public short[] decode_frame(byte[] bytes) {
try {
_spxd.processData(bytes, 0, bytes.length);
} catch (StreamCorruptedException ex) {
Log.error("Speex Decoder error " + ex.getMessage());
}
short audioOut[] = new short[_aframesz];
int decsize = _spxd.getProcessedData(audioOut, 0);
return audioOut;
}
@Override
public void run() {
try {
DatagramSocket dsocket = new DatagramSocket(portServer);
DatagramSocket ssocket = new DatagramSocket();
byte[] buffer = new byte[1024];
DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
SpeexDecoder speexDecoder = new SpeexDecoder();
speexDecoder.init(0, 8000, 1, false);
ByteBuffer storeBuffer = ByteBuffer.allocate(115000);
int arrayLength;
do {
dsocket.receive(packet);
arrayLength = packet.getLength();
speexDecoder.processData(packet.getData(), 0, packet.getData().length);
byte data[] = new byte[speexDecoder.getProcessedDataByteSize()];
speexDecoder.getProcessedData(data, 0);
System.out.println("Data length: " + data.length);
storeBuffer.put(data);
if (storeBuffer.position() > 114000) {
String host = Mapping.getDestination(packet.getAddress().toString().substring(1));
System.out.println("Client IP : " + packet.getAddress().toString());
AudioInputStream stream = AudioUtils.soundBytesToAudio(storeBuffer.array());
storeBuffer.clear();
String fileName = "./resources/tmp/" + NameGenerator.getName() + ".wav";
AudioUtils.saveAudioStreamToFile(stream, fileName);
stream.close();
String[] result = RecognitionEngine.recogniseAudio(fileName);
ssocket.send(
new DatagramPacket(
result[0].getBytes(),
result[0].getBytes().length,
InetAddress.getByName(host),
portClient));
}
} while (arrayLength > 0);
} catch (IOException e) {
e.printStackTrace();
}
}
public SpeexCodec(boolean wide) {
_speexmode = wide ? 1 : 0;
_sampleRate = wide ? 16000 : 8000;
_iaxcn = wide ? CodecFace.AUDIO_SPEEX16 : CodecFace.AUDIO_SPEEX;
_name = wide ? "SPEEX" : "SPEEX";
_spxe = new SpeexEncoder();
int q = wide ? 7 : 3;
_spxe.init(_speexmode, q, _sampleRate, 1); // _mode, _quality, _sampleRate, _channels);
_spxe.getEncoder().setComplexity(2);
Log.debug(
"Speex mode "
+ _spxe.getEncoder().getMode()
+ " encoder configured with rate ="
+ _spxe.getEncoder().getSamplingRate()
+ " Quality ="
+ q
+ " compexity = "
+ _spxe.getEncoder().getComplexity()
+ " packet size = "
+ _spxe.getEncoder().getEncodedFrameSize() / 8
+ " bitrate = "
+ _spxe.getEncoder().getBitRate() / 1024.0);
_spxd = new SpeexDecoder();
_spxd.init(_speexmode, _sampleRate, 1, false); // _mode, _sampleRate, _channels, false);
_aframesz = wide ? 320 : 160; // number of shorts in an audio frame;
}