Fr0zkaandClaude Opus 5.5
753cc9c259
BuildLinux.sh hashes a sorted manifest of compiled inputs into VOXELFORGE_SOURCE_STAMP, printed first by every executable; Standalone/Tools/verify/verify.py checks it before and after each tier and records binary/input hashes and the resolved recipe, style map and layout. Fast (163 s) runs on the canonical owner world only and asserts FI Style 2 / SW Style 1; medium (8 min) and full (26 min) add the style matrix, GCC, determinism and cost. Controls: stale source, mislabelled style-0 owner, all-black capture, L30/L31, L35/L36 and the L38 step are all rejected. No geometry change; owner hashes identical to L37. Research R6: leak table, generator contract and a 10-step metre-native migration plan. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
#!/usr/bin/env python3
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"""Reject empty and nearly black captures by decoding pixels and measuring coverage."""
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from __future__ import annotations
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import argparse
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import math
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from pathlib import Path
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import subprocess
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import sys
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LIMIT = ["taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--"]
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def inspect(path: Path) -> tuple[bool, str]:
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probe = subprocess.run([*LIMIT, "timeout", "30s", "ffmpeg", "-nostdin",
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"-hide_banner", "-loglevel", "error", "-i", str(path), "-frames:v", "1",
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"-f", "rawvideo", "-pix_fmt", "rgb24", "pipe:1"],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE, timeout=30, check=False)
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if probe.returncode != 0 or not probe.stdout or len(probe.stdout) % 3:
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return False, f"decode_failed exit={probe.returncode} bytes={len(probe.stdout)}"
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raw = probe.stdout
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count = len(raw) // 3
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total = 0
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square_total = 0
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covered = 0
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for index in range(0, len(raw), 3):
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luminance = (77 * raw[index] + 150 * raw[index + 1] + 29 * raw[index + 2]) >> 8
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total += luminance
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square_total += luminance * luminance
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covered += luminance > 12
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mean = total / count
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variance = max(0.0, square_total / count - mean * mean)
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deviation = math.sqrt(variance)
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coverage = covered / count
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passed = deviation >= 2.0 and coverage >= 0.001
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return passed, (f"pixels={count} mean_luma={mean:.3f} stddev_luma={deviation:.3f} "
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f"coverage_luma_gt12={coverage:.5f} thresholds=(stddev>=2.0,coverage>=0.001)")
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def main() -> int:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("image", type=Path)
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args = parser.parse_args()
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if not args.image.is_file():
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print(f"[CaptureQuality] image={args.image} status=FAIL reason=missing")
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return 1
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passed, detail = inspect(args.image)
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print(f"[CaptureQuality] image={args.image} {detail} status={'PASS' if passed else 'FAIL'}")
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return 0 if passed else 1
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if __name__ == "__main__":
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raise SystemExit(main())
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