Function IsSpectralEXR

Source/ThirdParty/tinyexr.h:11291–11312

Check if file contains spectral data

// Check if file contains spectral data
int IsSpectralEXR(const char *filename) {
  EXRVersion version;
  int ret = ParseEXRVersionFromFile(&version, filename);
  if (ret != TINYEXR_SUCCESS) return ret;

  const char *err = NULL;
  EXRHeader header;
  InitEXRHeader(&header);

  ret = ParseEXRHeaderFromFile(&header, &version, filename, &err);
  if (ret != TINYEXR_SUCCESS) {
    if (err) FreeEXRErrorMessage(err);
    return ret;
  }

  // Check for spectralLayoutVersion attribute
  int is_spectral = (FindCustomAttribute(&header, "spectralLayoutVersion") != NULL);

  FreeEXRHeader(&header);

  return is_spectral ? TINYEXR_SUCCESS : TINYEXR_ERROR_INVALID_DATA;
}

// Check if memory contains spectral EXR data
int IsSpectralEXRFromMemory(const unsigned char *memory, size_t size) {