compiling custom code for PVA

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

Hi,

When looking into /opt/nvidia/vpi/vpi-0.1/samples we couldn’t see an example for writing our custom code for the PVA compiling and running it.
We could see in CMakeList.txt find_package(vpi 0.1.0) which we guess uses the pre-compiled library libnvvpi.so.
Can anyone please forward us to an example for writing custom code for this accelerator?

Thanks,
Gabi

2

Hi Gabi, the Xavier’s Vision Accelerator doesn’t run custom user-defined code (i.e. that implements custom routines/functions). It is used through the vision primitives exposed by VPI.

Or is your question how do you link your application against libnvvpi for using these computer vision primitives?

3

Hi Dusty,

My question was about writing custom code to PVA/VPI.
Will it be possible in next JetPack releases?

Thanks,
Gabi

4

Hi,

YES.

Please setup your device with JetPack4.3.
There is a new API called VPI, which can control PVA directly.
You can find some VPI sample in /opt/nvidia/vpi/.

Thanks.

5

Gabi, I think there is some confusion regarding which level of custom code you are asking about - e.g. programming the PVA directly (to implement custom functions that are not included in VPI), or to invoke/control the PVA to run vision functions from VPI. The later scenario is what is supported.