Stefano Sabatini
19add3224f
lavfi/scale: implement clever/insane parsing heuristic, and add a size option ...
If the first argument can be read as a video size, set that output size
in the scale. This allows to specify in a filtergraph scale=qcif or
scale=320x240.
This is not completely safe, for example in case of a typo in the video
size string the first argument will be read as the input width
expression, giving rise to a confusing comment.
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19add3224f