Indeed, just don't use CUVID. It doesn't support proper 10-bit decoding (and I do not plan to offer broken 10-bit decoding like some of these XP users here want).
DXVA2 is generally superior, it offers full bit-exact 10-bit decoding and various other features that CUVID couldn't begin to offer (like proper HDR metadata extraction, and more).
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LAV Filters - open source ffmpeg based media splitter and decoders
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