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   1 /**
   2  * Copyright (c) 2010-2020 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.voice.picotts.internal;
  14
  15 import java.util.Collections;
  16 import java.util.Locale;
  17 import java.util.Set;
  18 import java.util.stream.Collectors;
  19 import java.util.stream.Stream;
  20
  21 import org.openhab.core.audio.AudioException;
  22 import org.openhab.core.audio.AudioFormat;
  23 import org.openhab.core.audio.AudioStream;
  24 import org.openhab.core.voice.TTSException;
  25 import org.openhab.core.voice.TTSService;
  26 import org.openhab.core.voice.Voice;
  27 import org.osgi.service.component.annotations.Component;
  28
  29 /**
  30  * @author Florian Schmidt - Initial Contribution
  31  */
  32 @Component
  33 public class PicoTTSService implements TTSService {
  34     private final Set<Voice> voices = Stream
  35             .of(new PicoTTSVoice("de-DE"), new PicoTTSVoice("en-US"), new PicoTTSVoice("en-GB"),
  36                     new PicoTTSVoice("es-ES"), new PicoTTSVoice("fr-FR"), new PicoTTSVoice("it-IT"))
  37             .collect(Collectors.toSet());
  38
  39     private final Set<AudioFormat> audioFormats = Collections.singleton(
  40             new AudioFormat(AudioFormat.CONTAINER_WAVE, AudioFormat.CODEC_PCM_SIGNED, false, 16, null, 16000L));
  41
  42     @Override
  43     public Set<Voice> getAvailableVoices() {
  44         return this.voices;
  45     }
  46
  47     @Override
  48     public Set<AudioFormat> getSupportedFormats() {
  49         return this.audioFormats;
  50     }
  51
  52     @Override
  53     public AudioStream synthesize(String text, Voice voice, AudioFormat requestedFormat) throws TTSException {
  54         if (text == null || text.isEmpty()) {
  55             throw new TTSException("The passed text can not be null or empty");
  56         }
  57
  58         if (!this.voices.contains(voice)) {
  59             throw new TTSException("The passed voice is unsupported");
  60         }
  61
  62         boolean isAudioFormatSupported = this.audioFormats.stream().anyMatch(audioFormat -> {
  63             return audioFormat.isCompatible(requestedFormat);
  64         });
  65
  66         if (!isAudioFormatSupported) {
  67             throw new TTSException("The passed AudioFormat is unsupported");
  68         }
  69
  70         try {
  71             return new PicoTTSAudioStream(text, voice, requestedFormat);
  72         } catch (AudioException e) {
  73             throw new TTSException(e);
  74         }
  75     }
  76
  77     @Override
  78     public String getId() {
  79         return "picotts";
  80     }
  81
  82     @Override
  83     public String getLabel(Locale locale) {
  84         return "PicoTTS";
  85     }
  86 }