Boolean RTPSource::lookupByName(UsageEnvironment& env,
				char const* sourceName,
				RTPSource*& resultSource) {
  resultSource = NULL; // unless we succeed

  MediaSource* source;
  if (!MediaSource::lookupByName(env, sourceName, source)) return False;

  if (!source->isRTPSource()) {
    env.setResultMsg(sourceName, " is not a RTP source");
    return False;
  }

  resultSource = (RTPSource*)source;
  return True;
}
Boolean ADTSAudioFileSink::sourceIsCompatibleWithUs(MediaSource& source) {
    // The input source must be a MPEG4GenericRTPSource
    return source.isRTPSource();
}