00001 /*!@file Transport/BobDeinterlacer.H Deinterlace frames with the "bob" method */ 00002 00003 // //////////////////////////////////////////////////////////////////// // 00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2005 // 00005 // by the University of Southern California (USC) and the iLab at USC. // 00006 // See http://iLab.usc.edu for information about this project. // 00007 // //////////////////////////////////////////////////////////////////// // 00008 // Major portions of the iLab Neuromorphic Vision Toolkit are protected // 00009 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency // 00010 // in Visual Environments, and Applications'' by Christof Koch and // 00011 // Laurent Itti, California Institute of Technology, 2001 (patent // 00012 // pending; application number 09/912,225 filed July 23, 2001; see // 00013 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status). // 00014 // //////////////////////////////////////////////////////////////////// // 00015 // This file is part of the iLab Neuromorphic Vision C++ Toolkit. // 00016 // // 00017 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can // 00018 // redistribute it and/or modify it under the terms of the GNU General // 00019 // Public License as published by the Free Software Foundation; either // 00020 // version 2 of the License, or (at your option) any later version. // 00021 // // 00022 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope // 00023 // that it will be useful, but WITHOUT ANY WARRANTY; without even the // 00024 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR // 00025 // PURPOSE. See the GNU General Public License for more details. // 00026 // // 00027 // You should have received a copy of the GNU General Public License // 00028 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write // 00029 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, // 00030 // Boston, MA 02111-1307 USA. // 00031 // //////////////////////////////////////////////////////////////////// // 00032 // 00033 // Primary maintainer for this file: Rob Peters <rjpeters at usc dot edu> 00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Transport/BobDeinterlacer.H $ 00035 // $Id: BobDeinterlacer.H 9547 2008-03-28 23:32:43Z rjpeters $ 00036 // 00037 00038 #ifndef TRANSPORT_BOBDEINTERLACER_H_DEFINED 00039 #define TRANSPORT_BOBDEINTERLACER_H_DEFINED 00040 00041 #include "Transport/Deinterlacer.H" 00042 #include "Util/SimTime.H" 00043 #include "Video/VideoFrame.H" 00044 #include "rutz/time.h" 00045 00046 /// Deinterlace frames using the "bob" method 00047 /** In short, the "bob" method separates the top and bottom 00048 half-frames, rescales each of them up to full size, and then 00049 displays a video stream at double the normal rate. It is named 00050 "bob" for the slight bobbing up and down that may occur due to the 00051 one-pixel vertical offset between the top and bottom half frames; 00052 however in practice this bobbing usually imperceptible. 00053 00054 See http://en.wikipedia.org/wiki/Deinterlacing and 00055 http://www.100fps.com/ and for lots of information on various 00056 deinterlacing methods. */ 00057 class BobDeinterlacer : public Deinterlacer 00058 { 00059 public: 00060 /// Constructor 00061 BobDeinterlacer(OptionManager& mgr); 00062 00063 /// Destructor 00064 virtual ~BobDeinterlacer(); 00065 00066 /// Install a FrameListener 00067 /** NOTE! The listener will get the NON-DEINTERLACED frames! */ 00068 void setListener(rutz::shared_ptr<FrameListener> listener); 00069 00070 /// Return the specifications of the next frame 00071 virtual GenericFrameSpec peekFrameSpec(); 00072 00073 /// Get the natural deinterlaced frame (this will be half the frame time of our delegate) 00074 virtual SimTime getNaturalFrameTime() const; 00075 00076 /// Advise the deinterlacer of the current frame number; pass along to our delegate 00077 virtual bool setFrameNumber(int n); 00078 00079 /// Get a streaming grab started; reset our timing variables 00080 virtual void startStream(); 00081 00082 /// Get the next bob-deinterlaced frame 00083 virtual GenericFrame readFrame(); 00084 00085 protected: 00086 virtual void start2(); 00087 virtual void stop2(); 00088 00089 private: 00090 SimTime itsFieldTime; 00091 int itsFrameNumber; 00092 VideoFrame itsCurFullFrame; 00093 rutz::time itsLastFrameTime; 00094 rutz::time itsLastBottomTime; 00095 double itsUsleepAdjustment; 00096 bool itsDeinterlacing; 00097 bool itsInBottomField; 00098 }; 00099 00100 // ###################################################################### 00101 /* So things look consistent in everyone's emacs... */ 00102 /* Local Variables: */ 00103 /* mode: c++ */ 00104 /* indent-tabs-mode: nil */ 00105 /* End: */ 00106 00107 #endif // TRANSPORT_BOBDEINTERLACER_H_DEFINED
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