dca: clear inactive subbands only once in qmf_32_subbands()

Writing zeros to the high entries in the array need only be
done once as the cutoff position is constant throughout the
loop.

Signed-off-by: Mans Rullgard <mans@mansr.com>
pull/2/head
Mans Rullgard 14 years ago
parent 1ee2014190
commit bf00a73ace
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