Add format selection criteria longside, shortside#30742

Draft

dirkf wants to merge 2 commits intoytdl-org:masterfrom mk-pmb:fmtsel-longside-shortside

+138-1

Commits on May 16, 2024

[core] Empty format selection string means anything goes.
mk-pmb
committed
[core] Add format selection criteria longside/shortside, and tests for both (ytdl-org#30737 )
mk-pmb
committed