# Dirac - A Video Codec

Created by the British Broadcasting Corporation.

picture_buffer.h
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1 /* ***** BEGIN LICENSE BLOCK *****
2 *
3 * $Id: picture_buffer.h,v 1.4 2008/06/19 10:07:03 tjdwave Exp $ $Name: Dirac_1_0_2 $
4 *
5 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6 *
7 * The contents of this file are subject to the Mozilla Public License
8 * Version 1.1 (the "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 * http://www.mozilla.org/MPL/
11 *
12 * Software distributed under the License is distributed on an "AS IS" basis,
13 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
14 * the specific language governing rights and limitations under the License.
15 *
16 * The Original Code is BBC Research and Development code.
17 *
18 * The Initial Developer of the Original Code is the British Broadcasting
19 * Corporation.
20 * Portions created by the Initial Developer are Copyright (C) 2004.
21 * All Rights Reserved.
22 *
23 * Contributor(s): Thomas Davies (Original Author),
24 * Anuradha Suraparaju
25 *
26 * Alternatively, the contents of this file may be used under the terms of
27 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
28 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
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37 * ***** END LICENSE BLOCK ***** */
38
39 #ifndef _PICTURE_BUFFER_H_
40 #define _PICTURE_BUFFER_H_
41
42 #include <vector>
43 #include <map>
44 #include <libdirac_common/picture.h>
45 #include <libdirac_common/common.h>
46
47 namespace dirac
48 {
50
59 class PictureBuffer{
60 public:
62 PictureBuffer();
63
65
78 PictureBuffer(ChromaFormat cf,
79 const int xlen,
80 const int ylen,
81 const unsigned int luma_depth,
82 const unsigned int chroma_depth,
83 bool using_ac);
84
86
103 PictureBuffer(ChromaFormat cf,
104 const int numL1,
105 const int L1sep,
106 const int xlen,
107 const int ylen,
108 const unsigned int luma_depth,
109 const unsigned int chroma_depth,
110 bool interlace,
111 bool using_ac);
112
114
118 PictureBuffer(const PictureBuffer& cpy);
119
121
124 PictureBuffer& operator=(const PictureBuffer& rhs);
125
127 ~PictureBuffer();
128
130 Picture& GetPicture(const unsigned int pnum );
131
133 const Picture& GetPicture(const unsigned int pnum) const;
134
136 Picture& GetPicture(const unsigned int pnum, bool& is_present);
137
139 const Picture& GetPicture(const unsigned int pnum, bool& is_present) const;
140
142 bool IsPictureAvail(const unsigned int pnum) const;
143
145 std::vector<int> Members() const;
146
148
153 void PushPicture(const PictureParams& pp);
154
156
159 void CopyPicture( const Picture& picture );
160
162
169 void SetRetiredPictureNum(const int show_pnum, const int current_coded_pnum);
170
172
176 void Remove(int pnum);
177
178 private:
180
183 void ClearSlot(const unsigned int pos);
184
185 // //! the count of the number of reference pictures in the buffer
186 // int m_ref_count;
187
189 std::vector<Picture*> m_pic_data;
190
192 std::map<unsigned int,unsigned int> m_pnum_map;
193
194 };
195
196 } // namespace dirac
197
198 #endif

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