FROM circleci/node:10

# install OpenCL driver
RUN sudo apt-get update \
  && sudo apt-get install software-properties-common \
  && sudo add-apt-repository ppa:jonathonf/ffmpeg-4 \
  && sudo apt-get update \
  && sudo apt-get install libavcodec-dev libavformat-dev libavdevice-dev libavfilter-dev libavutil-dev libpostproc-dev libswresample-dev libswscale-dev

# delete all the apt list files since they're big and get stale quickly
RUN sudo rm -rf /var/lib/apt/lists/*
# this forces "apt-get update" in dependent images, which is also good