EasyNVR中使用Onvif协议控制预置位

EasyNVR支持预置位控制，包括转到指定预置位，设置指定预置位，删除指定预置位

预置位在安防领域有较为普遍的应用，可以进行很多既定位置的跳转，很方便

之前我们说过如何用Onvif协议进行设备的发现，探测，以及云台控制等，今天我们来说一下如何使用Onvif进行预置位的操作

流程

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URI，使用这两个URL可以进行流和预置位操作，这里如果PTZ URI获取不到意味着这个设备无法支持预置位控制

_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

_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        }    }}

预置位控制

bool result = false;   PTZBindingProxy* ptzProxy = new PTZBindingProxy;   ptzProxy->soap_endpoint = ptzUrl.c_str();   if (!security(ptzProxy, username, password))   {       delete ptzProxy;       return result;   }   char presetToken[8];   itoa(index, presetToken, 10);   if (command == PRESET_GOTO)   {       _tptz__GotoPreset* preset = soap_new__tptz__GotoPreset(ptzProxy, -1);       _tptz__GotoPresetResponse* response = soap_new__tptz__GotoPresetResponse(ptzProxy, -1);       preset->ProfileToken = const_cast<char*>(profile.c_str());       preset->PresetToken = presetToken;       if (SOAP_OK == ptzProxy->GotoPreset(preset, response))           result = true;       if (response)           soap_delete__tptz__GotoPresetResponse(ptzProxy, response);       if (preset)           soap_delete__tptz__GotoPreset(ptzProxy, preset);   }   else if (command == PRESET_SET)   {       _tptz__SetPreset* preset = soap_new__tptz__SetPreset(ptzProxy, -1);       _tptz__SetPresetResponse* response = soap_new__tptz__SetPresetResponse(ptzProxy, -1);       preset->ProfileToken = const_cast<char*>(profile.c_str());       preset->PresetToken = presetToken;       if (SOAP_OK == ptzProxy->SetPreset(preset, response))           result = true;       if (response)           soap_delete__tptz__SetPresetResponse(ptzProxy, response);       if (preset)           soap_delete__tptz__SetPreset(ptzProxy, preset);   }   else if (command == PRESET_REMOVE)   {       _tptz__RemovePreset* preset = soap_new__tptz__RemovePreset(ptzProxy, -1);       _tptz__RemovePresetResponse* response = soap_new__tptz__RemovePresetResponse(ptzProxy, -1);       preset->ProfileToken = const_cast<char*>(profile.c_str());       preset->PresetToken = presetToken;       if (SOAP_OK == ptzProxy->RemovePreset(preset, response))           result = true;       if (response)           soap_delete__tptz__RemovePresetResponse(ptzProxy, response);       if (preset)           soap_delete__tptz__RemovePreset(ptzProxy, preset);   }   delete ptzProxy;   return result;

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