{"id":309634,"date":"2024-05-20T21:31:01","date_gmt":"2024-05-20T13:31:01","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/309634.html"},"modified":"2024-05-20T21:31:13","modified_gmt":"2024-05-20T13:31:13","slug":"%e6%80%8e%e4%b9%88%e7%94%a8js%e5%90%88%e5%b9%b6m3u8%e4%b8%ad%e7%9a%84ts%e8%a7%86%e9%a2%91","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/309634.html","title":{"rendered":"\u600e\u4e48\u7528js\u5408\u5e76m3u8\u4e2d\u7684ts\u89c6\u9891"},"content":{"rendered":"

\"\u600e\u4e48\u7528js\u5408\u5e76m3u8\u4e2d\u7684ts\u89c6\u9891\"<\/p>\n

\u5408\u5e76 M3U8 \u4e2d\u7684 TS \u89c6\u9891<\/strong> \u4e3b\u8981\u6d89\u53ca\u5230\u4e0b\u8f7d M3U8 \u6587\u4ef6\u5217\u8868\u3001\u4e0b\u8f7d TS \u89c6\u9891\u7247\u6bb5\u3001\u5408\u5e76\u7247\u6bb5\u3002\u9996\u5148\u3001\u8981\u4f7f\u7528 JavaScript \u64cd\u4f5c\u6d41\u5a92\u4f53\uff0c\u4e00\u822c\u4f1a\u501f\u52a9 Node.js \u73af\u5883\u3001\u53ef\u4ee5\u7528 fs \u6a21\u5757\u8bfb\u5199\u6587\u4ef6\u3001http \u548c https \u6a21\u5757\u8bf7\u6c42\u7f51\u7edc\u8d44\u6e90\u3002\u5176\u6b21\u3001\u9700\u8981\u4e32\u884c\u6216\u5e76\u884c\u5730\u4e0b\u8f7d\u6240\u6709 TS \u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528\u6d41\u5904\u7406\u65b9\u5f0f\u5c06\u8fd9\u4e9b\u7247\u6bb5\u5408\u5e76\u4e3a\u4e00\u4e2a\u5355\u4e00\u7684\u89c6\u9891\u6587\u4ef6\u3002<\/p>\n<\/p>\n

\u5728 Node.js \u4e2d\uff0c\u5408\u5e76 TS \u6587\u4ef6\u901a\u5e38\u6d89\u53ca\u5230\u5bf9\u6587\u4ef6\u7cfb\u7edf\u7684\u64cd\u4f5c\uff0c\u8fd9\u5c31\u610f\u5473\u7740\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 fs.createReadStream<\/code> \u548c fs.createWriteStream<\/code> \u6765\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u6d41\u3002\u4e3a\u4e86\u786e\u4fdd TS \u7247\u6bb5\u662f\u6309\u6b63\u786e\u7684\u987a\u5e8f\u88ab\u5408\u5e76\uff0c\u6211\u4eec\u9700\u8981\u9996\u5148\u89e3\u6790 M3U8 \u6587\u4ef6\u6765\u83b7\u5f97 TS \u7247\u6bb5\u6587\u4ef6\u7684\u6b63\u786e\u987a\u5e8f\uff0c\u4e4b\u540e\u518d\u4e0b\u8f7d\u5e76\u5408\u5e76\u5b83\u4eec\u3002<\/p>\n<\/p>\n

\u4e00\u4e2a\u7b80\u5316\u7684\u5408\u5e76\u8fc7\u7a0b\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

    \n
  1. \u89e3\u6790 M3U8 \u6587\u4ef6\u83b7\u53d6 TS \u7247\u6bb5\u5217\u8868\u3002<\/li>\n
  2. \u6309\u5217\u8868\u987a\u5e8f\u4e0b\u8f7d\u6bcf\u4e2a\u7247\u6bb5\u3002<\/li>\n
  3. \u9010\u4e2a\u7247\u6bb5\u5408\u5e76\u5230\u4e00\u4e2a\u5355\u4e00\u7684 TS \u6587\u4ef6\u4e2d\u3002<\/li>\n<\/ol>\n

    \u4e00\u3001\u89e3\u6790 M3U8 \u6587\u4ef6<\/h3>\n<\/p>\n

    \u89e3\u6790 M3U8 \u6587\u4ef6\u5c31\u662f\u8bfb\u53d6 M3U8 \u6587\u4ef6\u7684\u5185\u5bb9\u5e76\u63d0\u53d6\u51fa\u5176\u4e2d\u7684 TS \u7247\u6bb5\u7684 URL \u5217\u8868\u3002\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u6587\u4ef6\u4e2d\u7684 TS \u6587\u4ef6\u5730\u5740\u3002<\/p>\n<\/p>\n

    const fs = require('fs');<\/p>\n
    const https = require('https');<\/p>\n
    const readline = require('readline');<\/p>\n
    async function parseM3U8(m3u8Url) {<\/p>\n
        \/\/ \u7528\u6765\u5b58\u50a8.ts\u6587\u4ef6\u94fe\u63a5<\/p>\n
        let tsUrls = [];<\/p>\n
        \/\/ \u53d1\u9001\u7f51\u7edc\u8bf7\u6c42\u83b7\u53d6m3u8\u6587\u4ef6\u5185\u5bb9<\/p>\n
        awAI<\/a>t new Promise((resolve, reject) => {<\/p>\n
            https.get(m3u8Url, response => {<\/p>\n
                \/\/ \u8bfb\u53d6M3U8\u6587\u4ef6\u5185\u5bb9\uff0c\u5e76\u6309\u884c\u8fdb\u884c\u5904\u7406<\/p>\n
                const rl = readline.createInterface({<\/p>\n
                    input: response,<\/p>\n
                    crlfDelay: Infinity<\/p>\n
                });<\/p>\n
                rl.on('line', (line) => {<\/p>\n
                    \/\/ \u5224\u65ad\u662f\u5426\u662fTS\u7247\u6bb5\u7684URL<\/p>\n
                    if (line && !line.startsWith("#")) {<\/p>\n
                        tsUrls.push(line);<\/p>\n
                    }<\/p>\n
                });<\/p>\n
                rl.on('close', () => {<\/p>\n
                    resolve();<\/p>\n
                });<\/p>\n
            }).on('error', err => {<\/p>\n
                reject(err);<\/p>\n
            });<\/p>\n
        });<\/p>\n
        return tsUrls;<\/p>\n
    }<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e8c\u3001\u4e0b\u8f7d TS \u7247\u6bb5<\/h3>\n<\/p>\n
    \u4e0b\u8f7d TS \u7247\u6bb5\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 https.get<\/code> \u65b9\u6cd5\u4ece\u7f51\u7edc\u4e0a\u8bf7\u6c42\u6bcf\u4e2a TS \u7247\u6bb5\uff0c\u5e76\u5c06\u5176\u5199\u5165\u672c\u5730\u6587\u4ef6\u3002<\/p>\n<\/p>\n
    \u4e09\u3001\u5408\u5e76 TS \u7247\u6bb5<\/h3>\n<\/p>\n
    \u5408\u5e76 TS \u7247\u6bb5\u65f6\uff0c\u53ef\u4ee5\u7b80\u5355\u5730\u5c06\u5b83\u4eec\u4f5c\u4e3a\u4e8c\u8fdb\u5236\u6570\u636e\u4e32\u8054\u8d77\u6765\u3002\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\uff0c\u7528\u4e8e\u5408\u5e76\u4e0b\u8f7d\u7684 TS \u6587\u4ef6\uff1a<\/p>\n<\/p>\n
    function mergeTsFiles(tsFiles, output) {<\/p>\n
        return new Promise((resolve, reject) => {<\/p>\n
            \/\/ \u521b\u5efa\u4e00\u4e2a\u53ef\u5199\u6d41\uff0c\u5199\u5165\u6700\u7ec8\u7684 TS \u6587\u4ef6<\/p>\n
            var writeStream = fs.createWriteStream(output);<\/p>\n
            \/\/ \u9012\u5f52\u51fd\u6570\uff0c\u7528\u4e8e\u6309\u987a\u5e8f\u8bfb\u53d6\u3001\u5199\u5165 TS \u7247\u6bb5<\/p>\n
            function appendNextTSFile(index) {<\/p>\n
                if (index >= tsFiles.length) {<\/p>\n
                    writeStream.end();<\/p>\n
                    resolve();<\/p>\n
                    return;<\/p>\n
                }<\/p>\n
                \/\/ \u6839\u636e\u7d22\u5f15\u8bfb\u53d6ts\u7247\u6bb5<\/p>\n
                var readStream = fs.createReadStream(tsFiles[index]);<\/p>\n
                \/\/ \u6570\u636e\u6d41\u5165\u5199\u5165\u6d41<\/p>\n
                readStream.pipe(writeStream, { end: false });<\/p>\n
                readStream.on('end', function() {<\/p>\n
                    \/\/ \u5f53\u524d\u7247\u6bb5\u5199\u5165\u5b8c\u6210\uff0c\u5904\u7406\u4e0b\u4e00\u4e2a<\/p>\n
                    appendNextTSFile(index + 1);<\/p>\n
                });<\/p>\n
                readStream.on('error', function(err) {<\/p>\n
                    reject(err);<\/p>\n
                });<\/p>\n
            }<\/p>\n
            appendNextTSFile(0);<\/p>\n
        });<\/p>\n
    }<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u56db\u3001\u6574\u5408\u4e0b\u8f7d\u548c\u5408\u5e76\u6d41\u7a0b<\/h3>\n<\/p>\n
    \u6700\u540e\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u51fd\u6570\u6765\u6574\u5408\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u8fd9\u4e2a\u51fd\u6570\u4f1a\u6309\u987a\u5e8f\u6267\u884c\u89e3\u6790 M3U8 \u6587\u4ef6\u3001\u4e0b\u8f7d\u6bcf\u4e2a TS \u7247\u6bb5\u3001\u5408\u5e76\u5b83\u4eec\u6210\u4e00\u4e2a\u6587\u4ef6\u7684\u6d41\u7a0b\u3002<\/p>\n<\/p>\n
    async function downloadAndMerge(m3u8Url, outputPath) {<\/p>\n
        try {<\/p>\n
            \/\/ \u89e3\u6790M3U8\u6587\u4ef6\u83b7\u53d6TS\u7247\u6bb5\u5217\u8868<\/p>\n
            const tsUrls = await parseM3U8(m3u8Url);<\/p>\n
            \/\/ \u6267\u884c\u4e0b\u8f7d TS \u6587\u4ef6\u64cd\u4f5c<\/p>\n
            const tsFiles = []; \/\/ \u5b58\u50a8\u5df2\u4e0b\u8f7d\u7684 TS \u6587\u4ef6\u540d<\/p>\n
            for (let i = 0; i < tsUrls.length; i++) {<\/p>\n
                \/\/ \u8fd9\u91cc\u53ef\u4ee5\u52a0\u5165\u5177\u4f53\u7684\u4e0b\u8f7d TS \u7247\u6bb5\u903b\u8f91<\/p>\n
                \/\/ \u5c06tsUrls[i]\u91cc\u7684TS\u7247\u6bb5\u4e0b\u8f7d\u5230\u672c\u5730\uff0c\u5e76\u5c06\u672c\u5730\u8def\u5f84\u52a0\u5165\u5230tsFiles\u6570\u7ec4\u4e2d<\/p>\n
                \/\/ downloadTsFile(tsUrls[i], `ts-${i}.ts`); \/\/ \u5047\u8bbe\u4e0b\u8f7d\u51fd\u6570\u53ca\u672c\u5730\u6587\u4ef6\u540d<\/p>\n
            }<\/p>\n
            \/\/ \u6240\u6709 TS \u7247\u6bb5\u4e0b\u8f7d\u5b8c\u6210\u540e\u5408\u5e76\u5b83\u4eec<\/p>\n
            await mergeTsFiles(tsFiles, outputPath);<\/p>\n
            \/\/ \u5408\u5e76\u540e\uff0c\u53ef\u4ee5\u8fdb\u884c\u540e\u7eed\u5904\u7406\uff0c\u6bd4\u5982\u6e05\u7406\u4e0b\u8f7d\u7684 TS \u7247\u6bb5\u6587\u4ef6<\/p>\n
            console.log('Merge completed! Final file: ' + outputPath);<\/p>\n
        } catch (err) {<\/p>\n
            console.error(err);<\/p>\n
        }<\/p>\n
    }<\/p>\n
    \/\/ \u4f7f\u7528\u793a\u4f8b<\/p>\n
    downloadAndMerge('https:\/\/example.com\/path\/to\/playlist.m3u8', 'final.ts');<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u63d0\u5230\u7684 downloadTsFile<\/code> \u51fd\u6570\u9700\u8981\u7f16\u5199\u4ee5\u5b8c\u6210 TS \u7247\u6bb5\u7684\u4e0b\u8f7d\uff0c\u5e76\u4e14\u9700\u8981\u5904\u7406\u5982\u4f55\u50a8\u5b58\u548c\u5f15\u7528\u4e34\u65f6\u7684 TS \u7247\u6bb5\u6587\u4ef6\u3002\u8fd9\u9700\u8981\u8003\u8651\u5230\u5f02\u6b65\u6587\u4ef6\u64cd\u4f5c\u3001\u9519\u8bef\u5904\u7406\u3001\u78c1\u76d8\u7a7a\u95f4\u7ba1\u7406\u7b49\u5b9e\u9645\u7f16\u5199\u65f6\u9047\u5230\u7684\u95ee\u9898\u3002\u5728\u7f16\u5199\u771f\u6b63\u7684\u5e94\u7528\u65f6\uff0c\u8fd8\u9700\u8981\u8003\u8651 M3U8 \u6587\u4ef6\u4e2d\u4e0d\u540c\u7684\u6807\u8bb0\u53ca\u5176\u542b\u4e49\u3001\u52a0\u5bc6\u7684 TS \u7247\u6bb5\u5982\u4f55\u5904\u7406\u7b49\u60c5\u51b5\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
    1. \u6211\u8be5\u5982\u4f55\u4f7f\u7528JavaScript\u5408\u5e76M3U8\u4e2d\u7684TS\u89c6\u9891\u6587\u4ef6\uff1f<\/strong><\/p>\n
    \u5408\u5e76M3U8\u4e2d\u7684TS\u89c6\u9891\u6587\u4ef6\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u9700\u6c42\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528JavaScript\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u79cd\u5b9e\u73b0\u7684\u65b9\u6cd5\uff1a<\/p>\n
    \u9996\u5148\uff0c\u4f60\u9700\u8981\u4f7f\u7528JavaScript\u8bfb\u53d6M3U8\u6587\u4ef6\uff0c\u83b7\u5f97\u5176\u4e2d\u6240\u6709\u7684TS\u89c6\u9891\u6587\u4ef6\u7684URL\u8def\u5f84\u3002\u53ef\u4ee5\u4f7f\u7528Ajax\u8bf7\u6c42\u6216\u8005fetch API\u6765\u83b7\u53d6M3U8\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n
    \u5176\u6b21\uff0c\u4f60\u9700\u8981\u904d\u5386M3U8\u4e2d\u7684\u6bcf\u4e00\u4e2aTS\u89c6\u9891\u6587\u4ef6\u7684URL\uff0c\u4f7f\u7528JavaScript\u7684\u7f51\u7edc\u8bf7\u6c42API\uff08\u5982fetch\u6216XMLHttpRequest\uff09\uff0c\u5c06TS\u6587\u4ef6\u4e0b\u8f7d\u5230\u672c\u5730\u3002<\/p>\n
    \u7136\u540e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528Blob\u5bf9\u8c61\u548cFileReader\u5bf9\u8c61\u5c06\u6240\u6709\u7684TS\u6587\u4ef6\u5408\u5e76\u3002\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Blob\u5bf9\u8c61\uff0c\u5c06\u6240\u6709\u7684TS\u6587\u4ef6\u8ffd\u52a0\u5230\u5176\u4e2d\u3002\u7136\u540e\u4f7f\u7528FileReader.readAsArrayBuffer()\u65b9\u6cd5\u8bfb\u53d6Blob\u5bf9\u8c61\u7684\u6570\u636e\u3002<\/p>\n
    \u6700\u540e\uff0c\u4f60\u53ef\u4ee5\u5c06\u5408\u5e76\u540e\u7684TS\u6587\u4ef6\u4fdd\u5b58\u4e3a\u4e00\u4e2a\u65b0\u7684TS\u89c6\u9891\u6587\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528JavaScript\u7684\u6587\u4ef6\u5199\u5165\u65b9\u6cd5\uff0c\u5c06\u8bfb\u53d6\u5230\u7684\u6570\u636e\u5199\u5165\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u4e2d\u3002\u6700\u540e\uff0c\u4f60\u4f1a\u5f97\u5230\u4e00\u4e2a\u5408\u5e76\u4e86\u6240\u6709TS\u6587\u4ef6\u7684\u89c6\u9891\u6587\u4ef6\u3002<\/p>\n
    2. JavaScript\u4e2d\u90fd\u6709\u54ea\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5408\u5e76\u4e00\u4e2aM3U8\u6587\u4ef6\u4e2d\u7684\u591a\u4e2aTS\u89c6\u9891\uff1f<\/strong><\/p>\n
    \u5728JavaScript\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5408\u5e76\u4e00\u4e2aM3U8\u6587\u4ef6\u4e2d\u7684\u591a\u4e2aTS\u89c6\u9891\uff0c\u4e0b\u9762\u662f\u5176\u4e2d\u51e0\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n
      \n
    • \n
      \u4f7f\u7528fetch API\uff1a\u901a\u8fc7\u8c03\u7528fetch\u51fd\u6570\u6765\u83b7\u53d6M3U8\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u7136\u540e\u4f7f\u7528\u8bfb\u53d6\u6d41\u5c06TS\u89c6\u9891\u6587\u4ef6\u9010\u4e2a\u53d6\u51fa\uff0c\u5e76\u4f7f\u7528Blob\u5bf9\u8c61\u548cFileReader\u5bf9\u8c61\u8fdb\u884c\u5408\u5e76\u3002<\/p>\n<\/li>\n
    • \n
      \u4f7f\u7528XMLHttpRequest\uff1a\u901a\u8fc7\u8c03\u7528XMLHttpRequest\u5bf9\u8c61\u7684open\u548csend\u65b9\u6cd5\u6765\u83b7\u53d6M3U8\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u7136\u540e\u4f7f\u7528\u8bfb\u53d6\u6d41\u5c06TS\u89c6\u9891\u6587\u4ef6\u53d6\u51fa\uff0c\u5e76\u4f7f\u7528Blob\u5bf9\u8c61\u548cFileReader\u5bf9\u8c61\u8fdb\u884c\u5408\u5e76\u3002<\/p>\n<\/li>\n
    • \n
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