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 
29 namespace firevision {
30 #if 0 /* just to make Emacs auto-indent happy */
31 }
32 #endif
33 
34 class CameraArgumentParser;
35 class V4L1CameraData;
36 
37 class V4L1Camera : public Camera
38 {
39  friend class V4LCamera;
40 
41  public:
42  V4L1Camera(const char *device_name = "/dev/video0");
43  V4L1Camera(const CameraArgumentParser *cap);
44  virtual ~V4L1Camera();
45 
46  virtual void open();
47  virtual void start();
48  virtual void stop();
49  virtual void close();
50  virtual void flush();
51  virtual void capture();
52  virtual void print_info();
53  virtual bool ready();
54 
55  virtual unsigned char* buffer();
56  virtual unsigned int buffer_size();
57  virtual void dispose_buffer();
58 
59  virtual unsigned int pixel_width();
60  virtual unsigned int pixel_height();
61  virtual colorspace_t colorspace();
62 
63  virtual void set_image_number(unsigned int n);
64 
65  protected:
66  V4L1Camera(const char *device_name, int dev);
67 
68  private:
69  virtual void post_open();
70 
71  private:
72 
73  static const int MMAP = 1;
74  static const int READ = 2;
75 
76  V4L1CameraData *__data;
77 
78  bool opened;
79  bool started;
80 
81  int capture_method;
82 
83  int dev;
84  unsigned char *frame_buffer;
85 
86 
87 };
88 
89 } // end namespace firevision
90 
91 #endif
virtual colorspace_t colorspace()
Colorspace of returned image.
Definition: v4l1.cpp:463
Camera interface for image aquiring devices in FireVision.
Definition: camera.h:35
virtual void dispose_buffer()
Dispose current buffer.
Definition: v4l1.cpp:409
V4L1Camera(const char *device_name="/dev/video0")
Constructor.
Definition: v4l1.cpp:96
virtual void set_image_number(unsigned int n)
Set image number to retrieve.
Definition: v4l1.cpp:483
virtual unsigned int buffer_size()
Size of buffer.
Definition: v4l1.cpp:428
virtual void open()
Open the camera.
Definition: v4l1.cpp:148
Camera argument parser.
Definition: camargp.h:38
virtual void close()
Close camera.
Definition: v4l1.cpp:434
General Video4Linux camera implementation.
Definition: v4l.h:37
virtual unsigned int pixel_height()
Height of image in pixels.
Definition: v4l1.cpp:452
virtual unsigned int pixel_width()
Width of image in pixels.
Definition: v4l1.cpp:442
virtual void capture()
Capture an image.
Definition: v4l1.cpp:378
virtual void print_info()
Print out camera information.
Definition: v4l1.cpp:231
Video4Linux 1 camera implementation.
Definition: v4l1.h:37
virtual bool ready()
Camera is ready for taking pictures.
Definition: v4l1.cpp:476
virtual void stop()
Stop image transfer from the camera.
Definition: v4l1.cpp:224
virtual ~V4L1Camera()
Destructor.
Definition: v4l1.cpp:141
virtual unsigned char * buffer()
Get access to current image buffer.
Definition: v4l1.cpp:422
virtual void start()
Start image transfer from the camera.
Definition: v4l1.cpp:211
virtual void flush()
Flush image queue.
Definition: v4l1.cpp:470