OpenShot Library | libopenshot  0.2.5
Public Member Functions | Public Attributes | List of all members
openshot::Fraction Class Reference

This class represents a fraction. More...

#include <Fraction.h>

Public Member Functions

 Fraction ()
 Default Constructor. More...
 
 Fraction (int num, int den)
 Constructor with numerator and denominator. More...
 
int GreatestCommonDenominator ()
 Calculate the greatest common denominator. More...
 
Fraction Reciprocal ()
 Return the reciprocal as a Fraction. More...
 
void Reduce ()
 Reduce this fraction (i.e. 640/480 = 4/3) More...
 
double ToDouble ()
 Return this fraction as a double (i.e. 1/2 = 0.5) More...
 
float ToFloat ()
 Return this fraction as a float (i.e. 1/2 = 0.5) More...
 
int ToInt ()
 Return a rounded integer of the fraction (for example 30000/1001 returns 30) More...
 

Public Attributes

int den
 Denominator for the fraction. More...
 
int num
 Numerator for the fraction. More...
 

Detailed Description

This class represents a fraction.

Fractions are often used in video editing to represent ratios and rates, for example: pixel ratios, frames per second, timebase, and other common ratios. Fractions are preferred over decimals due to their increased precision.

Definition at line 45 of file Fraction.h.

Constructor & Destructor Documentation

◆ Fraction() [1/2]

Fraction::Fraction ( )

Default Constructor.

Definition at line 36 of file Fraction.cpp.

Referenced by Reciprocal().

◆ Fraction() [2/2]

Fraction::Fraction ( int  num,
int  den 
)

Constructor with numerator and denominator.

Definition at line 39 of file Fraction.cpp.

Member Function Documentation

◆ GreatestCommonDenominator()

int Fraction::GreatestCommonDenominator ( )

Calculate the greatest common denominator.

Definition at line 59 of file Fraction.cpp.

Referenced by Reduce().

◆ Reciprocal()

Fraction Fraction::Reciprocal ( )

◆ Reduce()

void Fraction::Reduce ( )

◆ ToDouble()

double Fraction::ToDouble ( )

◆ ToFloat()

float Fraction::ToFloat ( )

◆ ToInt()

int Fraction::ToInt ( )

Return a rounded integer of the fraction (for example 30000/1001 returns 30)

Definition at line 54 of file Fraction.cpp.

Referenced by openshot::FFmpegReader::GetFrame(), openshot::FrameMapper::PrintMapping(), and openshot::FrameMapper::Reader().

Member Data Documentation

◆ den

int openshot::Fraction::den

◆ num

int openshot::Fraction::num

The documentation for this class was generated from the following files: