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 "text_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 TextContentProperty::X_OFFSET = 500;
44 int const TextContentProperty::Y_OFFSET = 501;
45 int const TextContentProperty::X_SCALE = 502;
46 int const TextContentProperty::Y_SCALE = 503;
47 int const TextContentProperty::USE = 504;
48 int const TextContentProperty::BURN = 505;
49 int const TextContentProperty::LANGUAGE = 506;
50 int const TextContentProperty::FONTS = 507;
51 int const TextContentProperty::COLOUR = 508;
52 int const TextContentProperty::EFFECT = 509;
53 int const TextContentProperty::EFFECT_COLOUR = 510;
54 int const TextContentProperty::LINE_SPACING = 511;
55 int const TextContentProperty::FADE_IN = 512;
56 int const TextContentProperty::FADE_OUT = 513;
57 int const TextContentProperty::OUTLINE_WIDTH = 514;
58 int const TextContentProperty::TYPE = 515;
60 TextContent::TextContent (Content* parent, TextType type, TextType original_type)
61 : ContentPart (parent)
71 , _original_type (original_type)
76 /** @return TextContents from node or <Text> nodes under node (according to version).
77 * The list could be empty if no TextContents are found.
79 list<shared_ptr<TextContent> >
80 TextContent::from_xml (Content* parent, cxml::ConstNodePtr node, int version)
83 /* With old metadata FFmpeg content has the subtitle-related tags even with no
84 subtitle streams, so check for that.
86 if (node->string_child("Type") == "FFmpeg" && node->node_children("SubtitleStream").empty()) {
87 return list<shared_ptr<TextContent> >();
90 /* Otherwise we can drop through to the newer logic */
94 if (!node->optional_number_child<double>("SubtitleXOffset") && !node->optional_number_child<double>("SubtitleOffset")) {
95 return list<shared_ptr<TextContent> >();
97 list<shared_ptr<TextContent> > c;
98 c.push_back (shared_ptr<TextContent> (new TextContent (parent, node, version)));
102 if (!node->optional_node_child("Text")) {
103 return list<shared_ptr<TextContent> >();
106 list<shared_ptr<TextContent> > c;
107 BOOST_FOREACH (cxml::ConstNodePtr i, node->node_children("Text")) {
108 c.push_back (shared_ptr<TextContent> (new TextContent (parent, i, version)));
113 TextContent::TextContent (Content* parent, cxml::ConstNodePtr node, int version)
114 : ContentPart (parent)
121 , _line_spacing (node->optional_number_child<double>("LineSpacing").get_value_or (1))
122 , _outline_width (node->optional_number_child<int>("OutlineWidth").get_value_or (2))
123 , _type (TEXT_OPEN_SUBTITLE)
124 , _original_type (TEXT_OPEN_SUBTITLE)
127 _use = node->bool_child ("Use");
128 _burn = node->bool_child ("Burn");
129 } else if (version >= 32) {
130 _use = node->bool_child ("UseSubtitles");
131 _burn = node->bool_child ("BurnSubtitles");
135 _x_offset = node->number_child<double> ("XOffset");
136 _y_offset = node->number_child<double> ("YOffset");
137 } else if (version >= 7) {
138 _x_offset = node->number_child<double> ("SubtitleXOffset");
139 _y_offset = node->number_child<double> ("SubtitleYOffset");
141 _y_offset = node->number_child<double> ("SubtitleOffset");
144 if (node->optional_bool_child("Outline").get_value_or(false)) {
145 _effect = dcp::BORDER;
146 } else if (node->optional_bool_child("Shadow").get_value_or(false)) {
147 _effect = dcp::SHADOW;
152 optional<string> effect = node->optional_string_child("Effect");
154 if (*effect == "none") {
156 } else if (*effect == "outline") {
157 _effect = dcp::BORDER;
158 } else if (*effect == "shadow") {
159 _effect = dcp::SHADOW;
164 _x_scale = node->number_child<double> ("XScale");
165 _y_scale = node->number_child<double> ("YScale");
166 } else if (version >= 10) {
167 _x_scale = node->number_child<double> ("SubtitleXScale");
168 _y_scale = node->number_child<double> ("SubtitleYScale");
170 _x_scale = _y_scale = node->number_child<double> ("SubtitleScale");
173 optional<int> r = node->optional_number_child<int>("Red");
174 optional<int> g = node->optional_number_child<int>("Green");
175 optional<int> b = node->optional_number_child<int>("Blue");
177 _colour = dcp::Colour (*r, *g, *b);
181 optional<int> er = node->optional_number_child<int>("EffectRed");
182 optional<int> eg = node->optional_number_child<int>("EffectGreen");
183 optional<int> eb = node->optional_number_child<int>("EffectBlue");
184 if (er && eg && eb) {
185 _effect_colour = dcp::Colour (*er, *eg, *eb);
188 _effect_colour = dcp::Colour (
189 node->optional_number_child<int>("OutlineRed").get_value_or(255),
190 node->optional_number_child<int>("OutlineGreen").get_value_or(255),
191 node->optional_number_child<int>("OutlineBlue").get_value_or(255)
197 fi = node->optional_number_child<Frame>("FadeIn");
199 fi = node->optional_number_child<Frame>("SubtitleFadeIn");
202 _fade_in = ContentTime (*fi);
207 fo = node->optional_number_child<Frame>("FadeOut");
209 fo = node->optional_number_child<Frame>("SubtitleFadeOut");
212 _fade_out = ContentTime (*fo);
216 _language = node->optional_string_child ("Language").get_value_or ("");
218 _language = node->optional_string_child ("SubtitleLanguage").get_value_or ("");
221 list<cxml::NodePtr> fonts = node->node_children ("Font");
222 for (list<cxml::NodePtr>::const_iterator i = fonts.begin(); i != fonts.end(); ++i) {
223 _fonts.push_back (shared_ptr<Font> (new Font (*i)));
229 _type = string_to_text_type (node->optional_string_child("Type").get_value_or("open"));
230 if (node->optional_string_child("OriginalType")) {
231 _original_type = string_to_text_type (node->optional_string_child("OriginalType").get());
236 TextContent::TextContent (Content* parent, vector<shared_ptr<Content> > c)
237 : ContentPart (parent)
239 /* This constructor is for join which is only supported for content types
240 that have a single text, so we can use only_text() here.
242 shared_ptr<TextContent> ref = c[0]->only_text();
243 DCPOMATIC_ASSERT (ref);
244 list<shared_ptr<Font> > ref_fonts = ref->fonts ();
246 for (size_t i = 1; i < c.size(); ++i) {
248 if (c[i]->only_text()->use() != ref->use()) {
249 throw JoinError (_("Content to be joined must have the same 'use subtitles' setting."));
252 if (c[i]->only_text()->burn() != ref->burn()) {
253 throw JoinError (_("Content to be joined must have the same 'burn subtitles' setting."));
256 if (c[i]->only_text()->x_offset() != ref->x_offset()) {
257 throw JoinError (_("Content to be joined must have the same subtitle X offset."));
260 if (c[i]->only_text()->y_offset() != ref->y_offset()) {
261 throw JoinError (_("Content to be joined must have the same subtitle Y offset."));
264 if (c[i]->only_text()->x_scale() != ref->x_scale()) {
265 throw JoinError (_("Content to be joined must have the same subtitle X scale."));
268 if (c[i]->only_text()->y_scale() != ref->y_scale()) {
269 throw JoinError (_("Content to be joined must have the same subtitle Y scale."));
272 if (c[i]->only_text()->line_spacing() != ref->line_spacing()) {
273 throw JoinError (_("Content to be joined must have the same subtitle line spacing."));
276 if ((c[i]->only_text()->fade_in() != ref->fade_in()) || (c[i]->only_text()->fade_out() != ref->fade_out())) {
277 throw JoinError (_("Content to be joined must have the same subtitle fades."));
280 if ((c[i]->only_text()->outline_width() != ref->outline_width())) {
281 throw JoinError (_("Content to be joined must have the same outline width."));
284 list<shared_ptr<Font> > fonts = c[i]->only_text()->fonts ();
285 if (fonts.size() != ref_fonts.size()) {
286 throw JoinError (_("Content to be joined must use the same fonts."));
289 list<shared_ptr<Font> >::const_iterator j = ref_fonts.begin ();
290 list<shared_ptr<Font> >::const_iterator k = fonts.begin ();
292 while (j != ref_fonts.end ()) {
294 throw JoinError (_("Content to be joined must use the same fonts."));
302 _burn = ref->burn ();
303 _x_offset = ref->x_offset ();
304 _y_offset = ref->y_offset ();
305 _x_scale = ref->x_scale ();
306 _y_scale = ref->y_scale ();
307 _language = ref->language ();
309 _line_spacing = ref->line_spacing ();
310 _fade_in = ref->fade_in ();
311 _fade_out = ref->fade_out ();
312 _outline_width = ref->outline_width ();
313 _type = ref->type ();
314 _original_type = ref->original_type ();
319 /** _mutex must not be held on entry */
321 TextContent::as_xml (xmlpp::Node* root) const
323 boost::mutex::scoped_lock lm (_mutex);
325 xmlpp::Element* text = root->add_child ("Text");
327 text->add_child("Use")->add_child_text (_use ? "1" : "0");
328 text->add_child("Burn")->add_child_text (_burn ? "1" : "0");
329 text->add_child("XOffset")->add_child_text (raw_convert<string> (_x_offset));
330 text->add_child("YOffset")->add_child_text (raw_convert<string> (_y_offset));
331 text->add_child("XScale")->add_child_text (raw_convert<string> (_x_scale));
332 text->add_child("YScale")->add_child_text (raw_convert<string> (_y_scale));
333 text->add_child("Language")->add_child_text (_language);
335 text->add_child("Red")->add_child_text (raw_convert<string> (_colour->r));
336 text->add_child("Green")->add_child_text (raw_convert<string> (_colour->g));
337 text->add_child("Blue")->add_child_text (raw_convert<string> (_colour->b));
342 text->add_child("Effect")->add_child_text("none");
345 text->add_child("Effect")->add_child_text("outline");
348 text->add_child("Effect")->add_child_text("shadow");
352 if (_effect_colour) {
353 text->add_child("EffectRed")->add_child_text (raw_convert<string> (_effect_colour->r));
354 text->add_child("EffectGreen")->add_child_text (raw_convert<string> (_effect_colour->g));
355 text->add_child("EffectBlue")->add_child_text (raw_convert<string> (_effect_colour->b));
357 text->add_child("LineSpacing")->add_child_text (raw_convert<string> (_line_spacing));
359 text->add_child("FadeIn")->add_child_text (raw_convert<string> (_fade_in->get()));
362 text->add_child("FadeOut")->add_child_text (raw_convert<string> (_fade_out->get()));
364 text->add_child("OutlineWidth")->add_child_text (raw_convert<string> (_outline_width));
366 for (list<shared_ptr<Font> >::const_iterator i = _fonts.begin(); i != _fonts.end(); ++i) {
367 (*i)->as_xml (text->add_child("Font"));
370 text->add_child("Type")->add_child_text (text_type_to_string(_type));
371 text->add_child("OriginalType")->add_child_text (text_type_to_string(_original_type));
375 TextContent::identifier () const
377 string s = raw_convert<string> (x_scale())
378 + "_" + raw_convert<string> (y_scale())
379 + "_" + raw_convert<string> (x_offset())
380 + "_" + raw_convert<string> (y_offset())
381 + "_" + raw_convert<string> (line_spacing())
382 + "_" + raw_convert<string> (fade_in().get_value_or(ContentTime()).get())
383 + "_" + raw_convert<string> (fade_out().get_value_or(ContentTime()).get())
384 + "_" + raw_convert<string> (outline_width())
385 + "_" + raw_convert<string> (colour().get_value_or(dcp::Colour(255, 255, 255)).to_argb_string())
386 + "_" + raw_convert<string> (dcp::effect_to_string(effect().get_value_or(dcp::NONE)))
387 + "_" + raw_convert<string> (effect_colour().get_value_or(dcp::Colour(0, 0, 0)).to_argb_string());
389 /* XXX: I suppose really _fonts shouldn't be in here, since not all
390 types of subtitle content involve fonts.
392 BOOST_FOREACH (shared_ptr<Font> f, _fonts) {
393 for (int i = 0; i < FontFiles::VARIANTS; ++i) {
394 s += "_" + f->file(static_cast<FontFiles::Variant>(i)).get_value_or("Default").string();
398 /* The language is for metadata only, and doesn't affect
399 how this content looks.
406 TextContent::add_font (shared_ptr<Font> font)
408 _fonts.push_back (font);
413 TextContent::connect_to_fonts ()
415 BOOST_FOREACH (boost::signals2::connection& i, _font_connections) {
419 _font_connections.clear ();
421 BOOST_FOREACH (shared_ptr<Font> i, _fonts) {
422 _font_connections.push_back (i->Changed.connect (boost::bind (&TextContent::font_changed, this)));
427 TextContent::font_changed ()
430 ContentChange cc (_parent, TextContentProperty::FONTS);
434 TextContent::set_colour (dcp::Colour colour)
436 maybe_set (_colour, colour, TextContentProperty::COLOUR);
440 TextContent::unset_colour ()
442 maybe_set (_colour, optional<dcp::Colour>(), TextContentProperty::COLOUR);
446 TextContent::set_effect (dcp::Effect e)
448 maybe_set (_effect, e, TextContentProperty::EFFECT);
452 TextContent::unset_effect ()
454 maybe_set (_effect, optional<dcp::Effect>(), TextContentProperty::EFFECT);
458 TextContent::set_effect_colour (dcp::Colour colour)
460 maybe_set (_effect_colour, colour, TextContentProperty::EFFECT_COLOUR);
464 TextContent::unset_effect_colour ()
466 maybe_set (_effect_colour, optional<dcp::Colour>(), TextContentProperty::EFFECT_COLOUR);
470 TextContent::set_use (bool u)
472 maybe_set (_use, u, TextContentProperty::USE);
476 TextContent::set_burn (bool b)
478 maybe_set (_burn, b, TextContentProperty::BURN);
482 TextContent::set_x_offset (double o)
484 maybe_set (_x_offset, o, TextContentProperty::X_OFFSET);
488 TextContent::set_y_offset (double o)
490 maybe_set (_y_offset, o, TextContentProperty::Y_OFFSET);
494 TextContent::set_x_scale (double s)
496 maybe_set (_x_scale, s, TextContentProperty::X_SCALE);
500 TextContent::set_y_scale (double s)
502 maybe_set (_y_scale, s, TextContentProperty::Y_SCALE);
506 TextContent::set_language (string language)
508 maybe_set (_language, language, TextContentProperty::LANGUAGE);
512 TextContent::set_line_spacing (double s)
514 maybe_set (_line_spacing, s, TextContentProperty::LINE_SPACING);
518 TextContent::set_fade_in (ContentTime t)
520 maybe_set (_fade_in, t, TextContentProperty::FADE_IN);
524 TextContent::unset_fade_in ()
526 maybe_set (_fade_in, optional<ContentTime>(), TextContentProperty::FADE_IN);
530 TextContent::set_fade_out (ContentTime t)
532 maybe_set (_fade_out, t, TextContentProperty::FADE_OUT);
536 TextContent::unset_fade_out ()
538 maybe_set (_fade_out, optional<ContentTime>(), TextContentProperty::FADE_OUT);
542 TextContent::set_type (TextType type)
544 maybe_set (_type, type, TextContentProperty::TYPE);
548 TextContent::set_outline_width (int w)
550 maybe_set (_outline_width, w, TextContentProperty::OUTLINE_WIDTH);
554 TextContent::take_settings_from (shared_ptr<const TextContent> c)
558 set_x_offset (c->_x_offset);
559 set_y_offset (c->_y_offset);
560 set_x_scale (c->_x_scale);
561 set_y_scale (c->_y_scale);
562 maybe_set (_fonts, c->_fonts, TextContentProperty::FONTS);
564 set_colour (*c->_colour);
569 set_effect (*c->_effect);
571 if (c->_effect_colour) {
572 set_effect_colour (*c->_effect_colour);
574 unset_effect_colour ();
576 set_line_spacing (c->_line_spacing);
578 set_fade_in (*c->_fade_in);
581 set_fade_out (*c->_fade_out);
583 set_outline_width (c->_outline_width);