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Diffstat (limited to 'audio/softsynth/mt32/srchelper/SamplerateAdapter.h')
-rw-r--r-- | audio/softsynth/mt32/srchelper/SamplerateAdapter.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/audio/softsynth/mt32/srchelper/SamplerateAdapter.h b/audio/softsynth/mt32/srchelper/SamplerateAdapter.h new file mode 100644 index 0000000000..aac259b50a --- /dev/null +++ b/audio/softsynth/mt32/srchelper/SamplerateAdapter.h @@ -0,0 +1,46 @@ +/* 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 SAMPLERATE_ADAPTER_H +#define SAMPLERATE_ADAPTER_H + +#include <samplerate.h> + +#include "../SampleRateConverter.h" + +namespace MT32Emu { + +class SamplerateAdapter { +public: + SamplerateAdapter(Synth &synth, double targetSampleRate, SampleRateConverter::Quality quality); + ~SamplerateAdapter(); + + void getOutputSamples(float *outBuffer, unsigned int length); + +private: + Synth &synth; + float * const inBuffer; + unsigned int inBufferSize; + const double inputToOutputRatio; + const double outputToInputRatio; + SRC_STATE *resampler; + + static long getInputSamples(void *cb_data, float **data); +}; + +} // namespace MT32Emu + +#endif // SAMPLERATE_ADAPTER_H |