+/*
+ Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "raw_convert.h"
#include "cpl.h"
+#include "util.h"
+#include "mono_picture_mxf.h"
+#include "stereo_picture_mxf.h"
+#include "sound_mxf.h"
+#include "subtitle_content.h"
+#include "reel.h"
+#include "metadata.h"
+#include "signer.h"
+#include "exceptions.h"
+#include "xml.h"
+#include "compose.hpp"
+#include "reel_picture_asset.h"
+#include "reel_sound_asset.h"
+#include "reel_subtitle_asset.h"
+#include "local_time.h"
+#include <libxml/parser.h>
+
+using std::string;
+using std::stringstream;
+using std::ostream;
+using std::list;
+using std::pair;
+using std::make_pair;
+using boost::shared_ptr;
+using boost::optional;
+using namespace dcp;
+
+CPL::CPL (string annotation_text, ContentKind content_kind)
+ : _annotation_text (annotation_text)
+ /* default _content_title_text to _annotation_text */
+ , _content_title_text (annotation_text)
+ , _content_kind (content_kind)
+ , _content_version_id ("urn:uuid:" + make_uuid ())
+{
+ /* default _content_version_id to and _content_version_label to
+ a random ID and the current time.
+ */
+ _content_version_id = "urn:uuid:" + make_uuid() + LocalTime().as_string ();
+ _content_version_label_text = _content_version_id;
+}
+
+/** Construct a CPL object from a XML file */
+CPL::CPL (boost::filesystem::path file)
+ : Asset (file)
+ , _content_kind (FEATURE)
+{
+ cxml::Document f ("CompositionPlaylist");
+ f.read_file (file);
+
+ _id = f.string_child ("Id");
+ if (_id.length() > 9) {
+ _id = _id.substr (9);
+ }
+ _annotation_text = f.optional_string_child ("AnnotationText").get_value_or ("");
+ _metadata.issuer = f.optional_string_child ("Issuer").get_value_or ("");
+ _metadata.creator = f.optional_string_child ("Creator").get_value_or ("");
+ _metadata.issue_date = f.string_child ("IssueDate");
+ _content_title_text = f.string_child ("ContentTitleText");
+ _content_kind = content_kind_from_string (f.string_child ("ContentKind"));
+ shared_ptr<cxml::Node> content_version = f.optional_node_child ("ContentVersion");
+ if (content_version) {
+ _content_version_id = content_version->optional_string_child ("Id").get_value_or ("");
+ _content_version_label_text = content_version->string_child ("LabelText");
+ content_version->done ();
+ }
+ f.ignore_child ("RatingList");
+ _reels = type_grand_children<Reel> (f, "ReelList", "Reel");
+
+ f.ignore_child ("Issuer");
+ f.ignore_child ("Signer");
+ f.ignore_child ("Signature");
+
+ f.done ();
+}
+
+/** Add a reel to this CPL.
+ * @param reel Reel to add.
+ */
+void
+CPL::add (boost::shared_ptr<Reel> reel)
+{
+ _reels.push_back (reel);
+}
+
+/** Write an CompositonPlaylist XML file.
+ * @param file Filename to write.
+ * @param standard INTEROP or SMPTE.
+ * @param signer Signer to sign the CPL, or 0 to add no signature.
+ */
+void
+CPL::write_xml (boost::filesystem::path file, Standard standard, shared_ptr<const Signer> signer) const
+{
+ xmlpp::Document doc;
+ xmlpp::Element* root;
+ if (standard == INTEROP) {
+ root = doc.create_root_node ("CompositionPlaylist", "http://www.digicine.com/PROTO-ASDCP-CPL-20040511#");
+ } else {
+ root = doc.create_root_node ("CompositionPlaylist", "http://www.smpte-ra.org/schemas/429-7/2006/CPL");
+ }
+
+ if (signer) {
+ root->set_namespace_declaration ("http://www.w3.org/2000/09/xmldsig#", "dsig");
+ }
+
+ root->add_child("Id")->add_child_text ("urn:uuid:" + _id);
+ root->add_child("AnnotationText")->add_child_text (_annotation_text);
+ root->add_child("IssueDate")->add_child_text (_metadata.issue_date);
+ root->add_child("Issuer")->add_child_text (_metadata.issuer);
+ root->add_child("Creator")->add_child_text (_metadata.creator);
+ root->add_child("ContentTitleText")->add_child_text (_content_title_text);
+ root->add_child("ContentKind")->add_child_text (content_kind_to_string (_content_kind));
+ {
+ xmlpp::Node* cv = root->add_child ("ContentVersion");
+ cv->add_child ("Id")->add_child_text (_content_version_id);
+ cv->add_child ("LabelText")->add_child_text (_content_version_label_text);
+ }
+ root->add_child("RatingList");
+
+ xmlpp::Element* reel_list = root->add_child ("ReelList");
+
+ for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
+ (*i)->write_to_cpl (reel_list, standard);
+ }
+
+ if (signer) {
+ signer->sign (root, standard);
+ }
+
+ /* This must not be the _formatted version otherwise signature digests will be wrong */
+ doc.write_to_file (file.string (), "UTF-8");
-CPL::CPL (string file)
+ set_file (file);
+}
+
+list<shared_ptr<const Content> >
+CPL::content () const
+{
+ list<shared_ptr<const Content> > c;
+
+ for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
+ if ((*i)->main_picture ()) {
+ c.push_back ((*i)->main_picture()->mxf ());
+ }
+ if ((*i)->main_sound ()) {
+ c.push_back ((*i)->main_sound()->mxf ());
+ }
+ if ((*i)->main_subtitle ()) {
+ c.push_back ((*i)->main_subtitle()->subtitle_content ());
+ }
+ }
+
+ return c;
+}
+
+bool
+CPL::equals (CPL const & other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
+{
+ if (_annotation_text != other._annotation_text && !opt.cpl_annotation_texts_can_differ) {
+ stringstream s;
+ s << "annotation texts differ: " << _annotation_text << " vs " << other._annotation_text << "\n";
+ note (ERROR, s.str ());
+ return false;
+ }
+
+ if (_content_kind != other._content_kind) {
+ note (ERROR, "content kinds differ");
+ return false;
+ }
+
+ if (_reels.size() != other._reels.size()) {
+ note (ERROR, String::compose ("reel counts differ (%1 vs %2)", _reels.size(), other._reels.size()));
+ return false;
+ }
+
+ list<shared_ptr<Reel> >::const_iterator a = _reels.begin ();
+ list<shared_ptr<Reel> >::const_iterator b = other._reels.begin ();
+
+ while (a != _reels.end ()) {
+ if (!(*a)->equals (*b, opt, note)) {
+ return false;
+ }
+ ++a;
+ ++b;
+ }
+
+ return true;
+}
+
+/** @return true if we have any encrypted content */
+bool
+CPL::encrypted () const
{
- file_is (file);
+ for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
+ if ((*i)->encrypted ()) {
+ return true;
+ }
+ }
- _id = string_tag ("Id");
- _annotation_text = string_tag ("AnnotationText");
- _issue_date = string_tag ("IssueDate");
- _creator = string_tag ("Creator");
- _content_title_text = string_tag ("ContentTitleText");
- _content_kind = kind_tag ("ContentKind");
- _content_version = sub (new ContentVersion, "ContentVersion");
- ignore ("RatingList");
- _reel_list = sub (new ReelList, "ReelList");
+ return false;
+}
+
+/** Add a KDM to this CPL. If the KDM is for any of this CPLs assets it will be used
+ * to decrypt those assets.
+ * @param kdm KDM.
+ */
+void
+CPL::add (DecryptedKDM const & kdm)
+{
+ for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
+ (*i)->add (kdm);
+ }
+}
+
+/** Set a private key for every MXF referenced by this CPL. This will allow the data
+ * to be decrypted or encrypted.
+ * @param key Key to use.
+ */
+void
+CPL::set_mxf_keys (Key key)
+{
+ for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
+ (*i)->set_mxf_keys (key);
+ }
+}
+
+void
+CPL::resolve_refs (list<shared_ptr<Object> > objects)
+{
+ for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
+ (*i)->resolve_refs (objects);
+ }
+}
+
+string
+CPL::pkl_type (Standard standard) const
+{
+ switch (standard) {
+ case INTEROP:
+ return "text/xml;asdcpKind=CPL";
+ case SMPTE:
+ return "text/xml";
+ default:
+ assert (false);
+ }
}
+
projects / libdcp.git / blobdiff