# Dirac - A Video Codec

Created by the British Broadcasting Corporation.

quality_monitor.h
Go to the documentation of this file.
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37
38#ifndef _QUALITY_MONITOR_H_
39#define _QUALITY_MONITOR_H_
40
41#include <libdirac_common/common.h>
42#include <libdirac_encoder/enc_picture.h>
43#include <libdirac_common/wavelet_utils.h>
44 namespace dirac
45{
46
48 class QualityMonitor
49 {
50 public:
51
53 /*
54 Constructor sets up initial Lagrangian values.
55 */
56 QualityMonitor(EncoderParams& ep);
57
58
60 ~QualityMonitor();
61
63 // //
64 // Assumes default copy constructor, assignment = //
65 // and destructor //
67
69
73 void UpdateModel(const EncPicture& enc_picture );
74
76 void ResetAll();
77
79 void WriteLog();
80
81 private:
82 //functions
83
84
86 double QualityVal( const PicArray& coded_data ,
87 const PicArray& orig_data,
88 const int xlen,
89 const int ylen);
90
91 //member variables//
93
95 EncoderParams& m_encparams;
96
98 long double m_totalmse_averageY;
99
101 long double m_totalmse_averageU;
102
104 long double m_totalmse_averageV;
105
107 int m_allpicture_total;
108
110 OneDArray<long double> m_mse_averageY;
111
113 OneDArray<long double> m_mse_averageU;
114
116 OneDArray<long double> m_mse_averageV;
117
119 OneDArray<int> m_picture_total;
120 };
121
122} // namespace dirac
123
124#endif
wavelet_utils.h
common.h
enc_picture.h
dirac
Definition of class SequenceHeaderByteIO.
Definition: accessunit_byteio.h:52
dirac::OneDArray< long double >
dirac::PicArray
A class for picture component data.
Definition: common.h:719
dirac::EncoderParams
Parameters for the encoding process.
Definition: common.h:1280
dirac::EncPicture
Definition: enc_picture.h:65
dirac::QualityMonitor
Class to monitor the quality of pictures and adjust coding parameters appropriately.
Definition: quality_monitor.h:49
dirac::QualityMonitor::m_picture_total
OneDArray< int > m_picture_total
The number of pictures of each type
Definition: quality_monitor.h:119
dirac::QualityMonitor::m_mse_averageU
OneDArray< long double > m_mse_averageU
The average U mse for the picture types.
Definition: quality_monitor.h:113
dirac::QualityMonitor::m_totalmse_averageV
long double m_totalmse_averageV
The overall average V mse.
Definition: quality_monitor.h:104
dirac::QualityMonitor::m_totalmse_averageU
long double m_totalmse_averageU
The overall average U mse.
Definition: quality_monitor.h:101
dirac::QualityMonitor::m_totalmse_averageY
long double m_totalmse_averageY
The overall average Y mse.
Definition: quality_monitor.h:98
dirac::QualityMonitor::m_encparams
EncoderParams & m_encparams
A reference to the encoder parameters.
Definition: quality_monitor.h:95
dirac::QualityMonitor::m_mse_averageY
OneDArray< long double > m_mse_averageY
The average Y mse for the picture types.
Definition: quality_monitor.h:110
dirac::QualityMonitor::m_allpicture_total
int m_allpicture_total
The total number of pictures coded.
Definition: quality_monitor.h:107
dirac::QualityMonitor::m_mse_averageV
OneDArray< long double > m_mse_averageV
The average V mse for the picture types.
Definition: quality_monitor.h:116
dirac::QualityMonitor::~QualityMonitor
~QualityMonitor()
Destructor.
dirac::QualityMonitor::QualityVal
double QualityVal(const PicArray &coded_data, const PicArray &orig_data, const int xlen, const int ylen)
Calculate the quality of coded wrt original picture.
dirac::QualityMonitor::WriteLog
void WriteLog()
Write a log of the quality to date.
dirac::QualityMonitor::QualityMonitor
QualityMonitor(EncoderParams &ep)
Constructor. Sets up initial Lagrangian values.
dirac::QualityMonitor::ResetAll
void ResetAll()
Reset the quality factors (say if there's been a cut)
dirac::QualityMonitor::UpdateModel
void UpdateModel(const EncPicture &enc_picture)
Update the mse factors, returning true if we need to recode.

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