Verify the XML of subtitle files.

5 files changed, 831 insertions, 4 deletions

diff --git a/src/verify.cc b/src/verify.cc
index c06b7ff9..11eb75d2 100644
--- a/src/verify.cc
+++ b/src/verify.cc
@@ -37,6 +37,8 @@
 #include "reel.h"
 #include "reel_picture_asset.h"
 #include "reel_sound_asset.h"
+#include "reel_subtitle_asset.h"
+#include "interop_subtitle_asset.h"
 #include "mono_picture_asset.h"
 #include "mono_picture_frame.h"
 #include "stereo_picture_asset.h"
@@ -61,6 +63,7 @@
 #include <xercesc/dom/DOMAttr.hpp>
 #include <xercesc/dom/DOMErrorHandler.hpp>
 #include <xercesc/framework/LocalFileInputSource.hpp>
+#include <xercesc/framework/MemBufInputSource.hpp>
 #include <boost/noncopyable.hpp>
 #include <boost/foreach.hpp>
 #include <boost/algorithm/string.hpp>
@@ -200,6 +203,8 @@ public:
 		add("http://www.digicine.com/PROTO-ASDCP-CPL-20040511.xsd", "PROTO-ASDCP-CPL-20040511.xsd");
 		add("http://www.digicine.com/PROTO-ASDCP-PKL-20040311.xsd", "PROTO-ASDCP-PKL-20040311.xsd");
 		add("http://www.digicine.com/PROTO-ASDCP-AM-20040311.xsd", "PROTO-ASDCP-AM-20040311.xsd");
+		add("interop-subs", "DCSubtitle.v1.mattsson.xsd");
+		add("http://www.smpte-ra.org/schemas/428-7/2010/DCST.xsd", "SMPTE-428-7-2010-DCST.xsd");
 	}
 
 	InputSource* resolveEntity(XMLCh const *, XMLCh const * system_id)
@@ -224,9 +229,25 @@ private:
 	boost::filesystem::path _xsd_dtd_directory;
 };
 
-static
+
+static void
+parse (XercesDOMParser& parser, boost::filesystem::path xml)
+{
+	parser.parse(xml.string().c_str());
+}
+
+
+static void
+parse (XercesDOMParser& parser, std::string xml)
+{
+	xercesc::MemBufInputSource buf(reinterpret_cast<unsigned char const*>(xml.c_str()), xml.size(), "");
+	parser.parse(buf);
+}
+
+
+template <class T>
 void
-validate_xml (boost::filesystem::path xml_file, boost::filesystem::path xsd_dtd_directory, list<VerificationNote>& notes)
+validate_xml (T xml, boost::filesystem::path xsd_dtd_directory, list<VerificationNote>& notes)
 {
 	try {
 		XMLPlatformUtils::Initialize ();
@@ -253,6 +274,8 @@ validate_xml (boost::filesystem::path xml_file, boost::filesystem::path xsd_dtd_
 		schema["http://www.digicine.com/PROTO-ASDCP-CPL-20040511#"] = "PROTO-ASDCP-CPL-20040511.xsd";
 		schema["http://www.digicine.com/PROTO-ASDCP-PKL-20040311#"] = "PROTO-ASDCP-PKL-20040311.xsd";
 		schema["http://www.digicine.com/PROTO-ASDCP-AM-20040311#"] = "PROTO-ASDCP-AM-20040311.xsd";
+		schema["interop-subs"] = "DCSubtitle.v1.mattsson.xsd";
+		schema["http://www.smpte-ra.org/schemas/428-7/2010/DCST.xsd"] = "DCDMSubtitle-2010.xsd";
 
 		string locations;
 		for (map<string, string>::const_iterator i = schema.begin(); i != schema.end(); ++i) {
@@ -271,7 +294,7 @@ validate_xml (boost::filesystem::path xml_file, boost::filesystem::path xsd_dtd_
 
 		try {
 			parser.resetDocumentPool();
-			parser.parse(xml_file.string().c_str());
+			parse(parser, xml);
 		} catch (XMLException& e) {
 			throw MiscError(xml_ch_to_string(e.getMessage()));
 		} catch (DOMException& e) {
@@ -289,7 +312,7 @@ validate_xml (boost::filesystem::path xml_file, boost::filesystem::path xsd_dtd_
 				VerificationNote::VERIFY_ERROR,
 				VerificationNote::XML_VALIDATION_ERROR,
 				i.message(),
-				xml_file,
+				xml,
 				i.line()
 				)
 			);
@@ -487,6 +510,23 @@ verify_main_sound_asset (
 }
 
 
+static void
+verify_main_subtitle_asset (
+	shared_ptr<const Reel> reel,
+	function<void (string, optional<boost::filesystem::path>)> stage,
+	boost::filesystem::path xsd_dtd_directory,
+	list<VerificationNote>& notes
+	)
+{
+	shared_ptr<ReelSubtitleAsset> reel_asset = reel->main_subtitle ();
+	stage ("Checking subtitle XML", reel->main_subtitle()->asset()->file());
+	/* Note: we must not use SubtitleAsset::xml_as_string() here as that will mean the data on disk
+	 * gets passed through libdcp which may clean up and therefore hide errors.
+	 */
+	validate_xml (reel->main_subtitle()->asset()->raw_xml(), xsd_dtd_directory, notes);
+}
+
+
 list<VerificationNote>
 dcp::verify (
 	vector<boost::filesystem::path> directories,
@@ -556,9 +596,14 @@ dcp::verify (
 						verify_main_picture_asset (dcp, reel, stage, progress, notes);
 					}
 				}
+
 				if (reel->main_sound() && reel->main_sound()->asset_ref().resolved()) {
 					verify_main_sound_asset (dcp, reel, stage, progress, notes);
 				}
+
+				if (reel->main_subtitle() && reel->main_subtitle()->asset_ref().resolved()) {
+					verify_main_subtitle_asset (reel, stage, xsd_dtd_directory, notes);
+				}
 			}
 		}
 
diff --git a/test/data/broken_smpte.mxf b/test/data/broken_smpte.mxf
new file mode 100644
index 00000000..f647349d
--- /dev/null
+++ b/test/data/broken_smpte.mxf
diff --git a/test/verify_test.cc b/test/verify_test.cc
index b8a354ad..d744eff6 100644
--- a/test/verify_test.cc
+++ b/test/verify_test.cc
@@ -41,6 +41,9 @@
 #include "openjpeg_image.h"
 #include "mono_picture_asset.h"
 #include "mono_picture_asset_writer.h"
+#include "interop_subtitle_asset.h"
+#include "smpte_subtitle_asset.h"
+#include "reel_subtitle_asset.h"
 #include "compose.hpp"
 #include <boost/test/unit_test.hpp>
 #include <boost/foreach.hpp>
@@ -624,3 +627,111 @@ BOOST_AUTO_TEST_CASE (verify_test17)
 	BOOST_REQUIRE_EQUAL (notes.size(), 0);
 }
 
+
+/* DCP with valid Interop subtitles */
+BOOST_AUTO_TEST_CASE (verify_test18)
+{
+	boost::filesystem::path const dir("build/test/verify_test18");
+	boost::filesystem::remove_all (dir);
+	boost::filesystem::create_directories (dir);
+	boost::filesystem::copy_file ("test/data/subs1.xml", dir / "subs.xml");
+	shared_ptr<dcp::InteropSubtitleAsset> asset(new dcp::InteropSubtitleAsset(dir / "subs.xml"));
+	shared_ptr<dcp::ReelAsset> reel_asset(new dcp::ReelSubtitleAsset(asset, dcp::Fraction(24, 1), 16 * 24, 0));
+	shared_ptr<dcp::Reel> reel(new dcp::Reel());
+	reel->add (reel_asset);
+	shared_ptr<dcp::CPL> cpl(new dcp::CPL("hello", dcp::FEATURE));
+	cpl->add (reel);
+	shared_ptr<dcp::DCP> dcp(new dcp::DCP(dir));
+	dcp->add (cpl);
+	dcp->write_xml (dcp::INTEROP);
+
+	vector<boost::filesystem::path> dirs;
+	dirs.push_back (dir);
+	list<dcp::VerificationNote> notes = dcp::verify (dirs, &stage, &progress, "xsd");
+	BOOST_REQUIRE_EQUAL (notes.size(), 0);
+}
+
+
+/* DCP with broken Interop subtitles */
+BOOST_AUTO_TEST_CASE (verify_test19)
+{
+	boost::filesystem::path const dir("build/test/verify_test19");
+	boost::filesystem::remove_all (dir);
+	boost::filesystem::create_directories (dir);
+	boost::filesystem::copy_file ("test/data/subs1.xml", dir / "subs.xml");
+	shared_ptr<dcp::InteropSubtitleAsset> asset(new dcp::InteropSubtitleAsset(dir / "subs.xml"));
+	shared_ptr<dcp::ReelAsset> reel_asset(new dcp::ReelSubtitleAsset(asset, dcp::Fraction(24, 1), 16 * 24, 0));
+	shared_ptr<dcp::Reel> reel(new dcp::Reel());
+	reel->add (reel_asset);
+	shared_ptr<dcp::CPL> cpl(new dcp::CPL("hello", dcp::FEATURE));
+	cpl->add (reel);
+	shared_ptr<dcp::DCP> dcp(new dcp::DCP(dir));
+	dcp->add (cpl);
+	dcp->write_xml (dcp::INTEROP);
+
+	{
+		Editor e (dir / "subs.xml");
+		e.replace ("</ReelNumber>", "</ReelNumber><Foo></Foo>");
+	}
+
+	vector<boost::filesystem::path> dirs;
+	dirs.push_back (dir);
+	list<dcp::VerificationNote> notes = dcp::verify (dirs, &stage, &progress, "xsd");
+	dump_notes(notes);
+	BOOST_REQUIRE_EQUAL (notes.size(), 2);
+	BOOST_CHECK_EQUAL (notes.front().code(), dcp::VerificationNote::XML_VALIDATION_ERROR);
+	BOOST_CHECK_EQUAL (notes.back().code(), dcp::VerificationNote::XML_VALIDATION_ERROR);
+}
+
+
+/* DCP with valid SMPTE subtitles */
+BOOST_AUTO_TEST_CASE (verify_test20)
+{
+	boost::filesystem::path const dir("build/test/verify_test20");
+	boost::filesystem::remove_all (dir);
+	boost::filesystem::create_directories (dir);
+	boost::filesystem::copy_file ("test/data/subs.mxf", dir / "subs.mxf");
+	shared_ptr<dcp::SMPTESubtitleAsset> asset(new dcp::SMPTESubtitleAsset(dir / "subs.mxf"));
+	shared_ptr<dcp::ReelAsset> reel_asset(new dcp::ReelSubtitleAsset(asset, dcp::Fraction(24, 1), 16 * 24, 0));
+	shared_ptr<dcp::Reel> reel(new dcp::Reel());
+	reel->add (reel_asset);
+	shared_ptr<dcp::CPL> cpl(new dcp::CPL("hello", dcp::FEATURE));
+	cpl->add (reel);
+	shared_ptr<dcp::DCP> dcp(new dcp::DCP(dir));
+	dcp->add (cpl);
+	dcp->write_xml (dcp::SMPTE);
+
+	vector<boost::filesystem::path> dirs;
+	dirs.push_back (dir);
+	list<dcp::VerificationNote> notes = dcp::verify (dirs, &stage, &progress, "xsd");
+	dump_notes (notes);
+	BOOST_REQUIRE_EQUAL (notes.size(), 0);
+}
+
+
+/* DCP with broken SMPTE subtitles */
+BOOST_AUTO_TEST_CASE (verify_test21)
+{
+	boost::filesystem::path const dir("build/test/verify_test21");
+	boost::filesystem::remove_all (dir);
+	boost::filesystem::create_directories (dir);
+	boost::filesystem::copy_file ("test/data/broken_smpte.mxf", dir / "subs.mxf");
+	shared_ptr<dcp::SMPTESubtitleAsset> asset(new dcp::SMPTESubtitleAsset(dir / "subs.mxf"));
+	shared_ptr<dcp::ReelAsset> reel_asset(new dcp::ReelSubtitleAsset(asset, dcp::Fraction(24, 1), 16 * 24, 0));
+	shared_ptr<dcp::Reel> reel(new dcp::Reel());
+	reel->add (reel_asset);
+	shared_ptr<dcp::CPL> cpl(new dcp::CPL("hello", dcp::FEATURE));
+	cpl->add (reel);
+	shared_ptr<dcp::DCP> dcp(new dcp::DCP(dir));
+	dcp->add (cpl);
+	dcp->write_xml (dcp::SMPTE);
+
+	vector<boost::filesystem::path> dirs;
+	dirs.push_back (dir);
+	list<dcp::VerificationNote> notes = dcp::verify (dirs, &stage, &progress, "xsd");
+	dump_notes (notes);
+	BOOST_REQUIRE_EQUAL (notes.size(), 2);
+	BOOST_CHECK_EQUAL (notes.front().code(), dcp::VerificationNote::XML_VALIDATION_ERROR);
+	BOOST_CHECK_EQUAL (notes.back().code(), dcp::VerificationNote::XML_VALIDATION_ERROR);
+}
+
diff --git a/xsd/DCDMSubtitle-2010.xsd b/xsd/DCDMSubtitle-2010.xsd
new file mode 100644
index 00000000..1b4abfa5
--- /dev/null
+++ b/xsd/DCDMSubtitle-2010.xsd
@@ -0,0 +1,417 @@
+<?xml version="1.0" encoding="UTF-8"?>

+

+<!--

+Copyright (c), Society of Motion Pictures and Television Engineers. All rights reserved.

+Redistribution and use in source and binary forms, with or without modification, are permitted

+provided that the following conditions are met: 1. Redistributions of source code must retain 

+the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions

+in binary form must reproduce the above copyright notice, this list of conditions and the following

+disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the

+name of the copyright holder nor the names of its contributors may be used to endorse or promote 

+products derived from this software without specific prior written permission. 

+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 

+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 

+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 

+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 

+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 

+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 

+TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 

+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+-->

+

+<!--

+This document is an element of SMPTE ST 2067-100:2014, which is available at http://standards.smpte.org.

+To ensure interoperability, users are encouraged to: (a) retain this notice; (b) retrieve the recent versions 

+of this document and its companion defining engineering document. In particular, this document alone might not 

+be sufficient to ensure interoperability; (c) highlight and explain any modification they make to this document;

+and (d) report issues to the Director of Standards at https://www.smpte.org/about/staff.

+-->

+

+<xs:schema

+    targetNamespace="http://www.smpte-ra.org/schemas/428-7/2010/DCST"

+    xmlns:dcst="http://www.smpte-ra.org/schemas/428-7/2010/DCST"

+    xmlns:xs="http://www.w3.org/2001/XMLSchema"

+    elementFormDefault="qualified" attributeFormDefault="unqualified">

+

+<!-- This version of the schema was produced for publication with ST 428-7:2014. It has been corrected from its original 2010 published version. Refer to ST 428-7:2014 Section 8 for additional details. -->

+

+

+  <!-- SubtitleReel -->

+  <xs:element name="SubtitleReel" type="dcst:SubtitleReelType"/>

+  <xs:complexType name="SubtitleReelType">

+    <xs:sequence>

+      <xs:element name="Id" type="dcst:UUID"/>

+      <xs:element name="ContentTitleText" type="dcst:UserText"/>

+      <xs:element name="AnnotationText" type="dcst:UserText" minOccurs="0"/>

+      <xs:element name="IssueDate" type="xs:dateTime"/>

+      <xs:element name="ReelNumber" type="xs:positiveInteger" minOccurs="0"/>

+      <xs:element name="Language" type="xs:language" minOccurs="0" default="en"/>

+      <xs:element name="EditRate" type="dcst:RationalType"/>

+      <xs:element name="TimeCodeRate" type="xs:positiveInteger"/>

+      <xs:element name="StartTime" type="dcst:TimeCodeType" minOccurs="0"/>

+      <xs:element name="DisplayType" type="dcst:scopedTokenType" minOccurs="0"/>

+      <xs:element name="LoadFont" minOccurs="0" maxOccurs="unbounded">

+        <xs:complexType>

+          <xs:simpleContent>

+            <xs:extension base="xs:anyURI">

+              <xs:attribute name="ID" type="xs:string" use="optional"/>

+            </xs:extension>

+          </xs:simpleContent>

+        </xs:complexType>

+      </xs:element>

+      <xs:element name="SubtitleList">

+        <xs:complexType>

+          <xs:choice maxOccurs="unbounded">

+            <xs:element name="Subtitle" type="dcst:SubtitleType"/>

+            <xs:element name="Font">

+              <xs:complexType mixed="true">

+                <xs:complexContent mixed="true">

+                  <xs:extension base="dcst:FontType">

+                    <xs:sequence>

+                      <xs:element name="Subtitle" type="dcst:SubtitleType" maxOccurs="unbounded"/>

+                    </xs:sequence>

+                  </xs:extension>

+                </xs:complexContent>

+              </xs:complexType>

+            </xs:element>

+          </xs:choice>

+        </xs:complexType>

+      </xs:element>

+    </xs:sequence>

+  </xs:complexType>

+

+  <!-- Subtitle -->

+  <xs:complexType name="SubtitleType">

+    <xs:choice maxOccurs="unbounded">

+      <xs:element name="Text" type="dcst:TextType"/>

+      <xs:element name="Image" type="dcst:ImageType"/>

+      <xs:element name="Font">

+        <xs:complexType mixed="true">

+          <xs:complexContent mixed="true">

+            <xs:extension base="dcst:FontType">

+              <xs:sequence>

+                <xs:element name="Text" type="dcst:TextType" maxOccurs="unbounded"/>

+              </xs:sequence>

+            </xs:extension>

+          </xs:complexContent>

+        </xs:complexType>

+      </xs:element>

+    </xs:choice>

+    <xs:attribute name="SpotNumber" type="xs:string" use="optional"/>

+    <xs:attribute name="TimeIn" type="dcst:TimeCodeType" use="required"/>

+    <xs:attribute name="TimeOut" type="dcst:TimeCodeType" use="required"/>

+    <xs:attribute name="FadeUpTime" type="dcst:TimeCodeType" use="optional"/>

+    <xs:attribute name="FadeDownTime" type="dcst:TimeCodeType" use="optional"/>

+  </xs:complexType>

+

+  <!-- Image -->

+  <xs:complexType name="ImageType" mixed="false">

+    <xs:simpleContent>

+      <xs:extension base="xs:anyURI">

+        <xs:attribute name="Halign" use="optional" default="center">

+          <xs:simpleType>

+            <xs:restriction base="xs:string">

+              <xs:enumeration value="center"/>

+              <xs:enumeration value="left"/>

+              <xs:enumeration value="right"/>

+            </xs:restriction>

+          </xs:simpleType>

+        </xs:attribute>

+        <xs:attribute name="Hposition" use="optional" default="0">

+          <xs:simpleType>

+            <xs:restriction base="xs:decimal">

+              <xs:minInclusive value="-100"/>

+              <xs:maxInclusive value="100"/>

+            </xs:restriction>

+          </xs:simpleType>

+        </xs:attribute>

+        <xs:attribute name="Valign" use="optional" default="center">

+          <xs:simpleType>

+            <xs:restriction base="xs:string">

+              <xs:enumeration value="center"/>

+              <xs:enumeration value="bottom"/>

+              <xs:enumeration value="top"/>

+            </xs:restriction>

+          </xs:simpleType>

+        </xs:attribute>

+        <xs:attribute name="Vposition" use="optional" default="0">

+          <xs:simpleType>

+            <xs:restriction base="xs:decimal">

+              <xs:minInclusive value="-100"/>

+              <xs:maxInclusive value="100"/>

+            </xs:restriction>

+          </xs:simpleType>

+        </xs:attribute>

+      </xs:extension>

+    </xs:simpleContent>

+  </xs:complexType>

+

+  <!-- Font -->

+  <xs:complexType name="FontType" mixed="true">

+    <xs:attribute name="Script" use="optional" default="normal">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="normal"/>

+          <xs:enumeration value="super"/>

+          <xs:enumeration value="sub"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Effect" use="optional" default="shadow">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="none"/>

+          <xs:enumeration value="border"/>

+          <xs:enumeration value="shadow"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Italic" use="optional" default="no">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="yes"/>

+          <xs:enumeration value="no"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Underline" use="optional" default="no">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="yes"/>

+          <xs:enumeration value="no"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Weight" use="optional" default="normal">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="bold"/>

+          <xs:enumeration value="normal"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="ID" type="xs:string" use="optional"/>

+    <xs:attribute name="Color" use="optional" default="FFFFFFFF">

+      <xs:simpleType>

+        <xs:restriction base="xs:hexBinary">

+          <xs:length value="4"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="EffectColor" use="optional" default="FF000000">

+      <xs:simpleType>

+        <xs:restriction base="xs:hexBinary">

+          <xs:length value="4"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Size" use="optional" default="42">

+      <xs:simpleType>

+        <xs:restriction base="xs:positiveInteger"/>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="AspectAdjust" use="optional" default="1.0">

+      <xs:simpleType>

+        <xs:restriction base="xs:decimal">

+          <xs:minInclusive value="0.25"/>

+          <xs:maxInclusive value="4.0"/>

+        </xs:restriction> 

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Spacing" use="optional" default="0.0">

+      <xs:simpleType>

+        <xs:restriction base="xs:decimal">

+          <xs:minInclusive value="-1.0"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+  </xs:complexType>

+

+  <!-- Text -->

+  <xs:complexType name="TextType" mixed="true">

+    <xs:choice minOccurs="0" maxOccurs="unbounded">

+      <xs:element name="Font" type="dcst:FontType"/>

+      <xs:element name="Ruby" type="dcst:RubyType"/>

+      <xs:element name="Space" type="dcst:SpaceType"/>

+      <xs:element name="HGroup" type="xs:string"/>

+      <xs:element name="Rotate" type="dcst:RotateType"/>

+    </xs:choice>

+    <xs:attribute name="Halign" use="optional" default="center">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="center"/>

+          <xs:enumeration value="left"/>

+          <xs:enumeration value="right"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Hposition" use="optional" default="0">

+      <xs:simpleType>

+        <xs:restriction base="xs:decimal">

+          <xs:minInclusive value="-100"/>

+          <xs:maxInclusive value="100"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Valign" use="optional" default="center">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="center"/>

+          <xs:enumeration value="bottom"/>

+          <xs:enumeration value="top"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Vposition" use="optional" default="0">

+      <xs:simpleType>

+        <xs:restriction base="xs:decimal">

+          <xs:minInclusive value="-100"/>

+          <xs:maxInclusive value="100"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+    <xs:attribute name="Direction" use="optional" default="ltr">

+      <xs:simpleType>

+        <xs:restriction base="xs:string">

+          <xs:enumeration value="ltr"/>

+          <xs:enumeration value="rtl"/>

+          <xs:enumeration value="ttb"/>

+          <xs:enumeration value="btt"/>

+        </xs:restriction>

+      </xs:simpleType>

+    </xs:attribute>

+  </xs:complexType>

+

+  <!-- Rational Type -->

+  <xs:simpleType name="RationalType">

+    <xs:restriction>

+      <xs:simpleType>

+        <xs:list itemType="xs:long"/>

+      </xs:simpleType>

+      <xs:length value="2"/>

+    </xs:restriction>

+  </xs:simpleType>

+

+  <!-- TimeCode Type -->

+  <xs:simpleType name="TimeCodeType">

+    <xs:restriction base="xs:string">

+      <xs:pattern value="[0-2][0-9]:[0-5][0-9]:[0-5][0-9]:[0-9]+"/>

+    </xs:restriction>

+  </xs:simpleType>

+

+  <!-- Ruby Type -->

+  <xs:complexType name="RubyType">

+    <xs:sequence>

+      <xs:element name="Rb" type="xs:string"/>

+      <xs:element name="Rt">

+        <xs:complexType>

+          <xs:simpleContent>

+            <xs:extension base="xs:string">

+              <xs:attribute name="Size" use="optional" default="0.5">

+                <xs:simpleType>

+                   <xs:restriction base="xs:decimal">

+                     <xs:minExclusive value="0"/>

+                   </xs:restriction>

+                </xs:simpleType>

+              </xs:attribute>

+              <xs:attribute name="Position" use="optional" default="before">

+                <xs:simpleType>

+                  <xs:restriction base="xs:string">

+                    <xs:enumeration value="before"/>

+                    <xs:enumeration value="after"/>

+                  </xs:restriction>

+                </xs:simpleType>

+              </xs:attribute>

+              <xs:attribute name="Offset" use="optional" default="0.0">

+                <xs:simpleType>

+                  <xs:restriction base="xs:decimal">

+                    <xs:minInclusive value="-1.0"/>

+                  </xs:restriction>

+                </xs:simpleType>

+              </xs:attribute>

+              <xs:attribute name="Spacing" use="optional" default="0.0">

+                <xs:simpleType>

+                  <xs:restriction base="xs:decimal">

+                    <xs:minInclusive value="-1.0"/>

+                  </xs:restriction>

+                </xs:simpleType>

+              </xs:attribute>

+              <xs:attribute name="AspectAdjust" use="optional" default="1.0">

+                <xs:simpleType>

+                  <xs:restriction base="xs:decimal">

+                    <xs:minInclusive value="0.25"/>

+                    <xs:maxInclusive value="4.0"/>

+                  </xs:restriction>

+                </xs:simpleType>

+              </xs:attribute>

+            </xs:extension>

+          </xs:simpleContent>

+        </xs:complexType>

+      </xs:element>

+    </xs:sequence>

+  </xs:complexType>

+

+  <!-- Rotate Type -->

+  <xs:complexType name="RotateType">

+    <xs:simpleContent>

+      <xs:extension base="xs:string">

+        <xs:attribute name="Direction" use="optional" default="none">

+          <xs:simpleType>

+            <xs:restriction base="xs:string">

+              <xs:enumeration value="none"/>

+              <xs:enumeration value="left"/>

+              <xs:enumeration value="right"/>

+            </xs:restriction>

+          </xs:simpleType>

+        </xs:attribute>

+      </xs:extension>

+    </xs:simpleContent>

+  </xs:complexType>

+

+  <!-- Space Type -->

+  <xs:complexType name="SpaceType">

+    <xs:simpleContent>

+      <xs:extension base="dcst:EmptyElement">

+        <xs:attribute name="Size" use="optional" default="0.5">

+          <xs:simpleType>

+            <xs:restriction base="xs:decimal">

+              <xs:minInclusive value="-1.0"/>

+            </xs:restriction>

+          </xs:simpleType>

+        </xs:attribute>

+      </xs:extension>

+    </xs:simpleContent>

+  </xs:complexType>

+

+  <!-- UUID Type -->

+  <xs:simpleType name="UUID">

+    <xs:restriction base="xs:anyURI">

+      <xs:pattern value="urn:uuid:[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}"/>

+    </xs:restriction>

+  </xs:simpleType>

+

+  <!-- UserText Type -->

+  <xs:complexType name="UserText">

+    <xs:simpleContent>

+      <xs:extension base="xs:string">

+        <xs:attribute name="language" type="xs:language" use="optional" default="en"/>

+      </xs:extension>

+    </xs:simpleContent>

+  </xs:complexType>

+

+  <!-- Scoped Token Type -->

+  <xs:complexType name="scopedTokenType">

+    <xs:simpleContent>

+      <xs:extension base="xs:token">

+      <xs:attribute name="scope" type="xs:anyURI" use="optional"/>

+      </xs:extension>

+    </xs:simpleContent>

+  </xs:complexType>

+

+  <!-- EmptyElement Type -->

+  <xs:simpleType name="EmptyElement">

+    <xs:restriction base="xs:string">

+      <xs:length value="0"/>

+    </xs:restriction>

+  </xs:simpleType>

+</xs:schema>

diff --git a/xsd/DCSubtitle.v1.mattsson.xsd b/xsd/DCSubtitle.v1.mattsson.xsd
new file mode 100644
index 00000000..acdfcd84
--- /dev/null
+++ b/xsd/DCSubtitle.v1.mattsson.xsd
@@ -0,0 +1,254 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
+  <xs:element name="DCSubtitle">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element name="SubtitleID" type="UUIDType"/>
+        <xs:element name="MovieTitle" type="xs:string"/>
+        <xs:element name="ReelNumber" type="xs:string"/>
+        <xs:element name="Language" type="xs:string"/>
+        <xs:element ref="LoadFont" minOccurs="0" maxOccurs="unbounded"/>
+        <xs:element ref="Font" minOccurs="0" maxOccurs="unbounded"/>
+        <xs:element ref="Subtitle" minOccurs="0" maxOccurs="unbounded"/>
+      </xs:sequence>
+      <xs:attribute name="Version" use="required">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:enumeration value="1.0"/>
+            <xs:enumeration value="1.1"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+    </xs:complexType>
+  </xs:element>
+   <xs:element name="LoadFont">
+     <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="spaceType">
+          <xs:attribute name="Id" use="required" type="xs:string"/>
+          <xs:attribute name="URI" use="required" type="xs:anyURI"/>
+        </xs:extension>
+      </xs:simpleContent>
+     </xs:complexType>
+   </xs:element>
+  <xs:element name="Font">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="Font"/>
+        <xs:element ref="Subtitle"/>
+        <xs:element ref="Text"/>
+        <xs:element ref="Image"/>
+      </xs:choice>
+      <xs:attribute name="Id" type="xs:string"/>
+      <xs:attribute name="Color" type="fontColorType"/>
+      <xs:attribute name="Effect">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:enumeration value="none"/>
+            <xs:enumeration value="border"/>
+            <xs:enumeration value="shadow"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+      <xs:attribute name="EffectColor" type="fontColorType"/>
+      <xs:attribute name="Italic" type="yesNoType"/>
+      <xs:attribute name="Script">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:enumeration value="normal"/>
+            <xs:enumeration value="super"/>
+            <xs:enumeration value="sub"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+      <xs:attribute name="Size" type="xs:positiveInteger"/>
+      <xs:attribute name="AspectAdjust">
+        <xs:simpleType>
+          <xs:restriction base="xs:decimal">
+            <xs:minInclusive value="0.25"/>
+            <xs:maxInclusive value="4.0"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+      <xs:attribute name="Underlined" type="yesNoType"/>
+      <xs:attribute name="Weight">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:enumeration value="bold"/>
+            <xs:enumeration value="normal"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+      <xs:attribute name="Spacing" type="spacingType"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="Subtitle">
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="Font"/>
+        <xs:element ref="Text"/>
+        <xs:element ref="Image"/>
+      </xs:choice>
+      <xs:attribute name="SpotNumber" use="required" type="xs:string"/>
+      <xs:attribute name="TimeIn" use="required" type="timeType"/>
+      <xs:attribute name="TimeOut" use="required" type="timeType"/>
+      <xs:attribute name="FadeUpTime" type="fadeTimeType"/>
+      <xs:attribute name="FadeDownTime" type="fadeTimeType"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="Text">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="Font"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="Ruby"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="Space"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="HGroup"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="Rotate"/>
+      </xs:choice>
+      <xs:attribute name="Direction">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:enumeration value="horizontal"/>
+            <xs:enumeration value="vertical"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+      <xs:attribute name="HAlign" type="hAlignType"/>
+      <xs:attribute name="HPosition" type="positionType"/>
+      <xs:attribute name="VAlign" type="vAlignType" />
+      <xs:attribute name="VPosition" type="positionType"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="Ruby">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="Rb"/>
+        <xs:element ref="Rt"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="Rb" type="xs:string"/>
+  <xs:element name="Rt">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:string">
+          <xs:attribute name="Size" type="sizeType"/>
+          <xs:attribute name="Position">
+            <xs:simpleType>
+              <xs:restriction base="xs:string">
+                <xs:enumeration value="before"/>
+                <xs:enumeration value="after"/>
+              </xs:restriction>
+            </xs:simpleType>
+          </xs:attribute>
+          <xs:attribute name="Offset" type="spacingType"/>
+          <xs:attribute name="Spacing" type="spacingType"/>
+          <xs:attribute name="AspectAdjust">
+            <xs:simpleType>
+              <xs:restriction base="xs:decimal">
+                <xs:minInclusive value="0.25"/>
+                <xs:maxInclusive value="4.0"/>
+              </xs:restriction>
+            </xs:simpleType>
+          </xs:attribute>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="Space">
+    <xs:complexType>
+      <xs:attribute name="Size" type="sizeType"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="HGroup" type="xs:string"/>
+  <xs:element name="Rotate">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:string">
+          <xs:attribute name="Direction">
+            <xs:simpleType>
+              <xs:restriction base="xs:string">
+                <xs:enumeration value="none"/>
+                <xs:enumeration value="right"/>
+                <xs:enumeration value="left"/>
+              </xs:restriction>
+            </xs:simpleType>
+          </xs:attribute>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="Image">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:anyURI">
+          <xs:attribute name="HAlign" type="hAlignType"/>
+          <xs:attribute name="HPosition" type="positionType"/>
+          <xs:attribute name="VAlign" type="vAlignType"/>
+          <xs:attribute name="VPosition" type="positionType"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:simpleType name="spaceType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="\s*"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="UUIDType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="\s*[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\s*"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="yesNoType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="yes"/>
+      <xs:enumeration value="no"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="hAlignType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="left"/>
+      <xs:enumeration value="right"/>
+      <xs:enumeration value="center"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="vAlignType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="top"/>
+      <xs:enumeration value="bottom"/>
+      <xs:enumeration value="center"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="spacingType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="-?(\d+|\d+\.\d+)em"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="sizeType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="(\d+|\d+\.\d+)em"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="timeType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="\d\d:\d\d:\d\d(:(([0-1][0-9][0-9])|([2][0-4][0-9]))|(\.\d{1,3}))"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="fadeTimeType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="(\d\d:\d\d:\d\d(:|\.)(\d){1,3})|(\d){1,3}"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="fontColorType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="[0-9A-Fa-f]{8}"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="positionType">
+    <xs:restriction base="xs:decimal">
+      <xs:minInclusive value="-100"/>
+      <xs:maxInclusive value="100"/>
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>