gstcontroller

type ARGBControlBinding ¶

type ARGBControlBinding struct {
	gst.ControlBinding
	// contains filtered or unexported fields
}

ARGBControlBinding: value mapping object that attaches multiple control sources to a guint gobject properties representing a color. A control value of 0.0 will turn the color component off and a value of 1.0 will be the color level.

func NewARGBControlBinding(object gst.GstObjector, propertyName string, csA, csR, csG, csB gst.ControlSourcer) *ARGBControlBinding

type ARGBControlBindingClass ¶

type ARGBControlBindingClass struct {
	// contains filtered or unexported fields
}

ARGBControlBindingClass class structure of ARGBControlBinding.

An instance of this type is always passed by reference.

func (a *ARGBControlBindingClass) ParentClass() *gst.ControlBindingClass

type ARGBControlBindingOverrides ¶

type ARGBControlBindingOverrides struct {
}

ARGBControlBindingOverrides contains methods that are overridable.

type ControlPoint ¶

type ControlPoint struct {
	// contains filtered or unexported fields
}

ControlPoint: internal structure for value+time and various temporary values used for interpolation. This "inherits" from GstTimedValue.

An instance of this type is always passed by reference.

func (cp *ControlPoint) Copy() *ControlPoint

func (c *ControlPoint) SetValue(value float64)

func (c *ControlPoint) Timestamp() gst.ClockTime

func (c *ControlPoint) Value() float64

type DirectControlBinding ¶

type DirectControlBinding struct {
	gst.ControlBinding
	// contains filtered or unexported fields
}

DirectControlBinding: value mapping object that attaches control sources to gobject properties. It will map the control values directly to the target property range. If a non-absolute direct control binding is used, the value range [0.0 ... 1.0] is mapped to full target property range, and all values outside the range will be clipped. An absolute control binding will not do any value transformations.

func NewDirectControlBinding(object gst.GstObjector, propertyName string, cs gst.ControlSourcer) *DirectControlBinding

func NewDirectControlBindingAbsolute(object gst.GstObjector, propertyName string, cs gst.ControlSourcer) *DirectControlBinding

type DirectControlBindingClass ¶

type DirectControlBindingClass struct {
	// contains filtered or unexported fields
}

DirectControlBindingClass class structure of DirectControlBinding.

An instance of this type is always passed by reference.

func (d *DirectControlBindingClass) ParentClass() *gst.ControlBindingClass

type DirectControlBindingOverrides ¶

type DirectControlBindingOverrides struct {
}

DirectControlBindingOverrides contains methods that are overridable.

type InterpolationControlSource ¶

type InterpolationControlSource struct {
	TimedValueControlSource
	// contains filtered or unexported fields
}

InterpolationControlSource is a ControlSource, that interpolates values between user-given control points. It supports several interpolation modes and property types.

To use InterpolationControlSource get a new instance by calling gst_interpolation_control_source_new(), bind it to a Spec and set some control points by calling gst_timed_value_control_source_set().

All functions are MT-safe.

func NewInterpolationControlSource() *InterpolationControlSource

type InterpolationControlSourceClass ¶

type InterpolationControlSourceClass struct {
	// contains filtered or unexported fields
}

InterpolationControlSourceClass: instance of this type is always passed by reference.

func (i *InterpolationControlSourceClass) ParentClass() *TimedValueControlSourceClass

type InterpolationControlSourceOverrides ¶

type InterpolationControlSourceOverrides struct {
}

InterpolationControlSourceOverrides contains methods that are overridable.

type InterpolationMode ¶

type InterpolationMode C.gint

InterpolationMode various interpolation modes available.

const (
	// InterpolationModeNone: steps-like interpolation, default.
	InterpolationModeNone InterpolationMode = iota
	// InterpolationModeLinear: linear interpolation.
	InterpolationModeLinear
	// InterpolationModeCubic: cubic interpolation (natural), may overshoot the
	// min or max values set by the control point, but is more 'curvy'.
	InterpolationModeCubic
	// InterpolationModeCubicMonotonic: monotonic cubic interpolation, will not
	// produce any values outside of the min-max range set by the control points
	// (Since: 1.8).
	InterpolationModeCubicMonotonic
)

func (i InterpolationMode) String() string

type LFOControlSource ¶

type LFOControlSource struct {
	gst.ControlSource
	// contains filtered or unexported fields
}

LFOControlSource is a ControlSource, that provides several periodic waveforms as control values.

To use LFOControlSource get a new instance by calling gst_lfo_control_source_new(), bind it to a Spec and set the relevant properties.

All functions are MT-safe.

func NewLFOControlSource() *LFOControlSource

type LFOControlSourceClass ¶

type LFOControlSourceClass struct {
	// contains filtered or unexported fields
}

LFOControlSourceClass: instance of this type is always passed by reference.

func (l *LFOControlSourceClass) ParentClass() *gst.ControlSourceClass

type LFOControlSourceOverrides ¶

type LFOControlSourceOverrides struct {
}

LFOControlSourceOverrides contains methods that are overridable.

type LFOWaveform ¶

type LFOWaveform C.gint

LFOWaveform various waveform modes available.

const (
	// LfoWaveformSine: sine waveform.
	LfoWaveformSine LFOWaveform = iota
	// LfoWaveformSquare: square waveform.
	LfoWaveformSquare
	// LfoWaveformSaw: saw waveform.
	LfoWaveformSaw
	// LfoWaveformReverseSaw: reverse saw waveform.
	LfoWaveformReverseSaw
	// LfoWaveformTriangle: triangle waveform.
	LfoWaveformTriangle
)

func (l LFOWaveform) String() string

type ProxyControlBinding ¶

type ProxyControlBinding struct {
	gst.ControlBinding
	// contains filtered or unexported fields
}

ProxyControlBinding that forwards requests to another ControlBinding.

func NewProxyControlBinding(object gst.GstObjector, propertyName string, refObject gst.GstObjector, refPropertyName string) *ProxyControlBinding

type ProxyControlBindingClass ¶

type ProxyControlBindingClass struct {
	// contains filtered or unexported fields
}

ProxyControlBindingClass: opaque ProxyControlBindingClass struct

An instance of this type is always passed by reference.

type ProxyControlBindingOverrides ¶

type ProxyControlBindingOverrides struct {
}

ProxyControlBindingOverrides contains methods that are overridable.

type TimedValueControlSource ¶

type TimedValueControlSource struct {
	gst.ControlSource
	// contains filtered or unexported fields
}

TimedValueControlSource: base class for ControlSource that use time-stamped values.

When overriding bind, chain up first to give this bind implementation a chance to setup things.

All functions are MT-safe.

func BaseTimedValueControlSource(obj TimedValueControlSourcer) *TimedValueControlSource

func (self *TimedValueControlSource) All() []*gst.TimedValue

func (self *TimedValueControlSource) ConnectValueAdded(f func(timedValue *ControlPoint)) coreglib.SignalHandle

func (self *TimedValueControlSource) ConnectValueChanged(f func(timedValue *ControlPoint)) coreglib.SignalHandle

func (self *TimedValueControlSource) ConnectValueRemoved(f func(timedValue *ControlPoint)) coreglib.SignalHandle

func (self *TimedValueControlSource) Count() int

func (self *TimedValueControlSource) Set(timestamp gst.ClockTime, value float64) bool

func (self *TimedValueControlSource) SetFromList(timedvalues []*gst.TimedValue) bool

func (self *TimedValueControlSource) Unset(timestamp gst.ClockTime) bool

func (self *TimedValueControlSource) UnsetAll()

type TimedValueControlSourceClass ¶

type TimedValueControlSourceClass struct {
	// contains filtered or unexported fields
}

TimedValueControlSourceClass: instance of this type is always passed by reference.

func (t *TimedValueControlSourceClass) ParentClass() *gst.ControlSourceClass

type TimedValueControlSourceOverrides ¶

type TimedValueControlSourceOverrides struct {
}

TimedValueControlSourceOverrides contains methods that are overridable.

type TimedValueControlSourcer ¶

type TimedValueControlSourcer interface {
	coreglib.Objector
	// contains filtered or unexported methods
}

TimedValueControlSourcer describes types inherited from class TimedValueControlSource.

To get the original type, the caller must assert this to an interface or another type.

type TriggerControlSource ¶

type TriggerControlSource struct {
	TimedValueControlSource
	// contains filtered or unexported fields
}

TriggerControlSource is a ControlSource, that returns values from user-given control points. It allows for a tolerance on the time-stamps.

To use TriggerControlSource get a new instance by calling gst_trigger_control_source_new(), bind it to a Spec and set some control points by calling gst_timed_value_control_source_set().

All functions are MT-safe.

func NewTriggerControlSource() *TriggerControlSource

type TriggerControlSourceClass ¶

type TriggerControlSourceClass struct {
	// contains filtered or unexported fields
}

TriggerControlSourceClass: instance of this type is always passed by reference.

func (t *TriggerControlSourceClass) ParentClass() *TimedValueControlSourceClass

type TriggerControlSourceOverrides ¶

type TriggerControlSourceOverrides struct {
}

TriggerControlSourceOverrides contains methods that are overridable.