Fawkes API Fawkes Development Version
v4l1.h
1
2/***************************************************************************
3 * v4l1.h - This header defines a Video4Linux cam
4 *
5 * Generated: Fri Mar 11 17:46:31 2005
6 * Copyright 2005 Tim Niemueller [www.niemueller.de]
7 *
8 ****************************************************************************/
9
10/* This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version. A runtime exception applies to
14 * this software (see LICENSE.GPL_WRE file mentioned below for details).
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Library General Public License for more details.
20 *
21 * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22 */
23
24#ifndef _FIREVISION_CAMS_V4L1_H_
25#define _FIREVISION_CAMS_V4L1_H_
26
27#include <fvcams/camera.h>
28
29namespace firevision {
30
31class CameraArgumentParser;
32class V4L1CameraData;
33class V4LCamera;
34
35class V4L1Camera : public Camera
36{
37 friend V4LCamera;
38
39public:
40 V4L1Camera(const char *device_name = "/dev/video0");
42 virtual ~V4L1Camera();
43
44 virtual void open();
45 virtual void start();
46 virtual void stop();
47 virtual void close();
48 virtual void flush();
49 virtual void capture();
50 virtual void print_info();
51 virtual bool ready();
52
53 virtual unsigned char *buffer();
54 virtual unsigned int buffer_size();
55 virtual void dispose_buffer();
56
57 virtual unsigned int pixel_width();
58 virtual unsigned int pixel_height();
59 virtual colorspace_t colorspace();
60
61 virtual void set_image_number(unsigned int n);
62
63protected:
64 V4L1Camera(const char *device_name, int dev);
65
66private:
67 virtual void post_open();
68
69private:
70 static const int MMAP = 1;
71 static const int READ = 2;
72
73 V4L1CameraData *data_;
74
75 bool opened;
76 bool started;
77
78 int capture_method;
79
80 int dev;
81 unsigned char *frame_buffer;
82};
83
84} // end namespace firevision
85
86#endif
Camera argument parser.
Definition: camargp.h:36
Camera interface for image aquiring devices in FireVision.
Definition: camera.h:33
Video4Linux 1 camera implementation.
Definition: v4l1.h:36
virtual void open()
Open the camera.
Definition: v4l1.cpp:142
virtual void dispose_buffer()
Dispose current buffer.
Definition: v4l1.cpp:390
virtual unsigned char * buffer()
Get access to current image buffer.
Definition: v4l1.cpp:402
virtual void print_info()
Print out camera information.
Definition: v4l1.cpp:224
virtual void flush()
Flush image queue.
Definition: v4l1.cpp:448
virtual colorspace_t colorspace()
Colorspace of returned image.
Definition: v4l1.cpp:442
virtual void set_image_number(unsigned int n)
Set image number to retrieve.
Definition: v4l1.cpp:459
virtual void capture()
Capture an image.
Definition: v4l1.cpp:361
virtual unsigned int pixel_height()
Height of image in pixels.
Definition: v4l1.cpp:432
virtual unsigned int pixel_width()
Width of image in pixels.
Definition: v4l1.cpp:422
virtual bool ready()
Camera is ready for taking pictures.
Definition: v4l1.cpp:453
V4L1Camera(const char *device_name="/dev/video0")
Constructor.
Definition: v4l1.cpp:93
virtual void start()
Start image transfer from the camera.
Definition: v4l1.cpp:207
virtual unsigned int buffer_size()
Size of buffer.
Definition: v4l1.cpp:408
virtual void stop()
Stop image transfer from the camera.
Definition: v4l1.cpp:218
virtual ~V4L1Camera()
Destructor.
Definition: v4l1.cpp:136
virtual void close()
Close camera.
Definition: v4l1.cpp:414
General Video4Linux camera implementation.
Definition: v4l.h:35