View source for Convert60ito24p

{{FilterCat4|External_filters|Scripts|Adjustment_filters|Frame_Rate_Conversion}}
{{Filter3
|scharfis_brain
|
|[http://home.arcor.de/scharfis_brain/convert60ito24p.avs convert60ito24p.avs] [http://web.archive.org/web/20121102063915/http://home.arcor.de/scharfis_brain/convert60ito24p.avs]
|Frame Rate Converters
|
|6=[http://forum.doom9.org/showthread.php?s=&threadid=63368  Doom9 Thread]}}

== Description ==
This function converts 60fps video into 24fps avoiding jerky motion.
*'''Note:''' this method is rather old (2003), better alternatives are available. 
<br>
== Requirements ==
* AviSynth 2.5.8 or later
* [[Interlacing_and_deinterlacing|Progressive]] input only 
* Supported color formats: [[RGB24]], [[RGB32]], [[YUY2]]
<br>
== [[Script variables|Syntax and Parameters]] ==
{{Template:FuncDef|convert60ito24p (clip video, int mode, int offset)}}
<br>
<br>
:{{Par2|video|clip| }}
::Input clip.
<br>
:{{Par2|mode|int| }}
::Mode 0 does a simple 2 out of 5 selection, which results in jerky motion. Use this mode for comparing purposes.
::Modes 1 to 3 are using blending of nearby Frames to avoid jerkyness and "simulate" motionblur. The higher the mode-number the more motionblur will be made and thus the motion gets smoother. Modes 2 and 3 are only recommended with a shutterspeed of 1/60sec. With shorter shutter speeds use Mode 1.
::*<code>mode=0</code> : uses simple 24 out of 60 selection -> jerky motion.
<ul><DD><DD><pre style="width: 100%;"> 
 A B C D E F G H I J K L M N O P Q R  <- input sequence
   |     |   |     |   |     |   |    <- | = direct copy
   1    2    3    4    5    6    7    <- resulting output sequence
</pre></ul>
::*<code>mode=1</code> : introduces a blending of every other frame from its nearest neighbors. This mode delivers a non-jerky motion and should be used with shutter speeds below 1/60sec! ie. 1/120 or shorter.
<ul><DD><DD><pre style="width: 100%;"> 
 A B C D E F G H I J K L M N O P Q R  <- input sequence
   |   \ /   |   \ /   |   \ /   |    <- | = direct copy ; \ / = 50:50 blending
   1    2    3    4    5    6    7    <- resulting output sequence
</pre></ul>
::*<code>mode=2</code> : uses blending on every frame, ideal for shutter speed of 1/60 sec since it simulates very close the 24p (1/24sec) motion blur and thus giving a really smooth 24p - motion as a positive side-effect, this mode reduces noise and nearly completely  eliminates remained line flickering of the deinterlacing!
<ul><DD><DD><pre style="width: 100%;"> 
A B C D E F G H I J K L M N O P Q R   <- input sequence
  \|/  \ /  \|/  \ /  \|/  \ /  \|/   <- \|/ = 25:50:25 blending ; \ / = 50:50 blending
   1    2    3    4    5    6    7    <- resulting output sequence
</pre></ul>
::*<code>mode=3</code> : similar to mode 2 but with more motion blur.
::*Any other number given to mode just returns the original (60fps) input clip.
<br>
:{{Par2|offset|int| }}
::Apply an offset for selecting the 2 out of 5 frames - pattern.
<br>
== Examples ==
 Import("convert60ito24p.avs")<br>
 [[AviSource]]("blah.avi")
 QTGMC() # or any other double frame rate deinterlacer
 convert60ito24p(2,0)
<br>
==External Links ==
* [http://forum.doom9.org/showthread.php?s=&threadid=63368  Doom9 Forum] - Convert60ito24p discussion.
* [http://home.arcor.de/scharfis_brain/60ito24p.html scharfis_brain's website][http://web.archive.org/web/20121101034135/http://home.arcor.de/scharfis_brain/60ito24p.html] - Convert60ito24p webpage. 
<br>
<br>
-----------------------------------------------
'''Back to [[External_filters#Frame_Rate_Conversion|External Filters]] &larr;'''