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: NPavel Koshevoy <pavel@homestead.aragog.com> Signed-off-by: NStefano Sabatini <stefasab@gmail.com>
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libavfilter/af_atempo.c
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此差异已折叠。
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