VfrToCfr

Revision as of 21:58, 16 August 2019

Description

This plugin converts variable frame rate clips to constant frame rate by introducing null frames.

By specifying a constant target frame rate (CFR) in the form of a numerator and denominator that yield a frame rate higher than the average frame rate of variable frame rate (VFR) clip, the plugin will insert null frames (exact copies of previous frame(s)) where needed to keep the framerate constant.

Requirements

• AviSynth 2.6 or greater
• AviSynth+ is required for 64-bit version.
• Supported color formats: RGB24, RGB32, Y8, YV12, YV16, YV24

Syntax and Parameters

TimecodeFPS (clip, string "timecodes", int "fpsnum", int "fpsden", bool "debug")

clip   = last

Input clip. Can be any AviSynth supported colorspace. Must have exactly the same number of frames as lines in timecodes.

string  timescodes = ""

Path to a matroska v2 timecodes file. Only matroska v2 timecodes files are supported.

int  fpsnum = 0

Numerator of the target FPS.

int  fpsden = 0

Denominator of the target FPS.

bool  debug = false

Whether or not to show internal information (render it on top of the video). This parameter is optional and defaults to false.

Examples

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

FFVideoSource( "myclip.mp4", timecodes="timecodes.txt" )
vfrtocfr( timecodes="timecodes.txt", fpsnum=24000, fpsden=1001 )

audiodub( FFAudioSource("myclip.mp4") )

Changelog

Version         Date            Changes

v1.0            2013-01-15      - Initial release [1]

External Links

• GitHub - Source code
• WordPress - Convert VFR to CFR using AviSynth

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