doieee

根据IEEE 1180-1990写的测试iDCT精确性。

# perform IEEE 1180 test series
# Typical usage:
#    doieee  progname  >outfile
# where progname is ieeetest or a variant

time $1 -256 255 1 10000
time $1 -5 5     1 10000
time $1 -300 300 1 10000

time $1 -256 255 -1 10000
time $1 -5 5     -1 10000
time $1 -300 300 -1 10000