Loading all files .wav from SD Cards samples folder

[baesek]

Hi, I am trying to create a function which loads all samples from sd card.
This is what i have now:

void mf_LoadSample(char *fileName, int offset) {
  if (fileName[0] != '.') {
    char filePath[64];
    static const char *dirName  = "/samples/";
    strcpy(filePath, dirName);
    strcat(filePath, fileName);
    Serial.printf("mf_LoadSample with filename %s \n", filePath);
   // Sampler_LoadPatchFile(filePath);
  }
}
void mf_LoadAvailableSamples() {
  Serial.printf("List all .wav filenames in /samples:\n");
  PatchManager_GetFileListExt(mf_LoadSample, 0);
}

When I run mf_LoadAvailableSamples() I get all wav file paths in the serial output of the mf_LoadSample() function.
The problem is, that as soon as I uncomment the Sampler_LoadPatchFile(filePath); line in the mf_LoadSample function
only the first sample is loaded. The rest is just ignored.
I think it has somehow to do with that the mf_LoadSample function is passed as a callback but I dont know how to solve the problem. Or is there a problem with missing termination characters?

Can someone help me?

Thanks in advance,
paul

---

I did it now in a way which seems to me very memory wasting, I can imagine there are much nicer ways to do it, but it works. Please let me know if you know better ways of doing it.

const uint8_t MAX_COLLECTED_FILES = 99;
char collectedFileNames[MAX_COLLECTED_FILES][64];
uint8_t collectCounter = 0;

void mf_CollectWavFile(char *fileName, int offset) {
  if (fileName[0] != '.') {
    char filePath[64];
    filePath[0] = '\0';
    static const char *dirName  = "/samples/";
    strcpy(filePath, dirName);
    strcat(filePath, fileName);
    Serial.printf("Collect sample with filename %s \n", filePath);
    strcpy(collectedFileNames[collectCounter], filePath);
    collectCounter++;
  }
}
void mf_LoadAvailableSamples() {
  // Init empty filenames
  for (uint8_t i = 0; i < 100; i++) {
    collectedFileNames[i][0] = 0;
  }
  // Start Collecting all available Filenames
  PatchManager_GetFileListExt(mf_CollectWavFile, 0);
  // Load wav files
  for (uint8_t i = 0; i < MAX_COLLECTED_FILES; i++) {
    if (collectedFileNames[i][0] != 0) {
      Serial.printf("Load sample with filename %s \n", collectedFileNames[i]);
      Sampler_LoadPatchFile(collectedFileNames[i]);
    }
  }
}