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Kdenlive: an open-source video editor

kdenlive.org

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Re: Kdenlive: an open-source video editor

#191

Post by phosphophyllite »

quantummkv wrote: post #41
phosphophyllite wrote: post #7

Earlier quoted context omitted.

Linux desktop needs consistency and freedom (yes, open source desktop needs freedom). Freedom of updating and installing newer versions of software without waiting for maintainer/distro half of year to build new package (outdated next week because it's STABLE package). This is main problem of any linux desktop initiative - linux users get newer gimp after windows users. Hope snaps/flatpack/appimage solve this problem…

> Freedom of updating and installing newer versions of software without waiting for maintainer/distro half of year to build new package (outdated next week because it's STABLE package). You have this freedom. It is known as "compiling from sources". In fact GNU/Linux is the only big OS/ecosystem where you have this freedom. But like all other freedoms, you have to work hard for it.

This same freedom as mining ore for car - virtual thing. You actually can go to another side of universe (as far as light cone allows).

On windows you just can download the same program and use it without any compiling. And you can freely downgrade it if you want to. No compiling, no messing with repos, makeinstall, and randomly corrupted system.

Re: Kdenlive: an open-source video editor

#192

Post by linsomniac »

aleb wrote: post #174
linsomniac wrote: post #141

Within the last month I got an action cam and have started to edit videos to post on Youtube. Mostly "HOWTO" videos, because I've learned so much by watching HOWTO videos. I'm just finishing up a major remodel of my kitchen, with youtube videos being a large contributing factor to my success. Kdenlive I haven't tried yet, but is on my short list to try. I've been using LightWorks under Linux and it works pretty well.…

What gave you the impression Pitivi is abandoned?

I'd heard a few years ago that it was pretty problematic software, and when I went around looking at alternatives it was one of the least recently updated (latest stable release 17 months ago, according to Wikipedia). So maybe "abandoned" isn't the right word, but that was the impression I left with.

The problem I had when searching was that there was a ton of choice under Linux (my short list was 10), but researching them from that point is not easy. They pretty much all show the same screenshot (media, clip monitor, timeline, timeline monitor). But how do you tell: Is it reliable? Does it have the effects I'll need? Is it serious or a toy?

Normally, I'd have heard of some things and at least know a reputation for something in the field. But video editing is so foreign to my domain, that I've maybe heard one thing about the Linux options over the last decade. Mostly you hear about Final Cut vs. Adobe Premier.

Re: Kdenlive: an open-source video editor

#193

Post by linsomniac »

glenda wrote: post #139
linsomniac wrote: post #137

Earlier quoted context omitted.

I tried it recently, but it just segfaulted. System was running Ubuntu 18.04. Just FYI.

I got Resolve set up on Ubuntu 18.04 this morning - the trick for me was switching to the nvidia drivers, before that it segfaulted on my machine too.

That mostly seemed to be my problem, the 18.04 OpenCL causes Resolve to segfault. I grabbed the AMD "pro" Linux drivers, installed them (which was tricky, their provided scripts bombed out so I manually had to resolve a bunch of dependencies).

Once I got opencl installed and rebooted the machine, I was able to start Resolve and get into the main interface. It couldn't find a GPU though ("clinfo" showed one), I'm guessing that it really,truly does need an nVidia card. I brought home a card from work to try, just to see if it would make a difference, but someone put a AMD card into the box of a nVidia card.

I tried Resolve on my wife's Win10 laptop with Intel GPU, and it seemed to install and work no problem. Since I'm basically going to be using the machine for just editing when I'm editing, I may just set it up with Windows and call it done.

From some of the introductions I've watched, it looks like Resolve is the software I want. Lightworks has worked well, but Resolve looks like a space age rocket ship. I guess we will see...

Re: Kdenlive: an open-source video editor

#194

Post by jancsika »

shmerl wrote: post #155
jancsika wrote: post #150

Has there ever been an attempt to build a FLOSS video editor pinned to a single distro and a single piece of hardware (or at least single GPU)? It just seems like Linux cannot currently guarantee anything about the stability or even existence of GPU-acceleration on an arbitrary machine. So to start with that and then smear the software across multiple LTS versions of multiple distros seems like a perfect recipe for o…

General purpose GPU acceleration is accessible through standard APIs like Vulkan. If you mean specialized GPU video encoding / decoding, there is VAAPI, which is also pretty much supported on all GPUs and distros. But selection of particular codecs depends on the hardware.

No, I mean limiting support to X distro on Y arch with Z GPU. Any usage outside of those constraints is completely unsupported and isn't allowed to be added to an official bug report.

For example, let's say Ubuntu 18.04 LTS on x86_64 with GPU... (dunno, choose a decent one that has a respectable open source driver).

Here's my question-- how much more stable would such a video editor be than the extant ones that ship with general Linux support?

I'm asking because I see lots of reports that so-and-so crashes because the user installed from the ancient Debian package, or the Nvidia driver is garbage, or some library doesn't play well on some distro/arch/distro-arch-combo. I'm just curious how much of the eternal bugginess of Linux video editors can be ascribed to those problems vs. the more narrow problem of designing fast-and-stable video editing software.

Re: Kdenlive: an open-source video editor

#195

Post by shmerl »

jancsika wrote: post #194
shmerl wrote: post #155

Earlier quoted context omitted.

General purpose GPU acceleration is accessible through standard APIs like Vulkan. If you mean specialized GPU video encoding / decoding, there is VAAPI, which is also pretty much supported on all GPUs and distros. But selection of particular codecs depends on the hardware.

No, I mean limiting support to X distro on Y arch with Z GPU. Any usage outside of those constraints is completely unsupported and isn't allowed to be added to an official bug report. For example, let's say Ubuntu 18.04 LTS on x86_64 with GPU... (dunno, choose a decent one that has a respectable open source driver). Here's my question-- how much more stable would such a video editor be than the extant ones that ship…

I see no reason to support ancient drivers and ancient distros. Supporting recent enough ones is expected. But there is no point to limit architectures as long as given setup has GPU with enough functionality to provide hardware acceleration and drivers that expose that.

Re: Kdenlive: an open-source video editor

#196

Post by linsomniac »

dsego wrote: post #145
linsomniac wrote: post #141

Within the last month I got an action cam and have started to edit videos to post on Youtube. Mostly "HOWTO" videos, because I've learned so much by watching HOWTO videos. I'm just finishing up a major remodel of my kitchen, with youtube videos being a large contributing factor to my success. Kdenlive I haven't tried yet, but is on my short list to try. I've been using LightWorks under Linux and it works pretty well.…

Don't forget Shotcut.

I edited a video yesterday in Shotcut and it looks pretty good. I do seem to end up with a lot of glitches that I have to go back and clean up, usually repeated frames at clip transitions, though one seems to be repeated frames within a clip. I imagine it is something I'm doing, like how I drag the clips together? But I haven't had that problem in any other editor.

I think I'm sold on Davinci Resolve though. It's pretty sweet, extremely full featured, free for most uses and reasonably priced for the full kit ($300 IIRC. That adds the ability to do multi-GPU and have multiple users collaborating, plus 6K and 8K editing).

I had to upgrade my GPU though. My old one had 2GB and Resolve was like "Oh, that's ADORABLE!" It was a 5-6 year old computer though. I also put it under Windows, it just seems to run better there. I had battled for an hour to get to the point where it stopped segfaulting under Linux and started complaining about not enough video RAM. But now that Linux install is janked, something related to the AMD GPU packages. Probably not TOO hard a fix, since it was all .debs.

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