Hi
veye_mipi_i2c.sh is not working for me

pi@pi:~/raspberrypi/i2c_cmd/bin $ ./veye_mipi_i2c.sh -b 6 -w -f daynightmode -p1 0xFE
w daynightmode is 0xfe
pi@pi:~/raspberrypi/i2c_cmd/bin $ ./veye_mipi_i2c.sh -r -f daynightmode
r daynightmode is 0xff

Any write operation is not set.

I get this error ./camera_i2c_config

pi@pi:~/raspberrypi/i2c_cmd/bin $ ./camera_i2c_config
setting GPIO for board revsion: d04170
Failed: don't know how to set GPIO for this board! Type is 17
Use i2c-10 for the sensor (-y 10)

@veye_xumm
I am not talking about previewing the frame. I am talking about simply reading the frame. No processing.

Here is the example with sample4:

import numpy as np
import cv2 as cv
import os
import time

cap = cv.VideoCapture('v4l2src device=/dev/video0 ! video/x-raw, format=NV12, width=1920, height=1080, framerate=30/1 ! videoconvert ! appsink', cv.CAP_GSTREAMER)

if not cap.isOpened():
    print("Cannot capture from camera. Exiting.")
    os._exit(0)

last_time = time.time()
frame_count = 0

while True:
    ret, frame = cap.read()
    if not ret:
        break

    frame_count += 1
    this_time = time.time()

    if this_time - last_time >= 1.0:
        fps = frame_count / (this_time - last_time)
        print(f"FPS: {fps}")
        last_time = this_time
        frame_count = 0


cap.release()
cv.destroyAllWindows()

Simply reading the frame is currently only getting 15 FPS on ROC-RK3588S-PC. I believe this is a driver issue with NV12.

@veye_xumm

If I use NV12 as described in sample4 I can only read frames with max 15FPS from the camera. This will not work for our application.

Can you show me an example which can read frames with 30FPS?

@veye_xumm please help

@veye_xumm

Did you have any chance to check the samples

v4l2_opencv_show1.py
v4l2_opencv_show2.py
v4l2_opencv_show3.py

with ROC-RK3588S-PC and IMX462?

@veye_xumm

Only format=NV12 (v4l2_opencv_show4.py) works with OpenCV but it requires videoconvert which is very slow.

I want to use format=UYVY (v4l2_opencv_show2.py) but it does not work with
ROC-RK3588S-PC and IMX462. I believe it is a problem with the driver for ROC-RK3588S-PC. The same code with format=UYVY works with Raspberry PI 4.

@veye_xumm Please help.

v4l2_opencv_show1.py
v4l2_opencv_show2.py
v4l2_opencv_show3.py

Do not work with ROC-RK3588S-PC and IMX462.

Hi @veye_xumm
Do you know why UYVY does not work from the examples?

I did some more tests and tested all the examples from https://github.com/veyeimaging/rk35xx_firefly/tree/main/linux/samples/opencv/veye camera

Files 1-3 do not work. No frames are shown. Only v4l2_opencv_show4.py works but it only reads with 15 FPS.

Can you confirm that the python opencv examples 1-3 work with ROC-RK3588S-PC and IMX462 ?

@veye_xumm
Yes please see my examples.

camera.open(
        "v4l2src io-mode=dmabuf device=/dev/video0 ! video/x-raw, format=(string)UYVY, width=(int)1920, height=(int)1080 ! appsink",
        cv::CAP_GSTREAMER);

Does not work. I can open the camera but the frames are always empty.

firefly@firefly:~$ GST_DEBUG=3 gst-launch-1.0 v4l2src io-mode=dmabuf device=/dev/video0 ! video/x-raw, format=UYVY, width=1920, height=1080 ! appsink                 Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
0:00:00.517057017 46983   0x5597da8c60 WARN                    v4l2 gstv4l2object.c:4735:gst_v4l2_object_probe_caps:<v4l2src0:src> Failed to probe pixel aspect ratio with VIDIOC_CROPCAP: Invalid argument
New clock: GstSystemClock
0:00:00.517846562 46983   0x5597da8c60 WARN                    v4l2 gstv4l2object.c:4528:gst_v4l2_object_get_crop_rect:<v4l2src0:src> Failed to get default crop rectangle with VIDIOC_G_SELECTION: Invalid argument
0:00:00.517940188 46983   0x5597da8c60 WARN                    v4l2 gstv4l2object.c:3278:gst_v4l2_object_reset_compose_region:<v4l2src0:src> Failed to get default compose rectangle with VIDIOC_G_SELECTION: Invalid argument
0:00:00.522044833 46983   0x5597da8c60 WARN          v4l2bufferpool gstv4l2bufferpool.c:850:gst_v4l2_buffer_pool_start:<v4l2src0:pool0:src> Uncertain or not enough buffers, enabling copy threshold