Consumer drones record next to each video a .SRT subtitle file: second by second, the time, the drone's GPS position and altitude (rel_alt: height above the take-off point). The tool extracts the flight path. Paste the address of a Lab file or choose a file.
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In real life: exiftool, DJI Flight Log Viewer, Airdata; investigators also analyse the drone's internal log (.DAT files). Take-off almost always happens next to the pilot. In France, a hobby drone must not fly higher than 120 m or over a prison.