kopia lustrzana https://github.com/sh123/codec2_talkie
194 wiersze
6.6 KiB
Java
194 wiersze
6.6 KiB
Java
package com.radio.codec2talkie.transport;
|
|
|
|
import android.content.Context;
|
|
import android.content.SharedPreferences;
|
|
import android.media.AudioAttributes;
|
|
import android.media.AudioFormat;
|
|
import android.media.AudioRecord;
|
|
import android.media.AudioTrack;
|
|
import android.media.MediaRecorder;
|
|
import android.os.Process;
|
|
import android.util.Log;
|
|
|
|
import androidx.preference.PreferenceManager;
|
|
|
|
import com.radio.codec2talkie.rigctl.RigCtl;
|
|
import com.radio.codec2talkie.rigctl.RigCtlFactory;
|
|
import com.radio.codec2talkie.settings.PreferenceKeys;
|
|
|
|
import java.io.IOException;
|
|
import java.nio.BufferOverflowException;
|
|
import java.nio.ShortBuffer;
|
|
import java.util.Timer;
|
|
import java.util.TimerTask;
|
|
|
|
public class SoundModemBase implements Runnable {
|
|
|
|
private static final String TAG = SoundModemBase.class.getSimpleName();
|
|
|
|
protected String _name;
|
|
protected Context _context;
|
|
protected SharedPreferences _sharedPreferences;
|
|
|
|
protected AudioTrack _systemAudioPlayer;
|
|
protected AudioRecord _systemAudioRecorder;
|
|
|
|
protected boolean _isRunning = true;
|
|
|
|
private final RigCtl _rigCtl;
|
|
private Timer _pttOffTimer;
|
|
private boolean _isPttOn;
|
|
private final int _pttOffDelayMs;
|
|
|
|
protected final ShortBuffer _recordAudioSampleBuffer;
|
|
|
|
protected final boolean _isLoopback;
|
|
|
|
public SoundModemBase(Context context, int sampleRate) {
|
|
_name = "SoundModem";
|
|
_isPttOn = false;
|
|
_context = context;
|
|
|
|
_sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
|
|
|
|
boolean disableRx = _sharedPreferences.getBoolean(PreferenceKeys.PORTS_SOUND_MODEM_DISABLE_RX, false);
|
|
_pttOffDelayMs = Integer.parseInt(_sharedPreferences.getString(PreferenceKeys.PORTS_SOUND_MODEM_PTT_OFF_DELAY_MS, "1000"));
|
|
_isLoopback = _sharedPreferences.getBoolean(PreferenceKeys.PORTS_SOUND_MODEM_LOOPBACK, false);
|
|
if (_isLoopback) _name += "_";
|
|
|
|
constructSystemAudioDevices(disableRx, sampleRate);
|
|
|
|
_rigCtl = RigCtlFactory.create(context);
|
|
try {
|
|
_rigCtl.initialize(TransportFactory.create(TransportFactory.TransportType.USB, context), context, null);
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
Log.e(TAG, "Failed to initialize RigCtl");
|
|
}
|
|
|
|
_recordAudioSampleBuffer = ShortBuffer.allocate(_isLoopback ? 1024*100 : 1024*10);
|
|
|
|
if (!disableRx && !_isLoopback)
|
|
new Thread(this).start();
|
|
}
|
|
|
|
private void constructSystemAudioDevices(boolean disableRx, int sampleRate) {
|
|
int audioRecorderMinBufferSize = 10 * AudioRecord.getMinBufferSize(
|
|
sampleRate,
|
|
AudioFormat.CHANNEL_IN_MONO,
|
|
AudioFormat.ENCODING_PCM_16BIT);
|
|
|
|
int audioSource = MediaRecorder.AudioSource.VOICE_RECOGNITION;
|
|
_systemAudioRecorder = new AudioRecord(
|
|
audioSource,
|
|
sampleRate,
|
|
AudioFormat.CHANNEL_IN_MONO,
|
|
AudioFormat.ENCODING_PCM_16BIT,
|
|
audioRecorderMinBufferSize);
|
|
|
|
int audioPlayerMinBufferSize = 10 * AudioTrack.getMinBufferSize(
|
|
sampleRate,
|
|
AudioFormat.CHANNEL_OUT_MONO,
|
|
AudioFormat.ENCODING_PCM_16BIT);
|
|
|
|
if (!disableRx)
|
|
_systemAudioRecorder.startRecording();
|
|
|
|
int usage = AudioAttributes.USAGE_MEDIA;
|
|
_systemAudioPlayer = new AudioTrack.Builder()
|
|
.setAudioAttributes(new AudioAttributes.Builder()
|
|
.setUsage(usage)
|
|
.setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
|
|
.build())
|
|
.setAudioFormat(new AudioFormat.Builder()
|
|
.setEncoding(AudioFormat.ENCODING_PCM_16BIT)
|
|
.setSampleRate(sampleRate)
|
|
.setChannelMask(AudioFormat.CHANNEL_OUT_MONO)
|
|
.build())
|
|
.setTransferMode(AudioTrack.MODE_STREAM)
|
|
.setBufferSizeInBytes(audioPlayerMinBufferSize)
|
|
.build();
|
|
_systemAudioPlayer.setVolume(AudioTrack.getMaxVolume());
|
|
|
|
Log.i(TAG, "Play buffer size " + audioPlayerMinBufferSize + ", recorder " + audioRecorderMinBufferSize);
|
|
}
|
|
|
|
protected int read(short[] sampleBuffer, int samplesToRead) {
|
|
synchronized (_recordAudioSampleBuffer) {
|
|
if (_recordAudioSampleBuffer.position() >= samplesToRead) {
|
|
_recordAudioSampleBuffer.flip();
|
|
_recordAudioSampleBuffer.get(sampleBuffer, 0, samplesToRead);
|
|
_recordAudioSampleBuffer.compact();
|
|
return samplesToRead;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
Log.i(TAG, "Starting receive thread");
|
|
android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_URGENT_AUDIO);
|
|
int readSize = 32;
|
|
short [] sampleBuf = new short[readSize];
|
|
while (_isRunning) {
|
|
int readCnt = _systemAudioRecorder.read(sampleBuf, 0, readSize);
|
|
if (readCnt != readSize) {
|
|
Log.w(TAG, "" + readCnt + " != " + readSize);
|
|
continue;
|
|
}
|
|
synchronized (_recordAudioSampleBuffer) {
|
|
for (short sample : sampleBuf) {
|
|
try {
|
|
_recordAudioSampleBuffer.put(sample);
|
|
} catch (BufferOverflowException e) {
|
|
// user is probably transmitting and cannot consume, just discard
|
|
_recordAudioSampleBuffer.clear();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
protected void stop() {
|
|
Log.i(TAG, "stop()");
|
|
_isRunning = false;
|
|
_systemAudioRecorder.stop();
|
|
_systemAudioPlayer.stop();
|
|
_systemAudioRecorder.release();
|
|
_systemAudioPlayer.release();
|
|
}
|
|
|
|
protected void pttOn() {
|
|
if (_isPttOn) return;
|
|
|
|
try {
|
|
_rigCtl.pttOn();
|
|
_isPttOn = true;
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
protected void pttOff() {
|
|
if (!_isPttOn) return;
|
|
if (_pttOffTimer != null) {
|
|
_pttOffTimer.cancel();
|
|
_pttOffTimer.purge();
|
|
_pttOffTimer = null;
|
|
}
|
|
_pttOffTimer = new Timer();
|
|
_pttOffTimer.schedule(new TimerTask() {
|
|
@Override
|
|
public void run() {
|
|
try {
|
|
_rigCtl.pttOff();
|
|
_isPttOn = false;
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
}, _pttOffDelayMs);
|
|
}
|
|
}
|