Allow specifying and writing sign language video language metadata (#2062).

[dcpomatic.git] / src / lib / film.cc

diff --git a/src/lib/film.cc b/src/lib/film.cc
index 44c49220b94f6836935d132341dc7ff7d23aabe8..acfea99918d0baeebc833deea4c759b218876dd4 100644 (file)
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -481,6 +481,9 @@ Film::metadata (bool with_content_paths) const
        if (_release_territory) {
                root->add_child("ReleaseTerritory")->add_child_text(_release_territory->subtag());
        }
+       if (_sign_language_video_language) {
+               root->add_child("SignLanguageVideoLanguage")->add_child_text(_sign_language_video_language->to_string());
+       }
        root->add_child("VersionNumber")->add_child_text(raw_convert<string>(_version_number));
        root->add_child("Status")->add_child_text(dcp::status_to_string(_status));
        if (_chain) {
@@ -662,6 +665,11 @@ Film::read_metadata (optional<boost::filesystem::path> path)
                _release_territory = dcp::LanguageTag::RegionSubtag (*release_territory);
        }
 
+       auto sign_language_video_language = f.optional_string_child("SignLanguageVideoLanguage");
+       if (sign_language_video_language) {
+               _sign_language_video_language = dcp::LanguageTag(*sign_language_video_language);
+       }
+
        _version_number = f.optional_number_child<int>("VersionNumber").get_value_or(0);
 
        auto status = f.optional_string_child("Status");
@@ -2145,3 +2153,18 @@ Film::set_audio_language (optional<dcp::LanguageTag> language)
        _audio_language = language;
 }
 
+
+bool
+Film::has_sign_language_video_channel () const
+{
+       return _audio_channels >= static_cast<int>(dcp::Channel::SIGN_LANGUAGE);
+}
+
+
+void
+Film::set_sign_language_video_language (optional<dcp::LanguageTag> lang)
+{
+       FilmChangeSignaller ch (this, Property::SIGN_LANGUAGE_VIDEO_LANGUAGE);
+       _sign_language_video_language = lang;
+}
+