Mp3.hdr.crc: def of emerging-ezaudio@0.4.0.0
Import: import emerging-ezaudio@0.4.0.0/src/mp3.bend as Mp3
Lines 66-72 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=66&end_line=72

import Base

# protection bit 0 means a 16-bit CRC follows the header
def hdr.crc(xs: List<&2, U32>) -> U32:
  match xs:
    case _b0 <> +b1 <> _b2 <> _b3 <> _rest:
      U32.xor((b1 .&. 1 : U32), 1)
    case _:
      0

Uses (4):
  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.xor