58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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* Copyright 2003-2019 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
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#define MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
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#include "Resampler.hxx"
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#include "Buffer.hxx"
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#include "AudioFormat.hxx"
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#include "util/Compiler.h"
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#include <samplerate.h>
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struct ConfigBlock;
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/**
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* A resampler using libsamplerate.
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*/
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class LibsampleratePcmResampler final : public PcmResampler {
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unsigned src_rate, dest_rate;
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unsigned channels;
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SRC_STATE *state;
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SRC_DATA data;
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PcmBuffer buffer;
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public:
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AudioFormat Open(AudioFormat &af, unsigned new_sample_rate) override;
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void Close() noexcept override;
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void Reset() noexcept override;
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ConstBuffer<void> Resample(ConstBuffer<void> src) override;
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private:
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ConstBuffer<float> Resample2(ConstBuffer<float> src);
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};
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void
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pcm_resample_lsr_global_init(const ConfigBlock &block);
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#endif
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