1(*
2 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
3 * Copyright (c) 2003, 2007-14 Matteo Frigo
4 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
19 *
20 *)
21
22val rdft : int -> int -> Complex.signal -> Complex.signal
23val hdft : int -> int -> Complex.signal -> Complex.signal
24val dft_via_rdft : int -> int -> Complex.signal -> Complex.signal
25val dht : int -> int -> Complex.signal -> Complex.signal
26
27val dctI : int -> Complex.signal -> Complex.signal
28val dctII : int -> Complex.signal -> Complex.signal
29val dctIII : int -> Complex.signal -> Complex.signal
30val dctIV : int -> Complex.signal -> Complex.signal
31
32val dstI : int -> Complex.signal -> Complex.signal
33val dstII : int -> Complex.signal -> Complex.signal
34val dstIII : int -> Complex.signal -> Complex.signal
35val dstIV : int -> Complex.signal -> Complex.signal
36