VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV

[koen81]

Dear Sir,

Have been trying to get your amazing project up and running on a Nvidea Jetson Nano, combined with a RPi Cam v2 (supported out of the box).

When trying to run the speed-cam.py I get the VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV.

So have been researching the error.

Things I have checked:

v4l2-ctl -d /dev/video0 --list-formats
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'RG10'
Name : 10-bit Bayer RGRG/GBGB

When testing the camera with GStreamer the camera is working correctly (appears under /dev/video0;

(Source: https://www.jetsonhacks.com/2019/04/02/jetson-nano-raspberry-pi-camera/)
gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM),width=3820, height=2464, framerate=21/1, format=NV12' ! nvvidconv flip-method=0 ! 'video/x-raw,width=960, height=616' ! nvvidconv ! nvegltransform ! nveglglessink -e

So it appears that most probably I will have to build OpenCV with Gstreamer enabled:
(Source: https://devtalk.nvidia.com/default/topic/1001696/jetson-tx1/failed-to-open-tx1-on-board-camera/post/5117370/#5117370)

But then the question is do you consider supporting GStreamer Pipeline in your application?

Kind regards

Koen

[pageauc]

Sorry for the delay. I have no problems implementing gstreamer support in speed-camera. Hear is an example of receive code for opencv. https://stackoverflow.com/questions/51539706/convert-gstreamer-pipeline-to-opencv-in-python
Currently I don't have ip camera but could setup a gstreamer sender source using another RPI. Summer is a busy time. Let me know if you are still interested and would be willing to do some testing. Regards Claude ...