TDA4VM: mosaic

jialin xie

Part Number: TDA4VM

Hi! I use mosaic node to show srv view and front view. Now, I want to change view when I press the button. But I don't how to do.

Appreciate your guidance here.

over 4 years ago

0 Taekmin Lee over 4 years ago

Expert 1445 points

Hi.

Do you use custom SRV kernel to display SRV?

My solution is add a control function to the SRV kernel.
using control function, the key input of the main function can be transferred to the SRV kernel.

Regards,
Taekmin.

0 jialin xie over 4 years ago in reply to Taekmin Lee

Intellectual 260 points

The display module should be showed srv image and raw image from one camera at the same time.

I use mosaic node to show srv view and front view(from front camera), but I want change to right view(from right camera) or back view(from back camera) when I press the button.But I don't how to do.

0 Taekmin Lee over 4 years ago in reply to jialin xie

Expert 1445 points

Okay,

I understand that the mosaic node of tiovx is modified and used.

I recommended use the "tivxNodeSendCommand()" for key value transfer from the main.c of the APP to the kernel.
And add "control function" and register(in tivxAddTargetKernelByName()) control function in tiovx's mosaic kernel. (I checked SDK 8.0's mosaic node, it doesn't have control function)

After modify, you can check input key value in mosaic node.
now you can change what the mosaic node's Process function draws according to the input key value.

Regards,
Taekmin.

0 jialin xie over 4 years ago in reply to Taekmin Lee

Intellectual 260 points

Thanks a lot!

0 jialin xie over 4 years ago in reply to jialin xie

Intellectual 260 points

I found that init and create function of mosaic module in vision_apps/kernels/img_proc/hosts. And there is no example of tivxAddTargetKernelByName() in vision_apps/kernels/img_proc/host .Could you give some examples?

Appreciate your guidance here.

0 Taekmin Lee over 4 years ago in reply to jialin xie

Expert 1445 points

Hi,

Check the this file. "vision_apps/kernels/img_proc/r5f/vx_img_mosaic_msc_target.c"
you can find tivxAddTargetKernelByName() function.

Regards,
Lee.

0 jialin xie over 4 years ago in reply to Taekmin Lee

Intellectual 260 points

I tried to modify in c66. But I can't use r5f, because there is a camera driver supplied by other company. In the mean while, They just offered binary file of r5f. Can I use c66 to achieve? If I use c66, how to add tivxRegisterImgProcTargetC66Kernels() into main.c.

0 Taekmin Lee over 4 years ago in reply to jialin xie

Expert 1445 points

Hi,

Does the Mosaic kernel work in C66 core? I'm not sure about that.
Both the camera driver and the mosaic kernel operate on R5F, but I know it doesn't matter.

Regards,
Lee.

0 Brijesh Jadav over 4 years ago in reply to Taekmin Lee

TI__Guru**** 485995 points

Hello Lee,

Can you try setting target of the mosaic node to C66? I see the file ti-processor-sdk-rtos-j721e-evm-08_00_00_12\vision_apps\kernels\img_proc\c66\vx_img_mosaic_target.c. It seems to be supported on C66x. but may not be doing downscaling..

Regards,

Brijesh

0 jialin xie over 4 years ago in reply to Brijesh Jadav

Intellectual 260 points

Hi.

Because, vx_app_tirtos_linux_mcu2_0.out offered by the other company, and I found tivxImgMosaicNode run on mcu2_0. I want to know that when I add "STATIC_LIBS += vx_target_kernels_img_proc_r5f" to vision_apps/apps/basic_demos/app_tirtos/tirtos_linux/mcu2_1/concerto.mak and generat vx_app_tirtos_linux_mcu2_1.out, can it worked? There are differernt tivxImgMosaicNode in different r5f core.