Clean up after previous commit.

1 files changed, 528 insertions, 0 deletions

diff --git a/src/lib/caption_content.cc b/src/lib/caption_content.cc
new file mode 100644
index 000000000..33e21bc4a
--- /dev/null
+++ b/src/lib/caption_content.cc
@@ -0,0 +1,528 @@
+/*
+    Copyright (C) 2013-2018 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "caption_content.h"
+#include "util.h"
+#include "exceptions.h"
+#include "font.h"
+#include "content.h"
+#include <dcp/raw_convert.h>
+#include <libcxml/cxml.h>
+#include <libxml++/libxml++.h>
+#include <boost/foreach.hpp>
+#include <iostream>
+
+#include "i18n.h"
+
+using std::string;
+using std::vector;
+using std::cout;
+using std::list;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::optional;
+using dcp::raw_convert;
+
+int const CaptionContentProperty::X_OFFSET = 500;
+int const CaptionContentProperty::Y_OFFSET = 501;
+int const CaptionContentProperty::X_SCALE = 502;
+int const CaptionContentProperty::Y_SCALE = 503;
+int const CaptionContentProperty::USE = 504;
+int const CaptionContentProperty::BURN = 505;
+int const CaptionContentProperty::LANGUAGE = 506;
+int const CaptionContentProperty::FONTS = 507;
+int const CaptionContentProperty::COLOUR = 508;
+int const CaptionContentProperty::EFFECT = 509;
+int const CaptionContentProperty::EFFECT_COLOUR = 510;
+int const CaptionContentProperty::LINE_SPACING = 511;
+int const CaptionContentProperty::FADE_IN = 512;
+int const CaptionContentProperty::FADE_OUT = 513;
+int const CaptionContentProperty::OUTLINE_WIDTH = 514;
+int const CaptionContentProperty::TYPE = 515;
+
+CaptionContent::CaptionContent (Content* parent)
+	: ContentPart (parent)
+	, _use (false)
+	, _burn (false)
+	, _x_offset (0)
+	, _y_offset (0)
+	, _x_scale (1)
+	, _y_scale (1)
+	, _line_spacing (1)
+	, _outline_width (2)
+	, _type (CAPTION_OPEN)
+{
+
+}
+
+shared_ptr<CaptionContent>
+CaptionContent::from_xml (Content* parent, cxml::ConstNodePtr node, int version)
+{
+	if (version < 34) {
+		/* With old metadata FFmpeg content has the subtitle-related tags even with no
+		   subtitle streams, so check for that.
+		*/
+		if (node->string_child("Type") == "FFmpeg" && node->node_children("SubtitleStream").empty()) {
+			return shared_ptr<CaptionContent> ();
+		}
+
+		/* Otherwise we can drop through to the newer logic */
+	}
+
+	if (!node->optional_number_child<double>("SubtitleXOffset") && !node->optional_number_child<double>("SubtitleOffset")) {
+		return shared_ptr<CaptionContent> ();
+	}
+
+	return shared_ptr<CaptionContent> (new CaptionContent (parent, node, version));
+}
+
+CaptionContent::CaptionContent (Content* parent, cxml::ConstNodePtr node, int version)
+	: ContentPart (parent)
+	, _use (false)
+	, _burn (false)
+	, _x_offset (0)
+	, _y_offset (0)
+	, _x_scale (1)
+	, _y_scale (1)
+	, _line_spacing (node->optional_number_child<double>("LineSpacing").get_value_or (1))
+	, _outline_width (node->optional_number_child<int>("OutlineWidth").get_value_or (2))
+	, _type (CAPTION_OPEN)
+{
+	if (version >= 32) {
+		_use = node->bool_child ("UseSubtitles");
+		_burn = node->bool_child ("BurnSubtitles");
+	}
+
+	if (version >= 7) {
+		_x_offset = node->number_child<double> ("SubtitleXOffset");
+		_y_offset = node->number_child<double> ("SubtitleYOffset");
+	} else {
+		_y_offset = node->number_child<double> ("SubtitleOffset");
+	}
+
+	if (node->optional_bool_child("Outline").get_value_or(false)) {
+		_effect = dcp::BORDER;
+	} else if (node->optional_bool_child("Shadow").get_value_or(false)) {
+		_effect = dcp::SHADOW;
+	} else {
+		_effect = dcp::NONE;
+	}
+
+	optional<string> effect = node->optional_string_child("Effect");
+	if (effect) {
+		if (*effect == "none") {
+			_effect = dcp::NONE;
+		} else if (*effect == "outline") {
+			_effect = dcp::BORDER;
+		} else if (*effect == "shadow") {
+			_effect = dcp::SHADOW;
+		}
+	}
+
+	if (version >= 10) {
+		_x_scale = node->number_child<double> ("SubtitleXScale");
+		_y_scale = node->number_child<double> ("SubtitleYScale");
+	} else {
+		_x_scale = _y_scale = node->number_child<double> ("SubtitleScale");
+	}
+
+	optional<int> r = node->optional_number_child<int>("Red");
+	optional<int> g = node->optional_number_child<int>("Green");
+	optional<int> b = node->optional_number_child<int>("Blue");
+	if (r && g && b) {
+		_colour = dcp::Colour (*r, *g, *b);
+	}
+
+	if (version >= 36) {
+		optional<int> er = node->optional_number_child<int>("EffectRed");
+		optional<int> eg = node->optional_number_child<int>("EffectGreen");
+		optional<int> eb = node->optional_number_child<int>("EffectBlue");
+		if (er && eg && eb) {
+			_effect_colour = dcp::Colour (*er, *eg, *eb);
+		}
+	} else {
+		_effect_colour = dcp::Colour (
+			node->optional_number_child<int>("OutlineRed").get_value_or(255),
+			node->optional_number_child<int>("OutlineGreen").get_value_or(255),
+			node->optional_number_child<int>("OutlineBlue").get_value_or(255)
+			);
+	}
+
+	optional<Frame> fi = node->optional_number_child<Frame>("SubtitleFadeIn");
+	if (fi) {
+		_fade_in = ContentTime (*fi);
+	}
+	optional<Frame> fo = node->optional_number_child<Frame>("SubtitleFadeOut");
+	if (fo) {
+		_fade_out = ContentTime (*fo);
+	}
+
+	_language = node->optional_string_child ("SubtitleLanguage").get_value_or ("");
+
+	list<cxml::NodePtr> fonts = node->node_children ("Font");
+	for (list<cxml::NodePtr>::const_iterator i = fonts.begin(); i != fonts.end(); ++i) {
+		_fonts.push_back (shared_ptr<Font> (new Font (*i)));
+	}
+
+	connect_to_fonts ();
+
+	_type = string_to_caption_type (node->optional_string_child("CaptionType").get_value_or("open"));
+}
+
+CaptionContent::CaptionContent (Content* parent, vector<shared_ptr<Content> > c)
+	: ContentPart (parent)
+{
+	shared_ptr<CaptionContent> ref = c[0]->caption;
+	DCPOMATIC_ASSERT (ref);
+	list<shared_ptr<Font> > ref_fonts = ref->fonts ();
+
+	for (size_t i = 1; i < c.size(); ++i) {
+
+		if (c[i]->caption->use() != ref->use()) {
+			throw JoinError (_("Content to be joined must have the same 'use subtitles' setting."));
+		}
+
+		if (c[i]->caption->burn() != ref->burn()) {
+			throw JoinError (_("Content to be joined must have the same 'burn subtitles' setting."));
+		}
+
+		if (c[i]->caption->x_offset() != ref->x_offset()) {
+			throw JoinError (_("Content to be joined must have the same subtitle X offset."));
+		}
+
+		if (c[i]->caption->y_offset() != ref->y_offset()) {
+			throw JoinError (_("Content to be joined must have the same subtitle Y offset."));
+		}
+
+		if (c[i]->caption->x_scale() != ref->x_scale()) {
+			throw JoinError (_("Content to be joined must have the same subtitle X scale."));
+		}
+
+		if (c[i]->caption->y_scale() != ref->y_scale()) {
+			throw JoinError (_("Content to be joined must have the same subtitle Y scale."));
+		}
+
+		if (c[i]->caption->line_spacing() != ref->line_spacing()) {
+			throw JoinError (_("Content to be joined must have the same subtitle line spacing."));
+		}
+
+		if ((c[i]->caption->fade_in() != ref->fade_in()) || (c[i]->caption->fade_out() != ref->fade_out())) {
+			throw JoinError (_("Content to be joined must have the same subtitle fades."));
+		}
+
+		if ((c[i]->caption->outline_width() != ref->outline_width())) {
+			throw JoinError (_("Content to be joined must have the same outline width."));
+		}
+
+		list<shared_ptr<Font> > fonts = c[i]->caption->fonts ();
+		if (fonts.size() != ref_fonts.size()) {
+			throw JoinError (_("Content to be joined must use the same fonts."));
+		}
+
+		list<shared_ptr<Font> >::const_iterator j = ref_fonts.begin ();
+		list<shared_ptr<Font> >::const_iterator k = fonts.begin ();
+
+		while (j != ref_fonts.end ()) {
+			if (**j != **k) {
+				throw JoinError (_("Content to be joined must use the same fonts."));
+			}
+			++j;
+			++k;
+		}
+	}
+
+	_use = ref->use ();
+	_burn = ref->burn ();
+	_x_offset = ref->x_offset ();
+	_y_offset = ref->y_offset ();
+	_x_scale = ref->x_scale ();
+	_y_scale = ref->y_scale ();
+	_language = ref->language ();
+	_fonts = ref_fonts;
+	_line_spacing = ref->line_spacing ();
+	_fade_in = ref->fade_in ();
+	_fade_out = ref->fade_out ();
+	_outline_width = ref->outline_width ();
+
+	connect_to_fonts ();
+}
+
+/** _mutex must not be held on entry */
+void
+CaptionContent::as_xml (xmlpp::Node* root) const
+{
+	boost::mutex::scoped_lock lm (_mutex);
+
+	root->add_child("UseSubtitles")->add_child_text (_use ? "1" : "0");
+	root->add_child("BurnSubtitles")->add_child_text (_burn ? "1" : "0");
+	root->add_child("SubtitleXOffset")->add_child_text (raw_convert<string> (_x_offset));
+	root->add_child("SubtitleYOffset")->add_child_text (raw_convert<string> (_y_offset));
+	root->add_child("SubtitleXScale")->add_child_text (raw_convert<string> (_x_scale));
+	root->add_child("SubtitleYScale")->add_child_text (raw_convert<string> (_y_scale));
+	root->add_child("SubtitleLanguage")->add_child_text (_language);
+	if (_colour) {
+		root->add_child("Red")->add_child_text (raw_convert<string> (_colour->r));
+		root->add_child("Green")->add_child_text (raw_convert<string> (_colour->g));
+		root->add_child("Blue")->add_child_text (raw_convert<string> (_colour->b));
+	}
+	if (_effect) {
+		switch (*_effect) {
+		case dcp::NONE:
+			root->add_child("Effect")->add_child_text("none");
+			break;
+		case dcp::BORDER:
+			root->add_child("Effect")->add_child_text("outline");
+			break;
+		case dcp::SHADOW:
+			root->add_child("Effect")->add_child_text("shadow");
+			break;
+		}
+	}
+	if (_effect_colour) {
+		root->add_child("EffectRed")->add_child_text (raw_convert<string> (_effect_colour->r));
+		root->add_child("EffectGreen")->add_child_text (raw_convert<string> (_effect_colour->g));
+		root->add_child("EffectBlue")->add_child_text (raw_convert<string> (_effect_colour->b));
+	}
+	root->add_child("LineSpacing")->add_child_text (raw_convert<string> (_line_spacing));
+	if (_fade_in) {
+		root->add_child("SubtitleFadeIn")->add_child_text (raw_convert<string> (_fade_in->get()));
+	}
+	if (_fade_out) {
+		root->add_child("SubtitleFadeOut")->add_child_text (raw_convert<string> (_fade_out->get()));
+	}
+	root->add_child("OutlineWidth")->add_child_text (raw_convert<string> (_outline_width));
+
+	for (list<shared_ptr<Font> >::const_iterator i = _fonts.begin(); i != _fonts.end(); ++i) {
+		(*i)->as_xml (root->add_child("Font"));
+	}
+
+	root->add_child("CaptionType")->add_child_text (caption_type_to_string(_type));
+}
+
+string
+CaptionContent::identifier () const
+{
+	string s = raw_convert<string> (x_scale())
+		+ "_" + raw_convert<string> (y_scale())
+		+ "_" + raw_convert<string> (x_offset())
+		+ "_" + raw_convert<string> (y_offset())
+		+ "_" + raw_convert<string> (line_spacing())
+		+ "_" + raw_convert<string> (fade_in().get_value_or(ContentTime()).get())
+		+ "_" + raw_convert<string> (fade_out().get_value_or(ContentTime()).get())
+		+ "_" + raw_convert<string> (outline_width())
+		+ "_" + raw_convert<string> (colour().get_value_or(dcp::Colour(255, 255, 255)).to_argb_string())
+		+ "_" + raw_convert<string> (dcp::effect_to_string(effect().get_value_or(dcp::NONE)))
+		+ "_" + raw_convert<string> (effect_colour().get_value_or(dcp::Colour(0, 0, 0)).to_argb_string());
+
+	/* XXX: I suppose really _fonts shouldn't be in here, since not all
+	   types of subtitle content involve fonts.
+	*/
+	BOOST_FOREACH (shared_ptr<Font> f, _fonts) {
+		for (int i = 0; i < FontFiles::VARIANTS; ++i) {
+			s += "_" + f->file(static_cast<FontFiles::Variant>(i)).get_value_or("Default").string();
+		}
+	}
+
+	/* The language is for metadata only, and doesn't affect
+	   how this content looks.
+	*/
+
+	return s;
+}
+
+void
+CaptionContent::add_font (shared_ptr<Font> font)
+{
+	_fonts.push_back (font);
+	connect_to_fonts ();
+}
+
+void
+CaptionContent::connect_to_fonts ()
+{
+	BOOST_FOREACH (boost::signals2::connection& i, _font_connections) {
+		i.disconnect ();
+	}
+
+	_font_connections.clear ();
+
+	BOOST_FOREACH (shared_ptr<Font> i, _fonts) {
+		_font_connections.push_back (i->Changed.connect (boost::bind (&CaptionContent::font_changed, this)));
+	}
+}
+
+void
+CaptionContent::font_changed ()
+{
+	_parent->signal_changed (CaptionContentProperty::FONTS);
+}
+
+void
+CaptionContent::set_colour (dcp::Colour colour)
+{
+	maybe_set (_colour, colour, CaptionContentProperty::COLOUR);
+}
+
+void
+CaptionContent::unset_colour ()
+{
+	maybe_set (_colour, optional<dcp::Colour>(), CaptionContentProperty::COLOUR);
+}
+
+void
+CaptionContent::set_effect (dcp::Effect e)
+{
+	maybe_set (_effect, e, CaptionContentProperty::EFFECT);
+}
+
+void
+CaptionContent::unset_effect ()
+{
+	maybe_set (_effect, optional<dcp::Effect>(), CaptionContentProperty::EFFECT);
+}
+
+void
+CaptionContent::set_effect_colour (dcp::Colour colour)
+{
+	maybe_set (_effect_colour, colour, CaptionContentProperty::EFFECT_COLOUR);
+}
+
+void
+CaptionContent::unset_effect_colour ()
+{
+	maybe_set (_effect_colour, optional<dcp::Colour>(), CaptionContentProperty::EFFECT_COLOUR);
+}
+
+void
+CaptionContent::set_use (bool u)
+{
+	maybe_set (_use, u, CaptionContentProperty::USE);
+}
+
+void
+CaptionContent::set_burn (bool b)
+{
+	maybe_set (_burn, b, CaptionContentProperty::BURN);
+}
+
+void
+CaptionContent::set_x_offset (double o)
+{
+	maybe_set (_x_offset, o, CaptionContentProperty::X_OFFSET);
+}
+
+void
+CaptionContent::set_y_offset (double o)
+{
+	maybe_set (_y_offset, o, CaptionContentProperty::Y_OFFSET);
+}
+
+void
+CaptionContent::set_x_scale (double s)
+{
+	maybe_set (_x_scale, s, CaptionContentProperty::X_SCALE);
+}
+
+void
+CaptionContent::set_y_scale (double s)
+{
+	maybe_set (_y_scale, s, CaptionContentProperty::Y_SCALE);
+}
+
+void
+CaptionContent::set_language (string language)
+{
+	maybe_set (_language, language, CaptionContentProperty::LANGUAGE);
+}
+
+void
+CaptionContent::set_line_spacing (double s)
+{
+	maybe_set (_line_spacing, s, CaptionContentProperty::LINE_SPACING);
+}
+
+void
+CaptionContent::set_fade_in (ContentTime t)
+{
+	maybe_set (_fade_in, t, CaptionContentProperty::FADE_IN);
+}
+
+void
+CaptionContent::unset_fade_in ()
+{
+	maybe_set (_fade_in, optional<ContentTime>(), CaptionContentProperty::FADE_IN);
+}
+
+void
+CaptionContent::set_fade_out (ContentTime t)
+{
+	maybe_set (_fade_out, t, CaptionContentProperty::FADE_OUT);
+}
+
+void
+CaptionContent::unset_fade_out ()
+{
+	maybe_set (_fade_out, optional<ContentTime>(), CaptionContentProperty::FADE_OUT);
+}
+
+void
+CaptionContent::set_type (CaptionType type)
+{
+	maybe_set (_type, type, CaptionContentProperty::TYPE);
+}
+
+void
+CaptionContent::set_outline_width (int w)
+{
+	maybe_set (_outline_width, w, CaptionContentProperty::OUTLINE_WIDTH);
+}
+
+void
+CaptionContent::take_settings_from (shared_ptr<const CaptionContent> c)
+{
+	set_use (c->_use);
+	set_burn (c->_burn);
+	set_x_offset (c->_x_offset);
+	set_y_offset (c->_y_offset);
+	set_x_scale (c->_x_scale);
+	set_y_scale (c->_y_scale);
+	maybe_set (_fonts, c->_fonts, CaptionContentProperty::FONTS);
+	if (c->_colour) {
+		set_colour (*c->_colour);
+	} else {
+		unset_colour ();
+	}
+	if (c->_effect) {
+		set_effect (*c->_effect);
+	}
+	if (c->_effect_colour) {
+		set_effect_colour (*c->_effect_colour);
+	} else {
+		unset_effect_colour ();
+	}
+	set_line_spacing (c->_line_spacing);
+	if (c->_fade_in) {
+		set_fade_in (*c->_fade_in);
+	}
+	if (c->_fade_out) {
+		set_fade_out (*c->_fade_out);
+	}
+	set_outline_width (c->_outline_width);
+}