OptionalwidthOptionalheightHeight. Can use 'h' as shorthand.
OptionalwShorthand for width
OptionalhShorthand for height
OptionalflagsScaling algorithm. Default: bicubic
Optionalforce_Force aspect ratio: decrease, increase, or disable
Optionalforce_Force divisibility by N (common: 2)
OptionalevalEvaluate expressions: init or frame
Width. Can use 'w' as shorthand.