jumpaku/ffmpeg-docker repository overview

docker run -it -v $(pwd):/workdir jumpaku/ffmpeg-docker bash

services: 
  ffmpeg:
    image: 'jumpaku/ffmpeg-docker'
    working_dir: '/workdir/'
    volumes: 
      - './:/workdir/'

docker-compose run ffmpeg bash

ffmpeg -i video-in.mov -preset veryslow video-out.mp4

ffmpeg -i video-in.mp4 -crf 20 video-out.mp4