pixelAspect

The pixel aspect ratio PAR of the item.ユ In a CompItem, the value is linked to the composition.ユ In a FootageItem, the value is linked to the mainSource obj

setProxyWithPlaceholder()

Creates a PlaceholderSource object with specified values, sets this as the value of the proxySource attribute, and sets useProxy to true. It does not preser

setProxyWithSolid()

Creates a SolidSource object with specified values, sets this as the value of the proxySource attribute, and sets useProxy to true. It does not preserve the

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

frameBlendingType

The type of frame blending to perform when frame blending is enabled for the layer.A FrameBlendingType enumerated value; read/write. One of:FrameBlendingTyp

replaceWithSolid()

Changes the source of this FootageItem to the specified solid. Creates a new SolidSource object, sets its values from theparameters, andsets mainSource to t

boxTextSize

The size of a paragraph box text layer as a [width, height] array of pixel dimensions.Array of two integers minimum value of 1 ; read/write.

addComp()

Creates a new composition. Creates and returns a new CompItem object and adds it to this collection.If the ItemCollection belongs to the project or the root