DeviceProviderFactory

Added in version 1.4.

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

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

Methods

class DeviceProviderFactory

find(name: str) → DeviceProviderFactory | None

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

Added in version 1.4.

get() → DeviceProvider | None: Returns the device provider of the type defined by the given device providerfactory.

Added in version 1.4.

get_by_name(factoryname: str) → DeviceProvider | None

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

Added in version 1.4.

get_device_provider_type() → type: Get the Type 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 load().

Added in version 1.4.

get_metadata(key: str) → str | None

Get the metadata on factory with key.

Added in version 1.4.

get_metadata_keys() → list[str] | None: Get the available keys for the metadata on factory.

Added in version 1.4.

has_classes(classes: str | None = None) → bool

Check if factory matches all of the given classes

Added in version 1.4.

Parameters:: classes – a “/” separate list of classes to match, only match if all classes are matched

has_classesv(classes: Sequence[str] | None = None) → bool

Check if factory matches all of the given classes

Added in version 1.4.

Parameters:: classes – a None terminated array of classes to match, only match if all classes are matched

list_get_device_providers(minrank: Rank) → list[DeviceProviderFactory]

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

Added in version 1.4.