vidstab

ff-batch.sh

#!/usr/bin/env zsh
# batch convert video
setopt ERR_EXIT NO_UNSET

function main() {
  typeset -r vcodec='libx265'
  typeset -r acodec='libvorbis'
  typeset -ri crf=24
  typeset -ri fps=25
  typeset -ri vs_zoom=20
  typeset -ri vs_optzoom=2
  typeset -ri vs_zoomspeed=1
  typeset -r preset=ultrafast

  for f in $@; do
    path_noext=$(echo $f | rev | cut -d. -f'2-' | rev)
    fn_noext=$(basename $path_noext)
    if [[ ! -e "${fn_noext}.trf" ]]; then
      printf '= = = = = = = = = =  first pass = = = = = = = = = =\n\n'
      ffmpeg -i "$f" -an -f null \
        -vf \
"vidstabdetect=shakiness=10:accuracy=15:result='${fn_noext}.trf_incomplete'"\
        /dev/null
      mv "${fn_noext}.trf_incomplete" "${fn_noext}.trf"
    else
      printf 'Skipped first pass\n'
    fi
    printf '= = = = = = = = = = second pass = = = = = = = = = =\n\n'
    ffmpeg -i "$f" \
      -vcodec $vcodec -crf $crf -preset $preset -acodec $acodec -r $fps \
      -err_detect ignore_err -cpuflags -sse2 \
      -vf \
"vidstabtransform=zoom=$vs_zoom:optzoom=$vs_optzoom:zoomspeed=$vs_zoomspeed:
interpol=bicubic:input='${fn_noext}.trf'",\
"scale=1920:-1:flags=lanczos"\
      -y "${fn_noext}_vidstab.mkv"
    #rm -v "${fn_noext}.trf"
  done
}

main $@