X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_content.h;h=4c612cd3ee00eb62720fc35fe1759f5fd2cf1451;hb=0cbdfdd6c0ef9a1b72070ee741be76332491392a;hp=8bd5ef4fa9b05ab1ddd80dfc433fa94d793ddef7;hpb=254b3044d72de6b033d7c584f5abd2b9aa70aad5;p=dcpomatic.git

diff --git a/src/lib/ffmpeg_content.h b/src/lib/ffmpeg_content.h
index 8bd5ef4fa..4c612cd3e 100644
--- a/src/lib/ffmpeg_content.h
+++ b/src/lib/ffmpeg_content.h
@@ -54,12 +54,17 @@ public:
 		return boost::dynamic_pointer_cast<FFmpegContent> (Content::shared_from_this ());
 	}
 
+	boost::shared_ptr<const FFmpegContent> shared_from_this () const {
+		return boost::dynamic_pointer_cast<const FFmpegContent> (Content::shared_from_this ());
+	}
+
 	void examine (boost::shared_ptr<const Film> film, boost::shared_ptr<Job>);
 	void take_settings_from (boost::shared_ptr<const Content> c);
 	std::string summary () const;
 	std::string technical_summary () const;
 	void as_xml (xmlpp::Node *, bool with_paths) const;
 	DCPTime full_length (boost::shared_ptr<const Film> film) const;
+	DCPTime approximate_length () const;
 
 	std::string identifier () const;