Created by the British Broadcasting Corporation.
00001 /* ***** BEGIN LICENSE BLOCK ***** 00002 * 00003 * $Id: picture_compress.h,v 1.7 2008/08/14 02:30:50 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 * Scott R Ladd, 00025 * Anuradha Suraparaju 00026 * Andrew Kennedy 00027 * 00028 * Alternatively, the contents of this file may be used under the terms of 00029 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser 00030 * Public License Version 2.1 (the "LGPL"), in which case the provisions of 00031 * the GPL or the LGPL are applicable instead of those above. If you wish to 00032 * allow use of your version of this file only under the terms of the either 00033 * the GPL or LGPL and not to allow others to use your version of this file 00034 * under the MPL, indicate your decision by deleting the provisions above 00035 * and replace them with the notice and other provisions required by the GPL 00036 * or LGPL. If you do not delete the provisions above, a recipient may use 00037 * your version of this file under the terms of any one of the MPL, the GPL 00038 * or the LGPL. 00039 * ***** END LICENSE BLOCK ***** */ 00040 00041 00042 #ifndef _PICTURE_COMPRESS_H_ 00043 #define _PICTURE_COMPRESS_H_ 00044 00045 #include <libdirac_encoder/enc_queue.h> 00046 #include <libdirac_common/common.h> 00047 #include <libdirac_common/motion.h> 00048 #include <libdirac_byteio/picture_byteio.h> 00049 00050 namespace dirac 00051 { 00052 00053 class MvData; 00054 00056 00061 class PictureCompressor 00062 { 00063 public: 00065 00071 PictureCompressor( EncoderParams& encp ); 00072 00074 ~PictureCompressor( ); 00075 00077 void PixelME( EncQueue& my_buffer , int pnum ); 00078 00080 void CalcComplexity( EncQueue& my_buffer, int pnum , const OLBParams& olbparams ); 00081 void CalcComplexity2( EncQueue& my_buffer, int pnum ); 00082 00084 void NormaliseComplexity( EncQueue& my_buffer, int pnum ); 00085 00087 void SubPixelME( EncQueue& my_buffer , int pnum ); 00088 00090 void ModeDecisionME( EncQueue& my_buffer, int pnum ); 00091 00093 void IntraModeAnalyse( EncQueue& my_buffer, int pnum ); 00094 00096 void MotionCompensate( EncQueue& my_buffer, int pnum, AddOrSub dirn ); 00097 00099 void Prefilter( EncQueue& my_buffer, int pnum ); 00100 00102 void DoDWT( EncQueue& my_buffer , int pnum, Direction dirn ); 00103 00105 00111 void CodeResidue( EncQueue& my_pbuffer , int pnum , PictureByteIO* pic_byteio); 00112 00114 void CodeMVData( EncQueue& my_buffer, int pnum, PictureByteIO* pic_byteio); 00115 00117 bool IsSkipped(){ return m_skipped; } 00118 00120 bool IsMEDataAvail() const { return m_medata_avail; } 00121 00123 const MEData* GetMEData() const; 00124 00125 private: 00127 00131 PictureCompressor( const PictureCompressor& cpy ); 00132 00134 00138 PictureCompressor& operator=(const PictureCompressor& rhs); 00139 00141 void InitCoeffData( CoeffArray& coeff_data, const int xl, const int yl ); 00142 00144 float GetCompLambda( const EncPicture& my_picture, 00145 const CompSort csort ); 00146 00147 void SelectQuantisers( CoeffArray& coeff_data , 00148 SubbandList& bands , 00149 const float lambda, 00150 OneDArray<unsigned int>& est_counts, 00151 const CodeBlockMode cb_mode, 00152 const PictureParams& pp, 00153 const CompSort csort ); 00154 00155 int SelectMultiQuants( CoeffArray& coeff_data , 00156 SubbandList& bands , 00157 const int band_num, 00158 const float lambda, 00159 const PictureParams& pp, 00160 const CompSort csort ); 00161 00162 void SetupCodeBlocks( SubbandList& bands ); 00163 00164 00165 void AddSubAverage(CoeffArray& coeff_data,int xl,int yl,AddOrSub dirn); 00166 00167 private: 00168 00169 //member variables 00170 // a local copy of the encoder params 00171 EncoderParams& m_encparams; 00172 00173 // True if the picture has been skipped, false otherwise 00174 bool m_skipped; 00175 00176 // True if we use global motion vectors, false otherwise 00177 bool m_use_global; 00178 00179 // True if we use block motion vectors, false otherwise 00180 bool m_use_block_mv; 00181 00182 // Prediction mode to use if we only have global motion vectors 00183 PredMode m_global_pred_mode; 00184 00185 // A pointer to the current picture motion vector data 00186 MEData* m_me_data; 00187 00188 // True if motion estimation data is available 00189 bool m_medata_avail; 00190 00191 // True if we have detected a cut 00192 bool m_is_a_cut; 00193 00194 // The original MV precision type 00195 MVPrecisionType m_orig_prec; 00196 00197 }; 00198 00199 } // namespace dirac 00200 00201 #endif
© 2004 British Broadcasting Corporation.
Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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