# Dirac - A Video Codec

Created by the British Broadcasting Corporation.

upconvert.h
Go to the documentation of this file.
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3* $Id: upconvert.h,v 1.13 2007/11/22 15:19:28 tjdwave Exp $ $Name: Dirac_1_0_2 $
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37
38#ifndef _UPCONVERT_H_
39#define _UPCONVERT_H_
40
41#include <libdirac_common/common.h>
42
43 namespace dirac
44{
45 //Optimised upconversion class - no array resizes.
46 //Uses integer math - no floats!
47 //
48
50
53 class UpConverter
54 {
55
56 public:
57
59 UpConverter(int min_val, int max_val, int orig_xlen, int orig_ylen);
60
62 ~UpConverter() {};
63
65
70 void DoUpConverter(const PicArray& pic_data, PicArray& up_data);
71
72 private:
74 UpConverter(const UpConverter& cpy);
75
77 UpConverter& operator=(const UpConverter& rhs);
78
80 void RowLoop(PicArray& up_data, const int row_num,
81 const int filter_size, const int filter_shift, const short taps[4] );
82
83 private:
84 //Variable to keep the loops in check
85 int m_width_old, m_height_old;
86 int m_width_new, m_height_new;
87
88
89 const int m_min_val;
90 const int m_max_val;
91
92 const int m_orig_xl;
93 const int m_orig_yl;
94 };
95
96} // namespace dirac
97
98#endif
common.h
dirac
Definition of class SequenceHeaderByteIO.
Definition: accessunit_byteio.h:52
dirac::PicArray
A class for picture component data.
Definition: common.h:719
dirac::UpConverter
Upconversion class.
Definition: upconvert.h:54
dirac::UpConverter::operator=
UpConverter & operator=(const UpConverter &rhs)
Private body-less assignment: class should not be assigned.
dirac::UpConverter::m_orig_xl
const int m_orig_xl
Definition: upconvert.h:92
dirac::UpConverter::m_min_val
const int m_min_val
Definition: upconvert.h:89
dirac::UpConverter::~UpConverter
~UpConverter()
Destructor.
Definition: upconvert.h:62
dirac::UpConverter::m_width_new
int m_width_new
Definition: upconvert.h:86
dirac::UpConverter::DoUpConverter
void DoUpConverter(const PicArray &pic_data, PicArray &up_data)
Upconvert the picture data.
dirac::UpConverter::m_height_new
int m_height_new
Definition: upconvert.h:86
dirac::UpConverter::UpConverter
UpConverter(const UpConverter &cpy)
Private body-less copy constructor: class should not be copied.
dirac::UpConverter::m_height_old
int m_height_old
Definition: upconvert.h:85
dirac::UpConverter::RowLoop
void RowLoop(PicArray &up_data, const int row_num, const int filter_size, const int filter_shift, const short taps[4])
Applies the filter to a row and its successor.
dirac::UpConverter::m_orig_yl
const int m_orig_yl
Definition: upconvert.h:93
dirac::UpConverter::UpConverter
UpConverter(int min_val, int max_val, int orig_xlen, int orig_ylen)
Constructor.
dirac::UpConverter::m_width_old
int m_width_old
Definition: upconvert.h:85
dirac::UpConverter::m_max_val
const int m_max_val
Definition: upconvert.h:90

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