demux: mkv: allow reading v3 and v4 files
There's no requirement in v3 and v4 that we don't support. v5 doesn't exist yet.
Ref. #26999
Edited by Steve Lhomme
There's no requirement in v3 and v4 that we don't support. v5 doesn't exist yet.
Ref. #26999
VideoLAN code repository instance