Dirac - A Video Codec

Created by the British Broadcasting Corporation.


picture_decompress.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: picture_decompress.h,v 1.2 2008/04/29 08:51:52 tjdwave Exp $ $Name: Dirac_1_0_2 $
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),
00024 *                 Scott R Ladd,
00025 *                 Anuradha Suraparaju
00026 *                 Andrew Kennedy
00027 *
00028 * Alternatively, the contents of this file may be used under the terms of
00029 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
00030 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
00031 * the GPL or the LGPL are applicable instead of those above. If you wish to
00032 * allow use of your version of this file only under the terms of the either
00033 * the GPL or LGPL and not to allow others to use your version of this file
00034 * under the MPL, indicate your decision by deleting the provisions above
00035 * and replace them with the notice and other provisions required by the GPL
00036 * or LGPL. If you do not delete the provisions above, a recipient may use
00037 * your version of this file under the terms of any one of the MPL, the GPL
00038 * or the LGPL.
00039 * ***** END LICENSE BLOCK ***** */
00040 
00041 
00042 
00043 #ifndef _PICTURE_DECOMPRESS_H_
00044 #define _PICTURE_DECOMPRESS_H_
00045 
00046 #include <libdirac_common/picture_buffer.h>
00047 #include <libdirac_common/common.h>
00048 #include <libdirac_byteio/picture_byteio.h>
00049 #include <libdirac_byteio/transform_byteio.h>
00050 
00051 namespace dirac
00052 {
00053     class MvData;
00054     
00056 
00061     class PictureDecompressor{
00062     public:
00064 
00072         PictureDecompressor(DecoderParams& decp, ChromaFormat cf);
00073 
00075 
00078         ~PictureDecompressor();
00079 
00081 
00089         bool Decompress(ParseUnitByteIO& parseunit_byteio,
00090                         PictureBuffer& my_buffer);
00091 
00093         const PictureParams& GetPicParams() const{ return m_pparams; }
00094 
00095     private:
00097 
00101         PictureDecompressor(const PictureDecompressor& cpy);
00102 
00104 
00108         PictureDecompressor& operator=(const PictureDecompressor& rhs);
00109 
00111         void InitCoeffData( CoeffArray& coeff_data, const int xl, const int yl );
00112 
00114         void CleanReferencePictures( PictureBuffer& my_buffer );
00115 
00117         void CompDecompress(TransformByteIO *p_transform_byteio,
00118                             PictureBuffer& my_buffer,int pnum, CompSort cs);
00119 
00121         void DecompressMVData( std::auto_ptr<MvData>& mv_data, PictureByteIO& picture_byteio );
00122          
00123 
00125         void SetMVBlocks();
00126 
00128         void PushPicture(PictureBuffer &my_buffer);
00129 
00130         //Member variables    
00131 
00133         DecoderParams& m_decparams;
00134 
00136         ChromaFormat m_cformat;
00137 
00139         bool m_skipped;
00140 
00142         bool m_use_global;
00143 
00145         bool m_use_block_mv;
00146 
00148         PredMode m_global_pred_mode;
00149 
00151         PictureParams m_pparams;
00152     };
00153 
00154 } // namespace dirac
00155 
00156 #endif

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