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59 lines
2.6 KiB
C++
59 lines
2.6 KiB
C++
/***************************************************************************
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* Copyright (C) 2008 by Sindre Aamås *
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* sinamas@users.sourceforge.net *
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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 version 2 as *
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* published by the Free Software Foundation. *
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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 version 2 for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* version 2 along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef RESAMPLER_INFO_H
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#define RESAMPLER_INFO_H
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#include <cstddef>
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class Resampler;
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/**
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* Used for creating instances of resamplers, and getting information on
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* available resamplers.
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*/
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struct ResamplerInfo {
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/** Number of interleaved channels per audio sample (frame) */
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enum { channels = 2 };
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/** Short character string description of the resampler. */
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char const *desc;
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/**
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* Points to a function that can be used to create an instance of the resampler.
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*
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* @param inRate The input sampling rate.
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* @param outRate The desired output sampling rate.
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* @param periodSize The maximum number of input samples to resample at a time/The
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* maximal inlen passed to Resampler::resample.
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* @return Pointer to the created instance on the free store.
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*/
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Resampler * (*create)(long inRate, long outRate, std::size_t periodSize);
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/** Returns the number of ResamplerInfos that can be gotten with get(). */
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static std::size_t num() { return num_; }
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/** Returns ResamplerInfo number n. Where n is less than num(). */
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static ResamplerInfo const & get(std::size_t n) { return resamplers_[n]; }
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private:
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static ResamplerInfo const resamplers_[];
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static std::size_t const num_;
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};
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#endif
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