def an.push
import emerging-ezaudio@0.4.0.0/src/mp3_enc.bend as Mp3Encimport Base
190def an.push(st: An, blk: List<&2, F32>, +win: List<&2, F32>, cos: Array<F32>) -> An & Array<F32>:
191 match st:
192 case An{x, +head, out}:
193 an.done(((head + 32 : U32) .&. 511 : U32), out,
194 an.sb(an.write(32n, x, head, blk), ((head + 32 : U32) .&. 511 : U32), win, cos))