Doom9's Forum - View Single Post - ChangeFPS( )

ppera2 · 28th January 2002, 15:50

When I use ChangeFPS(25) command in AVISynth for 23.976 source it produces same number of frames, shorter lenght: 1:24:59 from source of 1:28:36 . But it is only in VDub's file information.
In praxis it produces choppy movement what is expected by description and same time duration.
Actually information is same as when perform AssumeFPS() command, but it should be same duration as source and 4.2709 % more frames.

It looks for me as bug. Or I didn't correct understood how this command works ?

I write it after I worked on NTSC to PAL conversion. This wrong duration and framecount information confused me lot.
With AssumeFPS() command it worked well.

28th January 2002, 15:50	#1 \| Link
ppera2 Registered User Join Date: Oct 2001 Location: Lands of confusion Posts: 1,217	ChangeFPS( ) - bug ? When I use ChangeFPS(25) command in AVISynth for 23.976 source it produces same number of frames, shorter lenght: 1:24:59 from source of 1:28:36 . But it is only in VDub's file information. In praxis it produces choppy movement what is expected by description and same time duration. Actually information is same as when perform AssumeFPS() command, but it should be same duration as source and 4.2709 % more frames. It looks for me as bug. Or I didn't correct understood how this command works ? I write it after I worked on NTSC to PAL conversion. This wrong duration and framecount information confused me lot. With AssumeFPS() command it worked well.