xscale,r,h,1.0,,,Secondary scaling factor (in x)
yscale,r,h,1.0,,,Secondary scaling factor (in y)
xsh,r,h,0.0,,,Secondary shift in X output pixels
ysh,r,h,0.0,,,Secondary shift in Y output pixels
rot,r,h,0.0,,,Secondary rotation (degrees anti-clockwise)
shft_fr,s,h,"output","input|output",,"Frame in which secondary shifts are applied"
