Radxa camera 4k issue with Radxa Rockchip 5b+ board

#1

Hi everyone,

I’m working with a camera (Radxa 4k camera) on a Rockchip-based board (Radxa Rock 5B Plus), and I’m capturing images using the v4l2-ctl command. I’m trying to capture a 10-bit Bayer image . However, I’m unable to open or visualize the captured image properly.

Setup and Commands Tried

  1. Checked supported formats using:

v4l2-ctl --device=/dev/video0 --list-formats-ext

Output:


Type: Video Capture Multiplanar

[0]: 'RG10' (10-bit Bayer RGRG/GBGB)

[1]: 'BA10' (10-bit Bayer GRGR/BGBG)

[2]: 'GB10' (10-bit Bayer GBGB/RGRG)

[3]: 'BG10' (10-bit Bayer BGBG/GRGR)

[4]: 'Y10 ' (10-bit Greyscale)
  1. Captured raw frame:

v4l2-ctl --device=/dev/video0 --set-fmt-video=width=3864,height=2192,pixelformat=BA10 --stream-mmap --stream-count=1 --stream-to=frame.raw

This successfully created a frame.raw file in my current directory. It has file size of 10 MB.

Then used raw2tiff to convert in .tiff format.


raw2tiff -w 3864 -l 2192 -b 1 -d short -p minisblack -c none frame.raw frame.tiff

after that used imagemagic tool to convert it in .png format.


convert frame.tiff -auto-level output.png

but that image was just white noise image. I have attached the output image here.

output
output.png3864×2192 835 KB

Please give the suggestion. How to capture the proper image with this camera.
I have also enabled the DT overlay for radxa 4k camera using rsetup.

#2

I think you need to use rkmpp

#3

Thanks for your quick reply.

Can you tell me how to use that or you can also share any article , links or tutorial video to use rkmpp with radxa os for radxa 4k camera.

#4

I don’t think there is a need to explain this here, just search the forum and you’ll find how.