Dirac - A Video Codec

Created by the British Broadcasting Corporation.


dirac_byte_stream.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: dirac_byte_stream.h,v 1.1 2006/04/20 10:41:56 asuraparaju Exp $ $Name: Dirac_0_8_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): Andrew Kennedy
00024 *
00025 * Alternatively, the contents of this file may be used under the terms of
00026 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
00027 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
00028 * the GPL or the LGPL are applicable instead of those above. If you wish to
00029 * allow use of your version of this file only under the terms of the either
00030 * the GPL or LGPL and not to allow others to use your version of this file
00031 * under the MPL, indicate your decision by deleting the provisions above
00032 * and replace them with the notice and other provisions required by the GPL
00033 * or LGPL. If you do not delete the provisions above, a recipient may use
00034 * your version of this file under the terms of any one of the MPL, the GPL
00035 * or the LGPL.
00036 * ***** END LICENSE BLOCK ***** */
00037 
00041 #ifndef dirac_byte_stream_h
00042 #define dirac_byte_stream_h
00043 
00044 //SYSTEM INCLUDES
00045 #include <queue>
00046 
00047 //LOCAL INCLUDES
00048 #include "byteio.h"             // Parent class
00049 #include "accessunit_byteio.h"  // manages parse-unit types
00050 #include "frame_byteio.h"       // manages parse-unit types
00051 
00052 namespace dirac
00053 {
00054 
00059     class DiracByteStream : public ByteIO
00060     {
00061         public:
00062 
00066         DiracByteStream();
00067 
00071         ~DiracByteStream();
00072        
00078         void AddBytes(char* start, int count);
00079 
00084         DiracByteStats GetLastUnitStats();
00085 
00089         ParseUnitByteIO* GetNextParseUnit();
00090 
00091 
00095         DiracByteStats GetSequenceStats() const;
00096 
00102         void AddAccessUnit(AccessUnitByteIO *p_accessunit_byteio);
00103 
00108         void AddFrame(FrameByteIO *p_frame_byteio);
00109 
00113         void Clear();
00114 
00119         DiracByteStats EndSequence();
00120 
00124         const std::string GetBytes();
00125 
00129         bool IsUnitAvailable() const;
00130 
00131         private:
00132        
00136         typedef std::queue< std::pair <ParseUnitType, ParseUnitByteIO*> > ParseUnitList;
00137         ParseUnitList       m_parse_unit_list;
00138 
00143         ParseUnitByteIO* mp_prev_parse_unit;
00144 
00150         ParseUnitByteIO* mp_next_parse_unit;
00151 
00155         DiracByteStats      m_sequence_stats;
00156         
00157     };
00158 
00159 } // namespace dirac
00160 
00161 #endif

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