A class that represents a fraction. More...

#include <gstreamermm/value.h>

Public Member Functions
	Fraction ()
	Constructs a zero Gst::Fraction (0/1). More...

	Fraction (const Fraction& src)
	Constructs a Gst::Fraction from another. More...

	Fraction (int num, int denom)
	Constructs a Gst::Fraction (num/denom). More...

	Fraction (const Glib::ValueBase& gst_fraction_value)
	Constructs a Gst::Fraction from a GST_TYPE_FRACTION. More...

	Fraction (const GValue& gst_fraction_value)
	Constructs a Gst::Fraction from a GST_TYPE_FRACTION. More...

Fraction&	operator= (const Fraction& src)

Public Attributes
int	num

int	denom

Detailed Description

A class that represents a fraction.

Gst::Fraction is used to store a fraction in Gst::Structures of Gst::Caps as a value representing a property (see GStreamer Application Development Manual section 8.2.2 and GstValue docs). When the value is set, it is transformed to a GStreamer GType so retrieving the value is a bit different. The class can be used in setting and getting a Gst::Structure field like so:

Glib::Value<Gst::Fraction> value;
value.init(Glib::Value<Gst::Fraction>::value_type());
value.set(Gst::Fraction(25,1));
Gst::Structure structure("my-structure");
structure.set_field("framerate", value);
...
Glib::ValueBase gst_value;
structure.get_field("framerate", gst_value);
Gst::Fraction fract(gst_value);
int numerator = fract.num;
...

Last reviewed on 2016-08-27 (1.8.0)

Constructor & Destructor Documentation

◆ Fraction() [1/5]

Gst::Fraction::Fraction ( )

Constructs a zero Gst::Fraction (0/1).

◆ Fraction() [2/5]

Gst::Fraction::Fraction ( const Fraction& src )

Constructs a Gst::Fraction from another.

◆ Fraction() [3/5]

Gst::Fraction::Fraction	(	int	num,
		int	denom
	)

Constructs a Gst::Fraction (num/denom).

◆ Fraction() [4/5]

Gst::Fraction::Fraction ( const Glib::ValueBase & gst_fraction_value )

explicit

Constructs a Gst::Fraction from a GST_TYPE_FRACTION.

◆ Fraction() [5/5]

Gst::Fraction::Fraction ( const GValue & gst_fraction_value )

explicit

Constructs a Gst::Fraction from a GST_TYPE_FRACTION.

Member Function Documentation

◆ operator=()

Fraction& Gst::Fraction::operator= ( const Fraction& src )

Member Data Documentation

◆ denom

int Gst::Fraction::denom

◆ num

int Gst::Fraction::num

Public Member Functions

Public Attributes