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/*------------------------------------------------------------------------
* Copyright 2007-2011 (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"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_LIBV4L2_H
#include <fcntl.h>
#include <libv4l2.h>
#else
#define v4l2_open open
#define v4l2_close close
#endif
#include "video.h"
extern int _zbar_v4l1_probe(zbar_video_t *);
extern int _zbar_v4l2_probe(zbar_video_t *);
int _zbar_video_open(zbar_video_t *vdo, const char *dev)
{
vdo->fd = v4l2_open(dev, O_RDWR);
if (vdo->fd < 0)
return (err_capture_str(vdo, SEV_ERROR, ZBAR_ERR_SYSTEM, __func__,
"opening video device '%s'", dev));
zprintf(1, "opened camera device %s (fd=%d)\n", dev, vdo->fd);
int rc = -1;
#ifdef HAVE_LINUX_VIDEODEV2_H
if (vdo->intf != VIDEO_V4L1)
rc = _zbar_v4l2_probe(vdo);
#endif
#ifdef HAVE_LINUX_VIDEODEV_H
if (rc && vdo->intf != VIDEO_V4L2)
rc = _zbar_v4l1_probe(vdo);
#endif
if (rc && vdo->fd >= 0) {
v4l2_close(vdo->fd);
vdo->fd = -1;
}
return (rc);
}
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