# 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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