Avidemux is a free tool for editing and converting video files. It works similarly to another popular movie editor - VirtualDub. Avidemux allows to quickly cut fragments from a movie and to convert files in AVI, MPEG, MP4 and ASF format.
The program has a very simple and intuitive interface that takes only a few minutes to decode and get acquainted with all the features. In the side panel you can find information on decoding - you can choose audio and video codecs for an outcome file. In the bottom part you can find standard navigation buttons along with markers to set the beginning and the ending of a chosen fragment. More advanced features and filters can be found in the bar in the upper part of the window.
Avidemux allows to operate on frames by pasting, deleting and changing them, along with applying filters. All the filters that are available are divided into categories so you can easily and quickly find the one you need. You can find groups of filters such as transformations, alternations, colours, blurs, sharpening, subtitles and more. Thanks to them you can add black frames around the screen, add your own watermark in a chosen place on the screen, add effects, set saturation filters or rotate the screen by a chosen angle. You can also improve quality of a film by applying filters that remove blurs, adjust contrast and sharpen the images.
The program can be also used to apply the subtitles and add them to a movie file so you don't have to worry about not being able to display subtitles with your video player, as they become an integral part of a film.