def step.chunk.on
import emerging-ezaudio@0.4.0.0/src/wav.bend as Wavimport Base
230def step.chunk.on(
231 isf: Bool, +tag: U32, +sz: U32, +seen: U32, +kind: U32, +ch: U32, +rate: U32,
232 ys: List<&2, U32>, frames: List<&2, U32>
233) -> St:
234 match isf:
235 case True{}:
236 step.fmt(sz, seen, kind, ch, rate, ys, frames)
237 case False{}:
238 step.dat(U32.is_eq(tag, tag.data()), tag, sz, seen, kind, ch, rate, ys, frames)