{"id":789,"date":"2026-01-25T09:51:05","date_gmt":"2026-01-25T01:51:05","guid":{"rendered":"https:\/\/ixriver.com\/?p=789"},"modified":"2026-01-25T09:51:05","modified_gmt":"2026-01-25T01:51:05","slug":"%e8%a7%86%e9%a2%91%e8%a7%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/www.v.ixriver.com\/?p=789","title":{"rendered":"\u89c6\u9891\u89e3\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:\/\/www.v.ixriver.com\/?p=789\/#Video_Decoding\" title=\"Video Decoding\">Video Decoding<\/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:\/\/www.v.ixriver.com\/?p=789\/#%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:\/\/www.v.ixriver.com\/?p=789\/#%E8%A7%A3%E7%A0%81%E5%99%A8%E7%B1%BB%E5%9E%8B\" title=\"\u89e3\u7801\u5668\u7c7b\u578b\">\u89e3\u7801\u5668\u7c7b\u578b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E8%BD%AF%E4%BB%B6%E8%A7%A3%E7%A0%81%E5%99%A8\" title=\"\u8f6f\u4ef6\u89e3\u7801\u5668\">\u8f6f\u4ef6\u89e3\u7801\u5668<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#FFmpeglibavcodec\" title=\"FFmpeg\/libavcodec\">FFmpeg\/libavcodec<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#libvpx\" title=\"libvpx\">libvpx<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E7%A1%AC%E4%BB%B6%E8%A7%A3%E7%A0%81%E5%99%A8\" title=\"\u786c\u4ef6\u89e3\u7801\u5668\">\u786c\u4ef6\u89e3\u7801\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E8%A7%A3%E7%A0%81%E5%99%A8%E5%AF%B9%E6%AF%94\" title=\"\u89e3\u7801\u5668\u5bf9\u6bd4\">\u89e3\u7801\u5668\u5bf9\u6bd4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#FFmpeg_%E7%BB%84%E4%BB%B6%E5%85%B3%E7%B3%BB\" title=\"FFmpeg \u7ec4\u4ef6\u5173\u7cfb\">FFmpeg \u7ec4\u4ef6\u5173\u7cfb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E4%BD%BF%E7%94%A8%E5%BB%BA%E8%AE%AE\" title=\"\u4f7f\u7528\u5efa\u8bae\">\u4f7f\u7528\u5efa\u8bae<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E8%A7%A3%E7%A0%81%E6%B5%81%E7%A8%8B\" title=\"\u89e3\u7801\u6d41\u7a0b\">\u89e3\u7801\u6d41\u7a0b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E7%A0%81%E6%B5%81%E8%A7%A3%E6%9E%90\" title=\"\u7801\u6d41\u89e3\u6790\">\u7801\u6d41\u89e3\u6790<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#SPS_%E5%92%8C_PPS\" title=\"SPS \u548c PPS\">SPS \u548c PPS<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E5%B8%A7%E9%87%8D%E5%BB%BA\" title=\"\u5e27\u91cd\u5efa\">\u5e27\u91cd\u5efa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E9%94%99%E8%AF%AF%E6%81%A2%E5%A4%8D\" title=\"\u9519\u8bef\u6062\u590d\">\u9519\u8bef\u6062\u590d<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E8%A7%A3%E7%A0%81%E4%BC%98%E5%8C%96\" title=\"\u89e3\u7801\u4f18\u5316\">\u89e3\u7801\u4f18\u5316<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E5%A4%9A%E7%BA%BF%E7%A8%8B%E8%A7%A3%E7%A0%81\" title=\"\u591a\u7ebf\u7a0b\u89e3\u7801\">\u591a\u7ebf\u7a0b\u89e3\u7801<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E7%A1%AC%E4%BB%B6%E5%8A%A0%E9%80%9F\" title=\"\u786c\u4ef6\u52a0\u901f\">\u786c\u4ef6\u52a0\u901f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.v.ixriver.com\/?p=789\/#%E4%BD%8E%E5%BB%B6%E8%BF%9F%E8%A7%A3%E7%A0%81\" title=\"\u4f4e\u5ef6\u8fdf\u89e3\u7801\">\u4f4e\u5ef6\u8fdf\u89e3\u7801<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Video_Decoding\"><\/span>Video Decoding<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\u89e3\u7801\u5c06\u63a5\u6536\u5230\u7684\u538b\u7f29\u89c6\u9891\u6570\u636e\u8fd8\u539f\u4e3a\u539f\u59cb\u89c6\u9891\u5e27\u6570\u636e\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E7%A0%81%E5%99%A8%E7%B1%BB%E5%9E%8B\"><\/span>\u89e3\u7801\u5668\u7c7b\u578b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E8%BD%AF%E4%BB%B6%E8%A7%A3%E7%A0%81%E5%99%A8\"><\/span>\u8f6f\u4ef6\u89e3\u7801\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"FFmpeglibavcodec\"><\/span>FFmpeg\/libavcodec<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong>\u5173\u7cfb\u8bf4\u660e<\/strong>\uff1a<br \/>\n&#8211; <strong>FFmpeg<\/strong> \u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u97f3\u89c6\u9891\u5904\u7406\u6846\u67b6\uff0c\u5305\u542b\u591a\u4e2a\u7ec4\u4ef6<br \/>\n&#8211; <strong>libavcodec<\/strong> \u662f FFmpeg \u9879\u76ee\u4e2d\u7684\u6838\u5fc3\u7f16\u89e3\u7801\u5e93\u7ec4\u4ef6<br \/>\n&#8211; FFmpeg \u4f7f\u7528 libavcodec \u8fdb\u884c\u7f16\u89e3\u7801\u64cd\u4f5c<br \/>\n&#8211; \u56e0\u6b64 &#8220;FFmpeg\/libavcodec&#8221; \u8868\u793a FFmpeg \u6846\u67b6\u4e2d\u7684\u89e3\u7801\u529f\u80fd\uff08\u901a\u8fc7 libavcodec \u5b9e\u73b0\uff09<\/p>\n<p><strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n&#8211; \u652f\u6301\u51e0\u4e4e\u6240\u6709\u4e3b\u6d41\u7f16\u7801\u683c\u5f0f\uff08H.264\u3001H.265\u3001VP8\u3001VP9\u3001AV1\u7b49\uff09<br \/>\n&#8211; \u7eaf\u8f6f\u4ef6\u89e3\u7801\uff0c\u517c\u5bb9\u6027\u6700\u597d<br \/>\n&#8211; \u8de8\u5e73\u53f0\u652f\u6301\uff08Windows\u3001macOS\u3001Linux\u3001Android\u3001iOS\u7b49\uff09<br \/>\n&#8211; \u5f00\u6e90\u514d\u8d39\uff0c\u5e7f\u6cdb\u4f7f\u7528<br \/>\n&#8211; \u89e3\u7801\u8d28\u91cf\u9ad8\uff0c\u529f\u80fd\u5b8c\u6574<\/p>\n<p><strong>\u4f18\u52bf<\/strong>\uff1a<br \/>\n&#8211; \u683c\u5f0f\u652f\u6301\u6700\u5168\u9762<br \/>\n&#8211; \u4ee3\u7801\u6210\u719f\u7a33\u5b9a<br \/>\n&#8211; \u793e\u533a\u6d3b\u8dc3\uff0c\u6301\u7eed\u66f4\u65b0<\/p>\n<p><strong>\u52a3\u52bf<\/strong>\uff1a<br \/>\n&#8211; CPU \u5360\u7528\u8f83\u9ad8\uff08\u76f8\u6bd4\u786c\u4ef6\u89e3\u7801\uff09<br \/>\n&#8211; \u89e3\u7801\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162\uff08\u7eaf\u8f6f\u4ef6\u5b9e\u73b0\uff09<\/p>\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n&#8211; \u901a\u7528\u89c6\u9891\u64ad\u653e\u5668<br \/>\n&#8211; \u89c6\u9891\u8f6c\u7801\u548c\u5904\u7406\u5de5\u5177<br \/>\n&#8211; \u8de8\u5e73\u53f0\u5e94\u7528\u5f00\u53d1<br \/>\n&#8211; \u9700\u8981\u652f\u6301\u591a\u79cd\u683c\u5f0f\u7684\u573a\u666f<\/p>\n<h4><span class=\"ez-toc-section\" id=\"libvpx\"><\/span>libvpx<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong>\u7c7b\u578b<\/strong>\uff1aVP8\/VP9 \u7f16\u89e3\u7801\u5e93\uff08Google \u5f00\u6e90\uff09<\/p>\n<p><strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n&#8211; \u4e13\u95e8\u7528\u4e8e VP8 \u548c VP9 \u683c\u5f0f\u7684\u7f16\u89e3\u7801<br \/>\n&#8211; \u652f\u6301 VP8\/VP9 \u7684\u8f6f\u4ef6\u7f16\u89e3\u7801<br \/>\n&#8211; \u5f00\u6e90\u514d\u8d39\uff0c\u65e0\u4e13\u5229\u9650\u5236<br \/>\n&#8211; \u89e3\u7801\u8d28\u91cf\u597d\uff0c\u6027\u80fd\u4f18\u5316<\/p>\n<p><strong>\u4f18\u52bf<\/strong>\uff1a<br \/>\n&#8211; VP8\/VP9 \u683c\u5f0f\u7684\u5b98\u65b9\u53c2\u8003\u5b9e\u73b0<br \/>\n&#8211; \u65e0\u4e13\u5229\u98ce\u9669<br \/>\n&#8211; \u9002\u5408 Web \u5e94\u7528\uff08WebM \u683c\u5f0f\uff09<\/p>\n<p><strong>\u52a3\u52bf<\/strong>\uff1a<br \/>\n&#8211; \u4ec5\u652f\u6301 VP8\/VP9 \u683c\u5f0f<br \/>\n&#8211; \u4f7f\u7528\u573a\u666f\u76f8\u5bf9\u6709\u9650<\/p>\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n&#8211; WebM \u89c6\u9891\u64ad\u653e<br \/>\n&#8211; WebRTC \u89c6\u9891\u901a\u8bdd<br \/>\n&#8211; \u9700\u8981 VP8\/VP9 \u89e3\u7801\u7684\u5e94\u7528<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%A1%AC%E4%BB%B6%E8%A7%A3%E7%A0%81%E5%99%A8\"><\/span>\u786c\u4ef6\u89e3\u7801\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u786c\u4ef6\u52a0\u901f\u89e3\u7801<\/strong>\uff1a\u5229\u7528GPU\u6216\u4e13\u7528\u786c\u4ef6\u8fdb\u884c\u89e3\u7801<\/p>\n<p><strong>\u5e73\u53f0\u652f\u6301<\/strong>\uff1a<br \/>\n&#8211; Windows: DXVA2\u3001D3D11 Video<br \/>\n&#8211; macOS\/iOS: VideoToolbox<br \/>\n&#8211; Android: MediaCodec<br \/>\n&#8211; Linux: VDPAU\u3001VAAPI<\/p>\n<p><strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n&#8211; CPU \u5360\u7528\u6781\u4f4e<br \/>\n&#8211; \u89e3\u7801\u901f\u5ea6\u6781\u5feb<br \/>\n&#8211; \u9700\u8981\u786c\u4ef6\u652f\u6301\uff0c\u517c\u5bb9\u6027\u4e2d\u7b49<br \/>\n&#8211; \u901a\u5e38\u652f\u6301 H.264\/H.265 \u683c\u5f0f<\/p>\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<br \/>\n&#8211; \u9ad8\u6027\u80fd\u89c6\u9891\u64ad\u653e<br \/>\n&#8211; \u4f4e\u529f\u8017\u9700\u6c42\u573a\u666f<br \/>\n&#8211; \u79fb\u52a8\u8bbe\u5907\u89c6\u9891\u89e3\u7801<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E7%A0%81%E5%99%A8%E5%AF%B9%E6%AF%94\"><\/span>\u89e3\u7801\u5668\u5bf9\u6bd4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>\u89e3\u7801\u5668<\/th>\n<th>\u652f\u6301\u683c\u5f0f<\/th>\n<th>\u7c7b\u578b<\/th>\n<th>CPU\u5360\u7528<\/th>\n<th>\u89e3\u7801\u901f\u5ea6<\/th>\n<th>\u517c\u5bb9\u6027<\/th>\n<th>\u4e3b\u8981\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>libavcodec<\/strong><\/td>\n<td>H.264\u3001H.265\u3001VP8\u3001VP9\u3001AV1\u7b49\u51e0\u4e4e\u6240\u6709\u683c\u5f0f<\/td>\n<td>\u8f6f\u4ef6<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u6700\u597d<\/td>\n<td>\u901a\u7528\u89c6\u9891\u89e3\u7801<\/td>\n<\/tr>\n<tr>\n<td><strong>libvpx<\/strong><\/td>\n<td>VP8\u3001VP9<\/td>\n<td>\u8f6f\u4ef6<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u5feb<\/td>\n<td>\u826f\u597d<\/td>\n<td>VP8\/VP9\u4e13\u7528\u89e3\u7801<\/td>\n<\/tr>\n<tr>\n<td><strong>\u786c\u4ef6\u89e3\u7801\u5668<\/strong><\/td>\n<td>\u53d6\u51b3\u4e8e\u786c\u4ef6\uff08\u901a\u5e38\u652f\u6301H.264\/H.265\uff09<\/td>\n<td>\u786c\u4ef6\u52a0\u901f<\/td>\n<td>\u6781\u4f4e<\/td>\n<td>\u6781\u5feb<\/td>\n<td>\u4e2d\u7b49\uff08\u9700\u786c\u4ef6\u652f\u6301\uff09<\/td>\n<td>\u9ad8\u6027\u80fd\u89e3\u7801<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"FFmpeg_%E7%BB%84%E4%BB%B6%E5%85%B3%E7%B3%BB\"><\/span>FFmpeg \u7ec4\u4ef6\u5173\u7cfb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>FFmpeg \u9879\u76ee\u5305\u542b\u4ee5\u4e0b\u4e3b\u8981\u7ec4\u4ef6\uff1a<br \/>\n&#8211; <strong>libavcodec<\/strong>\uff1a\u7f16\u89e3\u7801\u5e93\uff08\u5305\u542b\u5404\u79cd\u683c\u5f0f\u7684\u7f16\u89e3\u7801\u5668\uff09<br \/>\n&#8211; <strong>libavformat<\/strong>\uff1a\u5bb9\u5668\u683c\u5f0f\u5904\u7406\u5e93\uff08MP4\u3001FLV\u3001MKV\u7b49\uff09<br \/>\n&#8211; <strong>libavfilter<\/strong>\uff1a\u97f3\u89c6\u9891\u6ee4\u955c\u5e93<br \/>\n&#8211; <strong>libavutil<\/strong>\uff1a\u5de5\u5177\u5e93<br \/>\n&#8211; <strong>libswscale<\/strong>\uff1a\u56fe\u50cf\u7f29\u653e\u548c\u683c\u5f0f\u8f6c\u6362\u5e93<br \/>\n&#8211; <strong>libswresample<\/strong>\uff1a\u97f3\u9891\u91cd\u91c7\u6837\u5e93<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E4%BD%BF%E7%94%A8%E5%BB%BA%E8%AE%AE\"><\/span>\u4f7f\u7528\u5efa\u8bae<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>\u901a\u7528\u89e3\u7801<\/strong>\uff1a\u4f18\u5148\u4f7f\u7528 FFmpeg\/libavcodec\uff0c\u683c\u5f0f\u652f\u6301\u6700\u5168\u9762<\/li>\n<li><strong>VP8\/VP9 \u4e13\u7528<\/strong>\uff1a\u53ef\u4ee5\u4f7f\u7528 libvpx\uff0c\u9488\u5bf9\u6027\u5f3a<\/li>\n<li><strong>\u9ad8\u6027\u80fd\u9700\u6c42<\/strong>\uff1a\u4f18\u5148\u4f7f\u7528\u786c\u4ef6\u89e3\u7801\u5668\uff08\u5982\u679c\u786c\u4ef6\u652f\u6301\uff09<\/li>\n<li><strong>\u8de8\u5e73\u53f0\u5f00\u53d1<\/strong>\uff1a\u63a8\u8350\u4f7f\u7528 FFmpeg\uff0c\u517c\u5bb9\u6027\u6700\u597d<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E7%A0%81%E6%B5%81%E7%A8%8B\"><\/span>\u89e3\u7801\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E7%A0%81%E6%B5%81%E8%A7%A3%E6%9E%90\"><\/span>\u7801\u6d41\u89e3\u6790<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u89e3\u6790\u5bb9\u5668\u683c\u5f0f\uff08MP4\u3001FLV\u3001MKV\u7b49\uff09<\/li>\n<li>\u63d0\u53d6\u7f16\u7801\u53c2\u6570\uff08\u5206\u8fa8\u7387\u3001\u5e27\u7387\u3001GOP\u7ed3\u6784\u7b49\uff09<\/li>\n<li>\u89e3\u6790NAL\u5355\u5143\uff08H.264\/H.265\uff09\u6216\u5e27\u6570\u636e<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"SPS_%E5%92%8C_PPS\"><\/span>SPS \u548c PPS<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong>SPS (Sequence Parameter Set)<\/strong> &#8211; \u5e8f\u5217\u53c2\u6570\u96c6\uff1a<br \/>\n&#8211; \u5305\u542b\u89c6\u9891\u5e8f\u5217\u7684\u5168\u5c40\u53c2\u6570\u4fe1\u606f<br \/>\n&#8211; \u4e3b\u8981\u53c2\u6570\u5305\u62ec\uff1a<br \/>\n  &#8211; \u89c6\u9891\u5206\u8fa8\u7387\uff08\u5bbd\u5ea6\u3001\u9ad8\u5ea6\uff09<br \/>\n  &#8211; \u5e27\u7387\u4fe1\u606f<br \/>\n  &#8211; \u7f16\u7801\u6863\u6b21\uff08Profile\uff09\u548c\u7ea7\u522b\uff08Level\uff09<br \/>\n  &#8211; \u8272\u5ea6\u683c\u5f0f\u548c\u4f4d\u6df1<br \/>\n  &#8211; GOP \u7ed3\u6784\u76f8\u5173\u53c2\u6570<br \/>\n&#8211; \u5728\u89e3\u7801\u5668\u521d\u59cb\u5316\u65f6\u5fc5\u987b\u5148\u83b7\u53d6 SPS\uff0c\u7528\u4e8e\u914d\u7f6e\u89e3\u7801\u5668\u53c2\u6570<br \/>\n&#8211; \u901a\u5e38\u51fa\u73b0\u5728\u7801\u6d41\u5f00\u59cb\u4f4d\u7f6e\uff0c\u6216\u5173\u952e\u5e27\uff08I\u5e27\uff09\u4e4b\u524d<\/p>\n<p><strong>PPS (Picture Parameter Set)<\/strong> &#8211; \u56fe\u50cf\u53c2\u6570\u96c6\uff1a<br \/>\n&#8211; \u5305\u542b\u5355\u4e2a\u56fe\u50cf\u6216\u56fe\u50cf\u5e8f\u5217\u7684\u7f16\u7801\u53c2\u6570<br \/>\n&#8211; \u4e3b\u8981\u53c2\u6570\u5305\u62ec\uff1a<br \/>\n  &#8211; \u71b5\u7f16\u7801\u6a21\u5f0f\uff08CABAC\/CAVLC\uff09<br \/>\n  &#8211; \u91cf\u5316\u53c2\u6570\u76f8\u5173\u8bbe\u7f6e<br \/>\n  &#8211; \u53bb\u5757\u6ee4\u6ce2\u53c2\u6570<br \/>\n  &#8211; \u53c2\u8003\u5e27\u6570\u91cf<br \/>\n&#8211; \u6bcf\u4e2a\u56fe\u50cf\u53ef\u4ee5\u5f15\u7528\u4e0d\u540c\u7684 PPS<br \/>\n&#8211; \u89e3\u7801\u6bcf\u4e2a\u56fe\u50cf\u524d\u9700\u8981\u5148\u83b7\u53d6\u5bf9\u5e94\u7684 PPS<\/p>\n<p><strong>\u5173\u7cfb\u4e0e\u4f5c\u7528<\/strong>\uff1a<br \/>\n&#8211; SPS \u548c PPS \u662f H.264\/H.265 \u7f16\u7801\u6807\u51c6\u4e2d\u7684\u53c2\u6570\u96c6<br \/>\n&#8211; \u89e3\u7801\u5668\u5fc5\u987b\u5148\u89e3\u6790 SPS \u548c PPS \u624d\u80fd\u6b63\u786e\u89e3\u7801\u540e\u7eed\u7684\u89c6\u9891\u5e27<br \/>\n&#8211; \u5728\u5b9e\u65f6\u6d41\u4f20\u8f93\u4e2d\uff0cSPS \u548c PPS \u901a\u5e38\u9700\u8981\u5355\u72ec\u4f20\u8f93\u6216\u5d4c\u5165\u5728\u5173\u952e\u5e27\u4e2d<br \/>\n&#8211; \u5982\u679c SPS\/PPS \u4e22\u5931\uff0c\u89e3\u7801\u5668\u65e0\u6cd5\u6b63\u786e\u89e3\u7801\u89c6\u9891\u5e27<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E5%B8%A7%E9%87%8D%E5%BB%BA\"><\/span>\u5e27\u91cd\u5efa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>I\u5e27\u89e3\u7801<\/strong>\uff1a\u76f4\u63a5\u91cd\u5efa<\/li>\n<li><strong>P\u5e27\u89e3\u7801<\/strong>\uff1a\u53c2\u8003\u524d\u4e00\u5e27\u8fdb\u884c\u8fd0\u52a8\u8865\u507f<\/li>\n<li><strong>B\u5e27\u89e3\u7801<\/strong>\uff1a\u53c2\u8003\u524d\u540e\u4e24\u5e27\u8fdb\u884c\u53cc\u5411\u9884\u6d4b<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E9%94%99%E8%AF%AF%E6%81%A2%E5%A4%8D\"><\/span>\u9519\u8bef\u6062\u590d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u68c0\u6d4b\u4e22\u5305\u6216\u9519\u8bef\u5e27<\/li>\n<li>\u4f7f\u7528\u9519\u8bef\u9690\u85cf\u6280\u672f\uff08\u590d\u5236\u524d\u4e00\u5e27\u3001\u63d2\u503c\u7b49\uff09<\/li>\n<li>\u8bf7\u6c42\u5173\u952e\u5e27\u91cd\u4f20<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E7%A0%81%E4%BC%98%E5%8C%96\"><\/span>\u89e3\u7801\u4f18\u5316<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E5%A4%9A%E7%BA%BF%E7%A8%8B%E8%A7%A3%E7%A0%81\"><\/span>\u591a\u7ebf\u7a0b\u89e3\u7801<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>\u5e27\u7ea7\u5e76\u884c<\/strong>\uff1a\u591a\u5e27\u540c\u65f6\u89e3\u7801<\/li>\n<li><strong>\u7247\u7ea7\u5e76\u884c<\/strong>\uff1a\u5355\u5e27\u5206\u7247\u5e76\u884c\u89e3\u7801<\/li>\n<li>\u6ce8\u610f\u7ebf\u7a0b\u540c\u6b65\u548c\u5185\u5b58\u7ba1\u7406<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E7%A1%AC%E4%BB%B6%E5%8A%A0%E9%80%9F\"><\/span>\u786c\u4ef6\u52a0\u901f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u4f7f\u7528GPU\u6216\u4e13\u7528\u786c\u4ef6\u89e3\u7801\uff0c\u5927\u5e45\u964d\u4f4eCPU\u5360\u7528<\/li>\n<li>\u6ce8\u610f\u786c\u4ef6\u517c\u5bb9\u6027\u548c\u683c\u5f0f\u652f\u6301<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E4%BD%8E%E5%BB%B6%E8%BF%9F%E8%A7%A3%E7%A0%81\"><\/span>\u4f4e\u5ef6\u8fdf\u89e3\u7801<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u51cf\u5c11\u7f13\u51b2\u5e27\u6570<\/li>\n<li>\u4f18\u5148\u89e3\u7801\u5173\u952e\u5e27<\/li>\n<li>\u5feb\u901f\u542f\u52a8\u89e3\u7801\u5668<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Video Decoding \u6982\u8ff0 \u89c6\u9891\u89e3\u7801\u5c06\u63a5\u6536\u5230\u7684\u538b\u7f29\u89c6\u9891\u6570\u636e\u8fd8\u539f\u4e3a\u539f\u59cb\u89c6\u9891\u5e27\u6570\u636e\u3002 \u89e3\u7801\u5668\u7c7b\u578b \u8f6f\u4ef6\u89e3\u7801 [&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 Decoding\u6982\u8ff0\u89e3\u7801\u5668\u7c7b\u578b\u8f6f\u4ef6\u89e3\u7801\u5668FFmpeg\/libavcodeclibvpx\u786c\u4ef6\u89e3\u7801\u5668\u89e3\u7801\u5668\u5bf9\u6bd4FFmpeg \u7ec4\u4ef6\u5173\u7cfb\u4f7f\u7528\u5efa\u8bae\u89e3\u7801\u6d41\u7a0b\u7801\u6d41\u89e3\u6790SPS \u548c PP&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/www.v.ixriver.com\/?cat=28\" rel=\"category\">\u89c6\u9891<\/a>","author_info":{"name":"admin","url":"https:\/\/www.v.ixriver.com\/?author=1"},"comments_num":"0 comments","_links":{"self":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/789"}],"collection":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=789"}],"version-history":[{"count":0,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/789\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}