message: Check for null pointers in OTM
diff: @@ -50,10 +50,12 @@ namespace erizo {
  bool OneToManyProcessor::isSSRCFromAudio(uint32_t ssrc) {
  std::map<std::string, std::shared_ptr<MediaSink>>::iterator it;
  for (it = subscribers.begin(); it != subscribers.end(); ++it) {
  + if ((*it).second != nullptr) {
  if ((*it).second->getAudioSinkSSRC() == ssrc) {
  return true;
  }
  }
  + }
  return false;
  }
  