Avidemux is a simple tool for simple video processing tasks. The keyword here is simple: it does not offer tools like a timeline, multitrack editing, you cannot freely move or splice audio and video clips from various sources. However, Avidemux allows you to do elementary things in a very straightforward way.

For the purpose of NOJHL uploads, we are only really interested in clipping a small, specific segment of the original camera footage  prior to uploading. The important feature of this process is preserving the original HD quality of the clip for post game review. 
The program download links are listed below, with both Windows and Mac versions.