mirror of
https://github.com/azahar-emu/soundtouch
synced 2025-11-07 07:30:02 +01:00
6533514372
Improve soundtouch.clear() so that it really clears all TDStretch & RateTransposer state variables. Before this clear() left last processed sample or fractional position state uncleared, which caused slightly different result if same stream was processed again after clear().
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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///
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/// Linear interpolation routine.
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///
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/// Author : Copyright (c) Olli Parviainen
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/// Author e-mail : oparviai 'at' iki.fi
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/// SoundTouch WWW: http://www.surina.net/soundtouch
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///
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////////////////////////////////////////////////////////////////////////////////
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//
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// License :
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//
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// SoundTouch audio processing library
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// Copyright (c) Olli Parviainen
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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////////////////////////////////////////////////////////////////////////////////
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#ifndef _InterpolateLinear_H_
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#define _InterpolateLinear_H_
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#include "RateTransposer.h"
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#include "STTypes.h"
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namespace soundtouch
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{
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/// Linear transposer class that uses integer arithmetic
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class InterpolateLinearInteger : public TransposerBase
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{
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protected:
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int iFract;
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int iRate;
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virtual int transposeMono(SAMPLETYPE *dest,
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const SAMPLETYPE *src,
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int &srcSamples);
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virtual int transposeStereo(SAMPLETYPE *dest,
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const SAMPLETYPE *src,
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int &srcSamples);
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virtual int transposeMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, int &srcSamples);
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public:
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InterpolateLinearInteger();
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/// Sets new target rate. Normal rate = 1.0, smaller values represent slower
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/// rate, larger faster rates.
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virtual void setRate(double newRate);
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virtual void resetRegisters();
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int getLatency() const
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{
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return 0;
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}
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};
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/// Linear transposer class that uses floating point arithmetic
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class InterpolateLinearFloat : public TransposerBase
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{
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protected:
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double fract;
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virtual int transposeMono(SAMPLETYPE *dest,
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const SAMPLETYPE *src,
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int &srcSamples);
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virtual int transposeStereo(SAMPLETYPE *dest,
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const SAMPLETYPE *src,
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int &srcSamples);
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virtual int transposeMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, int &srcSamples);
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public:
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InterpolateLinearFloat();
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virtual void resetRegisters();
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int getLatency() const
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{
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return 0;
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}
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};
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}
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#endif
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