RK3288 + ov13850 camera module => RAW

macdam

Hi,

Is there a way to retrieve RAW images from the camera module using android 5.1?

many thanks,

zhansb

have a look at  : hardware/rockchip/camera/CameraHal/

macdam

Is this the path to the driver sources or a location on where I can find a temporary raw file?

zhansb

grep the “raw” keyword， you can find out and analys it by youself

Pup-Xav

Hi.
Like Macdam, I'm also looking for RAW format.
As a java/android developer, i'm not satisfied by Zhansb reply.

calling camera1 api  :

1. camera.getParameters().getSupportedPictureFormats()

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returns only one value ==> 256 which is the JPEG format as documented in android SDK (https://developer.android.com/re ... cs/ImageFormat.html)

Is there any plan to support RAW/YUV format ?
Is there any workaround to get this format?

Pup-Xav

I was able to get a "raw" (YUV422)  picture with android 5.1 running on a rk3288.
The Camera.takePicture() method takes a callback for raw as second parameter.

1. camera.takePicture ( shutterCallback, rawCallback, jpegCallback );

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This callback will return a null byteArray, unless you explicitly add a buffer for raw image .

1. addRawImageCallbackBuffer.invoke(camera, bytes);

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Surprisingly,  the method is public but not exported, so you cannot call it directly.
The pseudo-code below demonstrate how to call it by reflection.

1. ...
   
2. byte[] bytes = new byte[100000000]);
   
3. android.hardware.Camera  camera = Camera.Open();
   
4. ...
   
5.    try {
   
6.         final Method addRawImageCallbackBuffer =
   
7.                 camera.getClass()
   
8.                        .getDeclaredMethod("addRawImageCallbackBuffer",
   
9.                                           byte[].class);
   
10.         addRawImageCallbackBuffer.invoke(camera0, bytes);
    
11.     } catch (Exception e) {
    
12.         Log.e("RNG", "Error", e);
    
13.     }
    
14. ...
    
15. camera.takePicture ( shutterCallback, rawCallback, jpegCallback );
    
16. ...
    

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For reference : https://stackoverflow.com/questi ... and-raw-takepicture

chao98052

I have similar need for raw preview format. Currently preview only support NV21 and Yv12.