def step.fmt
import emerging-ezaudio@0.4.0.0/src/wav.bend as Wavimport Base
191def step.fmt(
192 +sz: U32, +seen: U32, +kind: U32, +ch: U32, +rate: U32, ys: List<&2, U32>,
193 frames: List<&2, U32>
194) -> St:
195 match seen:
196 case 0:
197 step.fmt.got(fmt.fields(ys), sz, frames)
198 case _:
199 step.next(sz, tag.fmt(), seen, kind, ch, rate, frames)