Optionally allow subtitle issue dates to differ.

[libdcp.git] / src / smpte_subtitle_asset.cc

diff --git a/src/smpte_subtitle_asset.cc b/src/smpte_subtitle_asset.cc
index 026e9f631d0ee2dfa1f0547b9b377a8a090370ad..362211cfe62e478d3560c02021e4bfa340da54e7 100644 (file)
--- a/src/smpte_subtitle_asset.cc
+++ b/src/smpte_subtitle_asset.cc
@@ -45,6 +45,7 @@ using boost::shared_ptr;
 using boost::split;
 using boost::is_any_of;
 using boost::shared_array;
+using boost::dynamic_pointer_cast;
 using namespace dcp;
 
 SMPTESubtitleAsset::SMPTESubtitleAsset ()
@@ -264,8 +265,79 @@ SMPTESubtitleAsset::write (boost::filesystem::path p) const
 bool
 SMPTESubtitleAsset::equals (shared_ptr<const Asset> other_asset, EqualityOptions options, NoteHandler note) const
 {
-       /* XXX */
-       return false;
+       if (!SubtitleAsset::equals (other_asset, options, note)) {
+               return false;
+       }
+
+       shared_ptr<const SMPTESubtitleAsset> other = dynamic_pointer_cast<const SMPTESubtitleAsset> (other_asset);
+       if (!other) {
+               note (DCP_ERROR, "Subtitles are in different standards");
+               return false;
+       }
+
+       list<shared_ptr<SMPTELoadFontNode> >::const_iterator i = _load_font_nodes.begin ();
+       list<shared_ptr<SMPTELoadFontNode> >::const_iterator j = other->_load_font_nodes.begin ();
+
+       while (i != _load_font_nodes.end ()) {
+               if (j == other->_load_font_nodes.end ()) {
+                       note (DCP_ERROR, "<LoadFont> nodes differ");
+                       return false;
+               }
+
+               if ((*i)->id != (*j)->id) {
+                       note (DCP_ERROR, "<LoadFont> nodes differ");
+                       return false;
+               }
+
+               ++i;
+               ++j;
+       }
+
+       if (_content_title_text != other->_content_title_text) {
+               note (DCP_ERROR, "Subtitle content title texts differ");
+               return false;
+       }
+       
+       if (_language != other->_language) {
+               note (DCP_ERROR, "Subtitle languages differ");
+               return false;
+       }
+
+       if (_annotation_text != other->_annotation_text) {
+               note (DCP_ERROR, "Subtitle annotation texts differ");
+               return false;
+       }
+       
+       if (_issue_date != other->_issue_date) {
+               if (options.issue_dates_can_differ) {
+                       note (DCP_NOTE, "Subtitle issue dates differ");
+               } else {
+                       note (DCP_ERROR, "Subtitle issue dates differ");
+                       return false;
+               }
+       }
+       
+       if (_reel_number != other->_reel_number) {
+               note (DCP_ERROR, "Subtitle reel numbers differ");
+               return false;
+       }
+       
+       if (_edit_rate != other->_edit_rate) {
+               note (DCP_ERROR, "Subtitle edit rates differ");
+               return false;
+       }
+
+       if (_time_code_rate != other->_time_code_rate) {
+               note (DCP_ERROR, "Subtitle time code rates differ");
+               return false;
+       }
+       
+       if (_start_time != other->_start_time) {
+               note (DCP_ERROR, "Subtitle start times differ");
+               return false;
+       }
+
+       return true;
 }
 
 void