/* ***** BEGIN LICENSE BLOCK ***** * * $Id: comp_decompress.h,v 1.9 2007/03/19 16:18:59 asuraparaju Exp $ $Name: Dirac_0_7_0 $ * * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for * the specific language governing rights and limitations under the License. * * The Original Code is BBC Research and Development code. * * The Initial Developer of the Original Code is the British Broadcasting * Corporation. * Portions created by the Initial Developer are Copyright (C) 2004. * All Rights Reserved. * * Contributor(s): Thomas Davies (Original Author), Scott R Ladd * Andrew Kennedy * * Alternatively, the contents of this file may be used under the terms of * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser * Public License Version 2.1 (the "LGPL"), in which case the provisions of * the GPL or the LGPL are applicable instead of those above. If you wish to * allow use of your version of this file only under the terms of the either * the GPL or LGPL and not to allow others to use your version of this file * under the MPL, indicate your decision by deleting the provisions above * and replace them with the notice and other provisions required by the GPL * or LGPL. If you do not delete the provisions above, a recipient may use * your version of this file under the terms of any one of the MPL, the GPL * or the LGPL. * ***** END LICENSE BLOCK ***** */ #ifndef _COMP_DECOMPRESS_H_ #define _COMP_DECOMPRESS_H_ #include #include #include #include namespace dirac { //! Compress a frame component /*! This class compresses one of the three components (Y, U, or V) of a frame according to a given set or parameters. CompCompressor is used by FrameCompressor.. */ class CompDecompressor { public: //! Constructor /*! Create and initialize a component decompressor with the given characteristics. \param decp decoding parameters \param fp frame parameters */ CompDecompressor( DecoderParams& decp, const FrameParams& fp); //! Decompress a frame component /*! Decompress a PicArray containing a frame component (Y, U, or V). \param p_component_byteio Bytestream of component data \param pic_data contains the component data to be decompressed */ void Decompress(ComponentByteIO *p_component_byteio, PicArray& pic_data); private: //! Copy constructor is private and body-less /*! Copy constructor is private and body-less. This class should not be copied. */ CompDecompressor(const CompDecompressor& cpy); //! Assignment = is private and body-less /*! Assignment = is private and body-less. This class should not be assigned. */ CompDecompressor& operator=(const CompDecompressor& rhs); //! Sets the data of a specific subband node to a given value /*! Sets the data of a specific subband node to a given value \param pic_data contains the component data \param node subband node \param val the value to set */ void SetToVal(PicArray& pic_data,const Subband& node,ValueType val); //! Set up the code block structures for each subband /*! Set up the code block structures for each subband \param bands the set of all the subbands */ void SetupCodeBlocks( SubbandList& bands ); //! Copy of the decompression parameters provided to the constructor DecoderParams& m_decparams; //! Reference to the frame parameters provided to the constructor const FrameParams& m_fparams; }; } // namespace dirac #endif