【Docker】dockerFile 安装ffmpeg

echo "deb [check-valid-until=no] http://archive.debian.org/debian jessie-backports main" > /etc/apt/sources.list.d/jessie-backports.list

sed -i '/deb http:\/\/deb.debian.org\/debian jessie-updates main/d' /etc/apt/sources.list

更新源

apt-get -o Acquire::Check-Valid-Until=false update

安装ffmpeg

apt-get -y --force-yes install yasm ffmpeg