File size: 5,756 Bytes
b82d373
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
import { doExtrasFetch, getApiUrl, modules } from '../../extensions.js';
import { saveTtsProviderSettings } from './index.js';

export { SileroTtsProvider };

class SileroTtsProvider {
    //########//
    // Config //
    //########//

    settings;
    ready = false;
    voices = [];
    separator = ' ';

    defaultSettings = {
        provider_endpoint: 'http://localhost:8001/tts',
        voiceMap: {},
    };

    get settingsHtml() {
        let html = `
        <label for="silero_tts_endpoint">Provider Endpoint:</label>
        <input id="silero_tts_endpoint" type="text" class="text_pole" maxlength="250" value="${this.defaultSettings.provider_endpoint}"/>
        <span>
        <span>Use <a target="_blank" href="https://github.com/SillyTavern/SillyTavern-extras">SillyTavern Extras API</a> or <a target="_blank" href="https://github.com/ouoertheo/silero-api-server">Silero TTS Server</a>.</span>
        `;
        return html;
    }

    onSettingsChange() {
        // Used when provider settings are updated from UI
        this.settings.provider_endpoint = $('#silero_tts_endpoint').val();
        saveTtsProviderSettings();
        this.refreshSession();
    }

    async loadSettings(settings) {
        // Pupulate Provider UI given input settings
        if (Object.keys(settings).length == 0) {
            console.info('Using default TTS Provider settings');
        }

        // Only accept keys defined in defaultSettings
        this.settings = this.defaultSettings;

        for (const key in settings) {
            if (key in this.settings) {
                this.settings[key] = settings[key];
            } else {
                throw `Invalid setting passed to TTS Provider: ${key}`;
            }
        }

        const apiCheckInterval = setInterval(() => {
            // Use Extras API if TTS support is enabled
            if (modules.includes('tts') || modules.includes('silero-tts')) {
                const baseUrl = new URL(getApiUrl());
                baseUrl.pathname = '/api/tts';
                this.settings.provider_endpoint = baseUrl.toString();
                $('#silero_tts_endpoint').val(this.settings.provider_endpoint);
                clearInterval(apiCheckInterval);
            }
        }, 2000);

        $('#silero_tts_endpoint').val(this.settings.provider_endpoint);
        $('#silero_tts_endpoint').on('input', () => { this.onSettingsChange(); });
        this.refreshSession();

        await this.checkReady();

        console.debug('SileroTTS: Settings loaded');
    }

    // Perform a simple readiness check by trying to fetch voiceIds
    async checkReady() {
        await this.fetchTtsVoiceObjects();
    }

    async onRefreshClick() {
        return;
    }

    async refreshSession() {
        await this.initSession();
    }

    //#################//
    //  TTS Interfaces //
    //#################//

    async getVoice(voiceName) {
        if (this.voices.length == 0) {
            this.voices = await this.fetchTtsVoiceObjects();
        }
        const match = this.voices.filter(
            sileroVoice => sileroVoice.name == voiceName,
        )[0];
        if (!match) {
            throw `TTS Voice name ${voiceName} not found`;
        }
        return match;
    }

    async generateTts(text, voiceId) {
        const response = await this.fetchTtsGeneration(text, voiceId);
        return response;
    }

    //###########//
    // API CALLS //
    //###########//
    async fetchTtsVoiceObjects() {
        const response = await doExtrasFetch(`${this.settings.provider_endpoint}/speakers`);
        if (!response.ok) {
            throw new Error(`HTTP ${response.status}: ${await response.json()}`);
        }
        const responseJson = await response.json();
        return responseJson;
    }

    async fetchTtsGeneration(inputText, voiceId) {
        console.info(`Generating new TTS for voice_id ${voiceId}`);
        const response = await doExtrasFetch(
            `${this.settings.provider_endpoint}/generate`,
            {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                    'Cache-Control': 'no-cache',  // Added this line to disable caching of file so new files are always played - Rolyat 7/7/23
                },
                body: JSON.stringify({
                    'text': inputText,
                    'speaker': voiceId,
                    'session': 'sillytavern',
                }),
            },
        );
        if (!response.ok) {
            toastr.error(response.statusText, 'TTS Generation Failed');
            throw new Error(`HTTP ${response.status}: ${await response.text()}`);
        }
        return response;
    }

    async initSession() {
        console.info('Silero TTS: requesting new session');
        try {
            const response = await doExtrasFetch(
                `${this.settings.provider_endpoint}/session`,
                {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                        'Cache-Control': 'no-cache',
                    },
                    body: JSON.stringify({
                        'path': 'sillytavern',
                    }),
                },
            );

            if (!response.ok && response.status !== 404) {
                throw new Error(`HTTP ${response.status}: ${await response.text()}`);
            }
        } catch (error) {
            console.info('Silero TTS: endpoint not available', error);
        }
    }

    // Interface not used by Silero TTS
    async fetchTtsFromHistory(history_item_id) {
        return Promise.resolve(history_item_id);
    }

}