Gst.DeviceProviderFactory¶

Subclasses:: None

Methods¶

Inherited:: Gst.PluginFeature (10), Gst.Object (27), GObject.Object (37)
Structs:: GObject.ObjectClass (5)

class	`find` (name)
class	`get_by_name` (factoryname)
class	`list_get_device_providers` (minrank)
	`get` ()
	`get_device_provider_type` ()
	`get_metadata` (key)
	`get_metadata_keys` ()
	`has_classes` (classes)
	`has_classesv` (classes)

Virtual Methods¶

Inherited:: Gst.Object (1), GObject.Object (7)

Properties¶

Inherited:: Gst.Object (2)

Signals¶

Inherited:: Gst.Object (1), GObject.Object (1)

Fields¶

Inherited:: Gst.Object (1), GObject.Object (1)

Class Details¶

class Gst.DeviceProviderFactory(**kwargs)¶

Bases:: Gst.PluginFeature
Abstract:: No
Structure:: Gst.DeviceProviderFactoryClass

Gst.DeviceProviderFactory is used to create instances of device providers. A GstDeviceProviderfactory can be added to a Gst.Plugin as it is also a Gst.PluginFeature.

Use the Gst.DeviceProviderFactory.find() and Gst.DeviceProviderFactory.get() functions to create device provider instances or use Gst.DeviceProviderFactory.get_by_name() as a convenient shortcut.

New in version 1.4.

classmethod find(name)[source]¶

Parameters:: name (str) – name of factory to find
Returns:: Gst.DeviceProviderFactory if found, None otherwise
Return type:: Gst.DeviceProviderFactory or None

Search for an device provider factory of the given name. Refs the returned device provider factory; caller is responsible for unreffing.

New in version 1.4.

classmethod get_by_name(factoryname)[source]¶

Parameters:: factoryname (str) – a named factory to instantiate
Returns:: a Gst.DeviceProvider or None if unable to create device provider
Return type:: Gst.DeviceProvider or None

Returns the device provider of the type defined by the given device provider factory.

New in version 1.4.

classmethod list_get_device_providers(minrank)[source]¶

Parameters:: minrank (Gst.Rank) – Minimum rank
Returns:: a GLib.List of Gst.DeviceProviderFactory device providers. Use Gst.PluginFeature.list_free() after usage.
Return type:: [Gst.DeviceProviderFactory]

Get a list of factories with a rank greater or equal to minrank. The list of factories is returned by decreasing rank.

New in version 1.4.

get()[source]¶

Returns:: the Gst.DeviceProvider or None if the device provider couldn’t be created
Return type:: Gst.DeviceProvider or None

Returns the device provider of the type defined by the given device providerfactory.

New in version 1.4.

get_device_provider_type()[source]¶

Returns:: the GObject.GType for device providers managed by this factory.
Return type:: GObject.GType

Get the GObject.GType for device providers managed by this factory. The type can only be retrieved if the device provider factory is loaded, which can be assured with Gst.PluginFeature.load().

New in version 1.4.

get_metadata(key)[source]¶

Parameters:: key (str) – a key
Returns:: the metadata with key on self or None when there was no metadata with the given key.
Return type:: str or None

Get the metadata on self with key.

New in version 1.4.

get_metadata_keys()[source]¶

Returns:: a None-terminated array of key strings, or None when there is no metadata. Free with GLib.strfreev() when no longer needed.
Return type:: [str] or None

Get the available keys for the metadata on self.

New in version 1.4.

has_classes(classes)[source]¶

Parameters:: classes (str or None) – a “/” separate list of classes to match, only match if all classes are matched
Returns:: True if self matches or if classes is None.
Return type:: bool

Check if self matches all of the given classes

New in version 1.4.

has_classesv(classes)[source]¶

Parameters:: classes ([str] or None) – a None terminated array of classes to match, only match if all classes are matched
Returns:: True if self matches.
Return type:: bool

Check if self matches all of the given classes

New in version 1.4.