{"id":96,"date":"2025-05-08T15:25:57","date_gmt":"2025-05-08T07:25:57","guid":{"rendered":"https:\/\/www.wenbo828.cn\/?p=96"},"modified":"2025-05-08T15:36:38","modified_gmt":"2025-05-08T07:36:38","slug":"%e8%a7%86%e9%a2%91%e7%bc%96%e7%a0%81%e4%b8%ad%e7%9a%84-vbr-cbr-abr-crf-%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/www.wenbo828.cn\/index.php\/2025\/05\/08\/%e8%a7%86%e9%a2%91%e7%bc%96%e7%a0%81%e4%b8%ad%e7%9a%84-vbr-cbr-abr-crf-%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab\/","title":{"rendered":"\u89c6\u9891\u7f16\u7801\u4e2d\u7684 VBR CBR ABR CRF \u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"\n

\u5728\u89c6\u9891\u7f16\u7801\u4e2d\uff0cVBR\u3001CBR\u3001ABR \u548c CRF<\/strong> \u662f\u5e38\u89c1\u7684\u7801\u7387\u63a7\u5236\u6a21\u5f0f\uff0c\u5b83\u4eec\u51b3\u5b9a\u4e86\u7f16\u7801\u5668\u5982\u4f55\u5206\u914d\u6bd4\u7279\u7387\u4ee5\u5e73\u8861\u89c6\u9891\u8d28\u91cf\u548c\u6587\u4ef6\u5927\u5c0f\u3002\u4ee5\u4e0b\u662f\u5b83\u4eec\u7684\u6838\u5fc3\u533a\u522b\u548c\u9002\u7528\u573a\u666f\uff1a<\/p>\n

\n

1. CBR\uff08Constant Bitrate\uff0c\u6052\u5b9a\u7801\u7387\uff09<\/h3>\n
    \n
  • \u539f\u7406<\/strong>\uff1a\u7f16\u7801\u5668\u59cb\u7ec8\u4ee5\u56fa\u5b9a\u7684\u6bd4\u7279\u7387\u8f93\u51fa\u89c6\u9891\uff0c\u65e0\u8bba\u753b\u9762\u590d\u6742\u5ea6\u5982\u4f55\u53d8\u5316\u3002<\/li>\n
  • \u7279\u70b9<\/strong>\uff1a\n
      \n
    • \u6587\u4ef6\u5927\u5c0f\u53ef\u9884\u6d4b\uff08\u6bd4\u7279\u7387 \u00d7 \u65f6\u957f = \u6587\u4ef6\u5927\u5c0f\uff09\u3002<\/li>\n
    • \u7b80\u5355\u7f51\u7edc\u4f20\u8f93\u53cb\u597d\uff08\u5982\u76f4\u64ad\u3001\u5b9e\u65f6\u901a\u4fe1\uff09\uff0c\u56e0\u4e3a\u5e26\u5bbd\u9700\u6c42\u7a33\u5b9a\u3002<\/li>\n
    • \u7f3a\u70b9<\/strong>\uff1a\u590d\u6742\u573a\u666f\uff08\u5982\u5feb\u901f\u8fd0\u52a8\u3001\u9ad8\u7ec6\u8282\uff09\u53ef\u80fd\u56e0\u7801\u7387\u4e0d\u8db3\u5bfc\u81f4\u8d28\u91cf\u4e0b\u964d\uff1b\u7b80\u5355\u573a\u666f\uff08\u5982\u9759\u6001\u753b\u9762\uff09\u5219\u6d6a\u8d39\u7801\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u76f4\u64ad\u63a8\u6d41\u3001\u89c6\u9891\u4f1a\u8bae\u3001\u5b9e\u65f6\u901a\u4fe1\uff08\u5982RTMP\u3001HLS\u76f4\u64ad\uff09\u3002<\/li>\n<\/ul>\n
      \n

      2. VBR\uff08Variable Bitrate\uff0c\u53ef\u53d8\u7801\u7387\uff09<\/h3>\n
        \n
      • \u539f\u7406<\/strong>\uff1a\u7f16\u7801\u5668\u6839\u636e\u753b\u9762\u590d\u6742\u5ea6\u52a8\u6001\u8c03\u6574\u6bd4\u7279\u7387\uff0c\u590d\u6742\u573a\u666f\u5206\u914d\u66f4\u9ad8\u7801\u7387\uff0c\u7b80\u5355\u573a\u666f\u964d\u4f4e\u7801\u7387\u3002<\/li>\n
      • \u7279\u70b9<\/strong>\uff1a\n
          \n
        • \u5728\u76f8\u540c\u5e73\u5747\u7801\u7387\u4e0b\uff0c\u8d28\u91cf\u901a\u5e38\u4f18\u4e8eCBR\uff08\u56e0\u4e3a\u4f18\u5148\u4fdd\u969c\u9ad8\u590d\u6742\u5ea6\u573a\u666f\uff09\u3002<\/li>\n
        • \u6587\u4ef6\u5927\u5c0f\u4e0d\u53ef\u7cbe\u786e\u9884\u6d4b\uff0c\u53ef\u80fd\u6bd4CBR\u66f4\u5927\u3002<\/li>\n
        • \u7f3a\u70b9<\/strong>\uff1a\u4e0d\u9002\u7528\u4e8e\u5bf9\u5e26\u5bbd\u8981\u6c42\u4e25\u683c\u7684\u573a\u666f\uff08\u5982\u76f4\u64ad\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u672c\u5730\u5b58\u50a8\u3001\u70b9\u64ad\u89c6\u9891\uff08\u5982YouTube\u3001Netflix\uff09\u3001\u9700\u8981\u9ad8\u753b\u8d28\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n
          \n

          3. ABR\uff08Average Bitrate\uff0c\u5e73\u5747\u7801\u7387\uff09<\/h3>\n
            \n
          • \u539f\u7406<\/strong>\uff1a\u4ecb\u4e8eCBR\u548cVBR\u4e4b\u95f4\uff0c\u7f16\u7801\u5668\u4ee5\u76ee\u6807\u5e73\u5747\u7801\u7387\u4e3a\u57fa\u51c6\uff0c\u5141\u8bb8\u52a8\u6001\u8c03\u6574\uff0c\u4f46\u4f1a\u5c3d\u91cf\u63a5\u8fd1\u76ee\u6807\u503c\u3002<\/li>\n
          • \u7279\u70b9<\/strong>\uff1a\n
              \n
            • \u6bd4CBR\u66f4\u7075\u6d3b\uff0c\u6bd4VBR\u66f4\u53ef\u63a7\u6587\u4ef6\u5927\u5c0f\u3002<\/li>\n
            • \u5728\u590d\u6742\u573a\u666f\u53ef\u80fd\u77ed\u6682\u8d85\u51fa\u5e73\u5747\u7801\u7387\uff0c\u7b80\u5355\u573a\u666f\u4f4e\u4e8e\u5e73\u5747\u7801\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n
            • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u9700\u8981\u5e73\u8861\u6587\u4ef6\u5927\u5c0f\u548c\u8d28\u91cf\u7684\u573a\u666f\uff08\u5982\u7f51\u7edc\u89c6\u9891\u53d1\u5e03\uff09\u3002<\/li>\n<\/ul>\n
              \n

              4. CRF\uff08Constant Rate Factor\uff0c\u6052\u5b9a\u8d28\u91cf\u56e0\u5b50\uff09<\/h3>\n
                \n
              • \u539f\u7406<\/strong>\uff1a\u4ee5\u8d28\u91cf\u4e3a\u4f18\u5148\u76ee\u6807\uff0c\u7f16\u7801\u5668\u52a8\u6001\u8c03\u6574\u6bd4\u7279\u7387\u4ee5\u786e\u4fdd\u753b\u9762\u8d28\u91cf\u6052\u5b9a\uff08\u901a\u8fc7\u91cf\u5316\u53c2\u6570QP\u63a7\u5236\uff09\u3002<\/li>\n
              • \u7279\u70b9<\/strong>\uff1a\n
                  \n
                • \u8f93\u51fa\u7801\u7387\u4e0d\u56fa\u5b9a\uff0c\u8d28\u91cf\u7a33\u5b9a\uff08\u5982CRF=23\u65f6\uff0c\u6240\u6709\u573a\u666f\u8d28\u91cf\u63a5\u8fd1\uff09\u3002<\/li>\n
                • \u6587\u4ef6\u5927\u5c0f\u53d6\u51b3\u4e8e\u5185\u5bb9\u590d\u6742\u5ea6\uff08\u52a8\u4f5c\u7247\u6bd4\u52a8\u753b\u7247\u6587\u4ef6\u66f4\u5927\uff09\u3002<\/li>\n
                • \u7f3a\u70b9<\/strong>\uff1a\u65e0\u6cd5\u9884\u77e5\u6700\u7ec8\u6587\u4ef6\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<\/li>\n
                • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u5b58\u50a8\u6216\u9ad8\u8d28\u91cf\u70b9\u64ad\u89c6\u9891\uff08\u5982\u7535\u5f71\u3001\u5b58\u6863\uff09\uff0c\u8ffd\u6c42\u6700\u4f73\u4e3b\u89c2\u8d28\u91cf\u3002<\/li>\n<\/ul>\n
                  \n

                  \u5bf9\u6bd4\u603b\u7ed3<\/h3>\n\n\n\n\n\n\n\n\n
                  \u6a21\u5f0f<\/th>\n\u7801\u7387\u7279\u6027<\/th>\n\u8d28\u91cf\u7a33\u5b9a\u6027<\/th>\n\u6587\u4ef6\u5927\u5c0f<\/th>\n\u5178\u578b\u5e94\u7528\u573a\u666f<\/th>\n<\/tr>\n<\/thead>\n
                  CBR<\/strong><\/td>\n\u6052\u5b9a<\/td>\n\u590d\u6742\u573a\u666f\u53ef\u80fd\u4e0b\u964d<\/td>\n\u53ef\u9884\u6d4b<\/td>\n\u76f4\u64ad\u3001\u5b9e\u65f6\u901a\u4fe1<\/td>\n<\/tr>\n
                  VBR<\/strong><\/td>\n\u52a8\u6001\uff08\u9ad8\u4f4e\u53d8\u5316\uff09<\/td>\n\u9ad8\uff08\u4f18\u5148\u8d28\u91cf\uff09<\/td>\n\u8f83\u5927\uff08\u4e0d\u53ef\u63a7\uff09<\/td>\n\u70b9\u64ad\u89c6\u9891\u3001\u672c\u5730\u5b58\u50a8<\/td>\n<\/tr>\n
                  ABR<\/strong><\/td>\n\u63a5\u8fd1\u76ee\u6807\u5e73\u5747<\/td>\n\u4e2d\u7b49<\/td>\n\u4e2d\u7b49\u53ef\u63a7<\/td>\n\u7f51\u7edc\u89c6\u9891\u53d1\u5e03<\/td>\n<\/tr>\n
                  CRF<\/strong><\/td>\n\u52a8\u6001\uff08\u8d28\u91cf\u4f18\u5148\uff09<\/td>\n\u6781\u9ad8\uff08\u6052\u5b9a\u8d28\u91cf\uff09<\/td>\n\u4e0d\u53ef\u9884\u6d4b<\/td>\n\u9ad8\u8d28\u91cf\u5b58\u6863\u3001\u7535\u5f71\u53d1\u5e03<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                  \n

                  \u5982\u4f55\u9009\u62e9\uff1f<\/strong><\/h3>\n
                    \n
                  • \u8ffd\u6c42\u5e26\u5bbd\u7a33\u5b9a<\/strong> \u2192 CBR<\/li>\n
                  • \u8ffd\u6c42\u6700\u9ad8\u8d28\u91cf<\/strong> \u2192 CRF<\/li>\n
                  • \u5e73\u8861\u8d28\u91cf\u4e0e\u5927\u5c0f<\/strong> \u2192 VBR \u6216 ABR<\/li>\n
                  • \u76f4\u64ad\/\u5b9e\u65f6\u573a\u666f<\/strong> \u2192 CBR \u6216 ABR<\/li>\n
                  • \u70b9\u64ad\/\u5b58\u6863<\/strong> \u2192 VBR \u6216 CRF<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":98,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9],"tags":[22,23],"class_list":["post-96","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-study","tag-encoding","tag-video"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.wenbo828.cn\/wp-content\/uploads\/2025\/05\/bitrate-compression-s-1200x681-1.jpg?fit=1200%2C681&ssl=1","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/posts\/96","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/comments?post=96"}],"version-history":[{"count":1,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/posts\/96\/revisions"}],"predecessor-version":[{"id":97,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/posts\/96\/revisions\/97"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/media\/98"}],"wp:attachment":[{"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/media?parent=96"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/categories?post=96"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wenbo828.cn\/index.php\/wp-json\/wp\/v2\/tags?post=96"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}