Add Film::closed_caption_languages().

2 files changed, 18 insertions, 0 deletions

diff --git a/src/lib/film.cc b/src/lib/film.cc
index daa88282d..dabef62bb 100644
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -815,6 +815,22 @@ Film::subtitle_languages () const
 }
 
 
+vector<dcp::LanguageTag>
+Film::closed_caption_languages() const
+{
+	vector<dcp::LanguageTag> result;
+	for (auto i: content()) {
+		for (auto text: i->text) {
+			if (text->use() && text->type() == TextType::CLOSED_CAPTION && text->dcp_track() && text->dcp_track()->language) {
+				result.push_back(*text->dcp_track()->language);
+			}
+		}
+	}
+
+	return result;
+}
+
+
 /** @return a ISDCF-compliant name for a DCP of this film */
 string
 Film::isdcf_name (bool if_created_now) const
diff --git a/src/lib/film.h b/src/lib/film.h
index 22b58f746..5c230614d 100644
--- a/src/lib/film.h
+++ b/src/lib/film.h
@@ -192,6 +192,8 @@ public:
 
 	/** @return pair containing the main subtitle language, and additional languages */
 	std::pair<boost::optional<dcp::LanguageTag>, std::vector<dcp::LanguageTag>> subtitle_languages () const;
+	/** @return all closed caption languages in the film */
+	std::vector<dcp::LanguageTag> closed_caption_languages() const;
 
 	std::string content_summary (dcpomatic::DCPTimePeriod period) const;