2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "reel_picture_asset.h"
27 #include "reel_sound_asset.h"
28 #include "reel_subtitle_asset.h"
29 #include "local_time.h"
30 #include "compose.hpp"
31 #include <libxml/parser.h>
34 using std::stringstream;
40 using boost::shared_ptr;
41 using boost::optional;
42 using boost::dynamic_pointer_cast;
45 CPL::CPL (string annotation_text, ContentKind content_kind)
46 : _annotation_text (annotation_text)
47 /* default _content_title_text to _annotation_text */
48 , _content_title_text (annotation_text)
49 , _content_kind (content_kind)
50 , _content_version_id ("urn:uuid:" + make_uuid ())
52 /* default _content_version_id to and _content_version_label to
53 a random ID and the current time.
55 _content_version_id = "urn:uuid:" + make_uuid() + LocalTime().as_string ();
56 _content_version_label_text = _content_version_id;
59 /** Construct a CPL object from a XML file */
60 CPL::CPL (boost::filesystem::path file)
62 , _content_kind (FEATURE)
64 cxml::Document f ("CompositionPlaylist");
67 _id = f.string_child ("Id");
68 if (_id.length() > 9) {
71 _annotation_text = f.optional_string_child ("AnnotationText").get_value_or ("");
72 _metadata.issuer = f.optional_string_child ("Issuer").get_value_or ("");
73 _metadata.creator = f.optional_string_child ("Creator").get_value_or ("");
74 _metadata.issue_date = f.string_child ("IssueDate");
75 _content_title_text = f.string_child ("ContentTitleText");
76 _content_kind = content_kind_from_string (f.string_child ("ContentKind"));
77 shared_ptr<cxml::Node> content_version = f.optional_node_child ("ContentVersion");
78 if (content_version) {
79 _content_version_id = content_version->optional_string_child ("Id").get_value_or ("");
80 _content_version_label_text = content_version->string_child ("LabelText");
81 content_version->done ();
83 f.ignore_child ("RatingList");
84 _reels = type_grand_children<Reel> (f, "ReelList", "Reel");
86 f.ignore_child ("Issuer");
87 f.ignore_child ("Signer");
88 f.ignore_child ("Signature");
93 /** Add a reel to this CPL.
94 * @param reel Reel to add.
97 CPL::add (boost::shared_ptr<Reel> reel)
99 _reels.push_back (reel);
102 /** Write an CompositonPlaylist XML file.
103 * @param file Filename to write.
104 * @param standard INTEROP or SMPTE.
105 * @param signer Signer to sign the CPL, or 0 to add no signature.
108 CPL::write_xml (boost::filesystem::path file, Standard standard, shared_ptr<const Signer> signer) const
111 xmlpp::Element* root;
112 if (standard == INTEROP) {
113 root = doc.create_root_node ("CompositionPlaylist", "http://www.digicine.com/PROTO-ASDCP-CPL-20040511#");
115 root = doc.create_root_node ("CompositionPlaylist", "http://www.smpte-ra.org/schemas/429-7/2006/CPL");
119 root->set_namespace_declaration ("http://www.w3.org/2000/09/xmldsig#", "dsig");
122 root->add_child("Id")->add_child_text ("urn:uuid:" + _id);
123 root->add_child("AnnotationText")->add_child_text (_annotation_text);
124 root->add_child("IssueDate")->add_child_text (_metadata.issue_date);
125 root->add_child("Issuer")->add_child_text (_metadata.issuer);
126 root->add_child("Creator")->add_child_text (_metadata.creator);
127 root->add_child("ContentTitleText")->add_child_text (_content_title_text);
128 root->add_child("ContentKind")->add_child_text (content_kind_to_string (_content_kind));
130 xmlpp::Node* cv = root->add_child ("ContentVersion");
131 cv->add_child ("Id")->add_child_text (_content_version_id);
132 cv->add_child ("LabelText")->add_child_text (_content_version_label_text);
134 root->add_child("RatingList");
136 xmlpp::Element* reel_list = root->add_child ("ReelList");
138 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
139 (*i)->write_to_cpl (reel_list, standard);
143 signer->sign (root, standard);
146 /* This must not be the _formatted version otherwise signature digests will be wrong */
147 doc.write_to_file (file.string (), "UTF-8");
152 list<shared_ptr<const ReelAsset> >
153 CPL::reel_assets () const
155 list<shared_ptr<const ReelAsset> > c;
157 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
158 if ((*i)->main_picture ()) {
159 c.push_back ((*i)->main_picture());
161 if ((*i)->main_sound ()) {
162 c.push_back ((*i)->main_sound());
164 if ((*i)->main_subtitle ()) {
165 c.push_back ((*i)->main_subtitle());
173 CPL::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
175 shared_ptr<const CPL> other_cpl = dynamic_pointer_cast<const CPL> (other);
180 if (_annotation_text != other_cpl->_annotation_text && !opt.cpl_annotation_texts_can_differ) {
182 s << "CPL: annotation texts differ: " << _annotation_text << " vs " << other_cpl->_annotation_text << "\n";
183 note (DCP_ERROR, s.str ());
187 if (_content_kind != other_cpl->_content_kind) {
188 note (DCP_ERROR, "CPL: content kinds differ");
192 if (_reels.size() != other_cpl->_reels.size()) {
193 note (DCP_ERROR, String::compose ("CPL: reel counts differ (%1 vs %2)", _reels.size(), other_cpl->_reels.size()));
197 list<shared_ptr<Reel> >::const_iterator a = _reels.begin ();
198 list<shared_ptr<Reel> >::const_iterator b = other_cpl->_reels.begin ();
200 while (a != _reels.end ()) {
201 if (!(*a)->equals (*b, opt, note)) {
211 /** @return true if we have any encrypted content */
213 CPL::encrypted () const
215 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
216 if ((*i)->encrypted ()) {
224 /** Add a KDM to this CPL. If the KDM is for any of this CPLs assets it will be used
225 * to decrypt those assets.
229 CPL::add (DecryptedKDM const & kdm)
231 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
237 CPL::resolve_refs (list<shared_ptr<Object> > objects)
239 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
240 (*i)->resolve_refs (objects);
245 CPL::pkl_type (Standard standard) const
249 return "text/xml;asdcpKind=CPL";