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.
20 #include "raw_convert.h"
23 #include "mono_picture_mxf.h"
24 #include "stereo_picture_mxf.h"
25 #include "sound_mxf.h"
26 #include "subtitle_content.h"
30 #include "exceptions.h"
32 #include "compose.hpp"
33 #include "reel_picture_asset.h"
34 #include "reel_sound_asset.h"
35 #include "reel_subtitle_asset.h"
36 #include "local_time.h"
37 #include <libxml/parser.h>
40 using std::stringstream;
45 using boost::shared_ptr;
46 using boost::optional;
49 CPL::CPL (string annotation_text, ContentKind content_kind)
50 : _annotation_text (annotation_text)
51 /* default _content_title_text to _annotation_text */
52 , _content_title_text (annotation_text)
53 , _content_kind (content_kind)
54 , _content_version_id ("urn:uuid:" + make_uuid ())
56 /* default _content_version_id to and _content_version_label to
57 a random ID and the current time.
59 _content_version_id = "urn:uuid:" + make_uuid() + LocalTime().as_string ();
60 _content_version_label_text = _content_version_id;
63 /** Construct a CPL object from a XML file */
64 CPL::CPL (boost::filesystem::path file)
66 , _content_kind (FEATURE)
68 cxml::Document f ("CompositionPlaylist");
71 _id = f.string_child ("Id");
72 if (_id.length() > 9) {
75 _annotation_text = f.optional_string_child ("AnnotationText").get_value_or ("");
76 _metadata.issuer = f.optional_string_child ("Issuer").get_value_or ("");
77 _metadata.creator = f.optional_string_child ("Creator").get_value_or ("");
78 _metadata.issue_date = f.string_child ("IssueDate");
79 _content_title_text = f.string_child ("ContentTitleText");
80 _content_kind = content_kind_from_string (f.string_child ("ContentKind"));
81 shared_ptr<cxml::Node> content_version = f.optional_node_child ("ContentVersion");
82 if (content_version) {
83 _content_version_id = content_version->optional_string_child ("Id").get_value_or ("");
84 _content_version_label_text = content_version->string_child ("LabelText");
85 content_version->done ();
87 f.ignore_child ("RatingList");
88 _reels = type_grand_children<Reel> (f, "ReelList", "Reel");
90 f.ignore_child ("Issuer");
91 f.ignore_child ("Signer");
92 f.ignore_child ("Signature");
97 /** Add a reel to this CPL.
98 * @param reel Reel to add.
101 CPL::add (boost::shared_ptr<Reel> reel)
103 _reels.push_back (reel);
106 /** Write an CompositonPlaylist XML file.
107 * @param file Filename to write.
108 * @param standard INTEROP or SMPTE.
109 * @param signer Signer to sign the CPL, or 0 to add no signature.
112 CPL::write_xml (boost::filesystem::path file, Standard standard, shared_ptr<const Signer> signer) const
115 xmlpp::Element* root;
116 if (standard == INTEROP) {
117 root = doc.create_root_node ("CompositionPlaylist", "http://www.digicine.com/PROTO-ASDCP-CPL-20040511#");
119 root = doc.create_root_node ("CompositionPlaylist", "http://www.smpte-ra.org/schemas/429-7/2006/CPL");
123 root->set_namespace_declaration ("http://www.w3.org/2000/09/xmldsig#", "dsig");
126 root->add_child("Id")->add_child_text ("urn:uuid:" + _id);
127 root->add_child("AnnotationText")->add_child_text (_annotation_text);
128 root->add_child("IssueDate")->add_child_text (_metadata.issue_date);
129 root->add_child("Issuer")->add_child_text (_metadata.issuer);
130 root->add_child("Creator")->add_child_text (_metadata.creator);
131 root->add_child("ContentTitleText")->add_child_text (_content_title_text);
132 root->add_child("ContentKind")->add_child_text (content_kind_to_string (_content_kind));
134 xmlpp::Node* cv = root->add_child ("ContentVersion");
135 cv->add_child ("Id")->add_child_text (_content_version_id);
136 cv->add_child ("LabelText")->add_child_text (_content_version_label_text);
138 root->add_child("RatingList");
140 xmlpp::Element* reel_list = root->add_child ("ReelList");
142 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
143 (*i)->write_to_cpl (reel_list, standard);
147 signer->sign (root, standard);
150 /* This must not be the _formatted version otherwise signature digests will be wrong */
151 doc.write_to_file (file.string (), "UTF-8");
156 list<shared_ptr<const ReelAsset> >
157 CPL::reel_assets () const
159 list<shared_ptr<const ReelAsset> > c;
161 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
162 if ((*i)->main_picture ()) {
163 c.push_back ((*i)->main_picture());
165 if ((*i)->main_sound ()) {
166 c.push_back ((*i)->main_sound());
168 if ((*i)->main_subtitle ()) {
169 c.push_back ((*i)->main_subtitle());
177 CPL::equals (CPL const & other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
179 if (_annotation_text != other._annotation_text && !opt.cpl_annotation_texts_can_differ) {
181 s << "annotation texts differ: " << _annotation_text << " vs " << other._annotation_text << "\n";
182 note (DCP_ERROR, s.str ());
186 if (_content_kind != other._content_kind) {
187 note (DCP_ERROR, "content kinds differ");
191 if (_reels.size() != other._reels.size()) {
192 note (DCP_ERROR, String::compose ("reel counts differ (%1 vs %2)", _reels.size(), other._reels.size()));
196 list<shared_ptr<Reel> >::const_iterator a = _reels.begin ();
197 list<shared_ptr<Reel> >::const_iterator b = other._reels.begin ();
199 while (a != _reels.end ()) {
200 if (!(*a)->equals (*b, opt, note)) {
210 /** @return true if we have any encrypted content */
212 CPL::encrypted () const
214 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
215 if ((*i)->encrypted ()) {
223 /** Add a KDM to this CPL. If the KDM is for any of this CPLs assets it will be used
224 * to decrypt those assets.
228 CPL::add (DecryptedKDM const & kdm)
230 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
235 /** Set a private key for every MXF referenced by this CPL. This will allow the data
236 * to be decrypted or encrypted.
237 * @param key Key to use.
240 CPL::set_mxf_keys (Key key)
242 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
243 (*i)->set_mxf_keys (key);
248 CPL::resolve_refs (list<shared_ptr<Object> > objects)
250 for (list<shared_ptr<Reel> >::const_iterator i = _reels.begin(); i != _reels.end(); ++i) {
251 (*i)->resolve_refs (objects);
256 CPL::pkl_type (Standard standard) const
260 return "text/xml;asdcpKind=CPL";