# 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 1.8 2006/04/20 10:41:57 asuraparaju 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
    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         SeqParams & GetSeqParams() { return m_sparams; }
    00137
    00139
    00144         SourceParams & GetSourceParams() { return m_srcparams; }
    00145
    00146
    00147     private:
    00149
    00154         SequenceDecompressor(const SequenceDecompressor& cpy);
    00155
    00157
    00162         SequenceDecompressor& operator=(const SequenceDecompressor& rhs);
    00163
    00164
    00165         //Member variables
    00166
    00168         bool m_all_done;
    00170         DecoderParams m_decparams;
    00172         ParseParams m_parse_params;
    00174         SeqParams m_sparams;
    00176         SourceParams m_srcparams;
    00178         FrameBuffer* m_fbuffer;
    00180         int m_current_code_fnum;
    00182         int m_delay;
    00184         int m_last_frame_read;
    00186         int m_show_fnum;
    00188         FrameDecompressor *m_fdecoder;
    00190         int m_current_accessunit_fnum;
    00192         int m_highest_fnum;
    00193     };
    00194
    00195 } // namespace dirac
    00196
    00197 #endif

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