{"id":1817,"date":"2023-06-19T18:08:09","date_gmt":"2023-06-19T10:08:09","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1817"},"modified":"2023-06-19T18:08:09","modified_gmt":"2023-06-19T10:08:09","slug":"%e6%b5%81%e5%aa%92%e4%bd%93%e4%b9%8bhls%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/uncategorized\/%e6%b5%81%e5%aa%92%e4%bd%93%e4%b9%8bhls%e8%af%a6%e8%a7%a3\/","title":{"rendered":"\u6d41\u5a92\u4f53\u4e4bHLS\u8be6\u89e3"},"content":{"rendered":"
\n
\n

<\/span>\u6d41\u5a92\u4f53\u4e4bHLS\u8be6\u89e3<\/span><\/span><\/h1>\n

@<\/p>\n

    \n
  • \n

    1 HLS \u6982\u8ff0<\/p>\n<\/li>\n

  • \n

    2 HLS\u67b6\u6784\u6d41\u7a0b<\/p>\n<\/li>\n

  • \n

    3 \u7d22\u5f15\u6587\u4ef6(m3u8\u6587\u4ef6)\u89e3\u6790<\/p>\n<\/li>\n

  • \n

    4 HLS\u4f1a\u8bdd\u6d41\u7a0b<\/p>\n<\/li>\n

  • \n

    5 HLS\u6293\u5305\u5206\u6790<\/p>\n<\/li>\n<\/ul>\n


    <\/p>\n

    <\/span>1 HLS \u6982\u8ff0<\/span><\/span><\/h2>\n

    HLS\uff08HTTP Live streaming\uff09\uff0c\u662f\u57fa\u4e8eHTTP\u7684\u6d41\u5a92\u4f53\u4f20\u8f93\u534f\u8bae\uff0c\u7531apple\u516c\u53f8\u6240\u63d0\u51fa\u7684\u4e00\u79cd\u7531\u4e8e\u4f20\u8f93\u97f3\u89c6\u9891\u7684\u534f\u8bae\u4ea4\u4e92\u65b9\u5f0f\uff0c\u5f53\u524dHLS\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u89c6\u9891\u70b9\u76f4\u64ad\u9886\u57df\u3002HLS\u91c7\u7528HTTP\u534f\u8bae\u4f20\u8f93\u97f3\u89c6\u9891\u6570\u636e\uff0cHLS\u901a\u8fc7\u5c06\u97f3\u89c6\u9891\u6d41\u5207\u5272\u6210\u4e00\u4e2a\u4e2a\u5c0f\u7684TS\u5207\u7247\u53ca\u751f\u6210m3u8\u7684\u64ad\u653e\u5217\u8868\u6587\u4ef6\uff0c\u64ad\u653e\u5ba2\u6237\u7aef\u901a\u8fc7HTTP\u534f\u8bae\u4e0b\u8f7d\u64ad\u653e\u5217\u8868\u6587\u4ef6\uff0c\u6309\u7167\u64ad\u653e\u5217\u8868\u6587\u4ef6\u5236\u5b9a\u7684\u987a\u5e8f\u4e0b\u8f7d\u5207\u7247\u6587\u4ef6\u5e76\u64ad\u653e\uff0c\u4ece\u800c\u5b9e\u73b0\u4fbf\u4e0b\u8f7d\u8fb9\u64ad\u653e\uff0c\u7c7b\u4f3c\u4e8e\u5b9e\u65f6\u5728\u7ebf\u64ad\u653e\u7684\u6548\u679c\u3002 \u7531\u4e8e\u4f20\u8f93\u5c42\u53ea\u91c7\u7528HTTP\u534f\u8bae\uff0c\u56e0\u6b64\u5176\u5177\u5907HTTP\u7684\u7f51\u4f20\u4f18\u52bf\uff0c\u6bd4\u5982\u53ef\u4ee5\u65b9\u4fbf\u7684\u900f\u8fc7\u9632\u706b\u5899\u6216\u8005\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u53ef\u7b80\u5355\u7684\u5b9e\u73b0\u5a92\u4f53\u6d41\u7684\u8d1f\u8f7d\u5747\u8861\uff0c\u53ef\u4ee5\u65b9\u4fbf\u7684\u7ed3\u5408CDN\u8fdb\u884c\u5a92\u4f53\u5206\u53d1\u7b49\uff0c\u53e6\u5916HLS\u534f\u8bae\u672c\u8eab\u53ef\u5b9e\u73b0\u7801\u7387\u81ea\u9002\u5e94\uff0c\u901a\u8fc7\u89c6\u9891\u8f6c\u7801\uff0c\u5207\u7247\u6210\u4e0d\u540c\u7801\u7387\u7684TS\u6587\u4ef6\uff0c\u4ece\u800c\u5b9e\u73b0\u64ad\u653e\u5ba2\u6237\u7aef\u6839\u636e\u7f51\u7edc\u5e26\u5bbd\u60c5\u51b5\uff0c\u81ea\u7531\u7684\u9009\u62e9\u7801\u6d41\u8fdb\u884c\u64ad\u653e\uff0c\u4f46\u662fHLS\u5728\u76f4\u64ad\u65f6\u5ef6\u65f6\u8f83\u5927\u3002 \u91c7\u7528HLS\u534f\u8bae\u4f20\u8f93\u6d41\u5a92\u4f53\u7684\u4f18\u52a3\u52bf\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n

      \n
    • \n
      \u4f18\u52bf\uff1a\u5ba2\u6237\u7aef\u652f\u6301\u7b80\u5355\uff0cH5 video\u5373\u53ef\u76f4\u63a5\u64ad\u653e\uff1b\u7f51\u7edc\u517c\u5bb9\u6027\u597d\uff0c\u53ef\u5f88\u65b9\u4fbf\u7684\u901a\u8fc7\u9632\u706b\u5899\u6216\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u53ef\u5f88\u7b80\u5355\u7684\u5b9e\u73b0\u5a92\u4f53\u6d41\u7684\u8d1f\u8f7d\u5747\u8861\uff0cCDN\u652f\u6301\u826f\u597d\uff1b\u81ea\u5e26\u591a\u7801\u7387\u81ea\u9002\u5e94\u673a\u5236\uff0c\u5b9e\u73b0\u64ad\u653e\u7801\u7387\u81ea\u7531\u9009\u62e9<\/section>\n<\/li>\n
    • \n
      \u52a3\u52bf\uff1a\u5ef6\u65f6\u8f83\u9ad8\uff0c\u4e0d\u80fd\u7528\u4e8e\u5bf9\u5ef6\u65f6\u8f83\u4e3a\u82db\u523b\u7684\u573a\u666f\uff0c\u5982\u4e92\u52a8\u76f4\u64ad\u9886\u57df\uff1bTS\u5207\u7247\u8f83\u591a\uff0c\u7279\u522b\u662f\u5b9e\u65f6\u89c6\u9891\u6d41\uff0c\u9700\u8981\u52a8\u6001\u7684\u751f\u6210\u548c\u5220\u9664TS\u5207\u7247\u6587\u4ef6\uff0c\u4e3a\u4e86\u5b9e\u73b0\u9ad8\u6027\u80fd\u3001\u4f4e\u788e\u7247\u5316\uff0c\u5bf9\u4e8e\u6587\u4ef6\u5b58\u50a8\u7684\u903b\u8f91\u9700\u8981\u66f4\u52a0\u590d\u6742\u7684\u8bbe\u8ba1<\/section>\n<\/li>\n<\/ul>\n

      \u5173\u4e8e HLS \u7684\u8be6\u7ec6\u4ecb\u7ecd\u53ef\u53c2\u8003\uff1a HTTP Live Streaming draft-pantos-http-live-streaming-20\uff0c\u89c4\u8303\u4e2d\u6587\u7248\u83b7\u53d6\u65b9\u5f0f\uff1a \u5173\u6ce8\u516c\u4f17\u53f7\u58f9\u96f6\u4ed3<\/strong>\uff0c\u53d1\u9001HLS<\/strong>\uff0c\u83b7\u53d6\u89c4\u8303\u6587\u6863\u53caHLS\u76f8\u5173\u6587\u7ae0\u3002<\/p>\n

      <\/span>2 HLS\u67b6\u6784\u6d41\u7a0b<\/span><\/span><\/h2>\n

      HLS\u6574\u4f53\u6d41\u7a0b\u6846\u56fe\u5982\u4e0b\uff1a

        \n
      • \n
        \u5a92\u4f53\u7f16\u7801\u5668(media decoder):\u5a92\u4f53\u7f16\u7801\u5668\u83b7\u53d6\u97f3\u89c6\u9891\u8bbe\u5907\u7684\u5b9e\u65f6\u4fe1\u53f7\uff0c\u901a\u8fc7\u9884\u8bbe\u7684\u7f16\u7801\u683c\u5f0f\u8fdb\u884c\u7f16\u7801\uff0c\u6216\u8005\u901a\u8fc7\u6d41\u5a92\u4f53\u534f\u8bae\u63a5\u5165\u5df2\u7f16\u7801\u597d\u7684\u97f3\u89c6\u9891\u6d41\uff0c\u6839\u636e\u6d41\u5a92\u4f53\u9884\u8bbe\u6761\u4ef6\u786e\u5b9a\u662f\u5426\u9700\u8981\u8f6c\u7801\uff0c\u7531\u7f16\u7801\u6216\u8005\u8f6c\u7801\u64cd\u4f5c\uff0c\u5f97\u5230\u7f16\u7801\u540e\u7684\u97f3\u89c6\u9891\u6d41\uff0c\u7136\u540e\u6839\u636eTS\u5c01\u88c5\u683c\u5f0f\u5bf9\u97f3\u89c6\u9891\u6d41\u8fdb\u884c\u5c01\u88c5\uff0c\u5c01\u88c5\u540e\u53d1\u9001\u5230\u5207\u7247\u5668\u8fdb\u884c\u5207\u7247\u3002<\/section>\n<\/li>\n
      • \n
        \u6d41\u5207\u7247\u5668(stream segmenter):\u63a5\u6536\u5a92\u4f53\u7f16\u7801\u5668\u6253\u5305\u597d\u7684TS\u6d41\uff0c\u6216\u8005\u8bfb\u53d6TS\u6d41\u7684\u5f55\u50cf\u6587\u4ef6\uff0c\u6309\u7167\u9884\u8bbe\u65f6\u95f4\u95f4\u9694\u628aTS\u6d41\u5207\u7247\u6210\u7b49\u65f6\u95f4\u95f4\u9694\u7684TS\u6d41\u5207\u7247\u6587\u4ef6\uff0c\u5e76\u751f\u6210\u6216\u66f4\u65b0\u7d22\u5f15\u6587\u4ef6(m3u8\u6587\u4ef6\/playlist\u64ad\u653e\u5217\u8868\u6587\u4ef6)\uff0c\u6bcf\u4e2a\u65b0\u7684\u5207\u7247\u751f\u6210\u4e4b\u540e\uff0c\u7d22\u5f15\u6587\u4ef6\u90fd\u8981\u66f4\u65b0\uff0c\u7d22\u5f15\u6587\u4ef6\u7528\u4e8e\u5b9a\u4f4d\u5207\u7247\u6587\u4ef6\u7684\u4f4d\u7f6e\u53ca\u6709\u6548\u6027\u5224\u65ad<\/section>\n<\/li>\n
      • \n
        web\u670d\u52a1\u5668\uff1a\u7528\u6765\u63d0\u4f9bHTTP\u670d\u52a1\u5668\uff0c\u5e76\u63d0\u4f9b\u7d22\u5f15\u6587\u4ef6\u548c\u5207\u7247\u6587\u4ef6\u4e0b\u8f7d\u7684\u670d\u52a1\uff0c\u8fd9\u91cc\u53ef\u91c7\u7528nginx\u6765\u642d\u5efa\u3002<\/section>\n<\/li>\n<\/ul>\n

        \u4ee5\u4e0aHLS\u6d41\u5a92\u4f53\u67b6\u6784\u53ea\u662f\u901a\u7528\u7684\u6846\u67b6\uff0c\u53ef\u6839\u636eHLS\u539f\u7406\u81ea\u884c\u8bbe\u8ba1HLS\u6d41\u5a92\u4f53\u67b6\u6784\u3002<\/p>\n

        \u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u7d22\u5f15\u6587\u4ef6\u7684\u683c\u5f0f\uff0c\u6709\u5173TS\u5c01\u88c5\u683c\u5f0f\u53caHLS\u670d\u52a1\u642d\u5efa\u65b9\u5f0f\u540e\u7eed\u6587\u7ae0\u4e2d\u4ecb\u7ecd\u3002<\/p>\n

        <\/span>3 \u7d22\u5f15\u6587\u4ef6(m3u8\u6587\u4ef6)\u89e3\u6790<\/span><\/span><\/h2>\n

        HLS \u534f\u8bae\u7684\u4e3b\u8981\u5185\u5bb9\u662f\u5173\u4e8e M3U8\u8fd9\u4e2a\u6587\u672c\u534f\u8bae\u7684, \u6587\u672c\u534f\u8bae\u975e\u5e38\u7b80\u6d01\uff0c\u4ee5\u4e0b\u9762\u7684\u7d22\u5f15\u6587\u4ef6\u4e3a\u4f8b\u5b50\u8fdb\u884c\u8bb2\u89e3\u3002<\/p>\n

        <\/span>\u5982\u679c\u64ad\u653e\u5217\u8868\u7d22\u5f15\u6587\u4ef6\u6ca1\u6709\u5305\u542bEXT-X-ENDLIST\u6807\u7b7e\uff08hls\u7684live\u6d41\uff09\uff0c\u90a3\u4e48\u670d\u52a1\u5668\u5e94\u8be5\u4f7f\u4e00\u4e2a\u65b0\u7248\u672c\u7684\u64ad\u653e\u5217\u8868\u6587\u4ef6\u53ef\u7528\uff0c\u5e76\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5a92\u4f53\u6587\u4ef6\u7684URL\uff0c\u65b0\u7684\u64ad\u653e\u5217\u8868\u7d22\u5f15\u6587\u4ef6\u5fc5\u987b\u4e0e\u524d\u4e00\u4e2a\u64ad\u653e\u5217\u8868\u7d22\u5f15\u6587\u4ef6\u5728\u76f8\u5bf9\u7684\u65f6\u95f4\u5185\u6709\u6548\uff1a\u4ece\u4e0a\u4e00\u4e2a\u64ad\u653e\u5217\u8868\u6587\u7d22\u5f15\u4ef6\u5f00\u59cb\u6709\u6548\u7684\u65f6\u95f4\u7b97\u8d77\uff0c\u4e0d\u65e9\u4e8e0.5\u500d\u6301\u7eed\u65f6\u95f4\uff0c\u4e0d\u665a\u4e8e1.5\u500d\u6301\u7eed\u65f6\u95f4\uff0c\u4e5f\u5c31\u662f\u8bf4hls\u7684live\u6d41\u8981\u65f6\u523b\u66f4\u65b0m3u8\u6587\u4ef6\uff0c\u800c\u66f4\u65b0\u65f6\u95f4\u8981\u4fdd\u6301\u5728[0.5,1.5]\u4e2ats\u6301\u7eed\u65f6\u95f4\u5185\u3002
        \u5982\u679c\u670d\u52a1\u5668\u671f\u671b\u79fb\u9664TS\u5207\u7247\uff0c\u5b83\u5fc5\u987b\u4f7f\u64ad\u653e\u5217\u8868\u7d22\u5f15\u6587\u4ef6\u5bf9\u4e8e\u5ba2\u6237\u7aef\u4e0d\u53ef\u7528\uff0c\u5728\u64ad\u653e\u5217\u8868\u88ab\u6e05\u9664\u65f6\uff0c\u5b83\u5e94\u8be5\u786e\u4fdd\u64ad\u653e\u5217\u8868\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u5a92\u4f53\u6587\u4ef6\u5bf9\u4e8e\u5ba2\u6237\u7aef\u6765\u8bf4\u81f3\u5c11\u5728\u4e00\u4e2a\u64ad\u653e\u5217\u8868\u6587\u4ef6\u6301\u7eed\u65f6\u95f4\u5185\u662f\u53ef\u7528\u7684\u3002
        ...
        \u670d\u52a1\u5668\u53ef\u4ee5\u9650\u5236\u6700\u8fd1\u4e00\u6bb5\u65f6\u95f4\u6dfb\u52a0\u5230\u64ad\u653e\u5217\u8868\u6587\u4ef6\u4e2d\u7684\u5a92\u4f53\u6587\u4ef6\u7684\u53ef\u7528\u6027\uff0c\u4e3a\u4e86\u8fbe\u5230\u8fd9\u4e2a\u76ee\u7684\uff0c\u64ad\u653e\u5217\u8868\u6587\u4ef6\u5fc5\u987b\u5305\u542b\u51c6\u786e\u7684EXT-X-MEDIA-SEQUENCE\u6807\u7b7e\u3002\u6807\u7b7e\u7684\u503c\u662f\u6309\u7167\u4ece\u64ad\u653e\u5217\u8868\u4e2d\u79fb\u9664\u7684\u5a92\u4f53\u6587\u4ef6\u7684URL\u9012\u589e\u7684\u3002
        \u5a92\u4f53\u6587\u4ef6\u7684URL\u5fc5\u987b\u6309\u7167\u5176\u52a0\u5165\u7684\u987a\u5e8f\u79fb\u9664\u3002\u5f53\u670d\u52a1\u5668\u4ece\u64ad\u653e\u5217\u8868\u79fb\u9664URL\u65f6\uff0c\u5a92\u4f53\u6587\u4ef6\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u5fc5\u987b\u4fdd\u6301\u53ef\u7528\uff0c\u8be5\u65f6\u95f4\u7b49\u4e8e\u5a92\u4f53\u6587\u4ef6\u7684\u65f6\u95f4\u52a0\u4e0a\u5305\u542b\u8be5\u5a92\u4f53\u6587\u4ef6\u7684\u6700\u957f\u64ad\u653e\u5217\u8868\u6587\u4ef6\u7684\u65f6\u95f4\u3002
        \u5f53\u5a92\u4f53\u6587\u4ef6\u901a\u8fc7http\u4f20\u8f93\u7ed9\u5ba2\u6237\u7aef\u540e\uff0c\u5982\u679c\u670d\u52a1\u5668\u6253\u7b97\u79fb\u9664\u8be5\u6587\u4ef6\uff0c\u90a3\u4e48\u5b83\u5e94\u8be5\u786e\u4fddhttp\u54cd\u5e94\u5934\u5305\u542b\u53cd\u5e94\u751f\u5b58\u65f6\u95f4\u7684\u8fc7\u671f\u5934\u3002
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        <\/code><\/pre>\n
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