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fix error handling in Camera::getDescription()

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This commit is contained in:
uvos 2021-06-08 13:47:06 +02:00
parent b7352f53bb
commit cc6bccad08
2 changed files with 29 additions and 12 deletions
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33
uvoscam.cpp
View file

@ -284,6 +284,7 @@ std::vector<Camera::Description> Camera::getAvailableCameras(bool update)
{
if(!scanned_ || update)
{
arv_enable_interface("Fake");
arv_update_device_list();
scanned_ = true;
}
@ -351,6 +352,7 @@ Camera::~Camera()
}
if(ARV_IS_CAMERA(aCamera_))
g_object_unref(aCamera_);
delete description;
}
bool Camera::isOpen()
@ -461,17 +463,26 @@ void Camera::trigger()
Camera::Description Camera::getDescription()
{
Description desc;
if(ARV_IS_CAMERA(aCamera_))
if(!description)
{
GError* error;
desc.vendor = arv_camera_get_vendor_name(aCamera_, &error);
desc.serial = arv_camera_get_device_serial_number(aCamera_, &error);
desc.id = arv_camera_get_device_id(aCamera_, &error);
desc.model= arv_camera_get_model_name(aCamera_, &error);
if(!error)
return desc;
else return Description();
if(ARV_IS_CAMERA(aCamera_))
{
description = new Description;
GError* error = nullptr;
if(!error)
description->vendor = arv_camera_get_vendor_name(aCamera_, &error);
if(!error)
description->serial = arv_camera_get_device_serial_number(aCamera_, &error);
if(!error)
description->id = arv_camera_get_device_id(aCamera_, &error);
if(!error)
description->model = arv_camera_get_model_name(aCamera_, &error);
if(error)
{
delete description;
description = nullptr;
}
}
}
return desc;
return description ? *description : Description();
}

8
uvoscam.h
View file

@ -39,6 +39,8 @@ public:
class Description
{
private:
size_t hash = 0;
public:
std::string vendor;
std::string serial;
@ -47,7 +49,9 @@ public:
size_t getHash() const
{
return std::hash<std::string>{}(vendor + serial + id + model);
//if(hash == 0)
return /*hash =*/ std::hash<std::string>{}(vendor + serial + id + model);
//return hash;
}
bool operator==(const Description& in) const
@ -83,6 +87,8 @@ private:
ArvStream* aStream_ = nullptr;
ArvCamera* aCamera_ = nullptr;
Description* description = nullptr;
unsigned int width_;
unsigned int height_;
int64_t format = -1;