Jpeg.jpeg.quant.segment: def of gralha-jpeg-decode@0.1.0.1
Import: import gralha-jpeg-decode@0.1.0.1/jpeg.bend as Jpeg
Lines 142-149 of gralha-jpeg-decode@0.1.0.1/jpeg.bend: https://jend.leeeet.dev/read.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&start_line=142&end_line=149

import Base
import gralha-text-scan@0.1.0.1/scan.bend as U
import gralha-bytes@0.1.0.1/bytes.bend as Bin

def jpeg.quant.segment(+src: Bin.Bytes, +at: U32, +end: U32, +frame: JPEGFrame) -> JPEGFrame:
  JPEGFrame{w, h, hm, vm, progressive, components, quants, huffs, restart, adobe, valid} = frame
  +pq = Bin.bytes.get(src, at)
  +stride = U32.inc((pq / 16 : U32))
  +next = (at + 1 + 64 * stride : U32)
  U.branch(JPEGFrame, U32.is_eq(at, end), _ => frame,
    _ => U.branch(JPEGFrame, U32.is_gt(at, end) || U32.is_gt(pq, 19) || U32.is_gt((pq % 16 : U32), 3) || U32.is_gt(next, end), _ => jpeg.frame.invalid(frame),
      _ => jpeg.quant.segment(src, next, end, JPEGFrame{w, h, hm, vm, progressive, components, Con{JPEGQuant{(pq % 16 : U32), jpeg.quant.read(64n, src, U32.inc(at), stride, 0, Bin.bytes.zero(64))}, quants}, huffs, restart, adobe, valid})))

Uses (18):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  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.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.inc
  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=U32.is_gt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mod
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mul
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=bytes.get
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=bytes.zero
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGFrame
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGQuant
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.frame.invalid
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.quant.read
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=branch