\u4e32\u6d41\u5a92\u9ad4(Stream Media)\u7684\u4f5c\u7528\uff0c\u662f\u5c07\u5373\u6642\u5f71\u97f3\u8cc7\u6599\u58d3\u7e2e\u5f8c\uff0c\u4ee5\u7a69\u5b9a\u5feb\u901f\u7684\u50b3\u8f38\u9001\u5230\u7528\u6236\u7aef (Client) \uff0c\u900f\u904e\u64ad\u653e\u7a0b\u5f0f\u89e3\u58d3\u7e2e\u958b\u59cb\u64ad\u653e\uff0c\u7528\u6236\u53ef\u4ee5\u4e00\u908a\u4e0b\u8f09\u3001\u4e00\u908a\u89c0\u770b\uff0c\u800c\u4e0d\u5fc5\u5148\u5c07\u6240\u6709\u8cc7\u6599\uff0c\u90fd\u4e0b\u8f09\u5230\u786c\u789f\u4e0a\uff0c\u518d\u958b\u555f\u61c9\u7528\u8edf\u9ad4\u89c0\u770b\u3002<\/p>\n
\u4e32\u6d41 (Streaming)\u662f\u6307\u5c07\u4e00\u9023\u4e32\u7684\u5f71\u50cf\u58d3\u7e2e<\/a>\u5f8c\uff0c\u7d93\u904e\u7db2\u969b\u7db2\u8def\u5206\u6bb5\u50b3\u9001\u8cc7\u6599\uff0c\u5728\u7db2\u8def\u4e0a\u5373\u6642\u50b3\u8f38\u5f71\u97f3\u7684\u4e00\u7a2e\u6280\u8853\uff0c\u4e26\u4e0d\u5c07\u591a\u5a92\u9ad4\u8cc7\u6599\u5be6\u969b\u62f7\u8c9d\u4e00\u4efd\u5b58\u653e\u5728\u672c\u6a5f\u7aef\uff0c\u800c\u662f\u5229\u7528\u5ba2\u6236\u7aef\u7de9\u885d\u8a18\u61b6\u9ad4(Buffer)\u7684\u6982\u5ff5\uff0c\u5c07\u8cc7\u6599\u4e0d\u7d93\u5be6\u9ad4\u5132\u5b58\u800c\u76f4\u63a5\u7531\u7de9\u885d\u8a18\u61b6\u9ad4\u8b80\u53d6\u64ad\u653e\u5f8c\u4e1f\u68c4\uff0c\u53ef\u7bc0\u7701\u672c\u6a5f\u7aef\u78c1\u789f\u5132\u5b58\u7a7a\u9593\uff0c\u56e0\u6b64\u61c9\u7528\u65bc\u7dda\u4e0a\u6559\u5b78\u3001\u8996\u8a0a\u6703\u8b70\u3001\u7dda\u4e0a\u5ee3\u544a\u3001\u96a8\u9078\u8996\u8a0a<\/a>(VoD)\u3001\u5373\u6642\u7dda\u4e0a\u8f49\u64ad\u3001\u7db2\u8def\u96fb\u8996\u4ee5\u53ca\u7db2\u8def\u96fb\u53f0(NetRadio)\u7b49\u5404\u7a2e\u7db2\u8def\u591a\u5a92\u9ad4\u61c9\u7528\u3002<\/p>\n <\/p>\n \u56e0\u4e32\u6d41\u5f71\u97f3\u5167\u5bb9\u7d93\u904e\u9ad8\u5ea6\u58d3\u7e2e\uff0c\u54c1\u8cea\u4e0d\u5982MP3<\/a>\u6216AVI\u7b49\u5f71\u97f3\u683c\u5f0f\uff0c\u5f71\u97f3\u8cc7\u6599\u9001\u9054\u89c0\u8cde\u8005\u9700\u7528\u7279\u5b9a\u64ad\u653e\u8edf\u9ad4\u64ad\u653e\uff0c\u5982Microsoft<\/a>\u7684Windows Media Player\u3001Real Networks\u7684Real Player\u6216Apple\u7684QuickTime Player\u3002<\/p>\n <\/p>\n \u6309\u5ee3\u64ad\u65b9\u5f0f\uff1a \u4e32\u6d41\u5a92\u9ad4\u5728\u7db2\u969b\u7db2\u8def\u4e0a\u7684\u50b3\u8f38\u65b9\u5f0f\u4e3b\u8981\u6709\u5169\u7a2e\uff0c\u4e00\u7a2e\u662fHTTP<\/a>\/TCP\uff0c\u53e6\u4e00\u7a2e\u662fRTP\/UDP<\/a>\u3002\u4ee5HTTP(HyperText Transfer Protocol)\u70ba\u57fa\u790e\u7684WWW\u662f\u7db2\u969b\u7db2\u8def\u4e0a\u4f7f\u7528\u6700\u5ee3\u7684\u670d\u52d9\u4e4b\u4e00\uff0c\u5229\u7528HTTP \u5354\u5b9a\u53ef\u4ee5\u8b93\u4e32\u6d41\u5a92\u9ad4\u5f97\u4ee5\u7a7f\u904e\u9632\u706b\u7246<\/a>\u7684\u963b\u9694\uff0c\u4e14\u5c07\u4e32\u6d41\u5a92\u9ad4\u653e\u5728WWW\u4e0a\u53ef\u4ee5\u8b93\u4f7f\u7528\u8005\u65b9\u4fbf\u7684\u53d6\u5f97\u9019\u4e9b\u5167\u5bb9\uff0c\u7136\u5176\u7f3a\u9ede\u5728\u65bcTCP(Transmission Control Protocol)\u00a0\u901a\u8a0a\u5354\u5b9a\u5c07\u6703\u5c0e\u81f4\u50b3\u8f38\u901f\u5ea6\u7684\u6e1b\u7de9\uff0c\u9032\u800c\u589e\u52a0\u4e32\u6d41\u5a92\u9ad4\u6240\u9700\u8981\u7684\u983b\u5bec\uff0c\u4e14\u4e32\u6d41\u8cc7\u6599\u5fc5\u9808\u4e8b\u5148\u653e\u7f6e\u65bc\u7db2\u9801\u4e0a\u800c\u7121\u6cd5\u9054\u5230\u771f\u6b63\u5373\u6642\u7684\u6548\u679c\u3002\u53e6\u5916\u4f7f\u7528RTP(Real Time Protocol)\/UDP\u00a0(User Data Protocol)\u7684\u512a\u9ede\u5728\u65bcUDP \u53ef\u4ee5\u63d0\u4f9b\u8f03\u597d\u7684\u50b3\u8f38\u6548\u7387\uff0c\u4e14\u53ef\u4ee5\u9054\u5230\u771f\u6b63\u5373\u6642\u7684\u6548\u679c\u4e26\u63d0\u4f9b\u7fa4\u64ad\u7b49\u6709\u6548\u7387\u7684\u50b3\u8f38\u65b9\u5f0f\uff0c\u4f46\u6709\u9632\u706b\u7246\u7684\u554f\u984c\u5247\u9700\u8981\u5728\u9632\u706b\u7246\u5169\u7aef\u52a0\u88ddtranslator\u7684\u8a2d\u5099\u4ee5\u4fbf\u7a7f\u904e\u9632\u706b\u7246\u3002<\/p>\n <\/p>\n \u4e32\u6d41\u6280\u8853(\u50b3\u8f38\u5354\u5b9a<\/a>)\u7684\u5206\u985e<\/p>\n \u2022 \u7b2c\u4e00\u985e\u4e32\u6d41\u6280\u8853\u5229\u7528\u6a19\u6e96\u7684\u7db2\u9801\u4f3a\u670d\u5668<\/a>\u00a0(Web server)\u5c07\u591a\u5a92\u9ad4\u8cc7\u6599\u9001\u5230\u4f7f\u7528\u8005\u7684\u64ad\u653e\u5668\u64ad\u653e\u3002<\/p>\n \u2022 \u7b2c\u4e8c\u985e\u4e32\u6d41\u6280\u8853\u662f\u5229\u7528\u7368\u7acb\u7684\u4e32\u6d41\u4f3a\u670d\u5668(streaming server)\u5c07\u591a\u5a92\u9ad4\u8cc7\u6599\u9001\u5230\u4f7f\u7528\u8005\u7684\u64ad\u653e\u5668\u4e0a\u64ad\u653e\u3002<\/p>\n \u2022 \u7b2c\u4e09\u985e\u4e32\u6d41\u6280\u8853\u53ebClientless Streaming\uff0c\u64ad\u653e\u5668\u4e0d\u662f\u5167\u5efa\u5728\u7528\u6236\u7aef\uff0c\u800c\u662f\u5728\u4e32\u6d41\u904e\u7a0b\u4e2d\u624d\u9001\u5230\u4f7f\u7528\u8005\u624b\u4e0a\u3002<\/p>\n \u7b2c\u4e00\u985e\u4e32\u6d41\u6280\u8853\u662f\u5229\u7528\u6a19\u6e96\u7684\u7db2\u9801\u4f3a\u670d\u5668\u5c07\u591a\u5a92\u9ad4\u8cc7\u6599\u9001\u5230\u4f7f\u7528\u8005\u7684\u64ad\u653e\u5668\u4e0a\u64ad\u653e\u3002\u56e0\u70ba\u6a19\u6e96\u7684\u7db2\u9801\u4f3a\u670d\u5668\u662f\u9075\u5b88HTTP\u901a\u8a0a\u5354\u5b9a\uff0c\u6240\u4ee5\u7a31\u70baHTTP Streaming\uff0cHTTP streaming \u662f\u6700\u5148\u5728\u5e02\u5834\u4e0a\u51fa\u73fe\u53ca\u904b\u7528\u7684\u4e32\u6d41\u65b9\u5f0f\uff0c\u4f7f\u7528\u9019\u7a2e\u65b9\u5f0f\u7684\u597d\u8655\u662f\u53ea\u8981\u4f7f\u7528\u4e00\u822c\u7684\u7db2\u9801\u4f3a\u670d\u5668\uff0c\u4e26\u4e0d\u9700\u8981\u518d\u53e6\u5916\u5efa\u7f6e\u5c08\u5c6c\u7684\u4e32\u6d41\u4f3a\u670d\u5668\uff0c\u6240\u4ee5\u4e5f\u7a31\u70baServerless Streaming \u6216\u662fPseudo Streaming\u3002\u56e0\u70ba\u4f7f\u7528HTTP \u5354\u5b9a\u4e0d\u5bb9\u6613\u81ea\u52d5\u5075\u6e2c\u7576\u6642\u7684\u7db2\u8def\u74b0\u5883\uff0c\u6240\u4ee5\u5fc5\u9808\u5148\u5099\u59a5\u5404\u7a2e\u901f\u7387\u7684\u8cc7\u6599\uff0c\u4ee5\u9069\u7528\u65bc\u4e0d\u540c\u983b\u5bec\u7684\u7db2\u8def\u74b0\u5883\uff0c\u800c\u6703\u9020\u6210\u4f3a\u670d\u5668\u7aef\u786c\u789f\u5132\u5b58\u7a7a\u9593\u7684\u6d6a\u8cbb\uff0c\u53c8\u56e0\u70baHTTP \u7684\u50b3\u8f38\u5c64<\/a>\u662f\u4f7f\u7528TCP\u901a\u8a0a\u5354\u5b9a\uff0c\u7576\u50b3\u8f38\u8cc7\u6599\u907a\u5931\u6642\u6703\u8981\u6c42\u91cd\u50b3\uff0c\u56e0\u6b64\u5bb9\u6613\u9020\u6210\u5ef6\u9072\u3002<\/p>\n \u5728\u4f7f\u7528HTTP streaming \u524d\uff0c\u591a\u5a92\u9ad4\u8cc7\u6599\u5fc5\u9808\u5148\u5305\u88dd\u6210\u7b26\u5408\u7db2\u9801\u4f3a\u670d\u5668\u7684\u7279\u5b9a\u683c\u5f0f\uff0c\u50cfRealPlayer \u6240\u4f7f\u7528\u7684Real Media Format(.rm)\u683c\u5f0f\u6216Window Media Player \u6240\u4f7f\u7528\u7684Advanced Streaming Format(.asf)\u683c\u5f0f\u3002<\/p>\n \u7b2c\u4e8c\u985e\u4e32\u6d41\u6280\u8853\u662f\u5229\u7528\u7368\u7acb\u7684\u4e32\u6d41\u4f3a\u670d\u5668\u5c07\u591a\u5a92\u9ad4\u8cc7\u6599\u9001\u5230\u4f7f\u7528\u8005\u7684\u64ad\u653e\u5668\u4e0a\u64ad\u653e\uff0c\u7a31\u70baTrue Streaming\uff0c\u4e00\u822c\u53c8\u7a31\u70baRTP Streaming\uff0c\u9075\u5b88RTP\u901a\u8a0a\u5354\u5b9a\uff0cRTP \u975e\u5e38\u985e\u4f3cHTTP \u8207FTP<\/a>\u00a0(File Transfer Protocol)\uff0c\u4e0d\u904e\u5b83\u662f\u91dd\u5c0d\u5373\u6642\u4e32\u6d41\u7684\u7279\u6b8a\u9700\u6c42\u6240\u8a2d\u8a08\u3002RTP \u6703\u4ee5\u4e00\u5b9a\u7684\u901f\u7387\uff0c\u50b3\u9001\u4e00\u689d\u55ae\u5411\u7684\u8cc7\u6599\u6d41\u5230\u64ad\u653e\u5668\uff0c\u53ea\u8981\u6709\u8db3\u5920\u7684\u7db2\u8def\u983b\u5bec\u50b3\u9001\u8cc7\u6599\uff0c\u64ad\u653e\u5668\u5c31\u6703\u7acb\u5373\u64ad\u653e\u5a92\u9ad4\u8cc7\u6599\u3002\u64ad\u653e\u5b8c\u5f8c\uff0c\u8cc7\u6599\u5c31\u6703\u6d88\u5931\u4e0d\u898b\uff0c\u5728\u4f7f\u7528\u8005\u7684\u786c\u789f\u5167\u4e0d\u6703\u5132\u5b58\u6709\u4efb\u4f55\u7684\u6a94\u6848\u3002\u82e5\u8981\u91cd\u64ad\u9700\u900f\u904e\u8207\u4e32\u6d41\u4f3a\u670d\u5668\u518d\u4e00\u6b21\u9023\u7dda\u624d\u884c\u3002<\/p>\n RTP \u7684\u50b3\u8f38\u5c64\u662f\u4f7f\u7528UDP\uff0cUDP \u5728\u8cc7\u6599\u905e\u9001\u65b9\u9762\uff0c\u6703\u6bd4TCP \u5feb\u901f\u4e14\u6709\u6548\u7387\uff0c\u56e0\u6b64\u53ef\u6709\u6548\u907f\u514d\u5ef6\u9072\u73fe\u8c61\u3002\u4f46\u56e0UDP \u7f3a\u4e4f\u56de\u5831\u8cc7\u6599\u907a\u5931\u7684\u6a5f\u5236\uff0c\u6240\u4ee5\u5728\u7db2\u969b\u7db2\u8def\u6216\u7121\u7dda\u7db2\u8def\u4e32\u6d41\u4e2d\uff0c\u6703\u6709\u8cc7\u6599\u907a\u5931\u7684\u60c5\u6cc1\uff0c\u5f71\u97ff\u54c1\u8cea\u4e0b\u964d\u3002\u53e6\u5916\u5927\u90e8\u4efd\u516c\u53f8\u548c\u4f01\u696d\u7684\u9632\u706b\u7246\u90fd\u6703\u6a94\u6389UDP\uff0c\u6240\u4ee5\u5728\u9632\u706b\u7246\u5167\u662f\u7121\u6cd5\u63a5\u6536\u5230\u85c9\u7531UDP \u905e\u9001\u7684\u4e32\u6d41\uff0c\u60f3\u8981\u5728\u6709\u9632\u706b\u7246\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528RTP\uff0c\u5fc5\u9808\u4f7f\u7528HTTP tunneling \u6280\u8853\uff0c\u4ea6\u5373\u5c07RTP\u00a0\u5c01\u5305<\/a>\u5305\u88f9\u5728HTTP \u5c01\u5305\u5167\uff0c\u4ee5\u65b9\u4fbf\u901a\u904e\u9632\u706b\u7246\u3002\u4f46HTTP tunneling 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