Since the movie is displayed at the top, it is possible to cut out the image crisply by designating the start position and the end position while checking the actual video with the keyboard and mouse.

The screen of LosslessCut is simple like this. GitHub - mifi / lossless-cut: Cross platform GUI tool for lossless trimming / cutting of videos using ffmpeg In such a case, without having to lose the original image quality, it is easy to write out only the necessary parts of the video easily ' LosslessCut'Is published on GitHub. In such a case, if you cut out only the necessary part of the video, you can save the capacity, but in some cases the picture quality will degrade at the time of cutting out. It is becoming everyday that movie files captured by the camera's image quality has improved by more than 1 GB, and there are many people who are struggling to handle and store data. 21:00:00 'LosslessCut' capable of lossless cutting on Windows, Mac and Linux without impairing the quality of video files

Losslesscut.