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inputsource.h
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inputsource.h
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/*
* Copyright (C) 2015, Mike Walters <[email protected]>
* Copyright (C) 2015, Jared Boone <[email protected]>
*
* This file is part of inspectrum.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <complex>
#include <QFile>
#include "samplesource.h"
class SampleAdapter {
public:
virtual size_t sampleSize() = 0;
virtual void copyRange(const void* const src, size_t start, size_t length, std::complex<float>* const dest) = 0;
};
class InputSource : public SampleSource<std::complex<float>>
{
private:
QFile *inputFile = nullptr;
size_t sampleCount = 0;
size_t sampleRate = 0;
uchar *mmapData = nullptr;
std::unique_ptr<SampleAdapter> sampleAdapter;
std::string _fmt;
public:
InputSource();
~InputSource();
void cleanup();
void openFile(const char *filename);
std::unique_ptr<std::complex<float>[]> getSamples(size_t start, size_t length);
size_t count() {
return sampleCount;
};
void setSampleRate(size_t rate);
void setFormat(std::string fmt);
size_t rate();
float relativeBandwidth() {
return 1;
}
};