My Filters and Tools

Avisynth Filters
VirtualDub Filters
Tools and Utilities

Avisynth Filters

The author of Avisynth, Ben-Rudiak Gould, gave up its development some time ago. It has been carried on by several other groups of people. My tools require a version of Avisynth that supports plugins. There are two generations of Avisynth. The first, Avisynth 2.0x, is now obsolete. The second, Avisynth 2.5, supports significant new features, such as YV12 color space and lots of new built-in filters. You can download it and find extensive documentation and links about it here. Please be careful to use the appropriate version (2.5 versus 2.0x) when using my filters.

Following are my personally authored filters for Avisynth.

For Avisynth 2.5 and beyond:

AutoYUY2 Filter: Adaptive Chroma Upsampler (YV12 to YUY2)
Decomb Filter Package: IVTC and deinterlacing
DGBob Filter: Convert fields to frames and double framerate
Dup Filter: Replace near duplicates with exact duplicates
FDecimate Filter: Free (arbitrary target frame rate) decimation
KernelDeint Filter: Artifact-free deinterlacing
MultiDecimate Filter: Global and N-in-M decimation
MSharpen Filter: Edge-masked sharpener
MSmooth Filter: Detail-preserving smoother
DGDecNV GPU-Enabled AVC/MPEG2/VC1 Decoder and Frame Server
DGAVCDecDI AVC Decoder and Frame Server (uses DiAVC decoder)
DGMPGDec MPEG1/2 Decoder and Frame Server

For Avisynth 2.0x:

Decomb Filter Package: legacy version for Avisynth 2.0x
Dup Filter: version for Avisynth 2.0x
MSharpen Filter: version for Avisynth 2.0x
Tweak Plugin: adjusts hue, saturation, brightness, and contrast (note this is now built-in to Avisynth; provided here because it contains C code)

VirtualDub Filters

Following are my personally authored filters for VirtualDub:

Tools and Utilities

DGPulldown is an MPEG2 flagging utility that can "flag" the video such that a PAL to NTSC conversion occurs during playback. This means you can leave the video encoded at 25fps progressive, providing better quality for the same bit budget and avoiding any need to modify the audio duration.

QuantDump is a small command line utility for extracting the quant matrices from MPEG elementary or program streams.

Level Patcher is a GUI utility that allows you to patch an MPEG2 elementary stream so that it has a specified profile and level. I made this because some freeware MPEG2 encoders could encode in HD resolution but did not set the level to High, thereby making the stream unplayable in some players.

DGAVCPulldown is a GUI utility for adding 3:2 field pulldown to AVC elementary streams. Includes source code.

DGSplit is a GUI binary file splitter that works on arbitrarily large files.

For people who need to deinterlace stills, I have created two tools:

Stand-Alone Smart BMP Deinterlacer This is a command-line program that operates on 24-bit BMP files, and supports batch mode. I have provided this in response to several requests for deinterlacing of a non-lossy format. Future versions may add a GUI. Source code is included in the zip file.
Stand-Alone Smart JPG Deinterlacer This is a GUI-based program that operates on JPEG files.

In addition to my filters above I have also modified Steven Don's Dynamic Noise Reduction filter to support scripts:

Steven Don's Dynamic Noise Reduction Filter

I've also modified Avery Lee's popular WarpSharp filter to work when imported into Avisynth:

WarpSharp filter that works in Avisynth

Here is a useful utility called DebugView that allows for viewing filter tweaking information that is output by some of my filters:

DebugView utility