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.
22 #include "mono_picture_mxf.h"
23 #include "stereo_picture_mxf.h"
24 #include "sound_mxf.h"
25 #include "subtitle_content.h"
29 #include "exceptions.h"
31 #include "compose.hpp"
32 #include "reel_picture_asset.h"
33 #include "reel_sound_asset.h"
34 #include "reel_subtitle_asset.h"
35 #include <libxml/parser.h>
38 using std::stringstream;
43 using boost::shared_ptr;
44 using boost::lexical_cast;
45 using boost::optional;
48 CPL::CPL (string annotation_text, ContentKind content_kind)
49 : _annotation_text (annotation_text)
50 /* default _content_title_text to _annotation_text */
51 , _content_title_text (annotation_text)
52 , _content_kind (content_kind)
53 , _content_version_id ("urn:uuid:" + make_uuid ())
55 /* default _content_version_id to and _content_version_label to
56 a random ID and the current time.
58 time_t now = time (0);
59 struct tm* tm = localtime (&now);
60 _content_version_id = "urn:uuid:" + make_uuid() + tm_to_string (tm);
61 _content_version_label_text = _content_version_id;
64 /** Construct a CPL object from a XML file */
65 CPL::CPL (boost::filesystem::path file)
67 , _content_kind (FEATURE)
69 cxml::Document f ("CompositionPlaylist");
72 _id = f.string_child ("Id");
73 if (_id.length() > 9) {
76 _annotation_text = f.optional_string_child ("AnnotationText").get_value_or ("");
77 _metadata.issuer = f.optional_string_child ("Issuer").get_value_or ("");
78 _metadata.creator = f.optional_string_child ("Creator").get_value_or ("");
79 _metadata.issue_date = f.string_child ("IssueDate");
80 _content_title_text = f.string_child ("ContentTitleText");
81 _content_kind = content_kind_from_string (f.string_child ("ContentKind"));
82 shared_ptr<cxml::Node> content_version = f.optional_node_child ("ContentVersion");
83 if (content_version) {
84 _content_version_id = content_version->optional_string_child ("Id").get_value_or ("");
85 _content_version_label_text = content_version->string_child ("LabelText");
86 content_version->done ();
88 f.ignore_child ("RatingList");
89 _reels = type_grand_children<Reel> (f, "ReelList", "Reel");
91 f.ignore_child ("Issuer");
92 f.ignore_child ("Signer");
93 f.ignore_child ("Signature");
98 /** Add a reel to this CPL.
99 * @param reel Reel to add.
102 CPL::add (boost::shared_ptr<Reel> reel)
104 _reels.push_back (reel);
107 /** Write an CompositonPlaylist XML file.
108 * @param file Filename to write.
109 * @param standard INTEROP or SMPTE.
110 * @param signer Signer to sign the CPL, or 0 to add no signature.
113 CPL::write_xml (boost::filesystem::path file, Standard standard, shared_ptr<const Signer> signer) const
116 xmlpp::Element* root;
117 if (standard == INTEROP) {
118 root = doc.create_root_node ("CompositionPlaylist", "http://www.digicine.com/PROTO-ASDCP-CPL-20040511#");
120 root = doc.create_root_node ("CompositionPlaylist", "http://www.smpte-ra.org/schemas/429-7/2006/CPL");
124 root->set_namespace_declaration ("http://www.w3.org/2000/09/xmldsig#", "dsig");
127 root->add_child("Id")->add_child_text ("urn:uuid:" + _id);
128 root->add_child("AnnotationText")->add_child_text (_annotation_text);
129 root->add_child("IssueDate")->add_child_text (_metadata.issue_date);
130 root->add_child("Issuer")->add_child_text (_metadata.issuer);
131 root->add_child("Creator")->add_child_text (_metadata.creator);
132 root->add_child("ContentTitleText")->add_child_text (_content_title_text);
133 root->add_child("ContentKind")->add_child_text (content_kind_to_string (_content_kind));
135 xmlpp::Node* cv = root->add_child ("ContentVersion");
136 cv->add_child ("Id")->add_child_text (_content_version_id);
137 cv->add_child ("LabelText")->add_child_text (_content_version_label_text);
139 root->add_child("RatingList");
141 xmlpp::Element* reel_list = root->add_child ("ReelList");
143 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
144 (*i)->write_to_cpl (reel_list, standard);
148 signer->sign (root, standard);
151 /* This must not be the _formatted version otherwise signature digests will be wrong */
152 doc.write_to_file (file.string (), "UTF-8");
157 list<shared_ptr<const Content> >
158 CPL::content () const
160 list<shared_ptr<const Content> > c;
162 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
163 if ((*i)->main_picture ()) {
164 c.push_back ((*i)->main_picture()->mxf ());
166 if ((*i)->main_sound ()) {
167 c.push_back ((*i)->main_sound()->mxf ());
169 if ((*i)->main_subtitle ()) {
170 c.push_back ((*i)->main_subtitle()->subtitle_content ());
178 CPL::equals (CPL const & other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
180 if (_annotation_text != other._annotation_text && !opt.cpl_annotation_texts_can_differ) {
182 s << "annotation texts differ: " << _annotation_text << " vs " << other._annotation_text << "\n";
183 note (ERROR, s.str ());
187 if (_content_kind != other._content_kind) {
188 note (ERROR, "content kinds differ");
192 if (_reels.size() != other._reels.size()) {
193 note (ERROR, String::compose ("reel counts differ (%1 vs %2)", _reels.size(), other._reels.size()));
197 list<shared_ptr<Reel> >::const_iterator a = _reels.begin ();
198 list<shared_ptr<Reel> >::const_iterator b = other._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 (KDM const & kdm)
231 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
236 /** Set a private key for every MXF referenced by this CPL. This will allow the data
237 * to be decrypted or encrypted.
238 * @param key Key to use.
241 CPL::set_mxf_keys (Key key)
243 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
244 (*i)->set_mxf_keys (key);
249 CPL::resolve_refs (list<shared_ptr<Object> > objects)
251 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
252 (*i)->resolve_refs (objects);
257 CPL::pkl_type (Standard standard) const
261 return "text/xml;asdcpKind=CPL";