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.
20 #include "subtitle_asset.h"
23 using namespace boost;
24 using namespace libdcp;
26 SubtitleAsset::SubtitleAsset (string directory, string xml)
27 : Asset (directory, xml)
28 , XMLFile (path().string(), "DCSubtitle")
30 _subtitle_id = string_node ("SubtitleID");
31 _movie_title = string_node ("MovieTitle");
32 _reel_number = int64_node ("ReelNumber");
33 _language = string_node ("Language");
35 ignore_node ("LoadFont");
37 list<shared_ptr<FontNode> > font_nodes = sub_nodes<FontNode> ("Font");
38 _load_font_nodes = sub_nodes<LoadFontNode> ("LoadFont");
40 /* Now make Subtitle objects to represent the raw XML nodes
44 list<shared_ptr<FontNode> > current_font_nodes;
45 for (list<shared_ptr<FontNode> >::iterator i = font_nodes.begin(); i != font_nodes.end(); ++i) {
46 examine_font_node (*i, current_font_nodes);
51 SubtitleAsset::examine_font_node (shared_ptr<FontNode> font_node, list<shared_ptr<FontNode> >& current_font_nodes)
53 current_font_nodes.push_back (font_node);
55 for (list<shared_ptr<SubtitleNode> >::iterator j = font_node->subtitle_nodes.begin(); j != font_node->subtitle_nodes.end(); ++j) {
56 for (list<shared_ptr<TextNode> >::iterator k = (*j)->text_nodes.begin(); k != (*j)->text_nodes.end(); ++k) {
57 FontNode effective (current_font_nodes);
58 _subtitles.push_back (
59 shared_ptr<Subtitle> (
61 font_id_to_name (effective.id),
62 effective.italic.get(),
63 effective.color.get(),
70 effective.effect.get(),
71 effective.effect_color.get()
78 for (list<shared_ptr<FontNode> >::iterator j = font_node->font_nodes.begin(); j != font_node->font_nodes.end(); ++j) {
79 examine_font_node (*j, current_font_nodes);
82 current_font_nodes.pop_back ();
85 FontNode::FontNode (xmlpp::Node const * node)
88 id = optional_string_attribute ("Id");
89 size = optional_int64_attribute ("Size");
90 italic = optional_bool_attribute ("Italic");
91 color = optional_color_attribute ("Color");
92 string const e = optional_string_attribute ("Effect");
95 } else if (e == "border") {
97 } else if (e == "shadow") {
99 } else if (!e.empty ()) {
100 throw DCPReadError ("unknown subtitle effect type");
102 effect_color = optional_color_attribute ("EffectColor");
103 subtitle_nodes = sub_nodes<SubtitleNode> ("Subtitle");
104 font_nodes = sub_nodes<FontNode> ("Font");
107 FontNode::FontNode (list<shared_ptr<FontNode> > const & font_nodes)
111 , effect_color ("FFFFFFFF")
113 for (list<shared_ptr<FontNode> >::const_iterator i = font_nodes.begin(); i != font_nodes.end(); ++i) {
114 if (!(*i)->id.empty ()) {
117 if ((*i)->size != 0) {
121 italic = (*i)->italic.get ();
124 color = (*i)->color.get ();
127 effect = (*i)->effect.get ();
129 if ((*i)->effect_color) {
130 effect_color = (*i)->effect_color.get ();
135 LoadFontNode::LoadFontNode (xmlpp::Node const * node)
138 id = string_attribute ("Id");
139 uri = string_attribute ("URI");
143 SubtitleNode::SubtitleNode (xmlpp::Node const * node)
146 in = time_attribute ("TimeIn");
147 out = time_attribute ("TimeOut");
148 text_nodes = sub_nodes<TextNode> ("Text");
151 TextNode::TextNode (xmlpp::Node const * node)
156 v_position = float_attribute ("VPosition");
157 string const v = optional_string_attribute ("VAlign");
160 } else if (v == "center") {
162 } else if (v == "bottom") {
167 list<shared_ptr<Subtitle> >
168 SubtitleAsset::subtitles_at (Time t) const
170 list<shared_ptr<Subtitle> > s;
171 for (list<shared_ptr<Subtitle> >::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
172 if ((*i)->in() <= t && t <= (*i)->out ()) {
181 SubtitleAsset::font_id_to_name (string id) const
183 list<shared_ptr<LoadFontNode> >::const_iterator i = _load_font_nodes.begin();
184 while (i != _load_font_nodes.end() && (*i)->id != id) {
188 if (i == _load_font_nodes.end ()) {
192 if ((*i)->uri == "arial.ttf") {
218 , _v_position (v_position)
222 , _effect_color (effect_color)
228 Subtitle::size_in_pixels (int screen_height) const
230 /* Size in the subtitle file is given in points as if the screen
231 height is 11 inches, so a 72pt font would be 1/11th of the screen
235 return _size * screen_height / (11 * 72);