mirror of
https://github.com/earlephilhower/libmad-8266.git
synced 2026-03-13 09:31:41 +08:00
dfcbff04e4
LIBMAD needs lots of memory for constants and internal variables, with both heap and stack really tight. Move all constants I can into PROGMEM, disable Layer-I and Layer-II decoders, move some things from the stack to heap, change some structures from char/short to ints to allow for PROGMEM easy access, and finally add a simple testbed. Tested with Newcleus' Jam On It, has 3K heap free. Needs memory optimization as well.
72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
/*
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AudioFileSourceSPIFFS
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Input SPIFFS "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 "AudioFileSourceSPIFFS.h"
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AudioFileSourceSPIFFS::AudioFileSourceSPIFFS()
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{
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}
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AudioFileSourceSPIFFS::AudioFileSourceSPIFFS(const char *filename)
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{
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open(filename);
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}
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bool AudioFileSourceSPIFFS::open(const char *filename)
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{
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SPIFFS.begin();
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f = SPIFFS.open(filename, "r");
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return f;
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}
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AudioFileSourceSPIFFS::~AudioFileSourceSPIFFS()
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{
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if (f) f.close();
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}
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uint32_t AudioFileSourceSPIFFS::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 AudioFileSourceSPIFFS::seek(int32_t pos, int dir)
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{
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return f.seek(pos, (dir==SEEK_SET)?SeekSet:(dir==SEEK_CUR)?SeekCur:SeekEnd);
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}
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bool AudioFileSourceSPIFFS::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 AudioFileSourceSPIFFS::isOpen()
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{
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return f?true:false;
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}
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uint32_t AudioFileSourceSPIFFS::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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