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authorCarl Hetherington <cth@carlh.net>2014-01-26 21:35:02 +0000
committerCarl Hetherington <cth@carlh.net>2014-01-26 21:35:02 +0000
commit59886567974bd3e79d30a4a9425d86d50bf425f3 (patch)
tree68e583a64144f5cbffede882e1187ecf737b2e43 /src/subtitle_asset.cc
parent0703842433013ac1d5f79c09d7a8361dc2e565c8 (diff)
It builds again.
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-rw-r--r--src/subtitle_asset.cc416
1 files changed, 0 insertions, 416 deletions
diff --git a/src/subtitle_asset.cc b/src/subtitle_asset.cc
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-/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
-
- This program 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.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-#include <fstream>
-#include <boost/lexical_cast.hpp>
-#include <boost/algorithm/string.hpp>
-#include <libxml++/nodes/element.h>
-#include "subtitle_asset.h"
-#include "parse/subtitle.h"
-#include "util.h"
-#include "xml.h"
-
-using std::string;
-using std::list;
-using std::ostream;
-using std::ofstream;
-using std::stringstream;
-using boost::shared_ptr;
-using boost::lexical_cast;
-using boost::optional;
-using namespace dcp;
-
-SubtitleAsset::SubtitleAsset (boost::filesystem::path file)
- : Content (file)
- , _need_sort (false)
-{
- shared_ptr<cxml::Document> xml (new cxml::Document ("DCSubtitle"));
- xml->read_file (file);
-
- _id = xml->string_child ("SubtitleID");
- _movie_title = xml->string_child ("MovieTitle");
- _reel_number = xml->string_child ("ReelNumber");
- _language = xml->string_child ("Language");
-
- xml->ignore_child ("LoadFont");
-
- list<shared_ptr<dcp::parse::Font> > font_nodes = type_children<dcp::parse::Font> (xml, "Font");
- _load_font_nodes = type_children<dcp::parse::LoadFont> (xml, "LoadFont");
-
- /* Now make Subtitle objects to represent the raw XML nodes
- in a sane way.
- */
-
- ParseState parse_state;
- examine_font_nodes (xml, font_nodes, parse_state);
-}
-
-SubtitleAsset::SubtitleAsset (string directory, string movie_title, string language)
- : Content (directory)
- , _movie_title (movie_title)
- , _reel_number ("1")
- , _language (language)
- , _need_sort (false)
-{
-
-}
-
-void
-SubtitleAsset::examine_font_nodes (
- shared_ptr<const cxml::Node> xml,
- list<shared_ptr<dcp::parse::Font> > const & font_nodes,
- ParseState& parse_state
- )
-{
- for (list<shared_ptr<dcp::parse::Font> >::const_iterator i = font_nodes.begin(); i != font_nodes.end(); ++i) {
-
- parse_state.font_nodes.push_back (*i);
- maybe_add_subtitle ((*i)->text, parse_state);
-
- for (list<shared_ptr<dcp::parse::Subtitle> >::iterator j = (*i)->subtitle_nodes.begin(); j != (*i)->subtitle_nodes.end(); ++j) {
- parse_state.subtitle_nodes.push_back (*j);
- examine_text_nodes (xml, (*j)->text_nodes, parse_state);
- examine_font_nodes (xml, (*j)->font_nodes, parse_state);
- parse_state.subtitle_nodes.pop_back ();
- }
-
- examine_font_nodes (xml, (*i)->font_nodes, parse_state);
- examine_text_nodes (xml, (*i)->text_nodes, parse_state);
-
- parse_state.font_nodes.pop_back ();
- }
-}
-
-void
-SubtitleAsset::examine_text_nodes (
- shared_ptr<const cxml::Node> xml,
- list<shared_ptr<dcp::parse::Text> > const & text_nodes,
- ParseState& parse_state
- )
-{
- for (list<shared_ptr<dcp::parse::Text> >::const_iterator i = text_nodes.begin(); i != text_nodes.end(); ++i) {
- parse_state.text_nodes.push_back (*i);
- maybe_add_subtitle ((*i)->text, parse_state);
- examine_font_nodes (xml, (*i)->font_nodes, parse_state);
- parse_state.text_nodes.pop_back ();
- }
-}
-
-void
-SubtitleAsset::maybe_add_subtitle (string text, ParseState const & parse_state)
-{
- if (empty_or_white_space (text)) {
- return;
- }
-
- if (parse_state.text_nodes.empty() || parse_state.subtitle_nodes.empty ()) {
- return;
- }
-
- assert (!parse_state.text_nodes.empty ());
- assert (!parse_state.subtitle_nodes.empty ());
-
- dcp::parse::Font effective_font (parse_state.font_nodes);
- dcp::parse::Text effective_text (*parse_state.text_nodes.back ());
- dcp::parse::Subtitle effective_subtitle (*parse_state.subtitle_nodes.back ());
-
- _subtitles.push_back (
- shared_ptr<Subtitle> (
- new Subtitle (
- font_id_to_name (effective_font.id),
- effective_font.italic.get(),
- effective_font.color.get(),
- effective_font.size,
- effective_subtitle.in,
- effective_subtitle.out,
- effective_text.v_position,
- effective_text.v_align,
- text,
- effective_font.effect ? effective_font.effect.get() : NONE,
- effective_font.effect_color.get(),
- effective_subtitle.fade_up_time,
- effective_subtitle.fade_down_time
- )
- )
- );
-}
-
-list<shared_ptr<Subtitle> >
-SubtitleAsset::subtitles_at (Time t) const
-{
- list<shared_ptr<Subtitle> > s;
- for (list<shared_ptr<Subtitle> >::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- if ((*i)->in() <= t && t <= (*i)->out ()) {
- s.push_back (*i);
- }
- }
-
- return s;
-}
-
-std::string
-SubtitleAsset::font_id_to_name (string id) const
-{
- list<shared_ptr<dcp::parse::LoadFont> >::const_iterator i = _load_font_nodes.begin();
- while (i != _load_font_nodes.end() && (*i)->id != id) {
- ++i;
- }
-
- if (i == _load_font_nodes.end ()) {
- return "";
- }
-
- if ((*i)->uri == "arial.ttf") {
- return "Arial";
- }
-
- return "";
-}
-
-Subtitle::Subtitle (
- string font,
- bool italic,
- Color color,
- int size,
- Time in,
- Time out,
- float v_position,
- VAlign v_align,
- string text,
- Effect effect,
- Color effect_color,
- Time fade_up_time,
- Time fade_down_time
- )
- : _font (font)
- , _italic (italic)
- , _color (color)
- , _size (size)
- , _in (in)
- , _out (out)
- , _v_position (v_position)
- , _v_align (v_align)
- , _text (text)
- , _effect (effect)
- , _effect_color (effect_color)
- , _fade_up_time (fade_up_time)
- , _fade_down_time (fade_down_time)
-{
-
-}
-
-int
-Subtitle::size_in_pixels (int screen_height) const
-{
- /* Size in the subtitle file is given in points as if the screen
- height is 11 inches, so a 72pt font would be 1/11th of the screen
- height.
- */
-
- return _size * screen_height / (11 * 72);
-}
-
-bool
-dcp::operator== (Subtitle const & a, Subtitle const & b)
-{
- return (
- a.font() == b.font() &&
- a.italic() == b.italic() &&
- a.color() == b.color() &&
- a.size() == b.size() &&
- a.in() == b.in() &&
- a.out() == b.out() &&
- a.v_position() == b.v_position() &&
- a.v_align() == b.v_align() &&
- a.text() == b.text() &&
- a.effect() == b.effect() &&
- a.effect_color() == b.effect_color() &&
- a.fade_up_time() == b.fade_up_time() &&
- a.fade_down_time() == b.fade_down_time()
- );
-}
-
-ostream&
-dcp::operator<< (ostream& s, Subtitle const & sub)
-{
- s << "\n`" << sub.text() << "' from " << sub.in() << " to " << sub.out() << ";\n"
- << "fade up " << sub.fade_up_time() << ", fade down " << sub.fade_down_time() << ";\n"
- << "font " << sub.font() << ", ";
-
- if (sub.italic()) {
- s << "italic";
- } else {
- s << "non-italic";
- }
-
- s << ", size " << sub.size() << ", color " << sub.color() << ", vpos " << sub.v_position() << ", valign " << ((int) sub.v_align()) << ";\n"
- << "effect " << ((int) sub.effect()) << ", effect color " << sub.effect_color();
-
- return s;
-}
-
-void
-SubtitleAsset::add (shared_ptr<Subtitle> s)
-{
- _subtitles.push_back (s);
- _need_sort = true;
-}
-
-void
-SubtitleAsset::write_to_cpl (xmlpp::Element* node) const
-{
- /* XXX: should EditRate, Duration and IntrinsicDuration be in here? */
-
- xmlpp::Node* ms = node->add_child ("MainSubtitle");
- ms->add_child("Id")->add_child_text("urn:uuid:" + _id);
- ms->add_child("AnnotationText")->add_child_text (_file.string ());
- /* XXX */
- ms->add_child("EntryPoint")->add_child_text ("0");
-}
-
-struct SubtitleSorter {
- bool operator() (shared_ptr<Subtitle> a, shared_ptr<Subtitle> b) {
- if (a->in() != b->in()) {
- return a->in() < b->in();
- }
- return a->v_position() < b->v_position();
- }
-};
-
-void
-SubtitleAsset::write_xml () const
-{
- FILE* f = fopen_boost (file (), "r");
- Glib::ustring const s = xml_as_string ();
- fwrite (s.c_str(), 1, s.length(), f);
- fclose (f);
-}
-
-Glib::ustring
-SubtitleAsset::xml_as_string () const
-{
- xmlpp::Document doc;
- xmlpp::Element* root = doc.create_root_node ("DCSubtitle");
- root->set_attribute ("Version", "1.0");
-
- root->add_child("SubtitleID")->add_child_text (_id);
- root->add_child("MovieTitle")->add_child_text (_movie_title);
- root->add_child("ReelNumber")->add_child_text (lexical_cast<string> (_reel_number));
- root->add_child("Language")->add_child_text (_language);
-
- if (_load_font_nodes.size() > 1) {
- boost::throw_exception (MiscError ("multiple LoadFont nodes not supported"));
- }
-
- if (!_load_font_nodes.empty ()) {
- xmlpp::Element* load_font = root->add_child("LoadFont");
- load_font->set_attribute("Id", _load_font_nodes.front()->id);
- load_font->set_attribute("URI", _load_font_nodes.front()->uri);
- }
-
- list<shared_ptr<Subtitle> > sorted = _subtitles;
- if (_need_sort) {
- sorted.sort (SubtitleSorter ());
- }
-
- /* XXX: multiple fonts not supported */
- /* XXX: script, underlined, weight not supported */
-
- bool italic = false;
- Color color;
- int size = 0;
- Effect effect = NONE;
- Color effect_color;
- int spot_number = 1;
- Time last_in;
- Time last_out;
- Time last_fade_up_time;
- Time last_fade_down_time;
-
- xmlpp::Element* font = 0;
- xmlpp::Element* subtitle = 0;
-
- for (list<shared_ptr<Subtitle> >::iterator i = sorted.begin(); i != sorted.end(); ++i) {
-
- /* We will start a new <Font>...</Font> whenever some font property changes.
- I suppose we should really make an optimal hierarchy of <Font> tags, but
- that seems hard.
- */
-
- bool const font_changed =
- italic != (*i)->italic() ||
- color != (*i)->color() ||
- size != (*i)->size() ||
- effect != (*i)->effect() ||
- effect_color != (*i)->effect_color();
-
- if (font_changed) {
- italic = (*i)->italic ();
- color = (*i)->color ();
- size = (*i)->size ();
- effect = (*i)->effect ();
- effect_color = (*i)->effect_color ();
- }
-
- if (!font || font_changed) {
- font = root->add_child ("Font");
- string id = "theFontId";
- if (!_load_font_nodes.empty()) {
- id = _load_font_nodes.front()->id;
- }
- font->set_attribute ("Id", id);
- font->set_attribute ("Italic", italic ? "yes" : "no");
- font->set_attribute ("Color", color.to_argb_string());
- font->set_attribute ("Size", lexical_cast<string> (size));
- font->set_attribute ("Effect", effect_to_string (effect));
- font->set_attribute ("EffectColor", effect_color.to_argb_string());
- font->set_attribute ("Script", "normal");
- font->set_attribute ("Underlined", "no");
- font->set_attribute ("Weight", "normal");
- }
-
- if (!subtitle || font_changed ||
- (last_in != (*i)->in() ||
- last_out != (*i)->out() ||
- last_fade_up_time != (*i)->fade_up_time() ||
- last_fade_down_time != (*i)->fade_down_time()
- )) {
-
- subtitle = font->add_child ("Subtitle");
- subtitle->set_attribute ("SpotNumber", lexical_cast<string> (spot_number++));
- subtitle->set_attribute ("TimeIn", (*i)->in().to_string());
- subtitle->set_attribute ("TimeOut", (*i)->out().to_string());
- subtitle->set_attribute ("FadeUpTime", lexical_cast<string> ((*i)->fade_up_time().to_ticks()));
- subtitle->set_attribute ("FadeDownTime", lexical_cast<string> ((*i)->fade_down_time().to_ticks()));
-
- last_in = (*i)->in ();
- last_out = (*i)->out ();
- last_fade_up_time = (*i)->fade_up_time ();
- last_fade_down_time = (*i)->fade_down_time ();
- }
-
- xmlpp::Element* text = subtitle->add_child ("Text");
- text->set_attribute ("VAlign", valign_to_string ((*i)->v_align()));
- text->set_attribute ("VPosition", lexical_cast<string> ((*i)->v_position()));
- text->add_child_text ((*i)->text());
- }
-
- return doc.write_to_string_formatted ("UTF-8");
-}
-