frei0r-filter-perspective parameters?

Jos van Riswick josvanr at
Mon Jun 6 23:28:10 PDT 2011


How do I specify the parameters of the frei0r perspective filter? I looked
at the source of this filter, and the parameters seem to be 'top
left', 'top right',
'bottom left' and 'bottom right'. Probably the 4 corner points (x,y) of an area
that will be a rectangle after the transformation (I hope).

How do i find out the way to feed parameters (coordinate pairs in this case)
to the frei0r gstreamer plugin?


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