# 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 1.18 2008/10/01 01:26:47 asuraparaju Exp $ $Name: Dirac_1_0_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): 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 namespace dirac
    00045 {
    00046     class EncQueue;
    00047
    00049
    00069     class ModeDecider
    00070     {
    00071
    00072     public:
    00074
    00079         ModeDecider(const EncoderParams& encp );
    00080
    00082
    00085         ~ModeDecider();
    00086
    00088
    00093         void DoModeDecn( EncQueue& my_buffer , int pic_num );
    00094
    00095     private:
    00096         ModeDecider( const ModeDecider& cpy );//private, body-less copy constructor: this class should not be copied
    00097         ModeDecider& operator=( const ModeDecider& rhs );//private, body-less assignment=: this class should not be assigned
    00098
    00099          //functions
    00100         void DoSBDecn();    //called by do_mode_decn for each SB
    00101
    00103         void DoLevelDecn( int level );
    00104
    00106         float DoUnitDecn( const int xpos , const int ypos , const int level );
    00107
    00109         void DoME( const int xpos , const int ypos , const int level );
    00110
    00112         float ModeCost( const int xindex , const int yindex );
    00113
    00115         ValueType GetDCPred( int xblock , int yblock );
    00116
    00118         float GetDCVar( const ValueType dc_val , const ValueType dc_pred);
    00119
    00121         void SetDC( EncQueue& my_buffer, int pic_num);
    00122
    00124         void SetDC(const PicArray& pic_data, MEData& me_data,CompSort cs);
    00125
    00127         ValueType GetBlockDC(const PicArray& pic_data, int xloc,int yloc,int split, CompSort cs);
    00128
    00129
    00130          // Member data
    00131         PictureSort m_psort;
    00132
    00134     const EncoderParams& m_encparams;
    00135
    00137         const PicturePredParams* m_predparams;
    00138
    00140         float m_lambda;
    00141
    00143         OneDArray<float> m_level_factor;
    00144
    00145
    00147         OneDArray<float> m_mode_factor;
    00148
    00150         OneDArray< MEData* > m_me_data_set;
    00151
    00152         const PicArray* m_pic_data;
    00153         const PicArray* m_ref1_updata;
    00154         const PicArray* m_ref2_updata;
    00155         int num_refs;
    00156
    00157         IntraBlockDiff* m_intradiff;
    00158         BiBlockDiff* m_bicheckdiff;
    00159
    00160         //position variables, used in all the mode decisions
    00161         int m_xsb_loc,m_ysb_loc;    //coords of the current SB
    00162
    00163     };
    00164
    00165 } // namespace dirac
    00166
    00167 #endif

© 2004 British Broadcasting Corporation. Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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