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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "uca.h"
struct image_props {
uint32_t width;
uint32_t height;
uint32_t bits;
};
void grab_callback(uint64_t image_number, void *buffer, void *meta_data, void *user)
{
struct image_props *props = (struct image_props *) user;
const int pixel_size = props->bits == 8 ? 1 : 2;
char filename[256];
sprintf(filename, "out-%04llu.raw", image_number);
FILE *fp = fopen(filename, "wb");
fwrite(buffer, props->width * props->height, pixel_size, fp);
fclose(fp);
printf("grabbed picture %llu at %p (%ix%i @ %i bits)\n", image_number, buffer, props->width, props->height, props->bits);
}
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;
uca_cam_set_property(cam, UCA_PROP_EXPOSURE, &val);
val = 0;
uca_cam_set_property(cam, UCA_PROP_DELAY, &val);
struct image_props props;
uca_cam_get_property(cam, UCA_PROP_WIDTH, &props.width, 0);
uca_cam_get_property(cam, UCA_PROP_HEIGHT, &props.height, 0);
uca_cam_get_property(cam, UCA_PROP_BITDEPTH, &props.bits, 0);
uca_cam_alloc(cam, 10);
uca_cam_register_callback(cam, &grab_callback, &props);
uca_cam_start_recording(cam);
printf("grabbing for 2 seconds\n");
sleep(2);
uca_cam_stop_recording(cam);
printf("done\n");
fflush(stdout);
uca_destroy(u);
return 0;
}
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