david/librubberband
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

* Pull across from main repo: Fix silent channel of output when processing with band-limited transients option; include libresample support. Also update copyright dates.

Browse Source
This commit is contained in:
Chris Cannam
2011-01-07 21:46:36 +00:00
parent 99ba629361
commit 0b8c1bd90b
58 changed files with 3327 additions and 3176 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
src/dsp/FFT.h
View File

@@ -3,7 +3,7 @@
/*
Rubber Band
An audio time-stretching and pitch-shifting library.
Copyright 2007-2010 Chris Cannam.
Copyright 2007-2011 Chris Cannam.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -30,11 +30,14 @@ class FFTImpl;
* complex conjugates half is omitted), so the "complex" arrays need
* room for size/2+1 elements.
*
* Not thread safe: use a separate instance per thread, or use a mutex.
* The "interleaved" functions use the format sometimes called CCS --
* size/2+1 real+imaginary pairs. So, the array elements at indices 1
* and size+1 will always be zero (since the signal is real).
*
* This class is reentrant but not thread safe: use a separate
* instance per thread, or use a mutex.
*/
//!!! it would be nice if we could redefine forwardMagnitude as forwardPower (i.e. square of magnitude)
class FFT
{
public:
@@ -44,18 +47,22 @@ public:
~FFT();
void forward(const double *R__ realIn, double *R__ realOut, double *R__ imagOut);
void forwardInterleaved(const double *R__ realIn, double *R__ complexOut);
void forwardPolar(const double *R__ realIn, double *R__ magOut, double *R__ phaseOut);
void forwardMagnitude(const double *R__ realIn, double *R__ magOut);
void forward(const float *R__ realIn, float *R__ realOut, float *R__ imagOut);
void forwardInterleaved(const float *R__ realIn, float *R__ complexOut);
void forwardPolar(const float *R__ realIn, float *R__ magOut, float *R__ phaseOut);
void forwardMagnitude(const float *R__ realIn, float *R__ magOut);
void inverse(const double *R__ realIn, const double *R__ imagIn, double *R__ realOut);
void inverseInterleaved(const double *R__ complexIn, double *R__ realOut);
void inversePolar(const double *R__ magIn, const double *R__ phaseIn, double *R__ realOut);
void inverseCepstral(const double *R__ magIn, double *R__ cepOut);
void inverse(const float *R__ realIn, const float *R__ imagIn, float *R__ realOut);
void inverseInterleaved(const float *R__ complexIn, float *R__ realOut);
void inversePolar(const float *R__ magIn, const float *R__ phaseIn, float *R__ realOut);
void inverseCepstral(const float *R__ magIn, float *R__ cepOut);