getMessage(), new FatalForm(controller));
}
}
}
/**
* Creates a new instance of Recorder
*
* @param buffer the shared Buffer.
* @param controller the controlling TunerMIDlet instance.
*/
public Recorder(Buffer buffer, TunerMIDlet controller) {
this.buffer = buffer;
this.controller = controller;
// Buffer filling time (s) is FFT length / sample rate (* 1000ms).
recordingTime = 1000 * controller.getSampleLength() / TunerMIDlet.RATE;
if (capturePlayer == null) {
try {
capturePlayer =
Manager.createPlayer("capture://audio?encoding=pcm&rate=" + TunerMIDlet.RATE);
capturePlayer.realize();
recordControl = (RecordControl) capturePlayer.getControl("RecordControl");
// Create the internal buffer for the recording
bos = new ByteArrayOutputStream(controller.getSampleLength());
} catch (Exception e) {
// No point continuing without a capturePlayer or recordControl so show fatal error.
controller.showError(e.getMessage(), new FatalForm(controller));
}
}
}