{"id":790,"date":"2026-01-25T09:51:07","date_gmt":"2026-01-25T01:51:07","guid":{"rendered":"https:\/\/ixriver.com\/?p=790"},"modified":"2026-01-25T09:51:07","modified_gmt":"2026-01-25T01:51:07","slug":"%e8%a7%86%e9%a2%91%e7%bc%96%e7%a0%81","status":"publish","type":"post","link":"https:\/\/finance.ixriver.com\/?p=790","title":{"rendered":"\u89c6\u9891\u7f16\u7801"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#Video_Encoding\" title=\"Video Encoding\">Video Encoding<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E6%A6%82%E8%BF%B0\" title=\"\u6982\u8ff0\">\u6982\u8ff0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%BC%96%E7%A0%81%E6%A0%87%E5%87%86%E6%A6%82%E8%BF%B0\" title=\"\u7f16\u7801\u6807\u51c6\u6982\u8ff0\">\u7f16\u7801\u6807\u51c6\u6982\u8ff0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%BC%96%E7%A0%81%E6%96%B9%E5%BC%8F%E5%AF%B9%E6%AF%94\" title=\"\u7f16\u7801\u65b9\u5f0f\u5bf9\u6bd4\">\u7f16\u7801\u65b9\u5f0f\u5bf9\u6bd4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#SVC%E5%8F%AF%E4%BC%B8%E7%BC%A9%E7%BC%96%E7%A0%81\" title=\"SVC\u53ef\u4f38\u7f29\u7f16\u7801\">SVC\u53ef\u4f38\u7f29\u7f16\u7801<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%BC%96%E7%A0%81%E6%A0%B8%E5%BF%83%E6%A6%82%E5%BF%B5\" title=\"\u7f16\u7801\u6838\u5fc3\u6982\u5ff5\">\u7f16\u7801\u6838\u5fc3\u6982\u5ff5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E5%85%B3%E9%94%AE%E5%8F%82%E6%95%B0\" title=\"\u5173\u952e\u53c2\u6570\">\u5173\u952e\u53c2\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E5%8F%82%E6%95%B0%E7%BB%84%E5%90%88%E5%BB%BA%E8%AE%AE\" title=\"\u53c2\u6570\u7ec4\u5408\u5efa\u8bae\">\u53c2\u6570\u7ec4\u5408\u5efa\u8bae<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E6%8E%A8%E8%8D%90%E7%A0%81%E7%8E%87%E8%AE%BE%E7%BD%AE\" title=\"\u63a8\u8350\u7801\u7387\u8bbe\u7f6e\">\u63a8\u8350\u7801\u7387\u8bbe\u7f6e<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#H264AVC%E8%AF%A6%E8%A7%A3\" title=\"H.264\/AVC\u8be6\u89e3\">H.264\/AVC\u8be6\u89e3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%BC%96%E7%A0%81%E5%8E%9F%E7%90%86%E4%B8%8E%E7%89%B9%E6%80%A7\" title=\"\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027\">\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E8%BD%AF%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8\" title=\"\u8f6f\u4ef6\u7f16\u7801\u5668\">\u8f6f\u4ef6\u7f16\u7801\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%A1%AC%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8\" title=\"\u786c\u4ef6\u7f16\u7801\u5668\">\u786c\u4ef6\u7f16\u7801\u5668<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#H265HEVC%E8%AF%A6%E8%A7%A3\" title=\"H.265\/HEVC\u8be6\u89e3\">H.265\/HEVC\u8be6\u89e3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%BC%96%E7%A0%81%E5%8E%9F%E7%90%86%E4%B8%8E%E7%89%B9%E6%80%A7-2\" title=\"\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027\">\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#H265%E7%89%B9%E6%9C%89%E7%89%B9%E6%80%A7\" title=\"H.265\u7279\u6709\u7279\u6027\">H.265\u7279\u6709\u7279\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E8%BD%AF%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8-2\" title=\"\u8f6f\u4ef6\u7f16\u7801\u5668\">\u8f6f\u4ef6\u7f16\u7801\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/finance.ixriver.com\/?p=790\/#%E7%A1%AC%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8-2\" title=\"\u786c\u4ef6\u7f16\u7801\u5668\">\u786c\u4ef6\u7f16\u7801\u5668<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Video_Encoding\"><\/span>Video Encoding<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"%E6%A6%82%E8%BF%B0\"><\/span>\u6982\u8ff0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u89c6\u9891\u7f16\u7801\u5c06\u539f\u59cb\u89c6\u9891\u5e27\u6570\u636e\u538b\u7f29\u4e3a\u7279\u5b9a\u683c\u5f0f\uff0c\u4ee5\u51cf\u5c11\u6570\u636e\u91cf\u548c\u4f20\u8f93\u5e26\u5bbd\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E6%A0%87%E5%87%86%E6%A6%82%E8%BF%B0\"><\/span>\u7f16\u7801\u6807\u51c6\u6982\u8ff0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u89c6\u9891\u7f16\u7801\u662f\u5c06\u539f\u59cb\u89c6\u9891\u6570\u636e\u538b\u7f29\u4e3a\u66f4\u5c0f\u6570\u636e\u91cf\u7684\u8fc7\u7a0b\uff0c\u901a\u8fc7\u53bb\u9664\u5197\u4f59\u4fe1\u606f\u548c\u5229\u7528\u4eba\u773c\u89c6\u89c9\u7279\u6027\u5b9e\u73b0\u9ad8\u6548\u538b\u7f29\u3002\u4e3b\u6d41\u7f16\u7801\u6807\u51c6\u5305\u62ec\uff1a<\/p>\n<p><strong>H.264\/AVC (Advanced Video Coding)<\/strong><br \/>\n&#8211; \u57fa\u4e8e\u5757\u7684\u8fd0\u52a8\u8865\u507f\u548c\u53d8\u6362\u7f16\u7801<br \/>\n&#8211; \u517c\u5bb9\u6027\u597d\uff0c\u538b\u7f29\u6548\u7387\u9ad8\uff0c\u5e7f\u6cdb\u4f7f\u7528<br \/>\n&#8211; \u5e94\u7528\u573a\u666f\uff1a\u89c6\u9891\u4f1a\u8bae\u3001\u76f4\u64ad\u3001\u70b9\u64ad\u3001\u84dd\u5149\u5149\u76d8<\/p>\n<p><strong>H.265\/HEVC (High Efficiency Video Coding)<\/strong><br \/>\n&#8211; \u5728H.264\u57fa\u7840\u4e0a\u6539\u8fdb\uff0c\u4f7f\u7528\u66f4\u5927\u7684\u7f16\u7801\u5757\uff08\u6700\u592764&#215;64\uff09<br \/>\n&#8211; \u76f8\u6bd4H.264\u538b\u7f29\u7387\u63d0\u5347\u7ea650%\uff0c\u4f46\u8ba1\u7b97\u590d\u6742\u5ea6\u66f4\u9ad8<br \/>\n&#8211; \u5e94\u7528\u573a\u666f\uff1a4K\u89c6\u9891\u3001\u8d85\u9ad8\u6e05\u76f4\u64ad\u3001\u89c6\u9891\u5b58\u50a8<\/p>\n<p><strong>VP8\/VP9<\/strong><br \/>\n&#8211; Google\u5f00\u53d1\u7684\u5f00\u653e\u6807\u51c6\uff0c\u57fa\u4e8e\u5757\u7684\u8fd0\u52a8\u8865\u507f<br \/>\n&#8211; VP8\u4e0eH.264\u6027\u80fd\u76f8\u5f53\uff0cVP9\u538b\u7f29\u7387\u63d0\u5347\u7ea650%\uff0c\u65e0\u4e13\u5229\u8d39\u7528<br \/>\n&#8211; \u5e94\u7528\u573a\u666f\uff1aWebRTC\u3001YouTube\u3001Web\u89c6\u9891<\/p>\n<p><strong>AV1 (AOMedia Video 1)<\/strong><br \/>\n&#8211; \u5f00\u653e\u5a92\u4f53\u8054\u76df\u5f00\u53d1\uff0c\u57fa\u4e8eVP9\u6539\u8fdb<br \/>\n&#8211; \u76f8\u6bd4H.265\u538b\u7f29\u7387\u63d0\u5347\u7ea630%\uff0c\u4f46\u7f16\u7801\u590d\u6742\u5ea6\u6781\u9ad8<br \/>\n&#8211; \u5e94\u7528\u573a\u666f\uff1a\u6d41\u5a92\u4f53\u670d\u52a1\uff08Netflix\u3001YouTube\uff09\u3001Web\u89c6\u9891<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E6%96%B9%E5%BC%8F%E5%AF%B9%E6%AF%94\"><\/span>\u7f16\u7801\u65b9\u5f0f\u5bf9\u6bd4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7f16\u7801\u6807\u51c6<\/th>\n<th>\u538b\u7f29\u7387<\/th>\n<th>\u7f16\u7801\u590d\u6742\u5ea6<\/th>\n<th>\u89e3\u7801\u590d\u6742\u5ea6<\/th>\n<th>\u5ef6\u8fdf<\/th>\n<th>\u517c\u5bb9\u6027<\/th>\n<th>\u4e13\u5229<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H.264<\/td>\n<td>\u57fa\u51c6<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u4f4e<\/td>\n<td>\u4f4e<\/td>\n<td>\u4f18\u79c0<\/td>\n<td>\u6709<\/td>\n<\/tr>\n<tr>\n<td>H.265<\/td>\n<td>\u9ad8\uff08+50%\uff09<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u4f4e<\/td>\n<td>\u826f\u597d<\/td>\n<td>\u6709<\/td>\n<\/tr>\n<tr>\n<td>VP8<\/td>\n<td>\u4e0eH.264\u76f8\u5f53<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u4f4e<\/td>\n<td>\u4f4e<\/td>\n<td>\u826f\u597d<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>VP9<\/td>\n<td>\u9ad8\uff08+50%\uff09<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u4f4e<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>AV1<\/td>\n<td>\u5f88\u9ad8\uff08+80%\uff09<\/td>\n<td>\u6781\u9ad8<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u8f83\u5dee<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"SVC%E5%8F%AF%E4%BC%B8%E7%BC%A9%E7%BC%96%E7%A0%81\"><\/span>SVC\u53ef\u4f38\u7f29\u7f16\u7801<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u5206\u5c42\u7f16\u7801\u539f\u7406<\/strong><br \/>\n&#8211; SVC\u5c06\u89c6\u9891\u7f16\u7801\u4e3a\u591a\u4e2a\u5c42\uff1a\u57fa\u7840\u5c42\u548c\u589e\u5f3a\u5c42<br \/>\n&#8211; \u57fa\u7840\u5c42\u63d0\u4f9b\u57fa\u672c\u8d28\u91cf\uff0c\u589e\u5f3a\u5c42\u63d0\u5347\u8d28\u91cf<br \/>\n&#8211; \u53ef\u4ee5\u6839\u636e\u7f51\u7edc\u72b6\u51b5\u6216\u8bbe\u5907\u80fd\u529b\u9009\u62e9\u89e3\u7801\u5c42\u6570<\/p>\n<p><strong>\u53ef\u4f38\u7f29\u6027\u7c7b\u578b<\/strong><br \/>\n&#8211; <strong>\u65f6\u57df\u53ef\u4f38\u7f29\u6027\uff08Temporal Scalability\uff09<\/strong>\uff1a\u4e0d\u540c\u5e27\u7387\uff0c\u901a\u8fc7\u8df3\u8fc7\u67d0\u4e9b\u5e27\u5b9e\u73b0<br \/>\n&#8211; <strong>\u7a7a\u57df\u53ef\u4f38\u7f29\u6027\uff08Spatial Scalability\uff09<\/strong>\uff1a\u4e0d\u540c\u5206\u8fa8\u7387\uff0c\u901a\u8fc7\u4e0b\u91c7\u6837\u5b9e\u73b0<br \/>\n&#8211; <strong>\u8d28\u91cf\u53ef\u4f38\u7f29\u6027\uff08Quality Scalability\uff09<\/strong>\uff1a\u4e0d\u540c\u7801\u7387\uff0c\u901a\u8fc7\u8c03\u6574\u91cf\u5316\u53c2\u6570\u5b9e\u73b0<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E6%A0%B8%E5%BF%83%E6%A6%82%E5%BF%B5\"><\/span>\u7f16\u7801\u6838\u5fc3\u6982\u5ff5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E5%85%B3%E9%94%AE%E5%8F%82%E6%95%B0\"><\/span>\u5173\u952e\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u5173\u952e\u5e27\uff08I\u5e27\u3001P\u5e27\u3001B\u5e27\uff09<\/strong><br \/>\n&#8211; <strong>I\u5e27\uff08Intra-frame\uff09<\/strong>\uff1a\u72ec\u7acb\u7f16\u7801\u5e27\uff0c\u4e0d\u4f9d\u8d56\u5176\u4ed6\u5e27\uff0c\u538b\u7f29\u7387\u4f4e\u4f46\u53ef\u72ec\u7acb\u89e3\u7801<br \/>\n&#8211; <strong>P\u5e27\uff08Predicted-frame\uff09<\/strong>\uff1a\u53c2\u8003\u524d\u4e00\u5e27\u8fdb\u884c\u9884\u6d4b\u7f16\u7801\uff0c\u538b\u7f29\u7387\u9ad8<br \/>\n&#8211; <strong>B\u5e27\uff08Bidirectional-frame\uff09<\/strong>\uff1a\u53c2\u8003\u524d\u540e\u4e24\u5e27\u8fdb\u884c\u53cc\u5411\u9884\u6d4b\uff0c\u538b\u7f29\u7387\u6700\u9ad8\u4f46\u5ef6\u8fdf\u589e\u52a0<\/p>\n<p><strong>GOP\uff08Group of Pictures\uff09\u7ed3\u6784<\/strong><br \/>\n&#8211; GOP\u662f\u4e00\u7ec4\u8fde\u7eed\u7684\u56fe\u50cf\u5e27\uff0c\u901a\u5e38\u4ee5I\u5e27\u5f00\u59cb<br \/>\n&#8211; <strong>GOP\u957f\u5ea6<\/strong>\uff1aI\u5e27\u95f4\u9694\uff0c\u5f71\u54cd\u968f\u673a\u8bbf\u95ee\u80fd\u529b\u548c\u538b\u7f29\u7387<br \/>\n&#8211; <strong>GOP\u7ed3\u6784<\/strong>\uff1a\u5982IPPP\u3001IBBP\u7b49\uff0c\u5f71\u54cd\u7f16\u7801\u6548\u7387\u548c\u5ef6\u8fdf<\/p>\n<p><strong>Profile\uff08\u6863\u6b21\uff09\u548cLevel\uff08\u7ea7\u522b\uff09<\/strong><\/p>\n<p><strong>H.264 Profile<\/strong><br \/>\n&#8211; <strong>Baseline Profile<\/strong>\uff1a<br \/>\n  &#8211; \u7279\u70b9\uff1a\u4ec5\u652f\u6301I\u5e27\u548cP\u5e27\uff0c\u65e0B\u5e27\uff0c\u65e0CABAC\u71b5\u7f16\u7801<br \/>\n  &#8211; \u5ef6\u8fdf\uff1a\u4f4e\uff08\u65e0B\u5e27\u53cc\u5411\u53c2\u8003\uff09<br \/>\n  &#8211; \u590d\u6742\u5ea6\uff1a\u4f4e<br \/>\n  &#8211; \u5e94\u7528\u573a\u666f\uff1a\u5b9e\u65f6\u901a\u4fe1\u3001\u79fb\u52a8\u7aef\u5e94\u7528\u3001WebRTC\uff08\u4f4e\u5ef6\u8fdf\u3001\u517c\u5bb9\u6027\u597d\uff09<br \/>\n&#8211; <strong>Main Profile<\/strong>\uff1a<br \/>\n  &#8211; \u7279\u70b9\uff1a\u652f\u6301B\u5e27\uff0c\u652f\u6301CABAC\u71b5\u7f16\u7801<br \/>\n  &#8211; \u5ef6\u8fdf\uff1a\u4e2d\u7b49\uff08B\u5e27\u589e\u52a0\u5ef6\u8fdf\uff09<br \/>\n  &#8211; \u590d\u6742\u5ea6\uff1a\u4e2d\u7b49<br \/>\n  &#8211; \u5e94\u7528\u573a\u666f\uff1a\u70b9\u64ad\u573a\u666f\u3001\u4e00\u822c\u89c6\u9891\u7f16\u7801\uff08\u753b\u8d28\u4f18\u5148\uff09<br \/>\n&#8211; <strong>High Profile<\/strong>\uff1a<br \/>\n  &#8211; \u7279\u70b9\uff1a\u652f\u6301\u66f4\u591a\u9ad8\u7ea7\u7279\u6027\uff088&#215;8\u53d8\u6362\u3001\u52a0\u6743\u9884\u6d4b\u3001\u81ea\u9002\u5e94\u91cf\u5316\u7b49\uff09<br \/>\n  &#8211; \u5ef6\u8fdf\uff1a\u4e2d\u7b49<br \/>\n  &#8211; \u590d\u6742\u5ea6\uff1a\u9ad8<br \/>\n  &#8211; \u5e94\u7528\u573a\u666f\uff1a\u9ad8\u8d28\u91cf\u89c6\u9891\u3001\u84dd\u5149\u5149\u76d8\u3001\u4e13\u4e1a\u89c6\u9891\u5236\u4f5c<\/p>\n<p><strong>H.265 Profile<\/strong><br \/>\n&#8211; <strong>Main Profile<\/strong>\uff1a<br \/>\n  &#8211; \u7279\u70b9\uff1a\u652f\u6301\u6240\u6709\u6838\u5fc3\u7279\u6027\uff0c8bit\u8272\u6df1<br \/>\n  &#8211; \u5e94\u7528\u573a\u666f\uff1a\u4e3b\u6d41\u9009\u62e9\uff0c\u786c\u4ef6\u652f\u6301\u597d<br \/>\n&#8211; <strong>Main 10 Profile<\/strong>\uff1a<br \/>\n  &#8211; \u7279\u70b9\uff1a\u652f\u630110bit\u8272\u6df1\uff0cHDR\u652f\u6301<br \/>\n  &#8211; \u5e94\u7528\u573a\u666f\uff1a\u9ad8\u7aef\u8bbe\u5907\u3001HDR\u89c6\u9891\u3001\u9ad8\u8d28\u91cf\u5185\u5bb9<\/p>\n<p><strong>Level\uff08\u7ea7\u522b\uff09<\/strong><br \/>\n&#8211; Level\u5b9a\u4e49\u6700\u5927\u5206\u8fa8\u7387\u3001\u5e27\u7387\u3001\u7801\u7387\u7b49\u53c2\u6570\u9650\u5236<br \/>\n&#8211; \u5e38\u89c1Level\u793a\u4f8b\uff08H.264\uff09\uff1a<br \/>\n  &#8211; Level 3.0\uff1a\u6700\u9ad8720p@30fps\uff0c\u7801\u738710Mbps<br \/>\n  &#8211; Level 3.1\uff1a\u6700\u9ad8720p@30fps\uff0c\u7801\u738714Mbps<br \/>\n  &#8211; Level 4.0\uff1a\u6700\u9ad81080p@30fps\uff0c\u7801\u738720Mbps<br \/>\n  &#8211; Level 4.1\uff1a\u6700\u9ad81080p@30fps\uff0c\u7801\u738750Mbps<\/p>\n<p><strong>\u7f16\u7801\u53c2\u6570<\/strong><br \/>\n&#8211; <strong>QP\uff08Quantization Parameter\uff09<\/strong>\uff1a\u91cf\u5316\u53c2\u6570\uff0c\u503c\u8d8a\u5927\u538b\u7f29\u7387\u8d8a\u9ad8\u4f46\u8d28\u91cf\u8d8a\u4f4e<br \/>\n&#8211; <strong>CRF\uff08Constant Rate Factor\uff09<\/strong>\uff1a\u6052\u5b9a\u8d28\u91cf\u56e0\u5b50\uff0cFFmpeg\u5e38\u7528\u53c2\u6570\uff0c\u81ea\u52a8\u8c03\u6574\u7801\u7387\u4fdd\u8bc1\u8d28\u91cf<br \/>\n&#8211; <strong>Preset<\/strong>\uff1a\u7f16\u7801\u901f\u5ea6\u9884\u8bbe\uff08ultrafast\u3001fast\u3001medium\u3001slow\u7b49\uff09\uff0c\u5f71\u54cd\u7f16\u7801\u901f\u5ea6\u548c\u8d28\u91cf<\/p>\n<p><strong>\u7801\u7387\u63a7\u5236\u6a21\u5f0f\uff08\u5e38\u89c1\u8bf4\u6cd5\uff09<\/strong><br \/>\n&#8211; <strong>CBR\uff08Constant Bitrate\uff09<\/strong>\uff1a\u4ee5\u201c\u7801\u7387\u6052\u5b9a\u201d\u4e3a\u76ee\u6807\uff0c\u901a\u5e38\u9700\u8981\u914d\u5408 <strong>VBV\uff08<code>-maxrate<\/code>\/<code>-bufsize<\/code>\uff09<\/strong> \u7ea6\u675f\u77ac\u65f6\u7801\u7387\uff1b\u5b9e\u9645\u6548\u679c\u66f4\u63a5\u8fd1\u201c\u53d7\u7f13\u51b2\u7ea6\u675f\u7684\u8fd1\u4f3c\u6052\u5b9a\u7801\u7387\u201d\uff0c\u5185\u5bb9\u590d\u6742\u65f6\u753b\u8d28\u66f4\u5bb9\u6613\u6ce2\u52a8\u3002<br \/>\n&#8211; <strong>ABR\uff08Average Bitrate\uff09<\/strong>\uff1a\u4ee5\u201c\u5e73\u5747\u7801\u7387\u63a5\u8fd1\u76ee\u6807\u201d\u4e3a\u76ee\u6807\uff08\u5e38\u89c1\u4e8e <code>-b:v<\/code>\uff09\uff1b<strong>\u5355\u904d\uff081-pass\uff09\u53ea\u80fd\u8fd1\u4f3c<\/strong>\uff0c\u60f3\u8ba9\u6587\u4ef6\u5927\u5c0f\/\u5e73\u5747\u7801\u7387\u66f4\u8d34\u8fd1\u76ee\u6807\u4e00\u822c\u7528 <strong>\u4e24\u904d\uff082-pass\uff09<\/strong>\u3002<br \/>\n&#8211; <strong>VBR\uff08Variable Bitrate\uff09<\/strong>\uff1a\u6cdb\u6307\u201c\u7801\u7387\u53ef\u53d8\u201d\uff0c\u5e76\u4e0d\u7b49\u4ef7\u4e8e\u201c\u8d28\u91cf\u56fa\u5b9a\u201d\u3002\u5b9e\u73b0\u65b9\u5f0f\u5f88\u591a\uff1a<br \/>\n  &#8211; <strong>\u4e24\u904d\u7801\u7387\u9a71\u52a8 VBR<\/strong>\uff1a\u4ee5\u76ee\u6807\u5e73\u5747\u7801\u7387\/\u6587\u4ef6\u5927\u5c0f\u4e3a\u4e3b\uff08<code>-b:v<\/code> + <code>-pass 1\/2<\/code>\uff09\u3002<br \/>\n  &#8211; <strong>\u8d28\u91cf\u9a71\u52a8 VBR<\/strong>\uff1a\u4ee5\u8d28\u91cf\u4e3a\u4e3b\uff08\u5982 x264\/x265 \u7684 <code>-crf<\/code>\/<code>-qp<\/code>\uff09\uff0c\u7801\u7387\u968f\u5185\u5bb9\u53d8\u5316\u3002<br \/>\n  &#8211; <strong>\u53d7\u9650 VBR\uff08Constrained \/ Capped\uff09<\/strong>\uff1a\u5728\u8d28\u91cf\u9a71\u52a8\uff08CRF\uff09\u57fa\u7840\u4e0a\u52a0 VBV \u4e0a\u9650\uff08<code>-crf<\/code> + <code>-maxrate<\/code> + <code>-bufsize<\/code>\uff09\uff0c\u7528\u4e8e\u201c\u8d28\u91cf\u4f18\u5148\u4f46\u6709\u7801\u7387\u5cf0\u503c\u4e0a\u9650\u201d\u7684\u573a\u666f\u3002<br \/>\n&#8211; <strong>CRF\uff08Constant Rate Factor\uff09<\/strong>\uff1ax264\/x265 \u63a8\u8350\u7684\u201c\u6052\u5b9a\u4e3b\u89c2\u8d28\u91cf\u201d\u6a21\u5f0f\uff08\u8d28\u91cf\u9a71\u52a8\uff09\uff0c\u4e25\u683c\u6765\u8bf4\u4e0d\u662f\u201c\u7801\u7387\u6a21\u5f0f\u201d\uff1b\u7801\u7387\/\u6587\u4ef6\u5927\u5c0f\u4f1a\u968f\u5185\u5bb9\u53d8\u5316\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>CBR\uff08VBV \u7ea6\u675f\uff09<\/th>\n<th>VBR\uff08\u6cdb\u79f0\uff09<\/th>\n<th>ABR\uff08\u5e73\u5747\u7801\u7387\uff09<\/th>\n<th>CRF\uff08\u6052\u5b9a\u8d28\u91cf\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u7801\u7387<\/strong><\/td>\n<td>\u8fd1\u4f3c\u6052\u5b9a\uff08\u53d7 VBV \u7ea6\u675f\uff09<\/td>\n<td>\u53ef\u53d8<\/td>\n<td>\u5e73\u5747\u63a5\u8fd1\u76ee\u6807<\/td>\n<td>\u968f\u5185\u5bb9\u53d8\u5316<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8d28\u91cf<\/strong><\/td>\n<td>\u968f\u5185\u5bb9\u6ce2\u52a8<\/td>\n<td>\u53d6\u51b3\u4e8e\u5b9e\u73b0\uff08\u4e24\u904d\/CRF\/\u53d7\u9650\uff09<\/td>\n<td>\u901a\u5e38\u6bd4 CBR \u66f4\u5e73\u8861<\/td>\n<td>\u5c3d\u91cf\u6052\u5b9a\uff08\u53d7 VBV \u4e0a\u9650\u65f6\u4f1a\u6ce2\u52a8\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6587\u4ef6\u5927\u5c0f<\/strong><\/td>\n<td>\u53ef\u9884\u6d4b\uff08\u66f4\u63a5\u8fd1\u56fa\u5b9a\u7801\u7387\uff09<\/td>\n<td>\u4e24\u904d\u66f4\u53ef\u9884\u6d4b\uff1b\u5355\u904d\u4e0d\u5b8c\u5168\u53ef\u9884\u6d4b<\/td>\n<td>\u76f8\u5bf9\u53ef\u9884\u6d4b\uff08\u4f46\u4ecd\u662f\u201c\u63a5\u8fd1\u201d\uff09<\/td>\n<td>\u4e0d\u53ef\u9884\u6d4b<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9002\u7528\u573a\u666f<\/strong><\/td>\n<td>\u76f4\u64ad\/\u4f20\u8f93\u4fa7\u9650\u5e26\u5bbd<\/td>\n<td>\u70b9\u64ad\/\u5b58\u50a8\uff08\u770b\u4f60\u60f3\u63a7\u4ec0\u4e48\uff09<\/td>\n<td>\u9700\u8981\u63a5\u8fd1\u76ee\u6807\u5927\u5c0f\/\u5e73\u5747\u7801\u7387<\/td>\n<td>\u79bb\u7ebf\u8f6c\u7801\/\u5b58\u6863\uff08\u8d28\u91cf\u4f18\u5148\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5178\u578b FFmpeg \u53c2\u6570<\/strong><\/td>\n<td><code>-b:v<\/code> + <code>-maxrate<\/code> + <code>-bufsize<\/code>\uff08\u53ef\u9009 <code>-minrate<\/code>\uff09<\/td>\n<td>\u4e24\u904d\uff1a<code>-b:v<\/code> + <code>-pass 1\/2<\/code>\uff1b\u8d28\u91cf\u9a71\u52a8\uff1a<code>-crf<\/code>\uff1b\u53d7\u9650\uff1a<code>-crf<\/code> + VBV<\/td>\n<td>\u5355\u904d\uff1a<code>-b:v<\/code>\uff08\u53ef\u9009\u52a0 VBV\uff09<\/td>\n<td><code>-crf<\/code><\/td>\n<\/tr>\n<tr>\n<td><strong>\u63a7\u5236\u76ee\u6807<\/strong><\/td>\n<td>\u7801\u7387\u4e0a\u9650\/\u5e73\u6ed1<\/td>\n<td>\u7801\u7387\u53ef\u53d8\uff08\u76ee\u6807\u56e0\u5b9e\u73b0\u800c\u5f02\uff09<\/td>\n<td>\u5e73\u5747\u7801\u7387\/\u5927\u5c0f\u66f4\u8d34\u8fd1\u76ee\u6807<\/td>\n<td>\u8d28\u91cf\u4e00\u81f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"%E5%8F%82%E6%95%B0%E7%BB%84%E5%90%88%E5%BB%BA%E8%AE%AE\"><\/span>\u53c2\u6570\u7ec4\u5408\u5efa\u8bae<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>\u573a\u666f<\/th>\n<th>\u63a8\u8350\u53c2\u6570\u7ec4\u5408<\/th>\n<th>H.264\u914d\u7f6e<\/th>\n<th>H.265\u914d\u7f6e<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u5b9e\u65f6\u76f4\u64ad<\/strong><\/td>\n<td>Preset: veryfast\/faster<br \/>\u7801\u7387\u63a7\u5236: CBR\/ABR<\/td>\n<td>CRF 23-26<\/td>\n<td>CRF 28-30<\/td>\n<td>H.264\u5b9e\u65f6\u6027\u80fd\u66f4\u597d\uff0c\u4f18\u5148\u63a8\u8350<\/td>\n<\/tr>\n<tr>\n<td><strong>\u89c6\u9891\u4f1a\u8bae<\/strong><\/td>\n<td>Preset: veryfast<br \/>\u7801\u7387\u63a7\u5236: ABR<\/td>\n<td>CRF 26<\/td>\n<td>CRF 30<\/td>\n<td>\u9700\u8981\u4f4e\u5ef6\u8fdf\uff0cH.264\u66f4\u5408\u9002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5feb\u901f\u8f6c\u7801<\/strong><\/td>\n<td>Preset: fast\/medium<br \/>\u7801\u7387\u63a7\u5236: CRF<\/td>\n<td>CRF 23<\/td>\n<td>CRF 28<\/td>\n<td>\u5e73\u8861\u901f\u5ea6\u548c\u538b\u7f29\u7387<\/td>\n<\/tr>\n<tr>\n<td><strong>\u79bb\u7ebf\u8f6c\u7801<\/strong><\/td>\n<td>Preset: slow\/slower<br \/>\u7801\u7387\u63a7\u5236: CRF<\/td>\n<td>CRF 20-23<\/td>\n<td>CRF 25-28<\/td>\n<td>\u4f18\u5148\u538b\u7f29\u7387\uff0c\u4fdd\u8bc1\u8d28\u91cf<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9ad8\u8d28\u91cf\u5b58\u6863<\/strong><\/td>\n<td>Preset: veryslow<br \/>\u7801\u7387\u63a7\u5236: CRF<\/td>\n<td>CRF 18<\/td>\n<td>CRF 23<\/td>\n<td>\u6700\u4f73\u538b\u7f29\u7387\u548c\u8d28\u91cf\uff0cH.265\u8282\u7701\u7a7a\u95f4<\/td>\n<\/tr>\n<tr>\n<td><strong>4K\u89c6\u9891<\/strong><\/td>\n<td>Preset: medium\/slow<br \/>\u7801\u7387\u63a7\u5236: CRF<\/td>\n<td>CRF 20-23<\/td>\n<td>CRF 23-25<\/td>\n<td>H.265\u66f4\u9002\u54084K\u89c6\u9891<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4f4e\u5e26\u5bbd\u573a\u666f<\/strong><\/td>\n<td>Preset: medium<br \/>\u7801\u7387\u63a7\u5236: CRF<\/td>\n<td>CRF 28-30<\/td>\n<td>CRF 30-32<\/td>\n<td>\u964d\u4f4e\u7801\u7387\uff0c\u4fdd\u8bc1\u6d41\u7545\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"%E6%8E%A8%E8%8D%90%E7%A0%81%E7%8E%87%E8%AE%BE%E7%BD%AE\"><\/span>\u63a8\u8350\u7801\u7387\u8bbe\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u76f4\u64ad\u548c\u89c6\u9891\u573a\u666f\u4e0b\u7684H.264\u548cH.265\u63a8\u8350\u7801\u7387\u5bf9\u6bd4\uff08\u5355\u4f4d\uff1akbps\uff09\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5206\u8fa8\u7387<\/th>\n<th>\u5e27\u7387<\/th>\n<th>H.264\u63a8\u8350\u7801\u7387<\/th>\n<th>H.265\u63a8\u8350\u7801\u7387<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>360P (640\u00d7360)<\/strong><\/td>\n<td>15 fps<\/td>\n<td>500-800<\/td>\n<td>300-500<\/td>\n<td>\u4f4e\u5206\u8fa8\u7387\uff0c\u9002\u5408\u79fb\u52a8\u7f51\u7edc\u76f4\u64ad<\/td>\n<\/tr>\n<tr>\n<td><strong>360P (640\u00d7360)<\/strong><\/td>\n<td>24 fps<\/td>\n<td>800-1200<\/td>\n<td>500-800<\/td>\n<td>\u6807\u51c6\u5e27\u7387\uff0c\u6d41\u7545\u5ea6\u66f4\u597d<\/td>\n<\/tr>\n<tr>\n<td><strong>540P (960\u00d7540)<\/strong><\/td>\n<td>15 fps<\/td>\n<td>1000-1500<\/td>\n<td>600-1000<\/td>\n<td>\u4e2d\u7b49\u5206\u8fa8\u7387\uff0c\u5e73\u8861\u753b\u8d28\u548c\u5e26\u5bbd<\/td>\n<\/tr>\n<tr>\n<td><strong>540P (960\u00d7540)<\/strong><\/td>\n<td>24 fps<\/td>\n<td>1500-2000<\/td>\n<td>1000-1500<\/td>\n<td>\u5e38\u7528\u5206\u8fa8\u7387\uff0c\u9002\u5408\u5927\u591a\u6570\u76f4\u64ad\u573a\u666f<\/td>\n<\/tr>\n<tr>\n<td><strong>720P (1280\u00d7720)<\/strong><\/td>\n<td>15 fps<\/td>\n<td>1500-2500<\/td>\n<td>1000-2000<\/td>\n<td>\u9ad8\u6e05\u5206\u8fa8\u7387\uff0c\u4f4e\u5e27\u7387\u8282\u7701\u5e26\u5bbd<\/td>\n<\/tr>\n<tr>\n<td><strong>720P (1280\u00d7720)<\/strong><\/td>\n<td>24 fps<\/td>\n<td>2500-3500<\/td>\n<td>1500-2500<\/td>\n<td>\u9ad8\u6e05\u6807\u51c6\uff0c\u63a8\u8350\u7528\u4e8e\u76f4\u64ad<\/td>\n<\/tr>\n<tr>\n<td><strong>1080P (1920\u00d71080)<\/strong><\/td>\n<td>15 fps<\/td>\n<td>3000-4500<\/td>\n<td>2000-3000<\/td>\n<td>\u5168\u9ad8\u6e05\uff0c\u4f4e\u5e27\u7387\u7248\u672c<\/td>\n<\/tr>\n<tr>\n<td><strong>1080P (1920\u00d71080)<\/strong><\/td>\n<td>24 fps<\/td>\n<td>4500-6000<\/td>\n<td>3000-4500<\/td>\n<td>\u5168\u9ad8\u6e05\u6807\u51c6\uff0c\u9ad8\u8d28\u91cf\u89c6\u9891\u76f4\u64ad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u7801\u7387\u9009\u62e9\u6ce8\u610f\u4e8b\u9879<\/strong><br \/>\n&#8211; <strong>H.265 vs H.264\u7801\u7387\u5dee\u5f02<\/strong>\uff1aH.265\u5728\u76f8\u540c\u753b\u8d28\u4e0b\u901a\u5e38\u53ef\u8282\u770140-50%\u7684\u7801\u7387<br \/>\n&#8211; <strong>\u7f16\u7801\u5668\u9009\u62e9<\/strong>\uff1a<br \/>\n  &#8211; \u76f4\u64ad\u573a\u666f\u5efa\u8bae\u4f18\u5148\u4f7f\u7528H.264\uff08\u517c\u5bb9\u6027\u597d\u3001\u5ef6\u8fdf\u4f4e\u3001\u5b9e\u65f6\u7f16\u7801\u6027\u80fd\u4f18\u79c0\uff09<br \/>\n  &#8211; \u70b9\u64ad\u573a\u666f\u53ef\u4ee5\u4f7f\u7528H.265\uff08\u8282\u7701\u5b58\u50a8\u548c\u5e26\u5bbd\uff09<br \/>\n&#8211; <strong>\u5185\u5bb9\u590d\u6742\u5ea6<\/strong>\uff1a<br \/>\n  &#8211; \u9ad8\u52a8\u6001\u573a\u666f\uff08\u6e38\u620f\u76f4\u64ad\u3001\u4f53\u80b2\u8d5b\u4e8b\uff09\uff1a\u5efa\u8bae\u4f7f\u7528\u7801\u7387\u8303\u56f4\u7684\u4e0a\u9650\uff0c\u4fdd\u8bc1\u753b\u8d28<br \/>\n  &#8211; \u9759\u6001\u573a\u666f\uff08\u8bb2\u5ea7\u3001PPT\u3001\u804a\u5929\u76f4\u64ad\uff09\uff1a\u53ef\u4ee5\u4f7f\u7528\u7801\u7387\u8303\u56f4\u7684\u4e0b\u9650\uff0c\u8282\u7701\u5e26\u5bbd<br \/>\n  &#8211; \u4e00\u822c\u89c6\u9891\u5185\u5bb9\uff08\u65e5\u5e38\u76f4\u64ad\u3001\u89c6\u9891\u901a\u8bdd\uff09\uff1a\u4f7f\u7528\u7801\u7387\u8303\u56f4\u7684\u4e2d\u95f4\u503c<br \/>\n&#8211; <strong>\u5e27\u7387\u5f71\u54cd<\/strong>\uff1a<br \/>\n  &#8211; 24fps\u76f8\u6bd415fps\u7801\u7387\u901a\u5e38\u9700\u8981\u589e\u52a050-60%<br \/>\n  &#8211; \u9ad8\u5e27\u7387\uff0824fps\uff09\u9002\u5408\u8fd0\u52a8\u573a\u666f\uff0c\u63d0\u4f9b\u66f4\u6d41\u7545\u7684\u89c2\u770b\u4f53\u9a8c<br \/>\n  &#8211; \u4f4e\u5e27\u7387\uff0815fps\uff09\u9002\u5408\u9759\u6001\u5185\u5bb9\uff0c\u8282\u7701\u5e26\u5bbd\u548c\u8ba1\u7b97\u8d44\u6e90<br \/>\n&#8211; <strong>\u76f4\u64ad\u573a\u666f\u5efa\u8bae<\/strong>\uff1a<br \/>\n  &#8211; <strong>\u79fb\u52a8\u7f51\u7edc\u76f4\u64ad<\/strong>\uff1a\u4f18\u5148\u4f7f\u7528360P-540P\uff0cH.264\u7801\u7387800-1500kbps\uff0cH.265\u7801\u7387500-1000kbps<br \/>\n  &#8211; <strong>\u56fa\u5b9a\u7f51\u7edc\u76f4\u64ad<\/strong>\uff1a\u53ef\u4ee5\u4f7f\u7528720P-1080P\uff0cH.264\u7801\u73872500-4500kbps\uff0cH.265\u7801\u73871500-3000kbps<br \/>\n  &#8211; <strong>\u6e38\u620f\u76f4\u64ad<\/strong>\uff1a\u5efa\u8bae\u4f7f\u7528720P-1080P\uff0c\u7801\u7387\u4f7f\u7528\u8303\u56f4\u4e0a\u9650\uff0c\u4fdd\u8bc1\u753b\u8d28<br \/>\n  &#8211; <strong>\u89c6\u9891\u4f1a\u8bae<\/strong>\uff1a\u6839\u636e\u7f51\u7edc\u72b6\u51b5\u52a8\u6001\u8c03\u6574\uff0c\u5efa\u8bae\u4ece\u4f4e\u7801\u7387\u5f00\u59cb\u9010\u6b65\u63d0\u5347<\/p>\n<h2><span class=\"ez-toc-section\" id=\"H264AVC%E8%AF%A6%E8%A7%A3\"><\/span>H.264\/AVC\u8be6\u89e3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E5%8E%9F%E7%90%86%E4%B8%8E%E7%89%B9%E6%80%A7\"><\/span>\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>\u7f16\u7801\u539f\u7406<\/strong>\uff1a\u57fa\u4e8e\u5757\u7684\u8fd0\u52a8\u8865\u507f\u548c\u53d8\u6362\u7f16\u7801<\/li>\n<li><strong>Profile<\/strong>\uff1aBaseline\u3001Main\u3001High\u7b49\uff0c\u4e0d\u540cProfile\u652f\u6301\u4e0d\u540c\u7279\u6027<\/li>\n<li><strong>Level<\/strong>\uff1a\u5b9a\u4e49\u6700\u5927\u5206\u8fa8\u7387\u3001\u5e27\u7387\u3001\u7801\u7387\u7b49\u53c2\u6570\u9650\u5236<\/li>\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u517c\u5bb9\u6027\u597d\uff0c\u538b\u7f29\u6548\u7387\u9ad8\uff0c\u5e7f\u6cdb\u4f7f\u7528<\/li>\n<li><strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a\u89c6\u9891\u4f1a\u8bae\u3001\u76f4\u64ad\u3001\u70b9\u64ad\u3001\u84dd\u5149\u5149\u76d8<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E8%BD%AF%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8\"><\/span>\u8f6f\u4ef6\u7f16\u7801\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>1. x264\uff08libx264\uff09<\/strong><br \/>\n&#8211; <strong>\u7c7b\u578b<\/strong>\uff1a\u5f00\u6e90\u8f6f\u4ef6\u7f16\u7801\u5668<br \/>\n&#8211; <strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n  &#8211; \u538b\u7f29\u6548\u7387\u6700\u9ad8\uff0c\u8d28\u91cf\u4f18\u79c0\uff0c\u662f\u4e1a\u754c\u6807\u51c6\u53c2\u8003<br \/>\n  &#8211; \u652f\u6301\u6240\u6709 H.264 Profile\uff08Baseline\u3001Main\u3001High\u7b49\uff09<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u8f83\u6162\uff0c\u4f46\u538b\u7f29\u7387\u6700\u9ad8\uff08\u76f8\u540c\u8d28\u91cf\u4e0b\u6587\u4ef6\u6700\u5c0f\uff09<br \/>\n  &#8211; \u652f\u6301\u591a\u7ebf\u7a0b\u5e76\u884c\u7f16\u7801\uff0c\u53ef\u5145\u5206\u5229\u7528\u591a\u6838CPU<br \/>\n  &#8211; \u53c2\u6570\u4e30\u5bcc\uff0c\u53ef\u7cbe\u7ec6\u63a7\u5236\u7f16\u7801\u8fc7\u7a0b<br \/>\n&#8211; <strong>\u4f18\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u8d28\u91cf\u4e0e\u538b\u7f29\u7387\u7684\u6700\u4f73\u5e73\u8861<br \/>\n  &#8211; \u5e7f\u6cdb\u652f\u6301\uff0cFFmpeg \u9ed8\u8ba4\u96c6\u6210<br \/>\n  &#8211; \u793e\u533a\u6d3b\u8dc3\uff0c\u6301\u7eed\u4f18\u5316<br \/>\n&#8211; <strong>\u52a3\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162\uff08\u76f8\u6bd4\u786c\u4ef6\u7f16\u7801\u5668\uff09<br \/>\n  &#8211; CPU \u5360\u7528\u8f83\u9ad8<br \/>\n&#8211; <strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n  &#8211; \u79bb\u7ebf\u8f6c\u7801\uff08\u4f18\u5148\u538b\u7f29\u7387\u548c\u8d28\u91cf\uff09<br \/>\n  &#8211; \u9ad8\u8d28\u91cf\u89c6\u9891\u5236\u4f5c<br \/>\n  &#8211; \u89c6\u9891\u5b58\u6863\u548c\u5206\u53d1<br \/>\n&#8211; <strong>FFmpeg\u4f7f\u7528<\/strong>\uff1a<code>-c:v libx264<\/code><\/p>\n<p><strong>2. OpenH264<\/strong><br \/>\n&#8211; <strong>\u7c7b\u578b<\/strong>\uff1a\u5f00\u6e90\u8f6f\u4ef6\u7f16\u7801\u5668\uff08Cisco \u5f00\u6e90\uff09<br \/>\n&#8211; <strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u8f83\u5feb\uff0c\u9002\u5408\u5b9e\u65f6\u7f16\u7801<br \/>\n  &#8211; \u4e3b\u8981\u652f\u6301 Baseline Profile\uff0c\u517c\u5bb9\u6027\u597d<br \/>\n  &#8211; \u4ee3\u7801\u7b80\u6d01\uff0c\u6613\u4e8e\u96c6\u6210<br \/>\n  &#8211; \u9488\u5bf9\u5b9e\u65f6\u901a\u4fe1\u573a\u666f\u4f18\u5316<br \/>\n&#8211; <strong>\u4f18\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u5feb\uff0c\u5ef6\u8fdf\u4f4e<br \/>\n  &#8211; \u9002\u5408\u5b9e\u65f6\u89c6\u9891\u901a\u8bdd\u548c\u76f4\u64ad<br \/>\n  &#8211; \u5f00\u6e90\u514d\u8d39\uff0c\u65e0\u4e13\u5229\u98ce\u9669<br \/>\n&#8211; <strong>\u52a3\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u538b\u7f29\u6548\u7387\u4f4e\u4e8e x264<br \/>\n  &#8211; \u4e3b\u8981\u652f\u6301 Baseline Profile\uff0c\u529f\u80fd\u6709\u9650<br \/>\n  &#8211; \u53c2\u6570\u63a7\u5236\u9009\u9879\u8f83\u5c11<br \/>\n&#8211; <strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n  &#8211; WebRTC \u89c6\u9891\u901a\u8bdd<br \/>\n  &#8211; \u5b9e\u65f6\u76f4\u64ad\uff08\u4f4e\u5ef6\u8fdf\u8981\u6c42\uff09<br \/>\n  &#8211; \u79fb\u52a8\u7aef\u5e94\u7528<br \/>\n&#8211; <strong>FFmpeg\u4f7f\u7528<\/strong>\uff1a<code>-c:v libopenh264<\/code><\/p>\n<p><strong>\u7f16\u7801\u5668\u5bf9\u6bd4\u603b\u7ed3<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>\u7f16\u7801\u5668<\/th>\n<th>\u7c7b\u578b<\/th>\n<th>\u7f16\u7801\u901f\u5ea6<\/th>\n<th>\u538b\u7f29\u6548\u7387<\/th>\n<th>\u8d28\u91cf<\/th>\n<th>CPU\u5360\u7528<\/th>\n<th>\u9002\u7528\u573a\u666f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>x264<\/strong><\/td>\n<td>\u8f6f\u4ef6<\/td>\n<td>\u6162<\/td>\n<td>\u6700\u9ad8<\/td>\n<td>\u4f18\u79c0<\/td>\n<td>\u9ad8<\/td>\n<td>\u79bb\u7ebf\u8f6c\u7801\u3001\u9ad8\u8d28\u91cf\u5236\u4f5c<\/td>\n<\/tr>\n<tr>\n<td><strong>OpenH264<\/strong><\/td>\n<td>\u8f6f\u4ef6<\/td>\n<td>\u5feb<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u826f\u597d<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u5b9e\u65f6\u901a\u8bdd\u3001WebRTC<\/td>\n<\/tr>\n<tr>\n<td><strong>MainConcept<\/strong><\/td>\n<td>\u5546\u4e1a\u8f6f\u4ef6<\/td>\n<td>\u8f83\u5feb<\/td>\n<td>\u9ad8<\/td>\n<td>\u4f18\u79c0<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u5546\u4e1a\u5e94\u7528\u3001\u4f01\u4e1a\u7ea7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u9009\u62e9\u5efa\u8bae<\/strong><\/p>\n<ul>\n<li><strong>\u79bb\u7ebf\u8f6c\u7801\uff08\u4f18\u5148\u8d28\u91cf\uff09<\/strong>\uff1a\u63a8\u8350 x264\uff0c\u4f7f\u7528 <code>slow<\/code> \u6216 <code>veryslow<\/code> preset<\/li>\n<li><strong>\u5b9e\u65f6\u76f4\u64ad\/\u901a\u8bdd<\/strong>\uff1a<\/li>\n<li>\u6709\u786c\u4ef6\u52a0\u901f\uff1a\u4f18\u5148\u4f7f\u7528 NVENC\/QSV\/VCE<\/li>\n<li>\u65e0\u786c\u4ef6\u52a0\u901f\uff1a\u4f7f\u7528 OpenH264 \u6216 x264\uff08veryfast preset\uff09<\/li>\n<li><strong>\u6279\u91cf\u8f6c\u7801<\/strong>\uff1a\u6709\u786c\u4ef6\u52a0\u901f\u65f6\u4f18\u5148\u4f7f\u7528\u786c\u4ef6\u7f16\u7801\u5668\uff0c\u63d0\u5347\u5904\u7406\u901f\u5ea6<\/li>\n<li><strong>WebRTC\/\u89c6\u9891\u4f1a\u8bae<\/strong>\uff1a\u63a8\u8350 OpenH264\uff0c\u4f4e\u5ef6\u8fdf\u3001\u517c\u5bb9\u6027\u597d<\/li>\n<li><strong>\u6e38\u620f\u76f4\u64ad<\/strong>\uff1a\u63a8\u8350 NVENC\uff0c\u901f\u5ea6\u5feb\u3001\u8d28\u91cf\u597d\u3001\u4e0d\u5360\u7528 CPU<\/li>\n<li><strong>\u79fb\u52a8\u7aef\u5e94\u7528<\/strong>\uff1a\u63a8\u8350 OpenH264\uff0c\u7f16\u7801\u901f\u5ea6\u5feb\u3001\u529f\u8017\u4f4e<\/li>\n<\/ul>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"%E7%A1%AC%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8\"><\/span>\u786c\u4ef6\u7f16\u7801\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>\u5e73\u53f0\/API<\/th>\n<th>H.264\u786c\u7f16\u786c\u89e3\u652f\u6301<\/th>\n<th>Profile\u652f\u6301<\/th>\n<th>\u5f00\u53d1\u8005API<\/th>\n<th>FFmpeg\u7f16\u7801\u5668<\/th>\n<th>\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>iOS\/macOS (VideoToolbox)<\/strong><\/td>\n<td>\u7cfb\u7edf\u652f\u6301\uff1aiOS 4.0+<br \/>API\u5f00\u653e\uff1aiOS 8.0+<br \/>\u7cfb\u7edf\u652f\u6301\uff1amacOS 10.6+<br \/>API\u5f00\u653e\uff1amacOS 10.9+<\/td>\n<td>Baseline\/Main\/High<br \/>YUV4:2:0<\/td>\n<td>\u2705 \u5f00\u653e<br \/>VideoToolbox\u6846\u67b6<br \/>(iOS 8.0+\/macOS 10.9+)<\/td>\n<td><code>h264_videotoolbox<\/code><\/td>\n<td>Apple\u5b98\u65b9API\uff0cC\/C++\/Swift\/Objective-C\u53ef\u7528<br \/>\u6ce8\u610f\uff1a\u7cfb\u7edf\u652f\u6301\u65e9\u4e8eAPI\u5f00\u653e\u65f6\u95f4<br \/>\u4f4eCPU\u5360\u7528\uff0c\u9ad8\u8d28\u91cf\u7f16\u7801<\/td>\n<\/tr>\n<tr>\n<td><strong>Android (MediaCodec)<\/strong><\/td>\n<td>Android 4.1+<br \/>(API 16+, 2012\u5e74)<br \/>\u786c\u4ef6\u652f\u6301\u9700\u82af\u7247\u7ec4\u652f\u6301<\/td>\n<td>Baseline\/Main\/High<br \/>YUV4:2:0<br \/>\uff08\u5177\u4f53\u652f\u6301\u56e0\u8bbe\u5907\u800c\u5f02\uff09<\/td>\n<td>\u2705 \u5f00\u653e<br \/>MediaCodec API<\/td>\n<td><code>h264_mediacodec<\/code><\/td>\n<td>Google\u5b98\u65b9API\uff0cJava\/Kotlin\u53ef\u7528<br \/>\u9700\u8fd0\u884c\u65f6\u68c0\u6d4b\u786c\u4ef6\u80fd\u529b<br \/>\u5f02\u6b65\u5904\u7406\uff0c\u4f4eCPU\u5360\u7528<\/td>\n<\/tr>\n<tr>\n<td><strong>Windows (Media Foundation)<\/strong><\/td>\n<td>Windows 7+<br \/>\u9700\u8981\u652f\u6301H.264\u7684GPU<\/td>\n<td>Baseline\/Main\/High<br \/>YUV4:2:0<\/td>\n<td>\u2705 \u5f00\u653e<br \/>Media Foundation API<br \/>IMFTransform\u63a5\u53e3<\/td>\n<td><code>h264_mf<\/code><\/td>\n<td>Microsoft\u5b98\u65b9API\uff0cC++\/C#\u53ef\u7528<br \/>\u652f\u6301DXVA2\/D3D11 Video\u52a0\u901f<br \/>\u9700\u8981GPU\u786c\u4ef6\u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td><strong>NVIDIA NVENC<\/strong><\/td>\n<td>Kepler\u67b6\u6784+<br \/>(GTX 600\u7cfb\u5217, 2012\u5e74)<br \/>GTX 650\u53ca\u4ee5\u4e0a\u578b\u53f7<\/td>\n<td>Baseline\/Main\/High<br \/>Maxwell+\u652f\u6301High444<br \/>Maxwell+\u652f\u6301Lossless<br \/>YUV4:2:0\/4:4:4<\/td>\n<td>\u2705 \u5f00\u653e<br \/>NVENC SDK<br \/>Video Codec SDK<\/td>\n<td><code>h264_nvenc<\/code><\/td>\n<td>NVIDIA\u63d0\u4f9bSDK\uff0cC\/C++\u53ef\u7528<br \/>\u7f16\u7801\u5ef6\u8fdf\u4f4e\uff0c\u6027\u80fd\u5f3a\u52b2<br \/>Pascal+\u652f\u63014K\/60fps<br \/>\u5e76\u53d1\u7f16\u7801\u4f1a\u8bdd\u6570\u6709\u9650\u5236<\/td>\n<\/tr>\n<tr>\n<td><strong>Intel Quick Sync Video (QSV)<\/strong><\/td>\n<td>Sandy Bridge+<br \/>(2\u4ee3\u9177\u777f, 2011\u5e74)<br \/>Core i3\/i5\/i7 2xxx+<br \/>\u90e8\u5206Pentium\/Celeron\/Atom<\/td>\n<td>Baseline\/Main\/High<br \/>YUV4:2:0<br \/>High444\/Lossless\u652f\u6301\u6709\u9650<\/td>\n<td>\u2705 \u5f00\u653e<br \/>Intel Media SDK<br \/>Quick Sync Video API<br \/>oneVPL (\u65b0\u7248)<\/td>\n<td><code>h264_qsv<\/code><\/td>\n<td>Intel\u63d0\u4f9bSDK\uff0cC\/C++\u53ef\u7528<br \/>\u9700Intel\u96c6\u6210\u663e\u5361<br \/>1080p\u5b9e\u65f6\u7f16\u7801\u6027\u80fd\u4f18\u79c0<br \/>4K\u652f\u6301\u56e0\u578b\u53f7\u800c\u5f02<\/td>\n<\/tr>\n<tr>\n<td><strong>AMD VCE\/VCN<\/strong><\/td>\n<td>HD 7700\u7cfb\u5217+<br \/>(GCN\u67b6\u6784, 2012\u5e74)<br \/>VCN (RDNA\u67b6\u6784)\u6027\u80fd\u66f4\u597d<\/td>\n<td>Baseline\/Main\/High<br \/>YUV4:2:0<br \/>High444\/Lossless\u652f\u6301\u5f31<\/td>\n<td>\u2705 \u5f00\u653e<br \/>AMD Media SDK<br \/>AMF (Advanced Media Framework)<\/td>\n<td><code>h264_amf<\/code><\/td>\n<td>AMD\u63d0\u4f9bSDK\uff0cC\/C++\u53ef\u7528<br \/>\u9700AMD GPU\u6216APU<br \/>\u652f\u63011080p\u548c\u90e8\u52064K<br \/>\u5ef6\u8fdf\u8f83NVENC\u7565\u9ad8<\/td>\n<\/tr>\n<tr>\n<td><strong>Linux (VA-API)<\/strong><\/td>\n<td>\u53d6\u51b3\u4e8eGPU\u548c\u9a71\u52a8<br \/>Intel QSV: \u652f\u6301\u826f\u597d<br \/>AMD VCE: \u90e8\u5206\u652f\u6301<br \/>NVIDIA: \u9700NVIDIA\u9a71\u52a8<\/td>\n<td>\u53d6\u51b3\u4e8e\u5177\u4f53GPU<br \/>\u901a\u5e38\u652f\u6301Baseline\/Main\/High<\/td>\n<td>\u2705 \u5f00\u653e<br \/>VA-API (Video Acceleration API)<\/td>\n<td><code>h264_vaapi<\/code><\/td>\n<td>\u5f00\u6e90API\uff0cC\/C++\u53ef\u7528<br \/>Intel GPU\u652f\u6301\u6700\u597d<br \/>AMD\/NVIDIA\u652f\u6301\u56e0\u9a71\u52a8\u800c\u5f02<br \/>\u9700\u8981libva\u5e93<\/td>\n<\/tr>\n<tr>\n<td><strong>Linux (VDPAU)<\/strong><\/td>\n<td>\u53d6\u51b3\u4e8eGPU\u548c\u9a71\u52a8<br \/>\u4e3b\u8981\u7528\u4e8eNVIDIA GPU<\/td>\n<td>\u53d6\u51b3\u4e8e\u5177\u4f53GPU<\/td>\n<td>\u2705 \u5f00\u653e<br \/>VDPAU (Video Decode and Presentation API)<\/td>\n<td><code>h264_vdpau<\/code><\/td>\n<td>\u4e3b\u8981\u7528\u4e8eNVIDIA GPU\u89e3\u7801<br \/>\u7f16\u7801\u652f\u6301\u6709\u9650<br \/>\u9700\u8981NVIDIA\u9a71\u52a8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u786c\u7f16vs\u8f6f\u7f16\u5bf9\u6bd4<\/strong><br \/>\n&#8211; <strong>\u6027\u80fd<\/strong>\uff1a\u786c\u7f16\u901f\u5ea6\u8fdc\u5feb\u4e8e\u8f6f\u7f16\uff0cCPU\u5360\u7528\u4f4e<br \/>\n&#8211; <strong>\u8d28\u91cf<\/strong>\uff1a\u786c\u7f16\u8d28\u91cf\u901a\u5e38\u7565\u4f4e\u4e8e\u8f6f\u7f16\uff0c\u4f46\u5dee\u8ddd\u4e0d\u5927\uff08\u73b0\u4ee3\u786c\u4ef6\u7f16\u7801\u5668\u8d28\u91cf\u5df2\u63a5\u8fd1\u8f6f\u4ef6\u7f16\u7801\uff09<br \/>\n&#8211; <strong>\u7075\u6d3b\u6027<\/strong>\uff1a\u8f6f\u7f16\u53c2\u6570\u8c03\u6574\u66f4\u7075\u6d3b\uff0c\u786c\u7f16\u53c2\u6570\u53d7\u9650<br \/>\n&#8211; <strong>\u529f\u8017<\/strong>\uff1a\u786c\u7f16\u529f\u8017\u66f4\u4f4e\uff0c\u9002\u5408\u79fb\u52a8\u8bbe\u5907<br \/>\n&#8211; <strong>\u5ef6\u8fdf<\/strong>\uff1a\u786c\u7f16\u5ef6\u8fdf\u901a\u5e38\u66f4\u4f4e\uff0c\u9002\u5408\u5b9e\u65f6\u573a\u666f<\/p>\n<p><strong>\u786c\u4ef6\u7f16\u7801\u5668\u91cd\u8981\u8bf4\u660e<\/strong><br \/>\n&#8211; <strong>Profile\u652f\u6301\u5dee\u5f02<\/strong>\uff1a\u4e0d\u540c\u786c\u4ef6\u5bf9Profile\u7684\u652f\u6301\u4e0d\u540c\uff0cHigh444\u548cLossless\u901a\u5e38\u9700\u8981\u8f83\u65b0\u7684\u786c\u4ef6\uff08\u5982NVENC Maxwell+\u3001QSV\u90e8\u5206\u578b\u53f7\uff09<br \/>\n&#8211; <strong>\u5e76\u53d1\u9650\u5236<\/strong>\uff1a\u90e8\u5206\u786c\u4ef6\u7f16\u7801\u5668\uff08\u5982NVENC\uff09\u5bf9\u5e76\u53d1\u7f16\u7801\u4f1a\u8bdd\u6570\u6709\u9650\u5236\uff0c\u6d88\u8d39\u7ea7GPU\u901a\u5e38\u9650\u5236\u4e3a2-3\u4e2a\u4f1a\u8bdd<br \/>\n&#8211; <strong>\u9a71\u52a8\u8981\u6c42<\/strong>\uff1a\u786c\u4ef6\u7f16\u7801\u9700\u8981\u6b63\u786e\u7684\u9a71\u52a8\u548cSDK\u7248\u672c\u652f\u6301\uff0c\u5efa\u8bae\u4f7f\u7528\u6700\u65b0\u9a71\u52a8<br \/>\n&#8211; <strong>\u8d28\u91cf\u6743\u8861<\/strong>\uff1a\u5728\u4f4e\u7801\u7387\u573a\u666f\u4e0b\uff0c\u786c\u4ef6\u7f16\u7801\u8d28\u91cf\u53ef\u80fd\u660e\u663e\u4f4e\u4e8e\u8f6f\u4ef6\u7f16\u7801\uff08\u5982x264\uff09\uff1b\u9ad8\u7801\u7387\u573a\u666f\u4e0b\u5dee\u8ddd\u8f83\u5c0f<br \/>\n&#8211; <strong>\u5e73\u53f0\u5dee\u5f02<\/strong>\uff1a\u540c\u4e00\u786c\u4ef6\u5728\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684\u652f\u6301\u60c5\u51b5\u53ef\u80fd\u4e0d\u540c\uff0cLinux\u5e73\u53f0\u9700\u8981\u989d\u5916\u914d\u7f6e<br \/>\n&#8211; <strong>\u68c0\u6d4b\u65b9\u6cd5<\/strong>\uff1a\u4f7f\u7528FFmpeg\u68c0\u6d4b\u786c\u4ef6\u7f16\u7801\u5668\uff1a<code>ffmpeg -encoders | grep h264<\/code><\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"H265HEVC%E8%AF%A6%E8%A7%A3\"><\/span>H.265\/HEVC\u8be6\u89e3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E5%8E%9F%E7%90%86%E4%B8%8E%E7%89%B9%E6%80%A7-2\"><\/span>\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>\u7f16\u7801\u539f\u7406<\/strong>\uff1a\u5728H.264\u57fa\u7840\u4e0a\u6539\u8fdb\uff0c\u4f7f\u7528\u66f4\u5927\u7684\u7f16\u7801\u5757\uff08\u6700\u592764&#215;64\uff09<\/li>\n<li><strong>Profile<\/strong>\uff1aMain\u3001Main 10\uff0810bit\uff09\u3001Main Still Picture\u7b49<\/li>\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u76f8\u6bd4H.264\u538b\u7f29\u7387\u63d0\u5347\u7ea650%\uff0c\u4f46\u8ba1\u7b97\u590d\u6742\u5ea6\u66f4\u9ad8<\/li>\n<li><strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a4K\u89c6\u9891\u3001\u8d85\u9ad8\u6e05\u76f4\u64ad\u3001\u89c6\u9891\u5b58\u50a8<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"H265%E7%89%B9%E6%9C%89%E7%89%B9%E6%80%A7\"><\/span>H.265\u7279\u6709\u7279\u6027<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H.265\u76f8\u6bd4H.264\u7684\u4e3b\u8981\u6539\u8fdb\u5305\u62ec\uff1a<br \/>\n&#8211; <strong>\u66f4\u5927\u7f16\u7801\u5757<\/strong>\uff1a\u6700\u5927\u652f\u630164&#215;64\uff08H.264\u4e3a16&#215;16\uff09\uff0c\u63d0\u9ad8\u538b\u7f29\u6548\u7387<br \/>\n&#8211; <strong>\u66f4\u591a\u53d8\u6362\u7c7b\u578b<\/strong>\uff1a\u652f\u6301DCT\u548cDST\u53d8\u6362<br \/>\n&#8211; <strong>\u91c7\u6837\u81ea\u9002\u5e94\u504f\u79fb\uff08SAO\uff09<\/strong>\uff1aH.265\u72ec\u6709\uff0c\u63d0\u9ad8\u753b\u8d28<br \/>\n&#8211; <strong>10bit\u7f16\u7801\u652f\u6301<\/strong>\uff1aMain 10 Profile\u652f\u630110bit\u8272\u6df1<br \/>\n&#8211; <strong>\u63a8\u8350\u7801\u7387<\/strong>\uff1a\u76f8\u540c\u8d28\u91cf\u4e0b\u7801\u7387\u7ea6\u4e3aH.264\u768450-60%<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%BD%AF%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8-2\"><\/span>\u8f6f\u4ef6\u7f16\u7801\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>1. x265\uff08libx265\uff09<\/strong><br \/>\n&#8211; <strong>\u7c7b\u578b<\/strong>\uff1a\u5f00\u6e90\u8f6f\u4ef6\u7f16\u7801\u5668<br \/>\n&#8211; <strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n  &#8211; H.265\u7f16\u7801\u5668\u7684\u6807\u51c6\u53c2\u8003\u5b9e\u73b0\uff0c\u538b\u7f29\u6548\u7387\u9ad8\uff0c\u8d28\u91cf\u4f18\u79c0<br \/>\n  &#8211; \u652f\u6301\u6240\u6709 H.265 Profile\uff08Main\u3001Main 10\u7b49\uff09<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u8f83\u6162\uff0c\u4f46\u538b\u7f29\u7387\u6700\u9ad8\uff08\u76f8\u540c\u8d28\u91cf\u4e0b\u6587\u4ef6\u6700\u5c0f\uff09<br \/>\n  &#8211; \u652f\u6301\u591a\u7ebf\u7a0b\u5e76\u884c\u7f16\u7801\uff0c\u53ef\u5145\u5206\u5229\u7528\u591a\u6838CPU<br \/>\n  &#8211; \u53c2\u6570\u4e30\u5bcc\uff0c\u53ef\u7cbe\u7ec6\u63a7\u5236\u7f16\u7801\u8fc7\u7a0b<br \/>\n&#8211; <strong>\u4f18\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u8d28\u91cf\u4e0e\u538b\u7f29\u7387\u7684\u6700\u4f73\u5e73\u8861<br \/>\n  &#8211; \u5e7f\u6cdb\u652f\u6301\uff0cFFmpeg \u9ed8\u8ba4\u96c6\u6210<br \/>\n  &#8211; \u793e\u533a\u6d3b\u8dc3\uff0c\u6301\u7eed\u4f18\u5316<br \/>\n&#8211; <strong>\u52a3\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162\uff08\u76f8\u6bd4\u786c\u4ef6\u7f16\u7801\u5668\uff09<br \/>\n  &#8211; CPU \u5360\u7528\u8f83\u9ad8<br \/>\n  &#8211; \u7f16\u7801\u590d\u6742\u5ea6\u7ea6\u4e3a x264 \u7684 2-3 \u500d<br \/>\n&#8211; <strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n  &#8211; \u79bb\u7ebf\u8f6c\u7801\uff08\u4f18\u5148\u538b\u7f29\u7387\u548c\u8d28\u91cf\uff09<br \/>\n  &#8211; \u9ad8\u8d28\u91cf\u89c6\u9891\u5236\u4f5c<br \/>\n  &#8211; \u89c6\u9891\u5b58\u6863\u548c\u5206\u53d1<br \/>\n  &#8211; 4K\u89c6\u9891\u7f16\u7801<br \/>\n&#8211; <strong>FFmpeg\u4f7f\u7528<\/strong>\uff1a<code>-c:v libx265<\/code><\/p>\n<p><strong>3. MainConcept H.265 Encoder<\/strong><br \/>\n&#8211; <strong>\u7c7b\u578b<\/strong>\uff1a\u5546\u4e1a\u8f6f\u4ef6\u7f16\u7801\u5668<br \/>\n&#8211; <strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n  &#8211; \u5546\u4e1a\u7ea7\u7f16\u7801\u5668\uff0c\u8d28\u91cf\u4f18\u79c0<br \/>\n  &#8211; \u7f16\u7801\u901f\u5ea6\u8f83\u5feb\uff0c\u538b\u7f29\u6548\u7387\u9ad8<br \/>\n  &#8211; \u652f\u6301\u6240\u6709 H.265 Profile \u548c\u9ad8\u7ea7\u7279\u6027<br \/>\n  &#8211; \u63d0\u4f9b SDK \u548c\u96c6\u6210\u65b9\u6848<br \/>\n&#8211; <strong>\u4f18\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u8d28\u91cf\u4e0e\u901f\u5ea6\u7684\u826f\u597d\u5e73\u8861<br \/>\n  &#8211; \u5546\u4e1a\u652f\u6301\u548c\u6280\u672f\u670d\u52a1<br \/>\n  &#8211; \u9002\u5408\u4f01\u4e1a\u7ea7\u5e94\u7528<br \/>\n&#8211; <strong>\u52a3\u52bf<\/strong>\uff1a<br \/>\n  &#8211; \u9700\u8981\u5546\u4e1a\u6388\u6743\uff0c\u6210\u672c\u8f83\u9ad8<br \/>\n  &#8211; \u5f00\u6e90\u9879\u76ee\u8f83\u5c11\u4f7f\u7528<br \/>\n&#8211; <strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n  &#8211; \u5546\u4e1a\u89c6\u9891\u5904\u7406\u8f6f\u4ef6<br \/>\n  &#8211; \u4f01\u4e1a\u7ea7\u8f6c\u7801\u670d\u52a1<br \/>\n  &#8211; \u4e13\u4e1a\u89c6\u9891\u5236\u4f5c\u5de5\u5177<\/p>\n<p><strong>\u7f16\u7801\u5668\u5bf9\u6bd4\u603b\u7ed3<\/strong><br \/>\n| \u7f16\u7801\u5668 | \u7c7b\u578b | \u7f16\u7801\u901f\u5ea6 | \u538b\u7f29\u6548\u7387 | \u8d28\u91cf | CPU\u5360\u7528 | \u9002\u7528\u573a\u666f |<br \/>\n|&#8212;&#8212;&#8211;|&#8212;&#8212;|&#8212;&#8212;&#8212;|&#8212;&#8212;&#8212;|&#8212;&#8212;|&#8212;&#8212;&#8212;|&#8212;&#8212;&#8212;|<br \/>\n| <strong>x265<\/strong> | \u8f6f\u4ef6 | \u6162 | \u6700\u9ad8 | \u4f18\u79c0 | \u9ad8 | \u79bb\u7ebf\u8f6c\u7801\u3001\u9ad8\u8d28\u91cf\u5236\u4f5c\u30014K\u89c6\u9891 |<br \/>\n| <strong>MainConcept<\/strong> | \u5546\u4e1a\u8f6f\u4ef6 | \u8f83\u5feb | \u9ad8 | \u4f18\u79c0 | \u4e2d\u7b49 | \u5546\u4e1a\u5e94\u7528\u3001\u4f01\u4e1a\u7ea7 |<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"%E7%A1%AC%E4%BB%B6%E7%BC%96%E7%A0%81%E5%99%A8-2\"><\/span>\u786c\u4ef6\u7f16\u7801\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>\u5e73\u53f0\/API<\/th>\n<th>H.265\u786c\u7f16\u786c\u89e3<\/th>\n<th>\u5f00\u53d1\u8005API<\/th>\n<th>\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>iOS\/macOS (VideoToolbox)<\/strong><\/td>\n<td>iOS 11.0+ (\u9700A9\u82af\u7247+)<br \/>macOS 11.0+ (Big Sur)<\/td>\n<td>\u2705 \u5f00\u653e<br \/>VideoToolbox\u6846\u67b6<\/td>\n<td>Apple\u5b98\u65b9API\uff0cC\/C++\/Swift\/Objective-C\u53ef\u7528<\/td>\n<\/tr>\n<tr>\n<td><strong>Android (MediaCodec)<\/strong><\/td>\n<td>Android 5.0+ (API 21+, 2014\u5e74)<br \/>\u786c\u4ef6\u652f\u6301\u9700\u82af\u7247\u7ec4\u652f\u6301<\/td>\n<td>\u2705 \u5f00\u653e<br \/>MediaCodec API<\/td>\n<td>Google\u5b98\u65b9API\uff0cJava\/Kotlin\u53ef\u7528\uff0c\u9700\u8fd0\u884c\u65f6\u68c0\u6d4b\u786c\u4ef6\u80fd\u529b<\/td>\n<\/tr>\n<tr>\n<td><strong>Windows (Media Foundation \/ DXVA)<\/strong><\/td>\n<td>Windows 10+<br \/>(\u9700\u652f\u6301HEVC\u7684GPU)<\/td>\n<td>\u2705 \u5f00\u653e<br \/>Media Foundation API<br \/>DXVA2\/D3D11 Video<\/td>\n<td>Microsoft\u5b98\u65b9API\uff0cC++\/C#\u53ef\u7528<\/td>\n<\/tr>\n<tr>\n<td><strong>NVIDIA NVENC<\/strong><\/td>\n<td>Maxwell\u67b6\u6784+<br \/>(GTX 900\u7cfb\u5217, 2014\u5e74)<br \/>GTX 950+<\/td>\n<td>\u2705 \u5f00\u653e<br \/>NVENC SDK<\/td>\n<td>NVIDIA\u63d0\u4f9bSDK\uff0cC\/C++\u53ef\u7528\uff0c\u9700NVIDIA GPU<\/td>\n<\/tr>\n<tr>\n<td><strong>Intel Quick Sync Video<\/strong><\/td>\n<td>Skylake+<br \/>(6\u4ee3\u9177\u777f, 2015\u5e74)<br \/>Core i3\/i5\/i7 6xxx+<br \/>\u90e8\u5206Broadwell\u4e5f\u652f\u6301<\/td>\n<td>\u2705 \u5f00\u653e<br \/>Intel Media SDK<br \/>Quick Sync Video API<\/td>\n<td>Intel\u63d0\u4f9bSDK\uff0cC\/C++\u53ef\u7528\uff0c\u9700Intel\u96c6\u6210\u663e\u5361<br \/>\u6ce8\u610f\uff1aH.265\u4ece6\u4ee3\u9177\u777f\u5f00\u59cb\u6b63\u5f0f\u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td><strong>Linux (VA-API\/VDPAU)<\/strong><\/td>\n<td>\u53d6\u51b3\u4e8eGPU\u548c\u9a71\u52a8<br \/>\u90e8\u5206\u65b0\u6b3eGPU\u652f\u6301<\/td>\n<td>\u2705 \u5f00\u653e<br \/>VA-API\/VDPAU<\/td>\n<td>\u5f00\u6e90API\uff0cC\/C++\u53ef\u7528\uff0c\u652f\u6301\u60c5\u51b5\u56e0\u786c\u4ef6\u548c\u9a71\u52a8\u800c\u5f02<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u786c\u7f16vs\u8f6f\u7f16\u5bf9\u6bd4<\/strong><br \/>\n&#8211; <strong>\u6027\u80fd<\/strong>\uff1a\u786c\u7f16\u901f\u5ea6\u8fdc\u5feb\u4e8e\u8f6f\u7f16\uff0cCPU\u5360\u7528\u4f4e<br \/>\n&#8211; <strong>\u8d28\u91cf<\/strong>\uff1a\u786c\u7f16\u8d28\u91cf\u901a\u5e38\u7565\u4f4e\u4e8e\u8f6f\u7f16\uff0c\u4f46\u5dee\u8ddd\u4e0d\u5927<br \/>\n&#8211; <strong>\u7075\u6d3b\u6027<\/strong>\uff1a\u8f6f\u7f16\u53c2\u6570\u8c03\u6574\u66f4\u7075\u6d3b\uff0c\u786c\u7f16\u53c2\u6570\u53d7\u9650<br \/>\n&#8211; <strong>\u529f\u8017<\/strong>\uff1a\u786c\u7f16\u529f\u8017\u66f4\u4f4e\uff0c\u9002\u5408\u79fb\u52a8\u8bbe\u5907<\/p>\n<p><strong>\u9002\u7528\u573a\u666f<\/strong><br \/>\n&#8211; <strong>\u786c\u7f16\u9002\u7528<\/strong>\uff1a\u5b9e\u65f6\u76f4\u64ad\u3001\u89c6\u9891\u4f1a\u8bae\u3001\u79fb\u52a8\u8bbe\u5907\u5f55\u5236<br \/>\n&#8211; <strong>\u8f6f\u7f16\u9002\u7528<\/strong>\uff1a\u79bb\u7ebf\u8f6c\u7801\u3001\u9ad8\u8d28\u91cf\u7f16\u7801\u3001\u53c2\u6570\u7cbe\u7ec6\u8c03\u6574<\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>Video Encoding \u6982\u8ff0 \u89c6\u9891\u7f16\u7801\u5c06\u539f\u59cb\u89c6\u9891\u5e27\u6570\u636e\u538b\u7f29\u4e3a\u7279\u5b9a\u683c\u5f0f\uff0c\u4ee5\u51cf\u5c11\u6570\u636e\u91cf\u548c\u4f20\u8f93\u5e26\u5bbd\u3002 \u7f16\u7801\u6807\u51c6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"blocksy_meta":[],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":""},"post_excerpt_stackable":"<p>\u76ee\u5f55 Toggle Video Encoding\u6982\u8ff0\u7f16\u7801\u6807\u51c6\u6982\u8ff0\u7f16\u7801\u65b9\u5f0f\u5bf9\u6bd4SVC\u53ef\u4f38\u7f29\u7f16\u7801\u7f16\u7801\u6838\u5fc3\u6982\u5ff5\u5173\u952e\u53c2\u6570\u53c2\u6570\u7ec4\u5408\u5efa\u8bae\u63a8\u8350\u7801\u7387\u8bbe\u7f6eH.264\/AVC\u8be6\u89e3\u7f16\u7801\u539f\u7406\u4e0e\u7279\u6027\u8f6f\u4ef6\u7f16\u7801\u5668\u786c\u4ef6\u7f16\u7801\u5668H.26&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/finance.ixriver.com\/?cat=28\" rel=\"category\">\u89c6\u9891<\/a>","author_info":{"name":"admin","url":"https:\/\/finance.ixriver.com\/?author=1"},"comments_num":"0 comments","_links":{"self":[{"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/790"}],"collection":[{"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=790"}],"version-history":[{"count":0,"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/790\/revisions"}],"wp:attachment":[{"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/finance.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}