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initial contribution of Sonos AudioSink support (#2306)
* initial contribution of Sonos AudioSink support Signed-off-by: Kai Kreuzer <kai@openhab.org> * fix NPEs Signed-off-by: Kai Kreuzer <kai@openhab.org>
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...ding.sonos/src/main/java/org/eclipse/smarthome/binding/sonos/internal/SonosAudioSink.java
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| /** | ||
| * Copyright (c) 2014-2016 by the respective copyright holders. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v10.html | ||
| */ | ||
| package org.eclipse.smarthome.binding.sonos.internal; | ||
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| import java.io.IOException; | ||
| import java.util.HashSet; | ||
| import java.util.Locale; | ||
| import java.util.Set; | ||
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| import org.eclipse.smarthome.binding.sonos.handler.ZonePlayerHandler; | ||
| import org.eclipse.smarthome.core.audio.AudioFormat; | ||
| import org.eclipse.smarthome.core.audio.AudioHTTPServer; | ||
| import org.eclipse.smarthome.core.audio.AudioSink; | ||
| import org.eclipse.smarthome.core.audio.AudioStream; | ||
| import org.eclipse.smarthome.core.audio.FixedLengthAudioStream; | ||
| import org.eclipse.smarthome.core.audio.URLAudioStream; | ||
| import org.eclipse.smarthome.core.audio.UnsupportedAudioFormatException; | ||
| import org.eclipse.smarthome.core.library.types.PercentType; | ||
| import org.eclipse.smarthome.core.library.types.StringType; | ||
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| /** | ||
| * This makes a Sonos speaker to serve as an {@link AudioSink}- | ||
| * | ||
| * @author Kai Kreuzer - Initial contribution and API | ||
| * | ||
| */ | ||
| public class SonosAudioSink implements AudioSink { | ||
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| private static HashSet<AudioFormat> supportedFormats = new HashSet<>(); | ||
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| static { | ||
| supportedFormats.add(AudioFormat.WAV); | ||
| supportedFormats.add(AudioFormat.MP3); | ||
| } | ||
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| private AudioHTTPServer audioHTTPServer; | ||
| private ZonePlayerHandler handler; | ||
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| public SonosAudioSink(ZonePlayerHandler handler, AudioHTTPServer audioHTTPServer) { | ||
| this.handler = handler; | ||
| this.audioHTTPServer = audioHTTPServer; | ||
| } | ||
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| @Override | ||
| public String getId() { | ||
| return handler.getThing().getUID().toString(); | ||
| } | ||
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| @Override | ||
| public String getLabel(Locale locale) { | ||
| return handler.getThing().getLabel(); | ||
| } | ||
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| @Override | ||
| public void process(AudioStream audioStream) throws UnsupportedAudioFormatException { | ||
| if (audioStream instanceof URLAudioStream) { | ||
| // it is an external URL, the speaker can access it itself and play it. | ||
| URLAudioStream urlAudioStream = (URLAudioStream) audioStream; | ||
| handler.playURI(new StringType(urlAudioStream.getURL())); | ||
| try { | ||
| audioStream.close(); | ||
| } catch (IOException e) { | ||
| } | ||
| } else { | ||
| // we serve it on our own HTTP server and treat it as a notification | ||
| if (!(audioStream instanceof FixedLengthAudioStream)) { | ||
| // Note that we have to pass a FixedLengthAudioStream, since Sonos does multiple concurrent requests to | ||
| // the AudioServlet, so a one time serving won't work. | ||
| throw new UnsupportedAudioFormatException("Sonos can only handle FixedLengthAudioStreams.", null); | ||
| // TODO: Instead of throwing an exception, we could ourselves try to wrap it into a | ||
| // FixedLengthAudioStream, but this might be dangerous as we have no clue, how much data to expect from | ||
| // the stream. | ||
| } else { | ||
| String url = audioHTTPServer.serve((FixedLengthAudioStream) audioStream, 10).toString(); | ||
| AudioFormat format = audioStream.getFormat(); | ||
| if (AudioFormat.WAV.isCompatible(format)) { | ||
| handler.playNotificationSoundURI(new StringType(url + ".wav")); | ||
| } else if (AudioFormat.MP3.isCompatible(format)) { | ||
| handler.playNotificationSoundURI(new StringType(url + ".mp3")); | ||
| } else { | ||
| throw new UnsupportedAudioFormatException("Sonos only supports MP3 or WAV.", format); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public Set<AudioFormat> getSupportedFormats() { | ||
| return supportedFormats; | ||
| } | ||
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| @Override | ||
| public PercentType getVolume() { | ||
| return handler.getNotificationSoundVolume(); | ||
| } | ||
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| @Override | ||
| public void setVolume(PercentType volume) { | ||
| handler.setNotificationSoundVolume(volume); | ||
| } | ||
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| } |
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