extern std::map<std::string, std::string> split_get_request (std::string url);
extern std::string video_asset_filename (boost::shared_ptr<dcp::PictureAsset> asset);
extern std::string audio_asset_filename (boost::shared_ptr<dcp::SoundAsset> asset);
-extern std::string subtitle_content_filename (boost::shared_ptr<dcp::SubtitleAsset> content);
#endif