NVJPEG Decode acceleration, libnvjpeg, and NVJPEG_BACKEND_HARDWARE

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

Ostensibly, the Jetson AGX Orin supports JPEG decode acceleration, according to the data sheet Section 4.7. We are seeing insufficient performance using the libnvjpeg library with NVJPEG_BACKEND_DEFAULT, so we tried NVJPEG_BACKEND_HARDWARE but this yields a NVJPEG_STATUS_ARCH_MISMATCH error. What gives?

3

Hi,
Please refer to the sample for using hardware JPEG decoding:

/usr/src/jetson_multimedia_api/samples/06_jpeg_decode
Jetson Linux API Reference: 06_jpeg_decode (JPEG decode) | NVIDIA Docs

4

Wow, thank you, that is really key. For those playing along at home: There are two libnvjpeg.so libraries, one in CUDA, which I was attempting to use, and one specific to AGX Orin/Tegra which employs acceleration (/usr/lib/aarch64-linux-gnu/libnvjpeg.so), which has completely different entry points and semantics. This library appears to be undocumented beyond the sample code.

5

Hi,
We are trying to unify the interface between dGPU and Jetson platforms. This is a long term plan and may take some time. For now please user the interface for Jetson platforms.