视频监控安防平台-GB28181_2016版本-INVITE请求视频(UDP、TCP active、 TCP passive)

本文详细解析了GB28181标准中关于视频请求的过程,特别是2016版本中新加入的支持TCP主动和被动模式的特性。通过具体的抓包信息示例,展示了UDP、TCP主动及TCP被动模式下视频请求的具体实现。

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                   视频监控安防平台-GB28181_2016版本-INVITE请求视频(UDP、TCP active、 TCP passive)

在GB28181里面,视频请求是最重要的环节,GB28181 2016版本最主要的新增内容 估计就是请求视频的时候支持tcp active和tcp passive, 其实早在GB28181 2014版本的时候都已经定义了tcp传输码流,tcp最大的好处就是对下载的时候能保证不丢包,下面简要说一下INVITE请求视频的流程:



下面简要粘贴一下抓包信息:

udp:

INVITE sip:64000000001310000001@6400000000 SIP/2.0
Call-ID: b8055bc7a97eec69318e6a38a9532cbb@0.0.0.0
CSeq: 1 INVITE
From: <sip:34020000002000000001@3402000000>;tag=35565509_53173353_01b54c44-9ff9-49bf-b63a-58e0c1064b22
To: <sip:64000000001310000001@6400000000>
Max-Forwards: 70
Contact: "34020000002000000001" <sip:192.168.1.81:5060>
Subject: 64000000001310000001:0-4-0,34020000002000000001:1
Content-Type: application/sdp
Route: <sip:64000000001310000001@192.168.1.93:5060;lr>
Via: SIP/2.0/UDP 192.168.1.81:5060;branch=z9hG4bK01b54c44-9ff9-49bf-b63a-58e0c1064b22_53173353_34843235799148
Content-Length: 221

v=0
o=34020000002020000001 0 0 IN IP4 192.168.1.81
s=Play
c=IN IP4 192.168.1.81
t=0 0
m=video 6000 RTP/AVP 96 98 97
a=recvonly
a=rtpmap:96 PS/90000
a=rtpmap:97 MPEG4/90000
a=rtpmap:98 H264/90000
f=v/2/4///a///
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.81:5060;branch=z9hG4bK01b54c44-9ff9-49bf-b63a-58e0c1064b22_53173353_34843235799148
From: <sip:34020000002000000001@3402000000>;tag=35565509_53173353_01b54c44-9ff9-49bf-b63a-58e0c1064b22
To: <sip:64000000001310000001@6400000000>
Call-ID: b8055bc7a97eec69318e6a38a9532cbb@0.0.0.0
CSeq: 1 INVITE
Content-Length: 0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.81:5060;branch=z9hG4bK01b54c44-9ff9-49bf-b63a-58e0c1064b22_53173353_34843235799148
Record-Route: <sip:64000000002000000001@192.168.1.93:5060;lr>
From: <sip:34020000002000000001@3402000000>;tag=35565509_53173353_01b54c44-9ff9-49bf-b63a-58e0c1064b22
To: <sip:64000000001310000001@6400000000>;tag=j3cF7SuJ
Call-ID: b8055bc7a97eec69318e6a38a9532cbb@0.0.0.0
CSeq: 1 INVITE
Contact: <sip:64000000001310000001@192.168.1.93:5060>
Content-Type: application/sdp
Content-Length:   220

v=0
o=64000000001310000001 0 0 IN IP4 192.168.1.93
s=Play
c=IN IP4 192.168.1.93
t=0 0
m=video 20120 RTP/AVP 96 98 97
a=sendonly
a=rtpmap:96 PS/90000
a=rtpmap:98 H264/90000
a=rtpmap:97 MPEG4/90000
y=0000000003
ACK sip:64000000001310000001@192.168.1.93:5060 SIP/2.0
Call-ID: b8055bc7a97eec69318e6a38a9532cbb@0.0.0.0
CSeq: 1 ACK
From: <sip:34020000002000000001@3402000000>;tag=35565509_53173353_01b54c44-9ff9-49bf-b63a-58e0c1064b22
To: <sip:64000000001310000001@6400000000>;tag=j3cF7SuJ
Max-Forwards: 70
Route: <sip:64000000002000000001@192.168.1.93:5060;lr>
Via: SIP/2.0/UDP 192.168.1.81:5060;branch=z9hG4bK01b54c44-9ff9-49bf-b63a-58e0c1064b22_53173353_34843344467988
Content-Length: 0
tcp active:

INVITE sip:34020000001310000001@3402000000 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.93:5060;rport;branch=z9hG4bK-3d09000-2b0348fd-yeqPDaq1
From: <sip:64000000002000000001@192.168.1.93:5060>;tag=98EB157C7A7D4152B78D2B9E097AF8C9
To: <sip:34020000001310000001@3402000000>
Call-ID: 98EB157C7A7D4152B78D2B9E097AF8C9
CSeq: 12 INVITE
Contact: <sip:64000000002000000001@192.168.1.93:5060>
Content-Type: application/sdp
Max-Forwards: 70
Subject: 34020000001310000001:1,64000000002000000001:1
Content-Length:   258

v=0
o=64000000002000000001 0 0 IN IP4 192.168.1.93
s=Play
c=IN IP4 192.168.1.93
t=0 0
m=video 20108 TCP/RTP/AVP 96 98 97
a=recvonly
a=rtpmap:96 PS/90000
a=rtpmap:98 H264/90000
a=rtpmap:97 MPEG4/90000
a=setup:active
a=connection:new
y=0000000002
SIP/2.0 200 OK
To: <sip:34020000001310000001@3402000000>;tag=70848741_53173353_6a72b837-2678-46e9-9320-8db5a86f208c
Via: SIP/2.0/UDP 192.168.1.93:5060;rport=5060;branch=z9hG4bK-3d09000-2b0348fd-yeqPDaq1;received=192.168.1.93
CSeq: 12 INVITE
Call-ID: 98EB157C7A7D4152B78D2B9E097AF8C9
From: <sip:64000000002000000001@192.168.1.93:5060>;tag=98EB157C7A7D4152B78D2B9E097AF8C9
Contact: <sip:192.168.1.81:5060>
Content-Type: application/sdp
Content-Length: 245

v=0
o=64010000002020000001 0 0 IN IP4 192.168.1.81
s=Play
c=IN IP4 192.168.1.81
t=0 0
m=video 5000 TCP/RTP/AVP 96 97 98
a=sendonly
a=rtpmap:96 PS/90000
a=rtpmap:97 MPEG4/90000
a=rtpmap:98 H264/90000
a=setup:passive
a=connection:new
y=0200000025
ACK sip:34020000001310000001@3402000000 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.93:5060;rport=5060;branch=z9hG4bK-3d09000-2b0348fd-yeqPDaq1;received=192.168.1.93
From: <sip:64000000002000000001@192.168.1.93:5060>;tag=98EB157C7A7D4152B78D2B9E097AF8C9
To: <sip:34020000001310000001@3402000000>;tag=70848741_53173353_6a72b837-2678-46e9-9320-8db5a86f208c
Call-ID: 98EB157C7A7D4152B78D2B9E097AF8C9
CSeq: 12 ACK
Max-Forwards: 70
Content-Length: 0
tcp passive:

INVITE sip:34020000001310000001@3402000000 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.93:5060;rport;branch=z9hG4bK-3d09000-16938bd4-JmZPS4tF
From: <sip:64000000002000000001@192.168.1.93:5060>;tag=DAD260A2BECC485BAFDDA3736EC724D9
To: <sip:34020000001310000001@3402000000>
Call-ID: DAD260A2BECC485BAFDDA3736EC724D9
CSeq: 190 INVITE
Contact: <sip:64000000002000000001@192.168.1.93:5060>
Content-Type: application/sdp
Max-Forwards: 70
Subject: 34020000001310000001:1,64000000002000000001:1
Content-Length:   326

v=0
o=64000000002000000001 0 0 IN IP4 192.168.1.93
s=Download
u=34020000001310000001:3
c=IN IP4 192.168.1.93
t=1495173756 1495174056
m=video 20372 TCP/RTP/AVP 96 98 97
a=recvonly
a=rtpmap:96 PS/90000
a=rtpmap:98 H264/90000
a=rtpmap:97 MPEG4/90000
a=setup:passive
a=connection:new
a=downloadspeed:8
y=1000000025
SIP/2.0 200 OK
To: <sip:34020000001310000001@3402000000>;tag=01493985_53173353_fb041e78-db58-4fec-9660-625f28bd5e9a
Via: SIP/2.0/UDP 192.168.1.93:5060;rport=5060;branch=z9hG4bK-3d09000-16938bd4-JmZPS4tF;received=192.168.1.93
CSeq: 190 INVITE
Call-ID: DAD260A2BECC485BAFDDA3736EC724D9
From: <sip:64000000002000000001@192.168.1.93:5060>;tag=DAD260A2BECC485BAFDDA3736EC724D9
Contact: <sip:192.168.1.81:5060>
Content-Type: application/sdp
Content-Length: 268

v=0
o=64010000002020000001 0 0 IN IP4 192.168.1.81
s=Download
c=IN IP4 192.168.1.81
t=0 0
m=video 5000 TCP/RTP/AVP 96 97 98
a=sendonly
a=rtpmap:96 PS/90000
a=rtpmap:97 MPEG4/90000
a=rtpmap:98 H264/90000
a=setup:active
a=connection:new
a=filesize:59770877
y=1200000016
ACK sip:34020000001310000001@3402000000 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.93:5060;rport=5060;branch=z9hG4bK-3d09000-16938bd4-JmZPS4tF;received=192.168.1.93
From: <sip:64000000002000000001@192.168.1.93:5060>;tag=DAD260A2BECC485BAFDDA3736EC724D9
To: <sip:34020000001310000001@3402000000>;tag=01493985_53173353_fb041e78-db58-4fec-9660-625f28bd5e9a
Call-ID: DAD260A2BECC485BAFDDA3736EC724D9
CSeq: 190 ACK
Max-Forwards: 70
Content-Length: 0


流媒体这块就需要自己做处理了, 一般检测的时候您需要等待几秒钟,检测软件SPVMN不是那么快速,还有就是tcp active的时候 spvmn的端口不是协议中的端口,所以您不需要针对tcp端口进行筛选。

  1、支持国标GB28181平台、国标GB28181 IPC和国标GB28181 NVR设备同时接入 (支持GB28181-2011版本GB28181-2016版本)     2、支持国标GB28181设备注册和注销,对所有设备进行管理,获取资源 对资源列表进行管理     3、支持国标GB28181的目录订阅,对接收的订阅通知进行处理     4、支持国标GB28181实时视频请求(支持UDPTCP主动(tcpactive)、TCP被动(tcppassive))     5、支持国标GB28181 PTZ控制     6、支持国标GB28181 录像查询     7、支持国标GB28181 历史视频点播 (支持UDPTCP主动(tcpactive)、TCP被动(tcppassive))     8、支持国标GB28181 历史视频下载 (支持UDPTCP主动(tcpactive)、TCP被动(tcppassive))     9、支持对接收的国标实时视频码流和历史视频码流进行管理     10、支持将国标的PS码流转换成ES码流     11、支持丢包打印和断流打印     13、支持RTSP服务和RTSP会话管理     14、支持RTSP客户端 UDP传输和TCP传输     15、支持国标GB28181设备5000路左右的接入管理,支持国标请求视频在100路左右     16、支持国标28181设备和通道写入mysql数据库      17、支持设备的云台PTZ控制,控制类型:上"up",下"down",左"left",右"right",左上"leftup",左下"leftdown",右上"rightup",右下"rightdown",镜头近"zoomin",镜头远"zoomout", 焦距远"focusfar",焦距近"focusnear", 设置预置位"setpos",调预置位"callpos"     18、支持历史视频的查询和历史视频的点播控制     19、支持对国标设备的控制,"record":录像开启和停止-通道id "guard":布放和撤防-报警通道id "reboot":设备重启-设备id "keyfame":强制关键帧-通道id     20、支持对实时视频的图片截图,通过http直接访问图片    21、支持rtmp和hls会话一直保留    22、支持报警消息(设备上线、下线和设备端报警)通过httpclient方式主动通知    23、支持公网和局域网同时存在    24、支持httpserver,接口支持http+json    25、支持设备上线、下线和设备报警通过httpclient通知到指定的httpserver   26、支持http+json设置平台信息  27、支持http+json获取资源组、资源等信息  29、支持国标28181级联上级
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