Cinelerra is the most advanced non-linear video editor and compositor for Linux. Cinelerra also includes a video compositing engine, allowing the user to perform common compositing operations such as keying and mattes. Cinelerra includes support for very high-fidelity audio and video: it processes audio using 64 bits of precision, and can work in both RGBA and YUVA color spaces, using floating-point and 16-bit integer representations, respectively. It is resolution and frame rate-independent, meaning that it can support video of any speed and size.

Content Samurai 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.
OK, as what we use in our office, bearing in mind that we need to do rapid editing and splicing of 1080p video from two fixed point cameras, we use http://www.womble.com/ DVD Wizard. The cameras (yes two) get plugged in, the files are dropped on the time lines and within seconds we can start editing. Moving through the files, editing and splicing, is fluid and quick. Rendering the final product is, of course dependent on format as you’d expect but we tend to batch our work and let the jobs run overnight.
That said, I am also long time ‘nix user (from before we had the GUI) and other OS. Linux has its place but fast video editing isn’t one of them. My office needs to edit about 3 hours of video every day, splicing together the scenes from two fixed cameras. There is some Linux software that might do it, but it is just too slow, awkward and buggy to use. We use Womble’s DVD Wizard software on Windows on that. It’s not expensive, good support and very fast to use even on lower spec hardware.
I usually edit short videos from my life like play with kids, travel and bike rides, and sometimes do software project demos and tutorials. I tried all major tools in linux for video editing. Blender seems to be the most feature rich and consistent. It allows me to handle 4k video on my oldish laptop. It always feels so good that I buy its future for 20-50 bucks time to time. See More
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.

Even though Olive is in the early stages of development (version 0.1.0 Alpha at the time of writing this article), some users are already using it to produce content on a regular basis, and its developers are making rapid progress, which is evident from their activity on GitHub. Hopefully, they’ll be able to keep up the current pace and give all Linux users the video editor they deserve.

A non-linear editing system (NLE) is a video editing (NLVE) or audio editing (NLAE) system which can provide editing method for video clips or frams. You will be able to access any frame in a video clip. Non-linear editing is done for film and television post-production. However, the cost of editing system gone down and non-linear editing tools (including software) are now within the reach of most home users.
There’s often this misconception that there are not that many video editing software for Linux out there — however, this is not the case. With the growing popularity of Linux-based operating systems, software development companies have no choice but to focus on making software specially designed for Linux distros. Accordingly, you can find several video editors on the internet for almost any Linux distribution that you are using.
Ubuntu, and Linux in general is not known as the go-to platform for multimedia production. Instead, Apple Mac systems are probably the most popular systems for graphic designers, video editors, and music production specialists, with Windows PCs coming a close second. But Linux also has a lot of good stuff for video editors, it’s another thing that most people don’t know it. So here is a collection of best video editing software for Linux in 2018.
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I've a few more things to add to this review, which I will over the next few days. I've published it now because "imperfect action is always preferable to perfect inaction" so, while the spiders get to work on this I'll have a break and fill you in with more stuff very soon. In the meantime, just got and get the 7 day free trial by clicking the BIG SPINNY orange button that I took ages to animate for you - it's a total no-brainer. If you don't like it, cancel - zero risk. If you do, you will thank me (but ONLY if you take action and start making some bloody videos, alright?)