From Avisynth wiki
|Category||Frame Rate Converters|
This function converts 60fps video into 24fps avoiding jerky motion.
- Note: this method is rather old (2003), better alternatives are available.
convert60ito24p (clip video, int mode, int offset)
- clip video =
- Input clip.
- int mode =
- 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.
mode=0: uses simple 24 out of 60 selection -> jerky motion.
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
mode=1: 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.
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
mode=2: 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!
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=3: similar to mode 2 but with more motion blur.
- Any other number given to mode just returns the original (60fps) input clip.
- int offset =
- Apply an offset for selecting the 2 out of 5 frames - pattern.
AviSource("blah.avi") QTGMC() # or any other double frame rate deinterlacer convert60ito24p(2,0)
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