RTP/RTCP/RTSP協(xié)議分析

一．RTSP協(xié)議分析

1.1RTSP包分析

客戶端請(qǐng)求 協(xié)商兩個(gè)端口56400和56401，其中56400用于RTP，56401用于RTCP；

服務(wù)端響應(yīng)協(xié)商，服務(wù)端用6970和6971兩個(gè)端口，6970用于RTP，6971用于RTCP；

請(qǐng)求播放

響應(yīng)請(qǐng)求播放，接下來(lái)就在協(xié)商的端口上發(fā)送RTP包了。

1.2數(shù)據(jù)包的另一種表述方式

OPTIONS rtsp://192.168.2.115/slamtv10.264 RTSP/1.0

CSeq: 2

User-Agent: LibVLC/2.2.4(LIVE555 Streaming Media v2016.02.22)

RTSP/1.0 200 OK

CSeq: 2

Date: Fri, Mar 17 2017 07:03:59 GMT

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

DESCRIBE rtsp://192.168.2.115/slamtv10.264 RTSP/1.0

CSeq: 3

User-Agent: LibVLC/2.2.4(LIVE555 Streaming Media v2016.02.22)

Accept: application/sdp

RTSP/1.0 200 OK

CSeq: 3

Date: Fri, Mar 17 2017 07:04:00 GMT

Content-Base: rtsp://192.168.2.115/slamtv10.264/

Content-Type: application/sdp

Content-Length: 525

v=0

o=- 1489734239908613 1 INIP4 192.168.2.115

s=H.264 Video, streamed by the LIVE555 Media Server

i=slamtv10.264

t=0 0

a=tool:LIVE555 Streaming Media v2017.01.26

a=type:broadcast

a=control:*

a=range:npt=0-

a=x-qt-text-nam:H.264 Video, streamed by the LIVE555 MediaServer

a=x-qt-text-inf:slamtv10.264

m=video 0 RTP/AVP 96

c=IN IP4 0.0.0.0

b=AS:500

a=rtpmap:96 H264/90000

a=fmtp:96packetization-mode=1;profile-level-id=4D4033;sprop-parameter-sets=Z01AM5JUDAS0IAAAAwBAAAAM0eMGVA==,aO48gA==

a=control:track1

SETUP rtsp://192.168.2.115/slamtv10.264/track1 RTSP/1.0

CSeq: 4

User-Agent: LibVLC/2.2.4(LIVE555 Streaming Media v2016.02.22)

Transport: RTP/AVP;unicast;client_port=49298-49299

RTSP/1.0 200 OK

CSeq: 4

Date: Fri, Mar 17 2017 07:04:00 GMT

Transport:RTP/AVP;unicast;destination=192.168.2.107;source=192.168.2.115;client_port=49298-49299;server_port=6970-6971

Session: 1041AE6C;timeout=65

PLAY rtsp://192.168.2.115/slamtv10.264/ RTSP/1.0

CSeq: 5

User-Agent: LibVLC/2.2.4(LIVE555 Streaming Media v2016.02.22)

Session: 1041AE6C

Range: npt=0.000-

RTSP/1.0 200 OK

CSeq: 5

Date: Fri, Mar 17 2017 07:04:00 GMT

Range: npt=0.000-

Session: 1041AE6C

RTP-Info: url=rtsp://192.168.2.115/slamtv10.264/track1;seq=24913;rtptime=3524424615

GET_PARAMETER rtsp://192.168.2.115/slamtv10.264/ RTSP/1.0

CSeq: 6

User-Agent: LibVLC/2.2.4(LIVE555 Streaming Media v2016.02.22)

Session: 1041AE6C

RTSP/1.0 200 OK

CSeq: 6

Date: Fri, Mar 17 2017 07:04:00 GMT

Session: 1041AE6C

Content-Length: 10

2017.01.26TEARDOWN rtsp://192.168.2.115/slamtv10.264/ RTSP/1.0

CSeq: 7

User-Agent: LibVLC/2.2.4(LIVE555 Streaming Media v2016.02.22)

Session: 1041AE6C

RTSP/1.0 200 OK

CSeq: 7

Date: Fri, Mar 17 2017 07:04:04 GMT