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/*
* Copyright 2003-2017 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_GLUE_RESAMPLER_HXX
#define MPD_GLUE_RESAMPLER_HXX
#include "check.h"
#include "AudioFormat.hxx"
#include "FormatConverter.hxx"
class PcmResampler;
template<typename T> struct ConstBuffer;
/**
* A glue class that integrates a #PcmResampler and automatically
* converts source data to the sample format required by the
* #PcmResampler instance.
*/
class GluePcmResampler {
PcmResampler *const resampler;
SampleFormat src_sample_format, requested_sample_format;
SampleFormat output_sample_format;
/**
* This object converts input data to the sample format
* requested by the #PcmResampler.
*/
PcmFormatConverter format_converter;
public:
GluePcmResampler();
~GluePcmResampler() noexcept;
void Open(AudioFormat src_format, unsigned new_sample_rate);
void Close() noexcept;
SampleFormat GetOutputSampleFormat() const noexcept {
return output_sample_format;
}
/**
* @see PcmResampler::Reset()
*/
void Reset() noexcept;
ConstBuffer<void> Resample(ConstBuffer<void> src);
ConstBuffer<void> Flush();
};
#endif
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