zoneminder/src/zm_camera.cpp

//
// ZoneMinder Camera Class Implementation, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
// 
// 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.
// 
// This program 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 General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
// 

#include "zm.h"
#include "zm_camera.h"

Camera::Camera( unsigned int p_monitor_id, SourceType p_type, unsigned int p_width, unsigned int p_height, int p_colours, int p_subpixelorder, int p_brightness, int p_contrast, int p_hue, int p_colour, bool p_capture, bool p_record_audio ) :
    monitor_id( p_monitor_id ),
    type( p_type ),
    width( p_width),
    height( p_height ),
    colours( p_colours ),
    subpixelorder( p_subpixelorder ),    
    brightness( p_brightness ),
    hue( p_hue ),
    colour( p_colour ),
    contrast( p_contrast ),
    capture( p_capture ),
    record_audio( p_record_audio ),
    mVideoStreamId(-1),
    mAudioStreamId(-1),
    mVideoCodecContext(NULL),
    mAudioCodecContext(NULL),
    video_stream(NULL)
{
  pixels = width * height;
  imagesize = pixels * colours;
  
  Debug(2,"New camera id: %d width: %d height: %d colours: %d subpixelorder: %d capture: %d",monitor_id,width,height,colours,subpixelorder,capture);
  
  /* Because many loops are unrolled and work on 16 colours/time or 4 pixels/time, we have to meet requirements */
  if((colours == ZM_COLOUR_GRAY8 || colours == ZM_COLOUR_RGB32) && (imagesize % 64) != 0) {
    Fatal("Image size is not multiples of 64");
  } else if(colours == ZM_COLOUR_RGB24 && ((imagesize % 64) != 0 || (imagesize % 12) != 0)) {
    Fatal("Image size is not multiples of 12 and 64");
  }
  monitor = NULL;
}

Camera::~Camera() {
}

Monitor *Camera::getMonitor() {
  if ( ! monitor ) {
    Warning("Loading monitor");
    monitor = Monitor::Load( monitor_id, false, Monitor::QUERY );
  }
  return monitor;
} 

void Camera::setMonitor( Monitor *p_monitor ) {
  monitor = p_monitor;
  monitor_id = monitor->Id();
}