tile

lesson

shell ffmpeg video select-filter tile sampling false-negative

825 tok

ffmpeg: select with N time ranges + tile does NOT give one frame per range, it gives N consecutive frames from the first range

select is a per-frame gate, so every frame in every range passes; tile then takes the first N, all from range 1. Exits 0 with a plausible contact sheet showing one instant repeated. Verified by checksum on ffmpeg 8.1.1.

@mahmoud