Dirac - A Video Codec

Created by the British Broadcasting Corporation.


accessunit_byteio.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: accessunit_byteio.h,v 1.7 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 accessunit_byteio_h
00043 #define accessunit_byteio_h
00044 
00045 //LOCAL INCLUDES
00046 #include <libdirac_byteio/parseunit_byteio.h>             // Parent class
00047 #include <libdirac_byteio/parseparams_byteio.h>           // ParseParamsByteIO class
00048 #include <libdirac_byteio/displayparams_byteio.h>         // SourceParamsByteIO class
00049 #include <libdirac_byteio/codingparams_byteio.h>         // CodingParamsByteIO class
00050 
00051 namespace dirac
00052 {
00056     class SequenceHeaderByteIO : public ParseUnitByteIO
00057     {
00058     public:
00059 
00065         SequenceHeaderByteIO( SourceParams& src_params,
00066                           EncoderParams& enc_params);
00067 
00075         SequenceHeaderByteIO(const ParseUnitByteIO& parseunit_byteio,
00076                          ParseParams& parse_params,
00077                          SourceParams& src_params,
00078                          CodecParams& codec_params);
00079 
00083         ~SequenceHeaderByteIO();
00084 
00088         bool Input();
00089 
00093         void Output();
00094      
00095         /* 
00096         * Gets size of access-unit (in bytes)
00097         */
00098         int GetSize() const;
00099 
00103         ParseUnitType GetType() const { return PU_SEQ_HEADER;}
00104 
00105     private:
00106 
00111         unsigned char CalcParseCode() const;
00112 
00116         void InputSourceParams();
00117         
00121         void InputParseParams();
00122 
00126         void InputCodingParams();
00127 
00131         void OutputSourceParams();
00132         
00136         void OutputParseParams();
00137 
00141         void OutputCodingParams();
00142 
00146         ParseParams m_parse_params;
00147    
00148     
00152         ParseParamsByteIO m_parseparams_byteio;
00153         
00157         SourceParams m_default_src_params;
00158    
00162         SourceParams& m_src_params;
00163 
00167         SourceParamsByteIO m_sourceparams_byteio;
00168         
00172         CodecParams& m_codec_params;
00173         
00177         CodingParamsByteIO m_codingparams_byteio;
00178    };
00179 
00180 } // namespace dirac
00181 
00182 #endif

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