#!/bin/bash

gpview ddfcnv-et-0.nc@comp --anim t --noannotate -sg:ifont=2 -sw:ldump=.true. -sw:lwait=.false. -sw:lwait1=.false. --range 0:1

for i in dcl_*.png
do
  pngtopnm $i | pnmcrop | pnmtopng > ${i/dcl/ddfcnv-et-0}
done

rm dcl_*.png

ffmpeg -r 10 -i ddfcnv-et-0_%04d.png -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -r 10 ddfcnv-et-0.mp4

mv ddfcnv-et-0_0051.png ddfcnv-et-0.png
rm ddfcnv-et-0_????.png