It’s basically turns JPEG to ASCII,It's written in C and released under the GPL.
Click here a video how to do it.
Click here jp2a’s official website
FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. It includes libavcodec - the leading audio/video codec library. See the documentation for a complete feature list and the Changelog for recent changes.
FFmpeg is free software licensed under the LGPL or GPL depending on your choice of configuration options. If you use FFmpeg or its constituent libraries, you must adhere to the terms of the license in question. You can find basic compliance information and get licensing help on our license and legal considerations page.
Click here FFmpeg official website.
Click here a video how to use it.