Dirac - A Video Codec

Created by the British Broadcasting Corporation.


picture_buffer.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: picture_buffer.h,v 1.4 2008/06/19 10:07:03 tjdwave 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): Thomas Davies (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 
00039 #ifndef _PICTURE_BUFFER_H_
00040 #define _PICTURE_BUFFER_H_
00041 
00042 #include <vector>
00043 #include <map>
00044 #include <libdirac_common/picture.h>
00045 #include <libdirac_common/common.h>
00046 
00047 namespace dirac
00048 {
00050 
00059     class PictureBuffer{
00060     public:
00062         PictureBuffer();
00063 
00065 
00078         PictureBuffer(ChromaFormat cf,
00079                     const int xlen,
00080                     const int ylen,
00081                     const unsigned int luma_depth,
00082                     const unsigned int chroma_depth,
00083                     bool using_ac);
00084 
00086 
00103         PictureBuffer(ChromaFormat cf,
00104                     const int numL1,
00105                     const int L1sep,
00106                     const int xlen,
00107                     const int ylen,
00108                     const unsigned int luma_depth,
00109                     const unsigned int chroma_depth,
00110                     bool interlace,
00111                     bool using_ac);
00112 
00114 
00118         PictureBuffer(const PictureBuffer& cpy);
00119 
00121 
00124         PictureBuffer& operator=(const PictureBuffer& rhs);
00125 
00127         ~PictureBuffer();
00128 
00130         Picture& GetPicture(const unsigned int pnum );
00131 
00133         const Picture& GetPicture(const unsigned int pnum) const;
00134 
00136         Picture& GetPicture(const unsigned int pnum, bool& is_present);
00137 
00139         const Picture& GetPicture(const unsigned int pnum, bool& is_present) const;
00140 
00142         bool IsPictureAvail(const unsigned int pnum) const;
00143 
00145         std::vector<int> Members() const;
00146 
00148 
00153         void PushPicture(const PictureParams& pp);
00154 
00156 
00159         void CopyPicture( const Picture& picture );
00160 
00162 
00169         void SetRetiredPictureNum(const int show_pnum, const int current_coded_pnum);
00170 
00172 
00176         void Remove(int pnum);
00177 
00178     private:
00180 
00183         void ClearSlot(const unsigned int pos);
00184 
00185 //        //! the count of the number of reference pictures in the buffer
00186 //        int m_ref_count;
00187 
00189         std::vector<Picture*> m_pic_data;
00190 
00192         std::map<unsigned int,unsigned int> m_pnum_map;
00193 
00194     };
00195 
00196 } // namespace dirac
00197 
00198 #endif

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