active

When true, the layer’s video is active at the current time.For this to be true, the layer must be enabled, no other layer may be soloing unless this layer i

hasAudio

When true, the AVItem has an audio component.ユ In a CompItem, the value is linked to the composition.ユ In a FootageItem, the value is linked to the mainSour

AVItem object

The AVItem object provides access to attributes and methods of audio/visual files imported into After Effects.ユ AVItem is a subclass of Item. All methods an

audioEnabled

When true, the layer’s audio is enabled. This value corresponds to the audio toggle switch in the Timelinepanel.Boolean; read/write.

audioActive

True if the layer’s audio is active at the current time.For this value to be true, audioEnabled mustbe true, no other layer with audio may be soloing unless

hasAudio

True if the layer contains an audio component, regardless of whether it is audio-enabled or soloed.Boolean; read-only.

audioActiveAtTime()

Returns true if this layer’s audio will be active at the specified time.For this method to return true, audioEnabled must be true, no other layer with audio

AVLayer object

The AVLayer object provides an interface to those layers that contain AVItem objects composition layers, footage layers, solid layers, text layers, and sou

property()

Finds and returns a child property of this group, as specified by either its index or name.A name specification can use the same syntax that is available wi

add()

Creates a new AVLayer object containing the specified item, and adds it to this collection.The new layer honors the Create Layers at Composition Start Time