CameraThread.cpp

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#include <blort/ThreadObject/CameraThread.h>
#include <opencv2/legacy/compat.hpp>
#include <stdexcept>


CCameraThread::CCameraThread(int camID, int width, int height)
{
        m_mutex.Lock();
                m_new_image = false;
                m_camID = camID;
                m_width = width;
                m_height = height;
                
                m_capture = cvCreateCameraCapture(m_camID);
                
                if(!m_capture)
                        throw std::runtime_error("[CCameraThread::CCameraThread] Can not create camera capture.\n");
                
                cvSetCaptureProperty(m_capture, CV_CAP_PROP_FRAME_WIDTH, m_width );
                cvSetCaptureProperty(m_capture, CV_CAP_PROP_FRAME_HEIGHT, m_height );
                m_image = cvQueryFrame(m_capture);
        m_mutex.Unlock();
}

CCameraThread::~CCameraThread()
{
        this->Stop();
}

BOOL CCameraThread::OnTask()
{
        m_image = cvQueryFrame(m_capture);
        m_new_image = true;
        return TRUE;
}

bool CCameraThread::GetImage(IplImage* image)
{
        if(m_new_image){
                cvCopyImage(m_image, image);
                m_new_image = false;
                return true;
        }
        return false;
}