Dirac - A Video Codec

Created by the British Broadcasting Corporation.


seq_decompress.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: seq_decompress.h,v 1.10 2007/09/03 11:31:43 asuraparaju Exp $ $Name: Dirac_0_9_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
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 #ifndef _SEQ_DECOMPRESS_H_
00043 #define _SEQ_DECOMPRESS_H_
00044 
00046 //---------------------------------------//
00047 //Class to manage decompressing sequences//
00048 //---------------------------------------//
00050 
00051 #include "libdirac_common/common.h"
00052 #include "libdirac_byteio/parseunit_byteio.h"
00053 #include <iostream>
00054 
00055 namespace dirac
00056 {
00057     class FrameBuffer;
00058     class Frame;
00059     class FrameDecompressor;
00060 
00062 
00065     class SequenceDecompressor{
00066     public:
00067 
00069 
00075         SequenceDecompressor(ParseUnitByteIO& parseunit, bool verbosity);
00076 
00078 
00081         ~SequenceDecompressor();
00082 
00084 
00087         void NewAccessUnit(ParseUnitByteIO& parseunit_byteio);
00088 
00089 
00091 
00106         Frame& DecompressNextFrame(ParseUnitByteIO* p_parseunit_byteio,
00107                                    bool skip = false);
00108 
00110         Frame& GetNextFrame();
00111 
00113         const FrameParams& GetNextFrameParams() const;
00115 
00120         bool Finished(); 
00122 
00127         ParseParams & GetParseParams() { return m_parse_params; }
00128 
00129 
00131 
00136         SourceParams & GetSourceParams() { return m_srcparams; }
00137 
00138 
00140 
00145         DecoderParams & GetDecoderParams() { return m_decparams; }
00146     private:
00148 
00153         SequenceDecompressor(const SequenceDecompressor& cpy);
00154 
00156 
00161         SequenceDecompressor& operator=(const SequenceDecompressor& rhs);
00162 
00163 
00164         //Member variables
00165 
00167         bool m_all_done;
00169         DecoderParams m_decparams;
00171         ParseParams m_parse_params;
00173         SourceParams m_srcparams;
00175         FrameBuffer* m_fbuffer;   
00177         int m_current_code_fnum;        
00179         int m_delay;                    
00181         int m_last_frame_read;
00183         int m_show_fnum;
00185         FrameDecompressor *m_fdecoder;
00187         int m_highest_fnum;
00188     };
00189 
00190 } // namespace dirac
00191 
00192 #endif

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