视频翻译软件pyVideoTrans-开源免费的视频翻译配音软件

玩配音的基本都知道，微软的edge-tts是好用免费的语音合成利器，唯一缺点是对国内限流越来越严，不过可以通过部署到 cloudflare 来规避，并且还能白嫖 cloudflare的服务器和带宽资源。

先看效果，完成后将有一个配音api接口和一个web配音界面

这是web界面


const requestBody = {
          "model": "tts-1",
          "input": '这是要合成语音的文字',
          "voice": 'zh-CN-XiaoxiaoNeural',
          "response_format": "mp3",
          "speed": 1.0
        };

const response = await fetch('部署到cloudflare后的网址', {
            method: 'POST',
            headers: {
              'Content-Type': 'application/json',
              'Authorization': `Bearer 部署后的key，随意`,
            },
            body: JSON.stringify(requestBody),
});

这是接口调用js版函数，并兼容 openai tts 接口

接下来说说如何部署到 cloudflare 上

登录 cloudflare 创建一个Workers

网址 https://dash.cloudflare.com/ 如何登录注册不再赘述

登录后，点击左侧 Workers 和 Pages，打开创建页面

继续点击创建

然后在出现的输入框中填写一个英文名称，作为cloudflare赠送的免费子域名头

点击右下角部署后，在新出现的页面中继续点击编辑代码，进入核心阶段，复制代码

然后删掉里面所有的代码，复制下面的代码去替换

// 自定义api key ，用于防止滥用
const API_KEY = '';
const encoder = new TextEncoder();
let expiredAt = null;
let endpoint = null;
let clientId = "";


const TOKEN_REFRESH_BEFORE_EXPIRY = 3 * 60;  
let tokenInfo = {
    endpoint: null,
    token: null,
    expiredAt: null
};

addEventListener("fetch", event => {
    event.respondWith(handleRequest(event.request));
});

async function handleRequest(request) {
    if (request.method === "OPTIONS") {
        return handleOptions(request);
    }
    
  
    const authHeader = request.headers.get("authorization") || request.headers.get("x-api-key");
    const apiKey = authHeader?.startsWith("Bearer ") 
        ? authHeader.slice(7) 
        : null;

    // 只在设置了 API_KEY 的情况下才验证              
    if (API_KEY && apiKey !== API_KEY) {
        return new Response(JSON.stringify({
            error: {
                message: "Invalid API key. Use 'Authorization: Bearer your-api-key' header",
                type: "invalid_request_error",
                param: null,
                code: "invalid_api_key"
            }
        }), {
            status: 401,
            headers: {
                "Content-Type": "application/json",
                ...makeCORSHeaders()
            }
        });
    }

    const requestUrl = new URL(request.url);
    const path = requestUrl.pathname;
    
    if (path === "/v1/audio/speech") {
        try {
            const requestBody = await request.json();
            const { 
                model = "tts-1",
                input,
                voice = "zh-CN-XiaoxiaoNeural",
                response_format = "mp3",
                speed = '1.0',
                volume='0',
                pitch = '0', // 添加 pitch 参数，默认值为 0
                style = "general"//添加style参数，默认值为general
            } = requestBody;

            let rate = parseInt(String( (parseFloat(speed)-1.0)*100) );
            let numVolume = parseInt( String(parseFloat(volume)*100) );
            let numPitch = parseInt(pitch); 
            const response = await getVoice(
                input, 
                voice, 
                rate>=0?`+${rate}%`:`${rate}%`,
                numPitch>=0?`+${numPitch}Hz`:`${numPitch}Hz`,
                numVolume>=0?`+${numVolume}%`:`${numVolume}%`,
                style,
                "audio-24khz-48kbitrate-mono-mp3"
            );

            return response;

        } catch (error) {
            console.error("Error:", error);
            return new Response(JSON.stringify({
                error: {
                    message: error.message,
                    type: "api_error",
                    param: null,
                    code: "edge_tts_error"
                }
            }), {
                status: 500,
                headers: {
                    "Content-Type": "application/json",
                    ...makeCORSHeaders()
                }
            });
        }
    }

    // 默认返回 404
    return new Response("Not Found", { status: 404 });
}

async function handleOptions(request) {
    return new Response(null, {
        status: 204,
        headers: {
            ...makeCORSHeaders(),
            "Access-Control-Allow-Methods": "GET,HEAD,POST,OPTIONS",
            "Access-Control-Allow-Headers": request.headers.get("Access-Control-Request-Headers") || "Authorization"
        }
    });
}

async function getVoice(text, voiceName = "zh-CN-XiaoxiaoNeural", rate = '+0%', pitch = '+0Hz', volume='+0%',style = "general", outputFormat = "audio-24khz-48kbitrate-mono-mp3") {
    try {
        const maxChunkSize = 2000;  
        const chunks = text.trim().split("\n");


        // 获取每个分段的音频
        //const audioChunks = await Promise.all(chunks.map(chunk => getAudioChunk(chunk, voiceName, rate, pitch, volume,style, outputFormat)));
        let audioChunks=[]
        while(chunks.length>0){
            try{
                let audio_chunk= await getAudioChunk(chunks.shift(), voiceName, rate, pitch, volume,style, outputFormat)
                audioChunks.push(audio_chunk)

            }catch(e){
                return new Response(JSON.stringify({
                    error: {
                        message: String(e),
                        type: "api_error",
                        param: `${voiceName}, ${rate}, ${pitch}, ${volume},${style}, ${outputFormat}`,
                        code: "edge_tts_error"
                    }
                }), {
                    status: 500,
                    headers: {
                        "Content-Type": "application/json",
                        ...makeCORSHeaders()
                    }
                });

            }
        }
       

        // 将音频片段拼接起来
        const concatenatedAudio = new Blob(audioChunks, { type: 'audio/mpeg' });
        const response = new Response(concatenatedAudio, {
            headers: {
                "Content-Type": "audio/mpeg",
                ...makeCORSHeaders()
            }
        });

        
        return response;

    } catch (error) {
        console.error("语音合成失败:", error);
        return new Response(JSON.stringify({
            error: {
                message: error,
                type: "api_error",
                param: null,
                code: "edge_tts_error "+voiceName
            }
        }), {
            status: 500,
            headers: {
                "Content-Type": "application/json",
                ...makeCORSHeaders()
            }
        });
    }
}



//获取单个音频数据
async function getAudioChunk(text, voiceName, rate, pitch,volume, style, outputFormat='audio-24khz-48kbitrate-mono-mp3') {
    const endpoint = await getEndpoint();
    const url = `https://${endpoint.r}.tts.speech.microsoft.com/cognitiveservices/v1`;
    let m=text.match(/\[(\d+)\]\s*?$/);
    let slien=0;
    if(m&&m.length==2){
      slien=parseInt(m[1]);
      text=text.replace(m[0],'')

    }
    const response = await fetch(url, {
        method: "POST",
        headers: {
            "Authorization": endpoint.t,
            "Content-Type": "application/ssml+xml",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 Edg/127.0.0.0",
            "X-Microsoft-OutputFormat": outputFormat
        },
        body: getSsml(text, voiceName, rate,pitch,volume, style,slien)
    });

    if (!response.ok) {
        const errorText = await response.text();
        throw new Error(`Edge TTS API error: ${response.status} ${errorText}`);
    }

    return response.blob();

}

function getSsml(text, voiceName, rate, pitch,volume,style,slien=0) {
   let slien_str='';
   if(slien>0){
    slien_str=`<break time="${slien}ms" />`
   }
    return `<speak xmlns="http://www.w3.org/2001/10/synthesis" xmlns:mstts="http://www.w3.org/2001/mstts" version="1.0" xml:lang="zh-CN"> 
                <voice name="${voiceName}"> 
                    <mstts:express-as style="${style}"  styledegree="2.0" role="default" > 
                        <prosody rate="${rate}" pitch="${pitch}" volume="${volume}">${text}</prosody> 
                    </mstts:express-as> 
                    ${slien_str}
                </voice> 
            </speak>`;

}

async function getEndpoint() {
    const now = Date.now() / 1000;
    
    if (tokenInfo.token && tokenInfo.expiredAt && now < tokenInfo.expiredAt - TOKEN_REFRESH_BEFORE_EXPIRY) {
        return tokenInfo.endpoint;
    }

    // 获取新token
    const endpointUrl = "https://dev.microsofttranslator.com/apps/endpoint?api-version=1.0";
    const clientId = crypto.randomUUID().replace(/-/g, "");
    
    try {
        const response = await fetch(endpointUrl, {
            method: "POST",
            headers: {
                "Accept-Language": "zh-Hans",
                "X-ClientVersion": "4.0.530a 5fe1dc6c",
                "X-UserId": "0f04d16a175c411e",
                "X-HomeGeographicRegion": "zh-Hans-CN",
                "X-ClientTraceId": clientId,
                "X-MT-Signature": await sign(endpointUrl),
                "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 Edg/127.0.0.0",
                "Content-Type": "application/json; charset=utf-8",
                "Content-Length": "0",
                "Accept-Encoding": "gzip"
            }
        });

        if (!response.ok) {
            throw new Error(`获取endpoint失败: ${response.status}`);
        }

        const data = await response.json();
        const jwt = data.t.split(".")[1];
        const decodedJwt = JSON.parse(atob(jwt));
        
        tokenInfo = {
            endpoint: data,
            token: data.t,
            expiredAt: decodedJwt.exp
        };

        return data;

    } catch (error) {
        console.error("获取endpoint失败:", error);
        // 如果有缓存的token，即使过期也尝试使用
        if (tokenInfo.token) {
            console.log("使用过期的缓存token");
            return tokenInfo.endpoint;
        }
        throw error;
    }
}

function addCORSHeaders(response) {
    const newHeaders = new Headers(response.headers);
    for (const [key, value] of Object.entries(makeCORSHeaders())) {
        newHeaders.set(key, value);
    }
    return new Response(response.body, { ...response, headers: newHeaders });
}

function makeCORSHeaders() {
    return {
        "Access-Control-Allow-Origin": "*", 
        "Access-Control-Allow-Methods": "GET,HEAD,POST,OPTIONS",
        "Access-Control-Allow-Headers": "Content-Type, x-api-key",
        "Access-Control-Max-Age": "86400"  
    };
}

async function hmacSha256(key, data) {
    const cryptoKey = await crypto.subtle.importKey(
        "raw",
        key,
        { name: "HMAC", hash: { name: "SHA-256" } },
        false,
        ["sign"]
    );
    const signature = await crypto.subtle.sign("HMAC", cryptoKey, new TextEncoder().encode(data));
    return new Uint8Array(signature);
}

async function base64ToBytes(base64) {
    const binaryString = atob(base64);
    const bytes = new Uint8Array(binaryString.length);
    for (let i = 0; i < binaryString.length; i++) {
        bytes[i] = binaryString.charCodeAt(i);
    }
    return bytes;
}

async function bytesToBase64(bytes) {
    return btoa(String.fromCharCode.apply(null, bytes));
}

function uuid() {
    return crypto.randomUUID().replace(/-/g, "");
}

async function sign(urlStr) {
    const url = urlStr.split("://")[1];
    const encodedUrl = encodeURIComponent(url);
    const uuidStr = uuid();
    const formattedDate = dateFormat();
    const bytesToSign = `MSTranslatorAndroidApp${encodedUrl}${formattedDate}${uuidStr}`.toLowerCase();
    const decode = await base64ToBytes("oik6PdDdMnOXemTbwvMn9de/h9lFnfBaCWbGMMZqqoSaQaqUOqjVGm5NqsmjcBI1x+sS9ugjB55HEJWRiFXYFw==");
    const signData = await hmacSha256(decode, bytesToSign);
    const signBase64 = await bytesToBase64(signData);
    return `MSTranslatorAndroidApp::${signBase64}::${formattedDate}::${uuidStr}`;
}

function dateFormat() {
    const formattedDate = (new Date()).toUTCString().replace(/GMT/, "").trim() + " GMT";
    return formattedDate.toLowerCase();
}

// 添加请求超时控制
async function fetchWithTimeout(url, options, timeout = 30000) {
    const controller = new AbortController();
    const id = setTimeout(() => controller.abort(), timeout);
    
    try {
        const response = await fetch(url, {
            ...options,
            signal: controller.signal
        });
        clearTimeout(id);
        return response;
    } catch (error) {
        clearTimeout(id);
        throw error;
    }
}

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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363

特别需要注意的是顶部两行代码，设置 api key ，防止被他人滥用

// 这是 api key，用于验证可用权限
const API_KEY = '';

绑定自己的域名

默认绑定的域名是 https://输入框填写的子域名头.你的账号名.workers.dev/

但不幸的是该域名在国内被墙，想免翻墙使用，你需要绑定一个自己的域名。

如果你还没有在 cloudflare上添加过自己的域名，可点击右上角添加--现有域，然后输入自己的域名

如果在cloudflare上已添加过域名，则点击左侧名称返回管理界面，添加自定义域名

点击设置--域和路由--添加

再点击自定义域，然后填写已添加到 cloudflare 的域名的子域名，例如我的域名 pyvideotrans.com 已添加cloudflare，那么此处我可以填写 ttsapi.pyvideotrans.com

如下图，添加完毕

此处显示你添加的自定义域

使用 openai sdk 测试

这是兼容openai 的接口，可使用openai sdk 直接测试，如下python代码

import logging
from openai import OpenAI
import json
import httpx

api_key = 'adgas213423235saeg'  # 替换为你的实际 API key
base_url = 'https://xxx.xxx.com/v1' # 替换为你的自定义域，默认加 /v1


client = OpenAI(
    api_key=api_key,
    base_url=base_url
)



data = {
    'model': 'tts-1',
    'input': '你好啊，亲爱的朋友们',
    'voice': 'zh-CN-YunjianNeural',
    'response_format': 'mp3',
    'speed': 1.0,
}


try:
    response = client.audio.speech.create(
       **data
    )
    with open('./test_openai.mp3', 'wb') as f:
        f.write(response.content)
    print("MP3 file saved successfully to test_openai.mp3")

except Exception as e:
    print(f"An error occurred: {e}")

搭建web界面

接口有了，那么如何搭建页面呢？

打开该项目 https://github.com/jianchang512/tts-pyvideotrans 下载解压，然后将其中的 index.html/output.css/vue.js 3个文件放在服务器目录下，访问 index.html 即可。

注意在 index.html 搜索 https://ttsapi.pyvideotrans.com, 改为你部署在 cloudflare 的自定义域，否则无法使用

登录 cloudflare 创建一个Workers ​

绑定自己的域名 ​

使用 openai sdk 测试 ​

搭建web界面 ​

参考 ​

登录 cloudflare 创建一个Workers

绑定自己的域名

使用 openai sdk 测试

搭建web界面

参考