NTSCSquare1.1c

#################
#               #
#  NTSCSquare   #
# By Cannonaire #
#               #
#   Ver. 1.1c   #
#               #
#   Updated:    #
#  2011-02-17   #
#               #
#################
#
# Required plugins: None!
# Required input: Width must be 720 pixels,
#                 Height must be 480 pixels for
#                 'big' parameter.
#
#################
# Usage: NTSCSquare(bool wide, bool big)
# Recommendation: Crop after this script to remove junk
#
#################
# Arguments:
# Wide (default=false) - True for 16:9 flagged source,
#                        False for 4:3 flagged source
#
# Big (default=false) - True if you want to mix 4:3 and
#                       16:9 sources at 16:9 resolution.
#
# Left (Default=4.575) - Tweak cropping on the left.
#                        Default value is centered.
#
#################
# Purpose: Scale NTSC pixels to 1:1 PAR.  Useful for getting
#   a common PAR when mixing 4:3 and 16:9 sources.
#
# Active picture area numbers taken from this page:
# http://ps-auxw.de/cgi-bin/ar-calc.pl
#
#################

function NTSCSquare(clip oclp, bool "wide", bool "big", float "left")
{
assert(oclp.width==720, "NTSCSquare: Width must be 720")
big = Default(big, false)
(big==true) ? assert(oclp.height==480, "NTSCSquare: Height must be 480 for 'big' parameter") : last

yres = height(oclp)
wide = Default(wide, false)
left = Default(left, 4.575)
xr = (big==true) ?  int(864) : (wide==true) ? int(864) : int(648)
yr = (big==true) ? int(640) : yres

fclp = oclp.Spline36Resize(xr, yr, src_left=left, src_top=0, src_width=710.85, src_height=yres)

return fclp
}
#################
# Changes:
# 1.1c
# -Fixed parameter bug.
#
# 1.1b
# -Reimplemented support for any vertical resolution
#  when 'big' parameter is false.
#
# 1.1
# -Added 'big' parameter for
# -No longer supports any vertical resolution
#################