void VideoExtractor::processFrame(void)
{
IplImage * src1, * src2;
src1 = m_videoStream[0]->getImage();
if(m_dual)
src2 = m_videoStream[1]->getImage();
ImageDataPtr source1 = nullptr, source2 = nullptr;
if(src1)
source1 = ImageDataPtr(new ImageData(*src1));
if( m_dual && src2 )
source2 = ImageDataPtr(new ImageData(*src2));
else if(! src1)
throw Exception::buildException("Aucune source valable", "VideoExtractor",
"run", EPC);
ImageDataPtr result;
//endOfCapture = timer.nsecsElapsed();
if( m_isHandleActived )
result = VirtualHandle::executeHandle(m_paramHandle.toString().toStdString(), source1, source2);
else
result = source1;
//endOfHandle = timer.nsecsElapsed();
if( ! result)
{
throw Exception::buildException("Votre traitement ne retourne pas de résultat!", "VideoExtractor",
"run", EPC);
}
m_nbImageHandled++;
emit imageHandled(result, source1, source2);
}
ImageDataPtr ImageData::getSubRegion(int x, int y, int width, int height)
{
ImageData * retour = new ImageData();
CvRect cvrect = cvRect(x,y,width, height);
if( width < 0 )
{
cvrect.x = x + width;
cvrect.width = -width;
}
if( height < 0 )
{
cvrect.y = y + height;
cvrect.height = -height;
}
retour->m_image = cvCreateImage( cvSize(cvrect.width,cvrect.height),m_image->depth,m_image->nChannels);
cvSetImageROI(m_image,cvrect);// définit la région d'intérêt
cvCopy(m_image, retour->m_image,0);// copier le bout sélectionné dans dest
return ImageDataPtr( retour );
}
void VideoExtractor::run(void)
{
bool stoppedByUser = true;
QElapsedTimer timer;
//qint64 endOfCapture;
//qint64 endOfHandle;
qint64 begin;
IplImage * src1, * src2;
timer.start();
while( ! m_stopped )
{
mutex.lock();
while(!threadLanced)
{
cond.wait(&mutex);
}
mutex.unlock();
begin = timer.nsecsElapsed();
m_videoStream[0]->grab(); // a for for that ... I'm too lazy
m_videoStream[1]->grab();
if( m_timeMax && m_timeMax > begin)
{
stoppedByUser = false;
break;
}
src1 = m_videoStream[0]->getImage();
src2 = m_videoStream[1]->getImage();
ImageDataPtr source1 = nullptr, source2 = nullptr;
if(src1)
source1 = ImageDataPtr(new ImageData(*src1));
if(src2)
source2 = ImageDataPtr(new ImageData(*src2));
else if(! src1)
break;
//endOfCapture = timer.nsecsElapsed();
ImageDataPtr result;
if(isStarted())
result = VirtualHandle::executeHandle(m_paramHandle.toString().toStdString(), source1, source2);
else
result = source1;
//endOfHandle = timer.nsecsElapsed();
if( ! result)
{
throw Exception::buildException("Votre traitement ne retourne pas de résultat!", "VideoExtractor", "run", EPC);
}
m_nbImageHandled++;
emit imageHandled(result, source1, source2);
if( m_nbMaxImage && m_nbImageHandled == m_nbMaxImage )
{
stoppedByUser = false;
break;
}
qint64 waitTime = ( m_paramPeriod.toInt() - timer.nsecsElapsed() + begin )/1000;
if(waitTime < 0)
{
/* std::cerr << "Warning : la boucle a du retard : " << waitTime
<< "\nDuree de la boucle : " << m_paramPeriod.toInt()
<< "\nDuree reelle : " << timer.nsecsElapsed() << std::endl; */
}
else
QThread::usleep( waitTime );
}
emit finished(stoppedByUser);
deleteLater();
}