From 0a8f2a1a2058f0461a7f978295e31af34a03bb40 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 15 Apr 2024 23:29:36 +0200
Subject: Add Dolby EDR metadata support (GH #12).

---
 src/cpl.cc | 5 +++++
 src/cpl.h  | 9 +++++++++
 2 files changed, 14 insertions(+)

(limited to 'src')

diff --git a/src/cpl.cc b/src/cpl.cc
index da4e0563..5ff86fda 100644
--- a/src/cpl.cc
+++ b/src/cpl.cc
@@ -370,6 +370,7 @@ CPL::read_composition_metadata_asset (cxml::ConstNodePtr node)
 	};
 
 	_sign_language_video_language = extension_metadata("http://isdcf.com/2017/10/SignLanguageVideo", "Sign Language Video", "Language Tag");
+	_dolby_edr_image_transfer_function = extension_metadata("http://www.dolby.com/schemas/2014/EDR-Metadata", "Dolby EDR", "image transfer function");
 }
 
 
@@ -568,6 +569,10 @@ CPL::maybe_write_composition_metadata_asset(xmlpp::Element* node, bool include_m
 		add_extension_metadata ("http://isdcf.com/2017/10/SignLanguageVideo", "Sign Language Video", "Language Tag", *_sign_language_video_language);
 	}
 
+	if (_dolby_edr_image_transfer_function) {
+		add_extension_metadata("http://www.dolby.com/schemas/2014/EDR-Metadata", "Dolby EDR", "image transfer function", *_dolby_edr_image_transfer_function);
+	}
+
 	if (_reels.front()->main_sound()) {
 		auto asset = _reels.front()->main_sound()->asset();
 		if (asset && include_mca_subdescriptors) {
diff --git a/src/cpl.h b/src/cpl.h
index 25c294eb..fb4f3376 100644
--- a/src/cpl.h
+++ b/src/cpl.h
@@ -326,6 +326,14 @@ public:
 		return _sign_language_video_language;
 	}
 
+	void set_dolby_edr_image_transfer_function(std::string function) {
+		_dolby_edr_image_transfer_function = function;
+	}
+
+	boost::optional<std::string> dolby_edr_image_transfer_function() const {
+		return _dolby_edr_image_transfer_function;
+	}
+
 	Standard standard () const {
 		return _standard;
 	}
@@ -383,6 +391,7 @@ private:
 	/* See note for _release_territory above */
 	std::vector<std::string> _additional_subtitle_languages;
 	boost::optional<std::string> _sign_language_video_language;
+	boost::optional<std::string> _dolby_edr_image_transfer_function;
 	bool _read_composition_metadata = false;
 
 	std::vector<std::shared_ptr<Reel>> _reels;
-- 
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