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Ignore indoor GPS9 default dates when finding video t=0 - #835

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rnissl wants to merge 4 commits into
mapillary:mainfrom
rnissl:mly/03-gps9-clock
Open

rnissl wants to merge 4 commits into
mapillary:mainfrom
rnissl:mly/03-gps9-clock

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@rnissl

@rnissl rnissl commented Sep 20, 2026

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Summary

  • Treat GPS time as usable only after GPS9 day 8000 and a 10/100 ms-aligned clock (Hero 11 / Max 2 indoor default calendar).
  • CAMM extraction can stop at the first good point.

Test plan

  • existing CAMM/geo tests still pass

Rebased onto current mapillary/mapillary_tools main (d1b82ab). Independent of the GoPro Max / custom FFmpeg stack.
CAMM extract conflict with #828 resolved by keeping epoch normalization and stopping at the first usable GPS clock.

rnissl and others added 2 commits September 20, 2026 19:40
Hero 11 and Max 2 start on a fake 2021-03 calendar. Treat GPS time as usable only after day 8000 and a 10/100 ms-aligned clock. CAMM extraction can stop at the first good point.

Co-authored-by: Cursor <cursoragent@cursor.com>
Spell out the 10 ms time-of-day grid so the check does not depend on an internal dump tool.

Co-authored-by: Cursor <cursoragent@cursor.com>
@meta-cla meta-cla Bot added the cla signed label Sep 20, 2026
rnissl and others added 2 commits September 20, 2026 22:06
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
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