# 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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