Gst.ControlSource – gstreamer-1.0 – Vala Binding Reference

Description:

[ CCode ( type_id = "gst_control_source_get_type ()" ) ]
public abstract class ControlSource : Object

The ControlSource is a base class for control value sources that could be used to get timestamp-value pairs.

A control source essentially is a function over time.

A ControlSource is used by first getting an instance of a specific control-source, creating a binding for the control-source to the target property of the element and then adding the binding to the element. The binding will convert the data types and value range to fit to the bound property.

For implementing a new ControlSource one has to implement ControlSourceGetValue and ControlSourceGetValueArray functions. These are then used by get_value and get_value_array to get values for specific timestamps.

Namespace: Gst

Content:

Creation methods:

Methods:

public bool get_value (ClockTime timestamp, out double value)

Gets the value for this ControlSource at a given timestamp.

public bool get_value_array (ClockTime timestamp, ClockTime interval, double[] values)

Gets an array of values for for this ControlSource.

Fields:

Inherited Members:

All known members inherited from class GLib.Object

@get
@new
@ref
@set
add_toggle_ref
add_weak_pointer
bind_property
connect
constructed
disconnect
dispose
dup_data
dup_qdata
force_floating
freeze_notify
get_class
get_data

get_property
get_qdata
get_type
getv
interface_find_property
interface_install_property
interface_list_properties
is_floating
new_valist
new_with_properties
newv
notify
notify_property
ref_count
ref_sink
remove_toggle_ref
remove_weak_pointer

replace_data
replace_qdata
set_data
set_data_full
set_property
set_qdata
set_qdata_full
set_valist
setv
steal_data
steal_qdata
thaw_notify
unref
watch_closure
weak_ref
weak_unref