About the capability of libargus

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
1

Hi Sir,

Our camera chip only support the MIPI CSI2 YUV422 8-bit data format.
We plan to use the data format (YUV422 8-bit) for transfering Bayer RAW10 image to Jetson AGX Orin.
Could we apply the ISP processings (ex: AWB, AE, Demosaic, etc.) on the Bayer RAW10 images by the Libargus ?

BR,

Jeff Liao

3

hello qustion,

according to Camera Architecture Stack, you can only utilize Jetson ISP via CSI interface.
Orin series were using T_R16 to handle Raw10 formats. please see-also Orin TRM for [2.4.5 RAW Memory Formats]. the data is in MSBs and LSBs are replicated from MSBs.
since YUV422 8-bit stands for 16-bpp (bits per pixel) formats, are you going to simulate the data formats as Raw10?

4

Yes ! Our camera chip will use MIPI CSI2 “YUV422 8-bit” as data payload to transfer the RAW10 image data.

5

hello qustion,

we’ve never test it before, please give it a try for transferring RAW10 image data.

6

Hi Sir,

From the following investigation, we know that Libargus could not enable the ISP function to process the RAW10 image data which sent by MIPI CSI2 YUV422 8-bit data type from camera, right ?

  1. From nvidia-oot\drivers\media\platform\tegra\camera\vi\vi5_formats.h, we know that Libargus will use T_R16 memory foramt to handle the RAW10/RAW12 image data.
  2. From “Table 7.20 RAW Memory Formats” of Orin Series System-on-Chip Technical Reference Manual, Only RAW MIPI CSI2 data type could be coverted as T_R16 memory format.
7

hello qustion,

so.. you should transferring it as RAW10 image data.

8

Hi Sir,

Confirm your answer again.

Do you mean that the camera should tranfer the RAW10 image data by RAW MIPI CSI2 data type for Libargus to do ISP processing ?

9

hello qustion,

yes, Libargus only support bayer raw contents for ISP processing.

10

Hi Sir,

Does the Libargus support that tranfer the RAW16 image data by RAW MIPI CSI2 RAW16 data type for Libargus to do ISP processing ?