{
  "candidate_source": "d5b4472b8525e82fefdd78143aca62e16e707ce1",
  "frames": [
    {
      "tier": "basic",
      "source_filename": "IMG_2501.mp4",
      "frame_time_seconds": 37,
      "film_sha256": "6e698877536f3b508e56dc7ff698cce820e1fb4a1d8495a903057cc1cd0a8718",
      "image": "basic-IMG_2501.jpg",
      "image_sha256": "e3cfeffcd5d6fe9d7bc1cf54efd041a23d41b2727435fdc8ea6e0508225e588e",
      "method": "FFmpeg seek into actual completed film; one frame, scaled to 960px width"
    },
    {
      "tier": "basic",
      "source_filename": "IMG_2524.mp4",
      "frame_time_seconds": 48,
      "film_sha256": "6e698877536f3b508e56dc7ff698cce820e1fb4a1d8495a903057cc1cd0a8718",
      "image": "basic-IMG_2524.jpg",
      "image_sha256": "1ab77a9c85b891b505f7ff39c85fe3ac42767af29df1938408a63254588e030d",
      "method": "FFmpeg seek into actual completed film; one frame, scaled to 960px width"
    },
    {
      "tier": "gpu",
      "source_filename": "IMG_2491.mp4",
      "frame_time_seconds": 37,
      "film_sha256": "9957abdfb6d8ce7b28fe74ce47fab962967748f30f64760d625d3dd262ecfb72",
      "image": "gpu-IMG_2491.jpg",
      "image_sha256": "aa114afa79e061686860e86e3ba1527c1b56d001cfb0bf3cb4278aef6c1a60c8",
      "method": "FFmpeg seek into actual completed film; one frame, scaled to 960px width"
    },
    {
      "tier": "gpu",
      "source_filename": "IMG_2521.mp4",
      "frame_time_seconds": 48,
      "film_sha256": "9957abdfb6d8ce7b28fe74ce47fab962967748f30f64760d625d3dd262ecfb72",
      "image": "gpu-IMG_2521.jpg",
      "image_sha256": "6c17b53a70d97c3aabc391202ae3c1d46d06a1335349b5d7a6c3258f96bcabba",
      "method": "FFmpeg seek into actual completed film; one frame, scaled to 960px width"
    }
  ],
  "limits": [
    "Public CC0 fixture with synthetic metadata",
    "No external grading",
    "Default titles and bundled tracks differed",
    "Frames have no audio"
  ],
  "music": {
    "basic": "nostalgic/nostalgic_acoustic_s411.opus",
    "gpu": "happy/happy_electronic_1.opus",
    "license": "MIT; package LICENSE-MUSIC is byte-identical to existing demo/tier-music-license.txt",
    "license_sha256": "eb54462fd475ece2f631c1992688dbb575e746994de47db8cef6b61580fcf4e6",
    "images_have_audio": false
  },
  "visual_observations": [
    {
      "basic": "underwater swimmer",
      "gpu": "mountain lake and tents",
      "frame_seconds": 37
    },
    {
      "basic": "mountain lake with forested shoreline",
      "gpu": "waterfall and green rock face",
      "frame_seconds": 48
    }
  ],
  "comparison": {
    "difference": {
      "basic_only": [
        "IMG_2501.mp4",
        "IMG_2524.mp4"
      ],
      "gpu_only": [
        "IMG_2491.mp4",
        "IMG_2521.mp4"
      ],
      "overlap": 12
    },
    "limits": [
      "Warm model-only weights; fresh independent stores/facts/output",
      "Existing caption service unchanged",
      "Default randomized title styles differed",
      "GPU motion unavailable for seven clips",
      "Laya choice:11+ confidence bucket uncalibrated",
      "No external human grading; no claim Basic shipped unsafe sources"
    ],
    "shot_count_per_tier": 14,
    "favourites_per_tier": 4,
    "source_exclusions": {
      "basic": 1,
      "gpu": 3
    },
    "extra_exclusions_present_in_basic_film": false
  },
  "validation": {
    "video": "1920x1080 H264 30fps",
    "audio": "AAC 48kHz stereo",
    "full_decode_exit": {
      "basic": 0,
      "gpu": 0
    },
    "duration_seconds": {
      "basic": 57,
      "gpu": 56.5
    }
  }
}