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DeeJanuzandClaude Opus 5.5
50c14545ed
ft-hands tracks with the mono IR cameras in dim light and with every camera (or the colour pair, HANDS_BRIGHT) in bright light, going by the colour frames' mean brightness with hysteresis and a 2 s hold (HANDS_CAMERAS=auto, the default; mono, color and all fix it). Colour frames are placed on the mono cameras' clock by their dequeue time, and a view in a camera a step lacks waits for that camera's next frame. A grip (a closed hand) is a second gesture next to the pinch, in version 2 of the gestures file: every fingertip curled toward the wrist, beginning only on a hand seen open within a second and held up in front. On the 2026-09-30 lit recording that leaves 6 false grips of 14, all with the hands on the desk; pinch counts are unchanged. ft-handreplay logs grips and finger curl, watch_gestures.py shows them, and tools/cut_sets.py copies a few sets out of a recording. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
"""Copy a few frame sets out of a recording (ft-hands --record) into a small one, to look at
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or check elsewhere without moving gigabytes. Plain Python, so it runs on the Frame's host.
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usage: python3 tools/cut_sets.py REC_DIR OUT_DIR [--sets N] (8, spread evenly) | [--at I,J,...]
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"""
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import argparse
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import os
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import struct
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HDR = struct.Struct('<8sII')
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def offsets(path):
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offs, size = [], os.path.getsize(path)
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with open(path, 'rb') as f:
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off = 0
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while off + HDR.size <= size:
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f.seek(off)
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magic, _, nbytes = HDR.unpack(f.read(HDR.size))
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if magic[:7] != b'FHSET01' or off + nbytes > size:
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break
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offs.append((off, nbytes))
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off += nbytes
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return offs
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def main():
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ap = argparse.ArgumentParser()
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ap.add_argument('rec')
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ap.add_argument('out')
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ap.add_argument('--sets', type=int, default=8)
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ap.add_argument('--at', default='')
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a = ap.parse_args()
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src = os.path.join(a.rec, 'sets.bin')
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offs = offsets(src)
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if a.at:
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pick = [int(i) for i in a.at.split(',')]
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else:
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n = max(1, min(a.sets, len(offs)))
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pick = [round(i * (len(offs) - 1) / max(n - 1, 1)) for i in range(n)]
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os.makedirs(a.out, exist_ok=True)
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with open(src, 'rb') as f, open(os.path.join(a.out, 'sets.bin'), 'wb') as out:
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for i in pick:
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off, nbytes = offs[i]
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f.seek(off)
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out.write(f.read(nbytes))
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print('%d of %d sets (%s) -> %s' % (len(pick), len(offs), ','.join(map(str, pick)), a.out))
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if __name__ == '__main__':
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main()
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