From 830d8e01713add5856f44a5246eb65781458d0b8 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 13 Aug 2012 00:10:19 +0100
Subject: Tweaks for more real-life DCPs; beginning of subtitle support.

---
 src/asset_map.cc |  2 +-
 src/cpl.cc       | 18 +++++++++++++++++-
 src/cpl.h        | 15 +++++++++++++++
 src/dcp.cc       | 12 +++++++-----
 src/dcp.h        |  1 +
 src/xml.cc       |  7 ++++++-
 6 files changed, 47 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/asset_map.cc b/src/asset_map.cc
index b77c4ac1..3e0a0545 100644
--- a/src/asset_map.cc
+++ b/src/asset_map.cc
@@ -26,7 +26,7 @@ Chunk::Chunk (xmlpp::Node const * node)
 	: XMLNode (node)
 {
 	path = string_node ("Path");
-	volume_index = int64_node ("VolumeIndex");
+	volume_index = optional_int64_node ("VolumeIndex");
 	offset = optional_int64_node ("Offset");
 	length = optional_int64_node ("Length");
 }
diff --git a/src/cpl.cc b/src/cpl.cc
index 9dfe446d..137d359f 100644
--- a/src/cpl.cc
+++ b/src/cpl.cc
@@ -8,7 +8,7 @@ CPL::CPL (string file)
 	: XMLFile (file, "CompositionPlaylist")
 {
 	id = string_node ("Id");
-	annotation_text = string_node ("AnnotationText");
+	annotation_text = optional_string_node ("AnnotationText");
 	issue_date = string_node ("IssueDate");
 	creator = string_node ("Creator");
 	content_title_text = string_node ("ContentTitleText");
@@ -46,6 +46,7 @@ CPLAssetList::CPLAssetList (xmlpp::Node const * node)
 {
 	main_picture = sub_node<MainPicture> ("MainPicture");
 	main_sound = optional_sub_node<MainSound> ("MainSound");
+	main_subtitle = optional_sub_node<MainSubtitle> ("MainSubtitle");
 
 	done ();
 }
@@ -91,3 +92,18 @@ MainSound::MainSound (xmlpp::Node const * node)
 	
 	done ();
 }
+
+MainSubtitle::MainSubtitle (xmlpp::Node const * node)
+	: XMLNode (node)
+{
+	id = string_node ("Id");
+	annotation_text = optional_string_node ("AnnotationText");
+	edit_rate = fraction_node ("EditRate");
+	intrinsic_duration = int64_node ("IntrinsicDuration");
+	entry_point = int64_node ("EntryPoint");
+	duration = int64_node ("Duration");
+
+	ignore_node ("Hash");
+	
+	done ();
+}
diff --git a/src/cpl.h b/src/cpl.h
index a0426b96..5dd2c37b 100644
--- a/src/cpl.h
+++ b/src/cpl.h
@@ -34,6 +34,20 @@ public:
 	int64_t duration;
 };
 
+class MainSubtitle : public XMLNode
+{
+public:
+	MainSubtitle () {}
+	MainSubtitle (xmlpp::Node const * node);
+
+	std::string id;
+	std::string annotation_text;
+	Fraction edit_rate;
+	int64_t intrinsic_duration;
+	int64_t entry_point;
+	int64_t duration;
+};
+
 class CPLAssetList : public XMLNode
 {
 public:
@@ -42,6 +56,7 @@ public:
 
 	boost::shared_ptr<MainPicture> main_picture;
 	boost::shared_ptr<MainSound> main_sound;
+	boost::shared_ptr<MainSubtitle> main_subtitle;
 };
 
 class Reel : public XMLNode
diff --git a/src/dcp.cc b/src/dcp.cc
index 5eadbca6..b478f18d 100644
--- a/src/dcp.cc
+++ b/src/dcp.cc
@@ -288,9 +288,9 @@ DCP::DCP (string directory)
 	_fps = cpl_assets->main_picture->frame_rate.numerator;
 	_length = cpl_assets->main_picture->duration;
 
-	string n = cpl_assets->main_picture->annotation_text;
+	string n = pkl->asset_from_id(cpl_assets->main_picture->id)->original_file_name;
 	if (n.empty ()) {
-		n = pkl->asset_from_id(cpl_assets->main_picture->id)->original_file_name;
+		n = cpl_assets->main_picture->annotation_text;
 	}
 
 	_assets.push_back (shared_ptr<PictureAsset> (
@@ -304,9 +304,9 @@ DCP::DCP (string directory)
 
 	if (cpl_assets->main_sound) {
 
-		n = cpl_assets->main_sound->annotation_text;
+		n = pkl->asset_from_id(cpl_assets->main_sound->id)->original_file_name;
 		if (n.empty ()) {
-			n = pkl->asset_from_id(cpl_assets->main_sound->id)->original_file_name;
+			n = cpl_assets->main_sound->annotation_text;
 		}
 	
 		_assets.push_back (shared_ptr<SoundAsset> (
@@ -333,7 +333,7 @@ DCP::scan (Files& files, string directory) const
 			continue;
 		}
 
-		if (ends_with (t, ".mxf")) {
+		if (ends_with (t, ".mxf") || ends_with (t, ".ttf")) {
 			continue;
 		}
 
@@ -373,6 +373,8 @@ DCP::scan (Files& files, string directory) const
 				throw DCPReadError ("duplicate AssetMaps found");
 			}
 			files.asset_map = t;
+		} else if (root == "DCSubtitle") {
+			files.subtitles.push_back (t);
 		}
 	}
 }
diff --git a/src/dcp.h b/src/dcp.h
index 90369aa5..7f62acd1 100644
--- a/src/dcp.h
+++ b/src/dcp.h
@@ -149,6 +149,7 @@ private:
 		std::string cpl;
 		std::string pkl;
 		std::string asset_map;
+		std::list<std::string> subtitles;
 	};
 
 	void scan (Files& files, std::string directory) const;
diff --git a/src/xml.cc b/src/xml.cc
index 72dfe1bb..206cb5f0 100644
--- a/src/xml.cc
+++ b/src/xml.cc
@@ -62,9 +62,14 @@ XMLNode::string_node (string name)
 	xmlpp::Node* node = xml_node (name);
 	
         xmlpp::Node::NodeList c = node->get_children ();
-	if (c.size() != 1) {
+
+	if (c.size() > 1) {
 		throw XMLError ("unexpected content in XML node");
 	}
+
+	if (c.empty ()) {
+		return "";
+	}
 	
         xmlpp::ContentNode const * v = dynamic_cast<xmlpp::ContentNode const *> (c.front());
 	if (!v) {
-- 
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