52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
/*
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AudioFileSource
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Base class of an input "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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#ifndef _AUDIOFILESOURCE_H
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#define _AUDIOFILESOURCE_H
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#include <Arduino.h>
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#include "AudioStatus.h"
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class AudioFileSource
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{
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public:
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AudioFileSource() {};
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virtual ~AudioFileSource() {};
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virtual bool open(const char *filename) { (void)filename; return false; };
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virtual uint32_t read(void *data, uint32_t len) { (void)data; (void)len; return 0; };
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virtual uint32_t readNonBlock(void *data, uint32_t len) { return read(data, len); };
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virtual bool seek(int32_t pos, int dir) { (void)pos; (void)dir; return false; };
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virtual bool close() { return false; };
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virtual bool isOpen() { return false; };
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virtual uint32_t getSize() { return 0; };
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virtual uint32_t getPos() { return 0; };
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virtual bool loop() { return true; };
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public:
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virtual bool RegisterMetadataCB(AudioStatus::metadataCBFn fn, void *data) { return cb.RegisterMetadataCB(fn, data); }
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virtual bool RegisterStatusCB(AudioStatus::statusCBFn fn, void *data) { return cb.RegisterStatusCB(fn, data); }
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protected:
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AudioStatus cb;
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};
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#endif
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