1 // Copyright 2004 "Gilles Degottex"
3 // This file is part of "Music"
5 // "Music" is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU Lesser General Public License as published by
7 // the Free Software Foundation; either version 2.1 of the License, or
8 // (at your option) any later version.
10 // "Music" is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU Lesser General Public License for more details.
15 // You should have received a copy of the GNU Lesser General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #ifndef _TimeAnalysis_h_
21 #define _TimeAnalysis_h_
29 #include "Algorithm.h"
30 #include "CumulativeDiff.h"
34 //! Seek for the period (relative to sampling rate)
35 double GetAverageWaveLengthFromApproxEnergy(const std::deque<double>& queue, double approx, int n);
37 //! Seek for the period (relative to sampling rate)
38 double GetAveragePeriodFromApprox(const std::deque<double>& queue, int approx, int n);
40 //! Get a sample of the wave form (relative to sampling rate)
41 void GetWaveSample(const std::deque<double>& queue, size_t wave_length, std::deque<double>& sample);
44 #endif // _TimeAnalysis_h_