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Diffstat (limited to 'lib/soundtouch/PeakFinder.h')
| -rw-r--r-- | lib/soundtouch/PeakFinder.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/lib/soundtouch/PeakFinder.h b/lib/soundtouch/PeakFinder.h deleted file mode 100644 index 9fe66adac5..0000000000 --- a/lib/soundtouch/PeakFinder.h +++ /dev/null @@ -1,90 +0,0 @@ -////////////////////////////////////////////////////////////////////////////////
-///
-/// The routine detects highest value on an array of values and calculates the
-/// precise peak location as a mass-center of the 'hump' around the peak value.
-///
-/// Author : Copyright (c) Olli Parviainen
-/// Author e-mail : oparviai 'at' iki.fi
-/// SoundTouch WWW: http://www.surina.net/soundtouch
-///
-////////////////////////////////////////////////////////////////////////////////
-//
-// License :
-//
-// SoundTouch audio processing library
-// Copyright (c) Olli Parviainen
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License, or (at your option) any later version.
-//
-// This library 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
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-////////////////////////////////////////////////////////////////////////////////
-
-#ifndef _PeakFinder_H_
-#define _PeakFinder_H_
-
-namespace soundtouch
-{
-
-class PeakFinder
-{
-protected:
- /// Min, max allowed peak positions within the data vector
- int minPos, maxPos;
-
- /// Calculates the mass center between given vector items.
- double calcMassCenter(const float *data, ///< Data vector.
- int firstPos, ///< Index of first vector item belonging to the peak.
- int lastPos ///< Index of last vector item belonging to the peak.
- ) const;
-
- /// Finds the data vector index where the monotoniously decreasing signal crosses the
- /// given level.
- int findCrossingLevel(const float *data, ///< Data vector.
- float level, ///< Goal crossing level.
- int peakpos, ///< Peak position index within the data vector.
- int direction /// Direction where to proceed from the peak: 1 = right, -1 = left.
- ) const;
-
- // Finds real 'top' of a peak hump from neighnourhood of the given 'peakpos'.
- int findTop(const float *data, int peakpos) const;
-
-
- /// Finds the 'ground' level, i.e. smallest level between two neighbouring peaks, to right-
- /// or left-hand side of the given peak position.
- int findGround(const float *data, /// Data vector.
- int peakpos, /// Peak position index within the data vector.
- int direction /// Direction where to proceed from the peak: 1 = right, -1 = left.
- ) const;
-
- /// get exact center of peak near given position by calculating local mass of center
- double getPeakCenter(const float *data, int peakpos) const;
-
-public:
- /// Constructor.
- PeakFinder();
-
- /// Detect exact peak position of the data vector by finding the largest peak 'hump'
- /// and calculating the mass-center location of the peak hump.
- ///
- /// \return The location of the largest base harmonic peak hump.
- double detectPeak(const float *data, /// Data vector to be analyzed. The data vector has
- /// to be at least 'maxPos' items long.
- int minPos, ///< Min allowed peak location within the vector data.
- int maxPos ///< Max allowed peak location within the vector data.
- );
-};
-
-}
-
-#endif // _PeakFinder_H_
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