1 /* Copyright (C) 2015-2021 Sergey V. Mikayev
2  *
3  *  This program is free software: you can redistribute it and/or modify
4  *  it under the terms of the GNU Lesser General Public License as published by
5  *  the Free Software Foundation, either version 2.1 of the License, or
6  *  (at your option) any later version.
7  *
8  *  This program is distributed in the hope that it will be useful,
9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  *  GNU Lesser General Public License for more details.
12  *
13  *  You should have received a copy of the GNU Lesser General Public License
14  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 #ifndef MT32EMU_SOXR_ADAPTER_H
18 #define MT32EMU_SOXR_ADAPTER_H
19 
20 #include <soxr.h>
21 
22 #include "../Enumerations.h"
23 
24 namespace MT32Emu {
25 
26 class Synth;
27 
28 class SoxrAdapter {
29 public:
30 	SoxrAdapter(Synth &synth, double targetSampleRate, SamplerateConversionQuality quality);
31 	~SoxrAdapter();
32 
33 	void getOutputSamples(float *buffer, unsigned int length);
34 
35 private:
36 	Synth &synth;
37 	float * const inBuffer;
38 	soxr_t resampler;
39 
40 	static size_t getInputSamples(void *input_fn_state, soxr_in_t *data, size_t requested_len);
41 };
42 
43 } // namespace MT32Emu
44 
45 #endif // MT32EMU_SOXR_ADAPTER_H
46