Yes, FFmpeg is far from just being some plain copy or convert command. It is packed with powerful features and, in fact, sits in the background behind many fancy GUI applications, with FFmpeg during the work in the background.
The linked article discusses how FFmpeg can perform the following features:
- Playing a Video (yes, really!)
- Get Media Information
- Record Your Screen
- Extract Images From a Video
- Convert Images Into a Video
- Convert a Video to MP3 or GIF (or other video formats)
- Add Subtitles to a Movie
- Rebuild a Video’s Index Without Transcoding
- Resize Videos
- Trim and Crop Videos
Some of these functions can consume a lot of CPU and memory resources, so it is also worth having a look for versions of FFmpeg that specifically use the GPU for extra horsepower.
As one of my readers commented, when it came to malware, rather try to use existing OS tools to do what you need to. FFmpeg is one such tool when it comes to all things video and audio.
See https://www.howtogeek.com/tricks-you-can-do-with-ffmpeg-on-linux