mirror of
https://github.com/hicccc77/WeFlow.git
synced 2026-03-25 07:16:51 +00:00
378 lines
12 KiB
TypeScript
378 lines
12 KiB
TypeScript
import { app } from 'electron'
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import { existsSync, mkdirSync, statSync, unlinkSync, createWriteStream } from 'fs'
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import { join } from 'path'
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import * as https from 'https'
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import * as http from 'http'
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import { ConfigService } from './config'
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// Sherpa-onnx 类型定义
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type OfflineRecognizer = any
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type OfflineStream = any
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type ModelInfo = {
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name: string
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files: {
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model: string
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tokens: string
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}
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sizeBytes: number
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sizeLabel: string
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}
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type DownloadProgress = {
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modelName: string
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downloadedBytes: number
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totalBytes?: number
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percent?: number
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}
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const SENSEVOICE_MODEL: ModelInfo = {
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name: 'SenseVoiceSmall',
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files: {
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model: 'model.int8.onnx',
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tokens: 'tokens.txt'
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},
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sizeBytes: 245_000_000,
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sizeLabel: '245 MB'
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}
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const MODEL_DOWNLOAD_URLS = {
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model: 'https://modelscope.cn/models/pengzhendong/sherpa-onnx-sense-voice-zh-en-ja-ko-yue/resolve/master/model.int8.onnx',
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tokens: 'https://modelscope.cn/models/pengzhendong/sherpa-onnx-sense-voice-zh-en-ja-ko-yue/resolve/master/tokens.txt'
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}
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export class VoiceTranscribeService {
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private configService = new ConfigService()
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private downloadTasks = new Map<string, Promise<{ success: boolean; path?: string; error?: string }>>()
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private recognizer: OfflineRecognizer | null = null
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private isInitializing = false
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private resolveModelDir(): string {
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const configured = this.configService.get('whisperModelDir') as string | undefined
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if (configured) return configured
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return join(app.getPath('documents'), 'WeFlow', 'models', 'sensevoice')
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}
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private resolveModelPath(fileName: string): string {
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return join(this.resolveModelDir(), fileName)
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}
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/**
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* 检查模型状态
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*/
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async getModelStatus(): Promise<{
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success: boolean
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exists?: boolean
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modelPath?: string
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tokensPath?: string
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sizeBytes?: number
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error?: string
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}> {
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try {
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const modelPath = this.resolveModelPath(SENSEVOICE_MODEL.files.model)
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const tokensPath = this.resolveModelPath(SENSEVOICE_MODEL.files.tokens)
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const modelExists = existsSync(modelPath)
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const tokensExists = existsSync(tokensPath)
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const exists = modelExists && tokensExists
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if (!exists) {
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return { success: true, exists: false, modelPath, tokensPath }
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}
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const modelSize = statSync(modelPath).size
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const tokensSize = statSync(tokensPath).size
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const totalSize = modelSize + tokensSize
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return {
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success: true,
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exists: true,
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modelPath,
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tokensPath,
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sizeBytes: totalSize
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}
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} catch (error) {
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return { success: false, error: String(error) }
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}
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}
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/**
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* 下载模型文件
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*/
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async downloadModel(
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onProgress?: (progress: DownloadProgress) => void
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): Promise<{ success: boolean; modelPath?: string; tokensPath?: string; error?: string }> {
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const cacheKey = 'sensevoice'
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const pending = this.downloadTasks.get(cacheKey)
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if (pending) return pending
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const task = (async () => {
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try {
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const modelDir = this.resolveModelDir()
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if (!existsSync(modelDir)) {
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mkdirSync(modelDir, { recursive: true })
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}
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const modelPath = this.resolveModelPath(SENSEVOICE_MODEL.files.model)
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const tokensPath = this.resolveModelPath(SENSEVOICE_MODEL.files.tokens)
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// 初始进度
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onProgress?.({
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modelName: SENSEVOICE_MODEL.name,
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downloadedBytes: 0,
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totalBytes: SENSEVOICE_MODEL.sizeBytes,
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percent: 0
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})
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// 下载模型文件 (40%)
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console.info('[VoiceTranscribe] 开始下载模型文件...')
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await this.downloadToFile(
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MODEL_DOWNLOAD_URLS.model,
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modelPath,
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'model',
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(downloaded, total) => {
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const percent = total ? (downloaded / total) * 40 : undefined
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onProgress?.({
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modelName: SENSEVOICE_MODEL.name,
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downloadedBytes: downloaded,
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totalBytes: SENSEVOICE_MODEL.sizeBytes,
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percent
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})
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}
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)
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// 下载 tokens 文件 (30%)
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console.info('[VoiceTranscribe] 开始下载 tokens 文件...')
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await this.downloadToFile(
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MODEL_DOWNLOAD_URLS.tokens,
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tokensPath,
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'tokens',
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(downloaded, total) => {
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const modelSize = existsSync(modelPath) ? statSync(modelPath).size : 0
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const percent = total ? 40 + (downloaded / total) * 30 : 40
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onProgress?.({
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modelName: SENSEVOICE_MODEL.name,
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downloadedBytes: modelSize + downloaded,
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totalBytes: SENSEVOICE_MODEL.sizeBytes,
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percent
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})
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}
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)
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console.info('[VoiceTranscribe] 模型下载完成')
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console.info('[VoiceTranscribe] 所有文件下载完成')
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return { success: true, modelPath, tokensPath }
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} catch (error) {
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const modelPath = this.resolveModelPath(SENSEVOICE_MODEL.files.model)
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const tokensPath = this.resolveModelPath(SENSEVOICE_MODEL.files.tokens)
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try {
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if (existsSync(modelPath)) unlinkSync(modelPath)
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if (existsSync(tokensPath)) unlinkSync(tokensPath)
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} catch { }
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return { success: false, error: String(error) }
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} finally {
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this.downloadTasks.delete(cacheKey)
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}
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})()
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this.downloadTasks.set(cacheKey, task)
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return task
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}
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/**
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* 转写 WAV 音频数据 (后台 Worker Threads 版本)
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*/
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async transcribeWavBuffer(
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wavData: Buffer,
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onPartial?: (text: string) => void,
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languages?: string[]
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): Promise<{ success: boolean; transcript?: string; error?: string }> {
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return new Promise((resolve) => {
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try {
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const modelPath = this.resolveModelPath(SENSEVOICE_MODEL.files.model)
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const tokensPath = this.resolveModelPath(SENSEVOICE_MODEL.files.tokens)
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if (!existsSync(modelPath) || !existsSync(tokensPath)) {
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resolve({ success: false, error: '模型文件不存在，请先下载模型' })
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return
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}
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// 获取配置的语言列表，如果没有传入则从配置读取
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let supportedLanguages = languages
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if (!supportedLanguages || supportedLanguages.length === 0) {
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supportedLanguages = this.configService.get('transcribeLanguages')
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// 如果配置中也没有或为空，使用默认值
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if (!supportedLanguages || supportedLanguages.length === 0) {
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supportedLanguages = ['zh', 'yue']
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}
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}
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const { Worker } = require('worker_threads')
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// main.js 和 transcribeWorker.js 同在 dist-electron 目录下
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const workerPath = join(__dirname, 'transcribeWorker.js')
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const worker = new Worker(workerPath, {
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workerData: {
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modelPath,
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tokensPath,
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wavData,
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sampleRate: 16000,
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languages: supportedLanguages
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}
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})
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let finalTranscript = ''
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worker.on('message', (msg: any) => {
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if (msg.type === 'partial') {
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onPartial?.(msg.text)
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} else if (msg.type === 'final') {
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finalTranscript = msg.text
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resolve({ success: true, transcript: finalTranscript })
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worker.terminate()
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} else if (msg.type === 'error') {
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console.error('[VoiceTranscribe] Worker 错误:', msg.error)
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resolve({ success: false, error: msg.error })
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worker.terminate()
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}
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})
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worker.on('error', (err: Error) => {
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resolve({ success: false, error: String(err) })
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})
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worker.on('exit', (code: number) => {
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if (code !== 0) {
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console.error(`[VoiceTranscribe] Worker stopped with exit code ${code}`)
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resolve({ success: false, error: `Worker exited with code ${code}` })
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}
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})
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} catch (error) {
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resolve({ success: false, error: String(error) })
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}
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})
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}
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/**
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* 下载文件
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*/
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private downloadToFile(
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url: string,
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targetPath: string,
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fileName: string,
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onProgress?: (downloaded: number, total?: number) => void,
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remainingRedirects = 5
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): Promise<void> {
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return new Promise((resolve, reject) => {
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const protocol = url.startsWith('https') ? https : http
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console.info(`[VoiceTranscribe] 下载 ${fileName}:`, url)
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const options = {
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headers: {
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'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
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},
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timeout: 30000 // 30秒连接超时
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}
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const request = protocol.get(url, options, (response) => {
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console.info(`[VoiceTranscribe] ${fileName} 响应状态:`, response.statusCode)
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// 处理重定向
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if ([301, 302, 303, 307, 308].includes(response.statusCode || 0) && response.headers.location) {
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if (remainingRedirects <= 0) {
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reject(new Error('重定向次数过多'))
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return
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}
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console.info(`[VoiceTranscribe] 重定向到:`, response.headers.location)
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this.downloadToFile(response.headers.location, targetPath, fileName, onProgress, remainingRedirects - 1)
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.then(resolve)
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.catch(reject)
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return
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}
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if (response.statusCode !== 200) {
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reject(new Error(`下载失败: HTTP ${response.statusCode}`))
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return
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}
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const totalBytes = Number(response.headers['content-length'] || 0) || undefined
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let downloadedBytes = 0
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console.info(`[VoiceTranscribe] ${fileName} 文件大小:`, totalBytes ? `${(totalBytes / 1024 / 1024).toFixed(2)} MB` : '未知')
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const writer = createWriteStream(targetPath)
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// 设置数据接收超时（60秒没有数据则超时）
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let lastDataTime = Date.now()
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const dataTimeout = setInterval(() => {
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if (Date.now() - lastDataTime > 60000) {
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clearInterval(dataTimeout)
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response.destroy()
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writer.close()
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reject(new Error('下载超时：60秒内未收到数据'))
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}
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}, 5000)
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response.on('data', (chunk) => {
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lastDataTime = Date.now()
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downloadedBytes += chunk.length
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onProgress?.(downloadedBytes, totalBytes)
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})
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response.on('error', (error) => {
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clearInterval(dataTimeout)
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try { writer.close() } catch { }
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console.error(`[VoiceTranscribe] ${fileName} 响应错误:`, error)
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reject(error)
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})
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writer.on('error', (error) => {
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clearInterval(dataTimeout)
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try { writer.close() } catch { }
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console.error(`[VoiceTranscribe] ${fileName} 写入错误:`, error)
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reject(error)
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})
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writer.on('finish', () => {
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clearInterval(dataTimeout)
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writer.close()
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console.info(`[VoiceTranscribe] ${fileName} 下载完成:`, targetPath)
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resolve()
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})
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response.pipe(writer)
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})
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request.on('timeout', () => {
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request.destroy()
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console.error(`[VoiceTranscribe] ${fileName} 连接超时`)
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reject(new Error('连接超时'))
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})
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request.on('error', (error) => {
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console.error(`[VoiceTranscribe] ${fileName} 请求错误:`, error)
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reject(error)
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})
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})
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}
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/**
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* 清理资源
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*/
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dispose() {
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if (this.recognizer) {
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try {
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// sherpa-onnx 的 recognizer 可能需要手动释放
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this.recognizer = null
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} catch (error) {
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}
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}
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}
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}
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export const voiceTranscribeService = new VoiceTranscribeService()
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