def hdr.index

emerging-ezaudio@0.4.0.0 · src/mp3.bend:34

import Base

34# bitrate index, 0 and 15 are not a frame
35def hdr.index(xs: List<&2, U32>) -> U32:
36  match xs:
37    case _b0 <> _b1 <> +b2 <> _b3 <> _rest:
38      (b2 >> 4n : U32)
39    case _:
40      0