def jpeg.component.block
import gralha-jpeg-decode@0.1.0.1/jpeg.bend as Jpegimport Base
411def jpeg.component.block(block: JPEGBlock, component: JPEGComponent) -> JPEGPart:
412 JPEGBlock{stream, coefficients, predictor} = block
413 JPEGComponent{id, h, v, quant, dc, ac, old, bw, bh, previous, samples} = component
414 JPEGPart{JPEGComponent{id, h, v, quant, dc, ac, predictor, bw, bh, coefficients, samples}, stream}