Decreases the use-count by one. If the use count reaches zero, this #GstDeviceProvider will stop providering the devices. This needs to be called the same number of times that gst.device_provider.DeviceProvider.start was called.
Decreases the use-count by one. If the use count reaches zero, this #GstDeviceProvider will stop providering the devices. This needs to be called the same number of times that gst.device_provider.DeviceProvider.start was called.