shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
take_from_video_examiner (examiner);
take_from_audio_examiner (examiner);
shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
take_from_video_examiner (examiner);
take_from_audio_examiner (examiner);