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99 lines
2.2 KiB
C++
Executable File
99 lines
2.2 KiB
C++
Executable File
/*
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AudioFileSourceSTDIO
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Input STDIO "file" to be used by AudioGenerator
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Only for hot-based testing
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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 <Arduino.h>
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#ifndef ARDUINO
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#include <time.h>
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#include "AudioFileSourceSTDIO.h"
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AudioFileSourceSTDIO::AudioFileSourceSTDIO()
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{
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f = NULL;
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srand(time(NULL));
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}
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AudioFileSourceSTDIO::AudioFileSourceSTDIO(const char *filename)
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{
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open(filename);
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}
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bool AudioFileSourceSTDIO::open(const char *filename)
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{
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f = fopen(filename, "rb");
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return f;
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}
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AudioFileSourceSTDIO::~AudioFileSourceSTDIO()
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{
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if (f) fclose(f);
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f = NULL;
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}
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uint32_t AudioFileSourceSTDIO::read(void *data, uint32_t len)
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{
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// if (rand() % 100 == 69) { // Give 0 data 1%
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// printf("0 read\n");
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// len = 0;
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// } else if (rand() % 100 == 1) { // Give short reads 1%
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// printf("0 read\n");
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// len = 0;
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// }
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int ret = fread(reinterpret_cast<uint8_t*>(data), 1, len, f);
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// if (ret && rand() % 100 < 5 ) {
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// // We're really mean...throw bad data in the mix
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// printf("bad data\n");
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// for (int i=0; i<100; i++)
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// *(reinterpret_cast<uint8_t*>(data) + (rand() % ret)) = rand();
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// }
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return ret;
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}
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bool AudioFileSourceSTDIO::seek(int32_t pos, int dir)
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{
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return fseek(f, pos, dir) == 0;
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}
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bool AudioFileSourceSTDIO::close()
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{
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fclose(f);
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f = NULL;
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return true;
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}
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bool AudioFileSourceSTDIO::isOpen()
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{
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return f?true:false;
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}
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uint32_t AudioFileSourceSTDIO::getSize()
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{
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if (!f) return 0;
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uint32_t p = ftell(f);
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fseek(f, 0, SEEK_END);
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uint32_t len = ftell(f);
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fseek(f, p, SEEK_SET);
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return len;
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}
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#endif
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