# Dirac - A Video Codec

Created by the British Broadcasting Corporation.

seq_decompress.h
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1 /* ***** BEGIN LICENSE BLOCK *****
2 *
3 * $Id: seq_decompress.h,v 1.13 2008/05/02 06:05:04 asuraparaju Exp $ $Name: Dirac_1_0_2 $
4 *
5 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6 *
7 * The contents of this file are subject to the Mozilla Public License
8 * Version 1.1 (the "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
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12 * Software distributed under the License is distributed on an "AS IS" basis,
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15 *
16 * The Original Code is BBC Research and Development code.
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18 * The Initial Developer of the Original Code is the British Broadcasting
19 * Corporation.
20 * Portions created by the Initial Developer are Copyright (C) 2004.
21 * All Rights Reserved.
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23 * Contributor(s): Thomas Davies (Original Author),
24 * Scott R Ladd,
25 * Anuradha Suraparaju
26 * Andrew Kennedy
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40
41
42 #ifndef _SEQ_DECOMPRESS_H_
43 #define _SEQ_DECOMPRESS_H_
44
46 //---------------------------------------//
47 //Class to manage decompressing sequences//
48 //---------------------------------------//
50
51 #include "libdirac_common/common.h"
52 #include "libdirac_byteio/parseunit_byteio.h"
53 #include <iostream>
54
55 namespace dirac
56 {
57 class PictureBuffer;
58 class Picture;
59 class PictureDecompressor;
60
62
65 class SequenceDecompressor{
66 public:
67
69
75 SequenceDecompressor(ParseUnitByteIO& parseunit, bool verbosity);
76
78
81 ~SequenceDecompressor();
82
84
87 void NewAccessUnit(ParseUnitByteIO& parseunit_byteio);
88
89
91
105 const Picture* DecompressNextPicture(ParseUnitByteIO* p_parseunit_byteio);
106
108 const Picture* GetNextPicture();
109
111 const PictureParams* GetNextPictureParams() const;
113
118 bool Finished();
120
125 ParseParams & GetParseParams() { return m_parse_params; }
126
127
129
134 SourceParams & GetSourceParams() { return m_srcparams; }
135
136
138
143 DecoderParams & GetDecoderParams() { return m_decparams; }
144 private:
146
151 SequenceDecompressor(const SequenceDecompressor& cpy);
152
154
159 SequenceDecompressor& operator=(const SequenceDecompressor& rhs);
160
161
162 //Member variables
163
165 bool m_all_done;
167 DecoderParams m_decparams;
169 ParseParams m_parse_params;
171 SourceParams m_srcparams;
173 PictureBuffer* m_pbuffer;
175 int m_current_code_pnum;
177 int m_delay;
179 int m_last_picture_read;
181 int m_show_pnum;
183 PictureDecompressor *m_pdecoder;
185 int m_highest_pnum;
186 };
187
188 } // namespace dirac
189
190 #endif

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