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Commit a1aac8d0 authored by Pavel Koshevoy's avatar Pavel Koshevoy Committed by Stefano Sabatini
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lavfi: add atempo filter 


Add atempo audio filter for adjusting audio tempo without affecting
pitch. This filter implements WSOLA algorithm with fast cross
correlation calculation in frequency domain.

Signed-off-by: default avatarPavel Koshevoy <pavel@homestead.aragog.com>
Signed-off-by: default avatarStefano Sabatini <stefasab@gmail.com>
parent bc4da77b
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