Onvif备忘录(2)----客户端端设备发现

续上篇，框架代码生成之后，就可以进行基于Onvif的开发了，先实现一个简单的设备发现的例子。 VisualStudio中新建一个空白工程，将上篇中生成的框架代码添加进来，但soapServer.c文件中定义了许多要实现的函数，直接添加编译会报一大堆错误，且本例中只需要用到Client的功能，so 。。。 删掉soapServer.c, 留下soapClient.c即可。

工程结构如下：

         

main.c代码如下：   

#include "wsdd.h"
#include <stdio.h>

static struct soap* ONVIF_Initsoap(struct SOAP_ENV__Header *header, const char *was_To, const char *was_Action, int timeout)
{
    struct soap *soap = NULL;
    unsigned char macaddr[6];
    char _HwId[1024];
    unsigned int Flagrand;
    soap = soap_new();
    if(soap == NULL)
    {
        printf("[%d]soap = NULL\n", __LINE__);
        return NULL;
    }

    soap_set_namespaces( soap, namespaces);

    if (timeout > 0)
    {
        soap->recv_timeout = timeout;
        soap->send_timeout = timeout;
        soap->connect_timeout = timeout;
    }
    else
    {
        //Maximum wait time: 20S
        soap->recv_timeout    = 20;
        soap->send_timeout    = 20;
        soap->connect_timeout = 20;
    }
    soap_default_SOAP_ENV__Header(soap, header);

    // Create SessionID randomly
    srand((int)time(0));
    Flagrand = rand()%9000 + 8888;
    macaddr[0] = 0x1; macaddr[1] = 0x2; macaddr[2] = 0x3; macaddr[3] = 0x4; macaddr[4] = 0x5; macaddr[5] = 0x6;
    sprintf(_HwId,"urn:uuid:%ud68a-1dd2-11b2-a105-%02X%02X%02X%02X%02X%02X",
            Flagrand, macaddr[0], macaddr[1], macaddr[2], macaddr[3], macaddr[4], macaddr[5]);
    header->wsa__MessageID =(char *)malloc( 100);
    memset(header->wsa__MessageID, 0, 100);
    strncpy(header->wsa__MessageID, _HwId, strlen(_HwId));

    if (was_Action != NULL)
    {
        header->wsa__Action =(char *)malloc(1024);
        memset(header->wsa__Action, '\0', 1024);
        strncpy(header->wsa__Action, was_Action, 1024);//"http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe";
    }
    if (was_To != NULL)
    {
        header->wsa__To =(char *)malloc(1024);
        memset(header->wsa__To, '\0', 1024);
        strncpy(header->wsa__To,  was_To, 1024);//"urn:schemas-xmlsoap-org:ws:2005:04:discovery";
    }
    soap->header = header;
    return soap;
}

int ONVIF_ClientDiscovery( )
{
    int FoundDevNo = 0;
    int retval = SOAP_OK;
    wsdd__ProbeType req;
    struct __wsdd__ProbeMatches resp;
    wsdd__ScopesType sScope;
    struct SOAP_ENV__Header header;
    struct soap* soap;


    const char *was_To = "urn:schemas-xmlsoap-org:ws:2005:04:discovery";
    const char *was_Action = "http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe";
    //IP Adress and PortNo, broadCast
    const char *soap_endpoint = "soap.udp://239.255.255.250:3702/";

    //Create new soap object with info
    soap = ONVIF_Initsoap(&header, was_To, was_Action, 10);

    soap_default_SOAP_ENV__Header(soap, &header);
    soap->header = &header;

    soap_default_wsdd__ScopesType(soap, &sScope);
    sScope.__item = "";
    soap_default_wsdd__ProbeType(soap, &req);
    req.Scopes = &sScope;
    req.Types = ""; //"dn:NetworkVideoTransmitter";

    //sent the message broadcast and wait
    retval = soap_send___wsdd__Probe(soap, soap_endpoint, NULL, &req);
    while (retval == SOAP_OK)
    {
        retval = soap_recv___wsdd__ProbeMatches(soap, &resp);
        if (retval == SOAP_OK)
        {
            if (soap->error)
            {
                printf("[%d]: recv soap error :%d, %s, %s\n", __LINE__, soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
                retval = soap->error;
            }
            else //we find a device
            {
                FoundDevNo ++;
                if (resp.wsdd__ProbeMatches->ProbeMatch != NULL && resp.wsdd__ProbeMatches->ProbeMatch->XAddrs != NULL)
                {
                    printf("****** No %d Devices Information ******\n", FoundDevNo );
                    printf("Device Service Address  : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->XAddrs);
                    printf("Device EP Address       : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->wsa__EndpointReference.Address);
                    printf("Device Type             : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->Types);
                    printf("Device Metadata Version : %d\r\n", resp.wsdd__ProbeMatches->ProbeMatch->MetadataVersion);
                    //sleep(1);
                }
            }
        }
        else if (soap->error)
        {
            if (FoundDevNo == 0)
            {
                printf("No Device found!\n");
                retval = soap->error;
            }
            else
            {
                printf("Search end! Find %d Device! \n", FoundDevNo);
                retval = 0;
            }
            break;
        }
    }

    soap_destroy(soap);
    soap_end(soap);
    soap_free(soap);

    return retval;
}

int main(void )
{

    if (ONVIF_ClientDiscovery() != 0 )
    {
        printf("discovery failed!\n");
        return -1;
    }

    return 0;
}

Onvif相机接上路由器，运行程序之后，成功检测到该Camera，详细信息如下图：（整个工程已经上传，需要的请狂点 我的资源下载）

       转自：http://blog.csdn.net/saloon_yuan/article/details/27524875