GUI info adder working multi-frame

include/openpose/gui/guiInfoAdder.hpp

@@ -26,6 +26,7 @@ namespace op
         unsigned int mFpsCounter;
         std::string mLastElementRenderedName;
         int mLastElementRenderedCounter;
+        unsigned long long mLastId;
     };
 }
 

src/openpose/gui/guiInfoAdder.cpp

@@ -7,7 +7,8 @@
 
 namespace op
 {
-    void getFps(double& fps, unsigned int& fpsCounter, std::queue<std::chrono::high_resolution_clock::time_point>& fpsQueue, const int numberGpus)
+    void updateFps(unsigned long long& lastId, double& fps, unsigned int& fpsCounter, std::queue<std::chrono::high_resolution_clock::time_point>& fpsQueue,
+                   const unsigned long long id, const int numberGpus)
     {
         try
         {
@@ -17,6 +18,9 @@ namespace op
                 // However, we update every frame during the first few frames to have an initial estimator.
             // In any of the previous cases, the fps value is estimated during the last several frames.
             // In this way, a sudden fps drop will be quickly visually identified.
+            if (lastId != id)
+            {
+                lastId = id;
                 fpsQueue.emplace(std::chrono::high_resolution_clock::now());
                 bool updatePrintedFps = true;
                 if (fpsQueue.size() > 5)
@@ -34,6 +38,7 @@ namespace op
                     fps = (fpsQueue.size()-1) / (timeSec != 0. ? timeSec : 1.);
                 }
             }
+        }
         catch (const std::exception& e)
         {
             error(e.what(), __LINE__, __FUNCTION__, __FILE__);
@@ -46,7 +51,8 @@ namespace op
         mNumberGpus{numberGpus},
         mGuiEnabled{guiEnabled},
         mFpsCounter{0u},
-        mLastElementRenderedCounter{std::numeric_limits<int>::max()}
+        mLastElementRenderedCounter{std::numeric_limits<int>::max()},
+        mLastId{-1u}
     {
     }
 
@@ -57,10 +63,12 @@ namespace op
             // Security checks
             if (cvOutputData.empty())
                 error("Wrong input element (empty cvOutputData).", __LINE__, __FUNCTION__, __FILE__);
-            // Used colors
-            const cv::Scalar white{255,255,255};
+
             // Update fps
-            getFps(mFps, mFpsCounter, mFpsQueue, mNumberGpus);
+            updateFps(mLastId, mFps, mFpsCounter, mFpsQueue, id, mNumberGpus);
+
+            // Used colors
+            const cv::Scalar white{255, 255, 255};
             // Fps or s/gpu
             char charArrayAux[15];
             std::snprintf(charArrayAux, 15, "%4.1f fps", mFps);