+extern std::string video_asset_filename (std::shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, boost::optional<std::string> content_summary);
+extern std::string audio_asset_filename (std::shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, boost::optional<std::string> content_summary);
+extern std::string subtitle_asset_filename (std::shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, boost::optional<std::string> content_summary, std::string extension);
+extern std::string atmos_asset_filename (std::shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, boost::optional<std::string> content_summary);
+extern float relaxed_string_to_float (std::string);
+extern std::string careful_string_filter (std::string);
+extern std::pair<int, int> audio_channel_types (std::list<int> mapped, int channels);
+extern std::shared_ptr<AudioBuffers> remap (std::shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map);
+extern Eyes increment_eyes (Eyes e);
+extern size_t utf8_strlen (std::string s);
+extern std::string day_of_week_to_string (boost::gregorian::greg_weekday d);
+extern void emit_subtitle_image (dcpomatic::ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, std::shared_ptr<TextDecoder> decoder);
+extern bool show_jobs_on_console (bool progress);
+extern void copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)>);
+extern dcp::Size scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta);
+extern dcp::DecryptedKDM decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm);
+extern boost::filesystem::path default_font_file ();
+extern std::string to_upper (std::string s);
+extern void start_of_thread (std::string name);
+extern void capture_asdcp_logs ();
+extern std::string error_details(boost::system::error_code ec);
+extern bool contains_assetmap(boost::filesystem::path dir);
+
+template <class T>
+std::list<T>
+vector_to_list (std::vector<T> v)
+{
+ std::list<T> l;
+ for (auto& i: v) {
+ l.push_back (i);
+ }
+ return l;
+}
+
+template <class T>
+std::vector<T>
+list_to_vector (std::list<T> v)
+{
+ std::vector<T> l;
+ for (auto& i: v) {
+ l.push_back (i);
+ }
+ return l;
+}