{"id":18848,"date":"2024-05-24T08:00:48","date_gmt":"2024-05-24T00:00:48","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/how-hong-kong-gpu-servers-power-video-encoding-and-decoding\/"},"modified":"2025-03-26T09:37:19","modified_gmt":"2025-03-26T01:37:19","slug":"how-hong-kong-gpu-servers-power-video-encoding-and-decoding","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/how-hong-kong-gpu-servers-power-video-encoding-and-decoding\/","title":{"rendered":"\u9999\u6e2fGPU\u4f3a\u670d\u5668\u5982\u4f55\u652f\u63f4\u8996\u8a0a\u7de8\u89e3\u78bc\uff1f"},"content":{"rendered":"

\u5728\u5feb\u901f\u767c\u5c55\u7684\u8996\u8a0a\u8655\u7406\u9818\u57df\uff0c\u9999\u6e2fGPU\u4f3a\u670d\u5668<\/a>\u5df2\u6210\u70ba\u8655\u7406\u5bc6\u96c6\u578b\u8996\u8a0a\u7de8\u89e3\u78bc\u5de5\u4f5c\u8ca0\u8f09\u7684\u5f37\u5927\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6280\u8853\u6df1\u5ea6\u63a2\u8a0e\u5c07\u8a73\u7d30\u4ecb\u7d39GPU\u52a0\u901f\u8996\u8a0a\u8655\u7406\u7cfb\u7d71\u7684\u67b6\u69cb\u3001\u5be6\u65bd\u548c\u6700\u4f73\u5316\u7b56\u7565\u3002<\/p>\n

\u77ad\u89e3GPU\u52a0\u901f\u8996\u8a0a\u8655\u7406\u67b6\u69cb<\/strong><\/h2>\n

GPU\u52a0\u901f\u8996\u8a0a\u8655\u7406\u5229\u7528\u5e73\u884c\u904b\u7b97\u80fd\u529b\u540c\u6642\u8655\u7406\u591a\u500b\u8996\u8a0a\u6d41\u3002\u8207\u50b3\u7d71\u7684\u57fa\u65bcCPU\u7684\u8655\u7406\u4e0d\u540c\uff0c\u73fe\u4ee3NVIDIA GPU\u63a1\u7528\u5c08\u9580\u7684\u7de8\u78bc\/\u89e3\u78bc\u6a21\u7d44(NVENC\/NVDEC)\uff0c\u986f\u8457\u964d\u4f4e\u4e86\u8655\u7406\u958b\u92b7\u3002<\/p>\n

\u8acb\u770b\u9019\u500b\u67b6\u69cb\u7d30\u5206\uff1a<\/p>\n

\r\n\u8996\u8a0a\u8655\u7406\u6d41\u7a0b\uff1a\r\n\u8f38\u5165\u6d41 \u2192 \u89e3\u8907\u7528\u5668 \u2192 \u89e3\u78bc\u5668(NVDEC) \u2192 \u8655\u7406 \u2192 \u7de8\u78bc\u5668(NVENC) \u2192 \u8f38\u51fa\u6d41\r\n\r\nGPU\u8a18\u61b6\u9ad4\u914d\u7f6e\uff1a\r\n- \u5e40\u7de9\u885d\u5340\uff1a8-16GB VRAM\r\n- \u7de8\u78bc\u5668\u5feb\u53d6\uff1a\u6bcf\u6d41128MB\r\n- \u89e3\u78bc\u5668\u5feb\u53d6\uff1a\u6bcf\u6d4164MB\r\n- \u8655\u7406\u7de9\u885d\u5340\uff1a\u52d5\u614b\u5206\u914d\r\n<\/code><\/pre>\n
\u786c\u9ad4\u898f\u683c\u548c\u8981\u6c42<\/strong><\/h2>\n
\u70ba\u5728\u9999\u6e2f\u8cc7\u6599\u4e2d\u5fc3\u7372\u5f97\u6700\u4f73\u8996\u8a0a\u8655\u7406\u6548\u80fd\uff0c\u6211\u5011\u63a8\u85a6\u4ee5\u4e0bGPU\u914d\u7f6e\uff1a<\/p>\n
\r\n\u63a8\u85a6\u914d\u7f6e\uff1a\r\n1. GPU\uff1aNVIDIA RTX4090\u6216\u540c\u7b49\u7522\u54c1\r\n   - VRAM\uff1a16GB GDDR6\r\n   - NVENC\u5de5\u4f5c\u968e\u6bb5\uff1a\u6700\u591a8\u500b\u4e26\u767c\r\n   - NVDEC\u5de5\u4f5c\u968e\u6bb5\uff1a\u6700\u591a12\u500b\u4e26\u767c\r\n\r\n2. \u7cfb\u7d71\u8981\u6c42\uff1a\r\n   - CPU\uff1aIntel Xeon\u6216\u540c\u7b49\u7522\u54c1\r\n   - \u8a18\u61b6\u9ad4\uff1a128GB DDR4\r\n   - \u5132\u5b58\uff1aNVMe SSD RAID\r\n   - \u7db2\u8def\uff1a\u6700\u4f4e10GbE\r\n<\/code><\/pre>\n
\u6548\u80fd\u57fa\u6e96\u548c\u6700\u4f73\u5316<\/strong><\/h2>\n
\u6211\u5011\u5728\u9999\u6e2fGPU\u4f3a\u670d\u5668\u4e0a\u7684\u57fa\u6e96\u6e2c\u8a66\u986f\u793a\u4e86\u8996\u8a0a\u8655\u7406\u5de5\u4f5c\u8ca0\u8f09\u7684\u986f\u8457\u6548\u80fd\u512a\u52e2\u3002\u4ee5\u4e0b\u662f\u8655\u7406\u91cf\u80fd\u529b\u7684\u8a73\u7d30\u5206\u6790\uff1a<\/p>\n
\r\n\u6700\u4f73\u5316\u53c3\u6578\uff1a\r\nencode_params = {\r\n    'preset': 'P4',\r\n    'tune': 'hq',\r\n    'rc': 'vbr',\r\n    'profile': 'high',\r\n    'multipass': '2'\r\n}\r\n<\/code><\/pre>\n
\u7db2\u8def\u67b6\u69cb\u548c\u8cc7\u6599\u6d41<\/strong><\/h2>\n
\u9999\u6e2f\u7684\u6230\u7565\u4f4d\u7f6e\u70ba\u6574\u500b\u4e9e\u592a\u5730\u5340\u7684\u8996\u8a0a\u50b3\u8f38\u63d0\u4f9b\u4e86\u6700\u4f73\u7db2\u8def\u6548\u80fd\u3002\u57fa\u790e\u8a2d\u65bd\u5229\u7528\u591a\u500b\u4e00\u7d1a\u71df\u904b\u5546\u548c\u4e3b\u8981\u7db2\u969b\u7db2\u8def\u4ea4\u63db\u4e2d\u5fc3\u7684\u76f4\u63a5\u9023\u63a5\u3002<\/p>\n
\r\n\u7db2\u8def\u62d3\u64b2\uff1a\r\n[\u7528\u6236\u7aef] \u2190\u2192 [\u908a\u7de3\u5feb\u53d6] \u2190\u2192 [GPU\u4f3a\u670d\u5668]\r\n                \u2193\r\n        [CDN\u5206\u767c]\r\n        \r\n\u5ef6\u9072\u77e9\u9663\uff08\u6beb\u79d2\uff09\uff1a\r\n- \u9999\u6e2f \u2192 \u4e2d\u570b\uff1a20-40\r\n- \u9999\u6e2f \u2192 \u65e5\u672c\uff1a50-70\r\n- \u9999\u6e2f \u2192 \u65b0\u52a0\u5761\uff1a40-60\r\n- \u9999\u6e2f \u2192 \u7f8e\u570b\u897f\u90e8\uff1a130-150\r\n<\/code><\/pre>\n
\u8996\u8a0a\u8655\u7406\u5de5\u4f5c\u6d41\u7a0b\u5be6\u65bd\u6307\u5357<\/strong><\/h2>\n
\u4ee5\u4e0b\u662f\u5728\u9999\u6e2fGPU\u4f3a\u670d\u5668\u4e0a\u8a2d\u7f6e\u8996\u8a0a\u8655\u7406\u5de5\u4f5c\u6d41\u7a0b\u7684\u5be6\u7528\u5be6\u65bd\u65b9\u6cd5\uff1a<\/p>\n
\r\n# \u4f7f\u7528nvidia-docker\u7684Python\u5be6\u73fe\r\nimport nvidia.docker as nvd\r\n\r\nclass GPUVideoProcessor:\r\n    def __init__(self):\r\n        self.gpu_options = {\r\n            'device': '\/dev\/nvidia0',\r\n            'capabilities': ['video', 'compute']\r\n        }\r\n        \r\n    def setup_pipeline(self):\r\n        return {\r\n            'input': self._configure_input(),\r\n            'processing': self._setup_gpu_processing(),\r\n            'output': self._configure_output()\r\n        }\r\n        \r\n    def _setup_gpu_processing(self):\r\n        return {\r\n            'encoder': 'h264_nvenc',\r\n            'decoder': 'h264_cuvid',\r\n            'preset': 'p4',\r\n            'gpu_memory_reserved': '8G'\r\n        }\r\n<\/code><\/pre>\n
\u6210\u672c\u6548\u76ca\u5206\u6790<\/strong><\/h2>\n
\u5728\u8a55\u4f30\u9999\u6e2fGPU\u4f3a\u670d\u5668\u79df\u7528\u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u8acb\u8003\u616e\u4ee5\u4e0b\u7e3d\u64c1\u6709\u6210\u672c(TCO)\u7684\u95dc\u9375\u56e0\u7d20\uff1a<\/p>\n
TCO\u7d44\u6210\u90e8\u5206\uff1a<\/strong><\/p>\n
1. \u57fa\u790e\u8a2d\u65bd\u6210\u672c<\/strong><\/p>\n
– GPU\u4f3a\u670d\u5668\u786c\u9ad4<\/p>\n
– \u51b7\u537b\u7cfb\u7d71<\/p>\n
– \u7db2\u8def\u8a2d\u5099<\/p>\n
2. \u71df\u904b\u652f\u51fa<\/strong><\/p>\n
– \u80fd\u6e90\u6d88\u8017<\/p>\n
– \u983b\u5bec\u4f7f\u7528<\/p>\n
– \u7cfb\u7d71\u7ba1\u7406<\/p>\n
– \u6280\u8853\u652f\u63f4<\/p>\n
3. \u6548\u80fd\u6307\u6a19<\/strong><\/p>\n
– \u6bcf\u6d41\u6210\u672c<\/p>\n
– \u6bcf\u8655\u7406\u5c0f\u6642\u6210\u672c<\/p>\n
– \u8cc7\u6e90\u5229\u7528\u7387<\/p>\n
4. \u6700\u4f73\u5316\u56e0\u7d20<\/strong><\/p>\n
– \u6279\u6b21\u8655\u7406\u6548\u7387<\/p>\n
– \u591a\u79df\u6236\u4f7f\u7528<\/p>\n
– \u5de5\u4f5c\u8ca0\u8f09\u5206\u914d<\/p>\n
\u8981\u8a08\u7b97\u6700\u4f73\u6210\u672c\u6548\u80fd\u6bd4\uff0c\u8acb\u8003\u616e\u9019\u4e9b\u95dc\u9375\u6548\u80fd\u6307\u6a19(KPI)\uff1a<\/p>\n
\u6548\u80fd\u6548\u7387\u6307\u6a19\uff1a<\/strong><\/p>\n
– \u6bcfGPU\u6d41\u6578\u91cf<\/p>\n
– \u6bcf\u8cc7\u6e90\u55ae\u4f4d\u8655\u7406\u5c0f\u6642\u6578<\/p>\n
– \u983b\u5bec\u6548\u7387<\/p>\n
– \u80fd\u6e90\u6548\u7387\uff08\u6bcf\u74e6\u6548\u80fd\uff09<\/p>\n
– \u8cc7\u6e90\u5229\u7528\u7387<\/p>\n
\u6295\u8cc7\u56de\u5831\u7387\u8a08\u7b97\u56e0\u7d20\uff1a<\/strong><\/p>\n
– \u786c\u9ad4\u6298\u820a<\/p>\n
– \u71df\u904b\u958b\u92b7<\/p>\n
– \u983b\u5bec\u6d88\u8017<\/p>\n
– \u8655\u7406\u91cf<\/p>\n
\u5be6\u969b\u61c9\u7528\u5834\u666f<\/strong><\/h2>\n
\u8b93\u6211\u5011\u770b\u770b\u9999\u6e2fGPU\u4f3a\u670d\u5668\u5728\u8996\u8a0a\u8655\u7406\u65b9\u9762\u8868\u73fe\u51fa\u8272\u7684\u5177\u9ad4\u5be6\u65bd\u6848\u4f8b\uff1a<\/p>\n
\r\n\u6848\u4f8b\u7814\u7a761\uff1a\u4f01\u696d\u76f4\u64ad\u5e73\u53f0\r\n\u67b6\u69cb\u6982\u8ff0\uff1a\r\n- \u8f38\u5165\uff1a\u591a\u6e901080p\u6d41\r\n- \u8655\u7406\uff1a\u5373\u6642\u8f49\u78bc\u70ba\u81ea\u9069\u61c9\u4f4d\u5143\u901f\u7387\r\n- \u8f38\u51fa\uff1a\u591aCDN\u5206\u767c\r\n- GPU\u8cc7\u6e90\u5206\u914d\uff1a\u81ea\u9069\u61c9\u64f4\u5c55\r\n- \u5ef6\u9072\u76ee\u6a19\uff1a3\u79d2\u4ee5\u5167\r\n\r\n\u6280\u8853\u5be6\u73fe\uff1a\r\nffmpeg -hwaccel cuvid -c:v h264_cuvid -i input.mp4 \\\r\n    -c:v h264_nvenc -preset p4 -b:v {bitrate} output.mp4\r\n\r\n\u6848\u4f8b\u7814\u7a762\uff1a\u96a8\u9078\u8996\u8a0a\u5e73\u53f0\r\n\u5de5\u4f5c\u6d41\u7a0b\u914d\u7f6e\uff1a\r\n- \u6279\u6b21\u8655\u7406\u6d41\u7a0b\r\n- \u591a\u683c\u5f0f\u8f38\u51fa\u652f\u63f4\r\n- \u81ea\u52d5\u5316\u54c1\u8cea\u63a7\u5236\r\n- \u52d5\u614b\u8cc7\u6e90\u5206\u914d\r\n<\/code><\/pre>\n
\u8cc7\u6e90\u6700\u4f73\u5316\u7b56\u7565<\/strong><\/h2>\n
\u5be6\u65bd\u9019\u4e9b\u6700\u4f73\u5316\u6280\u8853\u4ee5\u6700\u5927\u5316GPU\u4f3a\u670d\u5668\u6548\u7387\uff1a<\/p>\n
\r\n\u8cc7\u6e90\u5206\u914d\u7b56\u7565\uff1a\r\n1. \u52d5\u614b\u64f4\u5c55\r\n   - \u76e3\u63a7GPU\u5229\u7528\u7387\r\n   - \u8abf\u6574\u5de5\u4f5c\u8ca0\u8f09\u5206\u914d\r\n   - \u6700\u4f73\u5316\u8a18\u61b6\u9ad4\u5206\u914d\r\n\r\n2. \u6d41\u7a0b\u6700\u4f73\u5316\r\n   - \u5e73\u884c\u8655\u7406\r\n   - \u4f47\u5217\u7ba1\u7406\r\n   - \u5feb\u53d6\u6700\u4f73\u5316\r\n\r\n3. \u6548\u80fd\u8abf\u512a\r\n   const optimizeEncoder = {\r\n       preset: 'p4',\r\n       tune: 'hq',\r\n       multipass: true,\r\n       lookahead: 32,\r\n       b_frames: 3\r\n   }\r\n<\/code><\/pre>\n
\u7cfb\u7d71\u76e3\u63a7\u548c\u7dad\u8b77<\/strong><\/h2>\n
\u70baGPU\u4f3a\u670d\u5668\u6548\u80fd\u5be6\u65bd\u5f37\u5927\u7684\u76e3\u63a7\u7cfb\u7d71\uff1a<\/p>\n
\u76e3\u63a7\u6307\u6a19\uff1a<\/strong><\/p>\n
1. \u7cfb\u7d71\u5065\u5eb7<\/strong><\/p>\n
– GPU\u5229\u7528\u7387\u95be\u503c<\/p>\n
– \u8a18\u61b6\u9ad4\u4f7f\u7528\u53c3\u6578<\/p>\n
– \u6eab\u5ea6\u9650\u5236<\/p>\n
– \u8655\u7406\u4f47\u5217\u9577\u5ea6<\/p>\n
2. \u54c1\u8cea\u6307\u6a19<\/strong><\/p>\n
– \u7de8\u78bc\u54c1\u8cea\u5206\u6578<\/p>\n
– \u6d41\u7a69\u5b9a\u6027\u6307\u6578<\/p>\n
– \u932f\u8aa4\u7387\u76e3\u63a7<\/p>\n
– \u5ef6\u9072\u6e2c\u91cf<\/p>\n
3. \u8cc7\u6e90\u6548\u7387<\/strong><\/p>\n
– \u8655\u7406\u8655\u7406\u91cf<\/p>\n
– \u8cc7\u6e90\u5229\u7528\u7387<\/p>\n
– \u4f47\u5217\u7ba1\u7406<\/p>\n
– \u8ca0\u8f09\u5206\u914d<\/p>\n
\u672a\u4f86\u6280\u8853\u6574\u5408<\/strong><\/h2>\n
\u9999\u6e2f\u8cc7\u6599\u4e2d\u5fc3\u7684GPU\u52a0\u901f\u8996\u8a0a\u8655\u7406\u7e7c\u7e8c\u96a8\u8457\u65b0\u8208\u6280\u8853\u7684\u767c\u5c55\u800c\u9032\u6b65\uff1a<\/p>\n
\u9762\u5411\u672a\u4f86\u7684\u67b6\u69cb\uff1a<\/strong><\/p>\n
1. AI\u6574\u5408<\/strong><\/p>\n
– \u667a\u6167\u8f49\u78bc<\/p>\n
– \u5167\u5bb9\u611f\u77e5\u8655\u7406<\/p>\n
– \u81ea\u52d5\u5316\u54c1\u8cea\u63d0\u5347<\/p>\n
2. \u53ef\u64f4\u5c55\u6027\u7279\u5fb5<\/strong><\/p>\n
– \u5fae\u670d\u52d9\u67b6\u69cb<\/p>\n
– \u5bb9\u5668\u7de8\u6392<\/p>\n
– \u52d5\u614b\u8cc7\u6e90\u6c60<\/p>\n
3. \u9032\u968e\u5354\u5b9a<\/strong><\/p>\n
– AV1\u7de8\u78bc\u652f\u63f4<\/p>\n
– WebRTC\u6700\u4f73\u5316<\/p>\n
– \u4f4e\u5ef6\u9072\u4e32\u6d41\u5a92\u9ad4<\/p>\n
\u9999\u6e2f\u4f5c\u70ba\u6280\u8853\u4e2d\u5fc3\u7684\u6230\u7565\u5730\u4f4d\uff0c\u7d50\u5408\u5148\u9032\u7684GPU\u57fa\u790e\u8a2d\u65bd\uff0c\u70ba\u5176\u63d0\u4f9b\u4e86\u7406\u60f3\u7684\u4e0b\u4e00\u4ee3\u8996\u8a0a\u8655\u7406\u9700\u6c42\u689d\u4ef6\u3002\u5c0d\u6280\u8853\u5275\u65b0\u548c\u57fa\u790e\u8a2d\u65bd\u767c\u5c55\u7684\u95dc\u6ce8\u78ba\u4fdd\u4e86\u8996\u8a0a\u8655\u7406\u80fd\u529b\u7684\u6301\u7e8c\u6210\u9577\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u5feb\u901f\u767c\u5c55\u7684\u8996\u8a0a\u8655\u7406\u9818\u57df\uff0c\u9999\u6e2fGPU\u4f3a\u670d\u5668\u5df2\u6210\u70ba\u8655\u7406\u5bc6\u96c6\u578b\u8996\u8a0a\u7de8\u89e3\u78bc\u5de5\u4f5c\u8ca0\u8f09\u7684\u5f37\u5927\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6280\u8853\u6df1\u5ea6\u63a2\u8a0e\u5c07\u8a73 […]<\/p>\n
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