org.freedesktop.gstreamer

Class ControlSource

java.lang.Object

org.freedesktop.gstreamer.glib.NativeObject

org.freedesktop.gstreamer.glib.RefCountedObject

org.freedesktop.gstreamer.glib.GObject

org.freedesktop.gstreamer.GstObject

org.freedesktop.gstreamer.ControlSource

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

LFOControlSource, TimedValueControlSource

public class ControlSource
extends GstObject

Base class for control source sources.

See upstream documentation at https://gstreamer.freedesktop.org/data/doc/gstreamer/stable/gstreamer/html/GstControlSource.html

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	ControlSource.Handle
static class	ControlSource.TimedValue A simple structure for saving a timestamp and a value.

Nested classes/interfaces inherited from class org.freedesktop.gstreamer.glib.GObject

GObject.GCallback, GObject.GInterface

Nested classes/interfaces inherited from class org.freedesktop.gstreamer.glib.NativeObject

NativeObject.Initializer, NativeObject.TypeProvider, NativeObject.TypeRegistration<T extends NativeObject>

Field Summary

Fields

Modifier and Type	Field and Description
static String	GTYPE_NAME

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ControlSource(ControlSource.Handle handle, boolean needRef)

Method Summary

Modifier and Type	Method and Description
double	getValue(long timestamp) Gets the value for this ControlSource at a given timestamp.
boolean	getValueArray(long timestamp, long interval, double[] values) Gets an array of values for for this ControlSource.

Methods inherited from class org.freedesktop.gstreamer.GstObject

addControlBinding, getAsString, getControlBinding, getName, getParent, hasActiveControlBindings, removeControlBinding, setAsString, setControlBindingDisabled, setControlBindingsDisabled, setName, suggestNextSync, syncValues, toString

Methods inherited from class org.freedesktop.gstreamer.glib.GObject

addCallback, connect, connect, disconnect, dispose, emit, emit, get, getPropertyDefaultValue, getPropertyMaximumValue, getPropertyMinimumValue, getRefCount, getTypeName, invalidate, listPropertyNames, removeCallback, set

Methods inherited from class org.freedesktop.gstreamer.glib.NativeObject

close, disown, equals, getPointer, getRawPointer, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

GTYPE_NAME

public static final String GTYPE_NAME

See Also:

Constant Field Values

Constructor Detail

ControlSource

protected ControlSource(ControlSource.Handle handle,
                        boolean needRef)

Method Detail

getValue

public double getValue(long timestamp)

Gets the value for this ControlSource at a given timestamp.

Parameters:

timestamp - the time for which the value should be returned

Returns:

value

Throws:

IllegalStateException - if the value could not be calculated

getValueArray

public boolean getValueArray(long timestamp,
                             long interval,
                             double[] values)

Gets an array of values for for this ControlSource. Values that are undefined contain NANs.

Parameters:

timestamp - the first timestamp

interval - the time steps

values - array to put control-values in

Returns:

true if the values were successfully calculated