本文整理汇总了C++中EventPtr::addFrame方法的典型用法代码示例。如果您正苦于以下问题：C++ EventPtr::addFrame方法的具体用法？C++ EventPtr::addFrame怎么用？C++ EventPtr::addFrame使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类EventPtr的用法示例。
在下文中一共展示了EventPtr::addFrame方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: convertToEvent
/**
* @brief Video::convertToEvent
* @param path
* @return
*/
EventPtr Video::convertToEvent(std::string path){
cv::Mat shot;
FramePtr frame;
EventPtr event;
unsigned int j=0;
int framecount=0;
double tmpPos = getFramePos();
setFramePos(0);
emit startProgress(0, (uint) getLengthFrames());
while(getNextFrame(shot)){
emit progressChanged(j);
if (event.isNull()){
event = EventPtr(new Event(this));
}
// create new frame
frame = FramePtr(new Frame(this, shot, path));
// add frame to event
event->addFrame(frame);
framecount ++;
j++;
}
setFramePos(tmpPos);
return event;
}示例2: startProgress
/**
* @brief Automatically splits the video into several events provided the
* given parameters.
* @param threshold
* @param maxcount
* @param mincount
* @param history
* @param varThreshold
* @param bShadowDetection
* @param path
* @return
*/
std::deque<EventPtr> Video::autoDetectEvents(double threshold,
double maxcount,
double mincount,
int history,
int varThreshold,
bool bShadowDetection,
std::string path){
cv::Mat shot;
FramePtr frame;
SnapshotPtr snap;
EventPtr event;
std::deque<EventPtr> events;
unsigned int j=0;
int emptycount=0;
int framecount=0;
int value;
int absoluteThreshold = threshold/100*resolution.width*resolution.height;
int i;
// Initialization of background subtraction
bgSubInit(history, varThreshold, bShadowDetection);
setFramePos(0);
emit startProgress(0, (uint) getLengthFrames());
while(getNextFrame(shot)){
QCoreApplication::processEvents();
if (toCancel){
events.clear();
canceled();
return events;
}
bg->NewFrame(shot);
bg->Denoise();
emit progressChanged(j);
value = cv::countNonZero(bg->Foreground());
// Detected change
if ( value > absoluteThreshold ){
if (event.isNull()){
event = EventPtr(new Event(this));
}
// create new frame
frame = FramePtr(new Frame(this, shot, path));
snap = SnapshotPtr(new Snapshot(frame, bg->Foreground(), path));
// add frame to event
event->addFrame(frame);
event->addSnapshot(snap);
framecount ++;
emptycount = 0;
}
// Did not detect change
else if (!event.isNull()){
emptycount ++;
// create new frame
frame = FramePtr(new Frame(this, shot, path));
snap = SnapshotPtr(new Snapshot(frame, bg->Foreground(), path));
// add frame to event
event->addFrame(frame);
event->addSnapshot(snap);
framecount ++;
if(emptycount > maxcount){
if (framecount - emptycount > mincount){
// remove extra frames with no movement
for (i = 0; i < maxcount; i++){
event->remLastFrame();
event->remLastSnapshot();
}
events.push_back(event);
}
event.clear();
emptycount = 0;
framecount = 0;
}
}
j++;
}
// Check if Video ended in the middle of an Event.
if (!event.isNull()){
if (framecount > mincount){
events.push_back(event);
} else {
event.clear();
}
}
//.........这里部分代码省略.........