2 Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
34 #include "interop_subtitle_asset.h"
35 #include "interop_load_font_node.h"
36 #include "subtitle_asset_internal.h"
38 #include "raw_convert.h"
40 #include "font_asset.h"
41 #include "dcp_assert.h"
42 #include "compose.hpp"
43 #include "subtitle_image.h"
44 #include <libxml++/libxml++.h>
45 #include <boost/foreach.hpp>
46 #include <boost/weak_ptr.hpp>
55 using boost::shared_ptr;
56 using boost::shared_array;
57 using boost::optional;
58 using boost::dynamic_pointer_cast;
61 InteropSubtitleAsset::InteropSubtitleAsset (boost::filesystem::path file)
62 : SubtitleAsset (file)
64 shared_ptr<cxml::Document> xml (new cxml::Document ("DCSubtitle"));
65 xml->read_file (file);
66 _id = xml->string_child ("SubtitleID");
67 _reel_number = xml->string_child ("ReelNumber");
68 _language = xml->string_child ("Language");
69 _movie_title = xml->string_child ("MovieTitle");
70 _load_font_nodes = type_children<InteropLoadFontNode> (xml, "LoadFont");
72 /* Now we need to drop down to xmlpp */
75 xmlpp::Node::NodeList c = xml->node()->get_children ();
76 for (xmlpp::Node::NodeList::const_iterator i = c.begin(); i != c.end(); ++i) {
77 xmlpp::Element const * e = dynamic_cast<xmlpp::Element const *> (*i);
78 if (e && (e->get_name() == "Font" || e->get_name() == "Subtitle")) {
79 parse_subtitles (e, ps, optional<int>(), INTEROP);
84 InteropSubtitleAsset::InteropSubtitleAsset ()
90 InteropSubtitleAsset::xml_as_string () const
93 xmlpp::Element* root = doc.create_root_node ("DCSubtitle");
94 root->set_attribute ("Version", "1.0");
96 root->add_child("SubtitleID")->add_child_text (_id);
97 root->add_child("MovieTitle")->add_child_text (_movie_title);
98 root->add_child("ReelNumber")->add_child_text (raw_convert<string> (_reel_number));
99 root->add_child("Language")->add_child_text (_language);
101 for (list<shared_ptr<InteropLoadFontNode> >::const_iterator i = _load_font_nodes.begin(); i != _load_font_nodes.end(); ++i) {
102 xmlpp::Element* load_font = root->add_child("LoadFont");
103 load_font->set_attribute ("Id", (*i)->id);
104 load_font->set_attribute ("URI", (*i)->uri);
107 subtitles_as_xml (root, 250, INTEROP);
109 return doc.write_to_string ("UTF-8");
113 InteropSubtitleAsset::add_font (string load_id, boost::filesystem::path file)
115 _fonts.push_back (Font (load_id, make_uuid(), file));
116 _load_font_nodes.push_back (shared_ptr<InteropLoadFontNode> (new InteropLoadFontNode (load_id, file.leaf().string ())));
120 InteropSubtitleAsset::equals (shared_ptr<const Asset> other_asset, EqualityOptions options, NoteHandler note) const
122 if (!SubtitleAsset::equals (other_asset, options, note)) {
126 shared_ptr<const InteropSubtitleAsset> other = dynamic_pointer_cast<const InteropSubtitleAsset> (other_asset);
131 list<shared_ptr<InteropLoadFontNode> >::const_iterator i = _load_font_nodes.begin ();
132 list<shared_ptr<InteropLoadFontNode> >::const_iterator j = other->_load_font_nodes.begin ();
134 while (i != _load_font_nodes.end ()) {
135 if (j == other->_load_font_nodes.end ()) {
136 note (DCP_ERROR, "<LoadFont> nodes differ");
141 note (DCP_ERROR, "<LoadFont> nodes differ");
149 if (_movie_title != other->_movie_title) {
150 note (DCP_ERROR, "Subtitle movie titles differ");
157 list<shared_ptr<LoadFontNode> >
158 InteropSubtitleAsset::load_font_nodes () const
160 list<shared_ptr<LoadFontNode> > lf;
161 copy (_load_font_nodes.begin(), _load_font_nodes.end(), back_inserter (lf));
165 /** Write this content to an XML file with its fonts alongside */
167 InteropSubtitleAsset::write (boost::filesystem::path p) const
169 FILE* f = fopen_boost (p, "w");
171 throw FileError ("Could not open file for writing", p, -1);
174 string const s = xml_as_string ();
175 /* length() here gives bytes not characters */
176 fwrite (s.c_str(), 1, s.length(), f);
181 /* Image subtitles */
182 BOOST_FOREACH (shared_ptr<dcp::Subtitle> i, _subtitles) {
183 shared_ptr<dcp::SubtitleImage> im = dynamic_pointer_cast<dcp::SubtitleImage> (i);
185 ImageUUIDMap::const_iterator uuid = _image_subtitle_uuid.find(im);
186 DCP_ASSERT (uuid != _image_subtitle_uuid.end());
187 im->png_image().write (p.parent_path() / String::compose("%1.png", uuid->second));
192 BOOST_FOREACH (shared_ptr<InteropLoadFontNode> i, _load_font_nodes) {
193 boost::filesystem::path file = p.parent_path() / i->uri;
194 FILE* f = fopen_boost (file, "wb");
196 throw FileError ("could not open font file for writing", file, errno);
198 list<Font>::const_iterator j = _fonts.begin ();
199 while (j != _fonts.end() && j->load_id != i->id) {
202 if (j != _fonts.end ()) {
203 fwrite (j->data.data().get(), 1, j->data.size(), f);
210 /** Look at a supplied list of assets and find the fonts. Then match these
211 * fonts up with anything requested by a <LoadFont> so that _fonts contains
212 * a list of font ID, load ID and data.
215 InteropSubtitleAsset::resolve_fonts (list<shared_ptr<Asset> > assets)
217 BOOST_FOREACH (shared_ptr<Asset> i, assets) {
218 shared_ptr<FontAsset> font = dynamic_pointer_cast<FontAsset> (i);
223 BOOST_FOREACH (shared_ptr<InteropLoadFontNode> j, _load_font_nodes) {
225 BOOST_FOREACH (Font const & k, _fonts) {
226 if (k.load_id == j->id) {
232 if (!got && font->file() && j->uri == font->file()->leaf().string()) {
233 _fonts.push_back (Font (j->id, i->id(), font->file().get()));
240 InteropSubtitleAsset::add_font_assets (list<shared_ptr<Asset> >& assets)
242 BOOST_FOREACH (Font const & i, _fonts) {
244 assets.push_back (shared_ptr<FontAsset> (new FontAsset (i.uuid, i.file.get ())));