erikandClaude Opus 5.5
e1c1012c1c
UVC extension-unit control (mouse/scan mode, LEDs, exposure), JPEG header fix and embedded laser record decoding, session recorder, and a stitcher that combines laser dead reckoning with phase correlation and ECC refinement. FINDINGS.md holds the reverse-engineered protocol and laser calibration. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
#!/usr/bin/env python3
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"""Put the myScan into scan mode the way Hal::OVMouseManager::startVideo does,
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grab a few seconds of frames, decode the embedded sensor records, then restore
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mouse mode."""
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import argparse
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import os
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import sys
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import time
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
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sys.stderr = os.fdopen(os.dup(2), "w")
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os.dup2(os.open(os.devnull, os.O_WRONLY), 2) # silence libjpeg warnings
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import cv2 # noqa: E402
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import numpy as np # noqa: E402
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from myscan.frame import fix_and_extract # noqa: E402
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from myscan.xu import XU # noqa: E402
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def main():
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ap = argparse.ArgumentParser()
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ap.add_argument("-d", "--duration", type=float, default=4)
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ap.add_argument("-o", "--out", default="scantest")
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ap.add_argument("--video", default="/dev/video4")
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a = ap.parse_args()
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os.makedirs(a.out, exist_ok=True)
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x = XU(a.video)
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print("D8 before:", hex(x.bridge_read(0xD8)))
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try:
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print("disable mouse:", x.disable_mouse())
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print("2D=60:", x.mcu_write_verified(0x2D, 0x60), " E7=28:", x.mcu_write_verified(0xE7, 0x28))
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print("start scan:", x.start_scan())
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cap = cv2.VideoCapture(a.video, cv2.CAP_V4L2)
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cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*"MJPG"))
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cap.set(cv2.CAP_PROP_CONVERT_RGB, 0)
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t0, n = time.time(), 0
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while time.time() - t0 < a.duration:
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ok, f = cap.read()
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if not ok:
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continue
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raw = f.tobytes()
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clean, rec = fix_and_extract(raw)
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im = cv2.imdecode(np.frombuffer(clean, np.uint8), cv2.IMREAD_GRAYSCALE)
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cv2.imwrite(f"{a.out}/f{n:04d}.png", im)
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if n % 10 == 0:
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r = rec.raw.hex() if rec else None
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print(f"#{n:3d} {len(raw):6d}B bright={im.mean():6.1f} rec={r}", flush=True)
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n += 1
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cap.release()
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print(f"{n} frames -> {a.out}/")
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finally:
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print("enable mouse:", x.enable_mouse())
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print("D8 after:", hex(x.bridge_read(0xD8)))
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if __name__ == "__main__":
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main()
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