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package jogamp.opengl.util.av;
import java.util.Arrays;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.SourceDataLine;
public class JavaSoundAudioSink implements AudioSink {
// AudioFormat parameters
public static final int SAMPLE_RATE = 44100;
private static final int SAMPLE_SIZE = 16;
private static final int CHANNELS = 2;
private static final boolean SIGNED = true;
private static final boolean BIG_ENDIAN = false;
// Chunk of audio processed at one time
public static final int BUFFER_SIZE = 1000;
public static final int SAMPLES_PER_BUFFER = BUFFER_SIZE / 2;
// Sample time values
public static final double SAMPLE_TIME_IN_SECS = 1.0 / SAMPLE_RATE;
public static final double BUFFER_TIME_IN_SECS = SAMPLE_TIME_IN_SECS * SAMPLES_PER_BUFFER;
private static AudioFormat format;
private static DataLine.Info info;
private static SourceDataLine auline;
private static int bufferCount;
private static byte [] sampleData = new byte[BUFFER_SIZE];
private static boolean available;
static {
// Create the audio format we wish to use
format = new AudioFormat(SAMPLE_RATE, SAMPLE_SIZE, CHANNELS, SIGNED, BIG_ENDIAN);
// Create dataline info object describing line format
info = new DataLine.Info(SourceDataLine.class, format);
// Clear buffer initially
Arrays.fill(sampleData, (byte) 0);
try{
// Get line to write data to
auline = (SourceDataLine) AudioSystem.getLine(info);
auline.open(format);
auline.start();
System.out.println("JavaSound audio sink");
available=true;
} catch (Exception e) {
available=false;
}
}
public void writeData(byte[] sampleData, int data_size) {
int written = 0;
int len;
while (data_size > 0) {
len = auline.write(sampleData, written, data_size);
data_size -= len;
written += len;
}
}
public int getDataAvailable() {
return auline.available();
}
public boolean isDataAvailable(int data_size) {
return auline.available()>=data_size;
}
@Override
public boolean isAudioSinkAvailable() {
return available;
}
}
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