FFmpeg

FFmpeg for Mac

App name: FFmpeg 3.3.4
App description: Audio and Video converter
App website: https://www.ffmpeg.org
The good: Free to use
The bad: None
Updated: October, 14 2017

ffmpeg-mac

A complete, cross-platform framework to decode, encode, transcode, mux, demux, stream, filter and play.
Contains a command line tool, streaming server, simple media player, and simple multimedia stream analyzer.

Download FFmpeg for Mac