isBuffered method

Implementation

bool isBuffered() {
  // Check enough pcm exists in queue
  final ffi.Pointer<ffi.UnsignedInt> buffered = malloc<ffi.UnsignedInt>();
  int status = ailiaSpeech.ailiaSpeechBuffered(ppAilia!.value, buffered);
  throwError("ailiaSpeechBuffered", status);
  if (buffered.value == 0) {
    malloc.free(buffered);
    return false;
  }
  malloc.free(buffered);
  return true;
}