Avidemux for Mac is a video editing and encoding app. It is not available from the App Store but is on many download sites. Avidemux for Mac installs easily.
At its core, Avidemux for Mac is designed to allow you to cut a larger video into a smaller one, although this is not a full-featured video editor. Avidemux for Mac also provides encoding capabilities, converting videos from one codec to another. Avidemux for Mac can also act as a filter, applying specific filter effects to a video clip (although the filter effects are somewhat limited compared to much more expansive commercial packages). The app supports the most common Mac video formats, including AVI, MP4, ASF, and a few others. A scripting language is built into Avidemux for Mac that allows for batching of jobs, as well as repeating common processes. The interface is simple to work with and you can start using Avidemux for Mac within five minutes, thanks to the layout of the windows and options.
We used Avidemux for Mac for a few tasks. The first was simply slicing up a vacation video and presenting a shortened version, and it handled this task well. We then applied color equalization to a few scenes, and used the crop filter to zoom in and out in others. Finally, we saved the video in several formats. Avidemux for Mac was easy to use throughout all these tasks and we had zero issues with it.