Support AV1 codec

[Former user]

Some movies are now available in AV1 video codec. Some new TVs also support AV1 video codec.

But serviio didn't recognize movies with this codec:

WARN  [MetadataExtractionCoordinator] Skipping processing metadata for an unsupported file (/data/Media/Filmy/Eternals-(2021)/bad/Eternals.2021.CZ.Dub.1080p.BluRay.AV1-TNT-SamTVReady.mkv). Message: Unknown video codec.

It would be really nice serviio to recognize this new codec.

Info: ffmpeg with libaom installed

[Petr Nejedly]

doesn't seem to work without bundled av1 decoder, will keep investigating

[Petr Nejedly]

build ffmpeg with libaom where possible. These builds will not support av1 transcoding:

• qnap x19
• qnap x31
• qnap intel 32bit

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