{"id":120323,"date":"2026-10-31T12:32:52","date_gmt":"2026-10-31T04:32:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/120323.html"},"modified":"2026-10-31T12:32:52","modified_gmt":"2026-10-31T04:32:52","slug":"%e7%94%a8-rust-%e6%90%ad%e5%bb%ba%e8%bf%9c%e7%a8%8b%e4%b8%89%e7%bb%b4%e5%b9%b3%e5%8f%b0%ef%bc%9athree-js-cesium-webrtc-%e7%9a%84%e5%b7%a5%e7%a8%8b%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/120323.html","title":{"rendered":"\u7528 Rust \u642d\u5efa\u8fdc\u7a0b\u4e09\u7ef4\u5e73\u53f0\uff1aThree.js \/ Cesium + WebRTC \u7684\u5de5\u7a0b\u5b9e\u8df5"},"content":{"rendered":"

\u4e00\u3001\u201c\u7528 Rust \u5b9e\u73b0\u201d\u5230\u5e95\u6307\u54ea\u4e00\u5c42？<\/h3>\n

\u6280\u672f\u8def\u7ebf：Rust + Axum + Tokio + GPU Chromium + \u786c\u4ef6\u7f16\u7801 + WebRTC \u201cRust \u7248\u201d\u81f3\u5c11\u5305\u542b\u4e09\u79cd\u4e0d\u540c\u7684\u8def\u7ebf，\u4e0d\u80fd\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n\n\u8def\u7ebf\u6539\u9020\u8303\u56f4\u5bf9\u5df2\u6709\u9879\u76ee\u7684\u5f71\u54cd<\/tr>\n\n\n\n\n
A：Rust \u63a7\u5236\u5c42<\/td>\nRust \u7ba1\u7406\u4f1a\u8bdd\u3001\u5bb9\u91cf\u3001\u6d4f\u89c8\u5668\u548c\u6d41\u9001\u5b9e\u4f8b；\u5a92\u4f53\u590d\u7528 Selkies<\/td>\nThree.js \/ Cesium \u9875\u9762\u57fa\u672c\u4fdd\u7559，\u4f18\u5148\u9a8c\u8bc1<\/td>\n<\/tr>\n
B：Rust \u63a7\u5236\u5c42 + \u81ea\u5b9a\u4e49\u5a92\u4f53\u5c42<\/td>\n\u4fdd\u7559 Chromium，\u4f7f\u7528 Rust \u7ba1\u7406\u91c7\u96c6\u3001\u7f16\u7801\u4e0e WebRTC<\/td>\n\u9700\u5efa\u8bbe\u8f93\u5165\u534f\u8bae\u3001\u4fe1\u4ee4\u548c\u5a92\u4f53\u53cd\u9988\u95ed\u73af<\/td>\n<\/tr>\n
C：Rust \u539f\u751f\u4e09\u7ef4\u5f15\u64ce<\/td>\n\u4f7f\u7528 wgpu \u7b49\u91cd\u5efa\u6e32\u67d3\u6838\u5fc3，\u518d\u63a5\u5165\u8fdc\u7a0b\u6d41\u9001<\/td>\n\u539f\u6709\u573a\u666f\u3001\u6750\u8d28\u3001GIS \u80fd\u529b\u4e0e\u4ea4\u4e92\u9700\u8981\u91cd\u65b0\u9002\u914d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u672c\u6587\u4e3b\u63a8 A，\u8be6\u7ec6\u8ba8\u8bba B；C \u662f\u65b0\u5efa\u6e32\u67d3\u4ea7\u54c1\u65f6\u7684\u53e6\u4e00\u9879\u5de5\u7a0b\u3002<\/p>\n

wgpu \u662f\u8de8\u5e73\u53f0 Rust \u56fe\u5f62 API，\u53ef\u4ee5\u9762\u5411\u539f\u751f\u548c\u6d4f\u89c8\u5668\u540e\u7aef，\u4f46\u5b83\u4e0d\u662f\u80fd\u591f\u76f4\u63a5\u8fd0\u884c CesiumJS \u9875\u9762\u6216 Three.js \u63d2\u4ef6\u7684\u5bb9\u5668\u3002\u5c06\u5df2\u6709\u5e94\u7528\u6362\u6210 wgpu，\u5c5e\u4e8e\u6e32\u67d3\u5c42\u8fc1\u79fb，\u4e0d\u662f\u66ff\u6362\u4e00\u4e2a\u540e\u7aef\u6846\u67b6\u300215<\/p>\n

\u540c\u6837，Rust \u5199\u63a7\u5236\u670d\u52a1\u4e0d\u7b49\u4e8e\u628a\u670d\u52a1\u5668\u4e0a\u7684 JavaScript \u81ea\u52a8\u7f16\u8bd1\u6210 Wasm，\u4e5f\u4e0d\u4f1a\u81ea\u52a8\u6539\u53d8\u663e\u5361\u7684\u7ed8\u5236\u80fd\u529b\u3002<\/p>\n

\u4e8c\u3001\u63a8\u8350\u67b6\u6784：\u628a\u201c\u7ba1\u7406\u4f1a\u8bdd\u201d\u548c\u201c\u53d1\u9001\u753b\u9762\u201d\u5206\u5f00<\/h3>\n

\u5efa\u8bae\u5c06\u5e73\u53f0\u62c6\u6210\u4e24\u4e2a\u804c\u8d23\u660e\u786e\u7684\u90e8\u5206\u3002<\/p>\n

**\u63a7\u5236\u5c42：**\u6d4f\u89c8\u5668\u4e1a\u52a1 UI \u901a\u8fc7 HTTPS \u8c03\u7528 Axum；Rust \u670d\u52a1\u9274\u6743\u3001\u68c0\u67e5\u914d\u989d\u3001\u9009\u62e9 Worker\u3001\u8bb0\u5f55\u4f1a\u8bdd\u548c\u751f\u6210\u77ed\u671f\u8bbf\u95ee\u51ed\u8bc1\u3002Worker \u518d\u542f\u52a8\u5bf9\u5e94\u663e\u793a\u4f1a\u8bdd\u3001Chromium \u548c\u6d41\u9001\u8fdb\u7a0b\u3002<\/p>\n

**\u5a92\u4f53\u5c42：**GPU \u751f\u6210\u753b\u9762，\u91c7\u96c6\u7ec4\u4ef6\u4ea4\u7ed9\u786c\u4ef6\u7f16\u7801\u5668，\u7f16\u7801\u6d41\u901a\u8fc7 WebRTC \u5230\u8fbe\u7528\u6237\u6d4f\u89c8\u5668；\u64cd\u4f5c\u6cbf\u8f93\u5165\u901a\u9053\u8fd4\u56de\u3002\u5a92\u4f53\u4e0d\u5e94\u9ed8\u8ba4\u7ed5\u884c\u4e2d\u592e\u4e1a\u52a1 API \u670d\u52a1\u3002<\/p>\n\n\u6a21\u5757\u5efa\u8bae\u9009\u62e9\u804c\u8d23\u8fb9\u754c<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n
\u672c\u5730\u4e1a\u52a1 UI<\/td>\nVue \/ React + TypeScript<\/td>\n\u8868\u683c\u3001\u641c\u7d22\u3001\u83dc\u5355\u3001\u8868\u5355\u4e0e\u6743\u9650\u4ea4\u4e92<\/td>\n<\/tr>\n
API \u4e0e\u63a7\u5236\u670d\u52a1<\/td>\nAxum + Tokio<\/td>\n\u4f1a\u8bdd\u521b\u5efa\u3001\u67e5\u8be2\u3001\u5173\u95ed\u3001\u72b6\u6001\u901a\u77e5<\/td>\n<\/tr>\n
\u6570\u636e\u4e0e\u72b6\u6001<\/td>\nSQLx + PostgreSQL；\u6309\u9700\u4f7f\u7528 redis-rs<\/td>\n\u6301\u4e45\u5316\u3001\u77ed\u671f\u4f1a\u8bdd\u72b6\u6001\u4e0e\u8282\u70b9\u5fc3\u8df3<\/td>\n<\/tr>\n
Worker \u5185\u90e8\u63a5\u53e3<\/td>\n\u5c0f\u89c4\u6a21\u53ef\u7528 HTTPS，\u89c4\u6a21\u5316\u8bc4\u4f30 tonic<\/td>\n\u8282\u70b9\u63a7\u5236，\u4e0d\u7528\u4e8e\u642c\u8fd0\u6bcf\u5e27\u50cf\u7d20<\/td>\n<\/tr>\n
\u6d4f\u89c8\u5668\u81ea\u52a8\u5316<\/td>\nchromiumoxide \u6216\u53d7\u63a7 CDP<\/td>\n\u6253\u5f00\u9875\u9762\u3001\u68c0\u67e5\u5c31\u7eea\u3001\u7ba1\u7406\u6d4f\u89c8\u5668<\/td>\n<\/tr>\n
\u4e09\u7ef4\u6267\u884c<\/td>\nGPU Chromium + \u73b0\u6709\u5f15\u64ce<\/td>\n\u771f\u6b63\u6267\u884c Three.js \/ Cesium<\/td>\n<\/tr>\n
\u7b2c\u4e00\u9636\u6bb5\u5a92\u4f53<\/td>\nSelkies + pixelflux + NVENC<\/td>\n\u590d\u7528\u91c7\u96c6\u3001\u7f16\u7801\u3001\u8f93\u5165\u548c\u6d41\u9001<\/td>\n<\/tr>\n
\u540e\u7eed\u5a92\u4f53\u9009\u9879<\/td>\ngstreamer-rs + rswebrtc，\u6216 str0m \/ webrtc<\/td>\n\u6839\u636e\u5b9a\u5236\u7a0b\u5ea6\u9009\u4e00\u6761\u8def\u7ebf<\/td>\n<\/tr>\n
\u7a7f\u900f\u4e0e\u4e2d\u7ee7<\/td>\ncoturn<\/td>\n\u4e3a\u4e0d\u80fd\u76f4\u8fde\u7684\u7f51\u7edc\u63d0\u4f9b\u4e2d\u7ee7<\/td>\n<\/tr>\n
\u8bca\u65ad<\/td>\ntracing + \u6307\u6807\u91c7\u96c6<\/td>\n\u5173\u8054\u4f1a\u8bdd\u3001\u5e27\u3001\u7f51\u7edc\u8def\u5f84\u548c\u8d44\u6e90\u5360\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Axum \u57fa\u4e8e Tokio \/ Hyper，\u5e76\u53ef\u4f7f\u7528 Tower \u4f53\u7cfb；SQLx\u3001tonic\u3001tracing \u548c redis-rs \u5206\u522b\u63d0\u4f9b Rust \u6570\u636e\u8bbf\u95ee\u3001RPC\u3001\u7ed3\u6784\u5316\u8bca\u65ad\u4e0e Redis \u5ba2\u6237\u7aef\u80fd\u529b\u3002\u4e0a\u8868\u662f\u804c\u8d23\u5212\u5206\u5efa\u8bae，\u4e0d\u662f\u5fc5\u987b\u5168\u90e8\u5f15\u5165\u7684\u4f9d\u8d56\u6e05\u5355\u300212224<\/p>\n

\u7b2c\u4e00\u7248\u4e0d\u9700\u8981\u540c\u65f6\u63a5\u5165 Selkies\u3001str0m\u3001webrtc-rs \u548c webrtcsink\u3002\u5b83\u4eec\u4e0d\u662f\u8d8a\u591a\u8d8a\u597d，\u800c\u662f\u4e0d\u540c\u5c42\u7ea7\u7684\u66ff\u4ee3\u65b9\u6848\u3002<\/p>\n

\u4e09\u3001\u4e3a\u4ec0\u4e48\u7b2c\u4e00\u9636\u6bb5\u4ecd\u7136\u4fdd\u7559 Selkies？<\/h3>\n

Selkies \u7684\u5f53\u524d\u67b6\u6784\u5df2\u7ecf\u4f7f\u7528 Rust \u6269\u5c55 pixelflux \u5904\u7406\u91c7\u96c6\u4e0e\u7f16\u7801，\u4f46\u5916\u56f4\u670d\u52a1\u4ecd\u5305\u542b Python\u3002\u56e0\u6b64，\u51c6\u786e\u8868\u8ff0\u662f\u201cRust \u4e3b\u5bfc\u7684\u5e73\u53f0\u201d，\u800c\u4e0d\u662f\u201c\u6574\u5957\u7cfb\u7edf\u7eaf Rust\u201d\u30027<\/p>\n

\u5b83\u9ed8\u8ba4\u4f7f\u7528 WebSocket \u4f20\u8f93，WebRTC \u9700\u8981\u663e\u5f0f\u542f\u7528，\u4f8b\u5982 –mode=webrtc\u3002\u751f\u4ea7\u90e8\u7f72\u8fd8\u8981\u56fa\u5b9a\u955c\u50cf\u6458\u8981\u548c\u914d\u5957\u7248\u672c，\u4e0d\u80fd\u628a\u201c\u9ed8\u8ba4\u542f\u52a8\u6210\u529f\u201d\u5f53\u4f5c\u201cWebRTC \u5df2\u7ecf\u5de5\u4f5c\u201d\u30026<\/p>\n

\u9009\u62e9\u590d\u7528\u5b83，\u662f\u4e3a\u4e86\u907f\u514d\u7b2c\u4e00\u9636\u6bb5\u540c\u65f6\u5efa\u8bbe\u6d4f\u89c8\u5668\u8f93\u5165\u3001\u526a\u8d34\u677f\u7b56\u7565\u3001\u753b\u9762\u91c7\u96c6\u3001\u7f16\u7801\u9002\u914d\u3001\u6d4f\u89c8\u5668\u64ad\u653e\u548c\u65ad\u7ebf\u6062\u590d\u3002Rust \u7684\u9996\u8981\u5de5\u4f5c\u662f\u7ba1\u597d\u8fd9\u4e9b\u5b9e\u4f8b，\u800c\u4e0d\u662f\u4e3a\u4e86\u7edf\u4e00\u8bed\u8a00\u628a\u73b0\u6210\u80fd\u529b\u5168\u90e8\u63a8\u5012\u3002<\/p>\n

3.1 \u65e0\u7269\u7406\u663e\u793a\u5668，\u4e0d\u7b49\u4e8e\u4f7f\u7528 Headless Chromium<\/h4>\n

\u8d70\u684c\u9762\u91c7\u96c6\u8def\u7ebf\u65f6，\u5e94\u7528\u753b\u9762\u5fc5\u987b\u51fa\u73b0\u5728\u91c7\u96c6\u5668\u8bfb\u53d6\u7684\u56fe\u5f62\u4f1a\u8bdd\u91cc\u3002\u670d\u52a1\u5668\u53ef\u4ee5\u6ca1\u6709\u663e\u793a\u5668，\u4f46 Chromium \u901a\u5e38\u5e94\u8fd0\u884c\u5728\u76f8\u5e94\u865a\u62df\u663e\u793a\u73af\u5883\u4e2d\u30027<\/p>\n

chromiumoxide \u63d0\u4f9b Chrome DevTools Protocol \u7684 Rust API，\u5176\u6709\u7a97\u53e3\u542f\u52a8\u65b9\u5f0f\u5305\u542b BrowserConfig::builder().with_head()\u3002\u8fd9\u53ef\u4ee5\u66ff\u4ee3\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\u5c42\u4e2d\u7684 Node.js \u4ee3\u7801，\u4f46\u5e76\u4e0d\u81ea\u52a8\u914d\u7f6e\u663e\u793a\u670d\u52a1\u5668\u3001\u9a71\u52a8\u6216\u786c\u4ef6\u7f16\u7801\u5668\u30025<\/p>\n

Headless Chrome \u672c\u8eab\u4e5f\u53ef\u80fd\u4f7f\u7528 GPU，\u4f46\u201cGPU \u53ef\u7528\u201d\u548c\u201c\u753b\u9762\u8fdb\u5165\u4e86\u684c\u9762\u91c7\u96c6\u94fe\u8def\u201d\u662f\u4e24\u56de\u4e8b\u3002\u9700\u8981\u68c0\u67e5\u5b9e\u9645\u56fe\u5f62\u540e\u7aef，\u4e0d\u80fd\u53ea\u770b\u542f\u52a8\u53c2\u6570\u300220<\/p>\n

3.2 \u6d4f\u89c8\u5668\u63a7\u5236\u63a5\u53e3\u4e0d\u662f\u4e1a\u52a1 API<\/h4>\n

CDP \u53ea\u5e94\u66b4\u9732\u5728\u53d7\u63a7\u5185\u90e8\u901a\u9053\u3002\u5ba2\u6237\u7aef\u63d0\u4ea4\u7684\u5e94\u662f\u5141\u8bb8\u8bbf\u95ee\u7684 scene_id，\u7531\u670d\u52a1\u7aef\u6620\u5c04\u5230\u5df2\u6279\u51c6\u7684\u9875\u9762，\u800c\u4e0d\u662f\u5141\u8bb8\u7528\u6237\u4f20\u5165\u4efb\u610f URL\u3001JavaScript \u6216\u542f\u52a8\u53c2\u6570\u3002<\/p>\n

\u8fd9\u4e9b\u662f\u5e73\u53f0\u8bbe\u8ba1\u8981\u6c42：\u5426\u5219\u8fdc\u7a0b\u6d4f\u89c8\u5668\u53ef\u80fd\u53d8\u6210\u5185\u7f51\u8bbf\u95ee\u5165\u53e3，\u6216\u8005\u88ab\u7528\u4e8e\u6267\u884c\u8d85\u51fa\u4e1a\u52a1\u6743\u9650\u7684\u64cd\u4f5c\u3002<\/p>\n

\u56db\u3001Rust \u771f\u6b63\u503c\u5f97\u6295\u5165\u7684\u5730\u65b9：\u4f1a\u8bdd\u751f\u547d\u5468\u671f<\/h3>\n

\u8fdc\u7a0b\u4e09\u7ef4\u7684\u8d44\u6e90\u5355\u4f4d\u4e0d\u662f\u4e00\u6b21 HTTP \u8bf7\u6c42，\u800c\u662f\u4e00\u6bb5\u6301\u7eed\u8fd0\u884c\u7684\u4f1a\u8bdd\u3002<\/p>\n

\u5efa\u8bae\u660e\u786e\u4ee5\u4e0b\u72b6\u6001：<\/p>\n\n\u72b6\u6001\u542b\u4e49\u5bb9\u91cf\u5904\u7406<\/tr>\n\n\n\n\n\n\n\n
Requested<\/td>\n\u8bf7\u6c42\u5df2\u9274\u6743，\u7b49\u5f85\u8c03\u5ea6<\/td>\n\u5c1a\u672a\u542f\u52a8\u8d44\u6e90<\/td>\n<\/tr>\n
Allocating<\/td>\nWorker \u5df2\u9884\u7559\u5bb9\u91cf，\u6b63\u5728\u542f\u52a8<\/td>\n\u5bb9\u91cf\u5df2\u7ecf\u5360\u7528<\/td>\n<\/tr>\n
Ready \/ Active<\/td>\n\u53ef\u8fde\u63a5\u6216\u6b63\u5728\u4ea4\u4e92<\/td>\n\u6301\u7eed\u5360\u7528<\/td>\n<\/tr>\n
Reconnecting<\/td>\n\u6682\u65f6\u65ad\u7ebf，\u4fdd\u7559\u4e1a\u52a1\u72b6\u6001<\/td>\n\u5bbd\u9650\u671f\u5185\u4ecd\u5360\u7528<\/td>\n<\/tr>\n
Draining<\/td>\n\u505c\u6b62\u63a5\u6536\u65b0\u64cd\u4f5c，\u6b63\u5728\u9000\u51fa<\/td>\n\u4e0d\u5e94\u63d0\u524d\u91ca\u653e<\/td>\n<\/tr>\n
Closed \/ Failed<\/td>\n\u786e\u8ba4\u9000\u51fa\u6216\u5b8c\u6210\u6545\u969c\u56de\u6536<\/td>\n\u7ecf\u5bf9\u8d26\u540e\u91ca\u653e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8fd9\u4e9b\u72b6\u6001\u662f\u5efa\u8bae\u7684\u6570\u636e\u6a21\u578b，\u4e0d\u662f Selkies \u81ea\u5e26\u7684 API \u540d\u79f0\u3002<\/p>\n

\u6700\u5e38\u89c1\u7684\u9519\u8bef\u662f：\u6536\u5230\u201c\u505c\u6b62\u4f1a\u8bdd\u201d\u8bf7\u6c42\u540e，\u6570\u636e\u5e93\u7acb\u523b\u6807\u8bb0\u91ca\u653e，\u5b9e\u9645 Chromium \u548c\u7f16\u7801\u8fdb\u7a0b\u5374\u8fd8\u5728\u8fd0\u884c\u3002\u4e0b\u4e00\u4f4d\u7528\u6237\u53c8\u88ab\u5206\u914d\u8fdb\u6765，\u4e8e\u662f\u8c03\u5ea6\u8d26\u9762\u6ca1\u6709\u8d85\u5356，GPU \u5374\u5df2\u7ecf\u8d85\u8f7d\u3002<\/p>\n

\u5efa\u8bae\u7531 Worker \u4f5c\u4e3a\u672c\u673a\u8d44\u6e90\u7684\u6700\u7ec8\u786e\u8ba4\u65b9，\u63a7\u5236\u670d\u52a1\u8d1f\u8d23\u610f\u56fe\u548c\u79df\u7ea6\u3002\u8de8\u8282\u70b9\u64cd\u4f5c\u5e26\u4e0a\u4f1a\u8bdd ID\u3001\u64cd\u4f5c ID \u548c\u9012\u589e\u4ee3\u6b21，\u65e7\u4ee3\u6b21\u7684\u505c\u6b62\u8bf7\u6c42\u4e0d\u80fd\u5173\u95ed\u65b0\u5b9e\u4f8b\u3002<\/p>\n

4.1 RAII \u9002\u5408\u7ba1\u7406\u4ee4\u724c，\u4f46\u4e0d\u80fd\u66ff\u4ee3\u8fdb\u7a0b\u56de\u6536<\/h4>\n

Tokio \u7684 Semaphore \u53ef\u4ee5\u9650\u5236\u5e76\u53d1\u5360\u7528，OwnedSemaphorePermit \u5728\u91ca\u653e\u65f6\u5f52\u8fd8\u540d\u989d\u30023<\/p>\n

\u4e0b\u9762\u662f\u5355\u8fdb\u7a0b\u5bb9\u91cf\u9884\u7559\u793a\u4f8b，\u4f9d\u8d56 Tokio 1.x \u7684 sync \u529f\u80fd：<\/p>\n

use<\/span> std::<\/span>sync::<\/span><\/span>Arc<\/span>;<\/span>
\nuse<\/span> tokio::<\/span>sync::<\/span><\/span>{<\/span>
\n OwnedSemaphorePermit<\/span>,<\/span> Semaphore<\/span>,<\/span> TryAcquireError<\/span>,<\/span>
\n}<\/span>;<\/span><\/p>\n

#[derive(Clone)]<\/span>
\npub<\/span> struct<\/span> Budget<\/span>(<\/span>Arc<\/span><<\/span>Semaphore<\/span>><\/span>)<\/span>;<\/span><\/p>\n

#[must_use = "\u4ee4\u724c\u5fc5\u987b\u7531\u4f1a\u8bdd\u6301\u6709"<\/span>]<\/span>
\npub<\/span> struct<\/span> Reservation<\/span> {<\/span>
\n _permit:<\/span> OwnedSemaphorePermit<\/span>,<\/span>
\n}<\/span><\/p>\n

impl<\/span> Budget<\/span> {<\/span>
\n pub<\/span> fn<\/span> new<\/span>(<\/span>slots:<\/span> usize<\/span>)<\/span> -><\/span> Result<\/span><<\/span>Self<\/span>,<\/span> &<\/span>'static<\/span> str<\/span>><\/span> {<\/span>
\n if<\/span> slots ==<\/span> 0<\/span> ||<\/span> slots ><\/span> Semaphore<\/span>::<\/span>MAX_PERMITS<\/span> {<\/span>
\n return<\/span> Err<\/span>(<\/span>"slots \u8d85\u51fa\u5141\u8bb8\u8303\u56f4"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n Ok<\/span>(<\/span>Self<\/span>(<\/span>Arc<\/span>::<\/span>new<\/span>(<\/span>Semaphore<\/span>::<\/span>new<\/span>(<\/span>slots)<\/span>)<\/span>)<\/span>)<\/span>
\n }<\/span><\/p>\n

pub<\/span> fn<\/span> try_reserve<\/span>(<\/span>&<\/span>self<\/span>)<\/span>
\n -><\/span> Result<\/span><<\/span>Reservation<\/span>,<\/span> TryAcquireError<\/span>><\/span>
\n {<\/span>
\n self<\/span>.<\/span>0<\/span>.<\/span>clone<\/span>(<\/span>)<\/span>.<\/span>try_acquire_owned<\/span>(<\/span>)<\/span>
\n .<\/span>map<\/span>(<\/span>|<\/span>permit|<\/span><\/span> Reservation<\/span> {<\/span> _permit:<\/span> permit }<\/span>)<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u6b63\u786e\u7684\u6301\u6709\u8303\u56f4\u662f\u4f1a\u8bdd，\u800c\u4e0d\u662f\u521b\u5efa\u4f1a\u8bdd\u7684\u8bf7\u6c42\u51fd\u6570\u3002<\/p>\n

\u4ee4\u724c\u9700\u8981\u8de8\u8fc7\u201c\u542f\u52a8\u3001\u5c31\u7eea\u3001\u8fd0\u884c\u3001\u5173\u95ed\u201d\u5168\u8fc7\u7a0b\u3002\u4ec5\u5f53 Worker \u786e\u8ba4\u5bf9\u5e94\u8d44\u6e90\u5df2\u7ecf\u9000\u51fa，\u624d\u80fd\u56de\u6536\u540d\u989d\u3002\u4e0a\u8ff0\u4ee3\u7801\u53ea\u5c55\u793a\u672c\u5730\u9884\u7b97，\u4e0d\u5305\u542b\u5206\u5e03\u5f0f\u79df\u7ea6，\u4e5f\u4e0d\u4fdd\u8bc1\u6d4f\u89c8\u5668\u8fdb\u7a0b\u968f\u4ee4\u724c\u6790\u6784\u800c\u7ed3\u675f\u3002<\/p>\n

\u8fdb\u7a0b\u5d29\u6e83\u540e，\u5185\u5b58\u91cc\u7684\u4fe1\u53f7\u91cf\u4f1a\u6d88\u5931，\u5916\u90e8\u5bb9\u5668\u5374\u53ef\u80fd\u7ee7\u7eed\u8fd0\u884c，\u56e0\u6b64\u91cd\u542f\u65f6\u8fd8\u5fc5\u987b\u626b\u63cf\u6b8b\u7559\u5b9e\u4f8b\u3001\u6838\u5bf9\u4ee3\u6b21\u548c\u91cd\u5efa\u8d44\u6e90\u8d26\u3002<\/p>\n

4.2 \u963b\u585e\u91c7\u96c6\u4e0d\u8981\u5360\u4f4f\u5f02\u6b65\u6267\u884c\u5668<\/h4>\n

\u5efa\u8bae\u8ba9 Tokio \u8d1f\u8d23\u7f51\u7edc\u3001\u8d85\u65f6\u3001\u5fc3\u8df3\u548c\u547d\u4ee4\u8c03\u5ea6，\u957f\u671f\u963b\u585e\u7684\u91c7\u96c6\u6216\u7f16\u7801\u5faa\u73af\u4f7f\u7528\u4e13\u95e8\u7ebf\u7a0b，\u6709\u9650 CPU \u4efb\u52a1\u518d\u4f7f\u7528\u53d7\u9650\u7684\u963b\u585e\u7ebf\u7a0b\u6c60\u3002<\/p>\n

Tokio \u5b98\u65b9\u660e\u786e\u63d0\u9192：CPU \u5bc6\u96c6\u4efb\u52a1\u9700\u8981\u9650\u5236\u5e76\u884c\u5ea6；\u5df2\u7ecf\u5f00\u59cb\u6267\u884c\u7684 spawn_blocking \u4efb\u52a1\u4e0d\u80fd\u9760 abort() \u5f3a\u884c\u7ec8\u6b62\u30024<\/p>\n

\u56e0\u6b64，\u53d6\u6d88\u4f1a\u8bdd\u8981\u4f20\u9012\u534f\u4f5c\u5f0f\u9000\u51fa\u4fe1\u53f7，\u5e76\u7b49\u5f85\u5e95\u5c42\u505c\u6b62\u3002\u4e0d\u80fd\u628a\u201c\u53d6\u6d88\u4e86 Rust Future\u201d\u7b49\u540c\u4e8e\u201cGPU \u7f16\u7801\u5668\u5df2\u7ecf\u9000\u51fa\u201d\u3002<\/p>\n

\u4e94\u3001\u4f4e\u5ef6\u8fdf\u7684\u5173\u952e：\u4e0d\u8981\u8ba4\u771f\u5904\u7406\u6bcf\u4e00\u5f20\u8fc7\u671f\u753b\u9762<\/h3>\n

\u5047\u8bbe\u4e09\u7ef4\u5e94\u7528\u6bcf\u79d2\u4ea7\u751f 60 \u5e27，\u800c\u7f16\u7801\u5668\u5728\u67d0\u4e2a\u65f6\u6bb5\u53ea\u80fd\u5904\u7406 40 \u5e27\u3002\u5982\u679c\u4f7f\u7528\u65e0\u754c\u961f\u5217，\u7cfb\u7edf\u53ef\u80fd\u4e00\u76f4\u4fdd\u6301\u8f83\u9ad8\u541e\u5410，\u4f46\u7528\u6237\u770b\u5230\u7684\u90fd\u662f\u8d8a\u6765\u8d8a\u4e45\u4e4b\u524d\u7684\u753b\u9762\u3002<\/p>\n

\u5bf9\u4ea4\u4e92\u5f0f\u4e09\u7ef4\u800c\u8a00，\u6700\u65b0\u753b\u9762\u901a\u5e38\u6bd4\u5b8c\u6574\u4fdd\u5b58\u4e2d\u95f4\u8fc7\u7a0b\u91cd\u8981\u3002<\/p>\n

Tokio \u7684 watch \u901a\u9053\u53ea\u4fdd\u7559\u6700\u65b0\u503c，\u9002\u5408\u6f14\u793a\u201c\u6700\u65b0\u539f\u59cb\u5e27\u8986\u76d6\u5c1a\u672a\u6d88\u8d39\u7684\u65e7\u5e27\u201d\u3002\u5b83\u4e0d\u662f\u901a\u7528\u89c6\u9891\u4e22\u5305\u7b56\u7565\u30022<\/p>\n

use<\/span> std::<\/span><\/span>{<\/span>sync::<\/span><\/span>Arc<\/span>,<\/span> time::<\/span><\/span>Instant<\/span>}<\/span>;<\/span>
\nuse<\/span> tokio::<\/span>sync::<\/span><\/span>watch;<\/span><\/p>\n

pub<\/span> struct<\/span> RawFrame<\/span> {<\/span>
\n pub<\/span> sequence:<\/span> u64<\/span>,<\/span>
\n pub<\/span> captured_at:<\/span> Instant<\/span>,<\/span>
\n pub<\/span> pixels:<\/span> Arc<\/span><<\/span>[<\/span>u8<\/span>]<\/span>><\/span>,<\/span>
\n}<\/span><\/p>\n

pub<\/span> type<\/span> FrameTx<\/span> =<\/span> watch::<\/span><\/span>Sender<\/span><<\/span>Option<\/span><<\/span>Arc<\/span><<\/span>RawFrame<\/span>>><\/span>><\/span>;<\/span>
\npub<\/span> type<\/span> FrameRx<\/span> =<\/span> watch::<\/span><\/span>Receiver<\/span><<\/span>Option<\/span><<\/span>Arc<\/span><<\/span>RawFrame<\/span>>><\/span>><\/span>;<\/span><\/p>\n

pub<\/span> fn<\/span> latest_frame_channel<\/span>(<\/span>)<\/span> -><\/span> (<\/span>FrameTx<\/span>,<\/span> FrameRx<\/span>)<\/span> {<\/span>
\n watch::<\/span><\/span>channel<\/span>(<\/span>None<\/span>)<\/span>
\n}<\/span><\/p>\n

pub<\/span> fn<\/span> publish_latest<\/span>(<\/span>tx:<\/span> &<\/span>FrameTx<\/span>,<\/span> frame:<\/span> RawFrame<\/span>)<\/span> {<\/span>
\n tx.<\/span>send_replace<\/span>(<\/span>Some<\/span>(<\/span>Arc<\/span>::<\/span>new<\/span>(<\/span>frame)<\/span>)<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\u6d88\u8d39\u7aef\u8bfb\u53d6\u540e，\u5e94\u5148\u514b\u9686 Arc \u5e76\u91ca\u653e watch \u501f\u7528，\u518d\u8fdb\u884c\u8017\u65f6\u5de5\u4f5c；\u4e0d\u8981\u6301\u6709 borrow_and_update() \u8fd4\u56de\u7684\u501f\u7528\u8de8\u8d8a .await\u30022<\/p>\n

\u8fd8\u9700\u8981\u660e\u786e\u4e09\u4e2a\u8fb9\u754c\u3002<\/p>\n

**\u7b2c\u4e00，\u8fd9\u91cc\u8986\u76d6\u7684\u662f\u5c1a\u672a\u7f16\u7801\u7684\u539f\u59cb\u5e27\u3002**H.264\u3001AV1 \u7b49\u538b\u7f29\u7801\u6d41\u5b58\u5728\u5e27\u95f4\u4f9d\u8d56，\u4e0d\u80fd\u628a\u7f16\u7801\u540e\u7684\u4efb\u610f\u4e00\u5e27\u90fd\u5f53\u6210\u53ef\u4ee5\u72ec\u7acb\u4e22\u5f03\u7684\u6570\u636e\u3002<\/p>\n

**\u7b2c\u4e8c，Arc \u4e0d\u662f GPU \u96f6\u62f7\u8d1d\u3002**\u5b83\u53ea\u8ba9\u591a\u4e2a\u4f7f\u7528\u8005\u5171\u4eab\u540c\u4e00\u5757 CPU \u7f13\u51b2\u533a，\u4e0d\u80fd\u6d88\u9664\u4e4b\u524d\u5df2\u7ecf\u53d1\u751f\u7684 GPU \u56de\u8bfb\u3002<\/p>\n

**\u7b2c\u4e09，\u4ecd\u8981\u9650\u5236\u6d88\u8d39\u7aef\u7684\u5728\u9014\u4efb\u52a1\u3002**\u5373\u4f7f\u901a\u9053\u53ea\u4fdd\u5b58\u4e00\u5e27，\u5982\u679c\u6bcf\u53d6\u51fa\u4e00\u5e27\u5c31\u65e0\u9650\u542f\u52a8\u7f16\u7801\u4efb\u52a1，\u5916\u90e8\u961f\u5217\u4ecd\u4f1a\u589e\u957f\u3002GPU \u8868\u9762\u7684\u590d\u7528\u8fd8\u8981\u7b49\u5f85\u786c\u4ef6\u5904\u7406\u5b8c\u6210，\u4e0d\u80fd\u4ec5\u6839\u636e Rust \u5f15\u7528\u6570\u5224\u65ad\u3002<\/p>\n

\u516d\u3001\u91c7\u96c6\u4e0e\u7f16\u7801：Rust \u5916\u58f3\u4e4b\u5916，\u6570\u636e\u5230\u5e95\u642c\u4e86\u51e0\u6b21？<\/h3>\n

6.1 \u4e00\u6b21\u539f\u59cb\u5e27\u642c\u8fd0\u5c31\u53ef\u80fd\u63a5\u8fd1 500 MB\/s<\/h4>\n

\u4ee5 1080p\u300160 FPS\u30014 \u5b57\u8282\/\u50cf\u7d20\u4e3a\u4f8b：<\/p>\n

1920 \u00d7 1080 \u00d7 4 \u00d7 60
\n= 497,664,000 \u5b57\u8282\/\u79d2
\n\u2248 497.7 MB\/s<\/p>\n

4K \u5bf9\u5e94\u7ea6 1,990.7 MB\/s\u3002\u8fd9\u91cc\u662f\u5b8c\u6574\u539f\u59cb\u5e27\u7684\u6570\u636e\u7387，\u4e0d\u662f\u6700\u540e\u7684\u89c6\u9891\u7801\u7387，\u4e5f\u4e0d\u662f\u6d4b\u5f97\u7684 PCIe \u541e\u5410\u3002<\/p>\n

\u5982\u679c\u5e27\u5148\u8bfb\u56de CPU，\u518d\u4e0a\u4f20\u7ed9\u786c\u4ef6\u7f16\u7801\u5668，\u642c\u8fd0\u91cf\u8fd8\u4f1a\u589e\u52a0\u3002Rust \u80fd\u5e2e\u52a9\u7ba1\u7406\u5185\u5b58\u548c\u751f\u547d\u5468\u671f，\u4f46\u65e0\u6cd5\u901a\u8fc7\u8bed\u8a00\u540d\u79f0\u6d88\u9664\u8fd9\u4e9b\u590d\u5236\u3002<\/p>\n

pixelflux \u7684 GPU \u91c7\u96c6\u8def\u5f84\u4f9d\u8d56\u663e\u793a\u540e\u7aef\u548c\u7f13\u51b2\u533a\u4e92\u64cd\u4f5c；GStreamer \u7684 nvh264enc \u652f\u6301\u5305\u62ec CUDA\u3001GL \u548c\u7cfb\u7edf\u5185\u5b58\u5728\u5185\u7684\u8f93\u5165\u5f62\u5f0f\u3002\u5e94\u6838\u67e5\u6700\u7ec8\u4f7f\u7528\u7684\u5185\u5b58\u7c7b\u578b，\u800c\u4e0d\u662f\u4ec5\u6839\u636e\u201c\u7f16\u7801\u5668\u53eb NVENC\u201d\u5c31\u65ad\u8a00\u5168\u94fe\u8def\u96f6\u62f7\u8d1d\u30028<\/p>\n

6.2 \u516c\u5f00\u7f16\u7801\u6570\u636e\u53ea\u80fd\u4f5c\u53c2\u8003<\/h4>\n

Epic \u5b98\u65b9\u62a5\u544a\u7684 H.264 \u8fd1\u4f3c\u7f16\u7801\u8017\u65f6，1080p \u4e3a 8.97 ms，4K \u4e3a 24.17 ms；\u6587\u6863\u5217\u51fa\u7684\u5bf9\u5e94\u6d4b\u8bd5 GPU \u4e3a RTX 3060\u300217<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u56fe 1：\u6839\u636e Epic \u5b98\u65b9\u6570\u636e\u7ed8\u5236\u3002\u4e0d\u662f Rust\u3001Selkies \u6216\u672c\u6587\u73af\u5883\u7684\u5b9e\u6d4b；\u4e0d\u80fd\u7531\u5355\u5e27\u7f16\u7801\u8017\u65f6\u76f4\u63a5\u63a8\u5bfc\u5e76\u53d1\u7528\u6237\u6570\u3002<\/p>\n

\u91c7\u8d2d\u65f6\u8981\u6838\u5bf9\u5177\u4f53\u578b\u53f7\u7684\u7f16\u7801\u80fd\u529b\u3001\u7f16\u7801\u5f15\u64ce\u548c\u4f1a\u8bdd\u9650\u5236\u3002NVIDIA \u7684\u5b98\u65b9\u77e9\u9635\u628a\u8fd9\u4e9b\u9879\u76ee\u5206\u522b\u5217\u51fa，\u663e\u5b58\u5927\u3001AI \u7b97\u529b\u9ad8，\u5e76\u4e0d\u7b49\u4e8e\u9002\u5408\u76ee\u6807\u8fdc\u7a0b\u56fe\u5f62\u8d1f\u8f7d\u300216<\/p>\n

\u5bf9\u4e8e PoC，\u53ef\u4ee5\u4ece H.264 \u5f00\u59cb\u9a8c\u8bc1；\u518d\u6839\u636e\u670d\u52a1\u7aef\u786c\u4ef6\u3001\u6d4f\u89c8\u5668\u89e3\u7801\u80fd\u529b\u548c\u7f51\u7edc\u6761\u4ef6\u8bc4\u4f30\u5176\u4ed6\u7f16\u7801\u3002\u76ee\u6807\u5e94\u662f\u53ef\u63a5\u53d7\u7684\u6e05\u6670\u5ea6\u4e0e\u5ef6\u8fdf，\u800c\u4e0d\u662f\u53ea\u8ffd\u6c42\u66f4\u9ad8\u538b\u7f29\u7387\u3002<\/p>\n

\u4e03\u3001\u81ea\u5df1\u505a Rust \u5a92\u4f53\u5c42，\u5e94\u8be5\u9009\u54ea\u6761\u8def\u7ebf？<\/h3>\n

7.1 \u4f18\u5148\u7ec4\u5408\u73b0\u6210\u5a92\u4f53\u80fd\u529b：gstreamer-rs + webrtcsink<\/h4>\n

gstreamer-rs \u662f GStreamer \u7684 Rust \u7ed1\u5b9a，\u4e0d\u662f\u7528 Rust \u91cd\u5199\u5168\u90e8 GStreamer \u548c\u9a71\u52a8\u3002\u5b83\u9002\u5408\u7528 Rust \u7ba1\u7406\u7ba1\u7ebf\u3001\u72b6\u6001\u548c\u9519\u8bef，\u540c\u65f6\u5229\u7528\u73b0\u6210\u5a92\u4f53\u63d2\u4ef6\u30029<\/p>\n

webrtcsink \u53ef\u4ee5\u628a\u5a92\u4f53\u901a\u8fc7 WebRTC \u53d1\u9001\u7ed9\u591a\u4e2a\u63a5\u6536\u7aef，\u914d\u5957\u9879\u76ee\u63d0\u4f9b\u4fe1\u4ee4\u4e0e\u6d4f\u89c8\u5668\u5ba2\u6237\u7aef\u63a5\u53e3\u300210<\/p>\n

\u6bd4\u8f83\u9002\u5408\u7684\u5206\u5de5\u662f：Rust \u7ba1\u63a7\u5236\u4e0e\u751f\u547d\u5468\u671f，GStreamer \u7ba1\u683c\u5f0f\u8f6c\u6362\u3001\u7f16\u7801\u534f\u5546\u3001\u4f20\u8f93\u548c\u53cd\u9988\u3002\u9700\u8981\u66f4\u7cbe\u7ec6\u63a7\u5236\u65f6，\u518d\u5411\u5e95\u5c42 webrtcbin \u6216\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0b\u6c89\u3002<\/p>\n

**\u4f46\u6709\u4e00\u4e2a\u5e76\u53d1\u9677\u9631：\u5b98\u65b9\u6587\u6863\u660e\u786e\u8bf4\u660e，\u5f53\u524d\u63a5\u6536\u7aef\u4e4b\u95f4\u4e0d\u5171\u4eab\u7f16\u7801\u3002**\u591a\u4e2a\u89c2\u4f17\u8fde\u63a5\u540c\u4e00\u4e2a webrtcsink，\u4e0d\u80fd\u76f4\u63a5\u6309\u7167\u201c\u4e00\u6b21\u7f16\u7801\u670d\u52a1\u6240\u6709\u4eba\u201d\u4f30\u7b97\u8d44\u6e90\u300211<\/p>\n

\u591a\u89c2\u4f17\u590d\u7528\u5e94\u5355\u72ec\u9a8c\u8bc1\u5df2\u6709\u7f16\u7801\u6d41\u8f93\u5165\u3001\u5171\u4eab\u7f16\u7801\u62d3\u6251\u6216 SFU \u8def\u7ebf，\u4e0d\u80fd\u770b\u5230\u201c\u652f\u6301\u591a\u4e2a\u6d88\u8d39\u8005\u201d\u5c31\u8ba4\u5b9a\u53ea\u6d88\u8017\u4e00\u8def NVENC\u3002<\/p>\n

\u521d\u6b65\u68c0\u67e5\u5b89\u88c5\u73af\u5883\u53ef\u4ee5\u4f7f\u7528：<\/p>\n

gst-inspect-1.0 webrtcsink
\ngst-inspect-1.0 nvh264enc<\/p>\n

\u8fd9\u53ea\u662f\u786e\u8ba4\u63d2\u4ef6\u4e0e\u53c2\u6570，\u4e0d\u662f GPU \u96f6\u62f7\u8d1d\u3001\u6d4f\u89c8\u5668\u4e92\u901a\u6216\u5b8c\u6574\u6d41\u9001\u5df2\u7ecf\u901a\u8fc7\u9a8c\u8bc1\u3002<\/p>\n

7.2 \u81ea\u5b9a\u4e49 WebRTC \u5f15\u64ce：str0m \u6216 webrtc<\/h4>\n\n\u9009\u62e9\u9002\u5408\u7684\u9700\u6c42\u5fc5\u987b\u81ea\u5df1\u8865\u9f50\u7684\u90e8\u5206<\/tr>\n\n\n\n\n
str0m<\/td>\n\u9700\u8981\u638c\u63e1\u4e8b\u4ef6\u5faa\u73af\u3001\u7f51\u7edc\u8c03\u5ea6\u548c RTP \u5904\u7406<\/td>\n\u9a71\u52a8 I\/O\u3001\u65f6\u95f4\u63a8\u8fdb\u3001\u5019\u9009\u5730\u5740\u6536\u96c6\u4e0e\u4e1a\u52a1\u96c6\u6210<\/td>\n<\/tr>\n
webrtc crate<\/td>\n\u5e0c\u671b\u4f7f\u7528\u5f02\u6b65 PeerConnection \u98ce\u683c API<\/td>\n\u4fe1\u4ee4\u3001\u91c7\u96c6\u7f16\u7801\u3001\u8f93\u5165\u534f\u8bae\u53ca\u5bb9\u91cf\u63a7\u5236<\/td>\n<\/tr>\n
webrtcsink<\/td>\n\u5e0c\u671b\u5c3d\u5feb\u7ec4\u88c5\u5a92\u4f53\u53d1\u9001\u7ba1\u7ebf<\/td>\n\u7279\u5b9a\u4e1a\u52a1\u63a7\u5236\u3001\u8d44\u6e90\u6cbb\u7406\u53ca\u81ea\u5b9a\u4e49\u4fe1\u4ee4\u9002\u914d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

str0m \u662f Sans I\/O \u5b9e\u73b0，\u534f\u8bae\u5bf9\u8c61\u81ea\u8eab\u4e0d\u8fdb\u884c\u7f51\u7edc\u6536\u53d1，\u4e5f\u6ca1\u6709\u5185\u90e8\u7ebf\u7a0b\u6216\u5f02\u6b65\u4efb\u52a1\u3002\u4f7f\u7528\u8005\u5fc5\u987b\u9a71\u52a8\u5b83\u7684\u8f93\u5165\u3001\u8f93\u51fa\u4e0e\u8d85\u65f6，\u5e76\u9075\u5b88\u76f8\u5e94\u7248\u672c\u7684\u4e8b\u4ef6\u5faa\u73af\u5951\u7ea6\u300213<\/p>\n

\u5f53\u524d webrtc \u6587\u6863\u63cf\u8ff0\u7684\u662f\u5f02\u6b65\u63a5\u53e3\u4e0e\u534f\u8bae\u6838\u5fc3\u5206\u79bb\u7684\u5b9e\u73b0\u3002\u5386\u53f2\u6559\u7a0b\u4e2d\u7684\u5bfc\u5165\u8def\u5f84\u548c\u6784\u9020\u65b9\u5f0f\u53ef\u80fd\u4e0d\u518d\u5339\u914d；\u793a\u4f8b\u3001\u4f9d\u8d56\u548c\u6587\u6863\u5e94\u56fa\u5b9a\u5230\u540c\u4e00\u7248\u672c，\u800c\u4e0d\u662f\u62fc\u63a5\u4e0d\u540c\u5e74\u4ee3\u7684\u4ee3\u7801\u300214<\/p>\n

\u65e0\u8bba\u9009\u54ea\u4e00\u4e2a，\u90fd\u8fd8\u9700\u8981\u83b7\u5f97\u6b63\u786e\u7684\u7f16\u7801\u5e27，\u5e76\u628a\u7f51\u7edc\u53cd\u9988\u9001\u56de\u7f16\u7801\u63a7\u5236\u903b\u8f91\u3002<\/p>\n

**\u201c\u53d1\u51fa\u4e86 RTP \u5305\u201d\u53ea\u662f\u8d77\u70b9\u3002\u751f\u4ea7\u94fe\u8def\u8fd8\u8981\u5904\u7406\u5173\u952e\u5e27\u8bf7\u6c42\u3001\u7801\u7387\u81ea\u9002\u5e94\u3001\u65f6\u95f4\u6233\u3001\u4e22\u5305\u6062\u590d\u3001\u53d1\u9001\u8282\u594f\u548c\u91cd\u8fde\u3002**\u672c\u6587\u4e0d\u628a\u51e0\u5341\u884c API \u8c03\u7528\u5305\u88c5\u6210\u5b8c\u6574\u7684 WebRTC \u5e73\u53f0\u3002<\/p>\n

\u516b\u3001\u7f51\u7edc\u53cd\u9988\u5fc5\u987b\u80fd\u5f71\u54cd\u7f16\u7801，\u800c\u4e0d\u53ea\u662f\u5199\u8fdb\u65e5\u5fd7<\/h3>\n

\u81ea\u5b9a\u4e49\u5a92\u4f53\u5c42\u65f6，\u5efa\u8bae\u5efa\u7acb\u4e00\u6761\u660e\u786e\u7684\u95ed\u73af：<\/p>\n

\u63a5\u6536\u7aef\u53cd\u9988 \u2192 \u5e26\u5bbd\u4e0e\u62e5\u585e\u5224\u65ad \u2192 \u76ee\u6807\u7801\u7387 \/ \u5e27\u7387 \/ \u5206\u8fa8\u7387 \u2192 \u7f16\u7801\u5668\u914d\u7f6e \u2192 \u65b0\u7684\u53d1\u9001\u72b6\u6001\u3002<\/p>\n

webrtcsink \u5df2\u6709\u76f8\u5e94\u7684\u62e5\u585e\u63a7\u5236\u673a\u5236；\u81ea\u884c\u4f7f\u7528\u534f\u8bae\u5e93\u65f6，\u9700\u8981\u660e\u786e\u54ea\u4e9b\u80fd\u529b\u7531\u5e93\u8d1f\u8d23，\u54ea\u4e9b\u56de\u8c03\u5fc5\u987b\u63a5\u5165\u5e94\u7528\u300211<\/p>\n

\u5173\u952e\u5e27\u8bf7\u6c42\u4e5f\u9700\u8981\u5408\u5e76\u548c\u9650\u6d41，\u9632\u6b62\u5f31\u7f51\u6216\u591a\u4e2a\u63a5\u6536\u7aef\u9891\u7e41\u89e6\u53d1\u6602\u8d35\u7684\u7f16\u7801\u5de5\u4f5c\u3002<\/p>\n

\u8f93\u5165\u901a\u9053\u5219\u5efa\u8bae\u5206\u6210\u4e24\u7c7b：\u6301\u7eed\u76f8\u673a\u72b6\u6001\u53ef\u4ee5\u7528\u201c\u65b0\u72b6\u6001\u8986\u76d6\u65e7\u72b6\u6001\u201d\u7684\u8bed\u4e49；\u70b9\u51fb\u3001\u786e\u8ba4\u3001\u952e\u76d8\u6309\u4e0b\/\u62ac\u8d77\u548c\u4e1a\u52a1\u4fee\u6539\u9700\u8981\u53ef\u9760\u5904\u7406\u53ca\u5e42\u7b49\u786e\u8ba4\u3002<\/p>\n

\u7279\u522b\u6ce8\u610f，\u76f8\u5bf9\u9f20\u6807\u4f4d\u79fb\u4e0d\u80fd\u76f4\u63a5\u6309\u201c\u4e22\u4e86\u4e5f\u6ca1\u5173\u7cfb\u201d\u5904\u7406\u3002\u6d88\u606f\u4e22\u5931\u4f1a\u6539\u53d8\u7d2f\u8ba1\u4f4d\u79fb，\u5e94\u53d1\u9001\u5e26\u5e8f\u53f7\u7684\u7edd\u5bf9\u72b6\u6001\u6216\u7d2f\u8ba1\u91cf，\u6216\u8005\u8bbe\u8ba1\u660e\u786e\u7684\u8865\u507f\u7b56\u7565\u3002<\/p>\n

\u70b9\u51fb\u62fe\u53d6\u4e5f\u9700\u8981\u628a\u5750\u6807\u6620\u5c04\u5230\u5b9e\u9645\u89c6\u9891\u5185\u5bb9\u533a\u57df，\u6263\u9664\u9ed1\u8fb9\u3002\u9700\u8981\u7cbe\u786e\u547d\u4e2d\u7684\u573a\u666f，\u8fd8\u5e94\u5173\u8054\u753b\u9762\u5bf9\u5e94\u7684\u76f8\u673a\u72b6\u6001，\u800c\u4e0d\u662f\u59cb\u7ec8\u4f7f\u7528\u670d\u52a1\u5668\u7684\u6700\u65b0\u76f8\u673a\u3002<\/p>\n

\u8fd9\u4e9b\u8f93\u5165\u548c\u62fe\u53d6\u89c4\u5219\u662f\u4e1a\u52a1\u534f\u8bae\u8bbe\u8ba1，\u4e0d\u5e94\u901a\u8fc7\u4efb\u610f\u6267\u884c\u5ba2\u6237\u7aef JavaScript \u6765\u5b9e\u73b0\u3002<\/p>\n

\u4e5d\u3001\u6362\u6210 Rust，\u6536\u76ca\u5230\u5e95\u6709\u591a\u5927？<\/h3>\n

9.1 \u63a7\u5236\u5c42\u52a0\u901f，\u4e0d\u7b49\u4e8e\u6e32\u67d3\u901f\u5ea6\u7ffb\u500d<\/h4>\n

\u5047\u8bbe\u4e00\u4e2a\u6a21\u5757\u5360\u539f\u603b\u4e32\u884c\u8017\u65f6\u7684\u6bd4\u4f8b\u4e3a p，\u91cd\u5199\u540e\u6267\u884c\u901f\u5ea6\u53d8\u6210\u539f\u6765\u7684 3 \u500d，\u800c\u5176\u4ed6\u90e8\u5206\u4e0d\u53d8：<\/p>\n

\u65b0\u8017\u65f6 \/ \u539f\u8017\u65f6 = (1 – p) + p \/ 3
\n\u603b\u8017\u65f6\u964d\u5e45 = p \u00d7 (1 – 1 \/ 3)<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u56fe 2：\u5047\u8bbe\u6a21\u578b，\u4e0d\u662f Rust \u4e0e Go \u7684\u5b9e\u6d4b\u3002\u672a\u52a0\u5165\u65b0\u589e\u901a\u4fe1\u3001\u590d\u5236\u6216\u8c03\u5ea6\u5f00\u9500，\u4e5f\u6ca1\u6709\u628a CPU\/GPU \u5e76\u884c\u6d41\u6c34\u7ebf\u5f53\u4f5c\u4e32\u884c\u8fc7\u7a0b\u3002<\/p>\n

\u76ee\u6807\u6a21\u5757\u53ea\u5360 5% \u65f6，\u5373\u4f7f\u52a0\u901f 3 \u500d，\u603b\u8017\u65f6\u4e5f\u53ea\u4e0b\u964d\u7ea6 3.3%；\u5982\u679c\u5360 50%，\u7406\u8bba\u964d\u5e45\u624d\u8fbe\u5230\u7ea6 33.3%\u3002<\/p>\n

\u56e0\u6b64，\u539f\u6765\u53ea\u662f\u521b\u5efa\u4f1a\u8bdd\u65f6\u6267\u884c\u7684 API，\u6539\u6210 Rust \u901a\u5e38\u4e0d\u5e94\u88ab\u5ba3\u4f20\u6210\u201c\u753b\u9762 FPS \u5927\u5e45\u63d0\u5347\u201d\u3002\u53cd\u8fc7\u6765，\u82e5\u771f\u6b63\u91cd\u7684\u662f\u9010\u5e27\u89e3\u6790\u3001\u65e0\u8c13\u590d\u5236\u6216\u5a92\u4f53\u8c03\u5ea6，\u4f18\u5316\u8fd9\u4e9b\u8def\u5f84\u624d\u53ef\u80fd\u5f71\u54cd\u4ea4\u4e92\u3002<\/p>\n

Rust \u7684\u5de5\u7a0b\u4ef7\u503c\u8fd8\u53ef\u80fd\u8868\u73b0\u4e3a\u66f4\u660e\u786e\u7684\u6240\u6709\u6743\u3001\u8d44\u6e90\u751f\u547d\u5468\u671f\u548c\u8fb9\u754c\u63a7\u5236，\u4f46\u662f\u5426\u964d\u4f4e\u603b CPU \u6216\u5185\u5b58，\u4ecd\u8981\u901a\u8fc7\u540c\u573a\u666f\u5bf9\u7167\u786e\u8ba4\u3002Chromium\u3001\u9a71\u52a8\u53ca\u7b2c\u4e09\u65b9\u5a92\u4f53\u7ec4\u4ef6\u7684\u884c\u4e3a\u4e0d\u4f1a\u56e0\u4e3a\u63a7\u5236\u670d\u52a1\u6362\u8bed\u8a00\u800c\u81ea\u52a8\u6539\u53d8\u3002<\/p>\n

9.2 \u7f51\u7edc\u8ddd\u79bb\u6bd4\u6846\u67b6\u5dee\u5f02\u5e38\u5e38\u66f4\u5173\u952e<\/h4>\n

\u5047\u8bbe\u975e\u7f51\u7edc\u5904\u7406\u5408\u8ba1 44 ms，\u4e0a\u4e0b\u884c\u4f20\u64ad\u5408\u8ba1\u8fd1\u4f3c RTT：<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u56fe 3：44 ms \u56fa\u5b9a\u5904\u7406\u9884\u7b97 + RTT \u7684\u7b80\u5316\u6a21\u578b，\u4e0d\u662f\u5b9e\u9645\u89c2\u6d4b\u6216 P95 \u5ef6\u8fdf\u3002<\/p>\n

RTT \u4e3a 30 ms \u65f6，\u9884\u7b97\u7ea6\u4e3a 74 ms；RTT \u4e3a 100 ms \u65f6，\u9884\u7b97\u7ea6\u4e3a 144 ms\u3002\u54ea\u6015\u628a\u67d0\u4e2a 1.5 ms \u7684\u63a7\u5236\u6b65\u9aa4\u964d\u5230 0.5 ms，\u4e5f\u53ea\u80fd\u7701 1 ms\u3002<\/p>\n

\u8fd9\u8bf4\u660e：\u9009\u62e9\u9760\u8fd1\u7528\u6237\u7684\u6e32\u67d3\u8282\u70b9\u3001\u51cf\u5c11\u6392\u961f，\u5f80\u5f80\u6bd4\u7ea0\u7ed3\u67d0\u4e2a HTTP \u6846\u67b6\u66f4\u6709\u610f\u4e49\u3002<\/p>\n

60 FPS \u4e0b\u79ef\u538b 3 \u5e27\u7ea6\u591a\u51fa 50 ms\u3002\u66f4\u77ed\u4e14\u53ef\u63a7\u7684\u961f\u5217，\u4e5f\u8bb8\u6bd4\u201c\u518d\u6362\u4e00\u4e2a\u66f4\u5feb\u7684\u5e93\u201d\u66f4\u76f4\u63a5\u3002<\/p>\n

\u5341\u3001\u5bb9\u91cf\u548c\u6210\u672c：\u7528 Rust \u4e5f\u7ed5\u4e0d\u5f00\u8fd9\u4e24\u7b14\u8d26<\/h3>\n

10.1 \u72ec\u7acb\u4ea4\u4e92\u4e0e\u5171\u4eab\u89c2\u770b\u8981\u5206\u5f00\u6838\u7b97<\/h4>\n

100 \u4eba\u89c2\u770b\u540c\u4e00\u76f8\u673a\u753b\u9762，\u548c 100 \u4eba\u5206\u522b\u65cb\u8f6c\u3001\u7f29\u653e\u3001\u5207\u56fe\u5c42，\u662f\u4e0d\u540c\u7684\u8d44\u6e90\u8d1f\u8f7d\u3002SFU \u53ef\u4ee5\u5e2e\u52a9\u8f6c\u53d1\u5a92\u4f53，\u4f46\u4e0d\u80fd\u66ff\u4ee3 100 \u4e2a\u72ec\u7acb\u89c6\u56fe\u7684\u8ba1\u7b97\u3002<\/p>\n

\u5efa\u8bae\u7528\u4ee5\u4e0b\u7ea6\u675f\u7ec4\u7ec7\u538b\u6d4b：<\/p>\n

\u72ec\u7acb\u4f1a\u8bdd\u5bb9\u91cf \u2264 min(
\n \u663e\u5b58\u5bb9\u91cf,
\n \u6ee1\u8db3\u5e27\u65f6\u95f4\u76ee\u6807\u7684\u6e32\u67d3\u5bb9\u91cf,
\n \u786c\u4ef6\u7f16\u7801\u541e\u5410\u548c\u4f1a\u8bdd\u9650\u5236,
\n CPU \/ \u5185\u5b58\u5bb9\u91cf,
\n \u51fa\u53e3\u5e26\u5bbd\u5bb9\u91cf
\n)<\/p>\n

\u4e3e\u4e00\u4e2a\u4e0e\u5177\u4f53 GPU \u578b\u53f7\u65e0\u5173\u7684\u5047\u8bbe：\u663e\u5b58\u5141\u8bb8 14 \u8def，\u6e32\u67d3\u5141\u8bb8 8 \u8def，\u7f16\u7801\u5141\u8bb8 12 \u8def，\u7f51\u7edc\u5141\u8bb8 21 \u8def，\u5219\u4e0a\u9650\u53d7\u6e32\u67d3\u4fa7\u7684 8 \u8def\u7ea6\u675f\u3002\u518d\u9884\u7559 20% \u8fd0\u884c\u7a7a\u95f4，\u5411\u4e0b\u53d6\u6574\u53ef\u6309 6 \u8def\u4f5c\u4e3a\u521d\u6b65\u8c03\u5ea6\u503c\u3002<\/p>\n

\u8fd9\u4e9b\u4e0d\u662f\u786c\u4ef6\u6d4b\u8bd5\u7ed3\u679c\u3002\u771f\u5b9e\u6570\u636e\u52a0\u8f7d\u3001\u76f8\u673a\u98de\u884c\u548c\u5173\u952e\u5e27\u540c\u65f6\u53d1\u751f\u65f6，\u9700\u8981\u91cd\u65b0\u68c0\u67e5\u5c16\u5cf0\u3002<\/p>\n

10.2 \u4e00\u767e\u540d\u6301\u7eed\u5728\u7ebf\u7528\u6237，\u6708\u89c6\u9891\u6570\u636e\u53ef\u80fd\u8d85\u8fc7 95 TB<\/h4>\n

\u5047\u8bbe 100 \u4eba\u3001\u6bcf\u8def\u5e73\u5747 12 Mbps\u3001\u6bcf\u5929\u89c2\u770b 8 \u5c0f\u65f6\u3001\u6bcf\u6708 22 \u5929：<\/p>\n

\u6301\u7eed\u89c6\u9891\u51fa\u53e3 = 100 \u00d7 12 Mbps = 1.2 Gbps<\/p>\n

\u6bcf\u7528\u6237\u6bcf\u5c0f\u65f6 = 12,000,000 \u00f7 8 \u00d7 3600
\n = 5.4 GB<\/p>\n

\u6bcf\u6708\u7eaf\u89c6\u9891 = 100 \u00d7 5.4 \u00d7 8 \u00d7 22
\n = 95.04 TB<\/p>\n

GB \/ TB \u4f7f\u7528\u5341\u8fdb\u5236\u3002\u989d\u5916\u9884\u7559 15% \u4f20\u8f93\u7a7a\u95f4\u540e，\u89c4\u5212\u51fa\u53e3\u7ea6\u4e3a 1.38 Gbps，\u6708\u6570\u636e\u91cf\u7ea6\u4e3a 109.30 TB\u3002<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u56fe 4：\u7ed9\u5b9a\u89c2\u770b\u65f6\u957f\u4e0e\u5e73\u5747\u7801\u7387\u4e0b\u7684\u6d4b\u7b97\u300215% \u662f\u89c4\u5212\u4f59\u91cf，\u4e0d\u662f WebRTC \u56fa\u5b9a\u5f00\u9500；\u4e0d\u542b\u97f3\u9891\u3001\u989d\u5916\u4e2d\u7ee7\u94fe\u8def\u548c\u5177\u4f53\u7f51\u7edc\u8ba1\u8d39\u3002<\/p>\n

TURN \u4e2d\u7ee7\u4f1a\u5360\u7528\u5b9e\u9645\u5a92\u4f53\u541e\u5410，\u4e0d\u53ea\u662f\u5904\u7406\u63e1\u624b\u3002\u662f\u5426\u589e\u52a0\u67d0\u4e00\u6bb5\u7684\u51fa\u53e3\u8d26\u5355，\u8981\u6839\u636e\u90e8\u7f72\u4f4d\u7f6e\u548c\u7f51\u7edc\u8def\u5f84\u6838\u5b9e，\u4e0d\u80fd\u7edf\u4e00\u8bf4\u8d39\u7528\u7ffb\u500d\u300219<\/p>\n

\u56e0\u6b64，\u4e0d\u5efa\u8bae\u628a\u672c\u5730\u5df2\u7ecf\u6d41\u7545\u7684\u6240\u6709\u7528\u6237\u90fd\u5f3a\u5236\u8fc1\u5230\u8fdc\u7a0b\u3002\u7ec8\u6001\u66f4\u9002\u5408\u4fdd\u7559\u672c\u5730\u6a21\u5f0f，\u628a\u8fdc\u7a0b GPU \u4f5c\u4e3a\u5f31\u7ec8\u7aef\u3001\u590d\u6742\u89c6\u56fe\u548c\u7279\u5b9a\u4e1a\u52a1\u7684\u6309\u9700\u80fd\u529b\u3002<\/p>\n

\u5341\u4e00\u3001\u90e8\u7f72\u4e0e\u5b89\u5168：\u5148\u89e3\u51b3\u6b63\u786e\u6027，\u518d\u8c08\u5355\u5361\u6781\u9650<\/h3>\n

\u5efa\u8bae\u5148\u9a8c\u8bc1\u5355\u673a\u3001\u5355\u4f1a\u8bdd\u30011080p\u3001\u771f\u5b9e\u4e1a\u52a1\u573a\u666f，\u518d\u9010\u6b65\u589e\u52a0\u5e76\u53d1\u3002<\/p>\n\n\u9a8c\u8bc1\u9879\u5fc5\u987b\u786e\u8ba4\u7684\u5185\u5bb9<\/tr>\n\n\n\n\n\n\n\n
GPU \u6e32\u67d3<\/td>\nChromium \u786e\u5b9e\u4f7f\u7528\u76ee\u6807 GPU，\u800c\u975e\u8f6f\u4ef6\u56de\u9000<\/td>\n<\/tr>\n
\u663e\u793a\u4e0e\u91c7\u96c6<\/td>\n\u9875\u9762\u8fdb\u5165\u6b63\u786e\u4f1a\u8bdd；\u5c3a\u5bf8\u3001\u7f29\u653e\u4e0e\u9f20\u6807\u6620\u5c04\u4e00\u81f4<\/td>\n<\/tr>\n
\u7f16\u7801\u8def\u5f84<\/td>\n\u5b9e\u9645\u786c\u4ef6\u7f16\u7801\u5668\u3001\u8f93\u5165\u5185\u5b58\u7c7b\u578b\u3001\u683c\u5f0f\u8f6c\u6362\u4e0e\u590d\u5236<\/td>\n<\/tr>\n
\u7f51\u7edc\u8def\u5f84<\/td>\n\u76f4\u8fde\u6216\u4e2d\u7ee7，\u6700\u7ec8\u5019\u9009\u5bf9\u4e0e\u534f\u8bae<\/td>\n<\/tr>\n
\u4f1a\u8bdd\u9000\u51fa<\/td>\n\u6d4f\u89c8\u5668\u3001\u5a92\u4f53\u3001\u663e\u5b58\u3001\u4e34\u65f6\u6587\u4ef6\u548c\u540d\u989d\u540c\u6b65\u56de\u6536<\/td>\n<\/tr>\n
\u5f02\u5e38\u6062\u590d<\/td>\n\u63a7\u5236\u8fdb\u7a0b\u5d29\u6e83\u3001Worker \u91cd\u542f\u3001\u65ad\u7ebf\u548c\u91cd\u590d\u8bf7\u6c42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5efa\u8bae\u628a\u540c\u4e00 GPU \u4e3b\u673a\u4e0a\u7684\u9a71\u52a8\u3001Chromium\u3001Selkies \u6216 GStreamer\u3001Rust \u53ef\u6267\u884c\u6587\u4ef6\u7ec4\u6210\u7ecf\u8fc7\u9a8c\u8bc1\u7684\u7248\u672c\u7ec4\u5408\u3002Rust \u4f9d\u8d56\u63d0\u4ea4 Cargo.lock，\u955c\u50cf\u56fa\u5b9a\u6458\u8981，\u8bb0\u5f55 GPU \u578b\u53f7\u548c\u9a71\u52a8\u3002\u4e0d\u8981\u628a\u672c\u6587\u7684\u5e93\u540d\u5217\u8868\u7406\u89e3\u4e3a\u4efb\u610f\u7248\u672c\u90fd\u80fd\u968f\u610f\u7ec4\u5408\u3002<\/p>\n

\u4e0d\u540c\u79df\u6237\u7684\u6d4f\u89c8\u5668\u8d44\u6599\u76ee\u5f55\u3001\u663e\u793a\u4f1a\u8bdd\u548c\u51ed\u8bc1\u5e94\u9694\u79bb\u3002\u591a\u4e2a\u6807\u7b7e\u9875\u4e0d\u662f\u5145\u5206\u7684\u79df\u6237\u5b89\u5168\u8fb9\u754c；\u9ad8\u9694\u79bb\u8981\u6c42\u8fd8\u8981\u8bc4\u4f30\u865a\u62df\u673a\u7b49\u65b9\u6848\u3002<\/p>\n

\u63a7\u5236\u9762\u4e0e Worker \u901a\u4fe1\u5e94\u9274\u6743；\u5916\u90e8\u8bf7\u6c42\u8bbe\u7f6e\u5927\u5c0f\u3001\u9891\u7387\u548c\u64cd\u4f5c\u6743\u9650\u9650\u5236\u3002Rust \u7684\u7c7b\u578b\u5b89\u5168\u4e0d\u80fd\u9632\u6b62\u903b\u8f91\u8d8a\u6743\u3001\u65e0\u9650\u8bf7\u6c42\u6216\u8d44\u6e90\u8017\u5c3d\u3002<\/p>\n

TURN \u53ef\u4f7f\u7528\u4e34\u65f6\u51ed\u8bc1，\u751f\u6210\u51ed\u8bc1\u7684\u5171\u4eab\u5bc6\u94a5\u7559\u5728\u53ef\u4fe1\u670d\u52a1\u7aef；\u4e0d\u8981\u628a\u56fa\u5b9a\u4e3b\u5bc6\u94a5\u4e0b\u53d1\u7ed9\u6d4f\u89c8\u5668\u3002coturn \u63d0\u4f9b\u76f8\u5e94\u7684\u8ba4\u8bc1\u914d\u7f6e\u80fd\u529b\u300219<\/p>\n

\u6700\u540e，\u4e0d\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u5b8c\u6574\u6a21\u578b，\u5e76\u4e0d\u80fd\u9632\u6b62\u622a\u56fe\u6216\u5f55\u5c4f\u3002\u8fdc\u7a0b\u6e32\u67d3\u4e0d\u662f\u72ec\u7acb\u5b8c\u6574\u7684\u6570\u636e\u9632\u6cc4\u9732\u65b9\u6848\u3002<\/p>\n

\u5341\u4e8c\u3001\u600e\u6837\u8bc1\u660e Rust \u7248\u503c\u5f97\u4fdd\u7559？<\/h3>\n

12.1 \u5bf9\u7167\u5fc5\u987b\u4e00\u6b21\u53ea\u6539\u53d8\u4e00\u4e2a\u4e3b\u8981\u56e0\u7d20<\/h4>\n

\u5efa\u8bae\u5bf9\u6bd4：\u4f18\u5316\u540e\u7684\u672c\u5730\u7248\u672c\u3001\u539f\u63a7\u5236\u5c42 + \u76f8\u540c\u5a92\u4f53\u94fe\u8def\u3001Rust \u63a7\u5236\u5c42 + \u76f8\u540c\u5a92\u4f53\u94fe\u8def，\u4ee5\u53ca\u5728\u5fc5\u8981\u65f6\u589e\u52a0\u7684 Rust \u81ea\u5b9a\u4e49\u5a92\u4f53\u5c42\u3002<\/p>\n

\u56fa\u5b9a GPU\u3001\u9a71\u52a8\u3001Chromium\u3001\u573a\u666f\u3001\u76f8\u673a\u8def\u7ebf\u3001\u5206\u8fa8\u7387\u3001\u753b\u8d28\u548c\u7f51\u7edc\u6761\u4ef6\u3002\u53ea\u8981\u540c\u65f6\u66f4\u6539\u7f16\u7801\u5668\u6216\u6a21\u578b\u7cbe\u5ea6，\u5c31\u4e0d\u80fd\u628a\u5168\u90e8\u6536\u76ca\u5f52\u7ed9 Rust\u3002<\/p>\n

\u5bb9\u91cf\u6d4b\u8bd5\u7528\u72ec\u7acb\u89c6\u56fe\u9012\u589e\u4f1a\u8bdd\u6570，\u51b7\u70ed\u7f13\u5b58\u5206\u522b\u8bb0\u5f55；\u5355\u7528\u6237 60 FPS \u4e0d\u80fd\u8bc1\u660e\u591a\u7528\u6237\u4e5f\u80fd\u8fbe\u5230\u76ee\u6807\u3002<\/p>\n

12.2 \u4e0d\u53ea\u8bb0\u5f55\u5e73\u5747 FPS<\/h4>\n\n\u6307\u6807\u7ec4\u5efa\u8bae\u8bb0\u5f55<\/tr>\n\n\n\n\n\n\n\n
\u4f1a\u8bdd<\/td>\n\u9996\u5e27\u65f6\u95f4\u3001\u8fde\u63a5\u6210\u529f\u7387\u3001\u6062\u590d\u65f6\u95f4\u3001\u56de\u6536\u65f6\u5ef6<\/td>\n<\/tr>\n
\u4e09\u7ef4<\/td>\n\u5e94\u7528\u5b9e\u9645\u66f4\u65b0\u6b21\u6570，CPU \/ GPU \u5e27\u65f6\u95f4\u5206\u5e03<\/td>\n<\/tr>\n
\u5a92\u4f53<\/td>\n\u6355\u83b7\u3001\u7f16\u7801\u8017\u65f6，\u961f\u5217\u5e74\u9f84，\u53d1\u9001\u4e0e\u89e3\u7801\u5e27\u7387<\/td>\n<\/tr>\n
\u7f51\u7edc<\/td>\nRTT\u3001\u4e22\u5305\u3001\u9009\u4e2d\u8def\u5f84\u3001\u7801\u7387\u4e0e\u51bb\u7ed3<\/td>\n<\/tr>\n
\u8d44\u6e90<\/td>\n\u6bcf\u4f1a\u8bdd CPU\u3001\u5185\u5b58\u3001\u663e\u5b58\u3001\u7f16\u7801\u5668\u4e0e\u51fa\u53e3<\/td>\n<\/tr>\n
\u4ea4\u4e92<\/td>\n\u64cd\u4f5c\u5230\u5b9e\u9645\u663e\u793a\u7684\u5b8c\u6574\u5ef6\u8fdf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6d4f\u89c8\u5668 WebRTC \u7edf\u8ba1\u63d0\u4f9b RTP\u3001\u5019\u9009\u5bf9\u548c\u89e3\u7801\u76f8\u5173\u6307\u6807\u3002\u5bf9\u7d2f\u8ba1\u5b57\u6bb5\u9700\u8981\u6309\u7a97\u53e3\u53d6\u5dee，\u5e76\u5904\u7406\u8ba1\u6570\u5668\u91cd\u7f6e\u3001\u7f3a\u5931\u5b57\u6bb5\u548c\u5206\u6bcd\u4e3a\u96f6\u7684\u60c5\u51b5\u300218<\/p>\n

\u5e73\u5747\u89e3\u7801\u8017\u65f6（ms）
\n= 1000 \u00d7 \u0394totalDecodeTime \/ \u0394framesDecoded<\/p>\n

\u5e73\u5747\u6296\u52a8\u7f13\u51b2（ms）
\n= 1000 \u00d7 \u0394jitterBufferDelay \/ \u0394jitterBufferEmittedCount<\/p>\n

\u8fd9\u4e9b\u6307\u6807\u4e0d\u662f\u5b8c\u6574\u7684\u64cd\u4f5c\u5230\u753b\u9762\u5ef6\u8fdf\u3002\u6536\u5230 DataChannel \u786e\u8ba4\u4e5f\u4e0d\u4ee3\u8868\u5bf9\u5e94\u89c6\u9891\u5df2\u7ecf\u663e\u793a；\u9700\u8981\u53ef\u6821\u51c6\u7684\u7aef\u5230\u7aef\u89c2\u6d4b，\u5fc5\u8981\u65f6\u4f7f\u7528\u9ad8\u901f\u6444\u5f71\u3002<\/p>\n

\u6b64\u5916，\u5404\u73af\u8282\u7684 P95 \u4e0d\u80fd\u76f4\u63a5\u76f8\u52a0\u5f53\u4f5c\u603b\u94fe\u8def P95\u3002\u7edf\u8ba1\u5e94\u57fa\u4e8e\u540c\u4e00\u6761\u5b8c\u6574\u4ea4\u4e92\u8bb0\u5f55\u3002<\/p>\n

12.3 \u672c\u6587\u4ee3\u7801\u4e0e\u6570\u636e\u7684\u9a8c\u8bc1\u8303\u56f4<\/h4>\n

\u914d\u5957 Rust \u793a\u4f8b\u5305\u542b\u5355\u8fdb\u7a0b\u5bb9\u91cf\u9884\u7559\u3001\u6700\u65b0\u539f\u59cb\u5e27\u901a\u9053\u548c 6 \u9879\u6d4b\u8bd5\u6e90\u7801；\u5f53\u524d\u5236\u4f5c\u73af\u5883\u6ca1\u6709 Rust\/Cargo \u5de5\u5177\u94fe，\u672a\u6267\u884c\u7f16\u8bd1\u4e0e Rust \u6d4b\u8bd5\u3002\u793a\u4f8b\u4e5f\u6ca1\u6709\u8fde\u63a5\u6d4f\u89c8\u5668\u3001\u7f16\u7801\u5668\u6216\u771f\u5b9e GPU\u3002<\/p>\n

\u5177\u5907\u5de5\u5177\u94fe\u540e，\u53ef\u8fdb\u5165 rust-examples \u76ee\u5f55\u6267\u884c：<\/p>\n

cargo<\/span> test<\/span>
\ncargo<\/span> fmt<\/span> — –check<\/span>
\ncargo<\/span> clippy –all-targets — -D<\/span> warnings<\/p>\n

\u672c\u5730\u5355\u5143\u6d4b\u8bd5\u901a\u8fc7，\u53ea\u80fd\u786e\u8ba4\u793a\u4f8b\u5bf9\u5e94\u7684\u884c\u4e3a，\u4e0d\u80fd\u66ff\u4ee3\u5b8c\u6574\u5a92\u4f53\u4e0e GPU \u9a8c\u6536\u3002<\/p>\n

\u6587\u7ae0\u4e2d\u7f16\u7801\u6570\u636e\u6765\u81ea\u5b98\u65b9\u53c2\u8003，\u5176\u4f59\u6536\u76ca\u3001\u5ef6\u8fdf\u548c\u5e26\u5bbd\u56fe\u8868\u4e3a\u660e\u786e\u5047\u8bbe\u4e0b\u7684\u8ba1\u7b97\u3002\u6ca1\u6709\u865a\u6784\u201cRust \u6bd4 Go \u5feb\u51e0\u500d\u201d\u7684\u9879\u76ee\u5b9e\u6d4b\u3002<\/p>\n

\u5341\u4e09\u3001\u6700\u7ec8\u9009\u578b：\u7528 Rust \u7ba1\u4f4f\u590d\u6742\u6027，\u800c\u4e0d\u662f\u6269\u5927\u6539\u9020\u8303\u56f4<\/h3>\n

\u5bf9\u4e8e\u5df2\u6709 Three.js \/ Cesium \u7cfb\u7edf，\u5efa\u8bae\u91c7\u7528\u4ee5\u4e0b\u63a8\u8fdb\u987a\u5e8f\u3002<\/p>\n

**\u5148\u4ea4\u4ed8\u53ef\u7528\u80fd\u529b\u3002**Rust + Axum + Tokio \u7ba1\u7406\u4f1a\u8bdd\u548c Worker，chromiumoxide \u7ba1\u7406\u73b0\u6709\u6d4f\u89c8\u5668\u5e94\u7528，Selkies \/ pixelflux \u8d1f\u8d23\u5a92\u4f53\u94fe\u8def\u3002\u6ca1\u6709\u660e\u786e\u74f6\u9888\u65f6，\u4e0d\u91cd\u590d\u5f00\u53d1\u7f16\u7801\u548c\u4f20\u8f93\u3002<\/p>\n

**\u518d\u66ff\u6362\u786e\u5b9e\u53d7\u9650\u7684\u6a21\u5757\u3002**\u9700\u8981\u7cbe\u7ec6\u7ba1\u7ebf\u63a7\u5236\u65f6，\u4f18\u5148\u8bc4\u4f30 gstreamer-rs + webrtcsink；\u9700\u8981\u81ea\u884c\u63a7\u5236\u534f\u8bae\u4e0e\u7f51\u7edc\u8c03\u5ea6\u65f6，\u518d\u9009\u62e9 str0m \u6216 webrtc，\u5e76\u8865\u9f50\u8f93\u5165\u3001\u7f16\u7801\u53cd\u9988\u548c\u5bb9\u91cf\u6cbb\u7406\u3002<\/p>\n

**\u6700\u540e\u624d\u8ba8\u8bba\u539f\u751f\u91cd\u6784\u3002**\u53ea\u6709\u4ea7\u54c1\u672c\u8eab\u9700\u8981\u65b0\u7684\u6e32\u67d3\u6838\u5fc3\u3001\u8de8\u5e73\u53f0\u590d\u7528\u6216\u957f\u671f\u5dee\u5f02\u5316\u80fd\u529b\u65f6，\u624d\u628a wgpu \u539f\u751f\u8def\u7ebf\u5217\u4e3a\u72ec\u7acb\u9879\u76ee，\u800c\u4e0d\u662f\u628a\u5b83\u5f53\u6210\u4f18\u5316\u73b0\u6709\u5730\u56fe\u7684\u5feb\u6377\u6309\u94ae\u3002<\/p>\n

Rust \u6700\u503c\u5f97\u53d1\u6325\u7684\u5730\u65b9，\u662f\u53ef\u63a7\u7684\u8d44\u6e90\u751f\u547d\u5468\u671f\u3001\u660e\u786e\u7684\u4efb\u52a1\u8fb9\u754c\u548c\u53ef\u89c2\u6d4b\u7684\u5b9e\u65f6\u94fe\u8def\u3002\u771f\u6b63\u51b3\u5b9a\u4f53\u9a8c\u7684，\u4ecd\u7136\u662f\u753b\u9762\u6709\u6ca1\u6709\u53ca\u65f6\u751f\u6210\u3001\u6709\u6ca1\u6709\u5c11\u642c\u6570\u636e\u3001\u6709\u6ca1\u6709\u5c11\u6392\u961f，\u4ee5\u53ca\u670d\u52a1\u5668\u79bb\u7528\u6237\u6709\u591a\u8fdc\u3002<\/p>\n

\u53c2\u8003\u8d44\u6599\u4e0e\u56fe\u8868\u8bf4\u660e<\/h3>\n

\u5916\u90e8\u8d44\u6599\u5747\u6765\u81ea\u9879\u76ee\u5b98\u65b9\u6587\u6863\u3001\u6807\u51c6\u7ec4\u7ec7\u6216\u76f8\u5173\u5382\u5546\u3002\u5e93\u6587\u6863\u7684 latest \u9875\u9762\u53ef\u80fd\u7ee7\u7eed\u53d8\u5316，\u5b9e\u65bd\u65f6\u5e94\u56fa\u5b9a\u5230\u5b9e\u9645\u4f9d\u8d56\u7248\u672c\u3002\u56fe 1 \u4e3a\u5b98\u65b9\u6570\u636e\u91cd\u7ed8；\u56fe 2\u20144 \u4e3a\u672c\u6587\u5047\u8bbe\u6a21\u578b，\u4e0d\u662f GPU \u5b9e\u6d4b\u3002<\/p>\n

  • Axum：\u8def\u7531\u3001\u8fd0\u884c\u65f6\u4e0e\u4e2d\u95f4\u4ef6<\/li>\n
  • Tokio watch：\u4fdd\u7559\u6700\u65b0\u503c\u7684\u901a\u9053<\/li>\n
  • Tokio Semaphore：\u5bb9\u91cf\u4ee4\u724c<\/li>\n
  • Tokio spawn_blocking：\u963b\u585e\u4e0e\u53d6\u6d88\u8fb9\u754c<\/li>\n
  • chromiumoxide：Rust CDP \u4e0e\u6d4f\u89c8\u5668\u63a7\u5236<\/li>\n
  • Selkies Getting Started：\u4f20\u8f93\u4e0e\u90e8\u7f72<\/li>\n
  • Selkies Design：\u7ec4\u4ef6\u4e0e\u8fd0\u884c\u65f6<\/li>\n
  • pixelflux：\u91c7\u96c6\u3001\u7f16\u7801\u4e0e GPU \u8def\u5f84<\/li>\n
  • gstreamer-rs：Rust \u7ed1\u5b9a\u53ca\u8fd0\u884c\u4f9d\u8d56<\/li>\n
  • GStreamer webrtcsink：\u5a92\u4f53\u53d1\u9001\u63a5\u53e3<\/li>\n
  • GStreamer rswebrtc：\u53cd\u9988\u4e0e\u591a\u63a5\u6536\u7aef\u8fb9\u754c<\/li>\n
  • GStreamer nvh264enc：GPU \u7f16\u7801\u548c\u8f93\u5165\u683c\u5f0f<\/li>\n
  • str0m：Sans I\/O WebRTC<\/li>\n
  • webrtc：\u5f02\u6b65 Rust WebRTC API<\/li>\n
  • wgpu：\u8de8\u5e73\u53f0 Rust \u56fe\u5f62 API<\/li>\n
  • NVIDIA \u7f16\u89e3\u7801\u786c\u4ef6\u652f\u6301\u77e9\u9635<\/li>\n
  • Epic Pixel Streaming Reference：\u516c\u5f00\u7f16\u7801\u6570\u636e<\/li>\n
  • W3C WebRTC Statistics API<\/li>\n
  • coturn：\u4e2d\u7ee7\u4e0e\u8ba4\u8bc1\u914d\u7f6e<\/li>\n
  • Chromium：\u65e0\u5934\u73af\u5883 GPU \u52a0\u901f\u6761\u4ef6<\/li>\n
  • SQLx：Rust \u5f02\u6b65\u6570\u636e\u5e93\u8bbf\u95ee<\/li>\n
  • tonic：Rust gRPC<\/li>\n
  • tracing：\u7ed3\u6784\u5316\u8bca\u65ad\u4e0e\u8ffd\u8e2a<\/li>\n
  • redis-rs：Rust Redis \u5ba2\u6237\u7aef<\/li>\n","protected":false},"excerpt":{"rendered":"

    \u4e00\u3001\u201c\u7528 Rust \u5b9e\u73b0\u201d\u5230\u5e95\u6307\u54ea\u4e00\u5c42？
    \n\u6280\u672f\u8def\u7ebf：Rust Axum Tokio GPU Chromium \u786c\u4ef6\u7f16\u7801 WebRTC \u201cRust \u7248\u201d\u81f3\u5c11\u5305\u542b\u4e09\u79cd\u4e0d\u540c\u7684\u8def\u7ebf，\u4e0d\u80fd\u6df7\u4e3a\u4e00\u8c08\u3002
    \n\u8def\u7ebf\u6539\u9020\u8303\u56f4\u5bf9\u5df2\u6709\u9879\u76ee\u7684\u5f71\u54cdA：Rust \u63a7\u5236\u5c42Rust \u7ba1\u7406\u4f1a\u8bdd\u3001\u5bb9\u91cf\u3001\u6d4f\u89c8\u5668\u548c\u6d41\u9001\u5b9e\u4f8b；\u5a92\u4f53\u590d\u7528 SelkiesThree.js \/ Cesium \u9875\u9762\u57fa\u672c\u4fdd\u7559，\u4f18\u5148\u9a8c\u8bc1B：<\/p>\n","protected":false},"author":2,"featured_media":120319,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11820,187,206,537],"topic":[],"class_list":["post-120323","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-atomgit","tag-javascript","tag-rust","tag-webrtc"],"yoast_head":"\n\u7528 Rust \u642d\u5efa\u8fdc\u7a0b\u4e09\u7ef4\u5e73\u53f0\uff1aThree.js \/ Cesium + WebRTC \u7684\u5de5\u7a0b\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/120323.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7528 Rust \u642d\u5efa\u8fdc\u7a0b\u4e09\u7ef4\u5e73\u53f0\uff1aThree.js \/ Cesium + WebRTC \u7684\u5de5\u7a0b\u5b9e\u8df5 - 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