Dirac - A Video Codec

Created by the British Broadcasting Corporation.


frame_decompress.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: frame_decompress.h,v 1.15 2007/04/11 08:08:49 tjdwave 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),
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
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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 _FRAME_DECOMPRESS_H_
00044 #define _FRAME_DECOMPRESS_H_
00045 
00046 #include <libdirac_common/frame_buffer.h>
00047 #include <libdirac_common/common.h>
00048 #include <libdirac_byteio/frame_byteio.h>
00049 #include <libdirac_byteio/transform_byteio.h>
00050 
00051 namespace dirac
00052 {
00053     class MvData;
00054     
00056 
00061     class FrameDecompressor{
00062     public:
00064 
00073         FrameDecompressor(DecoderParams& decp, ChromaFormat cf, unsigned int vd);
00074 
00076 
00079         ~FrameDecompressor();
00080 
00082 
00091         bool Decompress(ParseUnitByteIO& parseunit_byteio,
00092                         FrameBuffer& my_buffer,
00093                         int au_fnum);
00094 
00096         const FrameParams& GetFrameParams() const{ return m_fparams; }
00097 
00098     private:
00100 
00104         FrameDecompressor(const FrameDecompressor& cpy);
00105 
00107 
00111         FrameDecompressor& operator=(const FrameDecompressor& rhs);
00112 
00114         void CleanReferenceFrames( FrameBuffer& my_buffer );
00115 
00117         void CompDecompress(TransformByteIO *p_transform_byteio,
00118                             FrameBuffer& my_buffer,int fnum, CompSort cs);
00119 
00121         void DecompressMVData( std::auto_ptr<MvData>& mv_data, FrameByteIO& frame_byteio );
00122          
00123 
00125         void SetMVBlocks();
00126 
00128         void PushFrame(FrameBuffer &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         FrameParams m_fparams;
00152         
00154         unsigned int m_video_depth;
00155 
00156     };
00157 
00158 } // namespace dirac
00159 
00160 #endif

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