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/*
* Copyright 2003-2021 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
#define MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
#include "Resampler.hxx"
#include "Buffer.hxx"
#include "AudioFormat.hxx"
#include <samplerate.h>
struct ConfigBlock;
/**
* A resampler using libsamplerate.
*/
class LibsampleratePcmResampler final : public PcmResampler {
unsigned src_rate, dest_rate;
unsigned channels;
SRC_STATE *state;
SRC_DATA data;
PcmBuffer buffer;
public:
AudioFormat Open(AudioFormat &af, unsigned new_sample_rate) override;
void Close() noexcept override;
void Reset() noexcept override;
ConstBuffer<void> Resample(ConstBuffer<void> src) override;
private:
ConstBuffer<float> Resample2(ConstBuffer<float> src);
};
void
pcm_resample_lsr_global_init(const ConfigBlock &block);
#endif
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