X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsonitus%2Fdata%2Fsink%2FAudioSink.java;h=b0f00678c8866e36e68f1f9b5fbc1f5e3d19e991;hb=d07ec839a266057079d5a065176d46a0cc567b5d;hp=f80113bd818707b4cd813da11c0b5e66e951cd81;hpb=0018cc5096b9f8c8c762221bad57a1c1cb8dd3de;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 f80113b..b0f0067 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 +17,30 @@
 
 package net.pterodactylus.sonitus.data.sink;
 
+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.FloatControl;
 import javax.sound.sampled.LineUnavailableException;
 import javax.sound.sampled.SourceDataLine;
 
+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 JDK’s {@link AudioSystem} to play
@@ -41,12 +53,97 @@ public class AudioSink 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 “mute” 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) {
+				if (sourceDataLine != null) {
+					FloatControl volumeControl = (FloatControl) sourceDataLine.getControl(VOLUME);
+					volumeControl.setValue((float) (value * volumeControl.getMaximum()));
+				}
+			}
+		};
+		muteSwitch = new Switch("Mute") {
+
+			private float previousValue;
+
+			@Override
+			protected void valueSet(Boolean value) {
+				if (sourceDataLine != null) {
+					FloatControl volumeControl = (FloatControl) sourceDataLine.getControl(VOLUME);
+					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<Controller<?>> controllers() {
+		return Arrays.<Controller<?>>asList(volumeFader, muteSwitch);
+	}
+
 	//
 	// SINK METHODS
 	//
@@ -59,6 +156,7 @@ public class AudioSink implements Sink {
 			sourceDataLine = AudioSystem.getSourceDataLine(audioFormat);
 			sourceDataLine.open(audioFormat);
 			sourceDataLine.start();
+			metadataUpdated(metadata);
 		} catch (LineUnavailableException e) {
 			/* TODO */
 			throw new IOException(e);
@@ -74,11 +172,13 @@ public class AudioSink implements Sink {
 	@Override
 	public void metadataUpdated(Metadata metadata) {
 		logger.info(String.format("Now playing %s.", metadata));
+		this.metadata = 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));
 	}