Mp3.hdr.sync: def of emerging-ezaudio@0.4.0.0
Import: import emerging-ezaudio@0.4.0.0/src/mp3.bend as Mp3
Lines 74-80 of emerging-ezaudio@0.4.0.0/src/mp3.bend: https://jend.leeeet.dev/read.txt?path=emerging-ezaudio@0.4.0.0/src/mp3.bend&start_line=74&end_line=80

import Base

# 1 when the first two bytes carry the 11-bit sync 0xFFE
def hdr.sync(xs: List<&2, U32>) -> Bool:
  match xs:
    case 255 <> +b1 <> _b2 <> _b3 <> _rest:
      U32.is_eq((b1 .&. 224 : U32), 224)
    case _:
      False{}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Con
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Nil