X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsonitus%2Fdata%2Fsink%2FAudioSink.java;h=05253f37a03b6ee244b29d2aaf6591db9cbdc6f3;hb=f554e51504f7e39e658a84d79c041e0b0d8a6393;hp=fc4c60cd39e8b4bf058beffbfff881a6566dd7d2;hpb=a97335e5b42b4f3a9a7e3c8481675c117dffdd07;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 fc4c60c..05253f3 100644
--- a/src/main/java/net/pterodactylus/sonitus/data/sink/AudioSink.java
+++ b/src/main/java/net/pterodactylus/sonitus/data/sink/AudioSink.java
@@ -17,16 +17,26 @@
 
 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.io.IntegralWriteOutputStream;
 
 import com.google.common.base.Preconditions;
 
@@ -41,12 +51,92 @@ public class AudioSink implements Sink {
 	/** The logger. */
 	private static final Logger logger = Logger.getLogger(AudioSink.class.getName());
 
+	/** 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. */
+	public AudioSink() {
+		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
+	//
+
 	@Override
 	public void open(Metadata metadata) throws IOException {
 		Preconditions.checkArgument(metadata.encoding().equalsIgnoreCase("PCM"), "source must be PCM-encoded");
@@ -69,12 +159,13 @@ public class AudioSink implements Sink {
 
 	@Override
 	public void metadataUpdated(Metadata metadata) {
-		/* ignore. */
+		logger.info(String.format("Now playing %s.", metadata));
+		this.metadata = 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));
 	}