[Libav-user] difference between "native" HW decoders and decoder + hw accelerations

[Danilo Neri]

What is the difference between using video decoder "hevc_cuvid" vs "hevc" +
hwaccel->cuda?
Or, analogously, "hevc_qsv" vs "hevc" + hwaccel->qsv?

Is there a difference from a technical point of view?

And what about licensing for usage in a commercial product?
Is licensing/fees for using native HW decoders (hevc_cuvid, hevc_qsv)
covered by GPU hardware vendor?
And what about using hevc decoder + hw accelerations (qsv, cuda, dxva2)
from license/fee point of view?

Thanks,
Dan
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