[Cin] Fwd: New Topic

[Andrew Randrianasulu]

On Wed, Nov 13, 2024 at 9:01 PM Phyllis Smith via Cin <
cin at lists.cinelerra-gg.org> wrote:

> Anyone familiar with this package? Cincity uses CinGG but obviously we
> all use other packages for specific things?
> ---------- Forwarded message ---------
> From: Cinelerra GG - Forum <forum at cinelerra-gg.org>
> Date: Wed, Nov 13, 2024 at 5:41 AM
> Subject: New Topic
> To: <phylsmith2017 at gmail.com>
>
>
> Hello phylsmith2017 at gmail.com!
> New topic has been created on your subscribed forum - Miscellaneous
> <https://www.cinelerra-gg.org/forum/forum-miscellaneous/>.
>
> *Help on slowmoVideo*
>
> I need to slow down a clip which has been recorded at 30 FPS.
>
> slowmoVideo is very interesting as it uses the optical flow technology for
> interpolating frames like respeedr does. And it uses FFMpeg.
>
> It can produce super fluid video. It can even be enhanced by a module to
> use the GPU efficiently.
>
> Unfortunately I have problems and at Github no one is answering to this
> technical issue (maybe because the people spammed around in the past). Does
> anyone of you have the possibility to take a look at it?
>
> My debian package installs perfectly and starts without issues. I can open
> the clip but on render it crashes. Using the command line I get this error:
> Have OpenCL: true useOpenCL: true true 1 1 terminate called after throwing
> an instance of 'cv::Exception' what(): OpenCV(4.6.0)
> ./modules/video/src/optflowgf.cpp:1120: error: (-215:Assertion failed)
> _flow0.size() == prev0.size() && _flow0.channels() == 2 && _flow0.depth()
> == CV_32F in fun...
>
>

hm, something between OpenCL (API to access GPUs, mostly) and openCV
(computer vision+++ package/framework)

is OpenCL setup working for other things on this  host, like Darktable or
ffmpeg?


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