research.m1stereo.tv/gitweb/ - melted/blob - demo/mlt_bouncy_ball

   1 inigo \
   2 clip3.dv \
   3 -track \
   4 clip1.dv \
   5 -transition \
   6 region:circle \
   7 composite.geometry="10%,10%:20%x20%;33=30%,70%:25%x25%;66=70%,30%:15%x15%;-1=70%,70%:20%x20%" \
   8 composite.out=100 \
   9 composite.softness=0.1 \
  10 a_track=0 \
  11 b_track=1 \
  12 in=0 \
  13 out=5000 \
  14 $*