From 89354d0a0ce6fbb22ff262658045cdb8796ff6fd Mon Sep 17 00:00:00 2001
From: AlexeyAB <alexeyab84@gmail.com>
Date: Fri, 04 May 2018 20:52:05 +0000
Subject: [PATCH] Fixed memory leaks. And fixes for Web-camera and IP-camera.

---
 src/http_stream.h             |    1 
 src/network.c                 |    5 +
 src/image.c                   |   18 +++++-
 src/box.h                     |    5 +
 src/demo.c                    |   58 ++++++++-----------
 src/detector.c                |   21 +++++++
 src/http_stream.cpp           |   30 ++++++++-
 build/darknet/darknet.vcxproj |    6 +-
 src/darknet.c                 |    9 +++
 9 files changed, 109 insertions(+), 44 deletions(-)

diff --git a/build/darknet/darknet.vcxproj b/build/darknet/darknet.vcxproj
index de0293e..bc4b82d 100644
--- a/build/darknet/darknet.vcxproj
+++ b/build/darknet/darknet.vcxproj
@@ -89,8 +89,8 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>C:\opencv_3.0\opencv\build\include;..\..\3rdparty\include;%(AdditionalIncludeDirectories);$(CudaToolkitIncludeDir);$(cudnn)\include</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_MBCS;OPENCV;_TIMESPEC_DEFINED;_CRT_SECURE_NO_WARNINGS;_CRT_RAND_S;GPU;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <UndefinePreprocessorDefinitions>CUDNN</UndefinePreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRTDBG_MAP_ALLOC;_MBCS;_TIMESPEC_DEFINED;_CRT_SECURE_NO_WARNINGS;_CRT_RAND_S;GPU;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UndefinePreprocessorDefinitions>CUDNN;OPENCV;</UndefinePreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
@@ -132,7 +132,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>C:\opencv_3.0\opencv\build\include;..\..\3rdparty\include;%(AdditionalIncludeDirectories);$(CudaToolkitIncludeDir);$(cudnn)\include</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>CUDNN;OPENCV;_TIMESPEC_DEFINED;_CRT_SECURE_NO_WARNINGS;_CRT_RAND_S;GPU;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>OPENCV;CUDNN;_TIMESPEC_DEFINED;_CRT_SECURE_NO_WARNINGS;_CRT_RAND_S;GPU;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <CLanguageStandard>c11</CLanguageStandard>
       <CppLanguageStandard>c++1y</CppLanguageStandard>
       <PrecompiledHeaderCompileAs>CompileAsCpp</PrecompiledHeaderCompileAs>
diff --git a/src/box.h b/src/box.h
index 31dd22c..0aa0c59 100644
--- a/src/box.h
+++ b/src/box.h
@@ -1,6 +1,11 @@
 #ifndef BOX_H
 #define BOX_H
 
+#ifdef _DEBUG
+#include <stdlib.h> 
+#include <crtdbg.h>  
+#endif
+
 #ifdef YOLODLL_EXPORTS
 #if defined(_MSC_VER)
 #define YOLODLL_API __declspec(dllexport) 
diff --git a/src/darknet.c b/src/darknet.c
index 627b6db..74ac16a 100644
--- a/src/darknet.c
+++ b/src/darknet.c
@@ -1,3 +1,8 @@
+#ifdef _DEBUG
+#include <stdlib.h> 
+#include <crtdbg.h>  
+#endif
+
 #include <time.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -350,6 +355,10 @@
 
 int main(int argc, char **argv)
 {
+#ifdef _DEBUG
+	_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
+#endif
+
     //test_resize("data/bad.jpg");
     //test_box();
     //test_convolutional_layer();
diff --git a/src/demo.c b/src/demo.c
index 4aee54f..9041c73 100644
--- a/src/demo.c
+++ b/src/demo.c
@@ -34,13 +34,10 @@
 static float **probs;
 static box *boxes;
 static network net;
-static image in   ;
 static image in_s ;
-static image det  ;
 static image det_s;
-static image disp = {0};
 static CvCapture * cap;
-static int use_webcam = 0;
+static int cpp_video_capture = 0;
 static float fps = 0;
 static float demo_thresh = 0;
 
@@ -53,7 +50,7 @@
 void draw_detections_cv(IplImage* show_img, int num, float thresh, box *boxes, float **probs, char **names, image **alphabet, int classes);
 void draw_detections_cv_v3(IplImage* show_img, detection *dets, int num, float thresh, char **names, image **alphabet, int classes);
 void show_image_cv_ipl(IplImage *disp, const char *name);
-image get_image_from_stream_resize(CvCapture *cap, int w, int h, IplImage** in_img, int use_webcam);
+image get_image_from_stream_resize(CvCapture *cap, int w, int h, IplImage** in_img, int cpp_video_capture);
 IplImage* in_img;
 IplImage* det_img;
 IplImage* show_img;
@@ -63,16 +60,14 @@
 void *fetch_in_thread(void *ptr)
 {
     //in = get_image_from_stream(cap);
-	in = get_image_from_stream_resize(cap, net.w, net.h, &in_img, use_webcam);
-    if(!in.data){
+	in_s = get_image_from_stream_resize(cap, net.w, net.h, &in_img, cpp_video_capture);
+    if(!in_s.data){
         //error("Stream closed.");
 		printf("Stream closed.\n");
 		flag_exit = 1;
 		return EXIT_FAILURE;
     }
     //in_s = resize_image(in, net.w, net.h);
-	in_s = make_image(in.w, in.h, in.c);
-	memcpy(in_s.data, in.data, in.h*in.w*in.c*sizeof(float));
 	
     return 0;
 }
@@ -102,7 +97,7 @@
 	*/
 	int letter = 0;
 	int nboxes = 0;
-	detection *dets = get_network_boxes(&net, det.w, det.h, demo_thresh, demo_thresh, 0, 1, &nboxes, letter);
+	detection *dets = get_network_boxes(&net, det_s.w, det_s.h, demo_thresh, demo_thresh, 0, 1, &nboxes, letter);
 	if (nms) do_nms_obj(dets, nboxes, l.classes, nms);
 
     printf("\033[2J");
@@ -110,8 +105,8 @@
     printf("\nFPS:%.1f\n",fps);
     printf("Objects:\n\n");
 
-    images[demo_index] = det;
-    det = images[(demo_index + FRAMES/2 + 1)%FRAMES];
+    //images[demo_index] = det;
+    //det = images[(demo_index + FRAMES/2 + 1)%FRAMES];
 	ipl_images[demo_index] = det_img;
 	det_img = ipl_images[(demo_index + FRAMES / 2 + 1) % FRAMES];
     demo_index = (demo_index + 1)%FRAMES;
@@ -119,7 +114,7 @@
 	//draw_detections(det, l.w*l.h*l.n, demo_thresh, boxes, probs, demo_names, demo_alphabet, demo_classes);
 	draw_detections_cv_v3(det_img, dets, nboxes, demo_thresh, demo_names, demo_alphabet, demo_classes);
 	//draw_detections_cv(det_img, l.w*l.h*l.n, demo_thresh, boxes, probs, demo_names, demo_alphabet, demo_classes);
-	free(dets);
+	free_detections(dets, nboxes);
 
 	return 0;
 }
@@ -154,15 +149,20 @@
 
     if(filename){
         printf("video file: %s\n", filename);
-        cap = cvCaptureFromFile(filename);
+//#ifdef CV_VERSION_EPOCH	// OpenCV 2.x
+//		cap = cvCaptureFromFile(filename);
+//#else					// OpenCV 3.x
+		cpp_video_capture = 1;
+		cap = get_capture_video_stream(filename);
+//#endif
     }else{
 		printf("Webcam index: %d\n", cam_index);
-#ifdef CV_VERSION_EPOCH	// OpenCV 2.x
-        cap = cvCaptureFromCAM(cam_index);
-#else					// OpenCV 3.x
-		use_webcam = 1;
+//#ifdef CV_VERSION_EPOCH	// OpenCV 2.x
+//        cap = cvCaptureFromCAM(cam_index);
+//#else					// OpenCV 3.x
+		cpp_video_capture = 1;
 		cap = get_capture_webcam(cam_index);
-#endif
+//#endif
     }
 
     if(!cap) error("Couldn't connect to webcam.\n");
@@ -185,22 +185,17 @@
 
     fetch_in_thread(0);
 	det_img = in_img;
-    det = in;
     det_s = in_s;
 
     fetch_in_thread(0);
     detect_in_thread(0);
-    disp = det;
 	det_img = in_img;
-    det = in;
     det_s = in_s;
 
     for(j = 0; j < FRAMES/2; ++j){
         fetch_in_thread(0);
         detect_in_thread(0);
-        disp = det;
 		det_img = in_img;
-        det = in;
         det_s = in_s;
     }
 
@@ -249,7 +244,7 @@
             }else{
                 char buff[256];
                 sprintf(buff, "%s_%08d", prefix, count);
-                save_image(disp, buff);
+                //save_image(disp, buff);
             }
 
 			// if you run it with param -http_port 8090  then open URL in your web-browser: http://localhost:8090
@@ -275,27 +270,22 @@
 			if (flag_exit == 1) break;
 
             if(delay == 0){
-                free_image(disp);
-                disp  = det;
 				show_img = det_img;
             }
 			det_img = in_img;
-            det   = in;
             det_s = in_s;
         }else {
             fetch_in_thread(0);
 			det_img = in_img;
-            det   = in;
             det_s = in_s;
             detect_in_thread(0);
-            if(delay == 0) {
-                free_image(disp);
-                disp = det;
-            }
+
+			show_img = det_img;
 			if (!dont_show) {
-				show_image(disp, "Demo");
+				show_image_cv_ipl(show_img, "Demo");
 				cvWaitKey(1);
 			}
+			cvReleaseImage(&show_img);
         }
         --delay;
         if(delay < 0){
diff --git a/src/detector.c b/src/detector.c
index a942395..e891cd7 100644
--- a/src/detector.c
+++ b/src/detector.c
@@ -1,3 +1,8 @@
+#ifdef _DEBUG
+#include <stdlib.h> 
+#include <crtdbg.h>  
+#endif
+
 #include "network.h"
 #include "region_layer.h"
 #include "cost_layer.h"
@@ -1107,6 +1112,22 @@
 #endif
         if (filename) break;
     }
+
+	// free memory
+	free_ptrs(names, net.layers[net.n - 1].classes);
+	free_list(options);
+
+	int i;
+	const int nsize = 8;
+	for (j = 0; j < nsize; ++j) {
+		for (i = 32; i < 127; ++i) {
+			free_image(alphabet[j][i]);
+		}
+		free(alphabet[j]);
+	}
+	free(alphabet);
+
+	free_network(net);
 }
 
 void run_detector(int argc, char **argv)
diff --git a/src/http_stream.cpp b/src/http_stream.cpp
index 5449192..a2ffc0c 100644
--- a/src/http_stream.cpp
+++ b/src/http_stream.cpp
@@ -44,6 +44,12 @@
 using std::endl;
 
 #include "opencv2/opencv.hpp"
+#include "opencv2/highgui.hpp"
+#include "opencv2/highgui/highgui_c.h"
+#include "opencv2/imgproc/imgproc_c.h"
+#ifndef CV_VERSION_EPOCH
+#include "opencv2/videoio/videoio.hpp"
+#endif
 using namespace cv;
 
 #include "http_stream.h"
@@ -196,6 +202,18 @@
 }
 // ----------------------------------------
 
+CvCapture* get_capture_video_stream(char *path) {
+	CvCapture* cap = NULL;
+	try {
+		cap = (CvCapture*)new cv::VideoCapture(path);
+	}
+	catch (...) {
+		std::cout << " Error: Web-camera " << path << " can't be opened! \n";
+	}
+	return cap;
+}
+// ----------------------------------------
+
 CvCapture* get_capture_webcam(int index) {
 	CvCapture* cap = NULL;
 	try {
@@ -215,14 +233,18 @@
 	try {
 		cv::VideoCapture &cpp_cap = *(cv::VideoCapture *)cap;
 		cv::Mat frame;
-		if (cpp_cap.isOpened()) {
+		if (cpp_cap.isOpened()) 
+		{
 			cpp_cap >> frame;
-			src = cvCreateImageHeader(cvSize(frame.cols, frame.rows), 8, frame.channels());
-			*src = frame;
+			IplImage tmp = frame;
+			src = cvCloneImage(&tmp);
+		}
+		else {
+			std::cout << " Video-stream stoped! \n";
 		}
 	}
 	catch (...) {
-		std::cout << " Web-camera stoped! \n";
+		std::cout << " Video-stream stoped! \n";
 	}
 	return src;
 }
diff --git a/src/http_stream.h b/src/http_stream.h
index af3d399..78597a0 100644
--- a/src/http_stream.h
+++ b/src/http_stream.h
@@ -9,6 +9,7 @@
 
 void send_mjpeg(IplImage* ipl, int port, int timeout, int quality);
 CvCapture* get_capture_webcam(int index);
+CvCapture* get_capture_video_stream(char *path);
 IplImage* get_webcam_frame(CvCapture *cap);
 
 image image_data_augmentation(IplImage* ipl, int w, int h,
diff --git a/src/image.c b/src/image.c
index b5328e5..499306b 100644
--- a/src/image.c
+++ b/src/image.c
@@ -13,6 +13,7 @@
 #ifdef OPENCV
 #include "opencv2/highgui/highgui_c.h"
 #include "opencv2/imgproc/imgproc_c.h"
+#include "opencv2/core/types_c.h"
 #include "opencv2/core/version.hpp"
 #ifndef CV_VERSION_EPOCH
 #include "opencv2/videoio/videoio_c.h"
@@ -904,20 +905,31 @@
     return im;
 }
 
-image get_image_from_stream_resize(CvCapture *cap, int w, int h, IplImage** in_img, int use_webcam)
+image get_image_from_stream_resize(CvCapture *cap, int w, int h, IplImage** in_img, int cpp_video_capture)
 {
 	IplImage* src;
-	if (use_webcam) src = get_webcam_frame(cap);
+	if (cpp_video_capture) {
+		static int once = 1;
+		if (once) {
+			once = 0;
+			do {
+				src = get_webcam_frame(cap);
+				if (!src) return make_empty_image(0, 0, 0);
+			} while (src->width < 1 || src->height < 1 || src->nChannels < 1);
+		} else
+			src = get_webcam_frame(cap);
+	}
 	else src = cvQueryFrame(cap);
 
 	if (!src) return make_empty_image(0, 0, 0);
+	if (src->width < 1 || src->height < 1 || src->nChannels < 1) return make_empty_image(0, 0, 0);
 	IplImage* new_img = cvCreateImage(cvSize(w, h), IPL_DEPTH_8U, 3);
 	*in_img = cvCreateImage(cvSize(src->width, src->height), IPL_DEPTH_8U, 3);
 	cvResize(src, *in_img, CV_INTER_LINEAR);
 	cvResize(src, new_img, CV_INTER_LINEAR);
 	image im = ipl_to_image(new_img);
 	cvReleaseImage(&new_img);
-	if (use_webcam) cvReleaseImageHeader(&src);
+	if (cpp_video_capture) cvReleaseImage(&src);
 	rgbgr_image(im);
 	return im;
 }
diff --git a/src/network.c b/src/network.c
index ce6d28a..81b53f3 100644
--- a/src/network.c
+++ b/src/network.c
@@ -767,6 +767,11 @@
 		free_layer(net.layers[i]);
 	}
 	free(net.layers);
+
+	free(net.scales);
+	free(net.steps);
+	free(net.seen);
+
 #ifdef GPU
 	if (gpu_index >= 0) cuda_free(net.workspace);
 	else free(net.workspace);

--
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