Capture

Opens the webcam and captures its feed if available. More...

#include <Capture.h>

Public Member Functions
	Capture ()
	Default constructor.
	Capture (int deviceID, int apiID)
	Constructor. More...
int	getFeed (cv::Mat &src)
	gets the webcam feed More...

Private Attributes
cv::VideoCapture	cap
	Object holding the capture device.
int	deviceId
	Device identification number.
int	apiId
	Device capture API identification number.
cv::Mat	src
	Object holding the capture image(source)
bool	deviceOpened
	Device opened flag.

Detailed Description

Opens the webcam and captures its feed if available.

Constructor & Destructor Documentation

Capture()

Capture::Capture	(	int	deviceID,
		int	apiID
	)

Constructor.

Parameters

deviceID	number of the device
apiID	device capture API number

                                        {
    this->deviceId = deviceID;
    this->apiId = apiId;
 
    cap.open(this->deviceId + this->apiId);
    deviceOpened = false;
 
    if (!cap.isOpened()) {
        std::cerr << "ERROR: Can't open camera feed" << std::endl;
    }
    else {
        std::cout << "Camera feed opened" << std::endl;
        deviceOpened = true;
    }
}

Member Function Documentation

getFeed()

int Capture::getFeed

(

cv::Mat &

src

)

gets the webcam feed

Parameters

src	Pointer to a source OpenCV matrix

Returns

succes or error

                             {
    if (deviceOpened) {
        cap.read(this->src);
 
        if (this->src.empty()) {
            std::cerr << "ERROR: Frame is blank" << std::endl;
            return -1;
        }
        else {
            src = this->src;
            return 1;
        }
    }
    else {
        std::cerr << "ERROR: No device opened" << std::endl;
        return -2;
    }
}

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