-/** @param include_font true to refer to and export any font file (for Interop; ignored for SMPTE) */
-SubtitleEncoder::SubtitleEncoder (shared_ptr<const Film> film, shared_ptr<Job> job, boost::filesystem::path output, bool split_reels, bool include_font)
+
+/** @param output Directory, if there will be multiple output files, or a filename.
+ * @param initial_name Hint that may be used to create filenames, if @ref output is a directory.
+ * @param include_font true to refer to and export any font file (for Interop; ignored for SMPTE).
+ */
+SubtitleEncoder::SubtitleEncoder (shared_ptr<const Film> film, shared_ptr<Job> job, boost::filesystem::path output, string initial_name, bool split_reels, bool include_font)