# 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 1.4 2008/08/14 00:51:08 asuraparaju 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): Andrew Kennedy (Original Author)
    00024 *                 Anuradha Suraparaju
    00025 *
    00026 * Alternatively, the contents of this file may be used under the terms of
    00027 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
    00028 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
    00029 * the GPL or the LGPL are applicable instead of those above. If you wish to
    00030 * allow use of your version of this file only under the terms of the either
    00031 * the GPL or LGPL and not to allow others to use your version of this file
    00032 * under the MPL, indicate your decision by deleting the provisions above
    00033 * and replace them with the notice and other provisions required by the GPL
    00034 * or LGPL. If you do not delete the provisions above, a recipient may use
    00035 * your version of this file under the terms of any one of the MPL, the GPL
    00036 * or the LGPL.
    00037 * ***** END LICENSE BLOCK ***** */
    00038
    00042 #ifndef dirac_byte_stream_h
    00043 #define dirac_byte_stream_h
    00044
    00045 //SYSTEM INCLUDES
    00046 #include <queue>
    00047
    00048 //LOCAL INCLUDES
    00049 #include "byteio.h"             // Parent class
    00050 #include "accessunit_byteio.h"  // manages parse-unit types
    00051 #include "picture_byteio.h"       // manages parse-unit types
    00052
    00053 namespace dirac
    00054 {
    00055
    00060     class DiracByteStream : public ByteIO
    00061     {
    00062         public:
    00063
    00067         DiracByteStream();
    00068
    00072         ~DiracByteStream();
    00073
    00079         void AddBytes(char* start, int count);
    00080
    00085         DiracByteStats GetLastUnitStats();
    00086
    00090         ParseUnitByteIO* GetNextParseUnit();
    00091
    00092
    00096         DiracByteStats GetSequenceStats() const;
    00097
    00102         void AddSequenceHeader(SequenceHeaderByteIO *p_seqheader_byteio);
    00103
    00108         void AddPicture(PictureByteIO *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
    00133         void Reset(ParseUnitByteIO* p_curr_unit, int pos);
    00134
    00135         private:
    00136
    00140         typedef std::queue< std::pair <ParseUnitType, ParseUnitByteIO*> > ParseUnitList;
    00141         ParseUnitList       m_parse_unit_list;
    00142
    00147         ParseUnitByteIO* mp_prev_parse_unit;
    00148
    00152         DiracByteStats      m_sequence_stats;
    00153
    00154     };
    00155
    00156 } // namespace dirac
    00157
    00158 #endif

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