TDA4VM: ISP / 2a not applying to multiple cameras

Hi Darshan,

DARSHAN S said:

How can we enable the isp for both cameras ??

Could you please refer to the multi-cam app in SDK?

https://git.ti.com/cgit/processor-sdk/vision_apps/tree/apps/basic_demos/app_multi_cam

Hi Gang Hua ,

We went through the multicam application but could not figure how to apply the isp/2a based on number of cameras , we are currently using 2 cameras but will later use 4 cameras .

can you please help us out here ?

Thanks,

Darshan S

Hi Darshan,

DARSHAN S said:

We went through the multicam application

I suppose each camera has its own VISS and AEWB nodes.

AEWB nodes are configured in https://git.ti.com/cgit/processor-sdk/vision_apps/tree/modules/src/app_aewb_module.c

VISS nodes are configured in https://git.ti.com/cgit/processor-sdk/vision_apps/tree/modules/src/app_viss_module.c

DARSHAN S said:

but could not figure how to apply the isp/2a based on number of cameras ,

I am not familiar with s/w details.
What kind of issues/questions do you have?

Hi Gang Hua,

We are able to stream 2 cameras but our 2a/isp is applied to only one camera , we have generated dcc bins for our camera sensor and added them sensor handle.

The the dcc bins are not being applied to the second camera ? how to enable it ?

Thanks ,

Darshan S

DARSHAN S said:

The the dcc bins are not being applied to the second camera ? how to enable it ?

I suppose you would need to follow the multi-cam app example above to set up your VISS and AEWB node.

At run time, AEWB node sends the 2A information to VISS node so that right tuning parameters are used in VISS node.

https://git.ti.com/cgit/processor-sdk/imaging/tree/kernels/aewb/arm/vx_aewb_target.c?h=main#n973

You probably should check in your viss kernel for the 2nd camera if AEWB information has been received properly.