79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/*
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AudioFileSourceSPIFFS
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Input SD card "file" to be used by AudioGenerator
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Copyright (C) 2017 Earle F. Philhower, III
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "AudioFileSourceSD.h"
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AudioFileSourceSD::AudioFileSourceSD()
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{
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}
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AudioFileSourceSD::AudioFileSourceSD(const char *filename)
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{
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open(filename);
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}
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bool AudioFileSourceSD::open(const char *filename)
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{
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f = SD.open(filename, FILE_READ);
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return f;
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}
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AudioFileSourceSD::~AudioFileSourceSD()
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{
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if (f) f.close();
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}
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uint32_t AudioFileSourceSD::read(void *data, uint32_t len)
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{
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return f.read(reinterpret_cast<uint8_t*>(data), len);
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}
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bool AudioFileSourceSD::seek(int32_t pos, int dir)
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{
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if (!f) return false;
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if (dir==SEEK_SET) return f.seek(pos);
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else if (dir==SEEK_CUR) return f.seek(f.position() + pos);
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else if (dir==SEEK_END) return f.seek(f.size() + pos);
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return false;
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}
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bool AudioFileSourceSD::close()
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{
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f.close();
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return true;
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}
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bool AudioFileSourceSD::isOpen()
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{
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return f?true:false;
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}
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uint32_t AudioFileSourceSD::getSize()
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{
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if (!f) return 0;
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return f.size();
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}
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uint32_t AudioFileSourceSD::getPos()
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{
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if (!f) return 0;
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return f.position();
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}
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