Function main

tools/audio.cpp:239–318

}

int main(int argc, char *argv[]) {
  CoInitializeEx(nullptr, COINIT_MULTITHREADED | COINIT_SPEED_OVER_MEMORY);

  auto fg = util::fail_guard([]() {
    CoUninitialize();
  });

  if (argc > 1) {
    device_state_filter = 0;
  }

  // Set the locale to support wide characters
  std::setlocale(LC_ALL, "");

  for (auto x = 1; x < argc; ++x) {
    for (auto p = argv[x]; *p != '\0'; ++p) {
      if (*p == ' ') {
        *p = '-';

        continue;
      }

      *p = std::tolower(*p);
    }

    if (argv[x] == "active"sv) {
      device_state_filter |= DEVICE_STATE_ACTIVE;
    } else if (argv[x] == "disabled"sv) {
      device_state_filter |= DEVICE_STATE_DISABLED;
    } else if (argv[x] == "unplugged"sv) {
      device_state_filter |= DEVICE_STATE_UNPLUGGED;
    } else if (argv[x] == "not-present"sv) {
      device_state_filter |= DEVICE_STATE_NOTPRESENT;
    } else {
      print_help();
      return 2;
    }
  }

  HRESULT status;

  audio::device_enum_t device_enum;
  status = CoCreateInstance(
    CLSID_MMDeviceEnumerator,
    nullptr,
    CLSCTX_ALL,
    IID_IMMDeviceEnumerator,
    (void **) &device_enum
  );

  if (FAILED(status)) {
    std::cout << "Couldn't create Device Enumerator: [0x"sv << util::hex(status).to_string_view() << ']' << std::endl;

    return -1;
  }

  audio::collection_t collection;
  status = device_enum->EnumAudioEndpoints(eRender, device_state_filter, &collection);