8K Support?

Tobiasz Karoń unfa00 at gmail.com
Tue Jul 28 17:48:49 BST 2020

I simply exported my pre-composited footage from Olive and the first 3/4 of
the video I've managed to edit and completed the project in Kdenlive.
I had some bad audio glitches from Kdenlive though, so I wasn't happy :(

I think Olive is going to implement Open Timeline IO too, but I don't know
what the status of that is.

On Tue, Jul 28, 2020, 15:44 <amindfv at gmail.com> wrote:

> Thanks, there's a lot of good info here! You mention switching from Olive
> to Kdenlive to finish an edit. Does Olive have a standardized file format?
> Was the switching process painful?
> Also, does Olive have a CLI?
> Tom
> El 27 jul 2020, a las 21:19, Tobiasz Karoń <unfa00 at gmail.com> escribió:
> I would personally not bet on MLT improving here. It's a very old
> framework with a legacy that's holding it back, and it doesn't seem to get
> much development done. I think it'd be best if video editors simply stopped
> considering it a good option. We have way too many "front-ends" to MLT all
> being held back by it's limited design.
> OpenShot tried to go beyond MLT, but... that apparently didn't go too well.
> I'm glad Kdenlive has started work to make it possible to implement a
> different back-end (maybe some cooperation with the Olive team could
> occur?) - and also implementing Open Timeline IO. I hope we can create some
> synergy between software using such open data exchange standards.
> Especially since they are used in the industry - which could help "serious"
> people consider using libre software.
> There's a long way to go before that's gonna be possible, but I think
> we're on a good track.
> I've been using Olive Video Editor for the past year or so (also limited
> to 8-bit color, at least for output - the processing is done 100% using
> GLSL so it's in a good position to develop further from that though - I
> even made my own effects for it). There's a rewrite going on that
> incorporated Open Color IO for flexible color management, also a node
> editor for fine grained control of all the processing being done (in the
> future this should allow for insanely powerful compositing but also reusing
> and sharing your own effects etc.), There's also a timeline proxy being
> implemented that stores frames in EXR files (an SSD for a scratch drive
> would be very recommended - I should test that more myself). I believe it's
> also ingesting input media (converting frames to EXR) not sure if that's
> mandatory though from my testing.
> That'll possibly allow for very responsive scrubbing. Also the rendering
> pipeline can use reduced resolution to speed up the compositing - I'm happy
> Kdenlive implemented that recently (in Kdenlive it's possibly more useful
> right now).
> So far the new Olive version is very unstable and can't be used to do any
> work really, but they're doing great progress with it and release updated
> builds very often (evey week or more frequently - so called Continuous
> Build).
> It's taking a lot of time, but it seems they can do without duct tape and
> build an open-source NLE that'll finally have a chance to not only have a
> nice UI and workflow, but also have all the basic and advanced features
> you'd want and let you use good cameras or deep-color CGI renders, composit
> and process that and get top-quality results with them. While also
> utilizing modern computer hardware in 100%.
> Now - Olive is not perfect and I had some serious issues with it, where I
> had to fallback to Kdenlive to finish editing a video as it's would crash
> every few seconds in projects longer than 20 minutes. I've finally found a
> build that doesn't have this bug and can work on it, but that was bad. The
> main developer seems to have an idea what the issue is though, I've worked
> with him to solve this.
> Olive's 0.1 version is the current "stable alpha" that I use - it's very
> limited in effects compared to Kdenlive (they are more reliable and not
> redundant though), but it's responsive and I like the editing tools a lot.
> When I edit my videos I always need at least 2 audio tracks in sync, and
> min. 2 composited images with chroma keying.
> In Blender VSE I had to train myself to cut in a very specific way to keep
> everything in sync (manually making sure I keep the sync between strips)
> because it had no way to link strips together, only group them into
> meta-strips (Olive has that option too - Nesting).
> In Kdenlive I always had issues importing my multiple audio tracks and
> even though linking works, the editing tools never worked for me as well as
> they do in Olive.
> Also - in any libre NLE I tried (all were heavily CPU-bound and
> single-threaded) compositing 2 or more 1080p layers dropped preview
> framerate to 15-20 FPS, and if you add a blur effect - it goes below 10.
> Olive can do this in realtime thanks to OpenGL if the files are not too
> high quality (I've recently started encoding H.264 proxy files) - seems
> that decoding 15Mbps H.264 is a bottleneck in Olive, and it's default
> Protest proxy files take ages to encode and are insanely big.
> I'm sorry - I think I went completely off-topic...
> It's very late, I should go to sleep :D
> Good night!
> - unfa
> On Tue, Jul 28, 2020, 01:29 <amindfv at gmail.com> wrote:
>> Agh this sucks! I did read this in the mlt docs but at the time it wasn't
>> limiting what I was doing... I will ask on the MLT list if there's any work
>> being done on this.
>> El 27 jul 2020, a las 14:44, Tobiasz Karoń <unfa00 at gmail.com> escribió:
>> MLT (and hence all software that depends on it) is hard-coded for 8-bit
>> color. It was created for TV broadcasting, not video editing really.
>> I am not sure about Blender VSE nowadays - maybe that one allows working
>> with deep color?
>> On Mon, Jul 27, 2020, 13:14 <amindfv at gmail.com> wrote:
>>> Does Kdenlive/MLT not support 10-bit color?
>>> El 25 jul 2020, a las 19:35, Tobiasz Karoń <unfa00 at gmail.com> escribió:
>>> Out of curiosity: what would you need 8K for?
>>> And also - wouldn't you need 10-bit color too?
>>> - unfa
>>> sob., 25 lip 2020 o 19:02 Almond Joy <almondjoyix at gmail.com> napisał(a):
>>>> Hi,
>>>> Is your video editing software 8K compatible?
>>>> Thank You
>>> --
>>> - Tobiasz 'unfa' Karoń
>>> www.youtube.com/unfa000
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