Dirac - A Video Codec

Created by the British Broadcasting Corporation.


me_mode_decn.h

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00001 /* ***** BEGIN LICENSE BLOCK ***** 00002 * 00003 * $Id: me_mode_decn.h,v 1.7 2004/08/25 16:47:37 asuraparaju Exp $ $Name: Dirac_0_4_3 $ 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): Thomas Davies (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 00030 * the GPL or LGPL and not to allow others to use your version of this file 00031 * under the MPL, indicate your decision by deleting the provisions above 00032 * and replace them with the notice and other provisions required by the GPL 00033 * or LGPL. If you do not delete the provisions above, a recipient may use 00034 * your version of this file under the terms of any one of the MPL, the GPL 00035 * or the LGPL. 00036 * ***** END LICENSE BLOCK ***** */ 00037 00038 #ifndef _ME_MODE_DECN_H_ 00039 #define _ME_MODE_DECN_H_ 00040 00041 #include <libdirac_common/motion.h> 00042 #include <libdirac_motionest/block_match.h> 00043 00044 class FrameBuffer; 00045 00047 00070 class ModeDecider 00071 { 00072 00073 public: 00075 00080 ModeDecider(const EncoderParams& encp ); 00081 00083 00086 ~ModeDecider(); 00087 00089 00095 void DoModeDecn( const FrameBuffer& my_buffer , int frame_num , MEData& me_data); 00096 00097 private: 00098 ModeDecider( const ModeDecider& cpy );//private, body-less copy constructor: this class should not be copied 00099 ModeDecider& operator=( const ModeDecider& rhs );//private, body-less assignment=: this class should not be assigned 00100 00101 //functions 00102 void DoMBDecn(); //called by do_mode_decn for each MB 00103 00105 void DoLevelDecn( int level ); 00106 00108 float DoUnitDecn( const int xpos , const int ypos , const int level ); 00109 00111 float DoCommonMode( PredMode& predmode , const int level); 00112 00114 void DoME( const int xpos , const int ypos , const int level ); 00115 00116 00118 float ModeCost( const int xindex , const int yindex , const PredMode predmode ); 00119 00121 ValueType GetDCPred( int xblock , int yblock ); 00122 00124 float GetDCVar( const ValueType dc_val , const ValueType dc_pred); 00125 00126 // Member data 00127 FrameSort fsort; 00128 00130 const EncoderParams& m_encparams; 00131 00133 float m_lambda; 00134 00136 OneDArray<float> m_level_factor; 00137 00138 00140 OneDArray<float> m_mode_factor; 00141 00143 OneDArray< MEData* > m_me_data_set; 00144 00145 const PicArray* m_pic_data; 00146 const PicArray* m_ref1_updata; 00147 const PicArray* m_ref2_updata; 00148 int num_refs; 00149 00150 IntraBlockDiff* m_intradiff; 00151 BiBChkBlockDiffUp* m_bicheckdiff; 00152 00153 //position variables, used in all the mode decisions 00154 int m_xmb_loc,m_ymb_loc; //coords of the current MB 00155 00156 }; 00157 00158 #endif

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