Dirac - A Video Codec

Created by the British Broadcasting Corporation.


frame_byteio.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: frame_byteio.h,v 1.1 2006/04/20 10:41:56 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): 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 frame_byteio_h
00043 #define frame_byteio_h
00044 
00045 
00046 //LOCAL INCLUDES
00047 #include <libdirac_byteio/parseunit_byteio.h>       // Parent class
00048 #include <libdirac_byteio/mvdata_byteio.h>          // Contains mvdata streams
00049 #include <libdirac_byteio/transform_byteio.h>       // Transform header
00050 
00051 // DIRAC includes
00052 #include <libdirac_common/common.h>                 // FrameType etc
00053 
00054 
00055 namespace dirac
00056 {
00060     class FrameByteIO : public ParseUnitByteIO
00061     {
00062     public:
00063 
00070         FrameByteIO(FrameParams& frame_params,
00071                     int frame_num,
00072                     int au_fnum);
00073 
00074 
00081         FrameByteIO(FrameParams& frame_params,
00082                     const ParseUnitByteIO& parseunit_byteio,
00083                     int au_fnum);
00084 
00088         virtual ~FrameByteIO();
00089 
00094         void CollateByteStats(DiracByteStats& dirac_byte_stats);
00095 
00099         bool Input();
00100 
00104         void Output();
00105 
00106         
00107 
00108         const std::string GetBytes();
00109 
00110         int GetSize() const;
00111 
00115         ParseUnitType GetType() const { return PU_FRAME;}
00116 
00117         /***
00118         * Sets the MVDataIO
00119         */
00120         void SetMvData(MvDataByteIO *mv_data) {m_mv_data = mv_data; }
00121 
00122         /***
00123         * Sets the TransformByteIo
00124         */
00125         void SetTransformData(TransformByteIO *transform_data) {m_transform_data = transform_data; }
00126 
00127   protected:
00128         
00129 
00130    private:
00131       
00136         unsigned char CalcParseCode() const;
00137 
00141         void InputReferenceFrames();
00142 
00146         void SetFrameType();
00147 
00151         void SetReferenceType();
00152 
00156         FrameParams&        m_frame_params;
00157 
00161         int     m_frame_num;
00162 
00166         MvDataByteIO * m_mv_data;
00167        
00171         TransformByteIO * m_transform_data;
00172        
00173    };
00174 
00175 } // namespace dirac
00176 
00177 #endif

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