Dirac - A Video Codec

Created by the British Broadcasting Corporation.


comp_compress.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: comp_compress.h,v 1.13 2007/05/01 14:51:14 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), Scott R Ladd
00024 *                 Andrew Kennedy
00025 *
00026 * Alternatively, the contents of this file may be used under the terms of
00027 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
00028 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
00029 * the GPL or the LGPL are applicable instead of those above. If you wish to
00030 * allow use of your version of this file only under the terms of the either
00031 * the GPL or LGPL and not to allow others to use your version of this file
00032 * under the MPL, indicate your decision by deleting the provisions above
00033 * and replace them with the notice and other provisions required by the GPL
00034 * or LGPL. If you do not delete the provisions above, a recipient may use
00035 * your version of this file under the terms of any one of the MPL, the GPL
00036 * or the LGPL.
00037 * ***** END LICENSE BLOCK ***** */
00038 
00039 
00040 #ifndef _COMP_COMPRESS_H_
00041 #define _COMP_COMPRESS_H_
00042 
00043 #include <libdirac_common/arrays.h>
00044 #include <libdirac_common/wavelet_utils.h>
00045 #include <libdirac_common/common.h>
00046 #include <libdirac_byteio/component_byteio.h>
00047 
00048 namespace dirac
00049 {
00050     class MEData;
00051           
00053 
00058     class CompCompressor
00059     {
00060     public:
00062 
00068         CompCompressor( EncoderParams & encp, const FrameParams& fp);
00069 
00071 
00079         ComponentByteIO* Compress( PicArray & pic_data ,
00080                                    const bool is_a_cut ,
00081                                    const double intra_ratio=100.0 ,
00082                                    MEData *me_data=0 );
00083 
00084     private:
00086         CompCompressor(const CompCompressor& cpy);
00087 
00089         CompCompressor& operator=(const CompCompressor& rhs);
00090 
00091 
00093         void SetCompLambda( const double intra_ratio, const bool is_a_cut );
00094 
00095 
00096         void SelectQuantisers( PicArray& pic_data , 
00097                                SubbandList& bands ,
00098                                OneDArray<unsigned int>& est_counts,
00099                                const CodeBlockMode cb_mode );
00100 
00101         int SelectMultiQuants( PicArray& pic_data , 
00102                                SubbandList& bands , 
00103                                const int band_num );
00104 
00105         void SetupCodeBlocks( SubbandList& bands );
00106 
00107         void SetToVal(PicArray& pic_data,const Subband& node,ValueType val);
00108 
00109         void AddSubAverage(PicArray& pic_data,int xl,int yl,AddOrSub dirn);
00110 
00111     private:
00112 
00113         // member variables
00114         EncoderParams& m_encparams;
00115 
00116         const FrameParams& m_fparams;
00117 
00118         const FrameSort& m_fsort;    
00119 
00120         const ChromaFormat& m_cformat;
00121 
00122         CompSort m_csort;
00123 
00124         float m_lambda;
00125         
00126         MEData* m_me_data;
00127     };
00128 
00129 } // namespace dirac
00130 
00131 
00132 
00133 #endif

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