Dirac - A Video Codec

Created by the British Broadcasting Corporation.


picture_buffer.h
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3* $Id: picture_buffer.h,v 1.4 2008/06/19 10:07:03 tjdwave Exp $ $Name: Dirac_1_0_2 $
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38
39#ifndef _PICTURE_BUFFER_H_
40#define _PICTURE_BUFFER_H_
41
42#include <vector>
43#include <map>
46
47namespace dirac
48{
50
60 public:
63
65
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
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
119
121
125
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
ChromaFormat
Definition common_types.h:58
Definition of class SequenceHeaderByteIO.
Definition accessunit_byteio.h:52
Parameters for initialising picture class objects.
Definition common.h:533
A class for encapsulating all the data relating to a picture.
Definition picture.h:52
void PushPicture(const PictureParams &pp)
Put a new picture into the top of the buffer.
PictureBuffer(ChromaFormat cf, const int numL1, const int L1sep, const int xlen, const int ylen, const unsigned int luma_depth, const unsigned int chroma_depth, bool interlace, bool using_ac)
Constructor.
~PictureBuffer()
Destructor.
const Picture & GetPicture(const unsigned int pnum) const
Get picture with a given picture number (NOT with a given position in the buffer)
std::vector< Picture * > m_pic_data
the buffer storing all the values
Definition picture_buffer.h:189
const Picture & GetPicture(const unsigned int pnum, bool &is_present) const
Get picture with a given picture number, setting a flag to true if it's there.
PictureBuffer(ChromaFormat cf, const int xlen, const int ylen, const unsigned int luma_depth, const unsigned int chroma_depth, bool using_ac)
Constructor.
Picture & GetPicture(const unsigned int pnum)
Get picture with a given picture number (NOT with a given position in the buffer)
void SetRetiredPictureNum(const int show_pnum, const int current_coded_pnum)
Sets the reference picture number that will be cleaned.
Picture & GetPicture(const unsigned int pnum, bool &is_present)
Get picture with a given picture number, setting a flag to true if it's there.
bool IsPictureAvail(const unsigned int pnum) const
Return true if picture with the particular picture number is available else return false.
PictureBuffer()
Default Constructor.
std::map< unsigned int, unsigned int > m_pnum_map
the map from picture numbers to position in the buffer
Definition picture_buffer.h:192
PictureBuffer(const PictureBuffer &cpy)
Copy constructor.
PictureBuffer & operator=(const PictureBuffer &rhs)
Operator=.
void Remove(int pnum)
Delete picture.
void ClearSlot(const unsigned int pos)
Clear internal data slot number pos.
std::vector< int > Members() const
Returns a list of member pictures.
void CopyPicture(const Picture &picture)
Put a copy of a new picture into the buffer.

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