When selecting H.265 (NVidia NVEnc) encoder, there is no way to set video to 10-Bit. It always produce 8-Bit when the source is 10-Bit.
Also, there is no way to set Encoder Profile to main10, even with adding in the "Extra Options" these ffmpeg command line parameters :
--profile main10 --output-depth 10
Steps to reproduce the problem (If Applicable):
Use any MKV H265 10-Bit hdr10 video, like bluray remux as input, select video encoder "H.265 (NVidia NVEnc)", you can let the encoder profile to auto, select encoder preset Slow, and the output is always 8-Bit, not 10-Bit.
HandBrake version (e.g., 1.0.0):
Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):
Windows 10 Pro 1809
HandBrake Activity Log ***required*** (see How-to get an activity log)
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