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/* Copyright (C) 2015-2017 Sergey V. Mikayev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef RESAMPLER_STAGE_H
#define RESAMPLER_STAGE_H
#include "FloatSampleProvider.h"
namespace SRCTools {
/** Interface defines an abstract source of samples. It can either define a single channel stream or a stream with interleaved channels. */
class ResamplerStage {
public:
virtual ~ResamplerStage() {};
/** Returns a lower estimation of required number of input samples to produce the specified number of output samples. */
virtual unsigned int estimateInLength(const unsigned int outLength) const = 0;
/** Generates output samples. The arguments are adjusted in accordance with the number of samples processed. */
virtual void process(const FloatSample *&inSamples, unsigned int &inLength, FloatSample *&outSamples, unsigned int &outLength) = 0;
};
} // namespace SRCTools
#endif // RESAMPLER_STAGE_H
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