10bit CUeglColorFormat in nvivafilter

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
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1

I am running gstreamer pipeline to decode H265 stream using Jetson Orin’s hardware decoder. I need to grab frames and process them in CUDA. Best solution I found so far was to use nvivafilter, but seems nvivafilter only supports NV12 or RGBA CUeglColorFormat. Both of these are only 8-bit. My incoming content is 10bit, is there a way to access the 10bit buffer from CUDA?

This is my current pipeline:

/usr/bin/gst-launch-1.0 filesrc location=<mp4> ! \
  qtdemux ! queue ! h265parse ! nvv4l2decoder ! \
  nvivafilter cuda-process=true customer-lib-name="libnvsample_cudaprocess.so" ! \
  'video/x-raw(memory:NVMM), format=(string)RGBA' ! \
  fakesink -e
3

Hi,
It is not supported on Jetson Nano. 10-bit h265 stream will be decoded into 8-bit YUV420 on Jetson Nano.

4

I am using " Jetson AGX Orin Developer Kit", not Nano. Is there a way to access the 10bit buffer from CUDA?

5

Hi,
Please execute the command and share the prints for reference:

$ cat /etc/nv_tegra_release

This topic is in Jetson Nano category, so we get confused. Would like to confirm which platform and software version you are using.

6

Sorry, not sure how the category “Jetson Nano” is added, the device I use is Jetson AGX Orin Developer Kit:

$ cat /etc/nv_tegra_release
# R35 (release), REVISION: 2.1, GCID: 32413640, BOARD: t186ref, EABI: aarch64, DATE: Tue Jan 24 23:38:33 UTC 2023
7

Hi,
Please refer to the sample:
Error generated while running the code after connecting the camera - #15 by DaveYYY

It demonstrates:

GstBuffer → NvBufSurface → CUeglFrame → OpenCV

You can follow the function calls to get CUeglFrame and access the buffer through CUDA.

The pipeline will be like:

filesrc ! qtdemux ! queue ! h265parse ! nvv4l2decoder ! nvvidconv ! 'video/x-raw(memory:NVMM),format=P010_10LE' ! appsink

or

filesrc ! qtdemux ! queue ! h265parse ! nvv4l2decoder ! nvvidconv ! 'video/x-raw(memory:NVMM),format=I420_10LE' ! appsink

And you can access the buffer in appsink

Besides, the latest release is Jetpack 5.1.2(r35.4.1). It would be great if you can upgrade to latest version.