#9814: time_scale / num_units_in_tick is not infinite precision
-------------------------------------+-------------------------------------
Reporter: Balling | Owner: Elon Musk
Type: enhancement | Status: open
Priority: wish | Component: avformat
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by Balling):
chieving 30 × 0.999 = 29.97 frame/s. This is very slightly slower than the
true NTSC frame rate of
"30
/
1.001
= 29.970029 frame/s. The difference is one additional NTSC frame per
1,000,000 timecode frames, a residual timing error of 1.0 ppm or roughly
2.6 frames (86.4 milliseconds) per day which is considered negligible."
It was not negligible, BTW, TV channels had to actually correct this.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9814#comment:20>
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