#include <mutex>
#include <thread>
+#include <condition_variable>
#include "Engine.h"
#include "Logger.h"
+#include "PredictorWrapper.h"
using namespace suanzi;
+using namespace std;
-const static std::string TAG = "Engine";
-
+static const std::string TAG = "Engine";
static std::mutex g_mutex;
-static Engine* g_instance = nullptr;
+static EngineWPtr g_instance;
-Engine::Engine()
-{
- detector = new Detector();
- tracker = new Tracker();
-}
+typedef std::shared_ptr<std::vector<Person>> PersonsInfoPtr;
-Engine* Engine::create()
+EnginePtr Engine::create()
{
LOG_DEBUG(TAG, "create");
std::lock_guard<std::mutex> lock(g_mutex);
- if (g_instance)
- return g_instance;
-
- Engine* instance (new Engine());
+ if (g_instance.lock()){
+ LOG_ERROR(TAG, "already exists");
+ return EnginePtr();
+ }
+ EnginePtr instance (new Engine());
g_instance = instance;
- return g_instance;
+ return instance;
}
-void Engine::destroy()
+Engine::Engine()
{
- delete g_instance;
+ detector = std::make_shared<Detector>();
}
Engine::~Engine()
{
- delete detector;
- delete tracker;
+ destroy();
+}
+
+void Engine::destroy()
+{
+ LOG_DEBUG(TAG, "destroy");
+ detector.reset();
+ multiTracker.reset();
+ reader.reset();
+ observer_list.clear();
}
void Engine::setVideoSrc(VideoSrcType type, const std::string& url)
{
- videoSrc = url;
reader = VideoReaderFactory::createVideoReader(type, url);
}
{
LOG_DEBUG(TAG, "run");
cv::Mat frame;
+ Detection detections[128];
while (reader->read(frame)){
- detector->detect(frame);
+ LOG_DEBUG(TAG, "Size: " << frame.cols << "x" << frame.rows);
+ int total = detector->detect(frame, detections);
+ multiTracker->update(total, detections, frame);
}
}
void Engine::start()
{
LOG_DEBUG(TAG, "start");
+ multiTracker = std::make_shared<MultiTracker>(g_instance);
if (!reader){
LOG_ERROR(TAG, "reader is null. exit");
return;
void Engine::addObserver(EngineObserver *observer)
{
+ LOG_DEBUG(TAG, "addObserver");
observer_list.insert(observer);
}
+
+
+// WorkItem class for event thread
+class PersonInEventWorkItem : public WorkItem
+{
+public:
+ PersonInEventWorkItem(std::set<EngineObserver*> obs, PersonsInfoPtr info) : obs(obs), info(info){
+ }
+ ~PersonInEventWorkItem(){}
+ void run (){
+ for (auto o : obs){
+ o->onPersonsIn(*(info.get()));
+ }
+ }
+private:
+ std::set<EngineObserver*> obs;
+ PersonsInfoPtr info;
+};
+
+class PersonOutEventWorkItem : public WorkItem
+{
+public:
+ PersonOutEventWorkItem(std::set<EngineObserver*> obs, PersonsInfoPtr info) : obs(obs), info(info){
+ }
+ ~PersonOutEventWorkItem(){}
+ void run (){
+ for (auto o : obs){
+ o->onPersonsIn(*(info.get()));
+ }
+ }
+private:
+ std::set<EngineObserver*> obs;
+ PersonsInfoPtr info;
+};
+
+void Engine::onPersonsOut(const std::vector<Person>& p)
+{
+ LOG_DEBUG(TAG, "onPersonOut");
+ PersonsInfoPtr pp = std::make_shared<std::vector<Person>>(p);
+ eventThread.enqueue(new PersonOutEventWorkItem(this->observer_list, pp));
+}
+
+void Engine::onPersonsIn(const std::vector<Person>& p)
+{
+ LOG_DEBUG(TAG, "onPersonIn");
+ PersonsInfoPtr pp = std::make_shared<std::vector<Person>>(p);
+ eventThread.enqueue(new PersonInEventWorkItem(this->observer_list, pp));
+}