PROCESSOR-SDK-J784S4: Adding new parameter to Object descriptor

Vineeth CN

Tool/software:

Hello TI,

Am facing an issue while adding new parameter in the object descriptor (Single cam app is getting hanged after creating LDC node). (tivx_obj_desc_t) in tivx_obj_desc.h file. Intention is I need have information like frame count , Analogue gain, exposure time etc as a part of object descriptor and pass this along with successive node and use it for our different logic's.

I even tried to add case statement for this in "vx_reference.c" file, attached that screenshot as well. But just only by adding new parameter in object descriptor (case statement commented in vx_reference.c file) itself application is getting hanged.

Please note single cam application is running fine after commenting newly added parameter in object descriptor.

using SD version 9.02 and comping tiovx for this.

Please let me know if you need any other information.

Thanks and Regards,

Vineeth

over 1 year ago

0 Nikhil Dasan over 1 year ago

TI__Guru* 86076 points

Hi,

This is a framework level change that is not suggested.

The object descriptor is the base for all the data objects used in the TIOVX framework and would be accessed at many places.

The change would not be straight forward.

Could you elaborate your usecase?

Regards,

Nikhil

0 Vineeth CN over 1 year ago

Prodigy 130 points

Hi Nikhi,

0 Vineeth CN over 1 year ago in reply to Vineeth CN

Prodigy 130 points

Hi Nikhil,

Thanks for the information. The use case what we were thinking is in any of our pipeline when we save the images, we need some of the meta data information's which is received from sensor like Frame count, AE parameters etc as part of the image save name. If we can add/tag these parameters as part of object descriptor we can extract it in any of our pipeline.

Thanks and Regards,

Vineeth

0 Nikhil Dasan over 1 year ago in reply to Vineeth CN

TI__Guru* 86076 points

Hi Vineeth,

Vineeth CN said:
Frame count, AE parameters

So are you able to extract these datas out of the capture node? Currently the timestamp variable is sent out this way in the obj_desc, but the capture node fills this information.

May I know how is your implementation?

Regards,

Nikhil

0 Vineeth CN over 1 year ago in reply to Nikhil Dasan

Prodigy 130 points

Hi Nikhil,

Sorry for the confusion, when I was trying to extract these data's I am getting error. Just want to understand from you is there any workaround for this.

Thanks and Regards,

Vineeth

0 Nikhil Dasan over 1 year ago in reply to Vineeth CN

TI__Guru* 86076 points

Hi Vineeth,

Could you help me understand what the error is and how have you implemented this?

What do you mean by extract the data? Where is it being fed from?

Regards,

Nikhil

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PROCESSOR-SDK-J784S4: Adding new parameter to Object descriptor