{"id":38358,"date":"2025-05-20T09:18:19","date_gmt":"2025-05-20T01:18:19","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38358.html"},"modified":"2025-05-20T09:18:19","modified_gmt":"2025-05-20T01:18:19","slug":"webrtc-%e9%80%9a%e8%af%9d%e5%8e%9f%e7%90%86%ef%bc%9a%e4%bb%8e%e5%8d%8f%e5%95%86%e5%88%b0%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38358.html","title":{"rendered":"WebRTC \u901a\u8bdd\u539f\u7406\uff1a\u4ece\u534f\u5546\u5230\u901a\u4fe1"},"content":{"rendered":"<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"720\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250520011812-682bd8543ba84.png\" width=\"1280\" \/><\/p>\n<p>\u5728\u5b9e\u65f6\u97f3\u89c6\u9891\u901a\u4fe1\u9886\u57df&#xff0c;WebRTC&#xff08;Web Real-Time Communication&#xff09;\u51ed\u501f\u5176\u5f00\u6e90\u3001\u65e0\u9700\u63d2\u4ef6\u4e14\u80fd\u5728\u6d4f\u89c8\u5668\u4e2d\u76f4\u63a5\u5b9e\u73b0\u9ad8\u8d28\u91cf\u901a\u4fe1\u7684\u7279\u6027&#xff0c;\u6210\u4e3a\u5f00\u53d1\u8005\u7684\u70ed\u95e8\u9009\u62e9\u3002\u672c\u6587\u5c06\u6df1\u5165\u89e3\u6790 WebRTC \u901a\u8bdd\u539f\u7406&#xff0c;\u6db5\u76d6\u5a92\u4f53\u534f\u5546\u3001\u7f51\u7edc\u534f\u5546\u3001\u7f51\u7edc\u7a7f\u8d8a&#xff08;STUN&#xff09;\u3001\u4e2d\u7ee7\u8f6c\u53d1&#xff08;TURN&#xff09;\u4ee5\u53ca\u4e00\u5bf9\u4e00\u901a\u8bdd\u4fe1\u4ee4\u670d\u52a1\u5668\u65f6\u5e8f\u7b49\u6838\u5fc3\u5185\u5bb9&#xff0c;\u52a9\u4f60\u63ed\u5f00 WebRTC \u901a\u4fe1\u7684\u795e\u79d8\u9762\u7eb1\u3002\u200b<\/p>\n<h3>\u4e00\u3001\u5a92\u4f53\u534f\u5546&#xff1a;\u786e\u5b9a\u901a\u4fe1 \u201c\u8bed\u8a00\u201d\u200b<\/h3>\n<p>\u5a92\u4f53\u534f\u5546\u662f WebRTC \u901a\u8bdd\u7684\u57fa\u77f3&#xff0c;\u5176\u6838\u5fc3\u5728\u4e8e\u901a\u4fe1\u53cc\u65b9\u5c31\u5a92\u4f53\u683c\u5f0f\u3001\u7f16\u89e3\u7801\u5668\u3001\u5206\u8fa8\u7387\u3001\u5e27\u7387\u7b49\u5173\u952e\u53c2\u6570\u8fbe\u6210\u5171\u8bc6&#xff0c;\u786e\u4fdd\u53cc\u65b9\u80fd\u591f\u987a\u7545 \u201c\u5bf9\u8bdd\u201d\u3002\u5728 WebRTC \u4f53\u7cfb\u4e2d&#xff0c;\u8fd9\u4e00\u8fc7\u7a0b\u4e3b\u8981\u4f9d\u6258 SDP&#xff08;Session Description Protocol&#xff0c;\u4f1a\u8bdd\u63cf\u8ff0\u534f\u8bae&#xff09;\u6765\u5b9e\u73b0\u3002\u200b<\/p>\n<h4>1. SDP \u534f\u8bae<\/h4>\n<p>\u672c\u5c0f\u8282\u53c2\u8003&#xff1a;<\/p>\n<p>SDP\u534f\u8bae\u662f\u4ec0\u4e48&#xff0c;\u8be6\u89e3SDP\u534f\u8bae-CSDN\u535a\u5ba2<\/p>\n<p>\u3010\u97f3\u89c6\u9891\u5f00\u53d1\u3011 &#xff1a; SDP\u534f\u8bae-CSDN\u535a\u5ba2<\/p>\n<p>SDP \u91c7\u7528\u7eaf\u6587\u672c\u683c\u5f0f&#xff0c;\u4ee5\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\u63cf\u8ff0\u591a\u5a92\u4f53\u4f1a\u8bdd\u5c5e\u6027&#xff0c;\u5176\u5185\u5bb9\u7531\u591a\u4e2a\u5b57\u6bb5\u7ec4\u6210&#xff0c;\u6bcf\u4e2a\u5b57\u6bb5\u90fd\u627f\u8f7d\u7740\u7279\u5b9a\u7684\u4fe1\u606f&#xff0c;\u5176\u57fa\u672c\u683c\u5f0f\u5982\u4e0b&#xff1a;<\/p>\n<p>&lt;type&gt;&#061;&lt;value&gt;<\/p>\n<p>\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5173\u952e\u5b57\u6bb5\u53ca\u5176\u4f5c\u7528&#xff1a;\u200b<\/p>\n<ul>\n<li>v&#061;&#xff1a;\u7248\u672c\u53f7\u5b57\u6bb5&#xff0c;\u6807\u8bc6 SDP \u534f\u8bae\u7684\u7248\u672c&#xff0c;\u76ee\u524d\u5e38\u7528\u7248\u672c\u4e3a 0 \u3002\u200b<\/li>\n<\/ul>\n<p>v&#061;0 <\/p>\n<ul>\n<li>o&#061;&#xff1a;\u62e5\u6709\u8005 \/ \u521b\u5efa\u8005\u5b57\u6bb5&#xff0c;\u5305\u542b\u7528\u6237\u540d\u3001\u4f1a\u8bdd ID\u3001\u4f1a\u8bdd\u7248\u672c\u7b49\u4fe1\u606f&#xff0c;\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u4e00\u4e2a\u4f1a\u8bdd\u3002\u200b<\/li>\n<\/ul>\n<p>o&#061;&lt;username&gt; &lt;sessionid&gt; &lt;version&gt; &lt;network type&gt; &lt;address type&gt; &lt;address&gt;<\/p>\n<ul>\n<li>s&#061;&#xff1a;\u4f1a\u8bdd\u540d\u79f0\u5b57\u6bb5&#xff0c;\u63cf\u8ff0\u4f1a\u8bdd\u7684\u4e3b\u9898\u6216\u7528\u9014&#xff0c;\u4f8b\u5982 \u201cWebRTC \u97f3\u89c6\u9891\u901a\u8bdd\u201d\u3002\u200b<\/li>\n<\/ul>\n<p>s&#061;&lt;sessionname&gt;<\/p>\n<ul>\n<li>c&#061;&#xff1a;\u8868\u793a\u5a92\u4f53\u7684\u8fde\u63a5\u4fe1\u606f&#xff0c;\u4f1a\u8bdd\u7ea7\u63cf\u8ff0\u4e2d\u6216\u4e2d\u5a92\u4f53\u7ea7\u63cf\u8ff0\u5fc5\u81f3\u5c11\u6709\u4e00\u4e2a\u201dc&#061;\u201c\u3002<\/li>\n<\/ul>\n<p>c&#061;&lt;networktype&gt; &lt;address type&gt; &lt;connection address&gt;<\/p>\n<ul>\n<li>t&#061;&#xff1a;\u4f1a\u8bdd\u65f6\u95f4\u5b57\u6bb5&#xff0c;\u6307\u660e\u4f1a\u8bdd\u7684\u5f00\u59cb\u65f6\u95f4\u548c\u7ed3\u675f\u65f6\u95f4&#xff0c;\u5728\u6301\u4e45\u8fde\u63a5\u7684 WebRTC \u901a\u8bdd\u4e2d&#xff0c;\u8be5\u5b57\u6bb5\u901a\u5e38\u8bbe\u7f6e\u4e3a 0 0&#xff0c;\u8868\u793a\u4f1a\u8bdd\u65e0\u56fa\u5b9a\u65f6\u95f4\u9650\u5236&#xff08;\u5355\u4f4d\u79d2&#xff09;\u3002\u200b<\/li>\n<\/ul>\n<p>t&#061;&lt;start time&gt;  &lt;stop time&gt;<\/p>\n<ul>\n<li>m&#061;&#xff1a;\u5a92\u4f53\u63cf\u8ff0\u5b57\u6bb5&#xff0c;\u662f\u5a92\u4f53\u534f\u5546\u7684\u6838\u5fc3\u90e8\u5206\u3002\u5b83\u4f1a\u660e\u786e\u5a92\u4f53\u7c7b\u578b&#xff08;\u5982 audio \u8868\u793a\u97f3\u9891&#xff0c;video \u8868\u793a\u89c6\u9891&#xff09;\u3001\u4f20\u8f93\u7aef\u53e3\u3001\u4f20\u8f93\u534f\u8bae&#xff08;\u901a\u5e38\u4e3a RTP\/AVP&#xff0c;\u5176\u4e2d AVP \u4ee3\u8868 Audio\/Video Profile&#xff09;&#xff0c;\u4ee5\u53ca\u8be5\u5a92\u4f53\u6d41\u652f\u6301\u7684\u6709\u6548\u8f7d\u8377\u7c7b\u578b&#xff08;\u5373\u7f16\u89e3\u7801\u5668&#xff09;\u3002\u4f8b\u5982 m&#061;video 9 UDP\/TLS\/RTP\/SAVPF 100 101 &#xff0c;\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u89c6\u9891\u5a92\u4f53\u6d41&#xff0c;\u4f7f\u7528 UDP \u534f\u8bae&#xff0c;\u57fa\u4e8e TLS \u8fdb\u884c\u5b89\u5168\u4f20\u8f93&#xff0c;\u91c7\u7528 RTP \u534f\u8bae&#xff0c;\u652f\u6301 SAVPF&#xff08;\u53ef\u6269\u5c55\u7684\u97f3\u89c6\u9891\u5206\u5e03\u7b80\u6863&#xff09;&#xff0c;\u6709\u6548\u8f7d\u8377\u7c7b\u578b 100 \u548c 101 \u5bf9\u5e94\u4e0d\u540c\u7684\u89c6\u9891\u7f16\u89e3\u7801\u5668\u3002\u200b<\/li>\n<\/ul>\n<p>m&#061;&lt;media&gt;&lt;port&gt; &lt;transport&gt; &lt;fmt list&gt;<\/p>\n<ul>\n<li>a&#061;&#xff1a;\u5c5e\u6027\u5b57\u6bb5&#xff0c;\u7528\u4e8e\u8865\u5145\u5a92\u4f53\u63cf\u8ff0\u7684\u8be6\u7ec6\u4fe1\u606f&#xff0c;\u5982\u7f16\u7801\u53c2\u6570\u3001\u5e26\u5bbd\u9650\u5236\u3001\u5a92\u4f53\u63a7\u5236\u7b49\u3002\u4f8b\u5982 a&#061;rtpmap:100 VP8\/90000 &#xff0c;\u8868\u793a\u6709\u6548\u8f7d\u8377\u7c7b\u578b 100 \u5bf9\u5e94\u7684\u662f VP8 \u89c6\u9891\u7f16\u89e3\u7801\u5668&#xff0c;\u91c7\u6837\u7387\u4e3a 90000Hz \u3002\u200b<\/li>\n<\/ul>\n<p>a&#061;rtpmap:&lt;payload type&gt;&lt;encoding name&gt;\/&lt;clock rate&gt;[\/&lt;encodingparameters&gt;]<\/p>\n<p>\u901a\u8fc7\u8fd9\u4e9b\u5b57\u6bb5\u7684\u7ec4\u5408&#xff0c;SDP \u80fd\u591f\u5168\u9762\u3001\u51c6\u786e\u5730\u63cf\u8ff0\u591a\u5a92\u4f53\u4f1a\u8bdd\u7684\u5404\u9879\u5c5e\u6027&#xff0c;\u4e3a\u5a92\u4f53\u534f\u5546\u63d0\u4f9b\u6e05\u6670\u7684\u4fe1\u606f\u57fa\u7840\u3002\u200b<\/p>\n<p>\u793a\u4f8b&#xff1a;<\/p>\n<p>v&#061;0<br \/>\no&#061;- 0 0 IN IP4 127.0.0.1<br \/>\ns&#061;VLC media player<br \/>\nc&#061;IN IP4 127.0.0.1<br \/>\nt&#061;0 0<br \/>\na&#061;tool:vlc 2.2.4<br \/>\nm&#061;video 5004 RTP\/AVP 96<br \/>\na&#061;rtpmap:96 H264\/90000<br \/>\na&#061;fmtp:96 packetization-mode&#061;1;profile-level-id&#061;64001F;sprop-parameter-sets&#061;Z0IAH5WoFAFuQA&#061;&#061;,aM48gA&#061;&#061;<br \/>\na&#061;control:streamid&#061;0 <\/p>\n<h4>2. Offer \u4e0e Answer \u7684\u751f\u6210\u4e0e\u4ea4\u4e92\u7ec6\u8282\u200b<\/h4>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"554\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250520011812-682bd85484ab2.png\" width=\"958\" \/><\/p>\n<p>\u5f53 A \u7aef\u53d1\u8d77\u901a\u8bdd\u8bf7\u6c42\u65f6&#xff0c;\u4f1a\u8c03\u7528 WebRTC API \u4e2d\u7684 createOffer \u65b9\u6cd5\u751f\u6210 SDP Offer\u3002\u5728\u751f\u6210\u8fc7\u7a0b\u4e2d&#xff0c;\u6d4f\u89c8\u5668\u6216\u5e94\u7528\u4f1a\u6839\u636e\u8bbe\u5907\u786c\u4ef6\u80fd\u529b\u548c\u8f6f\u4ef6\u914d\u7f6e&#xff0c;\u7f57\u5217\u51fa\u81ea\u8eab\u652f\u6301\u7684\u5a92\u4f53\u53c2\u6570\u7ec4\u5408\u3002\u4f8b\u5982&#xff0c;\u5728\u89c6\u9891\u65b9\u9762&#xff0c;\u53ef\u80fd\u652f\u6301 VP8\u3001VP9\u3001H.264 \u7b49\u591a\u79cd\u7f16\u7801\u683c\u5f0f&#xff0c;\u6bcf\u79cd\u683c\u5f0f\u53c8\u5bf9\u5e94\u4e0d\u540c\u7684\u5206\u8fa8\u7387\u548c\u5e27\u7387\u9009\u9879&#xff1b;\u97f3\u9891\u65b9\u9762&#xff0c;\u53ef\u80fd\u652f\u6301 Opus\u3001PCM \u7b49\u7f16\u7801\u683c\u5f0f&#xff0c;\u4ee5\u53ca\u4e0d\u540c\u7684\u91c7\u6837\u7387\u548c\u58f0\u9053\u6570\u3002\u8fd9\u4e9b\u4fe1\u606f\u90fd\u4f1a\u88ab\u6574\u5408\u5230 SDP Offer \u4e2d\u3002\u200b<\/p>\n<p>A \u7aef\u751f\u6210 Offer \u540e&#xff0c;\u901a\u8fc7\u4fe1\u4ee4\u670d\u52a1\u5668\u5c06\u5176\u53d1\u9001\u7ed9 B \u7aef\u3002B \u7aef\u63a5\u6536\u5230 Offer \u540e&#xff0c;\u4f1a\u5bf9\u5176\u4e2d\u7684\u5a92\u4f53\u53c2\u6570\u8fdb\u884c\u9010\u4e00\u5206\u6790\u3002\u9996\u5148&#xff0c;B \u7aef\u4f1a\u68c0\u67e5\u81ea\u8eab\u8bbe\u5907\u548c\u8f6f\u4ef6\u662f\u5426\u652f\u6301 Offer \u4e2d\u7684\u5a92\u4f53\u7c7b\u578b\u548c\u7f16\u89e3\u7801\u5668\u3002\u5982\u679c\u652f\u6301&#xff0c;B \u7aef\u4f1a\u6839\u636e\u81ea\u8eab\u7684\u6027\u80fd\u548c\u8d44\u6e90\u60c5\u51b5&#xff0c;\u4ece\u652f\u6301\u7684\u53c2\u6570\u4e2d\u9009\u62e9\u6700\u4f18\u7684\u7ec4\u5408&#xff0c;\u7136\u540e\u8c03\u7528 createAnswer \u65b9\u6cd5\u751f\u6210 SDP Answer\u3002\u4f8b\u5982&#xff0c;\u5982\u679c B \u7aef\u8bbe\u5907\u6027\u80fd\u6709\u9650&#xff0c;\u5bf9\u4e8e\u89c6\u9891\u7f16\u7801\u53ef\u80fd\u4f1a\u9009\u62e9\u76f8\u5bf9\u4f4e\u590d\u6742\u5ea6\u7684 VP8&#xff0c;\u800c\u4e0d\u662f H.264 \u3002\u200b<\/p>\n<p>B \u7aef\u751f\u6210 Answer \u540e&#xff0c;\u540c\u6837\u501f\u52a9\u4fe1\u4ee4\u670d\u52a1\u5668\u5c06\u5176\u8fd4\u56de\u7ed9 A \u7aef\u3002A \u7aef\u63a5\u6536\u5230 Answer \u540e&#xff0c;\u4f1a\u5bf9\u6bd4 Answer \u4e2d\u7684\u53c2\u6570\u4e0e\u81ea\u5df1 Offer \u4e2d\u7684\u53c2\u6570&#xff0c;\u786e\u8ba4\u53cc\u65b9\u662f\u5426\u5c31\u5a92\u4f53\u53c2\u6570\u8fbe\u6210\u4e00\u81f4\u3002\u82e5\u5b58\u5728\u4e0d\u4e00\u81f4\u6216\u65e0\u6cd5\u652f\u6301\u7684\u53c2\u6570&#xff0c;\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u53d1\u8d77\u534f\u5546&#xff0c;\u6216\u8005\u91c7\u53d6\u9ed8\u8ba4\u7684\u517c\u5bb9\u8bbe\u7f6e&#xff0c;\u4ee5\u4fdd\u8bc1\u901a\u8bdd\u80fd\u591f\u987a\u5229\u8fdb\u884c\u3002\u200b<\/p>\n<h4>3. \u5a92\u4f53\u534f\u5546\u8fc7\u7a0b\u4e2d\u7684\u5f02\u5e38\u5904\u7406\u4e0e\u517c\u5bb9\u6027\u200b<\/h4>\n<p>\u5728\u5b9e\u9645\u7f51\u7edc\u73af\u5883\u4e2d&#xff0c;\u5a92\u4f53\u534f\u5546\u5e76\u975e\u603b\u662f\u4e00\u5e06\u98ce\u987a&#xff0c;\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\u3002\u6bd4\u5982&#xff0c;\u7531\u4e8e\u7f51\u7edc\u5ef6\u8fdf\u6216\u4e22\u5305&#xff0c;B \u7aef\u53ef\u80fd\u65e0\u6cd5\u5b8c\u6574\u63a5\u6536 A \u7aef\u53d1\u9001\u7684 Offer&#xff0c;\u5bfc\u81f4\u89e3\u6790\u5931\u8d25\u3002\u6b64\u65f6&#xff0c;B \u7aef\u53ef\u4ee5\u901a\u8fc7\u4fe1\u4ee4\u670d\u52a1\u5668\u5411 A \u7aef\u53d1\u9001\u9519\u8bef\u53cd\u9988&#xff0c;\u8bf7\u6c42\u91cd\u65b0\u53d1\u9001 Offer\u3002\u200b<\/p>\n<p>\u53e6\u5916&#xff0c;\u4e0d\u540c\u6d4f\u89c8\u5668\u6216\u8bbe\u5907\u5bf9 WebRTC \u7684\u652f\u6301\u7a0b\u5ea6\u5b58\u5728\u5dee\u5f02&#xff0c;\u8fd9\u4e5f\u4f1a\u5f71\u54cd\u5a92\u4f53\u534f\u5546\u7684\u7ed3\u679c\u3002\u4f8b\u5982&#xff0c;\u67d0\u4e9b\u8001\u65e7\u6d4f\u89c8\u5668\u53ef\u80fd\u4e0d\u652f\u6301\u6700\u65b0\u7684\u7f16\u89e3\u7801\u5668&#xff0c;\u6216\u8005\u5bf9 SDP \u534f\u8bae\u7684\u67d0\u4e9b\u6269\u5c55\u5b57\u6bb5\u89e3\u6790\u5b58\u5728\u95ee\u9898\u3002\u4e3a\u4e86\u63d0\u9ad8\u517c\u5bb9\u6027&#xff0c;\u5f00\u53d1\u8005\u53ef\u4ee5\u5728\u534f\u5546\u8fc7\u7a0b\u4e2d\u8bbe\u7f6e\u4e00\u4e9b\u9ed8\u8ba4\u7684\u3001\u5e7f\u6cdb\u652f\u6301\u7684\u5a92\u4f53\u53c2\u6570\u4f5c\u4e3a\u4fdd\u5e95\u9009\u9879\u3002\u540c\u65f6&#xff0c;\u8fd8\u53ef\u4ee5\u91c7\u7528\u6e10\u8fdb\u5f0f\u534f\u5546\u7b56\u7565&#xff0c;\u5148\u5c1d\u8bd5\u4f7f\u7528\u9ad8\u7ea7\u7684\u5a92\u4f53\u53c2\u6570\u8fdb\u884c\u534f\u5546&#xff0c;\u5982\u679c\u5931\u8d25&#xff0c;\u5219\u9010\u6b65\u964d\u4f4e\u53c2\u6570\u8981\u6c42&#xff0c;\u76f4\u81f3\u627e\u5230\u53cc\u65b9\u90fd\u652f\u6301\u7684\u914d\u7f6e\u3002<\/p>\n<h3>\u4e8c\u3001\u7f51\u7edc\u534f\u5546&#xff1a;\u89c4\u5212\u6570\u636e\u4f20\u8f93\u8def\u5f84\u200b<\/h3>\n<p>\u7f51\u7edc\u534f\u5546\u5728 WebRTC \u901a\u8bdd\u4e2d\u81f3\u5173\u91cd\u8981&#xff0c;\u5b83\u7684\u6838\u5fc3\u4f7f\u547d\u662f\u4e3a\u901a\u4fe1\u53cc\u65b9\u6572\u5b9a\u6570\u636e\u4f20\u8f93\u7684\u8def\u5f84\u4e0e\u65b9\u5f0f&#xff0c;\u6d89\u53ca\u7f51\u7edc\u5730\u5740\u3001\u7aef\u53e3\u4ee5\u53ca\u4f20\u8f93\u534f\u8bae\u7b49\u5173\u952e\u8981\u7d20\u7684\u786e\u5b9a\u3002WebRTC \u91c7\u7528 ICE&#xff08;Interactive Connectivity Establishment&#xff0c;\u4ea4\u4e92\u5f0f\u8fde\u63a5\u5efa\u7acb&#xff09;\u6846\u67b6&#xff0c;\u901a\u8fc7\u7cfb\u7edf\u5316\u7684\u6d41\u7a0b\u4e0e\u7b56\u7565&#xff0c;\u5b9e\u73b0\u9ad8\u6548\u3001\u7a33\u5b9a\u7684\u6570\u636e\u4f20\u8f93\u94fe\u8def\u642d\u5efa&#xff08;ICE \u4e3b\u8981\u7528\u4e8e\u5b9e\u73b0\u7aef\u5230\u7aef\u7684\u901a\u4fe1\u8fde\u63a5&#xff0c;\u5c24\u5176\u662f\u5728 P2P&#xff08;Peer-to-Peer&#xff09;\u534f\u8bae\u4e2d&#xff0c;\u901a\u5e38\u4e0e STUN&#xff08;Session Traversal Utilities for NAT&#xff09;\u548c TURN&#xff08;Traversal Using Relays around NAT&#xff09;\u4e00\u8d77\u4f7f\u7528&#xff09;\u3002<\/p>\n<p>\u200b<\/p>\n<h4>1. ICE \u6846\u67b6\u7684\u6838\u5fc3\u6784\u6210\u4e0e\u5de5\u4f5c\u673a\u5236\u200b<\/h4>\n<p>ICE \u6846\u67b6\u4e3b\u8981\u7531\u4e09\u4e2a\u5173\u952e\u90e8\u5206\u7ec4\u6210&#xff1a;\u5019\u9009\u5730\u5740\u6536\u96c6\u3001\u5019\u9009\u5730\u5740\u4ea4\u6362\u3001\u5019\u9009\u5730\u5740\u68c0\u67e5\u548c\u8fde\u63a5\u5efa\u7acb\u3002\u200b<\/p>\n<p>\u5019\u9009\u5730\u5740\u6536\u96c6&#xff1a;\u200b<\/p>\n<p>ICE \u4f1a\u4ece\u591a\u4e2a\u6e20\u9053\u6536\u96c6\u5019\u9009\u5730\u5740&#xff0c;\u4e3a\u540e\u7eed\u7684\u8fde\u63a5\u5c1d\u8bd5\u63d0\u4f9b\u591a\u79cd\u53ef\u80fd\u6027\u3002\u8fd9\u4e9b\u5019\u9009\u5730\u5740\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u7c7b\u578b&#xff1a;\u200b<\/p>\n<ul>\n<li>\u4e3b\u673a\u5019\u9009\u5730\u5740&#xff08;Host Candidate&#xff09;&#xff1a;\u5373\u8bbe\u5907\u5728\u672c\u5730\u7f51\u7edc\u4e2d\u7684\u771f\u5b9e IP \u5730\u5740\u548c\u7aef\u53e3\u3002\u4f8b\u5982&#xff0c;\u5f53\u8bbe\u5907\u8fde\u63a5\u5230\u5bb6\u5ead\u5c40\u57df\u7f51\u65f6&#xff0c;\u83b7\u53d6\u5230\u7684 192.168.1.x \u8fd9\u7c7b\u5185\u7f51 IP \u5730\u5740\u53ca\u5176\u5bf9\u5e94\u7684\u7aef\u53e3&#xff0c;\u5c31\u6784\u6210\u4e86\u4e3b\u673a\u5019\u9009\u5730\u5740\u3002\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u8fde\u63a5\u65b9\u5f0f&#xff0c;\u82e5\u53cc\u65b9\u5904\u4e8e\u540c\u4e00\u5c40\u57df\u7f51\u5185&#xff0c;\u4f7f\u7528\u4e3b\u673a\u5019\u9009\u5730\u5740\u8fdb\u884c\u8fde\u63a5\u80fd\u5b9e\u73b0\u6700\u4f4e\u5ef6\u8fdf\u7684\u6570\u636e\u4f20\u8f93\u3002\u200b<\/li>\n<\/ul>\n<ul>\n<li>\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740&#xff08;Server-Reflexive Candidate&#xff0c;\u7b80\u79f0 SRF \u5019\u9009\u5730\u5740&#xff09;&#xff1a;\u5f53\u8bbe\u5907\u5904\u4e8e NAT&#xff08;Network Address Translation&#xff0c;\u7f51\u7edc\u5730\u5740\u8f6c\u6362&#xff09;\u8bbe\u5907\u4e4b\u540e\u65f6&#xff0c;\u8bbe\u5907\u81ea\u8eab\u65e0\u6cd5\u76f4\u63a5\u83b7\u53d6\u5176\u5728\u516c\u7f51\u4e2d\u7684\u5730\u5740\u3002\u6b64\u65f6&#xff0c;\u8bbe\u5907\u4f1a\u5411 STUN&#xff08;Session Traversal Utilities for NAT&#xff0c;NAT \u4f1a\u8bdd\u904d\u5386\u5b9e\u7528\u5de5\u5177&#xff09;\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u3002STUN \u670d\u52a1\u5668\u63a5\u6536\u5230\u8bf7\u6c42\u540e&#xff0c;\u6839\u636e NAT \u8bbe\u5907\u6620\u5c04\u7684\u516c\u7f51\u5730\u5740\u548c\u7aef\u53e3\u4fe1\u606f&#xff0c;\u5c06\u5176\u8fd4\u56de\u7ed9\u8bbe\u5907&#xff0c;\u8fd9\u4e2a\u8fd4\u56de\u7684\u516c\u7f51\u5730\u5740\u548c\u7aef\u53e3\u5c31\u6210\u4e3a\u4e86\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740\u3002\u4f8b\u5982&#xff0c;\u8bbe\u5907\u5728\u5185\u7f51\u7684 IP \u5730\u5740\u662f 192.168.1.100:5000&#xff0c;\u7ecf\u8fc7 NAT \u8f6c\u6362\u540e&#xff0c;\u5728\u516c\u7f51\u7684\u5730\u5740\u53d8\u4e3a 123.123.123.123:6000&#xff0c;STUN \u670d\u52a1\u5668\u5c06 123.123.123.123:6000 \u8fd4\u56de\u7ed9\u8bbe\u5907&#xff0c;\u4f5c\u4e3a\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740 \u3002\u200b<\/li>\n<\/ul>\n<ul>\n<li>\u4e2d\u7ee7\u5019\u9009\u5730\u5740&#xff08;Relay Candidate&#xff09;&#xff1a;\u5728\u590d\u6742\u7f51\u7edc\u73af\u5883\u4e0b&#xff0c;\u5f53\u901a\u8fc7\u4e3b\u673a\u5019\u9009\u5730\u5740\u548c\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740\u90fd\u65e0\u6cd5\u5efa\u7acb\u8fde\u63a5\u65f6&#xff0c;\u5c31\u9700\u8981\u501f\u52a9 TURN&#xff08;Traversal Using Relays around NAT&#xff0c;\u4f7f\u7528\u4e2d\u7ee7\u7a7f\u8d8a NAT&#xff09;\u670d\u52a1\u5668\u3002TURN \u670d\u52a1\u5668\u4f1a\u4e3a\u8bbe\u5907\u5206\u914d\u4e00\u4e2a\u516c\u7f51\u5730\u5740\u548c\u7aef\u53e3&#xff0c;\u8fd9\u4e2a\u5730\u5740\u548c\u7aef\u53e3\u5c31\u662f\u4e2d\u7ee7\u5019\u9009\u5730\u5740\u3002\u8bbe\u5907\u5c06\u6570\u636e\u53d1\u9001\u7ed9 TURN \u670d\u52a1\u5668&#xff0c;\u518d\u7531 TURN \u670d\u52a1\u5668\u8f6c\u53d1\u7ed9\u901a\u4fe1\u5bf9\u65b9&#xff0c;\u5b9e\u73b0\u6570\u636e\u7684\u4e2d\u7ee7\u4f20\u8f93\u3002\u200b<\/li>\n<\/ul>\n<p>\u5019\u9009\u5730\u5740\u4ea4\u6362&#xff1a;<\/p>\n<p>\u901a\u8fc7\u4fe1\u4ee4\u534f\u8bae&#xff08;\u5982 SIP\u3001WebRTC \u7b49&#xff09;&#xff0c;\u6bcf\u4e2a\u7aef\u70b9\u5c06\u5176\u5019\u9009\u5730\u5740\u53d1\u9001\u7ed9\u5bf9\u65b9&#xff0c;\u786e\u4fdd\u53cc\u65b9\u90fd\u80fd\u5f97\u5230\u5f7c\u6b64\u7684\u5019\u9009\u5730\u5740\u3002<\/p>\n<p>\u5019\u9009\u5730\u5740\u6536\u96c6\u4e0e\u4ea4\u6362\u793a\u610f\u56fe\u5982\u4e0b&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"2326\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250520011812-682bd854accb3.png\" width=\"2480\" \/><\/p>\n<p>\u5019\u9009\u5730\u5740\u68c0\u67e5&#xff1a;\u200b<\/p>\n<p>\u6536\u96c6\u5230\u5019\u9009\u5730\u5740\u540e&#xff0c;ICE \u4f1a\u5bf9\u8fd9\u4e9b\u5730\u5740\u8fdb\u884c\u68c0\u67e5&#xff0c;\u5224\u65ad\u5176\u53ef\u7528\u6027\u3002ICE \u91c7\u7528 \u201c\u5019\u9009\u5730\u5740\u5bf9\u201d \u7684\u65b9\u5f0f\u8fdb\u884c\u68c0\u67e5&#xff0c;\u5373\u4ece\u4e24\u7aef\u8bbe\u5907\u7684\u5019\u9009\u5730\u5740\u4e2d\u5404\u9009\u53d6\u4e00\u4e2a\u5730\u5740\u7ec4\u6210\u4e00\u5bf9&#xff0c;\u7136\u540e\u4f7f\u7528 STUN \u534f\u8bae\u8fdb\u884c\u8fde\u901a\u6027\u6d4b\u8bd5\u3002\u4f8b\u5982&#xff0c;A \u7aef\u7684\u4e00\u4e2a\u5019\u9009\u5730\u5740\u4e0e B \u7aef\u7684\u4e00\u4e2a\u5019\u9009\u5730\u5740\u7ec4\u6210\u4e00\u5bf9&#xff0c;ICE \u4f1a\u5c1d\u8bd5\u5728\u8fd9\u4e24\u4e2a\u5730\u5740\u4e4b\u95f4\u53d1\u9001\u63a2\u6d4b\u6570\u636e\u5305&#xff08;\u76f8\u5bf9\u7aef\u4e0a\u65b9\u53d1STUN Binding\u8bf7\u6c42&#xff09;&#xff0c;\u6839\u636e\u662f\u5426\u80fd\u6536\u5230\u54cd\u5e94&#xff08;STUN\u56db\u6b21\u63e1\u624b&#xff09;\u6765\u5224\u65ad\u8be5\u5730\u5740\u5bf9\u662f\u5426\u53ef\u7528\u3002\u5728\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d&#xff0c;ICE \u4f1a\u9075\u5faa\u4e00\u5b9a\u7684\u4f18\u5148\u7ea7\u987a\u5e8f&#xff08;ICE\u89c4\u5b9a\u4e86\u4f18\u5148\u7ea7\u8ba1\u7b97\u65b9\u6cd5&#xff0c;\u4e24\u7aef\u8ba1\u7b97\u5f97\u5230\u7684\u4f18\u5148\u7ea7\u76f8\u540c&#xff09;&#xff0c;\u4f18\u5148\u6d4b\u8bd5\u4e3b\u673a\u5019\u9009\u5730\u5740&#xff0c;\u56e0\u4e3a\u5176\u7406\u8bba\u4e0a\u80fd\u63d0\u4f9b\u6700\u4f73\u7684\u4f20\u8f93\u6027\u80fd&#xff1b;\u82e5\u4e3b\u673a\u5019\u9009\u5730\u5740\u6d4b\u8bd5\u5931\u8d25&#xff0c;\u518d\u4f9d\u6b21\u6d4b\u8bd5\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740\u548c\u4e2d\u7ee7\u5019\u9009\u5730\u5740\u3002\u200b<\/p>\n<p>\u8fde\u63a5\u5efa\u7acb&#xff1a;\u200b<\/p>\n<p>\u7ecf\u8fc7\u5019\u9009\u5730\u5740\u68c0\u67e5&#xff0c;ICE \u4f1a\u4ece\u6240\u6709\u53ef\u7528\u7684\u5019\u9009\u5730\u5740\u5bf9\u4e2d&#xff0c;\u7b5b\u9009\u51fa\u6700\u4f18\u7684\u4e00\u5bf9\u6765\u5efa\u7acb\u8fde\u63a5\u3002\u6700\u4f18\u5730\u5740\u5bf9\u7684\u9009\u62e9\u901a\u5e38\u57fa\u4e8e\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\u3001\u5ef6\u8fdf\u7b49\u56e0\u7d20\u3002\u4e00\u65e6\u786e\u5b9a\u4e86\u6700\u4f18\u5730\u5740\u5bf9&#xff0c;\u901a\u4fe1\u53cc\u65b9\u5c31\u4f1a\u57fa\u4e8e\u8be5\u5730\u5740\u5bf9\u8fdb\u884c\u6570\u636e\u4f20\u8f93&#xff0c;\u6b63\u5f0f\u5efa\u7acb\u8d77 WebRTC \u901a\u8bdd\u7684\u6570\u636e\u94fe\u8def\u3002\u200b<\/p>\n<h4>2. \u7f51\u7edc\u534f\u5546\u4e0e\u5176\u4ed6\u7ec4\u4ef6\u7684\u534f\u540c\u5de5\u4f5c\u200b<\/h4>\n<p>\u7f51\u7edc\u534f\u5546\u5e76\u975e\u5b64\u7acb\u8fdb\u884c&#xff0c;\u800c\u662f\u4e0e WebRTC \u7684\u5176\u4ed6\u7ec4\u4ef6\u7d27\u5bc6\u534f\u4f5c\u3002\u5728\u5a92\u4f53\u534f\u5546\u9636\u6bb5\u786e\u5b9a\u4e86\u5a92\u4f53\u683c\u5f0f\u548c\u7f16\u89e3\u7801\u5668\u540e&#xff0c;\u7f51\u7edc\u534f\u5546\u8981\u786e\u4fdd\u8fd9\u4e9b\u5a92\u4f53\u6570\u636e\u80fd\u591f\u987a\u5229\u4f20\u8f93\u3002\u4f8b\u5982&#xff0c;\u5bf9\u4e8e\u9ad8\u7801\u7387\u7684\u89c6\u9891\u6570\u636e\u4f20\u8f93&#xff0c;\u7f51\u7edc\u534f\u5546\u9700\u8981\u9009\u62e9\u5e26\u5bbd\u8db3\u591f\u4e14\u7a33\u5b9a\u7684\u4f20\u8f93\u8def\u5f84&#xff1b;\u5bf9\u4e8e\u5b9e\u65f6\u6027\u8981\u6c42\u6781\u9ad8\u7684\u97f3\u9891\u6570\u636e&#xff0c;\u7f51\u7edc\u534f\u5546\u8981\u5c3d\u91cf\u964d\u4f4e\u4f20\u8f93\u5ef6\u8fdf\u3002\u200b<\/p>\n<p>\u540c\u65f6&#xff0c;\u7f51\u7edc\u534f\u5546\u4e0e STUN\u3001TURN \u670d\u52a1\u5668\u5bc6\u5207\u914d\u5408\u3002\u5f53\u9700\u8981\u83b7\u53d6\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740\u65f6&#xff0c;ICE \u4f1a\u4e0e STUN \u670d\u52a1\u5668\u4ea4\u4e92&#xff1b;\u5728\u4f7f\u7528\u4e2d\u7ee7\u5019\u9009\u5730\u5740\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u65f6&#xff0c;\u5219\u4f9d\u8d56 TURN \u670d\u52a1\u5668\u7684\u4e2d\u7ee7\u8f6c\u53d1\u529f\u80fd\u3002\u6b64\u5916&#xff0c;\u7f51\u7edc\u534f\u5546\u7684\u7ed3\u679c\u4e5f\u4f1a\u53cd\u9988\u7ed9\u4fe1\u4ee4\u670d\u52a1\u5668&#xff0c;\u4fe1\u4ee4\u670d\u52a1\u5668\u4f1a\u5c06\u76f8\u5173\u7684\u7f51\u7edc\u8fde\u63a5\u4fe1\u606f\u4f20\u9012\u7ed9\u901a\u4fe1\u53cc\u65b9&#xff0c;\u786e\u4fdd\u53cc\u65b9\u90fd\u77e5\u6653\u6570\u636e\u4f20\u8f93\u7684\u8def\u5f84\u548c\u65b9\u5f0f&#xff0c;\u4ece\u800c\u5b9e\u73b0\u65e0\u7f1d\u7684\u5b9e\u65f6\u901a\u4fe1\u3002\u200b<\/p>\n<p>\u7f51\u7edc\u534f\u5546\u901a\u8fc7 ICE \u6846\u67b6\u7684\u9ad8\u6548\u8fd0\u4f5c&#xff0c;\u7ed3\u5408 WebRTC \u5176\u4ed6\u7ec4\u4ef6\u7684\u534f\u540c\u914d\u5408&#xff0c;\u80fd\u591f\u5728\u590d\u6742\u591a\u53d8\u7684\u7f51\u7edc\u73af\u5883\u4e2d&#xff0c;\u4e3a WebRTC \u901a\u8bdd\u89c4\u5212\u51fa\u4e00\u6761\u7a33\u5b9a\u3001\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u8def\u5f84&#xff0c;\u4fdd\u969c\u97f3\u89c6\u9891\u6570\u636e\u7684\u6d41\u7545\u4f20\u8f93\u3002\u200b<\/p>\n<h3>\u4e09\u3001\u7f51\u7edc\u7a7f\u8d8a&#xff08;STUN&#xff09;&#xff1a;\u7a81\u7834\u7f51\u7edc\u9650\u5236\u200b<\/h3>\n<p>\u5728\u5b9e\u9645\u7f51\u7edc\u73af\u5883\u4e2d&#xff0c;\u901a\u4fe1\u53cc\u65b9\u5f80\u5f80\u5904\u4e8e\u4e0d\u540c\u7684\u7f51\u7edc\u73af\u5883&#xff0c;\u5982 NAT&#xff08;Network Address Translation&#xff0c;\u7f51\u7edc\u5730\u5740\u8f6c\u6362&#xff09;\u540e\u9762\u3002NAT \u4f1a\u9690\u85cf\u5185\u90e8\u7f51\u7edc\u8bbe\u5907\u7684\u771f\u5b9e IP \u5730\u5740&#xff0c;\u5bfc\u81f4\u5916\u90e8\u8bbe\u5907\u65e0\u6cd5\u76f4\u63a5\u4e0e\u5185\u90e8\u8bbe\u5907\u5efa\u7acb\u8fde\u63a5&#xff0c;\u8fd9\u5c31\u9700\u8981\u7f51\u7edc\u7a7f\u8d8a\u6280\u672f\u6765\u89e3\u51b3\u3002\u200b<\/p>\n<p>STUN&#xff08;Session Traversal Utilities for NAT&#xff0c;NAT \u4f1a\u8bdd\u904d\u5386\u5b9e\u7528\u5de5\u5177&#xff09;\u662f WebRTC \u4e2d\u5e38\u7528\u7684\u7f51\u7edc\u7a7f\u8d8a\u6280\u672f\u3002STUN \u670d\u52a1\u5668\u7684\u4f5c\u7528\u662f\u5e2e\u52a9\u5ba2\u6237\u7aef\u83b7\u53d6\u5176\u5728\u516c\u7f51\u4e2d\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u3002\u5ba2\u6237\u7aef\u5411 STUN \u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42&#xff0c;STUN \u670d\u52a1\u5668\u63a5\u6536\u5230\u8bf7\u6c42\u540e&#xff0c;\u6839\u636e NAT \u8bbe\u5907\u6620\u5c04\u7684\u516c\u7f51\u5730\u5740\u548c\u7aef\u53e3\u4fe1\u606f&#xff0c;\u5c06\u5176\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u83b7\u53d6\u5230\u516c\u7f51\u5730\u5740\u540e&#xff0c;\u5c31\u53ef\u4ee5\u5c06\u8be5\u5730\u5740\u4f5c\u4e3a\u5019\u9009\u5730\u5740&#xff0c;\u4e0e\u5176\u4ed6\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5\u5c1d\u8bd5\u3002\u8fd9\u6837&#xff0c;\u5373\u4f7f\u5ba2\u6237\u7aef\u4f4d\u4e8e NAT \u8bbe\u5907\u4e4b\u540e&#xff0c;\u4e5f\u80fd\u5b9e\u73b0\u4e0e\u5916\u90e8\u8bbe\u5907\u7684\u901a\u4fe1\u3002\u200b<\/p>\n<h3>\u56db\u3001\u4e2d\u7ee7\u8f6c\u53d1&#xff08;TURN&#xff09;&#xff1a;\u4fdd\u969c\u901a\u4fe1\u7545\u901a\u200b<\/h3>\n<p>\u5f53 STUN \u65e0\u6cd5\u5b9e\u73b0\u76f4\u63a5\u8fde\u63a5\u65f6&#xff0c;\u5c31\u9700\u8981\u501f\u52a9 TURN&#xff08;Traversal Using Relays around NAT&#xff0c;\u4f7f\u7528\u4e2d\u7ee7\u7a7f\u8d8a NAT&#xff09;\u670d\u52a1\u5668\u6765\u8fdb\u884c\u4e2d\u7ee7\u8f6c\u53d1\u3002TURN \u670d\u52a1\u5668\u5145\u5f53\u6570\u636e\u4e2d\u8f6c\u7ad9\u7684\u89d2\u8272&#xff0c;\u63a5\u6536\u6765\u81ea\u4e00\u7aef\u7684\u6570\u636e&#xff0c;\u7136\u540e\u8f6c\u53d1\u7ed9\u53e6\u4e00\u7aef\u3002\u200b<\/p>\n<p>TURN \u670d\u52a1\u5668\u4e0d\u4ec5\u53ef\u4ee5\u5904\u7406\u97f3\u89c6\u9891\u6570\u636e&#xff0c;\u8fd8\u80fd\u5904\u7406\u5176\u4ed6\u7c7b\u578b\u7684\u5a92\u4f53\u6570\u636e\u3002\u867d\u7136\u4f7f\u7528 TURN \u670d\u52a1\u5668\u4f1a\u589e\u52a0\u4e00\u5b9a\u7684\u4f20\u8f93\u5ef6\u8fdf\u548c\u670d\u52a1\u5668\u8d1f\u8f7d&#xff0c;\u4f46\u5728\u590d\u6742\u7684\u7f51\u7edc\u73af\u5883\u4e0b&#xff0c;\u5b83\u662f\u786e\u4fdd\u901a\u4fe1\u80fd\u591f\u987a\u5229\u8fdb\u884c\u7684\u91cd\u8981\u624b\u6bb5\u3002\u4f8b\u5982&#xff0c;\u5f53\u53cc\u65b9\u90fd\u5904\u4e8e\u5bf9\u79f0 NAT \u540e\u9762&#xff0c;\u65e0\u6cd5\u901a\u8fc7 STUN \u76f4\u63a5\u5efa\u7acb\u8fde\u63a5\u65f6&#xff0c;TURN \u670d\u52a1\u5668\u5c31\u6210\u4e3a\u4e86\u5b9e\u73b0\u901a\u4fe1\u7684\u5173\u952e\u3002\u200b<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"407\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250520011814-682bd856d0ef9.png\" width=\"692\" \/><\/p>\n<p>\u6709\u5173STUN,TURN\u7b49\u8be6\u7ec6\u7ec6\u8282\u8bf7\u53c2\u8003\u6211\u7684\u6587\u7ae0&#xff1a;WebRTC:\u53bb\u4e2d\u5fc3\u5316\u7f51\u7edcP2P\u6846\u67b6\u89e3\u6790-CSDN\u535a\u5ba2<\/p>\n<h3>\u4e94\u3001\u4e00\u5bf9\u4e00\u901a\u8bdd\u4fe1\u4ee4\u670d\u52a1\u5668\u65f6\u5e8f\u200b<\/h3>\n<p>\u4fe1\u4ee4\u670d\u52a1\u5668\u5728 WebRTC \u4e00\u5bf9\u4e00\u901a\u8bdd\u4e2d\u8d77\u7740\u6865\u6881\u4f5c\u7528&#xff0c;\u8d1f\u8d23\u4f20\u9012\u53cc\u65b9\u7684\u5a92\u4f53\u534f\u5546\u4fe1\u606f\u3001\u7f51\u7edc\u534f\u5546\u4fe1\u606f\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u5bf9\u4e00\u901a\u8bdd\u4fe1\u4ee4\u670d\u52a1\u5668\u65f6\u5e8f\u7684\u8be6\u7ec6\u6d41\u7a0b&#xff0c;\u901a\u8fc7\u65f6\u5e8f\u56fe\u6765\u76f4\u89c2\u5448\u73b0&#xff1a;<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"4311\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250520011814-682bd856e5672.png\" width=\"2328\" \/><\/p>\n<h4>1. \u8fde\u63a5\u521d\u59cb\u5316\u9636\u6bb5\u200b<\/h4>\n<p>\u547c\u53eb\u65b9 A \u548c\u63a5\u6536\u65b9 B \u9996\u5148\u5206\u522b\u4e0e\u4fe1\u4ee4\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u3002A \u5411\u4fe1\u4ee4\u670d\u52a1\u5668\u53d1\u9001\u8fde\u63a5\u8bf7\u6c42&#xff0c;\u643a\u5e26\u81ea\u8eab\u7528\u6237 ID&#xff08;\u5982 userA&#xff09;&#xff0c;\u4fe1\u4ee4\u670d\u52a1\u5668\u63a5\u6536\u8bf7\u6c42\u540e\u8fdb\u884c\u5904\u7406&#xff0c;\u4e3a A \u5206\u914d\u552f\u4e00\u7684\u4f1a\u8bdd ID&#xff08;\u5982 session_123&#xff09;&#xff0c;\u5e76\u8fd4\u56de\u8fde\u63a5\u6210\u529f\u7684\u54cd\u5e94\u3002<\/p>\n<p>\u7d27\u63a5\u7740&#xff0c;B \u4e5f\u5411\u4fe1\u4ee4\u670d\u52a1\u5668\u53d1\u9001\u8fde\u63a5\u8bf7\u6c42&#xff0c;\u9644\u5e26\u5176\u7528\u6237 ID&#xff08;\u5982 userB&#xff09;&#xff0c;\u4fe1\u4ee4\u670d\u52a1\u5668\u540c\u6837\u4e3a B \u5206\u914d\u4f1a\u8bdd ID&#xff08;\u5982 session_456&#xff09;&#xff0c;\u5e76\u544a\u77e5 B \u8fde\u63a5\u6210\u529f\u3002\u6b64\u65f6&#xff0c;\u4fe1\u4ee4\u670d\u52a1\u5668\u8bb0\u5f55\u4e0b A \u548c B \u8fd9\u4e24\u4e2a\u5728\u7ebf\u7528\u6237\u7684\u76f8\u5173\u4fe1\u606f&#xff0c;\u4e3a\u540e\u7eed\u7684\u901a\u8bdd\u4ea4\u4e92\u505a\u597d\u51c6\u5907\u3002<\/p>\n<h4>2. \u547c\u53eb\u53d1\u8d77\u4e0e\u63a5\u53d7\u9636\u6bb5<\/h4>\n<p>A \u51b3\u5b9a\u53d1\u8d77\u547c\u53eb&#xff0c;\u5411\u4fe1\u4ee4\u670d\u52a1\u5668\u53d1\u9001\u547c\u53eb\u8bf7\u6c42&#xff0c;\u660e\u786e\u6307\u5b9a\u547c\u53eb\u7684\u76ee\u6807\u7528\u6237\u4e3a B\u3002\u4fe1\u4ee4\u670d\u52a1\u5668\u63a5\u6536\u5230\u8be5\u8bf7\u6c42\u540e&#xff0c;\u8fc5\u901f\u5c06\u5176\u8f6c\u53d1\u7ed9 B&#xff0c;\u540c\u65f6\u9644\u4e0a A \u7684\u76f8\u5173\u5143\u6570\u636e&#xff08;\u5982\u7528\u6237\u6807\u8bc6\u3001\u8bbe\u5907\u4fe1\u606f\u7b49&#xff09;\u3002<\/p>\n<p>B \u6536\u5230\u547c\u53eb\u8bf7\u6c42\u540e&#xff0c;\u5728\u5176\u8bbe\u5907\u4e0a\u5c55\u793a\u6765\u7535\u63d0\u793a&#xff08;\u5982\u54cd\u94c3\u3001\u663e\u793a\u6765\u7535\u754c\u9762\u7b49&#xff09;\u3002\u5f53 B \u51b3\u5b9a\u63a5\u53d7\u547c\u53eb\u65f6&#xff0c;\u5411\u4fe1\u4ee4\u670d\u52a1\u5668\u53d1\u9001\u63a5\u53d7\u547c\u53eb\u7684\u54cd\u5e94\u3002\u4fe1\u4ee4\u670d\u52a1\u5668\u6536\u5230 B \u7684\u54cd\u5e94\u540e&#xff0c;\u53ca\u65f6\u8f6c\u53d1\u7ed9 A&#xff0c;\u901a\u77e5 A \u547c\u53eb\u5df2\u88ab\u63a5\u53d7&#xff0c;\u53cc\u65b9\u5373\u5c06\u8fdb\u5165\u901a\u8bdd\u6d41\u7a0b\u3002<\/p>\n<h4>3.\u5a92\u4f53\u534f\u5546\u4fe1\u4ee4\u4ea4\u4e92\u200b<\/h4>\n<p>A \u5728\u5f97\u77e5\u547c\u53eb\u88ab\u63a5\u53d7\u540e&#xff0c;\u8c03\u7528\u76f8\u5173 API \u521b\u5efa SDP Offer&#xff0c;\u5176\u4e2d\u5305\u542b\u4e86\u81ea\u8eab\u63d0\u8bae\u7684\u5a92\u4f53\u53c2\u6570&#xff0c;\u4f8b\u5982\u89c6\u9891\u5206\u8fa8\u7387\u4e3a 1080p&#xff0c;\u97f3\u9891\u7f16\u7801\u683c\u5f0f\u4e3a Opus&#xff0c;\u89c6\u9891\u7f16\u7801\u683c\u5f0f\u4e3a H.264 \u7b49\u3002A \u5c06\u751f\u6210\u7684 SDP Offer \u53d1\u9001\u7ed9\u4fe1\u4ee4\u670d\u52a1\u5668&#xff0c;\u4fe1\u4ee4\u670d\u52a1\u5668\u518d\u5c06\u5176\u8f6c\u53d1\u7ed9 B\u3002<\/p>\n<p>B \u63a5\u6536\u5230 SDP Offer \u540e&#xff0c;\u5bf9\u5176\u4e2d\u7684\u53c2\u6570\u8fdb\u884c\u89e3\u6790&#xff0c;\u5e76\u7ed3\u5408\u81ea\u8eab\u8bbe\u5907\u548c\u7f51\u7edc\u60c5\u51b5&#xff0c;\u9009\u62e9\u5408\u9002\u7684\u5a92\u4f53\u53c2\u6570&#xff0c;\u6bd4\u5982\u5c06\u89c6\u9891\u5206\u8fa8\u7387\u8c03\u6574\u4e3a 720p&#xff0c;\u97f3\u9891\u548c\u89c6\u9891\u7f16\u7801\u683c\u5f0f\u4fdd\u6301\u4e3a Opus \u548c H.264&#xff0c;\u7136\u540e\u521b\u5efa SDP Answer\u3002B \u5c06 SDP Answer \u53d1\u9001\u7ed9\u4fe1\u4ee4\u670d\u52a1\u5668&#xff0c;\u4fe1\u4ee4\u670d\u52a1\u5668\u518d\u8f6c\u53d1\u7ed9 A\u3002\u81f3\u6b64&#xff0c;\u53cc\u65b9\u901a\u8fc7\u4fe1\u4ee4\u670d\u52a1\u5668\u5b8c\u6210\u4e86\u5a92\u4f53\u534f\u5546&#xff0c;\u786e\u5b9a\u4e86\u6700\u7ec8\u4f7f\u7528 720p \u5206\u8fa8\u7387&#xff0c;\u4ee5\u53ca H.264\/Opus \u7f16\u7801\u683c\u5f0f\u8fdb\u884c\u97f3\u89c6\u9891\u4f20\u8f93\u3002<\/p>\n<h4>4. \u7f51\u7edc\u534f\u5546\u4fe1\u4ee4\u4ea4\u4e92\u200b<\/h4>\n<p>\u4e3a\u4e86\u5efa\u7acb\u6709\u6548\u7684\u7f51\u7edc\u8fde\u63a5&#xff0c;A \u548c B \u9700\u8981\u8fdb\u884c\u7f51\u7edc\u534f\u5546&#xff0c;\u4ea4\u6362 ICE \u5019\u9009\u5730\u5740\u3002A \u5148\u5411 STUN \u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42&#xff0c;\u83b7\u53d6\u516c\u7f51\u5730\u5740&#xff0c;\u5373\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740&#xff08;SRF \u5019\u9009&#xff09;&#xff0c;STUN \u670d\u52a1\u5668\u8fd4\u56de\u5bf9\u5e94\u7684\u516c\u7f51 IP&#xff08;\u5982 1.2.3.4:5000 &#xff09;\u3002\u5728\u4e00\u4e9b\u590d\u6742\u7684\u7f51\u7edc\u73af\u5883\u4e0b&#xff0c;A \u8fd8\u4f1a\u5411 TURN \u670d\u52a1\u5668\u8bf7\u6c42\u4e2d\u7ee7\u5730\u5740&#xff08;\u53ef\u9009\u64cd\u4f5c&#xff09;&#xff0c;TURN \u670d\u52a1\u5668\u8fd4\u56de\u4e2d\u7ee7\u5019\u9009\u5730\u5740&#xff08;\u5982\u4e2d\u7ee7 IP: 5.6.7.8:6000 &#xff09;\u3002A \u5c06\u6536\u96c6\u5230\u7684\u6240\u6709 ICE \u5019\u9009\u5730\u5740\u6574\u7406\u6210\u5217\u8868&#xff0c;\u53d1\u9001\u7ed9\u4fe1\u4ee4\u670d\u52a1\u5668\u3002<\/p>\n<p>\u540c\u6837\u5730&#xff0c;B \u4e5f\u5411 STUN \u670d\u52a1\u5668\u8bf7\u6c42\u516c\u7f51\u5730\u5740&#xff0c;\u83b7\u53d6\u81ea\u8eab\u7684 SRF \u5019\u9009&#xff08;\u5982\u516c\u7f51 IP: 9.8.7.6:5500 &#xff09;&#xff0c;\u5e76\u5728\u5fc5\u8981\u65f6\u5411 TURN \u670d\u52a1\u5668\u8bf7\u6c42\u4e2d\u7ee7\u5730\u5740&#xff08;\u5982\u4e2d\u7ee7 IP: 4.3.2.1:6500 &#xff09;&#xff0c;\u7136\u540e\u5c06\u81ea\u5df1\u7684 ICE \u5019\u9009\u5730\u5740\u5217\u8868\u53d1\u9001\u7ed9\u4fe1\u4ee4\u670d\u52a1\u5668\u3002\u4fe1\u4ee4\u670d\u52a1\u5668\u5206\u522b\u5c06 A \u548c B \u7684\u5019\u9009\u5730\u5740\u5217\u8868\u8f6c\u53d1\u7ed9\u5bf9\u65b9&#xff0c;\u4f7f\u5f97\u53cc\u65b9\u90fd\u83b7\u53d6\u5230\u4e86\u5f7c\u6b64\u7684\u7f51\u7edc\u8fde\u63a5\u5019\u9009\u5730\u5740\u4fe1\u606f\u3002<\/p>\n<h4>5. ICE \u8fde\u63a5\u5efa\u7acb\u9636\u6bb5<\/h4>\n<p>\u5728\u62e5\u6709\u4e86\u53cc\u65b9\u7684 ICE \u5019\u9009\u5730\u5740\u540e&#xff0c;\u5f00\u59cb\u8fdb\u884c ICE \u8fde\u63a5\u5efa\u7acb\u8fc7\u7a0b\u3002A \u548c B \u4f1a\u4f9d\u6b21\u904d\u5386\u5019\u9009\u5730\u5740\u5bf9\u8fdb\u884c\u6d4b\u8bd5\u3002\u9996\u5148\u5c1d\u8bd5\u4f7f\u7528\u4e3b\u673a\u5019\u9009\u5730\u5740&#xff08;A &#8211; Host vs B &#8211; Host&#xff09;\u8fdb\u884c\u8fde\u63a5\u6d4b\u8bd5&#xff0c;\u5982\u679c\u53cc\u65b9\u5904\u4e8e\u540c\u4e00\u5c40\u57df\u7f51\u5185&#xff0c;\u76f4\u63a5\u8fde\u901a\u6210\u529f&#xff0c;B \u5411 A \u8fd4\u56de ICE \u54cd\u5e94&#xff0c;\u6807\u8bb0\u8fde\u63a5\u6210\u529f\u3002<\/p>\n<p>\u82e5\u5728\u540c\u4e00\u5c40\u57df\u7f51\u6d4b\u8bd5\u5931\u8d25&#xff0c;\u8bf4\u660e\u53cc\u65b9\u5904\u4e8e\u8de8 NAT \u7f51\u7edc\u73af\u5883&#xff0c;\u6b64\u65f6\u5c1d\u8bd5\u4f7f\u7528 STUN \u7a7f\u900f&#xff0c;\u5373\u4f7f\u7528\u670d\u52a1\u5668\u53cd\u5c04\u5019\u9009\u5730\u5740&#xff08;A &#8211; SRF vs B &#8211; SRF&#xff09;\u8fdb\u884c\u8fde\u63a5\u6d4b\u8bd5\u3002\u5982\u679c STUN \u7a7f\u900f\u6210\u529f&#xff0c;B \u540c\u6837\u5411 A \u8fd4\u56de ICE \u54cd\u5e94&#xff0c;\u786e\u8ba4\u8fde\u63a5\u6210\u529f\u3002<\/p>\n<p>\u82e5 STUN \u7a7f\u900f\u4e5f\u5931\u8d25&#xff0c;\u8868\u660e\u7f51\u7edc\u73af\u5883\u8f83\u4e3a\u590d\u6742&#xff0c;\u5c5e\u4e8e\u5bf9\u79f0 NAT \u60c5\u51b5&#xff0c;\u6b64\u65f6 A \u5c06\u6570\u636e\u53d1\u9001\u7ed9 TURN \u670d\u52a1\u5668\u7684\u4e2d\u7ee7\u5730\u5740&#xff0c;TURN \u670d\u52a1\u5668\u518d\u5c06\u6570\u636e\u8f6c\u53d1\u7ed9 B&#xff0c;\u901a\u8fc7\u4e2d\u7ee7\u65b9\u5f0f\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n<h4>6. \u901a\u8bdd\u63a7\u5236\u4fe1\u4ee4\u4ea4\u4e92\u200b<\/h4>\n<p>\u5f53 ICE \u8fde\u63a5\u6210\u529f\u5efa\u7acb\u540e&#xff0c;\u901a\u8bdd\u8fdb\u5165\u5a92\u4f53\u6d41\u4f20\u8f93\u9636\u6bb5\u3002A \u5f00\u59cb\u5411 B \u53d1\u9001\u89c6\u9891\u6d41&#xff08;\u91c7\u7528 720p \u5206\u8fa8\u7387\u3001H.264 \u7f16\u7801&#xff09;\u548c\u97f3\u9891\u6d41&#xff08;Opus \u7f16\u7801&#xff09;&#xff0c;\u540c\u65f6 B \u4e5f\u5411 A \u53d1\u9001\u76f8\u5e94\u7684\u89c6\u9891\u6d41\u548c\u97f3\u9891\u6d41&#xff0c;\u5b9e\u73b0\u4e86\u97f3\u89c6\u9891\u7684\u53cc\u5411\u5b9e\u65f6\u4f20\u8f93&#xff0c;\u53cc\u65b9\u80fd\u591f\u6b63\u5e38\u8fdb\u884c\u901a\u8bdd\u4ea4\u6d41\u3002<\/p>\n<h4>7. \u901a\u8bdd\u7ed3\u675f\u9636\u6bb5<\/h4>\n<p>\u5f53 A \u60f3\u8981\u7ed3\u675f\u901a\u8bdd\u65f6&#xff0c;\u5411\u4fe1\u4ee4\u670d\u52a1\u5668\u53d1\u9001\u6302\u65ad\u8bf7\u6c42\u3002\u4fe1\u4ee4\u670d\u52a1\u5668\u5c06\u8be5\u8bf7\u6c42\u8f6c\u53d1\u7ed9 B&#xff0c;B \u63a5\u6536\u5230\u8bf7\u6c42\u540e&#xff0c;\u505c\u6b62\u5a92\u4f53\u6d41\u7684\u4f20\u8f93&#xff0c;\u5e76\u5411\u4fe1\u4ee4\u670d\u52a1\u5668\u53d1\u9001\u6302\u65ad\u786e\u8ba4\u3002\u4fe1\u4ee4\u670d\u52a1\u5668\u518d\u5c06 B \u7684\u6302\u65ad\u786e\u8ba4\u8f6c\u53d1\u7ed9 A&#xff0c;A \u4e5f\u505c\u6b62\u5a92\u4f53\u6d41\u4f20\u8f93\u3002\u81f3\u6b64&#xff0c;\u53cc\u65b9\u7684\u901a\u8bdd\u7ed3\u675f&#xff0c;\u6574\u4e2a\u4e00\u5bf9\u4e00\u901a\u8bdd\u7684\u4fe1\u4ee4\u4ea4\u4e92\u6d41\u7a0b\u5b8c\u6210\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.3k\u6b21\uff0c\u70b9\u8d5e26\u6b21\uff0c\u6536\u85cf12\u6b21\u3002WebRTC\uff08Web Real-Time Communication\uff09\u662f\u4e00\u79cd\u5f00\u6e90\u6280\u672f\uff0c\u652f\u6301\u5728\u6d4f\u89c8\u5668\u4e2d\u5b9e\u73b0\u9ad8\u8d28\u91cf\u7684\u97f3\u89c6\u9891\u901a\u4fe1\uff0c\u65e0\u9700\u63d2\u4ef6\u3002\u672c\u6587\u6df1\u5165\u89e3\u6790\u4e86WebRTC\u901a\u8bdd\u7684\u6838\u5fc3\u539f\u7406\uff0c\u5305\u62ec\u5a92\u4f53\u534f\u5546\u3001\u7f51\u7edc\u534f\u5546\u3001\u7f51\u7edc\u7a7f\u8d8a\uff08STUN\uff09\u3001\u4e2d\u7ee7\u8f6c\u53d1\uff08TURN\uff09\u4ee5\u53ca\u4e00\u5bf9\u4e00\u901a\u8bdd\u4fe1\u4ee4\u670d\u52a1\u5668\u65f6\u5e8f\u3002\u5a92\u4f53\u534f\u5546\u901a\u8fc7SDP\u534f\u8bae\u786e\u5b9a\u901a\u4fe1\u53cc\u65b9\u7684\u5a92\u4f53\u683c\u5f0f\u3001\u7f16\u89e3\u7801\u5668\u7b49\u53c2\u6570\uff0c\u786e\u4fdd\u987a\u7545\u5bf9\u8bdd\u3002\u7f51\u7edc\u534f\u5546\u5229\u7528ICE\u6846\u67b6\u89c4\u5212\u6570\u636e\u4f20\u8f93\u8def\u5f84\uff0c\u6d89\u53ca\u5019\u9009\u5730\u5740\u7684\u6536\u96c6\u3001\u4ea4\u6362\u548c\u68c0\u67e5\u3002STUN\u548cTURN\u6280\u672f\u5206\u522b\u7528\u4e8e\u7a81\u7834\u7f51\u7edc\u9650\u5236\u548c\u4fdd\u969c\u901a\u4fe1\u7545\u901a\u3002\u4fe1\u4ee4\u670d\u52a1\u5668\u5219\u5728\u901a\u8bdd\u8fc7\u7a0b\u4e2d\u4f20\u9012\u534f\u5546\u4fe1<\/p>\n","protected":false},"author":2,"featured_media":38353,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1249,537,1180],"topic":[],"class_list":["post-38358","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-p2p","tag-webrtc","tag-1180"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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