TDA4VH-Q1: TIOVX Node Queries

Reshma P

Prodigy 100 points

Part Number: TDA4VH-Q1

Hello Team,

We are using an RGB-IR webcam for an ADAS application. Its connected through the USB 3.0 port. We are receiving 2592x1946 UYVY data and we need to resize this to 1280x720 using VPAC MSC Node.
- The flow we tried is
  - Read UYVY data-> extract Y channel-> resize to 1280x720 (using tivxVpacMscScaleNode)
- But after resizing we are getting black image. Please help us in solving this.
Also we would like to know is there any tiovx node that we can use for v4l2 capture.

Best Regards,

Reshma

1 month ago

0 Gokul S 1 month ago

TI__Mastermind 21470 points

Hi Reshma,

How is the data coming from usb camera ? which driver are you using to capture the frames ? is the capture being handled in any custom openvx node or you are using any native linux drivers to capture the data.

Reshma P said:
Also we would like to know is there any tiovx node that we can use for v4l2 capture.

Ok, seems like you are using v4l2 capture.

You can use gstreamer plugins for vpac_msc_scaler.

Refer, https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-sk-tda4vm/11_00_00/exports/edgeai-docs/common/edgeai_dataflows.html

Regards,
Gokul

0 Gokul S 1 month ago in reply to Gokul S

TI__Mastermind 21470 points

Hi Reshma,

There are some more example applications to use v4l2 capture based stream in rtos sdk.

Refer to $(psdkra)/edgeai/edgeai-tiovx-apps/tests

$(psdkra)/edgeai/edgeai-tiovx-apps/tests/app_tiovx_linux_rgb_ir_capture_display_test.c

Regards,
Gokul

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TDA4VH-Q1: TIOVX Node Queries