{
  "method": "Decode actual VP8 output with FFmpeg; read RGB at (10,10), away from labels. Dominant red/green/blue maps to fixture A/B/C. Inspect all tracks with ffprobe. Check browser-produced resampling observations.",
  "ffmpegVersion": "ffmpeg version 8.0.1 Copyright (c) 2000-2025 the FFmpeg developers",
  "passed": true,
  "noNeuralInference": true,
  "audioTrackCount": 0,
  "sourceCardSequence": "AAABBBBC",
  "frames": [
    {
      "outputFrame": 0,
      "timestampSeconds": 0,
      "backgroundRgb": [
        167,
        27,
        49
      ],
      "sourceCard": "A"
    },
    {
      "outputFrame": 1,
      "timestampSeconds": 0.125,
      "backgroundRgb": [
        167,
        27,
        49
      ],
      "sourceCard": "A"
    },
    {
      "outputFrame": 2,
      "timestampSeconds": 0.25,
      "backgroundRgb": [
        167,
        27,
        49
      ],
      "sourceCard": "A"
    },
    {
      "outputFrame": 3,
      "timestampSeconds": 0.375,
      "backgroundRgb": [
        42,
        128,
        72
      ],
      "sourceCard": "B"
    },
    {
      "outputFrame": 4,
      "timestampSeconds": 0.5,
      "backgroundRgb": [
        41,
        130,
        70
      ],
      "sourceCard": "B"
    },
    {
      "outputFrame": 5,
      "timestampSeconds": 0.625,
      "backgroundRgb": [
        41,
        130,
        70
      ],
      "sourceCard": "B"
    },
    {
      "outputFrame": 6,
      "timestampSeconds": 0.75,
      "backgroundRgb": [
        41,
        130,
        70
      ],
      "sourceCard": "B"
    },
    {
      "outputFrame": 7,
      "timestampSeconds": 0.875,
      "backgroundRgb": [
        53,
        82,
        181
      ],
      "sourceCard": "C"
    }
  ]
}