From ae43c2bc32fbb838bfebeeaf2c2b058ccab5c83c Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@burninator.cs.washington.edu>
Date: Thu, 23 Jun 2016 05:31:14 +0000
Subject: [PATCH] hi
---
src/demo.c | 198 +++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 198 insertions(+), 0 deletions(-)
diff --git a/src/demo.c b/src/demo.c
new file mode 100644
index 0000000..d05ff6b
--- /dev/null
+++ b/src/demo.c
@@ -0,0 +1,198 @@
+#include "network.h"
+#include "detection_layer.h"
+#include "cost_layer.h"
+#include "utils.h"
+#include "parser.h"
+#include "box.h"
+#include "image.h"
+#include "demo.h"
+#include <sys/time.h>
+
+#define FRAMES 3
+
+#ifdef OPENCV
+#include "opencv2/highgui/highgui_c.h"
+#include "opencv2/imgproc/imgproc_c.h"
+void convert_detections(float *predictions, int classes, int num, int square, int side, int w, int h, float thresh, float **probs, box *boxes, int only_objectness);
+
+#define DELAY 0
+static int delay = DELAY;
+
+static char **demo_names;
+static image *demo_labels;
+static int demo_classes;
+
+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 float fps = 0;
+static float demo_thresh = 0;
+
+static float *predictions[FRAMES];
+static int demo_index = 0;
+static image images[FRAMES];
+static float *avg;
+
+void *fetch_in_thread(void *ptr)
+{
+ in = get_image_from_stream(cap);
+ if(!in.data){
+ in = disp;
+ if(delay == DELAY) error("Stream closed.");
+ }else{
+ if(disp.data){
+ free_image(disp);
+ }
+ in_s = resize_image(in, net.w, net.h);
+ }
+ return 0;
+}
+
+void *detect_in_thread(void *ptr)
+{
+ float nms = .4;
+
+ detection_layer l = net.layers[net.n-1];
+ float *X = det_s.data;
+ float *prediction = network_predict(net, X);
+
+ memcpy(predictions[demo_index], prediction, l.outputs*sizeof(float));
+ if(delay == DELAY){
+ mean_arrays(predictions, FRAMES, l.outputs, avg);
+ }
+
+ free_image(det_s);
+ convert_detections(avg, l.classes, l.n, l.sqrt, l.side, 1, 1, demo_thresh, probs, boxes, 0);
+ if (nms > 0) do_nms(boxes, probs, l.side*l.side*l.n, 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];
+ demo_index = (demo_index + 1)%FRAMES;
+
+ draw_detections(det, l.side*l.side*l.n, demo_thresh, boxes, probs, demo_names, demo_labels, demo_classes);
+ if(delay == 0){
+ delay = DELAY;
+ } else {
+ --delay;
+ }
+ return 0;
+}
+
+double get_wall_time()
+{
+ struct timeval time;
+ if (gettimeofday(&time,NULL)){
+ return 0;
+ }
+ return (double)time.tv_sec + (double)time.tv_usec * .000001;
+}
+
+void demo(char *cfgfile, char *weightfile, float thresh, int cam_index, const char *filename, char **names, image *labels, int classes)
+{
+ demo_names = names;
+ demo_labels = labels;
+ demo_classes = classes;
+ demo_thresh = thresh;
+ printf("Demo\n");
+ net = parse_network_cfg(cfgfile);
+ if(weightfile){
+ load_weights(&net, weightfile);
+ }
+ set_batch_network(&net, 1);
+
+ srand(2222222);
+
+ if(filename){
+ cap = cvCaptureFromFile(filename);
+ }else{
+ cap = cvCaptureFromCAM(cam_index);
+ }
+
+ if(!cap) error("Couldn't connect to webcam.\n");
+
+ detection_layer l = net.layers[net.n-1];
+ int j;
+
+ avg = (float *) calloc(l.outputs, sizeof(float));
+ for(j = 0; j < FRAMES; ++j) predictions[j] = (float *) calloc(l.outputs, sizeof(float));
+ for(j = 0; j < FRAMES; ++j) images[j] = make_image(1,1,3);
+
+ boxes = (box *)calloc(l.side*l.side*l.n, sizeof(box));
+ probs = (float **)calloc(l.side*l.side*l.n, sizeof(float *));
+ for(j = 0; j < l.side*l.side*l.n; ++j) probs[j] = (float *)calloc(l.classes, sizeof(float *));
+
+ pthread_t fetch_thread;
+ pthread_t detect_thread;
+
+ fetch_in_thread(0);
+ det = in;
+ det_s = in_s;
+
+ fetch_in_thread(0);
+ detect_in_thread(0);
+ disp = det;
+ det = in;
+ det_s = in_s;
+
+ for(j = 0; j < FRAMES/2; ++j){
+ fetch_in_thread(0);
+ detect_in_thread(0);
+ disp = det;
+ det = in;
+ det_s = in_s;
+ }
+
+ int count = 0;
+ cvNamedWindow("Demo", CV_WINDOW_NORMAL);
+ cvMoveWindow("Demo", 0, 0);
+ cvResizeWindow("Demo", 1352, 1013);
+
+ double before = get_wall_time();
+
+ while(1){
+ ++count;
+ if(pthread_create(&fetch_thread, 0, fetch_in_thread, 0)) error("Thread creation failed");
+ if(pthread_create(&detect_thread, 0, detect_in_thread, 0)) error("Thread creation failed");
+ //fetch_in_thread(0);
+ //detect_in_thread(0);
+
+ show_image(disp, "Demo");
+ cvWaitKey(1);
+ //char buff[256];
+ //sprintf(buff, "coco/coco_%05d", count);
+ //save_image(disp, buff);
+
+ //free_image(disp);
+ //cvWaitKey(10);
+ pthread_join(fetch_thread, 0);
+ pthread_join(detect_thread, 0);
+
+ disp = det;
+ det = in;
+ det_s = in_s;
+
+ if(delay == DELAY){
+ double after = get_wall_time();
+ float curr = 1./(after - before);
+ fps = curr;
+ before = after;
+ }
+ }
+}
+#else
+void demo(char *cfgfile, char *weightfile, float thresh, int cam_index, const char *filename, char **names, image *labels, int classes)
+{
+ fprintf(stderr, "Demo needs OpenCV for webcam images.\n");
+}
+#endif
+
--
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