Add Dolby EDR metadata support (GH #12).

4 files changed, 99 insertions, 0 deletions

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;
diff --git a/test/cpl_metadata_test.cc b/test/cpl_metadata_test.cc
index f704fc9a..a811e56f 100644
--- a/test/cpl_metadata_test.cc
+++ b/test/cpl_metadata_test.cc
@@ -467,3 +467,20 @@ BOOST_AUTO_TEST_CASE(check_sign_language_video_language)
 	BOOST_CHECK_EQUAL(check.sign_language_video_language().get_value_or(""), "es-PT");
 
 }
+
+
+BOOST_AUTO_TEST_CASE(check_dolby_edr_metadata)
+{
+	dcp::CPL cpl("test/ref/cpl_metadata_test3.xml");
+	cpl.set_dolby_edr_image_transfer_function("PQ10K");
+	cpl.write_xml("build/test/check_dolby_edr_metadata.xml", {});
+	check_xml(
+		dcp::file_to_string("test/ref/cpl_metadata_test5.xml"),
+		dcp::file_to_string("build/test/check_dolby_edr_metadata.xml"),
+		{"Id"}
+		);
+
+	dcp::CPL check("build/test/check_dolby_edr_metadata.xml");
+	BOOST_CHECK_EQUAL(check.dolby_edr_image_transfer_function().get_value_or(""), "PQ10K");
+}
+
diff --git a/test/ref/cpl_metadata_test5.xml b/test/ref/cpl_metadata_test5.xml
new file mode 100644
index 00000000..55209e53
--- /dev/null
+++ b/test/ref/cpl_metadata_test5.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CompositionPlaylist xmlns="http://www.smpte-ra.org/schemas/429-7/2006/CPL">
+  <Id>urn:uuid:81fb54df-e1bf-4647-8788-ea7ba154375b</Id>
+  <AnnotationText></AnnotationText>
+  <IssueDate>2020-08-28T13:35:06+02:00</IssueDate>
+  <Issuer>libdcp1.6.4devel</Issuer>
+  <Creator>libdcp1.6.4devel</Creator>
+  <ContentTitleText></ContentTitleText>
+  <ContentKind>feature</ContentKind>
+  <ContentVersion>
+    <Id>id</Id>
+    <LabelText>version</LabelText>
+  </ContentVersion>
+  <RatingList/>
+  <ReelList>
+    <Reel>
+      <Id>urn:uuid:46c3eb45-15e5-47d6-8684-d8641e4dc516</Id>
+      <AssetList>
+        <MainPicture>
+          <Id>urn:uuid:e98d059d-645f-4343-a30f-edc61d58b8e0</Id>
+          <EditRate>24 1</EditRate>
+          <IntrinsicDuration>24</IntrinsicDuration>
+          <EntryPoint>0</EntryPoint>
+          <Duration>24</Duration>
+          <Hash>JtPL3uT3jyKMLysaqgdBWQb/n2E=</Hash>
+          <FrameRate>24 1</FrameRate>
+          <ScreenAspectRatio>1998 1080</ScreenAspectRatio>
+        </MainPicture>
+        <meta:CompositionMetadataAsset xmlns:meta="http://www.smpte-ra.org/schemas/429-16/2014/CPL-Metadata">
+          <Id>urn:uuid:d36f4bb3-c4fa-4a95-9915-6fec3110cd71</Id>
+          <EditRate>24 1</EditRate>
+          <IntrinsicDuration>24</IntrinsicDuration>
+          <meta:FullContentTitleText/>
+          <meta:MainSoundConfiguration>71/L,R,C,LFE,-,-,-,-,-,-,-,-,-,FSKSync,-,-</meta:MainSoundConfiguration>
+          <meta:MainSoundSampleRate>48000 1</meta:MainSoundSampleRate>
+          <meta:MainPictureStoredArea>
+            <meta:Width>1998</meta:Width>
+            <meta:Height>1080</meta:Height>
+          </meta:MainPictureStoredArea>
+          <meta:MainPictureActiveArea>
+            <meta:Width>1440</meta:Width>
+            <meta:Height>1080</meta:Height>
+          </meta:MainPictureActiveArea>
+          <meta:ExtensionMetadataList>
+            <meta:ExtensionMetadata scope="http://isdcf.com/ns/cplmd/app">
+              <meta:Name>Application</meta:Name>
+              <meta:PropertyList>
+                <meta:Property>
+                  <meta:Name>DCP Constraints Profile</meta:Name>
+                  <meta:Value>SMPTE-RDD-52:2020-Bv2.1</meta:Value>
+                </meta:Property>
+              </meta:PropertyList>
+            </meta:ExtensionMetadata>
+            <meta:ExtensionMetadata scope="http://www.dolby.com/schemas/2014/EDR-Metadata">
+              <meta:Name>Dolby EDR</meta:Name>
+              <meta:PropertyList>
+                <meta:Property>
+                  <meta:Name>image transfer function</meta:Name>
+                  <meta:Value>PQ10K</meta:Value>
+                </meta:Property>
+              </meta:PropertyList>
+            </meta:ExtensionMetadata>
+          </meta:ExtensionMetadataList>
+        </meta:CompositionMetadataAsset>
+      </AssetList>
+    </Reel>
+  </ReelList>
+</CompositionPlaylist>