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vidrect.cpp
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vidrect.cpp
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// Copyright Naoki Shibata 2018. Distributed under the MIT License.
#ifdef _MSC_VER
#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdint.h>
#include <math.h>
#include <time.h>
#include <time.h>
#define CL_USE_DEPRECATED_OPENCL_1_2_APIS
#include <CL/cl.h>
#include <opencv2/opencv.hpp>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
using namespace cv;
#include "vec234.h"
#include "helper.h"
#include "oclhelper.h"
#include "oclimgutil.h"
#include "oclpolyline.h"
#include "oclrect.h"
static void showRect(rect_t rect, int r, int g, int b, int thickness, Mat &img) {
for(int i=0;i<4;i++) {
line(img, cvPoint(rect.c2[i].a[0], rect.c2[i].a[1]), cvPoint(rect.c2[(i+1)%4].a[0], rect.c2[(i+1)%4].a[1]), Scalar(r, g, b), thickness, 8, 0);
}
line(img,
cvPoint(rect.c2[0].a[0], rect.c2[0].a[1]),
cvPoint(rect.c2[2].a[0], rect.c2[2].a[1]), Scalar(r, g, b), 1, 8, 0);
line(img,
cvPoint(rect.c2[1].a[0], rect.c2[1].a[1]),
cvPoint(rect.c2[3].a[0], rect.c2[3].a[1]), Scalar(r, g, b), 1, 8, 0);
}
static int fourcc(const char *s) {
return (((uint32_t)s[0]) << 0) | (((uint32_t)s[1]) << 8) | (((uint32_t)s[2]) << 16) | (((uint32_t)s[3]) << 24);
}
int main(int argc, char **argv) {
if (argc < 2) {
fprintf(stderr, "Usage : %s [device number] [input video file] [output video file] [AOV]\n", argv[0]);
fprintf(stderr, "By specifying cam:<cam id>,<width>,<height> as an input, a camera can be used.\n");
fprintf(stderr, "Output is displayed on an window by specifying - to the output.\n");
fprintf(stderr, "Example command line : vidrect 0 cam:0,1280,720 - 72\n");
fprintf(stderr, "\nAvailable OpenCL Devices :\n");
simpleGetDevice(-1);
exit(-1);
}
//
VideoCapture *cap = NULL;
if (argc < 3) {
cap = new VideoCapture(0);
if (!cap->isOpened()) {
fprintf(stderr, "Cannot open camera 0\n");
exit(-1);
}
} else if (strncmp(argv[2], "cam:", 4) != 0) {
cap = new VideoCapture(argv[2]);
if (!cap->isOpened()) {
fprintf(stderr, "Cannot open %s\n", argv[2]);
exit(-1);
}
} else {
int n = 0, w = 0, h = 0;
sscanf(argv[2], "cam:%d,%d,%d", &n, &w, &h);
cap = new VideoCapture(n);
if (cap->isOpened() && w != 0 && h != 0) {
cap->set(CV_CAP_PROP_FRAME_WIDTH, w);
cap->set(CV_CAP_PROP_FRAME_HEIGHT, h);
}
if (!cap->isOpened()) {
fprintf(stderr, "Cannot open %s\n", argv[2]);
exit(-1);
}
}
int iw = cap->get(CV_CAP_PROP_FRAME_WIDTH);
int ih = cap->get(CV_CAP_PROP_FRAME_HEIGHT);
printf("Resolution : %d x %d\n", iw, ih);
//
VideoWriter *writer = NULL;
const char *winname = "Rectangle Detection Demo";
if (argc < 4 || strcmp(argv[3], "-") == 0) {
namedWindow(winname, WINDOW_AUTOSIZE );
} else {
writer = new VideoWriter(argv[3], fourcc("PIM1"), 30, cvSize(iw, ih), true);
if (!writer->isOpened()) {
fprintf(stderr, "Cannot open %s\n", argv[3]);
exit(-1);
}
}
//
double aov = 90;
int did = 0;
if (argc >= 2) did = atoi(argv[1]);
if (argc >= 5) aov = atof(argv[4]);
printf("Horizontal angle of view : %g degrees\n", aov);
cl_device_id device = simpleGetDevice(did);
printf("%s\n", getDeviceName(device));
cl_context context = simpleCreateContext(device);
cl_command_queue queue = clCreateCommandQueue(context, device, CL_QUEUE_PROFILING_ENABLE, NULL);
if (loadPlan("plan.txt", device) != 0) printf("No plan\n");
if (writer == NULL) printf("\n>>>>> Press ENTER on the window to exit <<<<<\n");
//
oclimgutil_t *oclimgutil = init_oclimgutil(device, context);
oclpolyline_t *oclpolyline = init_oclpolyline(device, context);
oclrect_t *oclrect = init_oclrect(oclimgutil, oclpolyline, device, context, queue, iw, ih);
//
const double tanAOV = tan(aov / 2 / 180.0 * M_PI);
Mat vimg, img[2];
int nFrame = 0, lastNFrame = 0;
uint64_t tm = currentTimeMillis();
cap->grab();
{
cap->retrieve(vimg, 0);
assert(vimg.channels() == 3);
img[0] = vimg.clone();
img[1] = vimg.clone();
uint8_t *data = (uint8_t *)img[nFrame & 1].data;
int ws = img[nFrame & 1].step;
oclrect_enqueueTask(oclrect, data, ws);
cap->grab();
nFrame++;
}
for(;;) {
if (!cap->retrieve(vimg, 0)) break;
vimg.copyTo(img[nFrame & 1]);
uint8_t *data = (uint8_t *)img[nFrame & 1].data;
int ws = img[nFrame & 1].step;
oclrect_enqueueTask(oclrect, data, ws);
cap->grab();
nFrame++;
rect_t *ret = oclrect_pollTask(oclrect, tanAOV);
for(int i=1;i<ret->nItems;i++) { // >>>> This starts from 1 <<<<
switch(ret[i].status) {
case 0:
showRect(ret[i], 0, 255, 0, 1, img[nFrame & 1]);
break;
case 2:
showRect(ret[i], 255, 0, 0, 1, img[nFrame & 1]);
break;
case 1:
showRect(ret[i], 0, 200, 255, 2, img[nFrame & 1]);
break;
case 3:
showRect(ret[i], 0, 0, 255, 2, img[nFrame & 1]);
break;
}
}
if (writer != NULL) {
writer->write(img[nFrame & 1]);
uint64_t t = currentTimeMillis();
if (t - tm > 1000) {
printf("%.3g fps\n", 1000.0 * (nFrame - lastNFrame) / ((double)(t - tm)));
tm = t;
lastNFrame = nFrame;
}
} else {
imshow(winname, img[nFrame & 1]);
int key = waitKey(1) & 0xff;
if (key == 27 || key == 13) break;
}
}
//
dispose_oclrect(oclrect);
dispose_oclpolyline(oclpolyline);
dispose_oclimgutil(oclimgutil);
//
ce(clReleaseCommandQueue(queue));
ce(clReleaseContext(context));
//
if (writer != NULL) delete writer;
delete cap;
destroyAllWindows();
//
exit(0);
}