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/*------------------------------------------------------------------------
* Copyright 2007-2009 (c) Jeff Brown <spadix@users.sourceforge.net>
*
* This file is part of the ZBar Bar Code Reader.
*
* The ZBar Bar Code Reader is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* The ZBar Bar Code Reader 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License
* along with the ZBar Bar Code Reader; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* http://sourceforge.net/projects/zbar
*------------------------------------------------------------------------*/
#include "config.h"
#include <argp.h>
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <assert.h>
#include <zbar.h>
#include "test_images.h"
#ifdef _WIN32
struct timespec {
time_t tv_sec;
long tv_nsec;
};
#endif
zbar_video_t *video;
#define PROGRAM_NAME "test_video"
static const char doc[] =
"\nTest if ZBar is able to handle a video input (camera)\n";
static const struct argp_option options[] = {
{ "quiet", 'q', 0, 0, "Don't be verbose", 0 },
{ "dev", 'd', "devnode", 0, "open devnode for video in", 0 },
{ "format", 'f', "fourcc", 0, "Stop after #seconds", 0 },
{ "help", '?', 0, 0, "Give this help list", -1 },
{ "usage", -3, 0, 0, "Give a short usage message", 0 },
{ 0 }
};
static int quiet = 0;
uint32_t vidfmt = fourcc('B', 'G', 'R', '3');
char *dev = "";
static error_t parse_opt(int k, char *optarg, struct argp_state *state)
{
switch (k) {
case 'q':
quiet = 1;
break;
case 'f': {
int len = strlen(optarg);
if (len > 4)
len = 4;
memcpy((char *)&vidfmt, optarg, len);
if (len < 4)
memset(len + (char *)&vidfmt, 0, 4 - len);
break;
}
case 'd':
dev = optarg;
break;
case '?':
argp_state_help(state, state->out_stream,
ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG | ARGP_HELP_DOC);
exit(0);
case -3:
argp_state_help(state, state->out_stream, ARGP_HELP_USAGE);
exit(0);
default:
return ARGP_ERR_UNKNOWN;
};
return 0;
}
static const struct argp argp = {
.options = options,
.parser = parse_opt,
.doc = doc,
};
int main(int argc, char *argv[])
{
if (argp_parse(&argp, argc, argv, ARGP_NO_HELP | ARGP_NO_EXIT, 0, 0)) {
argp_help(&argp, stderr, ARGP_HELP_SHORT_USAGE, PROGRAM_NAME);
return -1;
}
if (!quiet)
zbar_set_verbosity(31);
else
zbar_set_verbosity(0);
video = zbar_video_create();
if (!video) {
fprintf(stderr, "unable to allocate memory?!\n");
return (1);
}
zbar_video_request_size(video, 640, 480);
if (zbar_video_open(video, dev)) {
zbar_video_error_spew(video, 0);
fprintf(stderr,
"ERROR: unable to access your video device\n"
"this program requires video capture support using"
" v4l version 1 or 2 or VfW\n"
" - is your video device located at \"%s\"?\n"
" - is your video driver installed? (check dmesg)\n"
" - make sure you have the latest drivers\n"
" - do you have read/write permission to access it?\n"
" - is another application is using it?\n"
" - does the device support video capture?\n"
" - does the device work with other programs?\n",
dev);
return (1);
}
if (!quiet) {
fprintf(stderr, "opened video device: %s (fd=%d)\n", dev,
zbar_video_get_fd(video));
fflush(stderr);
}
if (zbar_video_init(video, vidfmt)) {
fprintf(stderr, "ERROR: failed to set format: %.4s(%08x)\n",
(char *)&vidfmt, vidfmt);
return (zbar_video_error_spew(video, 0));
}
if (zbar_video_enable(video, 1)) {
fprintf(stderr, "ERROR: starting video stream\n");
return (zbar_video_error_spew(video, 0));
}
if (!quiet) {
fprintf(stderr, "started video stream...\n");
fflush(stderr);
}
zbar_image_t *image = zbar_video_next_image(video);
if (!image) {
fprintf(stderr, "ERROR: unable to capture image\n");
return (zbar_video_error_spew(video, 0));
}
uint32_t format = zbar_image_get_format(image);
unsigned width = zbar_image_get_width(image);
unsigned height = zbar_image_get_height(image);
const uint8_t *data = zbar_image_get_data(image);
if (!quiet) {
fprintf(stderr, "captured image: %d x %d %.4s @%p\n", width, height,
(char *)&format, data);
fflush(stderr);
}
zbar_image_destroy(image);
if (!quiet) {
fprintf(stderr, "\nstreaming 100 frames...\n");
fflush(stderr);
}
struct timespec start, end;
#if _POSIX_TIMERS > 0
clock_gettime(CLOCK_REALTIME, &start);
#else
struct timeval ustime;
gettimeofday(&ustime, NULL);
start.tv_nsec = ustime.tv_usec * 1000;
start.tv_sec = ustime.tv_sec;
#endif
int i;
for (i = 0; i < 100; i++) {
zbar_image_t *image = zbar_video_next_image(video);
if (!image) {
fprintf(stderr, "ERROR: unable to capture image\n");
return (zbar_video_error_spew(video, 0));
}
zbar_image_destroy(image);
}
#if _POSIX_TIMERS > 0
clock_gettime(CLOCK_REALTIME, &end);
#else
gettimeofday(&ustime, NULL);
end.tv_nsec = ustime.tv_usec * 1000;
end.tv_sec = ustime.tv_sec;
#endif
double ms = (end.tv_sec - start.tv_sec +
(end.tv_nsec - start.tv_nsec) / 1000000000.);
double fps = i / ms;
if (!quiet) {
fprintf(stderr, "\nprocessed %d images in %gs @%gfps\n", i, ms, fps);
fflush(stderr);
}
if (zbar_video_enable(video, 0)) {
fprintf(stderr, "ERROR: while stopping video stream\n");
return (zbar_video_error_spew(video, 0));
}
if (!quiet) {
fprintf(stderr, "\ncleaning up...\n");
fflush(stderr);
}
zbar_video_destroy(video);
if (test_image_check_cleanup())
return (32);
fprintf(stderr, "video PASSED.\n");
return (0);
}
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