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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\Phonos\Engine; |
| 4 | |
| 5 | use DOMDocument; |
| 6 | use MediaWiki\Extension\Phonos\Exception\PhonosException; |
| 7 | |
| 8 | class LarynxEngine extends Engine { |
| 9 | |
| 10 | protected string $apiEndpoint; |
| 11 | |
| 12 | protected function register(): void { |
| 13 | $this->apiEndpoint = $this->config->get( 'PhonosApiEndpointLarynx' ); |
| 14 | } |
| 15 | |
| 16 | /** |
| 17 | * @inheritDoc |
| 18 | * @codeCoverageIgnore |
| 19 | * @throws PhonosException |
| 20 | */ |
| 21 | public function getAudioData( AudioParams $params ): string { |
| 22 | $persistedAudio = $this->getPersistedAudio( $params ); |
| 23 | if ( $persistedAudio ) { |
| 24 | return $persistedAudio; |
| 25 | } |
| 26 | |
| 27 | $ssml = trim( $this->getSsml( $params ) ); |
| 28 | $url = $this->apiEndpoint . '?' . http_build_query( [ |
| 29 | 'ssml' => true, |
| 30 | // TODO: should the voice be configurable, too? |
| 31 | 'voice' => 'en-us/blizzard_lessac-glow_tts', |
| 32 | 'text' => $ssml, |
| 33 | ] ); |
| 34 | $options = [ |
| 35 | 'method' => 'GET' |
| 36 | ]; |
| 37 | |
| 38 | if ( $this->apiProxy ) { |
| 39 | $options['proxy'] = $this->apiProxy; |
| 40 | } |
| 41 | |
| 42 | $request = $this->requestFactory->create( |
| 43 | $url, |
| 44 | $options, |
| 45 | __METHOD__ |
| 46 | ); |
| 47 | $status = $request->execute(); |
| 48 | |
| 49 | if ( !$status->isOK() ) { |
| 50 | $error = $status->getMessage()->text(); |
| 51 | throw new PhonosException( 'phonos-engine-error', [ 'Larynx', $error ] ); |
| 52 | } |
| 53 | |
| 54 | $out = $this->convertWavToMp3( $request->getContent() ); |
| 55 | $this->persistAudio( $params, $out ); |
| 56 | |
| 57 | return $out; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * @inheritDoc |
| 62 | */ |
| 63 | public function getSsml( AudioParams $params ): string { |
| 64 | $ipa = trim( $params->getIpa() ); |
| 65 | $text = $params->getText() ?: $ipa; |
| 66 | |
| 67 | $ssmlDoc = new DOMDocument( '1.0' ); |
| 68 | |
| 69 | $speakNode = $ssmlDoc->createElement( 'speak' ); |
| 70 | $speakNode->setAttribute( 'xmlns', 'http://www.w3.org/2001/10/synthesis' ); |
| 71 | $speakNode->setAttribute( 'version', '1.1' ); |
| 72 | $speakNode->setAttribute( 'xml:lang', $params->getLang() ); |
| 73 | $ssmlDoc->appendChild( $speakNode ); |
| 74 | |
| 75 | /** |
| 76 | * Adds the following to the <speak> node: |
| 77 | * <phoneme alphabet="ipa" ph={$ipa}> |
| 78 | * <w>{$text} ?: {$ipa}</w> |
| 79 | * </phoneme> |
| 80 | */ |
| 81 | |
| 82 | $phonemeNode = $ssmlDoc->createElement( 'phoneme' ); |
| 83 | $phonemeNode->setAttribute( 'alphabet', 'ipa' ); |
| 84 | $phonemeNode->setAttribute( 'ph', $ipa ); |
| 85 | $wNode = $ssmlDoc->createElement( 'w', $text ); |
| 86 | $phonemeNode->appendChild( $wNode ); |
| 87 | $speakNode->appendChild( $phonemeNode ); |
| 88 | |
| 89 | return $ssmlDoc->saveXML(); |
| 90 | } |
| 91 | } |