- boost::shared_ptr<Content> selected_content ();
- boost::shared_ptr<VideoContent> selected_video_content ();
- boost::shared_ptr<AudioContent> selected_audio_content ();
- boost::shared_ptr<SubtitleContent> selected_subtitle_content ();
+ ContentList selected_content ();
+ VideoContentList selected_video_content ();
+ AudioContentList selected_audio_content ();
+ SubtitleContentList selected_subtitle_content ();
+ FFmpegContentList selected_ffmpeg_content ();