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/algorithm/string.hpp>
31 #include <boost/lexical_cast.hpp>
32 #include <libxml++/libxml++.h>
35 #include "sound_asset.h"
36 #include "picture_asset.h"
37 #include "subtitle_asset.h"
40 #include "exceptions.h"
41 #include "parse/pkl.h"
42 #include "parse/asset_map.h"
48 using std::stringstream;
51 using boost::shared_ptr;
52 using boost::lexical_cast;
53 using namespace libdcp;
55 DCP::DCP (string directory)
56 : _directory (directory)
58 boost::filesystem::create_directories (directory);
62 DCP::write_xml (XMLMetadata const & metadata) const
64 for (list<shared_ptr<const CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
65 (*i)->write_xml (metadata);
68 string pkl_uuid = make_uuid ();
69 string pkl_path = write_pkl (pkl_uuid, metadata);
72 write_assetmap (pkl_uuid, boost::filesystem::file_size (pkl_path), metadata);
76 DCP::write_pkl (string pkl_uuid, XMLMetadata const & metadata) const
78 assert (!_cpls.empty ());
80 boost::filesystem::path p;
83 s << pkl_uuid << "_pkl.xml";
87 xmlpp::Element* root = doc.create_root_node ("PackingList", "http://www.smpte-ra.org/schemas/429-8/2007/PKL");
89 root->add_child("Id")->add_child_text ("urn:uuid:" + pkl_uuid);
90 /* XXX: this is a bit of a hack */
91 root->add_child("AnnotationText")->add_child_text (_cpls.front()->name());
92 root->add_child("IssueDate")->add_child_text (metadata.issue_date);
93 root->add_child("Issuer")->add_child_text (metadata.issuer);
94 root->add_child("Creator")->add_child_text (metadata.creator);
96 xmlpp::Node* asset_list = root->add_child ("AssetList");
98 list<shared_ptr<const Asset> > a = assets ();
99 for (list<shared_ptr<const Asset> >::const_iterator i = a.begin(); i != a.end(); ++i) {
100 (*i)->write_to_pkl (asset_list);
103 for (list<shared_ptr<const CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
104 (*i)->write_to_pkl (asset_list);
107 doc.write_to_file_formatted (p.string (), "UTF-8");
112 DCP::write_volindex () const
114 boost::filesystem::path p;
119 xmlpp::Element* root = doc.create_root_node ("VolumeIndex", "http://www.smpte-ra.org/schemas/429-9/2007/AM");
120 root->add_child("Index")->add_child_text ("1");
121 doc.write_to_file_formatted (p.string (), "UTF-8");
125 DCP::write_assetmap (string pkl_uuid, int pkl_length, XMLMetadata const & metadata) const
127 boost::filesystem::path p;
132 xmlpp::Element* root = doc.create_root_node ("AssetMap", "http://www.smpte-ra.org/schemas/429-9/2007/AM");
134 root->add_child("Id")->add_child_text ("urn:uuid:" + make_uuid());
135 root->add_child("Creator")->add_child_text (metadata.creator);
136 root->add_child("VolumeCount")->add_child_text ("1");
137 root->add_child("IssueDate")->add_child_text (metadata.issue_date);
138 root->add_child("Issuer")->add_child_text (metadata.issuer);
139 xmlpp::Node* asset_list = root->add_child ("AssetList");
141 xmlpp::Node* asset = asset_list->add_child ("Asset");
142 asset->add_child("Id")->add_child_text ("urn:uuid:" + pkl_uuid);
143 asset->add_child("PackingList")->add_child_text ("true");
144 xmlpp::Node* chunk_list = asset->add_child ("ChunkList");
145 xmlpp::Node* chunk = chunk_list->add_child ("Chunk");
146 chunk->add_child("Path")->add_child_text (pkl_uuid + "_pkl.xml");
147 chunk->add_child("VolumeIndex")->add_child_text ("1");
148 chunk->add_child("Offset")->add_child_text ("0");
149 chunk->add_child("Length")->add_child_text (lexical_cast<string> (pkl_length));
151 for (list<shared_ptr<const CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
152 (*i)->write_to_assetmap (asset_list);
155 list<shared_ptr<const Asset> > a = assets ();
156 for (list<shared_ptr<const Asset> >::const_iterator i = a.begin(); i != a.end(); ++i) {
157 (*i)->write_to_assetmap (asset_list);
160 doc.write_to_file_formatted (p.string (), "UTF-8");
165 DCP::read (bool require_mxfs)
169 shared_ptr<parse::AssetMap> asset_map;
171 boost::filesystem::path p = _directory;
173 if (boost::filesystem::exists (p)) {
174 asset_map.reset (new libdcp::parse::AssetMap (p.string ()));
178 if (boost::filesystem::exists (p)) {
179 asset_map.reset (new libdcp::parse::AssetMap (p.string ()));
181 boost::throw_exception (DCPReadError ("could not find AssetMap file"));
185 } catch (FileError& e) {
186 boost::throw_exception (FileError ("could not load AssetMap file", files.asset_map));
189 for (list<shared_ptr<libdcp::parse::AssetMapAsset> >::const_iterator i = asset_map->assets.begin(); i != asset_map->assets.end(); ++i) {
190 if ((*i)->chunks.size() != 1) {
191 boost::throw_exception (XMLError ("unsupported asset chunk count"));
194 boost::filesystem::path t = _directory;
195 t /= (*i)->chunks.front()->path;
197 if (boost::algorithm::ends_with (t.string(), ".mxf") || boost::algorithm::ends_with (t.string(), ".ttf")) {
201 xmlpp::DomParser* p = new xmlpp::DomParser;
203 p->parse_file (t.string());
204 } catch (std::exception& e) {
209 string const root = p->get_document()->get_root_node()->get_name ();
212 if (root == "CompositionPlaylist") {
213 files.cpls.push_back (t.string());
214 } else if (root == "PackingList") {
215 if (files.pkl.empty ()) {
216 files.pkl = t.string();
218 boost::throw_exception (DCPReadError ("duplicate PKLs found"));
223 if (files.cpls.empty ()) {
224 boost::throw_exception (FileError ("no CPL files found", ""));
227 if (files.pkl.empty ()) {
228 boost::throw_exception (FileError ("no PKL file found", ""));
231 shared_ptr<parse::PKL> pkl;
233 pkl.reset (new parse::PKL (files.pkl));
234 } catch (FileError& e) {
235 boost::throw_exception (FileError ("could not load PKL file", files.pkl));
241 for (list<string>::iterator i = files.cpls.begin(); i != files.cpls.end(); ++i) {
242 _cpls.push_back (shared_ptr<CPL> (new CPL (_directory, *i, asset_map, require_mxfs)));
247 DCP::equals (DCP const & other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
249 if (_cpls.size() != other._cpls.size()) {
250 note (ERROR, "CPL counts differ");
254 list<shared_ptr<const CPL> >::const_iterator a = _cpls.begin ();
255 list<shared_ptr<const CPL> >::const_iterator b = other._cpls.begin ();
257 while (a != _cpls.end ()) {
258 if (!(*a)->equals (*b->get(), opt, note)) {
270 DCP::add_cpl (shared_ptr<CPL> cpl)
272 _cpls.push_back (cpl);
275 class AssetComparator
278 bool operator() (shared_ptr<const Asset> a, shared_ptr<const Asset> b) {
279 return a->uuid() < b->uuid();
283 list<shared_ptr<const Asset> >
286 list<shared_ptr<const Asset> > a;
287 for (list<shared_ptr<const CPL> >::const_iterator i = _cpls.begin(); i != _cpls.end(); ++i) {
288 list<shared_ptr<const Asset> > t = (*i)->assets ();