Mercurial > hg > vamp-plugin-sdk
diff src/vamp-sdk/FFT.cpp @ 337:d5c5a52e6c9f
Make the simple base-fft implementation accessible for use by plugins as well. Bump version to 2.4
author | Chris Cannam |
---|---|
date | Thu, 12 Jul 2012 11:37:31 +0100 |
parents | |
children | ab8e761f3ee9 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/vamp-sdk/FFT.cpp Thu Jul 12 11:37:31 2012 +0100 @@ -0,0 +1,70 @@ +/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ + +/* + Vamp + + An API for audio analysis and feature extraction plugins. + + Centre for Digital Music, Queen Mary, University of London. + Copyright 2006-2012 Chris Cannam and QMUL. + + Permission is hereby granted, free of charge, to any person + obtaining a copy of this software and associated documentation + files (the "Software"), to deal in the Software without + restriction, including without limitation the rights to use, copy, + modify, merge, publish, distribute, sublicense, and/or sell copies + of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR + ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + Except as contained in this notice, the names of the Centre for + Digital Music; Queen Mary, University of London; and Chris Cannam + shall not be used in advertising or otherwise to promote the sale, + use or other dealings in this Software without prior written + authorization. +*/ + +#include <vamp-sdk/FFT.h> + +#include <cmath> + +#if ( VAMP_SDK_MAJOR_VERSION != 2 || VAMP_SDK_MINOR_VERSION != 4 ) +#error Unexpected version of Vamp SDK header included +#endif + +_VAMP_SDK_PLUGSPACE_BEGIN(FFT.cpp) + +namespace Vamp { + +#include "FFTimpl.cpp" + +void +FFT::forward(unsigned int n, + const double *ri, const double *ii, + double *ro, double *io) +{ + fft(n, false, ri, ii, ro, io); +} + +void +FFT::inverse(unsigned int n, + const double *ri, const double *ii, + double *ro, double *io) +{ + fft(n, true, ri, ii, ro, io); +} + +} + +_VAMP_SDK_PLUGSPACE_END(FFT.cpp) +