1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#include <stdio.h>
#include <stdlib.h>
#include "uca.h"
#define handle_error(errno) {if ((errno) != UCA_NO_ERROR) printf("error at <%s:%i>\n", \
__FILE__, __LINE__);}
int main(int argc, char *argv[])
{
struct uca *u = uca_init(NULL);
if (u == NULL) {
printf("Couldn't find a camera\n");
return 1;
}
/* take first camera */
struct uca_camera *cam = u->cameras;
uint32_t val = 5000;
handle_error(uca_cam_set_property(cam, UCA_PROP_EXPOSURE, &val));
val = 0;
handle_error(uca_cam_set_property(cam, UCA_PROP_DELAY, &val));
val = 1;
handle_error(uca_cam_set_property(cam, UCA_PROP_GRAB_SYNCHRONOUS, &val));
uint32_t width, height, bits;
handle_error(uca_cam_get_property(cam, UCA_PROP_WIDTH, &width, 0));
handle_error(uca_cam_get_property(cam, UCA_PROP_HEIGHT, &height, 0));
handle_error(uca_cam_get_property(cam, UCA_PROP_BITDEPTH, &bits, 0));
handle_error(uca_cam_alloc(cam, 10));
const int pixel_size = bits == 8 ? 1 : 2;
uint16_t *buffer = (uint16_t *) malloc(width * height * pixel_size);
handle_error(uca_cam_start_recording(cam));
handle_error(uca_cam_grab(cam, (char *) buffer, NULL));
handle_error(uca_cam_stop_recording(cam));
uca_destroy(u);
FILE *fp = fopen("out.raw", "wb");
fwrite(buffer, width*height, pixel_size, fp);
fclose(fp);
free(buffer);
return 0;
}
|
