{"id":15818,"date":"2020-12-15T08:45:57","date_gmt":"2020-12-15T16:45:57","guid":{"rendered":"https:\/\/cisco2393.wpengine.com\/uncategorized\/webex-%e5%8d%b3%e5%b0%87%e5%bc%95%e5%85%a5-av1-%e8%a6%96%e8%a8%8a%e7%b7%a8%e8%a7%a3%e7%a2%bc%e5%99%a8%ef%bc%81\/"},"modified":"2021-10-31T06:30:54","modified_gmt":"2021-10-31T13:30:54","slug":"webex-%e5%8d%b3%e5%b0%87%e5%bc%95%e5%85%a5-av1-%e8%a6%96%e8%a8%8a%e7%b7%a8%e8%a7%a3%e7%a2%bc%e5%99%a8%ef%bc%81","status":"publish","type":"post","link":"https:\/\/blog.webex.com\/zh-hant\/engineering-zh-hant\/webex-%e5%8d%b3%e5%b0%87%e5%bc%95%e5%85%a5-av1-%e8%a6%96%e8%a8%8a%e7%b7%a8%e8%a7%a3%e7%a2%bc%e5%99%a8%ef%bc%81\/","title":{"rendered":"Webex \u5373\u5c07\u5f15\u5165 AV1 \u8996\u8a0a\u7de8\u89e3\u78bc\u5668\uff01"},"content":{"rendered":"

Thomas Davies \u8207 Sijia Chen – Webex \u5df2\u8457\u624b\u63a8\u52d5\u5728\u660e\u5e74\u521d\u5168\u9762\u6b63\u5f0f\u555f\u7528 AV1 \u8996\u8a0a\u7de8\u89e3\u78bc\u5668\u3002 \u6211\u5011\u7684\u5a92\u9ad4\u54c1\u8cea\u5c07\u56e0\u6b64\u63d0\u5347\u81f3\u66f4\u9ad8\u7684\u5c64\u6b21\u3002 \u8eab\u70ba AOM \u7684\u5275\u59cb\u6210\u54e1\u4e4b\u4e00\uff0cCisco \u5c0d\u65bc\u80fd\u5c07\u9019\u9805\u5148\u9032\u7684\u8996\u8a0a\u6280\u8853\u5f15\u9032\u5373\u6642\u901a\u4fe1\u5e02\u5834\u6df1\u611f\u81ea\u8c6a\u3002<\/p>\n

\u73fe\u5728\u912d\u91cd\u70ba\u60a8\u5448\u73fe\uff01 \u6211\u5011\u5df2\u7d93\u8457\u624b\u958b\u59cb\u63a8\u52d5\u5728 Webex \u4e2d\u5168\u9762\u6b63\u5f0f\u555f\u7528\u5148\u9032\u7684 AV1 \u8996\u8a0a\u7de8\u89e3\u78bc\u5668\uff0c\u5728\u63a8\u52d5\u904e\u7a0b\u4e2d\u5c07\u8996\u8a0a\u54c1\u8cea\u63d0\u5347\u81f3\u66f4\u9ad8\u7684\u5c64\u6b21\uff0c\u4e26\u53d6\u4ee3\u904e\u6642\u7684 H.264 \u6a19\u6e96\u3002<\/p>\n

\u7e7c\u6211\u5011\u53bb\u5e74\u5927\u7372\u6210\u529f\u7684\u793a\u7bc4<\/a>\uff08\u5728 Big Apple \u6703\u8b70\u4e0a\uff09\u4e4b\u5f8c\uff0c\u5f9e\u4eca\u5e74\u5e74\u521d\u958b\u59cb\uff0c\u5728\u684c\u4e0a\u578b\u88dd\u7f6e\u4e0a\u5206\u4eab\u9ad8\u901f\u52d5\u614b\u5f71\u50cf\u6642\uff0cWebex \u5c07\u6703\u555f\u7528 AV1\u3002 \u4e5f\u5c31\u662f\u8aaa\uff0c\u5728\u60a8\u7684\u6703\u8b70\u4e2d\u5206\u4eab\u904b\u52d5\u8996\u8a0a\u3001\u5ee3\u544a\u6216\u4efb\u4f55\u9ad8\u901f\u52d5\u614b\u5f71\u50cf\u4e4b\u985e\u7684\u9ad8\u96e3\u5ea6\u5167\u5bb9\u6642\uff0c\u5c07\u6709\u5168\u65b0\u7684 AV1 \u7de8\u89e3\u78bc\u5668\u5354\u52a9\u60a8\u5206\u4eab\u6700\u9ad8\u54c1\u8cea\u7684\u5167\u5bb9\u3002<\/p>\n

AV1 \u662f\u4ec0\u9ebc\uff1f<\/h2>\n

AV1 \u662f\u65b0\u4e00\u4ee3\u7684\u8996\u8a0a\u7de8\u89e3\u78bc\u5668\uff0c\u53ef\u4ee5\u5927\u5e45\u63d0\u5347\u8996\u8a0a\u54c1\u8cea\u3002 \u9019\u662f\u7531\u958b\u653e\u5a92\u9ad4\u806f\u76df<\/a>\u8a2d\u8a08\u7684\u514d\u6b0a\u5229\u91d1\u6280\u8853\uff0c\u4ee5\u514d\u91cd\u8e48\u904e\u53bb\u8fd1\u5341\u5e74\u4f86\uff0c\u56e0\u70ba\u5c08\u5229\u7af6\u722d\u5c0e\u81f4\u5176\u4ed6\u5148\u9032\u8996\u8a0a\u7de8\u89e3\u78bc\u5668\u767c\u5c55\u53d7\u963b\u7684\u8986\u8f4d\u3002<\/p>\n

Cisco \u4ee5\u8eab\u70ba AOM \u5275\u59cb\u6210\u54e1\u70ba\u69ae\u3002 \u60a8\u53ef\u4ee5\u9ede\u95b1\u9019\u4e9b<\/a>\u90e8\u843d\u683c<\/a>\u6587\u7ae0\uff0c\u6df1\u5165\u77ad\u89e3 AOM \u548c AV1 \u7684\u767c\u5c55\u6b77\u7a0b\uff0c\u4ee5\u53ca Cisco \u5982\u4f55\u5354\u52a9\u63a8\u52d5\u7814\u767c AV1\u3002<\/p>\n

\u5728 Webex \u4e2d\u4f7f\u7528 AV1\uff0c\u6211\u9700\u8981\u505a\u4ec0\u9ebc\u6e96\u5099\uff1f<\/h2>\n

\u5982\u679c\u5728\u5171\u7528\u87a2\u5e55\u6216\u61c9\u7528\u7a0b\u5f0f\u6642\u6709\u9078\u53d6\u300c\u52d5\u614b\u548c\u8996\u8a0a\u6700\u4f73\u5316\u8655\u7406\u300d\uff0c\u4e14\u60a8\u4f7f\u7528\u7684\u96fb\u8166\u81f3\u5c11\u6709\u914d\u5099\u56db\u6838\u5fc3\u8655\u7406\u5668\uff0c\u5373\u6703\u652f\u63f4\u50b3\u9001 AV1\u3002 \u4efb\u4f55\u81f3\u5c11\u914d\u5099\u96d9\u6838\u5fc3\u8655\u7406\u5668\u7684\u96fb\u8166\u7686\u652f\u63f4\u63a5\u6536 AV1\u3002 \u82e5\u6703\u8b70\u4e2d\u7684\u6240\u6709\u53c3\u8207\u8005\u5747\u53ef\u652f\u63f4 AV1\uff0cWebex \u6703\u81ea\u52d5\u4f7f\u7528 AV1 \u4f86\u5206\u4eab\u9019\u985e\u87a2\u5e55\u5167\u5bb9\uff0c\u5426\u5247\u6703\u81ea\u52d5\u6062\u5fa9\u4f7f\u7528 H.264\u3002<\/p>\n

\u6211\u5011\u5982\u4f55\u5168\u9762\u555f\u7528 AV1<\/h2>\n

\u63a1\u7528\u5168\u65b0\u7684\u8996\u8a0a\u7de8\u89e3\u78bc\u5668\u6703\u5c0d\u6211\u5011\u7684\u5354\u4f5c\u7522\u54c1\u7d44\u5408\u9020\u6210\u5168\u9762\u6027\u7684\u5f71\u97ff\uff0c\u56e0\u6b64\u6211\u5011\u6703\u5faa\u5e8f\u6f38\u9032\u3002<\/p>\n

\u5728\u672a\u4f86\u63a8\u51fa\u7684 Webex \u7248\u672c\u4e2d\uff0c\u6211\u5011\u6703\u7cfb\u7d71\u5730\u9010\u6b65\u64f4\u5c55 AV1 \u90e8\u7f72\u3002 \u6211\u5011\u63a5\u4e0b\u4f86\u6703\u5c0d\u5176\u4ed6\u684c\u9762\u5171\u7528\u6a21\u5f0f\u652f\u63f4 AV1\uff0c\u53ef\u80fd\u662f\u6587\u5b57\u548c\u5716\u7247\u512a\u5316\uff0c\u6216\u662f\u81ea\u52d5\u512a\u5316\u8655\u7406\u3002 AV1 \u5c0d\u9019\u4e9b\u6a21\u5f0f\u7684\u652f\u63f4\u6548\u679c\u4e5f\u5f88\u597d\uff0c\u4f46\u6211\u5011\u9084\u662f\u6703\u5be9\u614e\u5730\u9032\u884c\u6f38\u9032\u5f0f\u66f4\u52d5\uff0c\u78ba\u4fdd\u6bcf\u500b\u6b65\u9a5f\u90fd\u80fd\u6709\u5b8c\u7f8e\u7684\u4f7f\u7528\u8005\u9ad4\u9a57\u3002<\/p>\n

Webex \u63a1\u7528\u6839\u672c\u6027\u7684\u8f49\u63db\u67b6\u69cb\uff0c\u6703\u8b70\u4e2d\u6bcf\u4e00\u540d\u53c3\u8207\u8005\u7684\u8996\u8a0a\u6703\u5728\u5176\u672c\u8eab\u7684\u96fb\u8166\u4e0a\u9032\u884c\u4e0d\u540c\u54c1\u8cea\u7684\u7de8\u78bc\u5f8c\uff0c\u518d\u900f\u904e\u4f3a\u670d\u5668\u50b3\u9001\u7d66\u5176\u4ed6\u6703\u8b70\u53c3\u8207\u8005\u3002 \u4e00\u958b\u59cb\uff0c\u5982\u679c\u5176\u4e2d\u90e8\u4efd\u53c3\u8207\u8005\u7121\u6cd5\u652f\u63f4 AV1\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u6062\u5fa9\u4f7f\u7528\u3000H.264\u3002 \u904e\u4e00\u6bb5\u6642\u9593\u4e4b\u5f8c\uff0c\u6211\u5011\u6703\u70ba\u9019\u4e9b\u53c3\u8207\u8005\u63d0\u4f9b AV1 \u548c H.264 \u7684\u81e8\u6642\u8f49\u78bc\u529f\u80fd\uff0c\u4ee5\u89e3\u9664\u9019\u4e9b\u9650\u5236\u3002 \u8209\u4f8b\u4f86\u8aaa\uff0c\u9019\u4e5f\u53ef\u4ee5\u8b93\u60a8\u76f4\u63a5\u9304\u88fd AV1 \u6703\u8b70\uff0c\u7121\u9700\u518d\u6062\u5fa9\u70ba H.264\u3002<\/p>\n

\u884c\u52d5\u88dd\u7f6e\u5f88\u5feb\u5730\u4e5f\u6703\u53d6\u5f97\u786c\u9ad4 AV1 \u652f\u63f4\uff0c\u4e4b\u5f8c\u4fbf\u53ef\u5728\u884c\u52d5\u88dd\u7f6e\u4e0a\u6b63\u5f0f\u555f\u7528 AV1\u3002 \u5118\u7ba1\u6211\u5011\u662f\u8edf\u9ad4\u578b\u89e3\u6c7a\u65b9\u6848\uff0c\u5728 ARM \u548c x86 \u8655\u7406\u5668\u4e0a\u7684\u4f5c\u696d\u901f\u5ea6\u4e5f\u975e\u5e38\u5feb\uff0c\u4f46\u5728\u884c\u52d5\u88dd\u7f6e\u4e0a\u6700\u597d\u9084\u662f\u8981\u76e1\u53ef\u80fd\u591a\u5229\u7528\u786c\u9ad4\u7de8\u89e3\u78bc\u5668\uff0c\u4ee5\u4fdd\u6301\u6700\u4f73\u7684\u96fb\u6c60\u58fd\u547d\u3002<\/p>\n

\u6211\u5011\u4e5f\u6703\u8a2d\u6cd5\u5728\u512a\u5316\u7684\u904e\u7a0b\u4e2d\uff0c\u964d\u4f4e AV1 \u7684\u6838\u5fc3\u6578\u9650\u5236\u3002 \u5176\u5be6\u6700\u53b2\u5bb3\u7684\u662f\uff0c\u6211\u5011\u7684 AV1 \u89e3\u6c7a\u65b9\u6848\u6240\u8017\u7528\u7684 CPU \u8cc7\u6e90\u53ea\u6bd4 H.264 \u7565\u591a\u4e00\u4e9b\u3002 \u7136\u800c\u5e02\u9762\u4e0a\u7684\u6a5f\u5668\u591a\u5982\u7e41\u661f\uff0c\u6211\u5011\u9084\u662f\u6309\u90e8\u5c31\u73ed\u5730\u9032\u884c\u66f4\u52d5\uff0c\u4ee5\u7dad\u8b77\u4f7f\u7528\u8005\u9ad4\u9a57\u3002<\/p>\n

Cisco \u7684 AV1 \u89e3\u6c7a\u65b9\u6848<\/h2>\n

\u6211\u5011\u7684\u89e3\u6c7a\u65b9\u6848\u4e4b\u6240\u4ee5\u5f37\u5927\uff0c\u662f\u56e0\u70ba\u64c1\u6709\u4e00\u500b\u8d85\u9ad8\u6027\u80fd\u7684\u8edf\u9ad4\u7de8\u78bc\u5668\u3002 \u8a2d\u8a08\u9019\u500b\u7de8\u78bc\u5668\u7684\u76ee\u6a19\u6709\u5169\u500b\uff1a \u63d0\u4f9b\u9060\u52dd\u65bc H.264 \u7684\u512a\u9ede\uff0c\u4e26\u76e1\u53ef\u80fd\u8017\u7528\u6700\u5c11\u7684\u984d\u5916\u904b\u7b97\u8cc7\u6e90\u3002<\/p>\n

\u9019\u662f\u4e00\u9805\u9817\u70ba\u8271\u9245\u7684\u4efb\u52d9\u3002 \u5728\u50cf\u662f\u4e32\u6d41\u8655\u7406\u9019\u7a2e\u975e\u5373\u6642\u61c9\u7528\u7a0b\u5f0f\u4e2d\uff0c\u70ba\u6c42\u7372\u5f97\u65b0\u6a19\u6e96\u7684\u6700\u5927\u597d\u8655\uff0c\u628a\u7de8\u78bc\u7684\u8907\u96dc\u5ea6\u63d0\u9ad8 2 \u500d\u30014 \u500d\u6216\u751a\u81f3 10 \u500d\u4e5f\u7121\u50b7\u5927\u96c5\u3002 \u4f46\u5c0d\u65bc\u5373\u6642\u901a\u8a0a\u537b\u4e0d\u662f\u5982\u6b64\uff1a \u96d6\u7136\u5ba2\u6236\u4f7f\u7528\u7684\u6a5f\u5668\u529f\u80fd\u8d8a\u4f86\u8d8a\u597d\uff0c\u4f46\u8655\u7406\u7684\u5de5\u4f5c\u4e5f\u65e5\u8da8\u8907\u96dc\u5316\u3002<\/p>\n

Cisco AV1 \u7de8\u78bc\u5668\u5177\u6709\u9748\u6d3b\u7279\u6027\uff0c\u5b83\u80fd\u5920\u5728\u8207\u3000H.264 \u76f8\u4eff\u7684 CPU \u4f54\u7528\u7387\u5167\u904b\u4f5c\uff0c\u540c\u6642\u53ef\u5728\u5f37\u8abf\u54c1\u8cea\u7684\u6642\u5019\uff0c\u4ee5\u8f03\u4f4e\u7684\u4f4d\u5143\u901f\u7387\u5c55\u73fe\u51fa\u66f4\u5353\u8d8a\u7684\u54c1\u8cea\u6539\u5584\u6548\u679c\u3002<\/p>\n

\u6211\u5011\u7684\u4f3a\u670d\u5668\u5728\u9023\u63a5\u6703\u8b70\u6642\uff0c\u5fc5\u9808\u5354\u8abf\u591a\u7a2e\u4e0d\u540c\u7684\u89e3\u7de8\u78bc\u5668\u3001\u89e3\u6790\u5ea6\u548c\u4f4d\u5143\u901f\u7387\u4ee5\u5207\u5408\u6240\u6709\u53c3\u8207\u8005\u7684\u9700\u6c42\uff0c\u4e26\u4e14\u8981\u80fd\u9748\u6d3b\u56de\u61c9\u7db2\u8def\u9023\u7dda\u54c1\u8cea\u7684\u8b8a\u52d5\u3002<\/p>\n

\u6211\u5011\u7684\u8edf\u9ad4\u9084\u904b\u7528\u4e86 VideoLAN \u7684\u8d85\u9ad8\u901f dav1d \u958b\u653e\u539f\u59cb\u78bc AV1 \u89e3\u78bc\u5668<\/a>\uff0c\u9019\u9ebc\u505a\u6210\u679c\u4e0d\u51e1\uff0c\u56e0\u70ba\u5b83\u5c0d\u65bc\u52a0\u901f AV1 \u90e8\u7f72\u6709\u6975\u5927\u7684\u52a9\u76ca\u3002<\/p>\n

\u672a\u4f86\uff1a \u5a92\u9ad4\u54c1\u8cea\u8207 Cisco<\/h2>\n

\u5354\u4f5c\u6280\u8853\u7684\u904b\u7528\u5728\u4eca\u5e74\u6025\u907d\u4e0a\u5347\uff0c\u4eba\u5011\u5c0d\u5176\u501a\u91cd\u7684\u7a0b\u5ea6\u524d\u6240\u672a\u898b\u3002 \u5a92\u9ad4\u54c1\u8cea\u662f\u6539\u5584\u6211\u5011\u7684\u9ad4\u9a57\u7684\u6838\u5fc3\uff0c\u5728\u9019\u6b21\u7684\u5371\u6a5f\u7576\u4e0b\u548c\u66f4\u9060\u7684\u672a\u4f86\uff0c\u5b83\u4e5f\u662f\u6df1\u5316\u865b\u64ec\u751f\u6d3b\u9023\u7d50\u7684\u6838\u5fc3\u95dc\u9375\u3002 AV1 \u662f\u767c\u5c55\u66f4\u9ad8\u54c1\u8cea\u5373\u6642\u6703\u8b70\u9ad4\u9a57\u7684\u591a\u65b9\u4f4d\u7b56\u7565\u4e2d\u7684\u4e00\u74b0\uff0c\u9019\u500b\u7b56\u7565\u7c21\u800c\u8a00\u4e4b\u5c31\u662f\u8b93\u9ad4\u9a57\u54c1\u8cea\u63d0\u5347 10 \u500d<\/a>\u3002 \u6211\u5011\u7684\u76ee\u6a19\u662f\u8981\u628a AV1 \u5316\u70ba\u65b0\u7684\u5e38\u614b\uff0c\u4f46\u540c\u6642\u4e5f\u8981\u8b93\u5176\u7de8\u78bc\u7684\u5a92\u9ad4\u8b8a\u5f97\u66f4\u8c50\u5bcc\u3001\u66f4\u7cbe\u7d30\u4e14\u66f4\u52a0\u751f\u52d5\u3002<\/p>\n

\u95dc\u65bc\u4f5c\u8005<\/strong><\/p>\n

Thomas Davies<\/a> \u662f\u5354\u4f5c\u6280\u8853\u5c0f\u7d44\u7684\u9996\u5e2d\u5de5\u7a0b\u5e2b\u3002 \u4ed6\u904e\u53bb\u66fe\u5728\u885b\u661f\u7db2\u8def\u3001\u5c04\u983b\u901a\u8a0a\u53ca\u5ee3\u64ad\u696d\u754c\u670d\u52d9\uff0c\u4f46\u662f\u5728\u8996\u8a0a\u548c\u7de8\u89e3\u78bc\u5668\u7684\u5f9e\u696d\u6642\u9593\u6700\u9577\u3002 \u5728 Cisco \u4efb\u8077 8 \u5e74\u591a\u4ee5\u4f86\uff0cThomas \u4e00\u76f4\u6295\u8eab\u65bc\u5275\u9020\u65b0\u4e00\u4ee3\u7684\u5354\u4f5c\u9ad4\u9a57\u3002<\/p>\n

Sijia Chen<\/a> \u662f\u5354\u4f5c\u6280\u8853\u5c0f\u7d44\u7684\u6280\u8853\u9818\u5c0e\u4eba\u3002 \u5979\u4e3b\u8981\u57f7\u638c\u8996\u8a0a\u76f8\u95dc\u529f\u80fd\u696d\u52d9\uff0c\u5305\u62ec\u8996\u8a0a\u7de8\u89e3\u78bc\u6f14\u7b97\u6cd5\u8a2d\u8a08\u548c\u5be6\u4f5c\uff0c\u4ee5\u53ca\u8996\u8a0a\u54c1\u8cea\u8a55\u4f30\u548c\u6307\u6a19\u3002 Sijia \u5728\u3000Cisco \u5f9e\u4e8b Webex Media Engine \u76f8\u95dc\u5de5\u4f5c\u5df2\u903e 12 \u5e74\uff0c\u5176\u6a6b\u8de8\u6578\u500b Webex \u7522\u54c1\u7dda\u3002<\/p>\n


\n \u6309\u4e00\u4e0b\u9019\u88e1<\/a>\u6df1\u5165\u77ad\u89e3 Webex \u7522\u54c1\u4e26\u8a3b\u518a\u514d\u8cbb\u5e33\u865f\u3002\u00a0<\/span><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

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