This document mainly introduces OS08A10 MIPI Camera. The first part of the document describes how to connect. The second part introduces how to use it under Ubuntu. The third part introduces how to use it under Android.

Please check

The desktop version has Guvcview pre-installed, find and open this application in the application list.

The name of the MIPI camera is Juno R2.

The resolution is set to 1920×1080 and the RGB format is BGR3-BGR3.

After the setting is successful, you can use the camera normally.

The test needs to be conducted in the framebuffer mode, and switch to the framebuffer mode through the keyboard combination of Ctrl+Alt+F1.

$ v4l2_test  -c 1 -p 0 -F 0 -f 0 -D 0 -R 1 -r 2 -d 2 -N 1000 -n 800 -w 0 -e 1 -I 0 -b /dev/fb0 -v /dev/video0

$ v4l2_test  -c 1 -p 0 -F 0 -f 0 -D 0 -R 1 -r 2 -d 2 -N 1000 -n 800 -w 0 -e 1 -I 1 -b /dev/fb0 -v /dev/video0

$ gst-launch-1.0 v4l2src name=vsrc device=/dev/video0 ! video/x-raw,width=1920,height=1080,framerate=60/1,format=RGB ! filesink location=.//test.rgb

The recorded video is saved in test.rgb.

In addition to this, you can also test the camera via program.

sudo apt install libopencv-dev python3-opencv

mipi-camera.py

import cv2 
 
if __name__ == '__main__':
 
    val = True
 
    cap = cv2.VideoCapture(0)
    cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1920)
    cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 1080)
 
    fourcc = cv2.VideoWriter_fourcc(*'XVID')
 
    out = cv2.VideoWriter("./test.avi", fourcc, 20.0, (640, 480), True)
 
    while val is True:
        ret, frame = cap.read()
        cv2.cvtColor(frame,cv2.COLOR_RGB2BGR)
        if frame is None:
            break
        else:
            out.write(frame)
            cv2.imshow("video", frame)
            k = cv2.waitKey(1) & 0xFF
            if k == 27: 
                break
 
    cap.release()
    out.release()

mipi-camera.cpp

#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>
#include <iostream>
#include <string>
using
namespace  cv;
 
using
namespace  std;
 
int main(int argc, char** argv)
{
    int count=100;
    string str = argv[1];
    string res=str.substr(10);
    VideoCapture capture(stoi(res));
    capture.set(CAP_PROP_FRAME_WIDTH, 1920);
    capture.set(CAP_PROP_FRAME_HEIGHT, 1080);
    while (count)
    {
        Mat frame;
        capture >> frame;
 
        if (frame.empty()) {
            break;
        }
        int h = frame.rows;
        int w = frame.cols;
        const char *name = "video";
        namedWindow(name, 0);
        imshow(name, frame);
        waitKey(30);
        count--;
    }
    return 0;
}

$ gcc -o mipi mipi.cpp -lopencv_imgproc -lopencv_core -lopencv_videoio -lopencv_imgcodecs -lopencv_highgui -std=c++11 -std=gnu++11 -Wall -std=c++11 -lstdc++ -I/usr/include/opencv4

$ ./mipi /dev/videoX

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