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====== VIM3 OS08A10 MIPI Camera ======

===== Introduction =====

This document mainly introduces [[https://www.khadas.com/product-page/os08a10-8mp-camera | 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.

===== Hardware Connection =====

<WRAP important >
The reverse connection will burn the camera, please check the connection of the picture carefully before connecting.
</WRAP>

{{/products/sbc/common/accessories/docs-vim3-camera-os8a10.png?600|docs-vim3-camera-os8a10}}


===== For 5.15 kernel =====

Please check [[products:sbc:vim3:add-ons:vim3-mipi-camera|]].

===== For 4.9 kernel =====

==== Guvcview ====

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

{{/products/sbc/common/accessories/mipi-guvcview-icon.png|mipi-guvcview-icon}}

The name of the MIPI camera is ''Juno R2''.

{{/products/sbc/common/accessories/mipi-guvcview-setting.png?600|mipi-guvcview-setting}}

The resolution is set to ''1920x1080'' and the RGB format is ''BGR3-BGR3''.

{{/products/sbc/common/accessories/mipi-guvcview-seccess.png?600|mipi-guvcview-seccess}}

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

==== Command Line ====

=== Control IR-Cut via V4L2 ===

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

== Disable status == 

```shell
$ 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
```

== Enable status ==

```shell
$ 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
```

=== Record Video via Gstreamer ===

```shell
$ 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''.

==== Demo Source Code ====

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

=== Install Dependencies ===


```shell
sudo apt install libopencv-dev python3-opencv
```

=== Python ===

```python 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()
```

<WRAP info >
Please modify the number of the open camera according to the camera node.
</WRAP>

==== C++ ====

```c++ 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;
}
```

== Compile == 

```shell
$ 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
```

== Run ==

```shell
$ ./mipi /dev/videoX
```

===== See Also =====

  * [[pp>os08a10-8mp-camera|Buy OS08A10 8MP Camera]]
  * [[dl>products/add-ons/os08a10/|OS08A10 Hardware Documentations]]
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