{"id":1087,"date":"2021-12-26T23:14:17","date_gmt":"2021-12-26T15:14:17","guid":{"rendered":"https:\/\/blog.cauchyschwarz.com\/?p=1087"},"modified":"2021-12-26T23:14:22","modified_gmt":"2021-12-26T15:14:22","slug":"x264%e7%bc%96%e7%a0%81%e5%8f%82%e6%95%b0%e8%b0%83%e6%95%b4","status":"publish","type":"post","link":"https:\/\/blog.cauchyschwarz.com\/?p=1087","title":{"rendered":"x264\u7f16\u7801\u53c2\u6570\u8c03\u6574"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69ea0f5689d91\" class=\"ez-toc-cssicon-toggle-label\"><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><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69ea0f5689d91\" checked aria-label=\"Toggle\" \/><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:\/\/blog.cauchyschwarz.com\/?p=1087\/#ffmpeg%E5%AE%9E%E7%8E%B0%E7%A1%AC%E4%BB%B6%E8%BD%AC%E7%A0%81%E7%9A%84%E4%BB%8B%E7%BB%8D\" >ffmpeg\u5b9e\u73b0(\u786c\u4ef6)\u8f6c\u7801\u7684\u4ecb\u7ecd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#%E7%BC%96%E7%A0%81%E5%8F%82%E6%95%B0\" >\u7f16\u7801\u53c2\u6570<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#1_QPQStep%E9%87%8F%E5%8C%96%E6%AD%A5%E9%95%BF\" >1. QP(QStep,\u91cf\u5316\u6b65\u957f)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#SPS%E4%B8%AD%E7%9A%84%E5%8F%82%E6%95%B0\" >SPS\u4e2d\u7684\u53c2\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#%E7%BC%96%E7%A0%81%E6%B5%81%E6%8E%A7%E5%88%B6%E7%AD%96%E7%95%A5\" >\u7f16\u7801\u6d41\u63a7\u5236\u7b56\u7565<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#zerolatency\" >zerolatency<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#nvidia%E7%A1%AC%E8%BD%AC%E7%9A%84%E5%8F%82%E6%95%B0%E8%B0%83%E6%95%B4\" >nvidia\u786c\u8f6c\u7684\u53c2\u6570\u8c03\u6574<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#1_AQAdaptive_Quntization\" >1. AQ(Adaptive Quntization)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#%E5%AE%9E%E9%99%85%E5%BA%94%E7%94%A8\" >\u5b9e\u9645\u5e94\u7528<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#%E6%96%B9%E5%9D%97%E6%95%88%E5%BA%94\" >\u65b9\u5757\u6548\u5e94<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=1087\/#%E5%91%BC%E5%90%B8%E6%95%88%E5%BA%94\" >\u547c\u5438\u6548\u5e94<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\" id=\"ffmpege5ae9ee78eb0e7a1ace4bbb6e8bdace7a081e79a84e4bb8be7bb8d-1\"><span class=\"ez-toc-section\" id=\"ffmpeg%E5%AE%9E%E7%8E%B0%E7%A1%AC%E4%BB%B6%E8%BD%AC%E7%A0%81%E7%9A%84%E4%BB%8B%E7%BB%8D\"><\/span>ffmpeg\u5b9e\u73b0(\u786c\u4ef6)\u8f6c\u7801\u7684\u4ecb\u7ecd<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p><a href=\"https:\/\/www.cxyzjd.com\/article\/qq_22633333\/107701301#3IDRI_26\">https:\/\/www.cxyzjd.com\/article\/qq_22633333\/107701301#3IDRI_26<\/a><\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"e7bc96e7a081e58f82e695b0-1\"><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E5%8F%82%E6%95%B0\"><\/span>\u7f16\u7801\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>x264\u7f16\u7801\u53c2\u6570\u8c03\u6574\uff1a<br><a href=\"https:\/\/www.jianshu.com\/p\/b46a33dd958d\">https:\/\/www.jianshu.com\/p\/b46a33dd958d<\/a><br><a href=\"https:\/\/www.codenong.com\/cs106748283\/\">https:\/\/www.codenong.com\/cs106748283\/<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-qpqstepe9878fe58c96e6ada5e995bf-1\"><span class=\"ez-toc-section\" id=\"1_QPQStep%E9%87%8F%E5%8C%96%E6%AD%A5%E9%95%BF\"><\/span>1. QP(QStep,\u91cf\u5316\u6b65\u957f)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/blog.csdn.net\/qq_18998145\/article\/details\/106419963\">https:\/\/blog.csdn.net\/qq_18998145\/article\/details\/106419963<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>min qp \u63a7\u5236\u7f16\u7801\u5668\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5c0f\u91cf\u5316\u6b65\u957f, \u592a\u9ad8\u4f1a\u5f71\u54cd\u8f93\u51fa\u753b\u9762\u7684\u7ec6\u8282<\/li><li>max qp \u63a7\u5236\u7f16\u7801\u5668\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927\u91cf\u5316\u6b65\u957f<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"spse4b8ade79a84e58f82e695b0-1\"><span class=\"ez-toc-section\" id=\"SPS%E4%B8%AD%E7%9A%84%E5%8F%82%E6%95%B0\"><\/span>SPS\u4e2d\u7684\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/blog.csdn.net\/xiaojun111111\/article\/details\/52090185\">https:\/\/blog.csdn.net\/xiaojun111111\/article\/details\/52090185<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>profile \u6709baseline,main,extended\u4e09\u79cd\uff0c\u5b9a\u4e49\u4e86\u53ef\u7528\u7684\u538b\u7f29\u7279\u6027\uff0c\u6bcf\u4e2aprofile\u5177\u4f53\u53ef\u4ee5\u4f7f\u7528\u54ea\u4e9b\u7279\u6027\u53ef\u4ee5\u770b\u4e0a\u9762\u8fd9\u4e2a\u94fe\u63a5\u3002<\/li><li>level \u6839\u636e\u89e3\u7801\u7aef\u7684\u8d1f\u8f7d\u548c\u5b58\u50a8\u7a7a\u95f4\u60c5\u51b5\u5bf9\u5173\u952e\u53c2\u6570(\u6700\u5927\u91c7\u6837\u7387\u3001\u6700\u5927\u56fe\u50cf\u5c3a\u5bf8\u3001\u5206\u8fa8\u7387\u3001\u6700\u5c0f\u538b\u7f29\u6bd4\u3001\u6700\u5927\u6bd4\u7279\u7387\u3001\u89e3\u7801\u7f13\u51b2\u533aDPB\u5927\u5c0f\u7b49)\u52a0\u4ee5\u9650\u5236\u3002\u5177\u4f53\u4e5f\u53ef\u4ee5\u770b\u4e0a\u9762\u7684\u94fe\u63a5\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"e7bc96e7a081e6b581e68ea7e588b6e7ad96e795a5-1\"><span class=\"ez-toc-section\" id=\"%E7%BC%96%E7%A0%81%E6%B5%81%E6%8E%A7%E5%88%B6%E7%AD%96%E7%95%A5\"><\/span>\u7f16\u7801\u6d41\u63a7\u5236\u7b56\u7565<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>CQ \u8868\u793a\u5b8c\u5168\u4e0d\u63a7\u5236\u7801\u7387\uff0c\u5c3d\u6700\u5927\u53ef\u80fd\u4fdd\u8bc1\u56fe\u50cf\u8d28\u91cf\uff0c\u5bf9\u4e8e\u8d28\u91cf\u8981\u6c42\u9ad8\u3001\u4e0d\u5728\u4e4e\u5e26\u5bbd\uff08\u4f8b\u5982\u672c\u5730\u5b58\u6587\u4ef6\uff09\u3001\u89e3\u7801\u5668\u652f\u6301\u7801\u7387\u5267\u70c8\u6ce2\u52a8\u7684\u60c5\u51b5\uff0c\u663e\u7136 CQ \u662f\u4e0d\u4e8c\u4e4b\u9009\u3002<\/li><li>CBR\uff08Constants BitRate\u5373\u9759\u6001\u7801\u7387 \u5c3d\u91cf\u4fdd\u969c\u7801\u7387\u7387\uff09\u65f6P\u5e27\u5927\u5c0f\u57fa\u672c\u6052\u5b9a\uff1b<\/li><li>VBR\uff08Variable Bitrate\u52a8\u6001\u7801\u7387 \u5c3d\u91cf\u4fdd\u969c\u6e05\u6670\u5ea6\u6ce2\u52a8\u5c0f\uff09\u65f6\u53d8\u5316\u4f1a\u6bd4\u8f83\u5267\u70c8\uff1b<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"zerolatency-1\"><span class=\"ez-toc-section\" id=\"zerolatency\"><\/span>zerolatency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/blog.csdn.net\/DeliaPu\/article\/details\/77004392\">https:\/\/blog.csdn.net\/DeliaPu\/article\/details\/77004392<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>rc_lookahead<\/li><li>sync_lookahead<\/li><li>bframes<\/li><li>slice_threads<\/li><li>vfr_input<\/li><li>mb_tree<\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"nvidiae7a1ace8bdace79a84e58f82e695b0e8b083e695b4-1\"><span class=\"ez-toc-section\" id=\"nvidia%E7%A1%AC%E8%BD%AC%E7%9A%84%E5%8F%82%E6%95%B0%E8%B0%83%E6%95%B4\"><\/span>nvidia\u786c\u8f6c\u7684\u53c2\u6570\u8c03\u6574<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p><a href=\"https:\/\/docs.nvidia.com\/video-technologies\/video-codec-sdk\/nvenc-video-encoder-api-prog-guide\/\">https:\/\/docs.nvidia.com\/video-technologies\/video-codec-sdk\/nvenc-video-encoder-api-prog-guide\/<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-aqadaptive-quntization-1\"><span class=\"ez-toc-section\" id=\"1_AQAdaptive_Quntization\"><\/span>1. AQ(Adaptive Quntization)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6839\u636e\u753b\u9762\u7684\u65f6\u95f4\u548c\u7a7a\u95f4\u7279\u6027\uff0c\u8c03\u6574\u5728\u7801\u7387\u63a7\u5236\u7b97\u6cd5\u4f30\u7b97\u51fa\u6765\u7684QP\u503c\uff0c\u63d0\u4f9b\u4e24\u79cd\u6a21\u5f0f\uff1a a. Spatial AQ \u8ba9\u753b\u9762\u5185\u590d\u6742\u7684\u533a\u57df\u5360\u7528\u66f4\u591a\u7684bit<br>b. Temporal AQ \u8ba9\u753b\u9762\u5185\u5bb9\u66f4\u590d\u6742\u7684\u5e27\u5360\u7528\u66f4\u591a\u7684bit&nbsp;<a href=\"https:\/\/www.reddit.com\/r\/ffmpeg\/comments\/gg5szi\/what_is_spatial_aq_and_temporal_aq_with_nvenc\/\">https:\/\/www.reddit.com\/r\/ffmpeg\/comments\/gg5szi\/what_is_spatial_aq_and_temporal_aq_with_nvenc\/<\/a><\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"e5ae9ee99985e5ba94e794a8-1\"><span class=\"ez-toc-section\" id=\"%E5%AE%9E%E9%99%85%E5%BA%94%E7%94%A8\"><\/span>\u5b9e\u9645\u5e94\u7528<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"e696b9e59d97e69588e5ba94-1\"><span class=\"ez-toc-section\" id=\"%E6%96%B9%E5%9D%97%E6%95%88%E5%BA%94\"><\/span>\u65b9\u5757\u6548\u5e94<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"e591bce590b8e69588e5ba94-1\"><span class=\"ez-toc-section\" id=\"%E5%91%BC%E5%90%B8%E6%95%88%E5%BA%94\"><\/span>\u547c\u5438\u6548\u5e94<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/blog.csdn.net\/szfhy\/article\/details\/79882903\">https:\/\/blog.csdn.net\/szfhy\/article\/details\/79882903<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ffmpeg\u5b9e\u73b0(\u786c\u4ef6)\u8f6c\u7801\u7684\u4ecb\u7ecd https:\/\/www.cxyzjd.com\/article\/qq_22633333\/107701301#3IDRI_26 \u7f16\u7801\u53c2\u6570 x264\u7f16\u7801\u53c2\u6570\u8c03\u6574\uff1ahttp&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[129],"class_list":["post-1087","post","type-post","status-publish","format-standard","hentry","category-10","tag-h264"],"_links":{"self":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/1087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1087"}],"version-history":[{"count":1,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/1087\/revisions"}],"predecessor-version":[{"id":1088,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/1087\/revisions\/1088"}],"wp:attachment":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}