{"id":16569,"date":"2020-12-15T08:45:57","date_gmt":"2020-12-15T16:45:57","guid":{"rendered":"https:\/\/cisco2393.wpengine.com\/uncategorized\/webex-%e6%96%b0%e5%a2%9e-av1-%e8%a7%86%e9%a2%91%e7%bc%96%e8%a7%a3%e7%a0%81%e5%99%a8%ef%bc%81\/"},"modified":"2021-10-31T06:30:58","modified_gmt":"2021-10-31T13:30:58","slug":"webex-%e6%96%b0%e5%a2%9e-av1-%e8%a7%86%e9%a2%91%e7%bc%96%e8%a7%a3%e7%a0%81%e5%99%a8%ef%bc%81","status":"publish","type":"post","link":"https:\/\/blog.webex.com\/zh-hans\/engineering-zh-hans\/webex-%e6%96%b0%e5%a2%9e-av1-%e8%a7%86%e9%a2%91%e7%bc%96%e8%a7%a3%e7%a0%81%e5%99%a8%ef%bc%81\/","title":{"rendered":"Webex \u65b0\u589e AV1 \u89c6\u9891\u7f16\u89e3\u7801\u5668\uff01"},"content":{"rendered":"

Thomas Davies \u548c Sijia Chen – Webex \u5c06\u4e8e\u660e\u5e74\u521d\u63a8\u51fa AV1 \u89c6\u9891\u7f16\u89e3\u7801\u5668\u3002 \u8fd9\u5c06\u4f7f\u6211\u4eec\u7684\u5a92\u4f53\u8d28\u91cf\u66f4\u4e0a\u4e00\u5c42\u697c\u3002 \u4f5c\u4e3a AOM \u7684\u521b\u59cb\u6210\u5458\uff0cCisco \u5f88\u81ea\u8c6a\u80fd\u591f\u5c06\u8fd9\u79cd\u5148\u8fdb\u7684\u89c6\u9891\u6280\u672f\u5f15\u5165\u5b9e\u65f6\u901a\u8baf\u5e02\u573a<\/p>\n

\u4e00\u7779\u4e3a\u5feb\uff01 \u6211\u4eec\u5df2\u5f00\u59cb\u5728 Webex \u4e0a\u63a8\u51fa\u5148\u8fdb\u7684 AV1 \u89c6\u9891\u7f16\u89e3\u7801\u5668\uff0c\u4ee5\u5c06\u89c6\u9891\u8d28\u91cf\u63d0\u5347\u5230\u4e00\u4e2a\u65b0\u6c34\u51c6\uff0c\u5e76\u53d6\u4ee3\u65e7\u7684 H.264 \u6807\u51c6\u3002<\/p>\n

\u7ee7\u6211\u4eec\u53bb\u5e74\u7684\u6210\u529f\u6f14\u793a<\/a>\uff08\u5728 Big Apple \u5927\u4f1a\u4e0a\uff09\u4e4b\u540e\uff0c\u4ece\u660e\u5e74\u521d\u5f00\u59cb\uff0c\u7528\u6237\u5728\u4f7f\u7528\u684c\u9762\u8bbe\u5907\u5171\u4eab\u9ad8\u901f\u8fd0\u52a8\u5185\u5bb9\u65f6\uff0cWebex \u4e0a\u5c06\u542f\u7528 AV1\u3002 \u8fd9\u610f\u5473\u7740\uff0c\u5f53\u60a8\u5728\u4f1a\u8bae\u4e2d\u5171\u4eab\u6700\u5177\u6311\u6218\u6027\u7684\u5185\u5bb9\u7c7b\u578b\u65f6\uff08\u5982\u4f53\u80b2\u89c6\u9891\u3001\u5546\u4e1a\u5e7f\u544a\u6216\u4efb\u4f55\u7c7b\u578b\u7684\u9ad8\u901f\u8fd0\u52a8\u56fe\u5f62\uff09\uff0c\u5168\u65b0\u7684 AV1 \u7f16\u89e3\u7801\u5668\u53ef\u52a9\u60a8\u4fdd\u969c\u6700\u4f73\u7684\u5171\u4eab\u8d28\u91cf\u3002<\/p>\n

AV1 \u662f\u4ec0\u4e48\uff1f<\/h2>\n

AV1 \u662f\u4e0b\u4e00\u4ee3\u89c6\u9891\u7f16\u89e3\u7801\u5668\uff0c\u80fd\u591f\u5927\u5927\u63d0\u9ad8\u89c6\u9891\u8d28\u91cf\u3002 \u5b83\u662f\u7531\u5f00\u653e\u5a92\u4f53\u8054\u76df<\/a>\u8bbe\u8ba1\u7684\u4e00\u9879\u514d\u7248\u7a0e\u6280\u672f\uff0c\u907f\u514d\u4e86\u4e13\u5229\u6218\uff0c\u6b64\u79cd\u4e13\u5229\u6218\u8fd1 10 \u5e74\u6765\u963b\u788d\u4e86\u5176\u4ed6\u5148\u8fdb\u89c6\u9891\u7f16\u89e3\u7801\u5668\u7684\u90e8\u7f72\u3002<\/p>\n

Cisco \u4e3a\u81ea\u5df1\u4f5c\u4e3a AOM \u7684\u521b\u59cb\u6210\u5458\u611f\u5230\u81ea\u8c6a\u3002 \u60a8\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b<\/a>\u535a\u5ba2<\/a>\u4e86\u89e3\u66f4\u591a\u5173\u4e8e AOM \u548c AV1 \u662f\u5982\u4f55\u4ea7\u751f\u4ee5\u53ca Cisco \u5982\u4f55\u63a8\u52a8 AV1 \u53d1\u5c55\u7684\u4fe1\u606f\u3002<\/p>\n

\u8981\u5728 Webex \u4e2d\u4f7f\u7528 AV1\uff0c\u6211\u9700\u8981\u4ec0\u4e48\uff1f<\/h2>\n

\u5f53\u5171\u4eab\u5c4f\u5e55\u6216\u5e94\u7528\u7a0b\u5e8f\u65f6\u9009\u62e9\u201c\u4f18\u5316\u8fd0\u52a8\u548c\u89c6\u9891\u201d\uff0c\u4e14\u6240\u4f7f\u7528\u8bbe\u5907\u81f3\u5c11\u914d\u7f6e\u56db\u6838\u5904\u7406\u5668\uff0c\u5373\u53ef\u652f\u6301\u4f20\u8f93 AV1\u3002 \u4efb\u4f55\u81f3\u5c11\u914d\u7f6e\u53cc\u6838\u5904\u7406\u5668\u7684\u8bbe\u5907\u5747\u652f\u6301\u63a5\u6536 AV1\u3002 \u5982\u679c\u6240\u6709\u4e0e\u4f1a\u8005\u7684\u8bbe\u5907\u90fd\u652f\u6301 AV1\uff0c\u5206\u4eab\u6b64\u7c7b\u5c4f\u5e55\u5185\u5bb9\u65f6\u5c06\u81ea\u52a8\u4f7f\u7528 AV1\uff0c\u5426\u5219\u5c06\u81ea\u52a8\u6062\u590d\u81f3 H.264\u3002<\/p>\n

\u6211\u4eec\u5c06\u5982\u4f55\u63a8\u51fa AV1<\/h2>\n

\u91c7\u7528\u5168\u65b0\u7684\u89c6\u9891\u7f16\u89e3\u7801\u5668\u4f1a\u5bf9\u6211\u4eec\u201c\u534f\u4f5c\u201d\u4ea7\u54c1\u7ec4\u5408\u7684\u65b9\u65b9\u9762\u9762\u4ea7\u751f\u5f71\u54cd\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u5faa\u5e8f\u6e10\u8fdb\u3002<\/p>\n

\u5728\u672a\u6765\u7684\u7248\u672c\u4e2d\uff0c\u6211\u4eec\u5c06\u7cfb\u7edf\u6269\u5927 AV1 \u7684\u90e8\u7f72\u8303\u56f4\u3002 \u7d27\u63a5\u7740\u4e0b\u4e00\u6b65\u662f\u9488\u5bf9\u5176\u4ed6\u684c\u9762\u5171\u4eab\u6a21\u5f0f\u652f\u6301 AV1\uff1a\u6216\u8005\u9488\u5bf9\u6587\u672c\u548c\u56fe\u50cf\u8fdb\u884c\u4f18\u5316\uff0c\u6216\u8005\u91c7\u7528\u81ea\u52a8\u4f18\u5316\u3002 AV1 \u4e5f\u9002\u7528\u4e8e\u8fd9\u4e9b\u6a21\u5f0f\uff0c\u4f46\u6211\u4eec\u5c06\u91c7\u53d6\u8c28\u614e\u7684\u6001\u5ea6\u5faa\u5e8f\u6e10\u8fdb\uff0c\u4ee5\u786e\u4fdd\u6bcf\u4e00\u6b65\u90fd\u80fd\u7ed9\u7528\u6237\u5e26\u6765\u4f18\u8d28\u4f53\u9a8c\u3002<\/p>\n

Webex \u91c7\u7528\u57fa\u672c\u7684\u4ea4\u6362\u67b6\u6784\uff0c\u6bcf\u540d\u4e0e\u4f1a\u8005\u7684\u89c6\u9891\u5728\u5176\u8bbe\u5907\u4e0a\u4ee5\u4e0d\u540c\u7684\u8d28\u91cf\u8fdb\u884c\u7f16\u7801\uff0c\u5e76\u901a\u8fc7\u670d\u52a1\u5668\u53d1\u9001\u7ed9\u5176\u4ed6\u4e0e\u4f1a\u8005\u3002 \u5728\u5f00\u59cb\u9636\u6bb5\uff0c\u5982\u679c\u90e8\u5206\u4e0e\u4f1a\u8005\u65e0\u6cd5\u652f\u6301 AV1\uff0c\u6211\u4eec\u5c06\u81ea\u52a8\u9000\u56de\u5230 H.264\u3002 \u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u6211\u4eec\u8fd8\u5c06\u901a\u8fc7\u5728 AV1 \u548c H.264 \u4e4b\u95f4\u4e3a\u53c2\u4e0e\u8005\u5e94\u7528\u7279\u6b8a\u8f6c\u7801\u6765\u6d88\u9664\u9650\u5236\u3002 \u4f8b\u5982\uff0c\u65e0\u9700\u9000\u56de\u5230 H.264 \u5373\u53ef\u5f55\u5236 AV1 \u4f1a\u8bae\u3002<\/p>\n

\u79fb\u52a8\u8bbe\u5907\u4e5f\u5c06\u8fc5\u901f\u83b7\u5f97 AV1 \u786c\u4ef6\u652f\u6301\uff0c\u4e4b\u540e AV1 \u4e5f\u5c06\u63a8\u5e7f\u5230\u79fb\u52a8\u7aef\u3002 \u867d\u7136\u6211\u4eec\u7684\u89e3\u51b3\u65b9\u6848\u662f\u57fa\u4e8e\u8f6f\u4ef6\uff0c\u4e14\u5728 ARM \u548c x86 \u5904\u7406\u5668\u4e0a\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u4f46\u6700\u597d\u5728\u79fb\u52a8\u7aef\u5c3d\u53ef\u80fd\u4f7f\u7528\u786c\u4ef6\u7f16\u89e3\u7801\u5668\uff0c\u4ee5\u5ef6\u957f\u7535\u6c60\u5bff\u547d\u3002<\/p>\n

\u968f\u7740\u4f18\u5316\u8fdb\u7a0b\u7684\u4e0d\u65ad\u63a8\u8fdb\uff0c\u6211\u4eec\u5c06\u51cf\u5c11\u5bf9 AV1 \u8bbe\u7f6e\u7684\u6838\u5fc3\u6570\u91cf\u9650\u5236\u3002 \u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u6211\u4eec\u7684 AV1 \u89e3\u51b3\u65b9\u6848\u6240\u4f7f\u7528\u7684 CPU \u7a7a\u95f4\u4ec5\u6bd4 H.264 \u9ad8\u4e00\u70b9\u3002 \u4f46\u8bbe\u5907\u7684\u79cd\u7c7b\u6709\u5f88\u591a\uff0c\u56e0\u6b64\u6211\u4eec\u4f1a\u5faa\u5e8f\u6e10\u8fdb\uff0c\u4ee5\u4fdd\u969c\u826f\u597d\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n

Cisco \u7684 AV1 \u89e3\u51b3\u65b9\u6848<\/h2>\n

\u6211\u4eec\u7684\u89e3\u51b3\u65b9\u6848\u4e4b\u6240\u4ee5\u5f3a\u5927\uff0c\u5f97\u76ca\u4e8e\u4e00\u4e2a\u8d85\u7ea7\u4f18\u5316\u7684\u8f6f\u4ef6\u7f16\u7801\u5668\u3002 \u5728\u8bbe\u8ba1\u65f6\u6211\u4eec\u6709\u4e24\u5927\u76ee\u6807\uff1a \u63d0\u4f9b\u6bd4 H.264 \u66f4\u663e\u8457\u7684\u4f18\u52bf\uff0c\u5e76\u4ee5\u5c3d\u53ef\u80fd\u5c0f\u7684\u989d\u5916\u8ba1\u7b97\u6210\u672c\u505a\u5230\u8fd9\u4e00\u70b9\u3002<\/p>\n

\u8fd9\u4e00\u8981\u6c42\u76f8\u5f53\u9ad8\u3002 \u5728\u6d41\u5a92\u4f53\u7b49\u975e\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4e3a\u4e86\u5145\u5206\u5229\u7528\u65b0\u6807\u51c6\u7684\u4f18\u52bf\uff0c\u53ef\u4ee5\u5c06\u7f16\u7801\u590d\u6742\u5ea6\u63d0\u9ad8 2 \u500d\u30014 \u500d\u751a\u81f3 10 \u500d\u3002 \u5728\u5b9e\u65f6\u901a\u4fe1\u4e2d\uff0c\u60c5\u51b5\u5e76\u975e\u5982\u6b64\u3002 \u6211\u4eec\u7684\u5ba2\u6237\u6240\u4f7f\u7528\u7684\u8bbe\u5907\u867d\u7136\u529f\u80fd\u8d8a\u6765\u8d8a\u5f3a\u5927\uff0c\u4f46\u6240\u5904\u7406\u7684\u4efb\u52a1\u4e5f\u8d8a\u6765\u8d8a\u591a\u3002<\/p>\n

Cisco AV1 \u7f16\u7801\u5668\u5177\u6709\u7075\u6d3b\u6027\uff0c\u4e13\u4e3a\u5728\u4e0e H.264 \u76f8\u4f3c\u7684 CPU \u5360\u7528\u7a7a\u95f4\u5185\u8fd0\u884c\u800c\u8bbe\u8ba1\uff0c\u5728\u9ad8\u8d28\u91cf\u8981\u6c42\u4e0b\uff0c\u53ef\u4ee5\u66f4\u4f4e\u7684\u6bd4\u7279\u7387\u63d0\u4f9b\u66f4\u5927\u7684\u8d28\u91cf\u6539\u8fdb\u3002<\/p>\n

\u8981\u5b9e\u73b0\u4f1a\u8bae\u8fde\u63a5\uff0c\u6211\u4eec\u7684\u670d\u52a1\u5668\u67b6\u6784\u5fc5\u987b\u534f\u8c03\u591a\u4e2a\u7f16\u89e3\u7801\u5668\u3001\u5206\u8fa8\u7387\u548c\u6bd4\u7279\u7387\uff0c\u4ee5\u9002\u5e94\u6240\u6709\u53c2\u4e0e\u8005\uff0c\u5e76\u5bf9\u4e0d\u65ad\u53d8\u5316\u7684\u7f51\u7edc\u6761\u4ef6\u4f5c\u51fa\u5f39\u6027\u54cd\u5e94\u3002<\/p>\n

\u6211\u4eec\u7684\u8f6f\u4ef6\u8fd8\u5229\u7528\u4e86 VideoLAN \u6781\u5feb\u7684 dav1d \u5f00\u6e90 AV1 \u89e3\u7801\u5668<\/a>\uff0c\u5bf9\u52a0\u5feb AV1 \u7684\u90e8\u7f72\u4f5c\u7528\u663e\u8457\u3002<\/p>\n

\u5c55\u671b\uff1a \u5a92\u4f53\u8d28\u91cf\u548c Cisco<\/h2>\n

\u4eca\u5e74\uff0c\u534f\u4f5c\u6280\u672f\u7684\u5e94\u7528\u6025\u5267\u589e\u52a0\uff0c\u4eba\u4eec\u5bf9\u6b64\u79cd\u6280\u672f\u7684\u4f9d\u8d56\u7a0b\u5ea6\u524d\u6240\u672a\u6709\u3002 \u5a92\u4f53\u8d28\u91cf\u662f\u6539\u5584\u6211\u4eec\u4f53\u9a8c\u7684\u6838\u5fc3\uff0c\u5bf9\u4e8e\u5728\u5f53\u524d\u548c\u4eca\u540e\u7684\u56f0\u96be\u65f6\u523b\u52a0\u5f3a\u6211\u4eec\u5728\u865a\u62df\u62df\u751f\u6d3b\u4e2d\u7684\u8054\u7cfb\u81f3\u5173\u91cd\u8981\u3002 AV1 \u4ec5\u4ec5\u662f\u4e00\u4e2a\u591a\u7ba1\u9f50\u4e0b\u6218\u7565\u7684\u7ec4\u6210\u90e8\u5206\uff0c\u8be5\u6218\u7565\u65e8\u5728\u63d0\u4f9b\u66f4\u9ad8\u8d28\u91cf\u7684\u5b9e\u65f6\u4f1a\u8bae\u4f53\u9a8c\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u5c31\u662f\u8981\u6bd4\u73b0\u5728\u7684\u4f53\u9a8c\u597d 10 \u500d<\/a>\u3002 \u6211\u4eec\u7684\u76ee\u6807\u662f\u8ba9 AV1 \u6210\u4e3a\u65b0\u5e38\u6001\uff0c\u540c\u65f6\u4e5f\u8ba9\u5176\u7f16\u7801\u7684\u5a92\u4f53\u53d8\u5f97\u66f4\u52a0\u4e30\u5bcc\u3001\u66f4\u52a0\u7ec6\u81f4\u3001\u66f4\u6709\u6d3b\u529b\u3002<\/p>\n

\u5173\u4e8e\u4f5c\u8005<\/strong><\/p>\n

Thomas Davies<\/a> \u662f\u534f\u4f5c\u6280\u672f\u7ec4\u7684\u9996\u5e2d\u5de5\u7a0b\u5e08\u3002 \u4ed6\u66fe\u6d89\u8db3\u536b\u661f\u7f51\u7edc\u3001\u5c04\u9891\u901a\u4fe1\u548c\u5e7f\u64ad\u9886\u57df\uff0c\u4f46\u804c\u4e1a\u751f\u6daf\u7684\u5927\u90e8\u5206\u65f6\u95f4\u90fd\u4ece\u4e8b\u89c6\u9891\u548c\u7f16\u89e3\u7801\u5668\u76f8\u5173\u5de5\u4f5c\u3002 \u4ed6\u5728 Cisco \u5de5\u4f5c\u4e86 8 \u5e74\uff0c\u81f4\u529b\u4e8e\u6253\u9020\u4e0b\u4e00\u4ee3\u534f\u4f5c\u4f53\u9a8c\u3002<\/p>\n

Sijia Chen<\/a> \u662f\u534f\u4f5c\u6280\u672f\u7ec4\u7684\u6280\u672f\u8d1f\u8d23\u4eba\u3002 \u5979\u4e3b\u8981\u4ece\u4e8b\u89c6\u9891\u529f\u80fd\u76f8\u5173\u5de5\u4f5c\uff0c\u5305\u62ec\u89c6\u9891\u7f16\u89e3\u7801\u7b97\u6cd5\u8bbe\u8ba1\u548c\u5b9e\u73b0\uff0c\u4ee5\u53ca\u89c6\u9891\u8d28\u91cf\u8bc4\u4f30\u548c\u6307\u6807\u3002 \u5979\u5728 Cisco \u7684 Webex Media Engine \u5de5\u4f5c\u4e86 12 \u5e74\u591a\uff0cWebex Media Engine \u4e3b\u8981\u4e3a\u591a\u6761 Webex \u751f\u4ea7\u7ebf\u670d\u52a1\u3002<\/p>\n


\n \u5355\u51fb\u6b64\u5904<\/a>\u4e86\u89e3\u66f4\u591a Webex \u4ea7\u54c1\uff0c\u5e76\u6ce8\u518c\u4e00\u4e2a\u514d\u8d39\u5e10\u6237\u3002\u00a0<\/span><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

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