File: Readme_BT709ToBT601.txt

//  BT709ToBT601 - Conv HDTV to SDTV color space
//	Copyright (C) 2002 Tom Barry  - trbarry@trbarry.com
//
//	This program is free software; you can redistribute it and/or modify
//	it under the terms of the GNU General Public License as published by
//	the Free Software Foundation; either version 2 of the License, or
//	(at your option) any later version.
//
//	This program is distributed in the hope that it will be useful,
//	but WITHOUT ANY WARRANTY; without even the implied warranty of
//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//	GNU General Public License for more details.
//
//	You should have received a copy of the GNU General Public License
//	along with this program; if not, write to the Free Software
//	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Also, this program is "Philanthropy-Ware".  That is, if you like it and feel
the need to reward or inspire the author then please feel free (but not obligated) 
to consider joining or donating to the Electronic Frontier Foundation. This will 
help keep cyber space free of barbed wire and bullsh*t.  

See their web page at www.eff.org

***************

Okay, on to business. 

WARNING - This version only runs on the Avisynth 2.5 or higher release.

BT709ToBT601 is a simple converter to adjust the HDTV (BT.709) color space
date to the more common SDTV (BT.601, NTSC, DVD, etc.). 

There is only a subtle change but if I did this right then colors may
display more accurately.


USAGE - To use it just:

1) Place the BT709ToBT601.dll in a directory somewhere, like your Avisynth_2.5
   plugins folder. You can get it from www.trbarry.com/BT709ToBT601.zip

2) In your Avisynth file use commands similar to 

    LoadPlugin("F:\BT709ToBT601\BT709ToBT601.dll")
    Avisource("D:\wherever\myfile.avi")
    BT709ToBT601()
	
Of course replace the file and directory names with your own.  
There are no parameters and you don't need the "LoadPlugin" command if the 
dll is in your default Avisynth plugins folder.


KNOWN ISSUES AND LIMITATIONS

1) 	Requires YV12 input.        

2)  Input data currently must be multiples of 8x2.


FILE LOCATIONS

For now, both source, this readme, and DLL should be at:
	
	www.trbarry.com/BT709ToBT601.zip

A copy of this Readme_BT709ToBT601.txt file should be at:
  	
	www.trbarry.com/Readme_BT709ToBT601.txt

***************

Change Log:


2003/04/07  V 0.1.0.0  Initial test release 





























