keep only highest possible audio stream of specific codecs, channel count and language.

[h9rst]

Hi all.

Currently Setting up my Tdarr for my 4k Files.

1080p is done. For better Comp i use ac3 for that and delete everything whats unneeded.

But for my 4k Files i want to keep one of the following Codecs:

Dolby Digital, DTS or Dolby Pro Logic 5.1 if present, if not Convert them to one of them.

But i also dont want to loose 5.1 (if present) + lowest possible quality loss while keeping surround sound.

Like:

Audio is TRUEHD 7.1 (or any other unsupported codec) > convert to best possible 5.1 codec that is supported.

If its already 5.1 and one of them (Dolby Digital, DTS or Dolby Pro Logic) > skip & only delete everything unneeded.

I only need the best possible German Audio stream, and want to delete the rest.

Is this possible with a plugin/flow?

The 3 Codecs are the only ones (besides aac,ac3...) that are supported on all devices where i watch my 4k stuff, thats why and i only know how to keep one audio of X codec, and not the best of X Amount of codecs.
The language one shouldnt be the problem at the end, because i know of the plugins only for that.
i just cant find a way for the channel/codec part.
Sorry for my bad english

Thanks