X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsonitus%2Fdata%2Fsink%2FAudioSink.java;h=7c28f2c620544c3fd802fe2683726dbd1a435c31;hb=87436ac0b103a112722c1df835e11ec928e57d38;hp=9bbf6a3a96275e45fa1e67b571c2cb100dca0e4d;hpb=8f705c4b511478bdd49fa3b9ab0f01923aafbab5;p=sonitus.git
diff --git a/src/main/java/net/pterodactylus/sonitus/data/sink/AudioSink.java b/src/main/java/net/pterodactylus/sonitus/data/sink/AudioSink.java
index 9bbf6a3..7c28f2c 100644
--- a/src/main/java/net/pterodactylus/sonitus/data/sink/AudioSink.java
+++ b/src/main/java/net/pterodactylus/sonitus/data/sink/AudioSink.java
@@ -17,18 +17,35 @@
package net.pterodactylus.sonitus.data.sink;
+import static javax.sound.sampled.BooleanControl.Type.MUTE;
+import static javax.sound.sampled.FloatControl.Type.VOLUME;
+
import java.io.IOException;
+import java.io.OutputStream;
+import java.util.Arrays;
+import java.util.List;
import java.util.logging.Logger;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.BooleanControl;
+import javax.sound.sampled.Control;
+import javax.sound.sampled.DataLine;
+import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
+import net.pterodactylus.sonitus.data.AbstractControlledComponent;
+import net.pterodactylus.sonitus.data.Controller;
import net.pterodactylus.sonitus.data.Metadata;
import net.pterodactylus.sonitus.data.Sink;
import net.pterodactylus.sonitus.data.Source;
+import net.pterodactylus.sonitus.data.controller.Fader;
+import net.pterodactylus.sonitus.data.controller.Switch;
+import net.pterodactylus.sonitus.data.event.MetadataUpdated;
+import net.pterodactylus.sonitus.io.IntegralWriteOutputStream;
import com.google.common.base.Preconditions;
+import com.google.common.eventbus.EventBus;
/**
* {@link Sink} implementation that uses the JDKâs {@link AudioSystem} to play
@@ -36,17 +53,119 @@ import com.google.common.base.Preconditions;
*
* @author David âBombeâ Roden
*/
-public class AudioSink implements Sink {
+public class AudioSink extends AbstractControlledComponent implements Sink {
/** The logger. */
private static final Logger logger = Logger.getLogger(AudioSink.class.getName());
+ /** The event bus. */
+ private final EventBus eventBus;
+
+ /** The volume fader. */
+ private final Fader volumeFader;
+
+ /** The âmuteâ switch. */
+ private final Switch muteSwitch;
+
/** The current metadata. */
private Metadata metadata;
/** The audio output. */
private SourceDataLine sourceDataLine;
+ /** A buffered output stream to ensure correct writing to the source data line. */
+ private OutputStream sourceDataLineOutputStream = new IntegralWriteOutputStream(new OutputStream() {
+
+ @Override
+ public void write(int b) throws IOException {
+ }
+
+ @Override
+ public void write(byte[] b) throws IOException {
+ write(b, 0, b.length);
+ }
+
+ @Override
+ public void write(byte[] b, int off, int len) throws IOException {
+ if (sourceDataLine != null) {
+ sourceDataLine.write(b, off, len);
+ }
+ }
+ }, 1024);
+
+ /**
+ * Creates a new audio sink.
+ *
+ * @param eventBus
+ * The event bus
+ */
+ public AudioSink(EventBus eventBus) {
+ this.eventBus = eventBus;
+ volumeFader = new Fader("Volume") {
+
+ @Override
+ protected void valueSet(Double value) {
+ /* search for preferred volume control. */
+ FloatControl volumeControl = getVolumeControl(sourceDataLine);
+ if (volumeControl == null) {
+ /* could not find volume control! */
+ return;
+ }
+
+ volumeControl.setValue((float) (value * volumeControl.getMaximum()));
+ }
+ };
+ muteSwitch = new Switch("Mute") {
+
+ /** The previous value in case we have to emulate the mute control. */
+ private float previousValue;
+
+ @Override
+ protected void valueSet(Boolean value) {
+ /* search for mute control. */
+ BooleanControl muteControl = getMuteControl(sourceDataLine);
+ if (muteControl != null) {
+ muteControl.setValue(value);
+ return;
+ }
+
+ /* could not find mute control, use volume control! */
+ FloatControl volumeControl = getVolumeControl(sourceDataLine);
+ if (volumeControl == null) {
+ /* no volume control, either? */
+ return;
+ }
+
+ if (value) {
+ previousValue = volumeControl.getValue();
+ volumeControl.setValue(0);
+ } else {
+ volumeControl.setValue(previousValue);
+ }
+ }
+
+ };
+ }
+
+ //
+ // CONTROLLED METHODS
+ //
+
+ @Override
+ public String name() {
+ return "Audio Output";
+ }
+
+ @Override
+ public Metadata metadata() {
+ return metadata;
+ }
+
+ @Override
+ public List> controllers() {
+ return Arrays.>asList(volumeFader, muteSwitch);
+ }
+
//
// SINK METHODS
//
@@ -59,8 +178,10 @@ public class AudioSink implements Sink {
sourceDataLine = AudioSystem.getSourceDataLine(audioFormat);
sourceDataLine.open(audioFormat);
sourceDataLine.start();
+ metadataUpdated(metadata);
} catch (LineUnavailableException e) {
/* TODO */
+ sourceDataLine = null;
throw new IOException(e);
}
}
@@ -73,13 +194,69 @@ public class AudioSink implements Sink {
@Override
public void metadataUpdated(Metadata metadata) {
- /* ignore. */
+ logger.info(String.format("Now playing %s.", metadata));
+ this.metadata = metadata;
+ fireMetadataUpdated(metadata);
+ eventBus.post(new MetadataUpdated(this, metadata));
}
@Override
- public void process(byte[] buffer) {
- sourceDataLine.write(buffer, 0, buffer.length);
+ public void process(byte[] buffer) throws IOException {
+ sourceDataLineOutputStream.write(buffer);
logger.finest(String.format("AudioSink: Wrote %d Bytes.", buffer.length));
}
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Returns the {@link FloatControl.Type.VOLUME} control.
+ *
+ * @param dataLine
+ * The data line to search for the control
+ * @return The control, or {@code null} if no volume control could be found
+ */
+ private static FloatControl getVolumeControl(DataLine dataLine) {
+ return getControl(dataLine, VOLUME, FloatControl.class);
+ }
+
+ /**
+ * Returns the {@link BooleanControl.Type.MUTE} control.
+ *
+ * @param dataLine
+ * The data line to search for the control
+ * @return The control, or {@code null} if no mute control could be found
+ */
+ private static BooleanControl getMuteControl(DataLine dataLine) {
+ return getControl(dataLine, MUTE, BooleanControl.class);
+ }
+
+ /**
+ * Searches the given data line for a control of the given type and returns it.
+ * If the given data line is {@code null}, {@code null} is returned.
+ *
+ * @param dataLine
+ * The data line to search for a control
+ * @param controlType
+ * The type of the control to search
+ * @param controlClass
+ * The class of the control
+ * @param
+ * The class of the control
+ * @return The control, or {@code null} if no control could be found
+ */
+ private static T getControl(DataLine dataLine, Control.Type controlType, Class controlClass) {
+ if (dataLine == null) {
+ return null;
+ }
+ Control[] controls = dataLine.getControls();
+ for (Control control : controls) {
+ if (control.getType().equals(controlType)) {
+ return (T) control;
+ }
+ }
+ return null;
+ }
+
}