Basics of multiple captions per content so that DCPContent can

[dcpomatic.git] / src / lib / caption_content.cc

diff --git a/src/lib/caption_content.cc b/src/lib/caption_content.cc
index af534980a47a42d8d21008fc9602f9edcb8ae810..d44fb55c5502a8faabc61fe122e90d20671c0f5e 100644 (file)
--- a/src/lib/caption_content.cc
+++ b/src/lib/caption_content.cc
@@ -68,11 +68,15 @@ CaptionContent::CaptionContent (Content* parent)
        , _line_spacing (1)
        , _outline_width (2)
        , _type (CAPTION_OPEN)
+       , _original_type (CAPTION_OPEN)
 {
 
 }
 
-shared_ptr<CaptionContent>
+/** @return CaptionContents from node or <Caption> nodes under node (according to version).
+ *  The list could be empty if no CaptionContents are found.
+ */
+list<shared_ptr<CaptionContent> >
 CaptionContent::from_xml (Content* parent, cxml::ConstNodePtr node, int version)
 {
        if (version < 34) {
@@ -80,7 +84,7 @@ CaptionContent::from_xml (Content* parent, cxml::ConstNodePtr node, int version)
                   subtitle streams, so check for that.
                */
                if (node->string_child("Type") == "FFmpeg" && node->node_children("SubtitleStream").empty()) {
-                       return shared_ptr<CaptionContent> ();
+                       return list<shared_ptr<CaptionContent> >();
                }
 
                /* Otherwise we can drop through to the newer logic */
@@ -88,16 +92,22 @@ CaptionContent::from_xml (Content* parent, cxml::ConstNodePtr node, int version)
 
        if (version < 37) {
                if (!node->optional_number_child<double>("SubtitleXOffset") && !node->optional_number_child<double>("SubtitleOffset")) {
-                       return shared_ptr<CaptionContent> ();
+                       return list<shared_ptr<CaptionContent> >();
                }
-               return shared_ptr<CaptionContent> (new CaptionContent (parent, node, version));
+               list<shared_ptr<CaptionContent> > c;
+               c.push_back (shared_ptr<CaptionContent> (new CaptionContent (parent, node, version)));
+               return c;
        }
 
        if (!node->node_child("Caption")) {
-               return shared_ptr<CaptionContent> ();
+               return list<shared_ptr<CaptionContent> >();
        }
 
-       return shared_ptr<CaptionContent> (new CaptionContent (parent, node->node_child("Caption"), version));
+       list<shared_ptr<CaptionContent> > c;
+       BOOST_FOREACH (cxml::ConstNodePtr i, node->node_children("Caption")) {
+               c.push_back (shared_ptr<CaptionContent> (new CaptionContent (parent, i, version)));
+       }
+       return c;
 }
 
 CaptionContent::CaptionContent (Content* parent, cxml::ConstNodePtr node, int version)
@@ -215,6 +225,7 @@ CaptionContent::CaptionContent (Content* parent, cxml::ConstNodePtr node, int ve
        connect_to_fonts ();
 
        _type = string_to_caption_type (node->optional_string_child("Type").get_value_or("open"));
+       _original_type = string_to_caption_type (node->optional_string_child("Type").get_value_or("open"));
 }
 
 
@@ -270,6 +281,7 @@ CaptionContent::as_xml (xmlpp::Node* root) const
        }
 
        caption->add_child("Type")->add_child_text (caption_type_to_string(_type));
+       caption->add_child("OriginalType")->add_child_text (caption_type_to_string(_original_type));
 }
 
 string