Talk:ShowFrameNumber

ShowSMPTE: integral or drop-frame framerates only

on reading text-overlay.cpp ShowSMPTE::ShowSMPTE, it looks like the framerate must be an integer (±0.001) or be in drop-frame range (eg, 23.975 - 23.977); framerates like 24.25 will be rounded to int(24.25+0.5)==24.0 and the time calculation will be off. This can't be right!

## (source 24fps)
ShowTime(y=50) ## top center
ShowSMPTE ## time is correct

AssumeFPS(24000, 1001)
ShowTime(y=50)
ShowSMPTE ## time is correct

AssumeFPS(24.25) ## any number not an integer ±0.001 or listed in drop-frame table
ShowTime(y=50)
ShowSMPTE ## time is wrong

Also I don't quite get the fps argument; is it to force a different framerate for timecode display purposes? For example, to show 24fps film frames on a 30fps video clip? Raffriff42 04:08, 29 December 2015 (CET)