Convert60ito24p - Revision history

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Admin: 1 revision

2013-05-19T22:03:49Z

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Wilbert at 21:32, 18 May 2013

2013-05-18T21:32:45Z

New page

I've made a script that converts 60i video to 24p avoiding jerkyness in motion using blending. <br>
since I am a PAL - man I cannot test on a wide spectrum of NTSC - sources.

are there any volunteers, who can do tests with my script? <br>
I think, especially mode 2 of this script could be useful on non decimatable animes...

== usage: ==

import(convert60ito24p.avs)
loadplugin(your 60fps deinterlacer like dgbob or tomsbob)
xxxsource("clip")
your60fpsdeinterlacer()
convert60ito24p(2,0)

=== mode - parameter: ===
------------------
0 uses simple 24 out of 60 selection -> jerky motion

Code:

.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

1 introduces a blending of every other frame from its nearest neighbors

Code:

.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

this mode delivers a non-jerky motion and should be used with shutter speeds below 1/60sec!
ie. 1/120 or shorter

2 uses blending on every frame like this:

Code:

.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

mode 2 is 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 comletely
eliminates remained line flickering of the deinterlacing!

every other number given to mode delivers the the input directly to the output (60fps)

=== offset - parameter: ===
--------------------
here you can apply a offset for selecting the 2 out of 5 frames - pattern.

function convert60ito24p(clip video, int mode, int offset)
{
work = assumefieldbased(video)

out = (mode==3) ? interleave (
\ selectevery(
\ overlay(trim(work, 1, 0),
\ overlay(work, trim(work, 2, 0), mode="blend", opacity=0.5),
\ mode="blend", opacity=0.5), 5, 0 + offset),
\ selectevery(
\ overlay(
\ overlay(work, trim(work, 3, 0), mode="blend", opacity=0.5),
\ overlay(trim(work, 2, 0), trim(work, 1, 0), mode="blend", opacity=0.5),
\ level = 170), 5, 2 + offset)) :

\ (mode==2) ? interleave(
\ selectevery(
\ overlay(trim(work, 1, 0),
\ overlay(work, trim(work, 2, 0), mode="blend",opacity=0.5),
\ mode="blend",opacity=0.5), 5, 0 + offset),
\ selectevery(
\ overlay(work, trim(work, 1, 0), mode="blend",opacity=0.5), 5, 3 + offset)) :

\ (mode==1) ? interleave(
\ selectevery(trim(work, 1, 0), 5, 0 + offset),
\ selectevery(overlay(work, trim(work, 1, 0), mode="blend",opacity=0.5), 5, 3 + offset)) :

\ (mode==0) ? selectevery(work, 5, 1 + offset, 4 + offset) : work

assumeframebased(out)
}

== Links ==
* [http://forum.doom9.org/showthread.php?s=&threadid=63368 Convert60ito24p thread in doom9]

[[Category:External filters]]

@@ Line 14: / Line 14: @@
 == Requirements ==
 * AviSynth 2.5.8 or later
-* [[Progressive]] input only
+* [[Interlacing_and_deinterlacing|Progressive]] input only
 * Supported color formats: [[RGB24]], [[RGB32]], [[YUY2]]
 <br>

@@ Line 1: / Line 1: @@
 I've made a script that converts 60i video to 24p avoiding jerkyness in motion using blending. <br>
 since I am a PAL - man I cannot test on a wide spectrum of NTSC - sources.
@@ Line 86: / Line 87: @@
+  }
-== Links ==
+==External Links ==
 * [http://forum.doom9.org/showthread.php?s=&threadid=63368 Convert60ito24p thread in doom9]
+* [http://home.arcor.de/scharfis_brain/60ito24p.html scharfis_brain's 60ito24p webpage]
-[[Category:External filters]]
+<br>