The downside of that approach is that it is forcing the use of init_hw_device, which is somewhat limiting with regards to the possible syntax and I don't think that it allows to select a specific adapter at the same time.
Our approach is a little different - we're using a global parameterqsv_use_dx11 for this (nobody will ever mix DX9 and DX11). That allows to use the same command line syntax for both DX9 and DX11 and you can switch between both, by adding the global option or not:
One typical with explicit (DX9) device selection is like that:
The Intel patch suggests to use
-init_hw_device qsv:,child_device_type=dxva2for switching between DX9 and DX11.
The downside of that approach is that it is forcing the use of
init_hw_device, which is somewhat limiting with regards to the possible syntax and I don't think that it allows to select a specific adapter at the same time.Our approach is a little different - we're using a global parameter
qsv_use_dx11for this (nobody will ever mix DX9 and DX11). That allows to use the same command line syntax for both DX9 and DX11 and you can switch between both, by adding the global option or not: