forked from tTh/FloatImg
105 lines
2.1 KiB
C
105 lines
2.1 KiB
C
/*
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* tests pour capturer les webcams
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <math.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <linux/videodev2.h>
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#include "../floatimg.h"
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#include "v4l2_pr_structs.h"
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#include "funcs.h"
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int verbosity;
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/* --------------------------------------------------------------------- */
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int show_webcam_infos(char *devname, int k)
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{
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int vfd, foo;
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struct v4l2_capability cap;
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struct v4l2_format fmt;
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// struct v4l2_requestbuffers reqbuf;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, devname, k);
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#endif
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vfd = open_device(devname);
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if (vfd < 0) {
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perror(devname);
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return -3;
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}
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fprintf(stderr, "\topen %s -> %d\n", devname, vfd);
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foo = ioctl(vfd, VIDIOC_QUERYCAP, &cap);
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if (foo < 0) {
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perror("ioctl QUERYCAP");
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return -4;
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}
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pr_v4l2_capability(devname, &cap);
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if ( ! (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
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fprintf("%s : no video capture\n", devname);
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}
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close(vfd);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int liste_des_devices(int flag)
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{
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fprintf(stderr, "%s not implemented\n", __func__);
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return -1;
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}
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/* --------------------------------------------------------------------- */
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void help(int k)
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{
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puts("Options :");
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puts("\t-d\tselect the video device");
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puts("\t-K\tset the K parameter");
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puts("\t-l\tlist video devices");
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puts("\t-v\tincrease verbosity");
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if (verbosity) { puts(""); fimg_print_version(1); }
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exit(0);
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}
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/* --------------------------------------------------------------------- */
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int main(int argc, char *argv[])
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{
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int foo, opt;
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char *device = "/dev/video0";
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int K = 0;
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while ((opt = getopt(argc, argv, "d:hK:lv")) != -1) {
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switch(opt) {
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case 'd': device = optarg; break;
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case 'h': help(0); break;
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case 'K': K = atol(optarg); break;
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case 'l': liste_des_devices(0); break;
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case 'v': verbosity++; break;
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}
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}
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if (verbosity) fimg_print_version(0);
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foo = show_webcam_infos(device, K);
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fprintf(stderr, "\tshow_webcam_infos -> %d\n", foo);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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