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   1 /**
   2  * Copyright (c) 2010-2023 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.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.core.audio.AudioException;
  24 import org.openhab.core.audio.AudioFormat;
  25 import org.openhab.core.audio.AudioStream;
  26 import org.openhab.core.voice.TTSException;
  27 import org.openhab.core.voice.TTSService;
  28 import org.openhab.core.voice.Voice;
  29 import org.osgi.service.component.annotations.Component;
  30
  31 /**
  32  * @author Florian Schmidt - Initial Contribution
  33  */
  34 @Component
  35 @NonNullByDefault
  36 public class PicoTTSService implements TTSService {
  37     private final Set<Voice> voices = Stream
  38             .of(new PicoTTSVoice("de-DE"), new PicoTTSVoice("en-US"), new PicoTTSVoice("en-GB"),
  39                     new PicoTTSVoice("es-ES"), new PicoTTSVoice("fr-FR"), new PicoTTSVoice("it-IT"))
  40             .collect(Collectors.toSet());
  41
  42     private final Set<AudioFormat> audioFormats = Collections.singleton(
  43             new AudioFormat(AudioFormat.CONTAINER_WAVE, AudioFormat.CODEC_PCM_SIGNED, false, 16, null, 16000L));
  44
  45     @Override
  46     public Set<Voice> getAvailableVoices() {
  47         return this.voices;
  48     }
  49
  50     @Override
  51     public Set<AudioFormat> getSupportedFormats() {
  52         return this.audioFormats;
  53     }
  54
  55     @Override
  56     public AudioStream synthesize(String text, Voice voice, AudioFormat requestedFormat) throws TTSException {
  57         if (text.isEmpty()) {
  58             throw new TTSException("The passed text can not be empty");
  59         }
  60
  61         if (!this.voices.contains(voice)) {
  62             throw new TTSException("The passed voice is unsupported");
  63         }
  64
  65         boolean isAudioFormatSupported = this.audioFormats.stream().anyMatch(audioFormat -> {
  66             return audioFormat.isCompatible(requestedFormat);
  67         });
  68
  69         if (!isAudioFormatSupported) {
  70             throw new TTSException("The passed AudioFormat is unsupported");
  71         }
  72
  73         try {
  74             return new PicoTTSAudioStream(text, voice, requestedFormat);
  75         } catch (AudioException e) {
  76             throw new TTSException(e);
  77         }
  78     }
  79
  80     @Override
  81     public String getId() {
  82         return "picotts";
  83     }
  84
  85     @Override
  86     public String getLabel(@Nullable Locale locale) {
  87         return "PicoTTS";
  88     }
  89 }