# 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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