2 Copyright (C) 2012 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.
21 * @brief A class to create a DCP.
29 #include <boost/filesystem.hpp>
30 #include <boost/lexical_cast.hpp>
31 #include <boost/algorithm/string.hpp>
32 #include <boost/lexical_cast.hpp>
33 #include <libxml++/libxml++.h>
34 #include <xmlsec/xmldsig.h>
35 #include <xmlsec/app.h>
38 #include "sound_asset.h"
39 #include "picture_asset.h"
40 #include "subtitle_asset.h"
43 #include "exceptions.h"
44 #include "parse/pkl.h"
45 #include "parse/asset_map.h"
48 #include "encryption.h"
53 using std::stringstream;
57 using std::back_inserter;
59 using boost::shared_ptr;
60 using boost::lexical_cast;
61 using namespace libdcp;
63 DCP::DCP (string directory)
64 : _directory (directory)
66 boost::filesystem::create_directories (directory);
70 DCP::write_xml (bool interop, XMLMetadata const & metadata, shared_ptr<Encryption> crypt) const
72 for (list<shared_ptr<CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
73 (*i)->write_xml (interop, metadata, crypt);
76 string pkl_uuid = make_uuid ();
77 string pkl_path = write_pkl (pkl_uuid, interop, metadata, crypt);
80 write_assetmap (pkl_uuid, boost::filesystem::file_size (pkl_path), interop, metadata);
84 DCP::write_pkl (string pkl_uuid, bool interop, XMLMetadata const & metadata, shared_ptr<Encryption> crypt) const
86 assert (!_cpls.empty ());
88 boost::filesystem::path p;
91 s << pkl_uuid << "_pkl.xml";
97 pkl = doc.create_root_node("PackingList", "http://www.digicine.com/PROTO-ASDCP-PKL-20040311#");
99 pkl = doc.create_root_node("PackingList", "http://www.smpte-ra.org/schemas/429-8/2007/PKL");
103 pkl->set_namespace_declaration ("http://www.w3.org/2000/09/xmldsig#", "dsig");
106 pkl->add_child("Id")->add_child_text ("urn:uuid:" + pkl_uuid);
107 /* XXX: this is a bit of a hack */
108 pkl->add_child("AnnotationText")->add_child_text(_cpls.front()->name());
109 pkl->add_child("IssueDate")->add_child_text (metadata.issue_date);
110 pkl->add_child("Issuer")->add_child_text (metadata.issuer);
111 pkl->add_child("Creator")->add_child_text (metadata.creator);
113 xmlpp::Element* asset_list = pkl->add_child("AssetList");
114 list<shared_ptr<const Asset> > a = assets ();
115 for (list<shared_ptr<const Asset> >::const_iterator i = a.begin(); i != a.end(); ++i) {
116 (*i)->write_to_pkl (asset_list);
119 for (list<shared_ptr<CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
120 (*i)->write_to_pkl (asset_list);
124 sign (pkl, crypt->certificates, crypt->signer_key, interop);
127 doc.write_to_file_formatted (p.string (), "UTF-8");
132 DCP::write_volindex () const
134 boost::filesystem::path p;
139 xmlpp::Element* root = doc.create_root_node ("VolumeIndex", "http://www.smpte-ra.org/schemas/429-9/2007/AM");
140 root->add_child("Index")->add_child_text ("1");
141 doc.write_to_file_formatted (p.string (), "UTF-8");
145 DCP::write_assetmap (string pkl_uuid, int pkl_length, bool interop, XMLMetadata const & metadata) const
147 boost::filesystem::path p;
152 xmlpp::Element* root;
154 root = doc.create_root_node ("AssetMap", "http://www.digicine.com/PROTO-ASDCP-AM-20040311#");
156 root = doc.create_root_node ("AssetMap", "http://www.smpte-ra.org/schemas/429-9/2007/AM");
159 root->add_child("Id")->add_child_text ("urn:uuid:" + make_uuid());
160 root->add_child("AnnotationText")->add_child_text ("Created by " + metadata.creator);
162 root->add_child("VolumeCount")->add_child_text ("1");
163 root->add_child("IssueDate")->add_child_text (metadata.issue_date);
164 root->add_child("Issuer")->add_child_text (metadata.issuer);
165 root->add_child("Creator")->add_child_text (metadata.creator);
167 root->add_child("Creator")->add_child_text (metadata.creator);
168 root->add_child("VolumeCount")->add_child_text ("1");
169 root->add_child("IssueDate")->add_child_text (metadata.issue_date);
170 root->add_child("Issuer")->add_child_text (metadata.issuer);
173 xmlpp::Node* asset_list = root->add_child ("AssetList");
175 xmlpp::Node* asset = asset_list->add_child ("Asset");
176 asset->add_child("Id")->add_child_text ("urn:uuid:" + pkl_uuid);
177 asset->add_child("PackingList")->add_child_text ("true");
178 xmlpp::Node* chunk_list = asset->add_child ("ChunkList");
179 xmlpp::Node* chunk = chunk_list->add_child ("Chunk");
180 chunk->add_child("Path")->add_child_text (pkl_uuid + "_pkl.xml");
181 chunk->add_child("VolumeIndex")->add_child_text ("1");
182 chunk->add_child("Offset")->add_child_text ("0");
183 chunk->add_child("Length")->add_child_text (lexical_cast<string> (pkl_length));
185 for (list<shared_ptr<CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
186 (*i)->write_to_assetmap (asset_list);
189 list<shared_ptr<const Asset> > a = assets ();
190 for (list<shared_ptr<const Asset> >::const_iterator i = a.begin(); i != a.end(); ++i) {
191 (*i)->write_to_assetmap (asset_list);
194 doc.write_to_file_formatted (p.string (), "UTF-8");
199 DCP::read (bool require_mxfs)
203 shared_ptr<parse::AssetMap> asset_map;
205 boost::filesystem::path p = _directory;
207 if (boost::filesystem::exists (p)) {
208 asset_map.reset (new libdcp::parse::AssetMap (p.string ()));
212 if (boost::filesystem::exists (p)) {
213 asset_map.reset (new libdcp::parse::AssetMap (p.string ()));
215 boost::throw_exception (DCPReadError ("could not find AssetMap file"));
219 } catch (FileError& e) {
220 boost::throw_exception (FileError ("could not load AssetMap file", files.asset_map));
223 for (list<shared_ptr<libdcp::parse::AssetMapAsset> >::const_iterator i = asset_map->assets.begin(); i != asset_map->assets.end(); ++i) {
224 if ((*i)->chunks.size() != 1) {
225 boost::throw_exception (XMLError ("unsupported asset chunk count"));
228 boost::filesystem::path t = _directory;
229 t /= (*i)->chunks.front()->path;
231 if (boost::algorithm::ends_with (t.string(), ".mxf") || boost::algorithm::ends_with (t.string(), ".ttf")) {
235 xmlpp::DomParser* p = new xmlpp::DomParser;
237 p->parse_file (t.string());
238 } catch (std::exception& e) {
243 string const root = p->get_document()->get_root_node()->get_name ();
246 if (root == "CompositionPlaylist") {
247 files.cpls.push_back (t.string());
248 } else if (root == "PackingList") {
249 if (files.pkl.empty ()) {
250 files.pkl = t.string();
252 boost::throw_exception (DCPReadError ("duplicate PKLs found"));
257 if (files.cpls.empty ()) {
258 boost::throw_exception (FileError ("no CPL files found", ""));
261 if (files.pkl.empty ()) {
262 boost::throw_exception (FileError ("no PKL file found", ""));
265 shared_ptr<parse::PKL> pkl;
267 pkl.reset (new parse::PKL (files.pkl));
268 } catch (FileError& e) {
269 boost::throw_exception (FileError ("could not load PKL file", files.pkl));
275 _asset_maps.push_back (make_pair (boost::filesystem::absolute (_directory).string(), asset_map));
277 for (list<string>::iterator i = files.cpls.begin(); i != files.cpls.end(); ++i) {
278 _cpls.push_back (shared_ptr<CPL> (new CPL (_directory, *i, _asset_maps, require_mxfs)));
283 DCP::equals (DCP const & other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
285 if (_cpls.size() != other._cpls.size()) {
286 note (ERROR, "CPL counts differ");
290 list<shared_ptr<CPL> >::const_iterator a = _cpls.begin ();
291 list<shared_ptr<CPL> >::const_iterator b = other._cpls.begin ();
293 while (a != _cpls.end ()) {
294 if (!(*a)->equals (*b->get(), opt, note)) {
305 DCP::add_cpl (shared_ptr<CPL> cpl)
307 _cpls.push_back (cpl);
310 class AssetComparator
313 bool operator() (shared_ptr<const Asset> a, shared_ptr<const Asset> b) {
314 return a->uuid() < b->uuid();
318 list<shared_ptr<const Asset> >
321 list<shared_ptr<const Asset> > a;
322 for (list<shared_ptr<CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
323 list<shared_ptr<const Asset> > t = (*i)->assets ();
327 a.sort (AssetComparator ());
333 DCP::encrypted () const
335 for (list<shared_ptr<CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
336 if ((*i)->encrypted ()) {
345 DCP::add_kdm (KDM const & kdm)
347 list<KDMCipher> ciphers = kdm.ciphers ();
349 for (list<shared_ptr<CPL> >::iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
350 for (list<KDMCipher>::iterator j = ciphers.begin(); j != ciphers.end(); ++j) {
351 if (j->cpl_id() == (*i)->id()) {
359 DCP::add_assets_from (DCP const & ov)
361 copy (ov._asset_maps.begin(), ov._asset_maps.end(), back_inserter (_asset_maps));