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/*
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"
#if defined(__Linux__)
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,50)
#define _LINUX_TIME_H
#endif
#endif
#include VIDEODEV_HEADER
#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:
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