ffmpeg \
  -i $INPUT_FILE \
  -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p,zscale=-1:1080:f=spline36 \
  $OUTPUT_FILE