Does orin nx use nvbufsurftransform to support yuv422 to yuv420?

hello tmsh,

regarding to YUV422 to YUV420 conversion.
you may call NvBufferTransform() for the conversion, which is perform on the hardware converter VIC.
please see-also MMAPI for reference,
for instance, /usr/src/jetson_multimedia_api/samples/unittest_samples/transform_unit_sample/

please see-also forum thread, such as Topic 291509 as see-also.