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/yolo_v2_class.cpp |   43 +++++++++++++++++++++----------------------
 1 files changed, 21 insertions(+), 22 deletions(-)

diff --git a/src/yolo_v2_class.cpp b/src/yolo_v2_class.cpp
index c805e29..03d581a 100644
--- a/src/yolo_v2_class.cpp
+++ b/src/yolo_v2_class.cpp
@@ -22,16 +22,16 @@
 
 #define FRAMES 3
 
+#ifdef GPU
 void check_cuda(cudaError_t status) {
 	if (status != cudaSuccess) {
 		const char *s = cudaGetErrorString(status);
 		printf("CUDA Error Prev: %s\n", s);
 	}
 }
+#endif
 
 struct detector_gpu_t {
-	float **probs;
-	box *boxes;
 	network net;
 	image images[FRAMES];
 	float *avg;
@@ -52,11 +52,12 @@
 	detector_gpu_t &detector_gpu = *static_cast<detector_gpu_t *>(detector_gpu_ptr.get());
 
 #ifdef GPU
-	check_cuda( cudaSetDevice(gpu_id) );
-	printf(" Used GPU %d \n", gpu_id);
+	//check_cuda( cudaSetDevice(cur_gpu_id) );
+	cuda_set_device(cur_gpu_id);
+	printf(" Used GPU %d \n", cur_gpu_id);
 #endif
 	network &net = detector_gpu.net;
-	net.gpu_index = gpu_id;
+	net.gpu_index = cur_gpu_id;
 	//gpu_index = i;
 	
 	char *cfgfile = const_cast<char *>(cfg_filename.data());
@@ -67,7 +68,8 @@
 		load_weights(&net, weightfile);
 	}
 	set_batch_network(&net, 1);
-	net.gpu_index = gpu_id;
+	net.gpu_index = cur_gpu_id;
+	fuse_conv_batchnorm(net);
 
 	layer l = net.layers[net.n - 1];
 	int j;
@@ -76,10 +78,6 @@
 	for (j = 0; j < FRAMES; ++j) detector_gpu.predictions[j] = (float *)calloc(l.outputs, sizeof(float));
 	for (j = 0; j < FRAMES; ++j) detector_gpu.images[j] = make_image(1, 1, 3);
 
-	detector_gpu.boxes = (box *)calloc(l.w*l.h*l.n, sizeof(box));
-	detector_gpu.probs = (float **)calloc(l.w*l.h*l.n, sizeof(float *));
-	for (j = 0; j < l.w*l.h*l.n; ++j) detector_gpu.probs[j] = (float *)calloc(l.classes, sizeof(float));
-
 	detector_gpu.track_id = (unsigned int *)calloc(l.classes, sizeof(unsigned int));
 	for (j = 0; j < l.classes; ++j) detector_gpu.track_id[j] = 1;
 
@@ -100,14 +98,10 @@
 	for (int j = 0; j < FRAMES; ++j) free(detector_gpu.predictions[j]);
 	for (int j = 0; j < FRAMES; ++j) if(detector_gpu.images[j].data) free(detector_gpu.images[j].data);
 
-	for (int j = 0; j < l.w*l.h*l.n; ++j) free(detector_gpu.probs[j]);
-	free(detector_gpu.boxes);
-	free(detector_gpu.probs);
-
 	int old_gpu_index;
 #ifdef GPU
 	cudaGetDevice(&old_gpu_index);
-	cudaSetDevice(detector_gpu.net.gpu_index);
+	cuda_set_device(detector_gpu.net.gpu_index);
 #endif
 
 	free_network(detector_gpu.net);
@@ -221,17 +215,21 @@
 		l.output = detector_gpu.avg;
 		detector_gpu.demo_index = (detector_gpu.demo_index + 1) % FRAMES;
 	}
+	//get_region_boxes(l, 1, 1, thresh, detector_gpu.probs, detector_gpu.boxes, 0, 0);
+	//if (nms) do_nms_sort(detector_gpu.boxes, detector_gpu.probs, l.w*l.h*l.n, l.classes, nms);
 
-	get_region_boxes(l, 1, 1, thresh, detector_gpu.probs, detector_gpu.boxes, 0, 0);
-	if (nms) do_nms_sort(detector_gpu.boxes, detector_gpu.probs, l.w*l.h*l.n, l.classes, nms);
-	//draw_detections(im, l.w*l.h*l.n, thresh, boxes, probs, names, alphabet, l.classes);
+	int nboxes = 0;
+	int letterbox = 0;
+	float hier_thresh = 0.5;
+	detection *dets = get_network_boxes(&net, im.w, im.h, thresh, hier_thresh, 0, 1, &nboxes, letterbox);
+	if (nms) do_nms_sort(dets, nboxes, l.classes, nms);
 
 	std::vector<bbox_t> bbox_vec;
 
-	for (size_t i = 0; i < (l.w*l.h*l.n); ++i) {
-		box b = detector_gpu.boxes[i];
-		int const obj_id = max_index(detector_gpu.probs[i], l.classes);
-		float const prob = detector_gpu.probs[i][obj_id];
+	for (size_t i = 0; i < nboxes; ++i) {
+		box b = dets[i].bbox;
+		int const obj_id = max_index(dets[i].prob, l.classes);
+		float const prob = dets[i].prob[obj_id];
 		
 		if (prob > thresh) 
 		{
@@ -248,6 +246,7 @@
 		}
 	}
 
+	free_detections(dets, nboxes);
 	if(sized.data)
 		free(sized.data);
 

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