hi

On Tue, 20 Feb 2024 at 20:06, IOhannes m zmölnig <zmoelnig@iem.at> wrote:
On 2/20/24 17:50, altern wrote:
> This happens on windows 10 Enterprise with the latest PD with GEM installed
> via Deken. We also tried in another windows machine with similar results.


it *always* helps if you can state which exact platform you  are using,
not just which OS version (Pd-version, 32bit/64bit/...)

sorry, it is PD 0.54.1 for windows 64 bits, the portable version
 
in the case of [pix_record] (and [pix_video], [pix_image] and [model])
Gem uses a plugin-system for the actual backends.
this is great, since it allows you to use Gem even if your system does
not have e.g. quicktime4linux installed, but if you do have
quicktime4linux installed you can just use it.
unfortunately this complicates debugging a bit, as I do not know which
plugins have successfully loaded on your system.

when loading Gem, the available (and usable) plugins should be printed
with something like:
 > video record plugins: QT4L V4L2

what does it say on your machine?

GEM: video record plugins: PNM
GEM: video capture plugins: NDI VIDS decklink

and when I open the gem window it says

[pix_video]: backend #0='NDI' <--- DISABLED
[pix_video]: backend #0='VIDS' : videoInput
[pix_video]: backend #1='decklink' <--- DISABLED 

the complete gem startup says

GEM: Graphics Environment for Multimedia
GEM: ver: 0.94.git v0.94-843-gc6eff7f12
GEM: compiled  on Feb  5 2024
GEM: maintained by IOhannes m zmoelnig
GEM: Authors : Mark Danks (original version)
GEM: Chris Clepper
GEM: Cyrille Henry
GEM: IOhannes m zmoelnig
GEM: with help by Guenter Geiger, Daniel Heckenberg, James Tittle, Hans-Christoph Steiner, et al.
GEM: found a bug? miss a feature? please report it:
GEM: homepage https://gem.iem.at/
GEM: bug-tracker https://bugs.gem.iem.at/
GEM: mailing-list https://lists.puredata.info/listinfo/gem-dev/
GEM: compiled for MMX/SSE2 architecture
GEM: using SSE2 optimization
GEM: detected 4 CPUs
GEM: image loading plugins: magick SGI STB jpeg tiff
GEM: film loading plugins: DirectShow
GEM: image saving plugins: SGI STB jpeg magick tiff
GEM: model loading plugins: ASSIMP3 OBJ
GEM: video record plugins: PNM
GEM: video capture plugins: NDI VIDS decklink

thanks

enrike