Create videos with ffmpeg

run-ffmpeg.js

// Various ways that I have called ffmpeg in the past

exec(
  `ffmpeg -y \
    -framerate 60 \
    -pattern_type glob \
    -i "${framesDirectory}/*.png" \
    -crf 27 \
    -pix_fmt yuv420p \
    -filter:v scale=1000:-1 \
    ${mp4_path}`
);

exec(
  `ffmpeg -y \
    -framerate ${fps} \
    -pattern_type glob \
    -i "${framesDirectory}/*.png" \
    -vcodec libx264 \
    -crf 22 \
    -pix_fmt yuv420p \
    -x264-params keyint=1 \
    -filter:v scale=720:-1 \
    ${outPath}`
);

exec(
  `ffmpeg -y \
    -framerate ${30} \
    -pattern_type glob \
    -i "${framesDirectory}/*.png" \
    -crf ${crf} \
    -filter:v scale=1000:-2 \
    -pix_fmt yuv420p \
    -x264-params keyint=1 \
    ${outputDirectory}/${fileName}.mp4`
);