{"id":18847,"date":"2024-05-24T08:00:48","date_gmt":"2024-05-24T00:00:48","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/how-hong-kong-gpu-servers-power-video-encoding-and-decoding\/"},"modified":"2025-03-26T09:37:41","modified_gmt":"2025-03-26T01:37:41","slug":"how-hong-kong-gpu-servers-power-video-encoding-and-decoding","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/how-hong-kong-gpu-servers-power-video-encoding-and-decoding\/","title":{"rendered":"\u9999\u6e2fGPU\u670d\u52a1\u5668\u5982\u4f55\u652f\u6301\u89c6\u9891\u7f16\u89e3\u7801?"},"content":{"rendered":"

\u5728\u5feb\u901f\u53d1\u5c55\u7684\u89c6\u9891\u5904\u7406\u9886\u57df\uff0c\u9999\u6e2fGPU\u670d\u52a1\u5668<\/a>\u5df2\u6210\u4e3a\u5904\u7406\u5bc6\u96c6\u578b\u89c6\u9891\u7f16\u89e3\u7801\u5de5\u4f5c\u8d1f\u8f7d\u7684\u5f3a\u5927\u89e3\u51b3\u65b9\u6848\u3002\u672c\u6280\u672f\u6df1\u5ea6\u63a2\u8ba8\u5c06\u8be6\u7ec6\u4ecb\u7ecdGPU\u52a0\u901f\u89c6\u9891\u5904\u7406\u7cfb\u7edf\u7684\u67b6\u6784\u3001\u5b9e\u65bd\u548c\u4f18\u5316\u7b56\u7565\u3002<\/p>\n

\u4e86\u89e3GPU\u52a0\u901f\u89c6\u9891\u5904\u7406\u67b6\u6784<\/strong><\/h2>\n

GPU\u52a0\u901f\u89c6\u9891\u5904\u7406\u5229\u7528\u5e76\u884c\u8ba1\u7b97\u80fd\u529b\u540c\u65f6\u5904\u7406\u591a\u4e2a\u89c6\u9891\u6d41\u3002\u4e0e\u4f20\u7edf\u7684\u57fa\u4e8eCPU\u7684\u5904\u7406\u4e0d\u540c\uff0c\u73b0\u4ee3NVIDIA GPU\u91c7\u7528\u4e13\u95e8\u7684\u7f16\u7801\/\u89e3\u7801\u6a21\u5757(NVENC\/NVDEC)\uff0c\u663e\u8457\u964d\u4f4e\u4e86\u5904\u7406\u5f00\u9500\u3002<\/p>\n

\u8bf7\u770b\u8fd9\u4e2a\u67b6\u6784\u7ec6\u5206\uff1a<\/p>\n

\r\n\u89c6\u9891\u5904\u7406\u6d41\u7a0b\uff1a\r\n\u8f93\u5165\u6d41 \u2192 \u89e3\u590d\u7528\u5668 \u2192 \u89e3\u7801\u5668(NVDEC) \u2192 \u5904\u7406 \u2192 \u7f16\u7801\u5668(NVENC) \u2192 \u8f93\u51fa\u6d41\r\n\r\nGPU\u5185\u5b58\u5e03\u5c40\uff1a\r\n- \u5e27\u7f13\u51b2\u533a\uff1a8-16GB VRAM\r\n- \u7f16\u7801\u5668\u7f13\u5b58\uff1a\u6bcf\u6d41128MB\r\n- \u89e3\u7801\u5668\u7f13\u5b58\uff1a\u6bcf\u6d4164MB\r\n- \u5904\u7406\u7f13\u51b2\u533a\uff1a\u52a8\u6001\u5206\u914d\r\n<\/code><\/pre>\n
\u786c\u4ef6\u89c4\u683c\u548c\u8981\u6c42<\/strong><\/h2>\n
\u4e3a\u5728\u9999\u6e2f\u6570\u636e\u4e2d\u5fc3\u83b7\u5f97\u6700\u4f73\u89c6\u9891\u5904\u7406\u6027\u80fd\uff0c\u6211\u4eec\u63a8\u8350\u4ee5\u4e0bGPU\u914d\u7f6e\uff1a<\/p>\n
\r\n\u63a8\u8350\u914d\u7f6e\uff1a\r\n1. GPU\uff1aNVIDIA RTX4090\u6216\u540c\u7b49\u4ea7\u54c1\r\n   - VRAM\uff1a16GB GDDR6\r\n   - NVENC\u4f1a\u8bdd\uff1a\u6700\u591a8\u4e2a\u5e76\u53d1\r\n   - NVDEC\u4f1a\u8bdd\uff1a\u6700\u591a12\u4e2a\u5e76\u53d1\r\n\r\n2. \u7cfb\u7edf\u8981\u6c42\uff1a\r\n   - CPU\uff1aIntel Xeon\u6216\u540c\u7b49\u4ea7\u54c1\r\n   - \u5185\u5b58\uff1a128GB DDR4\r\n   - \u5b58\u50a8\uff1aNVMe SSD RAID\r\n   - \u7f51\u7edc\uff1a\u6700\u4f4e10GbE\r\n<\/code><\/pre>\n
\u6027\u80fd\u57fa\u51c6\u548c\u4f18\u5316<\/strong><\/h2>\n
\u6211\u4eec\u5728\u9999\u6e2fGPU\u670d\u52a1\u5668\u4e0a\u7684\u57fa\u51c6\u6d4b\u8bd5\u663e\u793a\u4e86\u89c6\u9891\u5904\u7406\u5de5\u4f5c\u8d1f\u8f7d\u7684\u663e\u8457\u6027\u80fd\u4f18\u52bf\u3002\u4ee5\u4e0b\u662f\u541e\u5410\u91cf\u80fd\u529b\u7684\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n
\r\n\u4f18\u5316\u53c2\u6570\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
\u7f51\u7edc\u67b6\u6784\u548c\u6570\u636e\u6d41<\/strong><\/h2>\n
\u9999\u6e2f\u7684\u6218\u7565\u4f4d\u7f6e\u4e3a\u6574\u4e2a\u4e9a\u592a\u5730\u533a\u7684\u89c6\u9891\u4f20\u8f93\u63d0\u4f9b\u4e86\u6700\u4f73\u7f51\u7edc\u6027\u80fd\u3002\u57fa\u7840\u8bbe\u65bd\u5229\u7528\u591a\u4e2a\u4e00\u7ea7\u8fd0\u8425\u5546\u548c\u4e3b\u8981\u4e92\u8054\u7f51\u4ea4\u6362\u4e2d\u5fc3\u7684\u76f4\u63a5\u8fde\u63a5\u3002<\/p>\n
\r\n\u7f51\u7edc\u62d3\u6251\uff1a\r\n[\u5ba2\u6237\u7aef] \u2190\u2192 [\u8fb9\u7f18\u7f13\u5b58] \u2190\u2192 [GPU\u670d\u52a1\u5668]\r\n                \u2193\r\n        [CDN\u5206\u53d1]\r\n        \r\n\u5ef6\u8fdf\u77e9\u9635\uff08\u6beb\u79d2\uff09\uff1a\r\n- \u9999\u6e2f \u2192 \u4e2d\u56fd\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\u56fd\u897f\u90e8\uff1a130-150\r\n<\/code><\/pre>\n
\u89c6\u9891\u5904\u7406\u5de5\u4f5c\u6d41\u5b9e\u65bd\u6307\u5357<\/strong><\/h2>\n
\u4ee5\u4e0b\u662f\u5728\u9999\u6e2fGPU\u670d\u52a1\u5668\u4e0a\u8bbe\u7f6e\u89c6\u9891\u5904\u7406\u5de5\u4f5c\u6d41\u7684\u5b9e\u7528\u5b9e\u65bd\u65b9\u6cd5\uff1a<\/p>\n
\r\n# \u4f7f\u7528nvidia-docker\u7684Python\u5b9e\u73b0\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\u8bc4\u4f30\u9999\u6e2fGPU\u670d\u52a1\u5668\u79df\u7528\u89e3\u51b3\u65b9\u6848\u65f6\uff0c\u8bf7\u8003\u8651\u4ee5\u4e0b\u603b\u62e5\u6709\u6210\u672c(TCO)\u7684\u5173\u952e\u56e0\u7d20\uff1a<\/p>\n
TCO\u7ec4\u6210\u90e8\u5206\uff1a<\/strong><\/p>\n
1. \u57fa\u7840\u8bbe\u65bd\u6210\u672c<\/strong><\/p>\n
– GPU\u670d\u52a1\u5668\u786c\u4ef6<\/p>\n
– \u51b7\u5374\u7cfb\u7edf<\/p>\n
– \u7f51\u7edc\u8bbe\u5907<\/p>\n
2. \u8fd0\u8425\u652f\u51fa<\/strong><\/p>\n
– \u80fd\u6e90\u6d88\u8017<\/p>\n
– \u5e26\u5bbd\u4f7f\u7528<\/p>\n
– \u7cfb\u7edf\u7ba1\u7406<\/p>\n
– \u6280\u672f\u652f\u6301<\/p>\n
3. \u6027\u80fd\u6307\u6807<\/strong><\/p>\n
– \u6bcf\u6d41\u6210\u672c<\/p>\n
– \u6bcf\u5904\u7406\u5c0f\u65f6\u6210\u672c<\/p>\n
– \u8d44\u6e90\u5229\u7528\u7387<\/p>\n
4. \u4f18\u5316\u56e0\u7d20<\/strong><\/p>\n
– \u6279\u5904\u7406\u6548\u7387<\/p>\n
– \u591a\u79df\u6237\u4f7f\u7528<\/p>\n
– \u5de5\u4f5c\u8d1f\u8f7d\u5206\u914d<\/p>\n
\u8981\u8ba1\u7b97\u6700\u4f73\u6210\u672c\u6027\u80fd\u6bd4\uff0c\u8bf7\u8003\u8651\u8fd9\u4e9b\u5173\u952e\u6027\u80fd\u6307\u6807(KPI)\uff1a<\/p>\n
\u6027\u80fd\u6548\u7387\u6307\u6807\uff1a<\/strong><\/p>\n
– \u6bcfGPU\u6d41\u6570\u91cf<\/p>\n
– \u6bcf\u8d44\u6e90\u5355\u4f4d\u5904\u7406\u5c0f\u65f6\u6570<\/p>\n
– \u5e26\u5bbd\u6548\u7387<\/p>\n
– \u80fd\u6e90\u6548\u7387\uff08\u6bcf\u74e6\u6027\u80fd\uff09<\/p>\n
– \u8d44\u6e90\u5229\u7528\u7387<\/p>\n
\u6295\u8d44\u56de\u62a5\u7387\u8ba1\u7b97\u56e0\u7d20\uff1a<\/strong><\/p>\n
– \u786c\u4ef6\u6298\u65e7<\/p>\n
– \u8fd0\u8425\u5f00\u9500<\/p>\n
– \u5e26\u5bbd\u6d88\u8017<\/p>\n
– \u5904\u7406\u91cf<\/p>\n
\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/strong><\/h2>\n
\u8ba9\u6211\u4eec\u770b\u770b\u9999\u6e2fGPU\u670d\u52a1\u5668\u5728\u89c6\u9891\u5904\u7406\u65b9\u9762\u8868\u73b0\u51fa\u8272\u7684\u5177\u4f53\u5b9e\u65bd\u6848\u4f8b\uff1a<\/p>\n
\r\n\u6848\u4f8b\u7814\u7a761\uff1a\u4f01\u4e1a\u76f4\u64ad\u5e73\u53f0\r\n\u67b6\u6784\u6982\u8ff0\uff1a\r\n- \u8f93\u5165\uff1a\u591a\u6e901080p\u6d41\r\n- \u5904\u7406\uff1a\u5b9e\u65f6\u8f6c\u7801\u4e3a\u81ea\u9002\u5e94\u6bd4\u7279\u7387\r\n- \u8f93\u51fa\uff1a\u591aCDN\u5206\u53d1\r\n- GPU\u8d44\u6e90\u5206\u914d\uff1a\u81ea\u9002\u5e94\u6269\u5c55\r\n- \u5ef6\u8fdf\u76ee\u6807\uff1a3\u79d2\u4ee5\u5185\r\n\r\n\u6280\u672f\u5b9e\u73b0\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\u70b9\u64ad\u5e73\u53f0\r\n\u5de5\u4f5c\u6d41\u914d\u7f6e\uff1a\r\n- \u6279\u5904\u7406\u6d41\u7a0b\r\n- \u591a\u683c\u5f0f\u8f93\u51fa\u652f\u6301\r\n- \u81ea\u52a8\u5316\u8d28\u91cf\u63a7\u5236\r\n- \u52a8\u6001\u8d44\u6e90\u5206\u914d\r\n<\/code><\/pre>\n
\u8d44\u6e90\u4f18\u5316\u7b56\u7565<\/strong><\/h2>\n
\u5b9e\u65bd\u8fd9\u4e9b\u4f18\u5316\u6280\u672f\u4ee5\u6700\u5927\u5316GPU\u670d\u52a1\u5668\u6548\u7387\uff1a<\/p>\n
\r\n\u8d44\u6e90\u5206\u914d\u7b56\u7565\uff1a\r\n1. \u52a8\u6001\u6269\u5c55\r\n   - \u76d1\u63a7GPU\u5229\u7528\u7387\r\n   - \u8c03\u6574\u5de5\u4f5c\u8d1f\u8f7d\u5206\u914d\r\n   - \u4f18\u5316\u5185\u5b58\u5206\u914d\r\n\r\n2. \u6d41\u7a0b\u4f18\u5316\r\n   - \u5e76\u884c\u5904\u7406\r\n   - \u961f\u5217\u7ba1\u7406\r\n   - \u7f13\u5b58\u4f18\u5316\r\n\r\n3. \u6027\u80fd\u8c03\u4f18\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\u7edf\u76d1\u63a7\u548c\u7ef4\u62a4<\/strong><\/h2>\n
\u4e3aGPU\u670d\u52a1\u5668\u6027\u80fd\u5b9e\u65bd\u5f3a\u5927\u7684\u76d1\u63a7\u7cfb\u7edf\uff1a<\/p>\n
\u76d1\u63a7\u6307\u6807\uff1a<\/strong><\/p>\n
1. \u7cfb\u7edf\u5065\u5eb7<\/strong><\/p>\n
– GPU\u5229\u7528\u7387\u9608\u503c<\/p>\n
– \u5185\u5b58\u4f7f\u7528\u53c2\u6570<\/p>\n
– \u6e29\u5ea6\u9650\u5236<\/p>\n
– \u5904\u7406\u961f\u5217\u957f\u5ea6<\/p>\n
2. \u8d28\u91cf\u6307\u6807<\/strong><\/p>\n
– \u7f16\u7801\u8d28\u91cf\u5206\u6570<\/p>\n
– \u6d41\u7a33\u5b9a\u6027\u6307\u6570<\/p>\n
– \u9519\u8bef\u7387\u76d1\u63a7<\/p>\n
– \u5ef6\u8fdf\u6d4b\u91cf<\/p>\n
3. \u8d44\u6e90\u6548\u7387<\/strong><\/p>\n
– \u5904\u7406\u541e\u5410\u91cf<\/p>\n
– \u8d44\u6e90\u5229\u7528\u7387<\/p>\n
– \u961f\u5217\u7ba1\u7406<\/p>\n
– \u8d1f\u8f7d\u5206\u914d<\/p>\n
\u672a\u6765\u6280\u672f\u6574\u5408<\/strong><\/h2>\n
\u9999\u6e2f\u6570\u636e\u4e2d\u5fc3\u7684GPU\u52a0\u901f\u89c6\u9891\u5904\u7406\u7ee7\u7eed\u968f\u7740\u65b0\u5174\u6280\u672f\u7684\u53d1\u5c55\u800c\u8fdb\u6b65\uff1a<\/p>\n
\u9762\u5411\u672a\u6765\u7684\u67b6\u6784\uff1a<\/strong><\/p>\n
1. AI\u96c6\u6210<\/strong><\/p>\n
– \u667a\u80fd\u8f6c\u7801<\/p>\n
– \u5185\u5bb9\u611f\u77e5\u5904\u7406<\/p>\n
– \u81ea\u52a8\u5316\u8d28\u91cf\u63d0\u5347<\/p>\n
2. \u53ef\u6269\u5c55\u6027\u7279\u5f81<\/strong><\/p>\n
– \u5fae\u670d\u52a1\u67b6\u6784<\/p>\n
– \u5bb9\u5668\u7f16\u6392<\/p>\n
– \u52a8\u6001\u8d44\u6e90\u6c60<\/p>\n
3. \u9ad8\u7ea7\u534f\u8bae<\/strong><\/p>\n
– AV1\u7f16\u7801\u652f\u6301<\/p>\n
– WebRTC\u4f18\u5316<\/p>\n
– \u4f4e\u5ef6\u8fdf\u6d41\u5a92\u4f53<\/p>\n
\u9999\u6e2f\u4f5c\u4e3a\u6280\u672f\u4e2d\u5fc3\u7684\u6218\u7565\u5730\u4f4d\uff0c\u7ed3\u5408\u5148\u8fdb\u7684GPU\u57fa\u7840\u8bbe\u65bd\uff0c\u4e3a\u5176\u63d0\u4f9b\u4e86\u7406\u60f3\u7684\u4e0b\u4e00\u4ee3\u89c6\u9891\u5904\u7406\u9700\u6c42\u6761\u4ef6\u3002\u5bf9\u6280\u672f\u521b\u65b0\u548c\u57fa\u7840\u8bbe\u65bd\u53d1\u5c55\u7684\u5173\u6ce8\u786e\u4fdd\u4e86\u89c6\u9891\u5904\u7406\u80fd\u529b\u7684\u6301\u7eed\u589e\u957f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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