GstLFOControlSource

GstLFOControlSource is a GstControlSource, that provides several periodic waveforms as control values.

To use GstLFOControlSource get a new instance by calling gst_lfo_control_source_new, bind it to a GParamSpec and set the relevant properties.

All functions are MT-safe.

GstLFOControlSource

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstControlSource
                ╰──GstLFOControlSource

The instance structure of GstControlSource.

Members

parent (GstControlSource) –
No description available

Class structure

GstLFOControlSourceClass

Fields
parent_class (GstControlSourceClass) –
No description available

Constructors

gst_lfo_control_source_new

GstControlSource *
gst_lfo_control_source_new ()

This returns a new, unbound GstLFOControlSource.

Returns ( [transfer: full])

a new, unbound GstLFOControlSource.


Properties

amplitude

“amplitude” gdouble

Specifies the amplitude for the waveform of this GstLFOControlSource.

Flags : Read / Write


frequency

“frequency” gdouble

Specifies the frequency that should be used for the waveform of this GstLFOControlSource. It should be large enough so that the period is longer than one nanosecond.

Flags : Read / Write


offset

“offset” gdouble

Specifies the value offset for the waveform of this GstLFOControlSource.

Flags : Read / Write


timeshift

“timeshift” guint64

Specifies the timeshift to the right that should be used for the waveform of this GstLFOControlSource in nanoseconds.

To get a n nanosecond shift to the left use "(GST_SECOND / frequency) - n".

Flags : Read / Write


waveform

“waveform” GstLFOWaveform *

Specifies the waveform that should be used for this GstLFOControlSource.

Flags : Read / Write


Enumerations

GstLFOWaveform

The various waveform modes available.

Members
GST_LFO_WAVEFORM_SINE (0) –

sine waveform

GST_LFO_WAVEFORM_SQUARE (1) –

square waveform

GST_LFO_WAVEFORM_SAW (2) –

saw waveform

GST_LFO_WAVEFORM_REVERSE_SAW (3) –

reverse saw waveform

GST_LFO_WAVEFORM_TRIANGLE (4) –

triangle waveform


Constants

GST_TYPE_LFO_CONTROL_SOURCE

#define GST_TYPE_LFO_CONTROL_SOURCE \
  (gst_lfo_control_source_get_type ())

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