[Kdenlive-devel] movit in kdenlive build script

Vincent PINON vincent.pinon at laposte.net
Mon Mar 17 17:44:24 UTC 2014

The days after Kdenlive+Movit was shown at fosdem, I have been trying to
import the functionality with a smoother transition : implementing a
soft check and disabling GLSL filters if unsupported... but I rapidly
went out of time and let this work near the idea state :-(
Movit integration as it is has impacts in many parts of the code (OpenGL
context everywhere a monitor/renderer is called), whereas in OpenShot
there is only a GLSL widget... the one JBM had imported in refactoring
branch last year! Would it be a good option ?
I think supporting lower end machines is still something to take into
account : on recent gadgets (Atom, ARM Chromebook) I still would like to
edit videos with my preferred sw! (up to who cares)

Anyhow, I see it as a very good thing that things change and go forward,
polishing can come on a good working basis.

BR to all,


Le 15/03/2014 17:49, Steinar H. Gunderson a écrit :
> On Sat, Mar 15, 2014 at 09:40:46AM -0700, Brian Matherly wrote:
>> Sorry, I was off by a digit. I should have said that my laptop suports 3.1
>> but Shotcut requires 3.2 to use movit filters.
> I don't know offhand what this requirement is for. Maybe GL_ARB_sync (I added
> a dependency on this to MLT at some point, but it would be relatively easy to
> add back the glFinish() fallback if somehow there are important cards that
> don't support this), but you don't need the rest of 3.2 for that. In any
> case, I'm running Kdenlive with Movit just fine with my 5th gen Intel
> (OpenGL 2.1 + extensions), so I don't think you have to worry about this for
> Kdenlive.
> Have you tried the current git?
>> As far as my own use cases, I have a capture rig in another room with a
>> sempron processor that I use for capturing from VCRs. I keep the whole rig
>> in another room so that I don't clutter up my office with multiple VCRs and
>> other equipment. That's a fairly old machine (approaching the 10 year
>> range), but it is perfectly suited for capturing DV with KDENLIVE. And I
>> would be disappointed if one day I upgraded KDENLIVE and it stopped
>> working.
> Well, notwithstanding that it might work just fine with your card anyway,
> I'm not sure if there should be a perpetual “right to upgrade”. Software has
> increasing system demands all the time, as they add more features. As an
> extreme example, you can't run Linux on 386 anymore :-)
> /* Steinar */

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