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Diffstat (limited to 'audio/softsynth/mt32/srchelper/srctools/include/LinearResampler.h')
-rw-r--r-- | audio/softsynth/mt32/srchelper/srctools/include/LinearResampler.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/audio/softsynth/mt32/srchelper/srctools/include/LinearResampler.h b/audio/softsynth/mt32/srchelper/srctools/include/LinearResampler.h new file mode 100644 index 0000000000..1f4dd2fcbd --- /dev/null +++ b/audio/softsynth/mt32/srchelper/srctools/include/LinearResampler.h @@ -0,0 +1,42 @@ +/* Copyright (C) 2015-2017 Sergey V. Mikayev + * + * This program 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 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef LINEAR_RESAMPLER_H +#define LINEAR_RESAMPLER_H + +#include "ResamplerStage.h" + +namespace SRCTools { + +static const unsigned int LINEAR_RESAMPER_CHANNEL_COUNT = 2; + +class LinearResampler : public ResamplerStage { +public: + LinearResampler(double sourceSampleRate, double targetSampleRate); + ~LinearResampler() {} + + unsigned int estimateInLength(const unsigned int outLength) const; + void process(const FloatSample *&inSamples, unsigned int &inLength, FloatSample *&outSamples, unsigned int &outLength); + +private: + const double inputToOutputRatio; + double position; + FloatSample lastInputSamples[LINEAR_RESAMPER_CHANNEL_COUNT]; +}; + +} // namespace SRCTools + +#endif // LINEAR_RESAMPLER_H |