TDA4AL-Q1: ISP conversion tool from raw to yuv

Hi Taylar,

Taylar Huang said:

Could you help to confirm if TDA4AL has "memory to memory processing" to do "raw to yuv" conversion?

Yes, that is supported.

Actually, in your current system, ISP has always been working in the "memory to memory processing" mode.
The capture node saves the raw images in memory and then VISS kernel takes the raw images from memory frame by frame.

Hi Gang,

How to use the function? Can you provide the sampe codes or the related tools?

Hi, Gang,

Could we use app_single_cam in test mode to input raw data for ISP simulation with each tuning?

We noticed that the IMX390 sample data is available under:
psdk_rtos_ti_data_set_10_01_00\test_data\psdkra\app_single_cam\IMX390_001

Thanks for your support.

Hi YL,

yl chen said:

Could we use app_single_cam in test mode to input raw data for ISP simulation with each tuning?

If you are talking about running single-cam app in PC emulation mode for ISP simulation, then, yes, it is supported by SDK.

Hi, Gang,

Thanks your feedback.

But, could we run in Linux + RTOS mode with app_single_cam in test mode?

yl chen said:

But, could we run in Linux + RTOS mode with app_single_cam in test mode?

What do you mean by test mode?

Hi, Gang,

In app_single_cam_main.c, code path on: \rtos-build\vision_apps\apps\basic_demos\app_single_cam.
We find the function of read_test_image_raw in test_mode.

Could you help to check this function is match on our request.

Thanks.

Hi YL,

yl chen said:

We find the function of read_test_image_raw in test_mode.

That should be for reading a sensor input raw image when there is no camera actually connected.

e.g., disconnect your camera and copy one sensor raw image there with the expected name, then start the single-cam app normally.
Single-cam app will have trouble getting to the camera and use the raw sensor image as ISP input.

yl chen said:

Could you help to check this function is match on our request.

I suppose your would need to process more than a single frame.

BTW, if I recall correctly, single-cam app in PC emulation mode supports processing multiple input raw image frames.

https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/latest/exports/docs/vision_apps/docs/user_guide/group_apps_basic_demos_app_single_cam.html#autotoc_md45

Hi, Gang,

Thanks your feedback.

Our customer has a question — do you have a single-cam app that can run in RTOS emulation mode?
Also, does app_viss run in RTOS emulation mode?

Hi YL,

yl chen said:

do you have a single-cam app that can run in RTOS emulation mode?

Yes, that is what I mentioned above -- "single-cam app in PC emulation mode supports processing multiple input raw image frames".

If you follow the link above, you should be able to try it out.

yl chen said:

Also, does app_viss run in RTOS emulation mode?

Yes, that is also supported.

All VPAC TIOVX kernels can run in PC emulation mode.

Hi TI experts,

We are going to use PC emulation mode to do this task (RAW to YUV).

We follow up procedures from TI web site for setting up PC emulation mode environment,

At first step, "Step 1b: Download and Install PSDK RTOS Add-on to run in PC Emulation Mode (Optional, only needed for PC emulation mode)"

We had sent request access for PSDK RTOS Add-on Packages downdload,

Would you please help us to appove this request access?

Request account :  MayHYHuang@fih-foxconn.com

Thanks