From 95230fe5db8aeda47aca18f613bd4309a17ee427 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 9 Feb 2026 23:34:03 +0100
Subject: Copy some more metadata from DCP into the film when requested.

---
 src/lib/copy_dcp_details_to_film.cc |  4 ++++
 src/lib/dcp_content.cc              | 37 +++++++++++++++++++++++++++++++++++++
 src/lib/dcp_content.h               | 21 +++++++++++++++++++++
 src/lib/dcp_examiner.cc             |  4 ++++
 src/lib/dcp_examiner.h              | 20 ++++++++++++++++++++
 5 files changed, 86 insertions(+)

(limited to 'src')

diff --git a/src/lib/copy_dcp_details_to_film.cc b/src/lib/copy_dcp_details_to_film.cc
index 67a207de1..cff2ea51c 100644
--- a/src/lib/copy_dcp_details_to_film.cc
+++ b/src/lib/copy_dcp_details_to_film.cc
@@ -68,6 +68,10 @@ copy_dcp_settings_to_film(shared_ptr<const DCPContent> dcp, shared_ptr<Film> fil
 
 	film->set_ratings(dcp->ratings());
 	film->set_content_versions(dcp->content_versions());
+	film->set_chain(dcp->chain());
+	film->set_distributor(dcp->distributor());
+	film->set_facility(dcp->facility());
+	film->set_luminance(dcp->luminance());
 }
 
 
diff --git a/src/lib/dcp_content.cc b/src/lib/dcp_content.cc
index cf1d208bf..ce4b552f9 100644
--- a/src/lib/dcp_content.cc
+++ b/src/lib/dcp_content.cc
@@ -39,6 +39,7 @@
 #include <dcp/reel_text_asset.h>
 #include <dcp/reel.h>
 #include <dcp/scope_guard.h>
+#include <dcp/types.h>
 #include <libxml++/libxml++.h>
 #include <fmt/format.h>
 #include <iterator>
@@ -172,6 +173,22 @@ DCPContent::DCPContent(cxml::ConstNodePtr node, boost::optional<boost::filesyste
 			_has_non_zero_entry_point[type] = non_zero->content() == "1";
 		} catch (MetadataError&) {}
 	}
+
+	if (auto chain = node->optional_string_child("Chain")) {
+		_chain = *chain;
+	}
+
+	if (auto distributor = node->optional_string_child("Distributor")) {
+		_distributor = *distributor;
+	}
+
+	if (auto facility = node->optional_string_child("Facility")) {
+		_facility = *facility;
+	}
+
+	if (auto luminance = node->optional_node_child("Luminance")) {
+		_luminance = dcp::Luminance(luminance);
+	}
 }
 
 void
@@ -334,6 +351,10 @@ DCPContent::examine(shared_ptr<const Film> film, shared_ptr<Job> job, bool toler
 		_ratings = examiner->ratings();
 		_content_versions = examiner->content_versions();
 		_has_non_zero_entry_point = examiner->has_non_zero_entry_point();
+		_chain = examiner->chain();
+		_distributor = examiner->distributor();
+		_facility = examiner->facility();
+		_luminance = examiner->luminance();
 	}
 
 	if (needed_assets == needs_assets()) {
@@ -472,6 +493,22 @@ DCPContent::as_xml(xmlpp::Element* element, bool with_paths, PathBehaviour path_
 			has->set_attribute("type", text_type_to_string(static_cast<TextType>(i)));
 		}
 	}
+
+	if (_chain) {
+		cxml::add_text_child(element, "Chain", *_chain);
+	}
+
+	if (_distributor) {
+		cxml::add_text_child(element, "Distributor", *_distributor);
+	}
+
+	if (_facility) {
+		cxml::add_text_child(element, "Facility", *_facility);
+	}
+
+	if (_luminance) {
+		_luminance->as_xml(element, "");
+	}
 }
 
 
diff --git a/src/lib/dcp_content.h b/src/lib/dcp_content.h
index 80b7f64a8..bac051eea 100644
--- a/src/lib/dcp_content.h
+++ b/src/lib/dcp_content.h
@@ -223,6 +223,22 @@ public:
 
 	void check_font_ids();
 
+	boost::optional<std::string> chain() const {
+		return _chain;
+	}
+
+	boost::optional<std::string> distributor() const {
+		return _distributor;
+	}
+
+	boost::optional<std::string> facility() const {
+		return _facility;
+	}
+
+	boost::optional<dcp::Luminance> luminance() const {
+		return _luminance;
+	}
+
 	std::list<dcpomatic::DCPTimePeriod> reels(std::shared_ptr<const Film> film) const;
 
 private:
@@ -274,6 +290,11 @@ private:
 
 	boost::optional<int> _active_audio_channels;
 	boost::optional<dcp::LanguageTag> _audio_language;
+
+	boost::optional<std::string> _chain;
+	boost::optional<std::string> _distributor;
+	boost::optional<std::string> _facility;
+	boost::optional<dcp::Luminance> _luminance;
 };
 
 
diff --git a/src/lib/dcp_examiner.cc b/src/lib/dcp_examiner.cc
index a5180822a..b749c9686 100644
--- a/src/lib/dcp_examiner.cc
+++ b/src/lib/dcp_examiner.cc
@@ -122,6 +122,10 @@ DCPExaminer::DCPExaminer(shared_ptr<const DCPContent> content, bool tolerant)
 	_cpl = selected_cpl->id();
 	_name = selected_cpl->content_title_text();
 	_content_kind = selected_cpl->content_kind();
+	_chain = selected_cpl->chain();
+	_distributor = selected_cpl->distributor();
+	_facility = selected_cpl->facility();
+	_luminance = selected_cpl->luminance();
 
 	LOG_GENERAL("Selected CPL {}", _cpl);
 
diff --git a/src/lib/dcp_examiner.h b/src/lib/dcp_examiner.h
index 8dd865762..7e73a8b09 100644
--- a/src/lib/dcp_examiner.h
+++ b/src/lib/dcp_examiner.h
@@ -200,6 +200,22 @@ public:
 		return _has_non_zero_entry_point;
 	}
 
+	boost::optional<std::string> chain() const {
+		return _chain;
+	}
+
+	boost::optional<std::string> distributor() const {
+		return _distributor;
+	}
+
+	boost::optional<std::string> facility() const {
+		return _facility;
+	}
+
+	boost::optional<dcp::Luminance> luminance() const {
+		return _luminance;
+	}
+
 	void add_fonts(std::shared_ptr<TextContent> content);
 
 private:
@@ -243,6 +259,10 @@ private:
 	dcp::Fraction _atmos_edit_rate;
 	EnumIndexedVector<bool, TextType> _has_non_zero_entry_point;
 	VideoRange _video_range = VideoRange::FULL;
+	boost::optional<std::string> _chain;
+	boost::optional<std::string> _distributor;
+	boost::optional<std::string> _facility;
+	boost::optional<dcp::Luminance> _luminance;
 
 	struct Font
 	{
-- 
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