Add option to download specific video format with yt-dlp

[fredbloggs73]

Due to hardware video decoding constraints, would it be possible to add a specific option to yt-dlp so when downloading video it could either grab vp9/avc1/av01 format etc. Presently syncer downloads best (webm vp9 if available) version, maybe? before remuxing into mp4 if choosing mp4 in settings

example for avc1 1080 low bitrate yt-dlp -f "bestvideo[vcodec^=avc1][height<=1080][filesize<100M]/best[vcodec^=avc1][height<=1080]"

or maybe even simply yt-dlp -f 137