From Avisynth wiki
Jump to: navigation, search
Author Aktan
Version 20180118
Download VFRtoCFR20180118.zip
Category Frame Rate Converters
License Open Source
Discussion Doom9 Forum



Converts a variable frame rate (VFR) video to a constant frame rate (CFR) video with the help of Matroska Version 2 Timecodes.


Syntax and Parameters

VFRtoCFR (clip, string "times", int "numfps", int "denfps", bool "dropped")

clip   = last
The clip to convert from VFR to CFR.

string  times = "times.txt"
The path to Matroska timecodes (v2).

int  numfps = 30000
The numerator of the CFR.

int  denfps = 0
The denominator of the CFR

bool  dropped = false
If true, it will throws an error if there are frames dropped in the conversion. Good to figure out if the CFR is set too low.


Convert a VFR video clip to CFR FILM (23.976fps):

FFVideoSource("myclip.mp4", timecodes="timecodes.txt")
VFRtoCFR(times="timecodes.txt", numfps=24000, denfps=1001)



Version         Date            Changes
20180118 2018-01-18 - Minor text change - Compiled 64-bit DLL 20120730 2012-07-30 - Rewrote the whole algorithm to be a lot smarter 20120528 2012-05-28 - Initial release

Archived Downloads

Version Download Mirror
20120730 VFRtoCFR20120730.zip VFRtoCFR20120730.zip

External Links

  • GitHub - Source code repository.
  • GitHub - VapourSynth version.

Back to External Filters

Personal tools