带有协商后的服务器端口的UDP流播送

The only significant addition to RFC 2326 is that when receiving a broadcast over UDP, the QuickTime server uses SETUP with mode=RECORD to generate and send back to the client a UDP port to use when the SDP contains a port value of 0 for a given stream. Otherwise, the server uses the SDP-defined port to receive the streams. The server's receive port is declared in the SETUP response transport header. The format looks exactly as if a client were performing a SETUP request for a stream from the server and then receiving the port the server is sending from.

客户端发送给服务器端：

ANNOUNCE rtsp://127.0.0.1/mystream.sdp RTSP/1.0\r\n
    CSeq: 1\r\n
    Content-Type: application/sdp\r\n
    User-Agent: QTS (qtver=6.1;cpu=PPC;os=Mac 10.2.3)\r\n
    Content-Length: 790\r\n
    \r\n
    c=IN IP4
    127.0.0.1\ra=x-qt-text-nam:test\ra=x-qt-text-cpy:apple\ra=x-qt-text-aut:john\ra=x-qt-text-inf:none\ra=mpeg4-iod:"data:application/mpeg4-iod;base64,AoF/
    AE8BAQEBAQOBEgABQHRkYXRhOmFwcGxpY2F0aW9uL21wZWc0LW9kLWF1O2Jhc2U2NCxBVGdC
    R3dVZkF4Y0F5U1FBWlFRTklCRUFGM0FBQVBvQUFBRERVQVlCQkFFWkFwOERGUUJsQlFRTlFC
    VUFCOUFBQUQ2QUFBQStnQVlCQXc9PQQNAQUAAMgAAAAAAAAAAAYJAQAAAAAAAAAAA2EAAkA+
    ZGF0YTphcHBsaWNhdGlvbi9tcGVnNC1iaWZzLWF1O2Jhc2U2NCx3QkFTZ1RBcUJYSmhCSWhR
    UlFVL0FBPT0EEgINAAAUAAAAAAAAAAAFAwAAQAYJAQAAAAAAAAAA"\ra=isma-
    compliance:1,1.0,1\rm=audio 0 RTP/AVP 96\ra=rtpmap:96
    X-QT/8000/1\ra=control:trackid=1\rm=video 0 RTP/AVP 97\ra=rtpmap:97
    MP4V-ES\ra=fmtp:97
    profile-level-id=1;config=000001B0F3000001B50EE040C0CF0000010000000120008440FA285020F0
    A31F\ra=mpeg4-esid:201\ra=cliprect:0,0,240,320\ra=control:trackid=2\r

服务器端发送给客户端：

RTSP/1.0 200 OK\r\n
    Server: QTSS/4.1.3.x (Build/425; Platform/MacOSX; Release/Development;)\r\n
    Cseq: 1\r\n
    \r\n

客户端发送给服务器端：

OPTIONS rtsp://127.0.0.1/mystream.sdp RTSP/1.0\r\n
    CSeq: 2\r\n
    User-Agent: QTS (qtver=6.1;cpu=PPC;os=Mac 10.2.3)\r\n
    \r\n

服务器端发送给客户端：

RTSP/1.0 200 OK\r\n
    Server: QTSS/4.1.3.x (Build/425; Platform/MacOSX; Release/Development;)\r\n
    Cseq: 2\r\n
    Public: DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, ANNOUNCE, SET_PARAMETER, RECORD\r\n
    \r\n

客户端发送给服务器端：

SETUP rtsp://127.0.0.1/mystream.sdp/trackid=1 RTSP/1.0\r\n
    CSeq: 3\r\n
    Transport: RTP/AVP;unicast;client_port=6974-6975;mode=record\r\n
    User-Agent: QTS (qtver=6.1;cpu=PPC;os=Mac 10.2.3)\r\n
    Accept-Language: en-US\r\n
    \r\n

服务器端发送给客户端：

RTSP/1.0 200 OK\r\n
    Server: QTSS/4.1.3.x (Build/425; Platform/MacOSX; Release/Development;)\r\n
    Cseq: 3\r\n
    Cache-Control: no-cache\r\n
    Session: 1549167172936112945\r\n
    Date: Thu, 13 Feb 2003 21:59:22 GMT\r\n
    Expires: Thu, 13 Feb 2003 21:59:22 GMT\r\n
    Transport:
    RTP/AVP;unicast;client_port=6974-6975;mode=record;source=127.0.0.1;
    server_port=6976-6977\r\n
    \r\n

客户端发送给服务器端：

SETUP rtsp://127.0.0.1/mystream.sdp/trackid=2 RTSP/1.0\r\n
    CSeq: 4\r\n
    Transport: RTP/AVP;unicast;client_port=6972-6973;mode=record\r\n
    Session: 1549167172936112945\r\n
    User-Agent: QTS (qtver=6.1;cpu=PPC;os=Mac 10.2.3)\r\n
    Accept-Language: en-US\r\n
    \r\n

服务器端发送给客户端：

RTSP/1.0 200 OK\r\n
    Server: QTSS/4.1.3.x (Build/425; Platform/MacOSX; Release/Development;)\r\n
    Cseq: 4\r\n
    Session: 1549167172936112945\r\n
    Cache-Control: no-cache\r\n
    Date: Thu, 13 Feb 2003 21:59:22 GMT\r\n
    Expires: Thu, 13 Feb 2003 21:59:22 GMT\r\n
    Transport:
    RTP/AVP;unicast;client_port=6972-6973;mode=record;source=127.0.0.1;
    server_port=6978-6979\r\n
    \r\n

客户端发送给服务器端：

RECORD rtsp://127.0.0.1/mystream.sdp RTSP/1.0\r\n
    CSeq: 5\r\n
    Session: 1549167172936112945\r\n
    User-Agent: QTS (qtver=6.1;cpu=PPC;os=Mac 10.2.3)\r\n
    \r\n

服务器端发送给客户端：

RTSP/1.0 200 OK\r\n
    Server: QTSS/4.1.3.x (Build/425; Platform/MacOSX; Release/Development;)\r\n
    Cseq: 5\r\n
    Session: 1549167172936112945\r\n
    RTP-Info: url=trackid=1,url=trackid=2\r\n
    \r\n

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