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上一篇我们说到如何发现网内Onvif设备,还有如何探测特定设备的信息EasyNVR-Onvif(一)使用Onvif协议进行设备发现以及指定设备信息探测
这里我们说如何进行很重要的信息获取,就是设备的流地址,也就是设备的RTSP地址
流程
要获取设备的RTSP地址,我们首先需要获取到设备的Device Service Address,也就是上一篇得到的
如果需要获取更进一步的信息,我们需要知道此设备的用户名密码,不知道是无法进行下去的
获取设备能力Capabilities
获取设备的能力,并且可以获取到Media和PTZ的URL,使用这两个URL可以进行流和PTZ操作
_tds__GetCapabilities* capabilities = soap_new__tds__GetCapabilities(proxyDevice, -1);
tt__CapabilityCategory* category = new tt__CapabilityCategory;
capabilities->Category = category;
*(capabilities->Category) = tt__CapabilityCategory__All;
_tds__GetCapabilitiesResponse* response = soap_new__tds__GetCapabilitiesResponse(proxyDevice, -1);
if (SOAP_OK == proxyDevice->GetCapabilities(capabilities, response))
{
if (response->Capabilities)
{
//Media URI: response->Capabilities->Media->XAddr;
//PTZ URI: response->Capabilities->PTZ->XAddr;
}
}
获取Media Profile
使用上一步获取到的Media URI获取设备的Media Profile
_trt__GetProfiles* getProfiles = soap_new__trt__GetProfiles(proxyMedia, -1);
_trt__GetProfilesResponse* response = soap_new__trt__GetProfilesResponse(proxyMedia, -1);
if (SOAP_OK == proxyMedia->GetProfiles(getProfiles, response))
{
int size = response->__sizeProfiles;
for (int i = 0; i < size; ++i)
{
if (response->Profiles[i])
{
//Media Profile Token: response->Profiles[i]->token;
//一般设备包含多个Profile Token,包含主码流、子码流、第三码流
}
}
}
获取Media Uri
使用获取的Media URI和Media Profile Token获取对应的Media Uri,也就是RTSP地址
MediaBindingProxy* proxyMedia = new MediaBindingProxy;
proxyMedia->soap_endpoint = mediaUrl.c_str();
_trt__GetStreamUri* getStreamUri = soap_new__trt__GetStreamUri(proxyMedia, -1);
tt__StreamSetup* streamSetup = soap_new_tt__StreamSetup(proxyMedia, -1);
getStreamUri->StreamSetup = streamSetup;
getStreamUri->StreamSetup->Stream = tt__StreamType__RTP_Unicast;
tt__Transport* transport = soap_new_tt__Transport(proxyMedia, -1);
getStreamUri->StreamSetup->Transport = transport;
getStreamUri->StreamSetup->Transport->Protocol = tt__TransportProtocol__RTSP;
_trt__GetStreamUriResponse* response = soap_new__trt__GetStreamUriResponse(proxyMedia, -1);
if (!profile.empty())
{
getStreamUri->ProfileToken = const_cast<char*>(profile.c_str());
if (security(proxyMedia, username, password))
{
if (proxyMedia->GetStreamUri(getStreamUri, response) == SOAP_OK)
{
//RTSP地址: response->MediaUri->Uri
}
}
}
获取到RTSP地址就可以进行拉流操作了
获取更多信息
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