Test program updated to create a blank background surface
of the appropriate type. This program needs to be improved
by loading a real YUV image so that the algorithm can be
confirmed.
#! /usr/bin/env python
# By GvR, demystified after a version by Fredrik Lundh.
import sys
n = 100
if sys.argv[1:]: n = int(sys.argv[1])
def bottle(n):
if n == 0: return "no more bottles of beer"
if n == 1: return "one bottle of beer"
return str(n) + " bottles of beer"
for i in range(n):
print bottle(n-i), "on the wall,"
print bottle(n-i) + "."
print "Take one down, pass it around,"
print bottle(n-i-1), "on the wall."