From eae7b34cc0906268ddef2e64551ea5ca0951c0c8 Mon Sep 17 00:00:00 2001
From: Ruslan_Lenin <9992012@gmail.com>
Date: Fri, 29 Jun 2018 08:39:03 +0000
Subject: [PATCH] Update gemm.c

---
 src/demo.c |  104 ++++++++++++++++++++++++++++++++++++----------------
 1 files changed, 72 insertions(+), 32 deletions(-)

diff --git a/src/demo.c b/src/demo.c
index 9041c73..34627ce 100644
--- a/src/demo.c
+++ b/src/demo.c
@@ -40,6 +40,7 @@
 static int cpp_video_capture = 0;
 static float fps = 0;
 static float demo_thresh = 0;
+static int demo_ext_output = 0;
 
 static float *predictions[FRAMES];
 static int demo_index = 0;
@@ -48,19 +49,26 @@
 static float *avg;
 
 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 draw_detections_cv_v3(IplImage* show_img, detection *dets, int num, float thresh, char **names, image **alphabet, int classes, int ext_output);
 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 cpp_video_capture);
+image get_image_from_stream_resize(CvCapture *cap, int w, int h, int c, IplImage** in_img, int cpp_video_capture, int dont_close);
+image get_image_from_stream_letterbox(CvCapture *cap, int w, int h, int c, IplImage** in_img, int cpp_video_capture, int dont_close);
+int get_stream_fps(CvCapture *cap, int cpp_video_capture);
 IplImage* in_img;
 IplImage* det_img;
 IplImage* show_img;
 
 static int flag_exit;
+static int letter_box = 0;
 
 void *fetch_in_thread(void *ptr)
 {
     //in = get_image_from_stream(cap);
-	in_s = get_image_from_stream_resize(cap, net.w, net.h, &in_img, cpp_video_capture);
+	int dont_close_stream = 0;	// set 1 if your IP-camera periodically turns off and turns on video-stream
+	if(letter_box) 
+		in_s = get_image_from_stream_letterbox(cap, net.w, net.h, net.c, &in_img, cpp_video_capture, dont_close_stream);
+	else
+		in_s = get_image_from_stream_resize(cap, net.w, net.h, net.c, &in_img, cpp_video_capture, dont_close_stream);
     if(!in_s.data){
         //error("Stream closed.");
 		printf("Stream closed.\n");
@@ -85,35 +93,27 @@
     l.output = avg;
 
     free_image(det_s);
-	/*
-    if(l.type == DETECTION){
-        get_detection_boxes(l, 1, 1, demo_thresh, probs, boxes, 0);
-    } else if (l.type == REGION){
-        get_region_boxes(l, 1, 1, demo_thresh, probs, boxes, 0, 0);
-    } else {
-        error("Last layer must produce detections\n");
-    }
-    if (nms > 0) do_nms(boxes, probs, l.w*l.h*l.n, l.classes, nms);
-	*/
-	int letter = 0;
+
 	int nboxes = 0;
-	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);
+	detection *dets = NULL;
+	if (letter_box)
+		dets = get_network_boxes(&net, in_img->width, in_img->height, demo_thresh, demo_thresh, 0, 1, &nboxes, 1); // letter box
+	else
+		dets = get_network_boxes(&net, det_s.w, det_s.h, demo_thresh, demo_thresh, 0, 1, &nboxes, 0); // resized
+	//if (nms) do_nms_obj(dets, nboxes, l.classes, nms);	// bad results
+	if (nms) do_nms_sort(dets, nboxes, l.classes, nms);
+	
 
     printf("\033[2J");
     printf("\033[1;1H");
     printf("\nFPS:%.1f\n",fps);
     printf("Objects:\n\n");
 
-    //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;
 	    
-	//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);
+	draw_detections_cv_v3(det_img, dets, nboxes, demo_thresh, demo_names, demo_alphabet, demo_classes, demo_ext_output);
 	free_detections(dets, nboxes);
 
 	return 0;
@@ -129,7 +129,7 @@
 }
 
 void demo(char *cfgfile, char *weightfile, float thresh, float hier_thresh, int cam_index, const char *filename, char **names, int classes,
-	int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show)
+	int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show, int ext_output)
 {
     //skip = frame_skip;
     image **alphabet = load_alphabet();
@@ -138,6 +138,7 @@
     demo_alphabet = alphabet;
     demo_classes = classes;
     demo_thresh = thresh;
+	demo_ext_output = ext_output;
     printf("Demo\n");
     net = parse_network_cfg_custom(cfgfile, 1);	// set batch=1
     if(weightfile){
@@ -165,7 +166,12 @@
 //#endif
     }
 
-    if(!cap) error("Couldn't connect to webcam.\n");
+	if (!cap) {
+#ifdef WIN32
+		printf("Check that you have copied file opencv_ffmpeg340_64.dll to the same directory where is darknet.exe \n");
+#endif
+		error("Couldn't connect to webcam.\n");
+	}
 
     layer l = net.layers[net.n-1];
     int j;
@@ -211,15 +217,17 @@
 	{
 		CvSize size;
 		size.width = det_img->width, size.height = det_img->height;
+		int src_fps = 25;
+		src_fps = get_stream_fps(cap, cpp_video_capture);
 
 		//const char* output_name = "test_dnn_out.avi";
-		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('H', '2', '6', '4'), 25, size, 1);
-		output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('D', 'I', 'V', 'X'), 25, size, 1);
-		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'J', 'P', 'G'), 25, size, 1);
-		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', 'V'), 25, size, 1);
-		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', '2'), 25, size, 1);
-		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('X', 'V', 'I', 'D'), 25, size, 1);
-		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('W', 'M', 'V', '2'), 25, size, 1);
+		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('H', '2', '6', '4'), src_fps, size, 1);
+		output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('D', 'I', 'V', 'X'), src_fps, size, 1);
+		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'J', 'P', 'G'), src_fps, size, 1);
+		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', 'V'), src_fps, size, 1);
+		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', '2'), src_fps, size, 1);
+		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('X', 'V', 'I', 'D'), src_fps, size, 1);
+		//output_video_writer = cvCreateVideoWriter(out_filename, CV_FOURCC('W', 'M', 'V', '2'), src_fps, size, 1);
 	}
 
     double before = get_wall_time();
@@ -240,10 +248,15 @@
 						else if (frame_skip == 60) frame_skip = 4;
 						else frame_skip = 0;
 					}
+					else if (c == 27 || c == 1048603) // ESC - exit (OpenCV 2.x / 3.x)
+					{
+						flag_exit = 1;
+					}
 				}
             }else{
                 char buff[256];
-                sprintf(buff, "%s_%08d", prefix, count);
+                sprintf(buff, "%s_%08d.jpg", prefix, count);
+				cvSaveImage(buff, show_img, 0);
                 //save_image(disp, buff);
             }
 
@@ -302,10 +315,37 @@
 		cvReleaseVideoWriter(&output_video_writer);
 		printf("output_video_writer closed. \n");
 	}
+
+	// free memory
+	cvReleaseImage(&show_img);
+	cvReleaseImage(&in_img);
+	free_image(in_s);
+
+	free(avg);
+	for (j = 0; j < FRAMES; ++j) free(predictions[j]);
+	for (j = 0; j < FRAMES; ++j) free_image(images[j]);
+
+	for (j = 0; j < l.w*l.h*l.n; ++j) free(probs[j]);
+	free(boxes);
+	free(probs);
+
+	free_ptrs(names, net.layers[net.n - 1].classes);
+
+	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);
 }
 #else
 void demo(char *cfgfile, char *weightfile, float thresh, float hier_thresh, int cam_index, const char *filename, char **names, int classes,
-	int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show)
+	int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show, int ext_output)
 {
     fprintf(stderr, "Demo needs OpenCV for webcam images.\n");
 }

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