【视频开发】ONVIF客户端搜索设备获取rtsp地址开发笔记(精华篇)
转载地址:http://blog.csdn.net/gubenpeiyuan/article/details/25618177
概要:
前言及鸣谢:
感谢guog先生,快活林高先生,onvif全国交流群的的酷夏先生在开发过程中给予的巨大支持,没有你们的帮助开发过程将异常艰难啊。谢谢了!
ONVIF介绍:
搜索:Probe: 发现网络摄像头,获取webserver地址
http://192.168.15.240/onvif/device_service
能力获取:GetCapabilities:获取设备能力文件,从中识别出媒体信息地址URI: http://192.168.15.240/onvif/Media
媒体信息获取:GetProfiles: 获取媒体信息文件,识别主通道、子通道的视频编码分辨率
RTSP地址获取:GetStreamUri:获取指定通道的流媒体地址 rtsp://192.168.15.240:554/Streaming/Channels/2?transportmode=unicast
Gsoap及开发框架生成:
命令:
- wsdl2h -o onvif.h -c -s -t ./typemap.dat devicemgmt.wsdl media.wsdl event.wsdl display.wsdl deviceio.wsdl imaging.wsdl ptz.wsdl receiver.wsdl recording.wsdl search.wsdl remotediscovery.wsdl replay.wsdl analytics.wsdl analyticsdevice.wsdl actionengine.wsdl accesscontrol.wsdl doorcontrol.wsdl
离线文件在:
http://download.csdn.net/detail/u011597695/5875143- wsdl2h -o onvif.h -c -s -t ./typemap.dat http://www.onvif.org/onvif/ver10/device/wsdl/devicemgmt.wsdl http://www.onvif.org/onvif/ver10/media/wsdl/media.wsdl http://www.onvif.org/onvif/ver10/event/wsdl/event.wsdl http://www.onvif.org/onvif/ver10/display.wsdl http://www.onvif.org/onvif/ver10/deviceio.wsdl http://www.onvif.org/onvif/ver20/imaging/wsdl/imaging.wsdl http://www.onvif.org/onvif/ver20/ptz/wsdl/ptz.wsdl http://www.onvif.org/onvif/ver10/receiver.wsdl http://www.onvif.org/onvif/ver10/recording.wsdl http://www.onvif.org/onvif/ver10/search.wsdl http://www.onvif.org/onvif/ver10/network/wsdl/remotediscovery.wsdl http://www.onvif.org/onvif/ver10/replay.wsdl http://www.onvif.org/onvif/ver20/analytics/wsdl/analytics.wsdl http://www.onvif.org/onvif/ver10/analyticsdevice.wsdl http://www.onvif.org/ver10/actionengine.wsdl http://www.onvif.org/ver10/pacs/accesscontrol.wsdl http://www.onvif.org/ver10/pacs/doorcontrol.wsdl
(记得拷贝gsoap的typemap文件至生成目录下,wsdl2h命令需要这个。)
- wsdl2h -o onvif.h -c -s -t ./typemap.dat devicemgmt.wsdl media.wsdl event.wsdl display.wsdl deviceio.wsdl imaging.wsdl ptz.wsdl receiver.wsdl recording.wsdl search.wsdl remotediscovery.wsdl replay.wsdl analytics.wsdl analyticsdevice.wsdl actionengine.wsdl accesscontrol.wsdl doorcontrol.wsdl
现在可以开始生成了:如下:
如果直接生成对应C的库文件会发生重复定义错误,可以修改该文件。
wsa5.h(288): **ERROR**: remote method name clash: struct/class 'SOAP_ENV__Fault' already declared at line 274
打开文件gsoap_2.8.16/gsoap-2.8/gsoap/import/ wsa5.h
将277行int SOAP_ENV__Fault修改为int SOAP_ENV__Fault_alex
笔者没有使用这种方法,是将这个结构体直接注释的方式,最后的结果是,都可以使用。
同时上一步生成的onvif.h文件中没有打开wsse.h, 导致最后生成代码中SOAP_ENV__Header 结构体中缺少定义 wsse__Security数据段,无法进行鉴权命令。
即:添加对openssl的支持,在上一步生成的onvif.h中添加(可选)
- #import "wsse.h"
随后使用命令生成:
- soapcpp2 -c onvif.h -x -I/root/Tools/Gsoap/gsoap-2.8/gsoap/import -I/root/Tools/Gsoap/gsoap-2.8/gsoap/ -I/root/Tools/Gsoap/gsoap-2.8/gsoap/custom -I/root/Tools/Gsoap/gsoap-2.8/gsoap/extras -I/root/Tools/Gsoap/gsoap-2.8/gsoap/plugin
到此为止,基于 C 的客户端和服务器的Onvif开发框架及已经搭建完成。
设备搜索原理及编程技巧:
- struct soap* NewSoap(struct SOAP_ENV__Header *header,struct soap* soap,
- wsdd__ProbeType *req_,
- wsdd__ScopesType *sScope_)
- {
- soap = soap_new();
- if(NULL == soap )
- {
- printf("sopa new error\r\n");
- return NULL;
- }
- soap->recv_timeout = 5;
- soap_set_namespaces(soap, namespaces);
- soap_default_SOAP_ENV__Header(soap, header);
- uuid_t uuid;
- char guid_string[100];
- uuid_generate(uuid);
- uuid_unparse(uuid, guid_string);
- header->wsa__MessageID = guid_string;
- header->wsa__To = "urn:schemas-xmlsoap-org:ws:2005:04:discovery";
- header->wsa__Action = "http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe";
- soap->header = header;
- soap_default_wsdd__ScopesType(soap, sScope_);
- sScope_->__item = "";
- soap_default_wsdd__ProbeType(soap, req_);
- req_->Scopes = sScope_;
- req_->Types = ""; //"dn:NetworkVideoTransmitter";
- return soap ;
- }
- int i = 0;
- result = soap_send___wsdd__Probe(soap, MULTICAST_ADDRESS, NULL, &req);
- while(result == SOAP_OK)
- {
- result = soap_recv___wsdd__ProbeMatches(soap, &resp);
- if(result == SOAP_OK)
- {
- if(soap->error)
- {
- printf("soap error 1: %d, %s, %s\n", soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
- result = soap->error;
- }
- else
- {
- printf("Onvif Device detected *********************************************\r\n");
- for(i = 0; i < resp.wsdd__ProbeMatches->__sizeProbeMatch; i++)
- {
- printf("__sizeProbeMatch : %d\r\n", resp.wsdd__ProbeMatches->__sizeProbeMatch);
- printf("wsa__EndpointReference : %p\r\n", resp.wsdd__ProbeMatches->ProbeMatch->wsa__EndpointReference);
- printf("Target EP Address : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->wsa__EndpointReference.Address);
- printf("Target Type : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->Types);
- printf("Target Service Address : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->XAddrs);
- printf("Target Metadata Version : %d\r\n", resp.wsdd__ProbeMatches->ProbeMatch->MetadataVersion);
- if(resp.wsdd__ProbeMatches->ProbeMatch->Scopes)
- {
- printf("Target Scopes Address : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->Scopes->__item);
- }
- }
- break;
- }
- }
- else if (soap->error)
- {
- printf("[%d] soap error 2: %d, %s, %s\n", __LINE__, soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
- result = soap->error;
- }
- }
设备鉴权:
- soap_wsse_add_UsernameTokenDigest(soap,"user", ONVIF_USER, ONVIF_PASSWORD);
原理也很容易明白其实,就是讲http的soap消息加入对应header中xml的元素而已,然后敏感消息digest MD5加密编码。
获取能力:
- void UserGetCapabilities(struct soap *soap ,struct __wsdd__ProbeMatches *resp,
- struct _tds__GetCapabilities *capa_req,struct _tds__GetCapabilitiesResponse *capa_resp)
- {
- capa_req->Category = (enum tt__CapabilityCategory *)soap_malloc(soap, sizeof(int));
- capa_req->__sizeCategory = 1;
- *(capa_req->Category) = (enum tt__CapabilityCategory)(tt__CapabilityCategory__Media);
- capa_resp->Capabilities = (struct tt__Capabilities*)soap_malloc(soap,sizeof(struct tt__Capabilities)) ;
- soap_wsse_add_UsernameTokenDigest(soap,"user", ONVIF_USER, ONVIF_PASSWORD);
- printf("\n--------------------Now Gettting Capabilities NOW --------------------\n\n");
- int result = soap_call___tds__GetCapabilities(soap, resp->wsdd__ProbeMatches->ProbeMatch->XAddrs, NULL, capa_req, capa_resp);
- if (soap->error)
- {
- printf("[%s][%d]--->>> soap error: %d, %s, %s\n", __func__, __LINE__, soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
- int retval = soap->error;
- exit(-1) ;
- }
- else
- {
- printf(" \n--------------------GetCapabilities OK! result=%d--------------\n \n",result);
- if(capa_resp->Capabilities==NULL)
- {
- printf(" GetCapabilities failed! result=%d \n",result);
- }
- else
- {
- printf(" Media->XAddr=%s \n", capa_resp->Capabilities->Media->XAddr);
- }
- }
- }
获取媒体信息Profile:
- void UserGetProfiles(struct soap *soap,struct _trt__GetProfiles *trt__GetProfiles,
- struct _trt__GetProfilesResponse *trt__GetProfilesResponse ,struct _tds__GetCapabilitiesResponse *capa_resp)
- {
- int result=0 ;
- printf("\n-------------------Getting Onvif Devices Profiles--------------\n\n");
- soap_wsse_add_UsernameTokenDigest(soap,"user", ONVIF_USER, ONVIF_PASSWORD);
- result = soap_call___trt__GetProfiles(soap, capa_resp->Capabilities->Media->XAddr, NULL, trt__GetProfiles, trt__GetProfilesResponse);
- if (result==-1)
- //NOTE: it may be regular if result isn't SOAP_OK.Because some attributes aren't supported by server.
- //any question email leoluopy@gmail.com
- {
- printf("soap error: %d, %s, %s\n", soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
- result = soap->error;
- exit(-1);
- }
- else{
- printf("\n-------------------Profiles Get OK--------------\n\n");
- if(trt__GetProfilesResponse->Profiles!=NULL)
- {
- if(trt__GetProfilesResponse->Profiles->Name!=NULL){
- printf("Profiles Name:%s \n",trt__GetProfilesResponse->Profiles->Name);
- }
- if(trt__GetProfilesResponse->Profiles->token!=NULL){
- printf("Profiles Taken:%s\n",trt__GetProfilesResponse->Profiles->token);
- }
- }
- else{
- printf("Profiles Get inner Error\n");
- }
- }
- printf("Profiles Get Procedure over\n");
- }
获取RTSP的URI:
- void UserGetUri(struct soap *soap,struct _trt__GetStreamUri *trt__GetStreamUri,struct _trt__GetStreamUriResponse *trt__GetStreamUriResponse,
- struct _trt__GetProfilesResponse *trt__GetProfilesResponse,struct _tds__GetCapabilitiesResponse *capa_resp)
- {
- int result=0 ;
- trt__GetStreamUri->StreamSetup = (struct tt__StreamSetup*)soap_malloc(soap,sizeof(struct tt__StreamSetup));//初始化,分配空间
- trt__GetStreamUri->StreamSetup->Stream = 0;//stream type
- trt__GetStreamUri->StreamSetup->Transport = (struct tt__Transport *)soap_malloc(soap, sizeof(struct tt__Transport));//初始化,分配空间
- trt__GetStreamUri->StreamSetup->Transport->Protocol = 0;
- trt__GetStreamUri->StreamSetup->Transport->Tunnel = 0;
- trt__GetStreamUri->StreamSetup->__size = 1;
- trt__GetStreamUri->StreamSetup->__any = NULL;
- trt__GetStreamUri->StreamSetup->__anyAttribute =NULL;
- trt__GetStreamUri->ProfileToken = trt__GetProfilesResponse->Profiles->token ;
- printf("\n\n---------------Getting Uri----------------\n\n");
- soap_wsse_add_UsernameTokenDigest(soap,"user", ONVIF_USER, ONVIF_PASSWORD);
- soap_call___trt__GetStreamUri(soap, capa_resp->Capabilities->Media->XAddr, NULL, trt__GetStreamUri, trt__GetStreamUriResponse);
- if (soap->error) {
- printf("soap error: %d, %s, %s\n", soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
- result = soap->error;
- }
- else{
- printf("!!!!NOTE: RTSP Addr Get Done is :%s \n",trt__GetStreamUriResponse->MediaUri->Uri);
- }
- }
开发注意事项:(必读)
soap通信的命名空间如果错误则不能检索到设备:编译好的wsdd.nsmap文件需要修改命名空间,如下:
如果要正常开发,被检索到,或者发现其他设备需要nsmap修改如下:1.1换1.2
- 以下命名空间表示SOAP1.1版本:
- {"SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/", "http://www.w3.org/*/soap-envelope", NULL},
- {"SOAP-ENC", "http://schemas.xmlsoap.org/soap/encoding/", "http://www.w3.org/*/soap-encoding", NULL}, //1.1
- 以下命名空间表示SOAP1.2版本:
- {"SOAP-ENV", "http://www.w3.org/2003/05/soap-envelope", "http://schemas.xmlsoap.org/soap/envelope/", NULL},
- {"SOAP-ENC", "http://www.w3.org/2003/05/soap-encoding", "http://schemas.xmlsoap.org/soap/encoding/", NULL}, //1.2
另外存在的客户端搜索不到设备情况:
1.是否有vpn,存在的话,本机IP会产生变化导致不能搜到?抓包可以看到,3702端口包的数据源地址改变。
2.uuid是否已经赋值。
3.有时,windows宿主机装有虚拟机,也可能造成onvif客户端的ip获取错误。故搜索不到。
这些问题,在交换机或者路由支持本地局域网跨网段数据UDP交互时,均不会产生。
调试技巧:
fsend/ frecv 打印出发送和接收到的报文。使用xml编辑器分析。当然也可以直接用浏览器看。
1、打开onvif调试开关,以便让onvif打印一些可用的调试信息。
在Makefile中添加调试宏定义如: CC = gcc -DDEBUG
2、打开调试宏后,默认在程序运行的目录产生三个文件:
RECV.log
SENT.log
TEST.log
RECV.log是onvif接收到的SOAP数据,没接收一条,都会在RECV.log中记录
SENT.log是onvif发送出去的SOAP数据,没发送一套,也会在SENT.log中生成记录
最后是TEST.log,如果说RECV和SENT可以用wireshark工具抓包代替,那么TEST.log是谁也替代不了的,TEST.log记录了onvif的实时的工作状态。
尤其当出现segmentation fault错误,TEST.log就成了唯一一个能够定位到具体内存出错的地方了。
SOAP_TYPE返回soap->error=4的错误说明
关于数据正确(抓包可收到数据),但soap返回错误,为4 及 SOAP_TYPE 的问题:
GetCapabilities的过程错误时。
多次调试后得出结论,是tt__CapabilityCategory 的设置问题,有的设备不具备全部功能,而请求全部或请求没有的功能就可能造成这种问题,推荐写5(tt__CapabilityCategory__Media) 这是大多数设置有的能力,而且最常用。
GetProfile时错误:
其实数据在抓包过程中也能完全抓到,多次调试后,发现结构体需要的Name以及token关键字被赋值。其他的没有,说明本点返回与服务器的支持性有很大关系。及,开发过程中需要对应自己的需求,根据实际的需要和返回错误,读取返回结构体数据。
资源:
ONVIFDEVICEMANAGER下载地址:
http://pan.baidu.com/share/link?shareid=1967805400&uk=70662920&fid=3981296515
ONVIFTESTTOOL下载地址:
http://www.cr173.com/soft/66448.html
官网开发者向导资料下载地址:
http://www.onvif.org/Resources/WhitePapers.aspx
参考文章:
http://blog.csdn.net/ghostyu/article/details/8162280
http://blog.csdn.net/max_min_go/article/details/17964643
linux设备上的Onvif 实现10:获取支持通道的RTSP地址
http://gaohtao.blog.163.com/blog/static/58241823201381113214599/
http://blog.csdn.net/max_min_go/article/details/17617057
ONVIF协议开发资源
http://www.csdn.net/tag/onvif%252520%2525E5%25258D%25258F%2525E8%2525AE%2525AE
http://blog.csdn.net/love_xjhu/article/details/11821037
http://blog.csdn.net/u012084827/article/details/19031969
http://blog.csdn.net/love_xjhu/article/details/9772361
http://blog.csdn.net/zsl461975543/article/details/8971143
代码框架生成之Onvif开发
http://www.yc-edu.org/C__peixun/6655.html
linux设备上的Onvif
实现4:成功编译gsoap 2.8.15
http://blog.csdn.net/u012084827/article/details/12202133
onvif规范的实现:onvif开发常用调试方法
和常见的segmentation fault错误
http://blog.csdn.net/ghostyu/article/details/8432760
linux设备上的Onvif
实现6:获取摄像头的流媒体地址完整流程
http://blog.csdn.net/u012084827/article/details/12201997
SOAP 错误代码表