{
  "source": "original silent 2D reframe from one generated still, reused from VideoExpress guide, not provider output",
  "sourceFile": "videoexpress-authored-reframe.mp4",
  "sourceFrames": 192,
  "fps": 24,
  "operations": {
    "trim": "source frames48 through143 inclusive, reset timestamps",
    "square": "same frames with fixed540 by540 crop at x210 y0, no subject tracking"
  },
  "outputFrames": 96,
  "outputDurationSeconds": 4,
  "audio": false,
  "sha256": {
    "videoexpress-authored-reframe.mp4": "b36fe2b52fda5900ba0119fa70462be92ccdf7ea240a88614a4db0dc0037f109",
    "editor-review-trim.mp4": "8c58ff20893142929cada5d930cba197ba074b9971daa6e57b97f77d6d09d6e0",
    "editor-review-square.mp4": "c9639cdd9451499fddfa8dd4419b7a34cf49b04e00e43046265983362f5fe123"
  },
  "sampledRGBMeanAbsoluteError": {
    "trim frame 0": 1.2555478395061728,
    "square frame 0": 1.709222679469593,
    "trim frame 47": 1.2164866255144033,
    "square frame 47": 1.7742101051668953,
    "trim frame 95": 1.5982182355967078,
    "square frame 95": 1.9676897576588934
  },
  "limits": [
    "Lossy encode comparison not perceptual benchmark",
    "No provider editor account tested",
    "No transcript or speech sample",
    "No browser playback proof"
  ]
}