Configure video thumbnails
You must install ffmpeg on your system to get video thumbnails working. This package is installed by default in the Pimcore packaged by Bitnami.
To install the FFmpeg component for Pimcore, follow these steps:
Log in to the server console and execute the following command:
$ sudo apt-get update && sudo apt-get install -y ffmpeg
Once these programs are installed, check that the ffmpeg binary is correctly installed:
$ which ffmpeg
For more information, refer to the official documentation.