如何接收rtp数据

[learntogether]

send length :79
OPTIONS rtsp://114.255.201.246/cctv2_256_h264.sdp?usernam RTSP/1.0
CSeq: 0

receive length :206
RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 0
Public: DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, OPTIONS, ANNOUNCE, RECORD

send length :80
DESCRIBE rtsp://114.255.201.246/cctv2_256_h264.sdp?usernam RTSP/1.0
CSeq: 1

receive length :1162
RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 1
Cache-Control: no-cache
Content-length: 756
Date: Mon, 05 Dec 2011 06:03:39 GMT
Expires: Mon, 05 Dec 2011 06:03:39 GMT
Content-Type: application/sdp
x-Accept-Retransmit: our-retransmit
x-Accept-Dynamic-Rate: 1
Content-Base: rtsp://114.255.201.246/cctv2_256_h264.sdp/

v=0
o=- 2411667325 3855649 IN IP4 172.30.0.5
s=HelixSession
c=IN IP4 0.0.0.0
t=0 0
a=control:*
m=video 0 RTP/AVP 96
b=AS:160
a=3GPP-Adaptation-Support:1
a=rtpmap:96 H264/90000
a=fmtp:96 profile-level-id=42E00B; sprop-parameter-sets=Z0LgC5ZUCg/I,aM48gA==; packetization-mode=1
a=framesize:96 320-240
a=cliprect:0,0,240,320
a=mpeg4-esid:201
a=X-initpredecbufperiod:90000
a=X-predecbufsize:20000
a=X-initpostdecbufperiod:0
a=X-decbyterate:20000
a=x-envivio-verid:00035A34
a=control:trackID=1
m=audio 0 RTP/AVP 97
b=AS:48
a=3GPP-Adaptation-Support:1
a=rtpmap:97 MP4A-LATM/32000/2
a=fmtp:97 profile-level-id=15; object=2; cpresent=0; config=420025203FC0; SBR-enabled=0
a=mpeg4-esid:101
a=x-envivio-verid:00035A34
a=control:trackID=2
send length :131
SETUP rtsp://114.255.201.246/cctv2_256_h264.sdp/trackID=1 RTSP/1.0
CSeq: 2
Transport: RTP/AVP;unicast;client_port=62400-62401

receive length :357
RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 2
Cache-Control: no-cache
Session: 5703179625585050450
Date: Mon, 05 Dec 2011 06:03:39 GMT
Expires: Mon, 05 Dec 2011 06:03:39 GMT
Transport: RTP/AVP;unicast;source=10.199.99.26;client_port=62400-62401;server_port=6970-6971

send length :99
PLAY rtsp://114.255.201.246/cctv2_256_h264.sdp/ RTSP/1.0
CSeq: 4
Session: 5703179625585050450

receive length :245
RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 4
Session: 5703179625585050450
Range: npt=now-
RTP-Info: url=rtsp://114.255.201.246/cctv2_256_h264.sdp/trackID=1


这是我对一个rtsp服务器的通信过程，请问接下来怎么接收rtp数据呢。我试了好多种方法，首先用TCP监听62400-62401端口，接收不到数据，用UDP监听也接收不到。连接服务器给的端口也连接不成功。

[qq120848369]

和http协议长得真像...

[zoulie]

rtsp连接已经建立成功了
媒体流的地址是10.199.99.26，UDP传输
62400是rtp端口,62401是RTCP端口

[learntogether]

解决了 原因是rtp数据被防火墙屏蔽了
这样做就可以了

OPTIONS rtsp://114.255.201.246/cctv5_256_h264.sdp?usernam RTSP/1.0
CSeq: 1

RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 1
Public: DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, OPTIONS, ANNOUNCE, RECORD

DESCRIBE rtsp://114.255.201.246/cctv5_256_h264.sdp?usernam RTSP/1.0
CSeq: 2

RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 2
Cache-Control: no-cache
Content-length: 755
Date: Mon, 12 Dec 2011 09:46:21 GMT
Expires: Mon, 12 Dec 2011 09:46:21 GMT
Content-Type: application/sdp
x-Accept-Retransmit: our-retransmit
x-Accept-Dynamic-Rate: 1
Content-Base: rtsp://114.255.201.246/cctv5_256_h264.sdp/

v=0
o=- 291513024 3699575 IN IP4 172.30.0.7
s=HelixSession
c=IN IP4 0.0.0.0
t=0 0
a=control:*
m=video 0 RTP/AVP 96
b=AS:160
a=3GPP-Adaptation-Support:1
a=rtpmap:96 H264/90000
a=fmtp:96 profile-level-id=42E00B; sprop-parameter-sets=Z0LgC5ZUCg/I,aM48gA==; packetization-mode=1
a=framesize:96 320-240
a=cliprect:0,0,240,320
a=mpeg4-esid:201
a=X-initpredecbufperiod:90000
a=X-predecbufsize:20000
a=X-initpostdecbufperiod:0
a=X-decbyterate:20000
a=x-envivio-verid:00035A34
a=control:trackID=1
m=audio 0 RTP/AVP 97
b=AS:48
a=3GPP-Adaptation-Support:1
a=rtpmap:97 MP4A-LATM/32000/2
a=fmtp:97 profile-level-id=15; object=2; cpresent=0; config=420025203FC0; SBR-enabled=0
a=mpeg4-esid:101
a=x-envivio-verid:00035A34
a=control:trackID=2
SETUP rtsp://114.255.201.246/cctv5_256_h264.sdp/trackID=1 RTSP/1.0
CSeq: 3
Transport: RTP/AVP/TCP;interleaved=0-1

RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 3
Cache-Control: no-cache
Session: 1053048633071767785
Date: Mon, 12 Dec 2011 09:46:21 GMT
Expires: Mon, 12 Dec 2011 09:46:21 GMT
Transport: RTP/AVP/TCP;interleaved=0-1

PLAY rtsp://114.255.201.246/cctv5_256_h264.sdp/ RTSP/1.0
CSeq: 4
Session: 1053048633071767785

RTSP/1.0 200 OK
Server: DSS/6.0.3 (Build/526.3; Platform/Linux; Release/Darwin Streaming Server; State/Development; )
Cseq: 4
Session: 1053048633071767785
Range: npt=now-
RTP-Info: url=rtsp://114.255.201.246/cctv5_256_h264.sdp/trackID=1


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