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Diffstat (limited to 'src/lib/audio_analysis.h')
| -rw-r--r-- | src/lib/audio_analysis.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/lib/audio_analysis.h b/src/lib/audio_analysis.h new file mode 100644 index 000000000..cfc170c84 --- /dev/null +++ b/src/lib/audio_analysis.h @@ -0,0 +1,70 @@ +/* + Copyright (C) 2012 Carl Hetherington <cth@carlh.net> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef DCPOMATIC_AUDIO_ANALYSIS_H +#define DCPOMATIC_AUDIO_ANALYSIS_H + +#include <iostream> +#include <vector> +#include <list> +#include <boost/filesystem.hpp> + +class AudioPoint +{ +public: + enum Type { + PEAK, + RMS, + COUNT + }; + + AudioPoint (); + AudioPoint (std::istream &); + AudioPoint (AudioPoint const &); + AudioPoint& operator= (AudioPoint const &); + + void write (std::ostream &) const; + + float& operator[] (int t) { + return _data[t]; + } + +private: + float _data[COUNT]; +}; + +class AudioAnalysis : public boost::noncopyable +{ +public: + AudioAnalysis (int c); + AudioAnalysis (boost::filesystem::path); + + void add_point (int c, AudioPoint const & p); + + AudioPoint get_point (int c, int p) const; + int points (int c) const; + int channels () const; + + void write (boost::filesystem::path); + +private: + std::vector<std::vector<AudioPoint> > _data; +}; + +#endif |
