SOLVED IMX178 roi problem - rpi5

sanlu

Hello,
I can't set proper roi on rpi5 and imx178 . Command history:

./media_setting_rpi5.sh mvcam -fmt RAW8 -w 3088 -h 2064
This is a Raspberry Pi 5.
camera name mvcam; width 3088; height 2064; media_fmt Y8_1X8; pixel_fmt GREY
CAM1 probed: media device is /dev/media2
set CAM1 finish, plese get frame from /dev/video0 and use /dev/v4l-subdev2 for camera setting
# v4l2-ctl --set-fmt-video=width=2600,height=2064 -d /dev/video0
# v4l2-ctl -d /dev/video0 --set-fmt-video=width=2600,height=2064,pixelformat=GREY --stream-mmap --stream-count=1 --stream-to=y8-2600x2064.raw
  VIDIOC_STREAMON returned -1 (Invalid argument)
# v4l2-ctl -d /dev/video0 --set-fmt-video=width=3088,height=2064,pixelformat=GREY --stream-mmap --stream-count=1 --stream-to=y8-2600x2064.raw
<

(data captured)

Second example:

# ./media_setting_rpi5.sh mvcam -fmt RAW8 -w 2600 -h 2064 -c 1
# v4l2-ctl --set-ctrl roi_x=100 -d /dev/v4l-subdev2
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! "video/x-raw,format=GRAY8,width=2600,height=2064, framerate=25/1" ! jpegenc ! filesink location=/tmp/test_roi100.jpg

no matter what "number" I set in "v4l2-ctl --set-ctrl roi_x='number'"
there is no effect on image - always roi begins at 0,0.
Script ./mv_mipi_i2c.sh -r -f roi -b 4
always return: r roi is 0,0,2600,2064

Second problem is "overflow" at 256 pixels in setting roi by mv_mipi_i2c.sh. Image captured after setting roi:

 ./mv_mipi_i2c.sh -w -f roi -p1 256 -p2 0 -p3 2600 -p4 2064 -b 4

Is the same when:

 ./mv_mipi_i2c.sh -w -f roi -p1 0 -p2 0 -p3 2600 -p4 2064 -b 4;

setting x-offset at maximus 248 pix works ok:
./mv_mipi_i2c.sh -w -f roi -p1 248 -p2 0 -p3 2600 -p4 2064 -b 4;

veye_xumm

@sanlu First example:
media_setting_rpi5.sh has internally called media-ctl and v4l2-ctl to configure the resolution. So there is no need to run v4l2-ctl after calling media_setting_rpi5.sh.
Try this:

./media_setting_rpi5.sh mvcam -fmt RAW8 -w 3088 -h 2064 -c 1
v4l2-ctl -d /dev/video0 --stream-mmap --stream-count=1 --stream-to=y8-3104x2064.raw

Second example:

The configuration of roi requires all 4 relevant parameters to be configured together, not just one. This will not take effect.

sanlu

@veye_xumm Your example at full resolution works fine. I don't want full resolution but width 2400px centered - it require ROI offseted by 344px, but after setting roi via mv_mipi_i2c.sh script (./mv_mipi_i2c.sh -w -f roi -p1 344 -p2 0 -p3 2400 -p4 2064 -b 4) image is offseted only 88px - offset is "modulo" 256px (i've send you images via e-mail).

Second example: How to set all 4 param in one command while "v4l2-ctl --set-ctrl roi_x " works on device /dev/v4l-subdev2 during "v4l2-ctl --set-fmt-video" works on /dev/video0 ?

veye_xumm

@sanlu

Sorry, I didn't explain clearly earlier.

Based on your requirements, I recommend not using mv_mipi_i2c.sh for configuration because it directly changes the settings inside the camera, but the v4l2 driver won't be aware of your parameter modifications.

The following three commands form a complete ROI configuration:

v4l2-ctl --set-ctrl roi_x=344 
v4l2-ctl --set-ctrl roi_y=0
v4l2-ctl --set-fmt-video=width=2400,height=2064

As for the module issue you mentioned, after performing the above configuration, use the following commands to verify the actual parameters inside the camera:

mv_mipi_i2c.sh -r -f roi -b yourbus
mv_mipi_i2c.sh -r -f version -b yourbus

Please send me the results once you've checked.

sanlu

@veye_xumm Results:

# ./media_setting_rpi5.sh mvcam -fmt RAW8 -w 2400 -h 2064 -c 1
This is a Raspberry Pi 5.
camera name mvcam; width 2400; height 2064; media_fmt Y8_1X8; pixel_fmt GREY
CAM1 probed: media device is /dev/media1
set CAM1 finish, plese get frame from /dev/video0 and use /dev/v4l-subdev2 for camera setting
# v4l2-ctl --set-ctrl roi_x=344 -d /dev/v4l-subdev2 
# v4l2-ctl --set-ctrl roi_y=0 -d /dev/v4l-subdev2 
# v4l2-ctl --set-fmt-video=width=2400,height=2064 -d /dev/video0
# ./mv_mipi_i2c.sh -r -f roi -b 4
r roi is 0,0,2400,2064 
# ./mv_mipi_i2c.sh -r -f version -b 4
version is C 01.36 and L 02.01

veye_xumm

@sanlu
Please download a new https://github.com/veyeimaging/raspberrypi_v4l2/tree/main/rpi5_scripts
Try

./media_setting_rpi5.sh mvcam -fmt RAW10 -x 344 -y 0 -w 2400 -h 2064 -c 1

then

mv_mipi_i2c.sh -r -f roi -b yourbus

sanlu

@veye_xumm Results below:

root@allsky2:~/raspberrypi_v4l2/rpi5_scripts# ./media_setting_rpi5.sh mvcam -fmt RAW10 -x 344 -y 0  -w 2400 -h 2064 -c 1
This is a Raspberry Pi 5.
Kernel version is 6.6.51, do not support unpacked format.
camera name mvcam; roi_x 344; roi_y 0;width 2400; height 2064; media_fmt Y10_1X10; pixel_fmt Y10P
CAM1 probed: media device is /dev/media1
set CAM1 finish, plese get frame from /dev/video0 and use /dev/v4l-subdev2 for camera setting
root@allsky2:~/raspberrypi_v4l2/rpi5_scripts# cd ../mv_tools_rpi/
/root/raspberrypi_v4l2/mv_tools_rpi
root@allsky2:~/raspberrypi_v4l2/mv_tools_rpi# ./mv_mipi_i2c.sh -r -f roi -b 4
r roi is 0,0,2400,2064

veye_xumm

@sanlu said in IMX178 roi problem - rpi5:

./media_setting_rpi5.sh mvcam -fmt RAW10 -x 344 -y 0 -w 2400 -h 2064 -c 1

Sorry , please pull a new update from github.

sanlu

@veye_xumm Ok - now "mv_mipi_i2c.sh -r -f roi" show right values, but main problem exists: image not begin at 344px but 88.
But problem exists only at "x" - I've tested image 1200x1200 offseted by 512 and "y" begins at right position

veye_xumm

@sanlu
This is indeed a bug, please refer to this link below to upgrade the camera firmware to version MV-MIPI-IMX178M_C1.44_L2.01_upgrade_20241121.bin.

sanlu

@veye_xumm
Perfect. Now is working as expected. Thanks!