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

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

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

addSolid()

Creates a new SolidSource object, with values set as specified; sets the new SolidSource as the mainSource value of a new FootageItem object, and adds the F

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