# 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 1.12 2007/03/19 16:19:00 asuraparaju Exp $ $Name: Dirac_0_7_0 $
    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 FrameBuffer;
    00047
    00049
    00069     class ModeDecider
    00070     {
    00071
    00072     public:
    00074
    00079         ModeDecider(const EncoderParams& encp );
    00080
    00082
    00085         ~ModeDecider();
    00086
    00088
    00094         void DoModeDecn( const FrameBuffer& my_buffer , int frame_num , MEData& me_data);
    00095
    00096     private:
    00097         ModeDecider( const ModeDecider& cpy );//private, body-less copy constructor: this class should not be copied
    00098         ModeDecider& operator=( const ModeDecider& rhs );//private, body-less assignment=: this class should not be assigned
    00099
    00100          //functions
    00101         void DoMBDecn();    //called by do_mode_decn for each MB
    00102
    00104         void DoLevelDecn( int level );
    00105
    00107         float DoUnitDecn( const int xpos , const int ypos , const int level );
    00108
    00110         void DoME( const int xpos , const int ypos , const int level );
    00111
    00112
    00114         float ModeCost( const int xindex , const int yindex );
    00115
    00117         ValueType GetDCPred( int xblock , int yblock );
    00118
    00120         float GetDCVar( const ValueType dc_val , const ValueType dc_pred);
    00121
    00122          // Member data
    00123         FrameSort fsort;
    00124
    00126         const EncoderParams& m_encparams;
    00127
    00129         float m_lambda;
    00130
    00132         OneDArray<float> m_level_factor;
    00133
    00134
    00136         OneDArray<float> m_mode_factor;
    00137
    00139         OneDArray< MEData* > m_me_data_set;
    00140
    00141         const PicArray* m_pic_data;
    00142         const PicArray* m_ref1_updata;
    00143         const PicArray* m_ref2_updata;
    00144         int num_refs;
    00145
    00146         IntraBlockDiff* m_intradiff;
    00147         BiBlockDiff* m_bicheckdiff;
    00148
    00149         //position variables, used in all the mode decisions
    00150         int m_xmb_loc,m_ymb_loc;    //coords of the current MB
    00151
    00152     };
    00153
    00154 } // namespace dirac
    00155
    00156 #endif

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