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

Raffriff42 04:08, 29 December 2015 (CET)

Inserted a warning re: non-integral frame rates with ShowSMPTE -- Raffriff42 06:28, 1 January 2016 (CET)

ShowSMPTE: fps argument

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 04:17, 29 December 2015 (CET)

On testing, it seems the frame rate is overridden, throwing off the real time reading. Would not be useful in the above scenario.

Inserted an "unclear" tag, like this: roses are blue^(unclear) -- Raffriff42 06:28, 1 January 2016 (CET)