{ "recordedAt": "2026-10-08T03:50:50.825Z", "environment": { "ffmpeg": "ffmpeg version 8.1.2-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers\r", "ffprobe": "ffprobe version 8.1.2-full_build-www.gyan.dev Copyright (c) 2007-2026 the FFmpeg developers\r", "node": "v24.18.0", "platform": "win32" }, "reference": { "file": "reference.mkv", "synthetic": true, "width": 1280, "height": 720, "fps": 30, "seconds": 8, "frame": "frame-reference.png", "frameIndex": 120, "description": "FFmpeg testsrc2 with reproducible seeded noise; generated chart, not camera footage. 440 Hz synthetic tone encoded as AAC." }, "variants": [ { "file": "sample-500.mp4", "bytes": 668314, "seconds": 8, "videoKbps": 530.906, "audioKbps": 127.021, "width": 1280, "height": 720, "sha256": "c7252eb60a7cd09154ab2f37b24797c42328a95538082ac05da49f6d1b3ed42c", "targetKbps": 500, "ssim": 0.8853537874999997, "frame": "frame-500.png", "frameIndex": 120 }, { "file": "sample-1500.mp4", "bytes": 1630205, 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