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# comp_compress.h

    00001 /* ***** BEGIN LICENSE BLOCK *****
    00002 *
    00003 * $Id: comp_compress.h,v 1.2 2005/01/30 05:11:41 gabest Exp $ $Name:  $
    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 *
    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
    00039 #ifndef _COMP_COMPRESS_H_
    00040 #define _COMP_COMPRESS_H_
    00041
    00042 #include "libdirac_common/arrays.h"
    00043 #include "libdirac_common/wavelet_utils.h"
    00044 #include "libdirac_common/common.h"
    00045
    00046 namespace dirac
    00047 {
    00049
    00054     class CompCompressor
    00055     {
    00056     public:
    00058
    00064         CompCompressor( EncoderParams & encp, const FrameParams& fp);
    00065
    00067
    00071         void Compress(PicArray & pic_data);
    00072
    00073     private:
    00075         CompCompressor(const CompCompressor& cpy);
    00076
    00078         CompCompressor& operator=(const CompCompressor& rhs);
    00079
    00080         void GenQuantList();
    00081
    00082         void SelectQuantisers( PicArray& pic_data , SubbandList& bands ,
    00083                                OneDArray<unsigned int>& est_counts );
    00084
    00085         int SelectQuant(PicArray& pic_data,SubbandList& bands,int band_num);
    00086
    00087         ValueType PicAbsMax(const PicArray& pic_data,int xp, int yp ,int xl ,int yl) const;
    00088
    00089         ValueType PicAbsMax(const PicArray& pic_data) const;
    00090
    00091         void SetToVal(PicArray& pic_data,const Subband& node,ValueType val);
    00092
    00093         void AddSubAverage(PicArray& pic_data,int xl,int yl,AddOrSub dirn);
    00094
    00095         //member variables
    00096         EncoderParams& m_encparams;
    00097         const FrameParams& m_fparams;
    00098         const FrameSort& m_fsort;
    00099         const ChromaFormat& m_cformat;
    00100         CompSort m_csort;
    00101         OneDArray<int> m_qflist;
    00102         OneDArray<int> m_qfinvlist;
    00103         OneDArray<int> m_offset;
    00104         float m_lambda;
    00105
    00106     };
    00107
    00108 } // namespace dirac
    00109
    00110
    00111
    00112 #endif