WIP MP3 Player

main.cpp

#include <Arduino.h>
#include <ESP8266HTTPClient.h>
#include <AudioFileSourceSD.h>
#include <cstring>
#include <EDB.h>
#include "crc32.h"

using namespace std;

#define SD_CS     0
#define SPI_MOSI  8
#define SPI_MISO  7
#define SPI_SCK   6
#define I2S_DOUT  21
#define I2S_BLCK  16
#define I2S_LRC   17

File root;
File playlistDb;
uint32_t filesCrc;

void enumerateFiles(vector<string> &files, File dir);
uint32_t getFilesCrc(File dir, uint32_t previousCrc);
void updatePlaylistDb(const char* dbName);
void writer(unsigned long address, const byte* data, unsigned int recsize);
void reader(unsigned long address, byte* data, unsigned int recsize);

void setup()
{
  SPI.pins(SPI_SCK, SPI_MISO, SPI_MOSI, SD_CS);
  SD.begin(SD_CS);
  filesCrc = 0;
  root = SD.open("/");
}

void loop()
{

}

void updatePlaylistDb(const char* dbName)
{
  File db = SD.open("/playlist.db", FILE_WRITE);

}

uint32_t getFilesCrc(File dir, uint32_t previousCrc)
{
  File entry;
  uint32_t crc;

  while (!(entry = dir.openNextFile()))
  {
    if (entry.isFile())
    {
      char* ext = strrchr(entry.name(), '.') + 1; // get file extension

      // check file type
      if (strcasecmp(ext, "mp3") != 0 && strcasecmp(ext, "aac") != 0)
        continue;

        crc = crc32(entry.fullName(), strlen(entry.fullName()), previousCrc);
    }
    else
    {
      crc = getFilesCrc(entry, previousCrc);
    }
  }

  return crc;
}

void writer(unsigned long address, const byte* data, unsigned int recsize)
{
  playlistDb.seek(address);
  playlistDb.write(data, recsize);
  playlistDb.flush();
}

void reader(unsigned long address, byte* data, unsigned int recsize)
{
  playlistDb.seek(address);
  playlistDb.read(data,recsize);
}