---
root:
  items:
    - type: clip
      id: 2
      complex:
        - rect: [100, 100, 299, 299]
          radius: 32

    - type: yuv-image
      format: planar
      src-y: barn-y.png
      src-u: barn-u.png
      src-v: barn-v.png
      bounds: [100, 100, 299, 299]
      clip-chain: [2]