FTurn

Abstract
Author	tp7
Version	v1.4
Download	fturn-25.dll - [Avisynth 2.5.8] fturn-26.dll - [Avisynth 2.6]
Category	Rotation
License	MIT but binaries are GPLv2
Discussion

Description

Fast implementation of TurnLeft(), TurnRight() and Turn180() AviSynth functions. fturn180 rotates a clip 180 degress, fturnleft rotates 90 degrees counter clock wise, and fturnright rotates 90 degrees clockwise.

Requirements

- AviSynth 2.5.8 or AviSynth 2.6.0 Alpha5 or later

- Progressive input only

- Supported color formats: Y8, YV12, YV24

** If you're using AviSynth 2.5.8, YV12 will be the only colorspace supported.

- SSE2 capable CPU

Syntax and Parameters

fturn180 (clip, bool "chroma")

fturnleft (clip, bool "chroma", bool "mt")

fturnright (clip, bool "chroma", bool "mt")

bool  chroma = true

When set to false chroma will not be processed.

This isuseful when chroma processing is not needed (almost often in anti aliasing scripts).

bool  mt = true

FTurn is internally multithreaded; set to false to disable.

Chroma is processed in a separate thread with mt=true (default).

Examples

UnsharpHQ with default settings:

AviSource("Blah.avi")
UnsharpHQ(THRESHOLD=20, SHARPSTR=4.0, SMOOTH=0.5, SHOW=false)

Changelog

Version      Date            Changes

v0.3         2011/02/21      - Initial public release

External Links

• Doom9 Forum - FTurn discussion.
• GitHub - Source code repository.

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