Check return value of fread().

[libdcp.git] / src / reel_subtitle_asset.cc

diff --git a/src/reel_subtitle_asset.cc b/src/reel_subtitle_asset.cc
index acb96a3bb1e498e87ae1305618557172cc920833..ddb1b9726fa5856e6e8452b3205e9f9a3e8166a6 100644 (file)
--- a/src/reel_subtitle_asset.cc
+++ b/src/reel_subtitle_asset.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
 
     This file is part of libdcp.
 
@@ -16,6 +16,19 @@
     You should have received a copy of the GNU General Public License
     along with libdcp.  If not, see <http://www.gnu.org/licenses/>.
 
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
+
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
 */
 
 /** @file  src/reel_subtitle_asset.cc
@@ -24,26 +37,52 @@
 
 #include "subtitle_asset.h"
 #include "reel_subtitle_asset.h"
+#include "smpte_subtitle_asset.h"
+#include <libxml++/libxml++.h>
 
 using std::string;
 using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::optional;
 using namespace dcp;
 
 ReelSubtitleAsset::ReelSubtitleAsset (boost::shared_ptr<SubtitleAsset> asset, Fraction edit_rate, int64_t intrinsic_duration, int64_t entry_point)
        : ReelAsset (asset, edit_rate, intrinsic_duration, entry_point)
+       , ReelMXF (dynamic_pointer_cast<SMPTESubtitleAsset>(asset) ? dynamic_pointer_cast<SMPTESubtitleAsset>(asset)->key_id() : optional<string>())
 {
 
 }
 
 ReelSubtitleAsset::ReelSubtitleAsset (boost::shared_ptr<const cxml::Node> node)
        : ReelAsset (node)
+       , ReelMXF (node)
 {
        node->ignore_child ("Language");
        node->done ();
 }
 
 string
-ReelSubtitleAsset::cpl_node_name () const
+ReelSubtitleAsset::cpl_node_name (Standard) const
 {
        return "MainSubtitle";
 }
+
+string
+ReelSubtitleAsset::key_type () const
+{
+       return "MDSK";
+}
+
+void
+ReelSubtitleAsset::write_to_cpl (xmlpp::Node* node, Standard standard) const
+{
+       ReelAsset::write_to_cpl (node, standard);
+
+        if (key_id ()) {
+               /* Find <MainSubtitle> */
+               xmlpp::Node* ms = find_child (node, cpl_node_name (standard));
+               /* Find <Hash> */
+               xmlpp::Node* hash = find_child (ms, "Hash");
+               ms->add_child_before (hash, "KeyId")->add_child_text ("urn:uuid:" + key_id().get ());
+       }
+}