Right now there is one really serious competitor coming out with it’s brand new open source non linear video editing product. I am talking about Lightworks` Oscar winnig Editshare which has been released open source last year. Feel free to discover their website http://www.lightworksbeta.com/ and tons of professional features it has. Yes this is not intended for video editing noobies but this is going to become a really brilliant piece of software for Lin/Mac/Win. Right now only Win version is accessible but:
Blender is a fabulously sophisticated 3D computer graphics and animation creator. Check out the Blender gallery for a sampling of movies created with Blender. It supports a large range of high-end abilities such as ray-tracing, key-frame animation tools, object tracking, super nice character modeling, realistic physics for great liquid and smoke/mist/gas effects, and realistic movements of objects and characters, and excellent realistic light effects.
After briefly testing all the various open-source video editors I could find easily available for fedora 13, I came to the conclusion that kdenlive was the best fit. By and large most of the editors were plain unusable for more than 5 minutes or just had too many limitations. kdenlive has its own faults, including that its documentation is not always clear and one must refer to it constantly when figuring out the UI (hint: video tutorials were so useful to understanding the docs). Essentially, I can now do almost anything I need to with kdenlive now, but I would greatly appreciate it if the devs could improve rendering time, update the dvd creation wizard to support blu-ray, and add more rendering options (for example, ogv output does not support quality levels, only bitrates). As for stability, I saw several crashes when I was first exploring features, but none since.
This video editing software offers customizable layout support, a clip list, a multi-track timeline, automatic backup, keyframe special effects, and transitions. Are you using any unique file format or camcorder? Not a problem — Kdenlive supports almost everything available. It should also be mentioned Kdenlive supports Mac OSX and FreeBSD as well. Another important feature is the Proxy editing. This cool feature can automatically create low-resolution copies of your source clips to allow light-weight editing, and then render using full resolution.
When working a film convert it from movie format to a bunch of stills (you can render it so. I think andrew has a video on this). Make sure to do this in a unique directory because you get about 24 pics per second. The format for these pics should be png or if you want to do a lot of composting then OpenExr is the way to go but the files are bigger and might slow down and older machine. Think of it this way. PNG has 0-255 for each color of each pixel, whole numbers only. Try multiplying that by .1 and then by 1000 a few times and see what you get. The other system uses floating point math for each dot and that keeps it high quality. PNG works but don’t expect much in the way of high quality compositing.
This video editor has the ability to move things in the visual space straight in the viewer panel compared to the others where you need to change some value of x or y to scale or move things in your composition. This might not matter much in many cases but if you have a lot of elements moving or scaling throughout your scene, this is the fastest and a much more intuitive method than having to adjust the scale/position values of individual axes separately. This again is a big reason why I prefer an alpha (a damn good alpha) version of this software than a stable release of Kdenlive. See More
Audio and video clips can be linked together and managed as single clip. Another thing that I personally find useful is that Pitivi can be used in different languages and has a very extended documentation. Learning how to use this software is easy and doesn’t require much time. Once you get used to it, you will be able to edit video and audio files with high precision.
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Davinci Resove is another non open source video editor for linux, like Lightworks. It used to be a very excellent color grading software, and now, it's a great video editor as well. You can do all the basic editing and some of the advanced editing on the free version (multi-camera editing, 3D editing, motion blur effects, and spatial noise reduction, etc are only available on the paid version)
Vidnami is an online video creator software (application) that helps you create fast, easy and professional-looking videos within minutes. It allows you to insert articles into the software and it automatically creates a good-looking video using the text from the article you inserted. It can also add great images, video backgrounds and even text to speech voices.