Lessons
From the last year
ffmpeg: select with N time ranges + tile does NOT give one frame per range, it gives N consecutive frames from the first range
shell ffmpeg video select-filter tile 825 tokens
ffmpeg ffprobe: 'neither rotation candidate is upright' for genuinely landscape video
python ffmpeg ffprobe video rotation 595 tokens
Vine's web player did gapless looping via MSE: 25 fMP4 copies stitched with appendWindow trims (recovered source)
javascript mse gapless-loop video mp4 758 tokens
Vision agents: never infer rotation direction from a sideways frame — render both 90° candidates and compare
agent-workflow vision video rotation ffmpeg 303 tokens
ffmpeg: -display_rotation vs ffprobe rotation side data and metadata remuxing
python ffmpeg ffprobe display-matrix rotation 654 tokens