1 /* ***** BEGIN LICENSE BLOCK ***** 2 * 3 * $Id: comp_compress.h,v 1.19 2008/05/07 05:47:00 asuraparaju Exp $ $Name: Dirac_1_0_2 $ 4 * 5 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 6 * 7 * The contents of this file are subject to the Mozilla Public License 8 * Version 1.1 (the "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * http://www.mozilla.org/MPL/ 11 * 12 * Software distributed under the License is distributed on an "AS IS" basis, 13 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for 14 * the specific language governing rights and limitations under the License. 15 * 16 * The Original Code is BBC Research and Development code. 17 * 18 * The Initial Developer of the Original Code is the British Broadcasting 19 * Corporation. 20 * Portions created by the Initial Developer are Copyright (C) 2004. 21 * All Rights Reserved. 22 * 23 * Contributor(s): Thomas Davies (Original Author), Scott R Ladd 24 * Andrew Kennedy 25 * 26 * Alternatively, the contents of this file may be used under the terms of 27 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser 28 * Public License Version 2.1 (the "LGPL"), in which case the provisions of 29 * the GPL or the LGPL are applicable instead of those above. If you wish to 30 * allow use of your version of this file only under the terms of the either 31 * the GPL or LGPL and not to allow others to use your version of this file 32 * under the MPL, indicate your decision by deleting the provisions above 33 * and replace them with the notice and other provisions required by the GPL 34 * or LGPL. If you do not delete the provisions above, a recipient may use 35 * your version of this file under the terms of any one of the MPL, the GPL 36 * or the LGPL. 37 * ***** END LICENSE BLOCK ***** */ 38 39 40 #ifndef _COMP_COMPRESS_H_ 41 #define _COMP_COMPRESS_H_ 42 43 #include <libdirac_common/arrays.h> 44 #include <libdirac_common/wavelet_utils.h> 45 #include <libdirac_common/common.h> 46 #include <libdirac_byteio/component_byteio.h> 47 48 namespace dirac 49 { 50 class MEData; 51 52 //! Compress a picture component 53 /*! 54 This class compresses one of the three components (Y, U, or V) of a 55 picture according to a given set or parameters. CompCompressor is used 56 by PictureCompressor. 57 */ 58 class CompCompressor 59 { 60 public: 61 //! Constructor 62 /*! 63 Create and initialize a component compressor with the given 64 characteristics. 65 \param encp encoding parameters 66 \param fp picture parameters 67 */ 68 CompCompressor( EncoderParams & encp, const PictureParams& fp); 69 70 //! Compress a picture component 71 /*! 72 Compress a PicArray containing a picture component (Y, U, or V). 73 \param coeff_data the component data to be compressed 74 \param bands Subbands list 75 \param csort Chroma format 76 \param estimated_bits the list of estimated number of bits in each subband 77 \return Picture-component in Dirac-bytestream format 78 */ 79 ComponentByteIO* Compress( CoeffArray& coeff_data , 80 SubbandList& bands, 81 CompSort csort, 82 const OneDArray<unsigned int>& estimated_bits); 83 84 private: 85 //! Copy constructor is private and body-less. This class should not be copied. 86 CompCompressor(const CompCompressor& cpy); 87 88 //! Assignment = is private and body-less. This class should not be assigned. 89 CompCompressor& operator=(const CompCompressor& rhs); 90 91 //! Set a subband to a constant value 92 void SetToVal(CoeffArray& coeff_data,const Subband& node,ValueType val); 93 94 95 private: 96 97 // member variables 98 EncoderParams& m_encparams; 99 100 const PictureParams& m_pparams; 101 102 const PictureSort& m_psort; 103 104 const ChromaFormat& m_cformat; 105 106 float m_lambda; 107 108 }; 109 110 } // namespace dirac 111 112 113 114 #endif 115