[Feature Request] Support `h264_mf` and `hevc_mf` (H.264/H.265/HEVC via MediaFoundation) codecs in FFmpeg

[tats-u]

Is your feature request related to a problem? Please describe.

x264, x265, _qsv, _amf, and _nvenc have no guarantee that they are exempt from the obligation to pay patent fees.

Describe the solution you'd like

h264_mf and hevc_mf codecs use the MediaFoundation API in WIndows, which it is highly expected that Microsoft has already paid the patent fee for.

Describe alternatives you've considered

Stick to AV1, which is royalty free.

Additional context

They have less options than x264, x265, _qsv and etc.