Adobe 12040118 - After Effects Standard Using Manual page 92

Help
Using Help
Returns
None.
FootageSource guessPulldown() method
app.project.ite m(index).mainSource . gu e ssPu lld ow n( m e t h o d )
app.project.ite m(index).proxySource . gu e ssPu lldow n( m e t h o d )
Description
The guessPulldown() method sets the fieldSeparationType and removePulldown to the best guesses for this
footage source. If isStill is true, no change will occur.
Parameters
Pul l dow n- used as an input argument to the guessPulldown()method of a FootageSource; use one of Enumerated
Types below
Me t h o d
Enumerated Types
PULLD OWN _3_2
ADVA N CE _ 24P
Returns
None.
FootageSource hasAlpha attribute
app.project.ite m(index).mainSource. hasAlpha
app.project.ite m(index).proxySource. hasAlpha
Description
The hasAlpha attribute of FootageSource is true if the footage has an alpha component.
If true, then the attributes alphaMode, invertAlpha, and premulColor will have relevance. If false, then those
three fields have no relevant meaning for the footage.
Type
Boolean; true if alpha exists. Read-only.
FootageSource highQualityFieldSeparation attribute
app.project.ite m(index).mainSource. h i g h Q u a l i t y F i e l d S e p a r a t i o n
app.project.ite m(index).proxySource. h i g h Q u a l i t y F i e l d S e p a r a t i o n
Description
The highQualityFieldSeparation attribute of FootageSource specifies whether After Effects will use special
algorithms to determine how to perform field separation.
It is an error to attempt to write to this attribute if isStill is true. It is an error to attempt to write to this
attribute if fieldSeparationType is FieldSeparationType.OFF.
Using Help
uses 3:2 pulldown method
uses Advance 24p method
Reference
Back 92
Back 92