GI.GstAudio.Objects.AudioFilter

AudioFilter is a BaseTransform<!-- -->-derived base class for simple audio filters, ie. those that output the same format that they get as input.

AudioFilter will parse the input format for you (with error checking) before calling your setup function. Also, elements deriving from AudioFilter may use audioFilterClassAddPadTemplates from their class_init function to easily configure the set of caps/formats that the element is able to handle.

Derived classes should override the AudioFilterClass.setup() and BaseTransformClass.transform_ip() and/or BaseTransformClass.transform() virtual functions in their class_init function.

Exported types

newtype AudioFilter

Memory-managed wrapper type.

Constructors

AudioFilter (ManagedPtr AudioFilter)

Instances

GObject AudioFilter

Defined in GI.GstAudio.Objects.AudioFilter

Methods

gobjectType :: IO GType

HasParentTypes AudioFilter

Defined in GI.GstAudio.Objects.AudioFilter

type ParentTypes AudioFilter

Defined in GI.GstAudio.Objects.AudioFilter

type ParentTypes AudioFilter = BaseTransform ': (Element ': (Object ': (Object ': ([] :: [Type]))))

class (GObject o, IsDescendantOf AudioFilter o) => IsAudioFilter o

Type class for types which can be safely cast to AudioFilter, for instance with toAudioFilter.

Instances

(GObject o, IsDescendantOf AudioFilter o) => IsAudioFilter o

Defined in GI.GstAudio.Objects.AudioFilter

toAudioFilter :: (MonadIO m, IsAudioFilter o) => o -> m AudioFilter

Cast to AudioFilter, for types for which this is known to be safe. For general casts, use castTo.

noAudioFilter :: Maybe AudioFilter

A convenience alias for Nothing :: Maybe AudioFilter.