2 Copyright (C) 2013-2018 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic 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 DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "subtitle_content.h"
23 #include "exceptions.h"
26 #include <dcp/raw_convert.h>
27 #include <libcxml/cxml.h>
28 #include <libxml++/libxml++.h>
29 #include <boost/foreach.hpp>
38 using boost::shared_ptr;
39 using boost::dynamic_pointer_cast;
40 using boost::optional;
41 using dcp::raw_convert;
43 int const SubtitleContentProperty::X_OFFSET = 500;
44 int const SubtitleContentProperty::Y_OFFSET = 501;
45 int const SubtitleContentProperty::X_SCALE = 502;
46 int const SubtitleContentProperty::Y_SCALE = 503;
47 int const SubtitleContentProperty::USE = 504;
48 int const SubtitleContentProperty::BURN = 505;
49 int const SubtitleContentProperty::LANGUAGE = 506;
50 int const SubtitleContentProperty::FONTS = 507;
51 int const SubtitleContentProperty::COLOUR = 508;
52 int const SubtitleContentProperty::EFFECT = 509;
53 int const SubtitleContentProperty::EFFECT_COLOUR = 510;
54 int const SubtitleContentProperty::LINE_SPACING = 511;
55 int const SubtitleContentProperty::FADE_IN = 512;
56 int const SubtitleContentProperty::FADE_OUT = 513;
57 int const SubtitleContentProperty::OUTLINE_WIDTH = 514;
59 SubtitleContent::SubtitleContent (Content* parent)
60 : ContentPart (parent)
74 shared_ptr<SubtitleContent>
75 SubtitleContent::from_xml (Content* parent, cxml::ConstNodePtr node, int version)
78 /* With old metadata FFmpeg content has the subtitle-related tags even with no
79 subtitle streams, so check for that.
81 if (node->string_child("Type") == "FFmpeg" && node->node_children("SubtitleStream").empty()) {
82 return shared_ptr<SubtitleContent> ();
85 /* Otherwise we can drop through to the newer logic */
88 if (!node->optional_number_child<double>("SubtitleXOffset") && !node->optional_number_child<double>("SubtitleOffset")) {
89 return shared_ptr<SubtitleContent> ();
92 return shared_ptr<SubtitleContent> (new SubtitleContent (parent, node, version));
95 SubtitleContent::SubtitleContent (Content* parent, cxml::ConstNodePtr node, int version)
96 : ContentPart (parent)
103 , _line_spacing (node->optional_number_child<double>("LineSpacing").get_value_or (1))
104 , _fade_in (node->optional_number_child<Frame>("SubtitleFadeIn").get_value_or (0))
105 , _fade_out (node->optional_number_child<Frame>("SubtitleFadeOut").get_value_or (0))
106 , _outline_width (node->optional_number_child<int>("OutlineWidth").get_value_or (2))
109 _use = node->bool_child ("UseSubtitles");
110 _burn = node->bool_child ("BurnSubtitles");
114 _x_offset = node->number_child<double> ("SubtitleXOffset");
115 _y_offset = node->number_child<double> ("SubtitleYOffset");
117 _y_offset = node->number_child<double> ("SubtitleOffset");
120 if (node->optional_bool_child("Outline").get_value_or(false)) {
121 _effect = dcp::BORDER;
122 } else if (node->optional_bool_child("Shadow").get_value_or(false)) {
123 _effect = dcp::SHADOW;
128 optional<string> effect = node->optional_string_child("Effect");
130 if (*effect == "none") {
132 } else if (*effect == "outline") {
133 _effect = dcp::BORDER;
134 } else if (*effect == "shadow") {
135 _effect = dcp::SHADOW;
140 _x_scale = node->number_child<double> ("SubtitleXScale");
141 _y_scale = node->number_child<double> ("SubtitleYScale");
143 _x_scale = _y_scale = node->number_child<double> ("SubtitleScale");
146 optional<int> r = node->optional_number_child<int>("Red");
147 optional<int> g = node->optional_number_child<int>("Green");
148 optional<int> b = node->optional_number_child<int>("Blue");
150 _colour = dcp::Colour (*r, *g, *b);
154 optional<int> er = node->optional_number_child<int>("EffectRed");
155 optional<int> eg = node->optional_number_child<int>("EffectGreen");
156 optional<int> eb = node->optional_number_child<int>("EffectBlue");
157 if (er && eg && eb) {
158 _effect_colour = dcp::Colour (*er, *eg, *eb);
161 _effect_colour = dcp::Colour (
162 node->optional_number_child<int>("OutlineRed").get_value_or(255),
163 node->optional_number_child<int>("OutlineGreen").get_value_or(255),
164 node->optional_number_child<int>("OutlineBlue").get_value_or(255)
168 _language = node->optional_string_child ("SubtitleLanguage").get_value_or ("");
170 list<cxml::NodePtr> fonts = node->node_children ("Font");
171 for (list<cxml::NodePtr>::const_iterator i = fonts.begin(); i != fonts.end(); ++i) {
172 _fonts.push_back (shared_ptr<Font> (new Font (*i)));
178 SubtitleContent::SubtitleContent (Content* parent, vector<shared_ptr<Content> > c)
179 : ContentPart (parent)
181 shared_ptr<SubtitleContent> ref = c[0]->subtitle;
182 DCPOMATIC_ASSERT (ref);
183 list<shared_ptr<Font> > ref_fonts = ref->fonts ();
185 for (size_t i = 1; i < c.size(); ++i) {
187 if (c[i]->subtitle->use() != ref->use()) {
188 throw JoinError (_("Content to be joined must have the same 'use subtitles' setting."));
191 if (c[i]->subtitle->burn() != ref->burn()) {
192 throw JoinError (_("Content to be joined must have the same 'burn subtitles' setting."));
195 if (c[i]->subtitle->x_offset() != ref->x_offset()) {
196 throw JoinError (_("Content to be joined must have the same subtitle X offset."));
199 if (c[i]->subtitle->y_offset() != ref->y_offset()) {
200 throw JoinError (_("Content to be joined must have the same subtitle Y offset."));
203 if (c[i]->subtitle->x_scale() != ref->x_scale()) {
204 throw JoinError (_("Content to be joined must have the same subtitle X scale."));
207 if (c[i]->subtitle->y_scale() != ref->y_scale()) {
208 throw JoinError (_("Content to be joined must have the same subtitle Y scale."));
211 if (c[i]->subtitle->line_spacing() != ref->line_spacing()) {
212 throw JoinError (_("Content to be joined must have the same subtitle line spacing."));
215 if ((c[i]->subtitle->fade_in() != ref->fade_in()) || (c[i]->subtitle->fade_out() != ref->fade_out())) {
216 throw JoinError (_("Content to be joined must have the same subtitle fades."));
219 if ((c[i]->subtitle->outline_width() != ref->outline_width())) {
220 throw JoinError (_("Content to be joined must have the same outline width."));
223 list<shared_ptr<Font> > fonts = c[i]->subtitle->fonts ();
224 if (fonts.size() != ref_fonts.size()) {
225 throw JoinError (_("Content to be joined must use the same fonts."));
228 list<shared_ptr<Font> >::const_iterator j = ref_fonts.begin ();
229 list<shared_ptr<Font> >::const_iterator k = fonts.begin ();
231 while (j != ref_fonts.end ()) {
233 throw JoinError (_("Content to be joined must use the same fonts."));
241 _burn = ref->burn ();
242 _x_offset = ref->x_offset ();
243 _y_offset = ref->y_offset ();
244 _x_scale = ref->x_scale ();
245 _y_scale = ref->y_scale ();
246 _language = ref->language ();
248 _line_spacing = ref->line_spacing ();
249 _fade_in = ref->fade_in ();
250 _fade_out = ref->fade_out ();
251 _outline_width = ref->outline_width ();
256 /** _mutex must not be held on entry */
258 SubtitleContent::as_xml (xmlpp::Node* root) const
260 boost::mutex::scoped_lock lm (_mutex);
262 root->add_child("UseSubtitles")->add_child_text (_use ? "1" : "0");
263 root->add_child("BurnSubtitles")->add_child_text (_burn ? "1" : "0");
264 root->add_child("SubtitleXOffset")->add_child_text (raw_convert<string> (_x_offset));
265 root->add_child("SubtitleYOffset")->add_child_text (raw_convert<string> (_y_offset));
266 root->add_child("SubtitleXScale")->add_child_text (raw_convert<string> (_x_scale));
267 root->add_child("SubtitleYScale")->add_child_text (raw_convert<string> (_y_scale));
268 root->add_child("SubtitleLanguage")->add_child_text (_language);
270 root->add_child("Red")->add_child_text (raw_convert<string> (_colour->r));
271 root->add_child("Green")->add_child_text (raw_convert<string> (_colour->g));
272 root->add_child("Blue")->add_child_text (raw_convert<string> (_colour->b));
276 root->add_child("none");
279 root->add_child("outline");
282 root->add_child("shadow");
285 if (_effect_colour) {
286 root->add_child("EffectRed")->add_child_text (raw_convert<string> (_effect_colour->r));
287 root->add_child("EffectGreen")->add_child_text (raw_convert<string> (_effect_colour->g));
288 root->add_child("EffectBlue")->add_child_text (raw_convert<string> (_effect_colour->b));
290 root->add_child("LineSpacing")->add_child_text (raw_convert<string> (_line_spacing));
291 root->add_child("SubtitleFadeIn")->add_child_text (raw_convert<string> (_fade_in.get()));
292 root->add_child("SubtitleFadeOut")->add_child_text (raw_convert<string> (_fade_out.get()));
293 root->add_child("OutlineWidth")->add_child_text (raw_convert<string> (_outline_width));
295 for (list<shared_ptr<Font> >::const_iterator i = _fonts.begin(); i != _fonts.end(); ++i) {
296 (*i)->as_xml (root->add_child("Font"));
301 SubtitleContent::identifier () const
303 string s = raw_convert<string> (x_scale())
304 + "_" + raw_convert<string> (y_scale())
305 + "_" + raw_convert<string> (x_offset())
306 + "_" + raw_convert<string> (y_offset())
307 + "_" + raw_convert<string> (line_spacing())
308 + "_" + raw_convert<string> (fade_in().get())
309 + "_" + raw_convert<string> (fade_out().get())
310 + "_" + raw_convert<string> (outline_width());
312 /* XXX: I suppose really _fonts shouldn't be in here, since not all
313 types of subtitle content involve fonts.
315 BOOST_FOREACH (shared_ptr<Font> f, _fonts) {
316 for (int i = 0; i < FontFiles::VARIANTS; ++i) {
317 s += "_" + f->file(static_cast<FontFiles::Variant>(i)).get_value_or("Default").string();
321 /* The language is for metadata only, and doesn't affect
322 how this content looks.
329 SubtitleContent::add_font (shared_ptr<Font> font)
331 _fonts.push_back (font);
336 SubtitleContent::connect_to_fonts ()
338 BOOST_FOREACH (boost::signals2::connection& i, _font_connections) {
342 _font_connections.clear ();
344 BOOST_FOREACH (shared_ptr<Font> i, _fonts) {
345 _font_connections.push_back (i->Changed.connect (boost::bind (&SubtitleContent::font_changed, this)));
350 SubtitleContent::font_changed ()
352 _parent->signal_changed (SubtitleContentProperty::FONTS);
356 SubtitleContent::set_colour (dcp::Colour colour)
358 maybe_set (_colour, colour, SubtitleContentProperty::COLOUR);
362 SubtitleContent::unset_colour ()
364 maybe_set (_colour, optional<dcp::Colour>(), SubtitleContentProperty::COLOUR);
368 SubtitleContent::set_effect (dcp::Effect e)
370 maybe_set (_effect, e, SubtitleContentProperty::EFFECT);
374 SubtitleContent::set_effect_colour (dcp::Colour colour)
376 maybe_set (_effect_colour, colour, SubtitleContentProperty::EFFECT_COLOUR);
380 SubtitleContent::unset_effect_colour ()
382 maybe_set (_effect_colour, optional<dcp::Colour>(), SubtitleContentProperty::EFFECT_COLOUR);
386 SubtitleContent::set_use (bool u)
388 maybe_set (_use, u, SubtitleContentProperty::USE);
392 SubtitleContent::set_burn (bool b)
394 maybe_set (_burn, b, SubtitleContentProperty::BURN);
398 SubtitleContent::set_x_offset (double o)
400 maybe_set (_x_offset, o, SubtitleContentProperty::X_OFFSET);
404 SubtitleContent::set_y_offset (double o)
406 maybe_set (_y_offset, o, SubtitleContentProperty::Y_OFFSET);
410 SubtitleContent::set_x_scale (double s)
412 maybe_set (_x_scale, s, SubtitleContentProperty::X_SCALE);
416 SubtitleContent::set_y_scale (double s)
418 maybe_set (_y_scale, s, SubtitleContentProperty::Y_SCALE);
422 SubtitleContent::set_language (string language)
424 maybe_set (_language, language, SubtitleContentProperty::LANGUAGE);
428 SubtitleContent::set_line_spacing (double s)
430 maybe_set (_line_spacing, s, SubtitleContentProperty::LINE_SPACING);
434 SubtitleContent::set_fade_in (ContentTime t)
436 maybe_set (_fade_in, t, SubtitleContentProperty::FADE_IN);
440 SubtitleContent::set_fade_out (ContentTime t)
442 maybe_set (_fade_out, t, SubtitleContentProperty::FADE_OUT);
446 SubtitleContent::set_outline_width (int w)
448 maybe_set (_outline_width, w, SubtitleContentProperty::OUTLINE_WIDTH);
452 SubtitleContent::take_settings_from (shared_ptr<const SubtitleContent> c)
456 set_x_offset (c->_x_offset);
457 set_y_offset (c->_y_offset);
458 set_x_scale (c->_x_scale);
459 set_y_scale (c->_y_scale);
460 maybe_set (_fonts, c->_fonts, SubtitleContentProperty::FONTS);
462 set_colour (*c->_colour);
466 set_effect (c->_effect);
467 if (c->_effect_colour) {
468 set_effect_colour (*c->_effect_colour);
470 unset_effect_colour ();
472 set_line_spacing (c->_line_spacing);
473 set_fade_in (c->_fade_in);
474 set_fade_out (c->_fade_out);
475 set_outline_width (c->_outline_width);