get Size of file from AudioSourceSDFat list

[hash6iron]

Hi @pschatzmann

Is possible to know size of each file register on AudioSourceSDFat object?
I means, I can see filename and index of this list of each mp3 file using a loop but, how can I see the size of each file? (see example below)

Thanks.

  // Declaration of source
  AudioSourceSDFat source;
   
  // Get total files registered in source
  int size = source.size();
   
  // Variables needed
  String fileName = "";
  int index = 0;
  int fileSize = 0;

  // Start loop
  for (int i = 0; i < size; i++) 
  {
      //pointer to index i
      source.setIndex(i);
      //getting filename
      fileName = source.toStr();
      fileSize = ?¿?¿?¿?
      }
  }

[pschatzmann]

setIndex returns a pointer to the Stream (which is a File):

  File *fp = (File*) source.setIndex(i);
  fileSize = fp->size();

[hash6iron]

Is necesery do source.begin() previous to manage all these above?

[hash6iron]

Hi @pschatzmann ,

I´m trying to read a source with 21 files but ESP32 crashes with "Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled." when read the size of indexed register. I check nullptr but not appears to work.

        File* pFile = (File*)source.setIndex(i);
        if (pFile != nullptr)
        {
          fileSize = pFile->size();
        }
        else
        {
          fileSize = 0;
        } 

A piece of my code (this fails with index=0 in fileSize = pFile->size(); but the name is red in logln line of the code.

    File* pFile = nullptr;
    size_t fileSize = 0;

    for (int i = 0; i < size; i++) 
    {
        // Point to the source
        pFile = (File*)source.setIndex(i);
        logln("Index " + String(i) + ": " + source.toStr())

        // Getting the size
        if (pFile != nullptr)
        {
          fileSize = pFile->size();
        }
        else
        {
          fileSize = 0; 
        }        
        
        // If is a ok file, register it
        if (fileSize > 0) 
        {
          audioList[i].filename = source.toStr();
          audioList[i].index = i;
          audioList[i].size = fileSize;
        }
    }

[hash6iron]

I try to read pFile->name() or pFile->path() and all crashed the Audiokit

[hash6iron]

I was solved. I change by.

  fileSize = fp->size();

And now works fine, because I´m using SDFat32