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I'm trying to make a UI-3370CP-C-HQ R2 Camera work on a Coral DevBoard with gstreamer.

Since the camera is no standard v4l2 camera, I downloaded and compiled the ueyesrc gst plugin (https://github.com/atdgroup/gst-plugin-ueye) on the devboard.

In my application I need to have the frame as opengl textures and I'm stuck at building a working pipeline.

So far the only way I managed to get something from the camera is to save a frame as jpeg:

gst-launch-1.0 tee ueyesrc num-buffers=10 ! jpegenc ! filesinklocation=ueyesrc-frame.jpg

The pipeline example provided with ueyesrc gst-launch-1.0 ueyesrc ! videoconvert ! xvimagesink doesn't work in my case because there is no X-Server on the device (but Wayland)

gst-launch-1.0 ueyesrc ! videoconvert ! glimagesink returns the following error:

Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Got context from element 'sink': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayWayland\)\ gldisplaywayland0";
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstGLImageSinkBin:glimagesinkbin0/GstGLImageSink:sink: Failed to convert multiview video buffer
Additional debug info:
gstglimagesink.c(1741): gst_glimage_sink_prepare (): /GstPipeline:pipeline0/GstGLImageSinkBin:glimagesinkbin0/GstGLImageSink:sink
Execution ended after 0:00:00.486558117
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

With a standard USB webcam (Logitech HD Pro Webcam C920), gst-launch-1.0 v4l2src ! videoconvert ! glimagesink works fine.

I don't really understand what is going wrong or how to find more clues about it, I suppose I'm missing a conversion step in the middle but I don't know how to fix it. Does someone have an idea?

edit 1: it is indeed a conversion issue. I got it to work by specifying the format in the videoconvert caps: gst-launch-1.0 ueyesrc exposure=2 ! videoconvert ! video/x-raw,format=YUY2 ! glimagesink sync=False Although the CPU usage is super high (>90% on all 4 cores of the iMx8) and the framerate reach a max of 6.5 fps.

rang
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  • Can you share the output of "v4l2-ctl --list-formats-ext --device /dev/video1 " ? – Manoj Sep 23 '19 at 14:03
  • `sudo v4l2-ctl --list-formats-ext --device /dev/ueye/130__2-1__3370 VIDIOC_QUERYCAP: failed: Inappropriate ioctl for device /dev/ueye/130__2-1__3370: not a v4l2 node` – rang Sep 25 '19 at 12:14

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