Mercurial > hg > segmenter-vamp-plugin
diff armadillo-3.900.4/include/armadillo_bits/fn_fft.hpp @ 49:1ec0e2823891
Switch to using subrepo copies of qm-dsp, nnls-chroma, vamp-plugin-sdk; update Armadillo version; assume build without external BLAS/LAPACK
author | Chris Cannam |
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date | Thu, 13 Jun 2013 10:25:24 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/armadillo-3.900.4/include/armadillo_bits/fn_fft.hpp Thu Jun 13 10:25:24 2013 +0100 @@ -0,0 +1,121 @@ +// Copyright (C) 2013 Conrad Sanderson +// Copyright (C) 2013 NICTA (www.nicta.com.au) +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + + +//! \addtogroup fn_fft +//! @{ + + + +// TODO: fft(real) -> complex [to be tested thoroughly] +// TODO: fft(complex) -> complex [to be tested thoroughly] +// TODO: ifft(complex) -> complex [to be tested thoroughly] + + +template<typename T1> +inline +typename +enable_if2 + < + (is_arma_type<T1>::value && is_real<typename T1::elem_type>::value), + const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real> + >::result +fft(const T1& A) + { + arma_extra_debug_sigprint(); + + return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, uword(0), uword(1)); + } + + + +template<typename T1> +inline +typename +enable_if2 + < + (is_arma_type<T1>::value && is_real<typename T1::elem_type>::value), + const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real> + >::result +fft(const T1& A, const uword N) + { + arma_extra_debug_sigprint(); + + return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, N, uword(0)); + } + + + +template<typename T1> +inline +typename +enable_if2 + < + (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value), + const Op<T1, op_fft_cx> + >::result +fft(const T1& A) + { + arma_extra_debug_sigprint(); + + return Op<T1, op_fft_cx>(A, uword(0), uword(1)); + } + + + +template<typename T1> +inline +typename +enable_if2 + < + (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value), + const Op<T1, op_fft_cx> + >::result +fft(const T1& A, const uword N) + { + arma_extra_debug_sigprint(); + + return Op<T1, op_fft_cx>(A, N, uword(0)); + } + + + +template<typename T1> +inline +typename +enable_if2 + < + (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value), + const Op<T1, op_ifft_cx> + >::result +ifft(const T1& A) + { + arma_extra_debug_sigprint(); + + return Op<T1, op_ifft_cx>(A, uword(0), uword(1)); + } + + + +template<typename T1> +inline +typename +enable_if2 + < + (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value), + const Op<T1, op_ifft_cx> + >::result +ifft(const T1& A, const uword N) + { + arma_extra_debug_sigprint(); + + return Op<T1, op_ifft_cx>(A, N, uword(0)); + } + + + +//! @}