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Diffstat (limited to 'src/thirdparty/SoundTouch/source/RateTransposer.h')
| -rw-r--r-- | src/thirdparty/SoundTouch/source/RateTransposer.h | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/src/thirdparty/SoundTouch/source/RateTransposer.h b/src/thirdparty/SoundTouch/source/RateTransposer.h deleted file mode 100644 index 51fc36fc5..000000000 --- a/src/thirdparty/SoundTouch/source/RateTransposer.h +++ /dev/null @@ -1,179 +0,0 @@ -////////////////////////////////////////////////////////////////////////////////
-///
-/// Sample rate transposer. Changes sample rate by using linear interpolation
-/// together with anti-alias filtering (first order interpolation with anti-
-/// alias filtering should be quite adequate for this application).
-///
-/// Use either of the derived classes of 'RateTransposerInteger' or
-/// 'RateTransposerFloat' for corresponding integer/floating point tranposing
-/// algorithm implementation.
-///
-/// Author : Copyright (c) Olli Parviainen
-/// Author e-mail : oparviai 'at' iki.fi
-/// SoundTouch WWW: http://www.surina.net/soundtouch
-///
-////////////////////////////////////////////////////////////////////////////////
-//
-// Last changed : $Date: 2014-04-06 15:57:21 +0000 (Sun, 06 Apr 2014) $
-// File revision : $Revision: 4 $
-//
-// $Id: RateTransposer.h 195 2014-04-06 15:57:21Z oparviai $
-//
-////////////////////////////////////////////////////////////////////////////////
-//
-// 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 RateTransposer_H
-#define RateTransposer_H
-
-#include <stddef.h>
-#include "AAFilter.h"
-#include "FIFOSamplePipe.h"
-#include "FIFOSampleBuffer.h"
-
-#include "STTypes.h"
-
-namespace soundtouch
-{
-
-/// Abstract base class for transposer implementations (linear, advanced vs integer, float etc)
-class TransposerBase
-{
-public:
- enum ALGORITHM {
- LINEAR = 0,
- CUBIC,
- SHANNON
- };
-
-protected:
- virtual void resetRegisters() = 0;
-
- virtual int transposeMono(SAMPLETYPE *dest,
- const SAMPLETYPE *src,
- int &srcSamples) = 0;
- virtual int transposeStereo(SAMPLETYPE *dest,
- const SAMPLETYPE *src,
- int &srcSamples) = 0;
- virtual int transposeMulti(SAMPLETYPE *dest,
- const SAMPLETYPE *src,
- int &srcSamples) = 0;
-
- static ALGORITHM algorithm;
-
-public:
- float rate;
- int numChannels;
-
- TransposerBase();
- virtual ~TransposerBase();
-
- virtual int transpose(FIFOSampleBuffer &dest, FIFOSampleBuffer &src);
- virtual void setRate(float newRate);
- virtual void setChannels(int channels);
-
- // static factory function
- static TransposerBase *newInstance();
-
- // static function to set interpolation algorithm
- static void setAlgorithm(ALGORITHM a);
-};
-
-
-/// A common linear samplerate transposer class.
-///
-class RateTransposer : public FIFOProcessor
-{
-protected:
- /// Anti-alias filter object
- AAFilter *pAAFilter;
- TransposerBase *pTransposer;
-
- /// Buffer for collecting samples to feed the anti-alias filter between
- /// two batches
- FIFOSampleBuffer inputBuffer;
-
- /// Buffer for keeping samples between transposing & anti-alias filter
- FIFOSampleBuffer midBuffer;
-
- /// Output sample buffer
- FIFOSampleBuffer outputBuffer;
-
- bool bUseAAFilter;
-
-
- /// Transposes sample rate by applying anti-alias filter to prevent folding.
- /// Returns amount of samples returned in the "dest" buffer.
- /// The maximum amount of samples that can be returned at a time is set by
- /// the 'set_returnBuffer_size' function.
- void processSamples(const SAMPLETYPE *src,
- uint numSamples);
-
-public:
- RateTransposer();
- virtual ~RateTransposer();
-
- /// Operator 'new' is overloaded so that it automatically creates a suitable instance
- /// depending on if we're to use integer or floating point arithmetics.
-// static void *operator new(size_t s);
-
- /// Use this function instead of "new" operator to create a new instance of this class.
- /// This function automatically chooses a correct implementation, depending on if
- /// integer ot floating point arithmetics are to be used.
-// static RateTransposer *newInstance();
-
- /// Returns the output buffer object
- FIFOSamplePipe *getOutput() { return &outputBuffer; };
-
- /// Returns the store buffer object
-// FIFOSamplePipe *getStore() { return &storeBuffer; };
-
- /// Return anti-alias filter object
- AAFilter *getAAFilter();
-
- /// Enables/disables the anti-alias filter. Zero to disable, nonzero to enable
- void enableAAFilter(bool newMode);
-
- /// Returns nonzero if anti-alias filter is enabled.
- bool isAAFilterEnabled() const;
-
- /// Sets new target rate. Normal rate = 1.0, smaller values represent slower
- /// rate, larger faster rates.
- virtual void setRate(float newRate);
-
- /// Sets the number of channels, 1 = mono, 2 = stereo
- void setChannels(int channels);
-
- /// Adds 'numSamples' pcs of samples from the 'samples' memory position into
- /// the input of the object.
- void putSamples(const SAMPLETYPE *samples, uint numSamples);
-
- /// Clears all the samples in the object
- void clear();
-
- /// Returns nonzero if there aren't any samples available for outputting.
- int isEmpty() const;
-};
-
-}
-
-#endif
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