summaryrefslogtreecommitdiffstats
path: root/kopete/plugins/motionautoaway/motionawayplugin.cpp
blob: d27901f6c8eb281f00f4bb3780fda10c871bd935 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
/*
    motionawayplugin.cpp

    Kopete Motion Detector Auto-Away plugin

    Copyright (c) 2002 by Duncan Mac-Vicar Prett   <duncan@kde.org>

    Contains code from motion.c ( Detect changes in a video stream )
    Copyright 2000 by Jeroen Vreeken (pe1rxq@amsat.org)
    Distributed under the GNU public license version 2
    See also the file 'COPYING.motion'

    Kopete    (c) 2002 by the Kopete developers  <kopete-devel@kde.org>

    *************************************************************************
    *                                                                       *
    * 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.                                   *
    *                                                                       *
    *************************************************************************
*/

#include "config.h"

#include "motionawayplugin.h"

#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>

#include <tqtimer.h>

#include <tdeconfig.h>
#include <kdebug.h>
#include <kgenericfactory.h>

#include "kopeteaccountmanager.h"
#include "kopeteaway.h"

#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,50)
#define _LINUX_TIME_H
#endif

#ifdef HAVE_LIBV4L1_VIDEODEV_H
#include <libv4l1-videodev.h>
#else
#include <linux/videodev.h>
#endif

#define DEF_WIDTH			352
#define DEF_HEIGHT		288
#define DEF_QUALITY		50
#define DEF_CHANGES		5000

#define DEF_POLL_INTERVAL 1500

#define DEF_GAP			60*5 /* 5 minutes */

#define NORM_DEFAULT		0
#define IN_DEFAULT		8

typedef KGenericFactory<MotionAwayPlugin> MotionAwayPluginFactory;
K_EXPORT_COMPONENT_FACTORY( kopete_motionaway, MotionAwayPluginFactory( "kopete_motionaway" )  )

MotionAwayPlugin::MotionAwayPlugin( TQObject *parent, const char *name, const TQStringList & /* args */ )
: Kopete::Plugin( MotionAwayPluginFactory::instance(), parent, name )
{
	kdDebug(14305) << k_funcinfo << "Called." << endl;
	/* This should be read from config someday may be */
	m_width = DEF_WIDTH;
	m_height = DEF_HEIGHT;
	m_quality = DEF_QUALITY;
	m_maxChanges = DEF_CHANGES;
	m_gap = DEF_GAP;

	/* We haven't took the first picture yet */
	m_tookFirst = false;

	m_captureTimer = new TQTimer(this);
	m_awayTimer = new TQTimer(this);

	connect( m_captureTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(slotCapture()) );
	connect( m_awayTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(slotTimeout()) );

	signal(SIGCHLD, SIG_IGN);

	m_imageRef.resize( m_width * m_height * 3);
	m_imageNew.resize( m_width * m_height * 3);
	m_imageOld.resize( m_width * m_height * 3);
	m_imageOut.resize( m_width * m_height * 3);


	kdDebug(14305) << k_funcinfo << "Opening Video4Linux Device" << endl;

	m_deviceHandler = open( videoDevice.latin1() , O_RDWR);

	if (m_deviceHandler < 0)
	{
		kdDebug(14305) << k_funcinfo << "Can't open Video4Linux Device" << endl;
	}
	else
	{
        kdDebug(14305) << k_funcinfo << "Worked! Setting Capture timers!" << endl;
		/* Capture first image, or we will get a alarm on start */
		getImage (m_deviceHandler, m_imageRef, DEF_WIDTH, DEF_HEIGHT, IN_DEFAULT, NORM_DEFAULT,
	    	VIDEO_PALETTE_RGB24);

        /* We have the first image now */
		m_tookFirst = true;
		m_wentAway = false;

		m_captureTimer->start( DEF_POLL_INTERVAL );
		m_awayTimer->start( awayTimeout * 60 * 1000 );
	}
	loadSettings();
	connect(this, TQT_SIGNAL(settingsChanged()), this, TQT_SLOT( loadSettings() ) );
}

MotionAwayPlugin::~MotionAwayPlugin()
{
    kdDebug(14305) << k_funcinfo << "Closing Video4Linux Device" << endl;
	close (m_deviceHandler);
	kdDebug(14305) << k_funcinfo << "Freeing memory" << endl;
}

void MotionAwayPlugin::loadSettings(){
	TDEConfig *tdeconfig = TDEGlobal::config();
	tdeconfig->setGroup("MotionAway Plugin");

	awayTimeout = tdeconfig->readNumEntry("AwayTimeout", 1);
	becomeAvailableWithActivity = tdeconfig->readBoolEntry("BecomeAvailableWithActivity", true);
	videoDevice = tdeconfig->readEntry("VideoDevice", "/dev/video0");
	m_awayTimer->changeInterval(awayTimeout * 60 * 1000);
}

int MotionAwayPlugin::getImage(int _dev, TQByteArray &_image, int _width, int _height, int _input, int _norm,  int _fmt)
{
	struct video_capability vid_caps;
	struct video_channel vid_chnl;
	struct video_window vid_win;
	struct pollfd video_fd;

	// Just to avoid a warning
	_fmt = 0;

	if (ioctl (_dev, VIDIOCGCAP, &vid_caps) == -1)
	{
		perror ("ioctl (VIDIOCGCAP)");
		return (-1);
	}
	/* Set channels and norms, NOT TESTED my philips cam doesn't have a
	 * tuner. */
	if (_input != IN_DEFAULT)
	{
		vid_chnl.channel = -1;
		if (ioctl (_dev, VIDIOCGCHAN, &vid_chnl) == -1)
		{
			perror ("ioctl (VIDIOCGCHAN)");
		}
		else
		{
			vid_chnl.channel = _input;
			vid_chnl.norm    = _norm;

			if (ioctl (_dev, VIDIOCSCHAN, &vid_chnl) == -1)
			{
				perror ("ioctl (VIDIOCSCHAN)");
				return (-1);
			}
		}
	}
	/* Set image size */
	if (ioctl (_dev, VIDIOCGWIN, &vid_win) == -1)
		return (-1);

	vid_win.width=_width;
	vid_win.height=_height;

	if (ioctl (_dev, VIDIOCSWIN, &vid_win) == -1)
		return (-1);

	/* Check if data available on the video device */
	video_fd.fd = _dev;
	video_fd.events = 0;
	video_fd.events |= POLLIN;
	video_fd.revents = 0;

	poll(&video_fd, 1, 0);

	if (video_fd.revents & POLLIN) {
		/* Read an image */
		return read (_dev, _image.data() , _width * _height * 3);
	} else {
		return (-1);
	}
}

void MotionAwayPlugin::slotCapture()
{
	/* Should go on forever... emphasis on 'should' */
	if ( getImage ( m_deviceHandler, m_imageNew, m_width, m_height, IN_DEFAULT, NORM_DEFAULT,
	    VIDEO_PALETTE_RGB24) == m_width * m_height *3 )
	{
	    int diffs = 0;
        if ( m_tookFirst )
		{
			/* Make a differences picture in image_out */
			for (int i=0; i< m_width * m_height * 3 ; i++)
			{
				m_imageOut[i]= m_imageOld[i]- m_imageNew[i];
				if ((signed char)m_imageOut[i] > 32 || (signed char)m_imageOut[i] < -32)
				{
					m_imageOld[i] = m_imageNew[i];
					diffs++;
				}
				else
				{
					m_imageOut[i] = 0;
				}
			}
		}
		else
		{
			/* First picture: new image is now the old */
			for (int i=0; i< m_width * m_height * 3; i++)
				m_imageOld[i] = m_imageNew[i];
		}

		/* The cat just walked in :) */
		if (diffs > m_maxChanges)
		{
            kdDebug(14305) << k_funcinfo << "Motion Detected. [" << diffs << "] Reseting Timeout" << endl;

			/* If we were away, now we are available again */
			if ( becomeAvailableWithActivity && !Kopete::Away::globalAway() && m_wentAway)
			{
				slotActivity();
			}

			/* We reset the away timer */
            m_awayTimer->stop();
			m_awayTimer->start( awayTimeout * 60 * 1000 );
		}

		/* Old image slowly decays, this will make it even harder on
			slow moving object to stay undetected */
		/*
		for (i=0; i<m_width*m_height*3; i++)
		{
			image_ref[i]=(image_ref[i]+image_new[i])/2;
		}
		*/
	}
	else
	{
		m_captureTimer->stop();
	}
}

void MotionAwayPlugin::slotActivity()
{
	kdDebug(14305) << k_funcinfo << "User activity!, going available" << endl;
	m_wentAway = false;
	Kopete::AccountManager::self()->setAvailableAll();
}

void MotionAwayPlugin::slotTimeout()
{
	if(!Kopete::Away::globalAway() && !m_wentAway)
	{
		kdDebug(14305) << k_funcinfo << "Timeout and no user activity, going away" << endl;
		m_wentAway = true;
		Kopete::AccountManager::self()->setAwayAll();
	}
}

#include "motionawayplugin.moc"
// vim: set noet ts=4 sts=4 sw=4: