import esp audio lib

2021-08-27 16:42:43 +02:00
parent 489174fdc8
commit 3d437de0e6
567 changed files with 267532 additions and 38 deletions
@@ -0,0 +1,98 @@
+/*
+  AudioFileSourceSTDIO
+  Input STDIO "file" to be used by AudioGenerator
+  Only for hot-based testing
+  
+  Copyright (C) 2017  Earle F. Philhower, III
+
+  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/>.
+*/
+
+#include <Arduino.h>
+#ifndef ARDUINO
+#include <time.h>
+
+#include "AudioFileSourceSTDIO.h"
+
+AudioFileSourceSTDIO::AudioFileSourceSTDIO()
+{
+  f = NULL;
+  srand(time(NULL));
+}
+
+AudioFileSourceSTDIO::AudioFileSourceSTDIO(const char *filename)
+{
+  open(filename);
+}
+
+bool AudioFileSourceSTDIO::open(const char *filename)
+{
+  f = fopen(filename, "rb");
+  return f;
+}
+
+AudioFileSourceSTDIO::~AudioFileSourceSTDIO()
+{
+  if (f) fclose(f);
+  f = NULL;
+}
+
+uint32_t AudioFileSourceSTDIO::read(void *data, uint32_t len)
+{
+//  if (rand() % 100 == 69) { // Give 0 data 1%
+//    printf("0 read\n");
+//    len = 0;
+//  } else if (rand() % 100 == 1) { // Give short reads 1%
+//    printf("0 read\n");
+//    len = 0;
+//  }
+  int ret = fread(reinterpret_cast<uint8_t*>(data), 1, len, f);
+//  if (ret && rand() % 100 < 5 ) {
+//    // We're really mean...throw bad data in the mix
+//    printf("bad data\n");
+//    for (int i=0; i<100; i++)
+//      *(reinterpret_cast<uint8_t*>(data) + (rand() % ret)) = rand();
+//  }
+  return ret;
+}
+
+bool AudioFileSourceSTDIO::seek(int32_t pos, int dir)
+{
+  return fseek(f, pos, dir) == 0;
+}
+
+bool AudioFileSourceSTDIO::close()
+{
+  fclose(f);
+  f = NULL;
+  return true;
+}
+
+bool AudioFileSourceSTDIO::isOpen()
+{
+  return f?true:false;
+}
+
+uint32_t AudioFileSourceSTDIO::getSize()
+{
+  if (!f) return 0;
+  uint32_t p = ftell(f);
+  fseek(f, 0, SEEK_END);
+  uint32_t len = ftell(f);
+  fseek(f, p, SEEK_SET);
+  return len;
+}
+
+
+#endif