View source for Talk:ShowFrameNumber

=====ShowSMPTE: integral or drop-frame framerates only=====
:on reading text-overlay.cpp <code>ShowSMPTE::ShowSMPTE</code>, 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 <code>int(24.25+0.5)==24.0</code> 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?
[[User:Raffriff42|Raffriff42]] 04:08, 29 December 2015 (CET)

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