ffmpeg

https://learnku.com/laravel/t/327/using-ffmpeg-to-deal-with-multimedia-files-under-laravel
https://learnku.com/laravel/t/7329/processing-multimedia-files-using-ffmpeg-under-laravel-ubuntu-1604-lts

​```shell script
sudo add-apt-repository ppa:jonathonf/ffmpeg-4
sudo apt-get update
sudo apt-get install ffmpeg
​```

https://github.com/PHP-FFMpeg/PHP-FFMpeg

```shell script
composer require php-ffmpeg/php-ffmpeg
```