Dirac - A Video Codec

Created by the British Broadcasting Corporation.


motion_arrows.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: motion_arrows.h,v 1.3 2004/11/22 13:42:33 asuraparaju Exp $ $Name: Dirac_0_5_2 $
00004 *
00005 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00006 *
00007 * The contents of this file are subject to the Mozilla Public License
00008 * Version 1.1 (the "License"); you may not use this file except in compliance
00009 * with the License. You may obtain a copy of the License at
00010 * http://www.mozilla.org/MPL/
00011 *
00012 * Software distributed under the License is distributed on an "AS IS" basis,
00013 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
00014 * the specific language governing rights and limitations under the License.
00015 *
00016 * The Original Code is BBC Research and Development code.
00017 *
00018 * The Initial Developer of the Original Code is the British Broadcasting
00019 * Corporation.
00020 * Portions created by the Initial Developer are Copyright (C) 2004.
00021 * All Rights Reserved.
00022 *
00023 * Contributor(s): Chris Bowley (Original Author)
00024 *
00025 * Alternatively, the contents of this file may be used under the terms of
00026 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
00027 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
00028 * the GPL or the LGPL are applicable instead of those above. If you wish to
00029 * allow use of your version of this file only under the terms of the either
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00031 * under the MPL, indicate your decision by deleting the provisions above
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00036 * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef _MOTION_ARROWS_H_
00039 #define _MOTION_ARROWS_H_
00040 
00041 #include <util/instrumentation/libdirac_instrument/draw_overlay.h>
00042 namespace dirac_instr
00043 {
00044 
00046     /*
00047         Sub-class of DrawOverlay.
00048         16 x 16 pixel arrows used to represent motion vectors
00049         Each arrow may represent a number of motion vectors, in which case
00050         their mean is used
00051     */
00052     class DrawMotionArrows : public DrawOverlay
00053     {
00054     public :
00056         /*
00057             Calls DrawOverlay constructor
00058         */    
00059         DrawMotionArrows(Frame &, DrawFrameMotionParams &, const MvArray &, int);
00060 
00062         ~DrawMotionArrows();
00063 
00065         //                                                        //
00066         //    Assumes default copy constructor and assignment =   //
00067         //                                                        //
00069             
00071         void DrawBlock(int, int);
00072         
00074         /*
00075             Base class function required to be overridden
00076         */
00077         void DrawLegend();
00078         
00079     protected :
00081         void DrawArrow(int, int, int, int);
00082         
00084         int m_mv_scale;
00085         
00087         int m_blocks_per_arrow_y, m_blocks_per_arrow_x;
00088         
00090         const MvArray & m_mv;
00091     };
00092 
00093 } // namespace dirac_instr
00094 
00095 #endif

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