View source for VFRtoCFR

{{FilterCat5|External_filters|Plugins|Plugins_x64|Adjustment_filters|Frame_Rate_Conversion}}
{{Filter3
|Aktan
|20180118
|[https://github.com/Aktanusa/VFRtoCFR/releases VFRtoCFR20180118.zip]
|Frame Rate Converters
|Open Source
|6=[https://forum.doom9.org/showthread.php?t=165045 Doom9 Forum]}}
== Description == 
Converts a variable frame rate (VFR) video to a constant frame rate (CFR) video with the help of Matroska Version 2 Timecodes.
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== Requirements ==
* [x86]: [[AviSynth+]] or [https://sourceforge.net/projects/avisynth2/ AviSynth 2.6]
* [x64]: [[AviSynth+]]
* Supported color formats: [[RGB24]], [[RGB32]], [[Y8]], [[YV12]], [[YV16]], [[YV24]]

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== [[Script variables|Syntax and Parameters]] ==
:{{Template:FuncDef|VFRtoCFR (clip, string "times", int "numfps", int "denfps", bool "dropped") }}
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::{{Par2| |clip|last}}
:::The clip to convert from VFR to CFR.
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::{{Par2|times|string|"times.txt"}}
:::The path to  Matroska timecodes (v2).
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::{{Par2|numfps|int|30000}}
:::The numerator of the CFR.
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::{{Par2|denfps|int|0}}
:::The denominator of the CFR
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::{{Par2|dropped|bool|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.
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== Examples ==
Convert a VFR video clip to CFR FILM (23.976fps):
<pre>
FFVideoSource("myclip.mp4", timecodes="timecodes.txt")
VFRtoCFR(times="timecodes.txt", numfps=24000, denfps=1001)

AudioDub(FFAudioSource("myclip.mp4"))
</pre>
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==Changelog==
 Version         Date            Changes<br>
 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
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== Archived Downloads ==
{| class="wikitable" border="1"; width="600px"
|-
!!width="100px"| Version
!!width="150px"| Download
!!width="150px"| Mirror
|-
!20120730
|[http://www.mediafire.com/file/q6zfgpo5dhh50si/VFRtoCFR20120730.zip/file VFRtoCFR20120730.zip]
|[https://web.archive.org/web/20200421033133if_/http://s000.tinyupload.com/download.php?file_id=00583875088715259081&t=0058387508871525908198006 VFRtoCFR20120730.zip]
|}
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==External Links ==
*[https://github.com/Aktanusa/VFRtoCFR GitHub] - Source code repository.
*[https://github.com/Irrational-Encoding-Wizardry/Vapoursynth-VFRToCFR GitHub] - VapourSynth version.
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