mirror of
https://github.com/systemd/systemd.git
synced 2024-11-06 08:26:52 +03:00
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2009 Kay Sievers <kay.sievers@vrfy.org>
|
|
* Copyright (c) 2009 Filippo Argiolas <filippo.argiolas@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details:
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <getopt.h>
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/ioctl.h>
|
|
#include <linux/videodev.h>
|
|
#include <linux/videodev2.h>
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
static const struct option options[] = {
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{}
|
|
};
|
|
int fd;
|
|
char *device;
|
|
struct video_capability v1cap;
|
|
struct v4l2_capability v2cap;
|
|
|
|
while (1) {
|
|
int option;
|
|
|
|
option = getopt_long(argc, argv, "h", options, NULL);
|
|
if (option == -1)
|
|
break;
|
|
|
|
switch (option) {
|
|
case 'h':
|
|
printf("Usage: v4l_id [--help] <device file>\n\n");
|
|
return 0;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
device = argv[optind];
|
|
|
|
if (device == NULL)
|
|
return 2;
|
|
fd = open (device, O_RDONLY);
|
|
if (fd < 0)
|
|
return 3;
|
|
|
|
if (ioctl (fd, VIDIOC_QUERYCAP, &v2cap) == 0) {
|
|
printf("ID_V4L_VERSION=2\n");
|
|
printf("ID_V4L_PRODUCT=%s\n", v2cap.card);
|
|
printf("ID_V4L_CAPABILITIES=:");
|
|
if ((v2cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) > 0)
|
|
printf("capture:");
|
|
if ((v2cap.capabilities & V4L2_CAP_VIDEO_OUTPUT) > 0)
|
|
printf("video_output:");
|
|
if ((v2cap.capabilities & V4L2_CAP_VIDEO_OVERLAY) > 0)
|
|
printf("video_overlay:");
|
|
if ((v2cap.capabilities & V4L2_CAP_AUDIO) > 0)
|
|
printf("audio:");
|
|
if ((v2cap.capabilities & V4L2_CAP_TUNER) > 0)
|
|
printf("tuner:");
|
|
if ((v2cap.capabilities & V4L2_CAP_RADIO) > 0)
|
|
printf("radio:");
|
|
printf("\n");
|
|
} else if (ioctl (fd, VIDIOCGCAP, &v1cap) == 0) {
|
|
printf("ID_V4L_VERSION=1\n");
|
|
printf("ID_V4L_PRODUCT=%s\n", v1cap.name);
|
|
printf("ID_V4L_CAPABILITIES=:");
|
|
if ((v1cap.type & VID_TYPE_CAPTURE) > 0)
|
|
printf("capture:");
|
|
if ((v1cap.type & VID_TYPE_OVERLAY) > 0)
|
|
printf("video_overlay:");
|
|
if (v1cap.audios > 0)
|
|
printf("audio:");
|
|
if ((v1cap.type & VID_TYPE_TUNER) > 0)
|
|
printf("tuner:");
|
|
printf("\n");
|
|
}
|
|
|
|
close (fd);
|
|
return 0;
|
|
}
|