shared_ptr<FFmpegContent> c (new FFmpegContent (film, "test/data/test.mp4"));
film->set_container (Ratio::from_id ("185"));
film->set_audio_channels (6);
shared_ptr<FFmpegContent> c (new FFmpegContent (film, "test/data/test.mp4"));
film->set_container (Ratio::from_id ("185"));
film->set_audio_channels (6);