ONVIF流媒體播放流程

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live55播放器：

rtsp://192.168.1.120:554/snl/live/1/3

單擊播放按鈕：

第一次：

OPTIONS rtsp://192.168.1.120:554/snl/live/1/3 RTSP/1.0

CSeq: 2 User-Agent: LibVLC/2.1.3 (LIVE555 Streaming Media v2014.01.21)

 

RTSP/1.0 200 OK

CSeq: 2

Date: Tue, Jul 22 2014 08:38:20 GMT

Public: DESCRIBE, PAUSE, PLAY, SETUP, TEARDOWN, OPTIONS, SET_PARAMETER

 

第二次：

DESCRIBE rtsp://192.168.1.120:554/snl/live/1/3 RTSP/1.0

CSeq: 3

User-Agent: LibVLC/2.1.3 (LIVE555 Streaming Media v2014.01.21)

Accept: application/sdp

 

RTSP/1.0 200 OK

CSeq: 3

User-Agent: NVT

Content-Type: application/sdp

Content-Length: 405

Content-Base: rtsp://192.168.1.120/snl/live/1/3/

v=0 o=admin 38503 38504 IN IP4 192.168.1.120

s=NVT i=From NVT c=IN IP4 192.168.1.120

t=0 0 a=range:npt=now-

a=control:rtsp://192.168.1.120/snl/live/1/3/

m=video 0 RTP/AVP 26

b=AS:0

a=rtpmap:26 JPEG/90000

a=framesize:26 1280-960

a=framerate:4.0

a=control:trackID=0

a=recvonly m=audio 0 RTP/AVP 0

a=rtpmap:0 PCMU/8000

a=fmtp:0

octet-align=1;

decode_buf=400

a=control:trackID=1 a=recvonly

 

第三次：

SETUP rtsp://192.168.1.120/snl/live/1/3/trackID=0 RTSP/1.0

CSeq: 4

User-Agent: LibVLC/2.1.3 (LIVE555 Streaming Media v2014.01.21)

Transport: RTP/AVP;unicast;client_port=57764-57765

 

RTSP/1.0 200 OK

CSeq: 4 Date: Tue, Jul 22 2014 08:38:20 GMT

User-Agent: NVT

Session: 2721006597;

timeout=60

Transport: RTP/AVP;

unicast;

client_port=57764-57765;

server_port=2078-2079;

ssrc=32974f77;

mode=play

 

第四次：

SETUP rtsp://192.168.1.120/snl/live/1/3/trackID=1 RTSP/1.0

CSeq: 5

User-Agent: LibVLC/2.1.3 (LIVE555 Streaming Media v2014.01.21)

Transport: RTP/AVP;unicast;client_port=57766-57767

Session: 2721006597

 

RTSP/1.0 200 OK

CSeq: 5 Date: Tue, Jul 22 2014 08:38:20 GMT

User-Agent: NVT

Session: 2721006597;

timeout=60 Transport:

RTP/AVP;unicast;

client_port=57766-57767;

server_port=2080-2081;ssrc=32974f77;

mode=play

 

第五次:

PLAY rtsp://192.168.1.120/snl/live/1/3/ RTSP/1.0

CSeq: 6

User-Agent: LibVLC/2.1.3 (LIVE555 Streaming Media v2014.01.21)

Session: 2721006597

Range: npt=0.000-

 

RTSP/1.0 200 OK

CSeq: 6

Date: Tue, Jul 22 2014 08:38:20 GMT

User-Agent: NVT RTP-Info:

url=rtsp://192.168.1.120/snl/live/1/3//trackID=0,url=rtsp://192.168.1.120/snl/live/1/3//trackI

D=1 Range: npt=now- Session: 2721006597

第六次:

TEARDOWN rtsp://192.168.1.120/snl/live/1/3/ RTSP/1.0

CSeq: 7

User-Agent: LibVLC/2.1.3 (LIVE555 Streaming Media v2014.01.21)

Session: 2721006597

 

RTSP/1.0 200 OK

CSeq: 7 Date: Tue, Jul 22 2014 08:41:52 GMT

User-Agent: NVT