/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of libdcp.
+
+ libdcp 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,
+ libdcp 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.
-
+ along with libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
*/
#include "raw_convert.h"
+#include "compose.hpp"
#include "subtitle_asset.h"
+#include "subtitle_asset_internal.h"
#include "util.h"
#include "xml.h"
-#include "font_node.h"
-#include "text_node.h"
#include "subtitle_string.h"
+#include "subtitle_image.h"
#include "dcp_assert.h"
-#include "AS_DCP.h"
-#include "KM_util.h"
+#include "load_font_node.h"
+#include <asdcp/AS_DCP.h>
+#include <asdcp/KM_util.h>
#include <libxml++/nodes/element.h>
#include <boost/algorithm/string.hpp>
-#include <fstream>
+#include <boost/lexical_cast.hpp>
+#include <boost/shared_array.hpp>
+#include <boost/foreach.hpp>
using std::string;
using std::list;
-using std::ostream;
-using std::ofstream;
-using std::stringstream;
using std::cout;
+using std::cerr;
+using std::map;
using boost::shared_ptr;
+using boost::shared_array;
using boost::optional;
using boost::dynamic_pointer_cast;
+using boost::lexical_cast;
using namespace dcp;
SubtitleAsset::SubtitleAsset ()
- : _reel_number ("1")
{
}
SubtitleAsset::SubtitleAsset (boost::filesystem::path file)
: Asset (file)
- , _reel_number ("1")
{
}
-void
-SubtitleAsset::parse_common (shared_ptr<cxml::Document> xml, list<shared_ptr<dcp::FontNode> > font_nodes)
+string
+string_attribute (xmlpp::Element const * node, string name)
{
- _reel_number = xml->string_child ("ReelNumber");
- _language = xml->string_child ("Language");
+ xmlpp::Attribute* a = node->get_attribute (name);
+ if (!a) {
+ throw XMLError (String::compose ("missing attribute %1", name));
+ }
+ return string (a->get_value ());
+}
- /* Now make Subtitle objects to represent the raw XML nodes
- in a sane way.
- */
+optional<string>
+optional_string_attribute (xmlpp::Element const * node, string name)
+{
+ xmlpp::Attribute* a = node->get_attribute (name);
+ if (!a) {
+ return optional<string>();
+ }
+ return string (a->get_value ());
+}
+
+optional<bool>
+optional_bool_attribute (xmlpp::Element const * node, string name)
+{
+ optional<string> s = optional_string_attribute (node, name);
+ if (!s) {
+ return optional<bool> ();
+ }
+
+ return (s.get() == "1" || s.get() == "yes");
+}
+
+template <class T>
+optional<T>
+optional_number_attribute (xmlpp::Element const * node, string name)
+{
+ boost::optional<std::string> s = optional_string_attribute (node, name);
+ if (!s) {
+ return boost::optional<T> ();
+ }
+
+ std::string t = s.get ();
+ boost::erase_all (t, " ");
+ return raw_convert<T> (t);
+}
+
+SubtitleAsset::ParseState
+SubtitleAsset::font_node_state (xmlpp::Element const * node, Standard standard) const
+{
+ ParseState ps;
+
+ if (standard == INTEROP) {
+ ps.font_id = optional_string_attribute (node, "Id");
+ } else {
+ ps.font_id = optional_string_attribute (node, "ID");
+ }
+ ps.size = optional_number_attribute<int64_t> (node, "Size");
+ ps.aspect_adjust = optional_number_attribute<float> (node, "AspectAdjust");
+ ps.italic = optional_bool_attribute (node, "Italic");
+ ps.bold = optional_string_attribute(node, "Weight").get_value_or("normal") == "bold";
+ if (standard == INTEROP) {
+ ps.underline = optional_bool_attribute (node, "Underlined");
+ } else {
+ ps.underline = optional_bool_attribute (node, "Underline");
+ }
+ optional<string> c = optional_string_attribute (node, "Color");
+ if (c) {
+ ps.colour = Colour (c.get ());
+ }
+ optional<string> const e = optional_string_attribute (node, "Effect");
+ if (e) {
+ ps.effect = string_to_effect (e.get ());
+ }
+ c = optional_string_attribute (node, "EffectColor");
+ if (c) {
+ ps.effect_colour = Colour (c.get ());
+ }
- ParseState parse_state;
- examine_font_nodes (xml, font_nodes, parse_state);
+ return ps;
}
void
-SubtitleAsset::examine_font_nodes (
- shared_ptr<const cxml::Node> xml,
- list<shared_ptr<dcp::FontNode> > const & font_nodes,
- ParseState& parse_state
- )
+SubtitleAsset::position_align (SubtitleAsset::ParseState& ps, xmlpp::Element const * node) const
{
- for (list<shared_ptr<dcp::FontNode> >::const_iterator i = font_nodes.begin(); i != font_nodes.end(); ++i) {
+ optional<float> hp = optional_number_attribute<float> (node, "HPosition");
+ if (!hp) {
+ hp = optional_number_attribute<float> (node, "Hposition");
+ }
+ if (hp) {
+ ps.h_position = hp.get () / 100;
+ }
- parse_state.font_nodes.push_back (*i);
- maybe_add_subtitle ((*i)->text, parse_state);
+ optional<string> ha = optional_string_attribute (node, "HAlign");
+ if (!ha) {
+ ha = optional_string_attribute (node, "Halign");
+ }
+ if (ha) {
+ ps.h_align = string_to_halign (ha.get ());
+ }
- for (list<shared_ptr<dcp::SubtitleNode> >::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 ();
+ optional<float> vp = optional_number_attribute<float> (node, "VPosition");
+ if (!vp) {
+ vp = optional_number_attribute<float> (node, "Vposition");
+ }
+ if (vp) {
+ ps.v_position = vp.get () / 100;
}
+
+ optional<string> va = optional_string_attribute (node, "VAlign");
+ if (!va) {
+ va = optional_string_attribute (node, "Valign");
+ }
+ if (va) {
+ ps.v_align = string_to_valign (va.get ());
+ }
+
+}
+
+SubtitleAsset::ParseState
+SubtitleAsset::text_node_state (xmlpp::Element const * node) const
+{
+ ParseState ps;
+
+ position_align (ps, node);
+
+ optional<string> d = optional_string_attribute (node, "Direction");
+ if (d) {
+ ps.direction = string_to_direction (d.get ());
+ }
+
+ ps.type = ParseState::TEXT;
+
+ return ps;
+}
+
+SubtitleAsset::ParseState
+SubtitleAsset::image_node_state (xmlpp::Element const * node) const
+{
+ ParseState ps;
+
+ position_align (ps, node);
+
+ ps.type = ParseState::IMAGE;
+
+ return ps;
+}
+
+SubtitleAsset::ParseState
+SubtitleAsset::subtitle_node_state (xmlpp::Element const * node, optional<int> tcr) const
+{
+ ParseState ps;
+ ps.in = Time (string_attribute(node, "TimeIn"), tcr);
+ ps.out = Time (string_attribute(node, "TimeOut"), tcr);
+ ps.fade_up_time = fade_time (node, "FadeUpTime", tcr);
+ ps.fade_down_time = fade_time (node, "FadeDownTime", tcr);
+ return ps;
+}
+
+Time
+SubtitleAsset::fade_time (xmlpp::Element const * node, string name, optional<int> tcr) const
+{
+ string const u = optional_string_attribute(node, name).get_value_or ("");
+ Time t;
+
+ if (u.empty ()) {
+ t = Time (0, 0, 0, 20, 250);
+ } else if (u.find (":") != string::npos) {
+ t = Time (u, tcr);
+ } else {
+ t = Time (0, 0, 0, lexical_cast<int> (u), tcr.get_value_or(250));
+ }
+
+ if (t > Time (0, 0, 8, 0, 250)) {
+ t = Time (0, 0, 8, 0, 250);
+ }
+
+ return t;
}
void
-SubtitleAsset::examine_text_nodes (
- shared_ptr<const cxml::Node> xml,
- list<shared_ptr<dcp::TextNode> > const & text_nodes,
- ParseState& parse_state
- )
+SubtitleAsset::parse_subtitles (xmlpp::Element const * node, list<ParseState>& state, optional<int> tcr, Standard standard)
{
- for (list<shared_ptr<dcp::TextNode> >::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 ();
+ if (node->get_name() == "Font") {
+ state.push_back (font_node_state (node, standard));
+ } else if (node->get_name() == "Subtitle") {
+ state.push_back (subtitle_node_state (node, tcr));
+ } else if (node->get_name() == "Text") {
+ state.push_back (text_node_state (node));
+ } else if (node->get_name() == "SubtitleList") {
+ state.push_back (ParseState ());
+ } else if (node->get_name() == "Image") {
+ state.push_back (image_node_state (node));
+ } else {
+ throw XMLError ("unexpected node " + node->get_name());
}
+
+ xmlpp::Node::NodeList c = node->get_children ();
+ for (xmlpp::Node::NodeList::const_iterator i = c.begin(); i != c.end(); ++i) {
+ xmlpp::ContentNode const * v = dynamic_cast<xmlpp::ContentNode const *> (*i);
+ if (v) {
+ maybe_add_subtitle (v->get_content(), state, standard);
+ }
+ xmlpp::Element const * e = dynamic_cast<xmlpp::Element const *> (*i);
+ if (e) {
+ parse_subtitles (e, state, tcr, standard);
+ }
+ }
+
+ state.pop_back ();
}
void
-SubtitleAsset::maybe_add_subtitle (string text, ParseState const & parse_state)
+SubtitleAsset::maybe_add_subtitle (string text, list<ParseState> const & parse_state, Standard standard)
{
if (empty_or_white_space (text)) {
return;
}
-
- if (parse_state.text_nodes.empty() || parse_state.subtitle_nodes.empty ()) {
+
+ ParseState ps;
+ BOOST_FOREACH (ParseState const & i, parse_state) {
+ if (i.font_id) {
+ ps.font_id = i.font_id.get();
+ }
+ if (i.size) {
+ ps.size = i.size.get();
+ }
+ if (i.aspect_adjust) {
+ ps.aspect_adjust = i.aspect_adjust.get();
+ }
+ if (i.italic) {
+ ps.italic = i.italic.get();
+ }
+ if (i.bold) {
+ ps.bold = i.bold.get();
+ }
+ if (i.underline) {
+ ps.underline = i.underline.get();
+ }
+ if (i.colour) {
+ ps.colour = i.colour.get();
+ }
+ if (i.effect) {
+ ps.effect = i.effect.get();
+ }
+ if (i.effect_colour) {
+ ps.effect_colour = i.effect_colour.get();
+ }
+ if (i.h_position) {
+ ps.h_position = i.h_position.get();
+ }
+ if (i.h_align) {
+ ps.h_align = i.h_align.get();
+ }
+ if (i.v_position) {
+ ps.v_position = i.v_position.get();
+ }
+ if (i.v_align) {
+ ps.v_align = i.v_align.get();
+ }
+ if (i.direction) {
+ ps.direction = i.direction.get();
+ }
+ if (i.in) {
+ ps.in = i.in.get();
+ }
+ if (i.out) {
+ ps.out = i.out.get();
+ }
+ if (i.fade_up_time) {
+ ps.fade_up_time = i.fade_up_time.get();
+ }
+ if (i.fade_down_time) {
+ ps.fade_down_time = i.fade_down_time.get();
+ }
+ if (i.type) {
+ ps.type = i.type.get();
+ }
+ }
+
+ if (!ps.in || !ps.out) {
+ /* We're not in a <Subtitle> node; just ignore this content */
return;
}
- DCP_ASSERT (!parse_state.text_nodes.empty ());
- DCP_ASSERT (!parse_state.subtitle_nodes.empty ());
-
- dcp::FontNode effective_font (parse_state.font_nodes);
- dcp::TextNode effective_text (*parse_state.text_nodes.back ());
- dcp::SubtitleNode effective_subtitle (*parse_state.subtitle_nodes.back ());
-
- _subtitles.push_back (
- SubtitleString (
- effective_font.id,
- effective_font.italic.get_value_or (false),
- effective_font.colour.get_value_or (dcp::Colour (255, 255, 255)),
- effective_font.size,
- effective_font.aspect_adjust.get_value_or (1.0),
- effective_subtitle.in,
- effective_subtitle.out,
- effective_text.h_position,
- effective_text.h_align,
- effective_text.v_position,
- effective_text.v_align,
- text,
- effective_font.effect.get_value_or (NONE),
- effective_font.effect_colour.get_value_or (dcp::Colour (0, 0, 0)),
- effective_subtitle.fade_up_time,
- effective_subtitle.fade_down_time
- )
- );
-}
-
-list<SubtitleString>
-SubtitleAsset::subtitles_during (Time from, Time to) const
-{
- list<SubtitleString> s;
- for (list<SubtitleString>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- if (i->out() >= from && i->in() <= to) {
- s.push_back (*i);
+ DCP_ASSERT (ps.type);
+
+ switch (ps.type.get()) {
+ case ParseState::TEXT:
+ _subtitles.push_back (
+ shared_ptr<Subtitle> (
+ new SubtitleString (
+ ps.font_id,
+ ps.italic.get_value_or (false),
+ ps.bold.get_value_or (false),
+ ps.underline.get_value_or (false),
+ ps.colour.get_value_or (dcp::Colour (255, 255, 255)),
+ ps.size.get_value_or (42),
+ ps.aspect_adjust.get_value_or (1.0),
+ ps.in.get(),
+ ps.out.get(),
+ ps.h_position.get_value_or(0),
+ ps.h_align.get_value_or(HALIGN_CENTER),
+ ps.v_position.get_value_or(0),
+ ps.v_align.get_value_or(VALIGN_CENTER),
+ ps.direction.get_value_or (DIRECTION_LTR),
+ text,
+ ps.effect.get_value_or (NONE),
+ ps.effect_colour.get_value_or (dcp::Colour (0, 0, 0)),
+ ps.fade_up_time.get_value_or(Time()),
+ ps.fade_down_time.get_value_or(Time())
+ )
+ )
+ );
+ break;
+ case ParseState::IMAGE:
+ /* Add a subtitle with no image data and we'll fill that in later */
+ _subtitles.push_back (
+ shared_ptr<Subtitle> (
+ new SubtitleImage (
+ Data (),
+ standard == INTEROP ? text.substr(0, text.size() - 4) : text,
+ ps.in.get(),
+ ps.out.get(),
+ ps.h_position.get_value_or(0),
+ ps.h_align.get_value_or(HALIGN_CENTER),
+ ps.v_position.get_value_or(0),
+ ps.v_align.get_value_or(VALIGN_CENTER),
+ ps.fade_up_time.get_value_or(Time()),
+ ps.fade_down_time.get_value_or(Time())
+ )
+ )
+ );
+ break;
+ }
+}
+
+list<shared_ptr<Subtitle> >
+SubtitleAsset::subtitles_during (Time from, Time to, bool starting) const
+{
+ list<shared_ptr<Subtitle> > s;
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
+ if ((starting && from <= i->in() && i->in() < to) || (!starting && i->out() >= from && i->in() <= to)) {
+ s.push_back (i);
}
}
}
void
-SubtitleAsset::add (SubtitleString s)
+SubtitleAsset::add (shared_ptr<Subtitle> s)
{
_subtitles.push_back (s);
}
-void
-SubtitleAsset::write_xml (boost::filesystem::path p) const
-{
- FILE* f = fopen_boost (p, "w");
- if (!f) {
- throw FileError ("Could not open file for writing", p, -1);
- }
-
- Glib::ustring const s = xml_as_string ();
- fwrite (s.c_str(), 1, s.bytes(), f);
- fclose (f);
-
- _file = p;
-}
-
Time
SubtitleAsset::latest_subtitle_out () const
{
Time t;
- for (list<SubtitleString>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
if (i->out() > t) {
t = i->out ();
}
if (!Asset::equals (other_asset, options, note)) {
return false;
}
-
+
shared_ptr<const SubtitleAsset> other = dynamic_pointer_cast<const SubtitleAsset> (other_asset);
if (!other) {
return false;
}
- if (_reel_number != other->_reel_number) {
- note (DCP_ERROR, "subtitle reel numbers differ");
+ if (_subtitles.size() != other->_subtitles.size()) {
+ note (DCP_ERROR, "subtitles differ");
return false;
}
- if (_language != other->_language) {
- note (DCP_ERROR, "subtitle languages differ");
- return false;
- }
+ list<shared_ptr<Subtitle> >::const_iterator i = _subtitles.begin ();
+ list<shared_ptr<Subtitle> >::const_iterator j = other->_subtitles.begin ();
- if (_subtitles != other->_subtitles) {
- note (DCP_ERROR, "subtitles differ");
- return false;
+ while (i != _subtitles.end()) {
+ shared_ptr<SubtitleString> string_i = dynamic_pointer_cast<SubtitleString> (*i);
+ shared_ptr<SubtitleString> string_j = dynamic_pointer_cast<SubtitleString> (*j);
+ shared_ptr<SubtitleImage> image_i = dynamic_pointer_cast<SubtitleImage> (*i);
+ shared_ptr<SubtitleImage> image_j = dynamic_pointer_cast<SubtitleImage> (*j);
+
+ if ((string_i && !string_j) || (image_i && !image_j)) {
+ note (DCP_ERROR, "subtitles differ");
+ return false;
+ }
+
+ if (string_i && *string_i != *string_j) {
+ note (DCP_ERROR, "subtitles differ");
+ return false;
+ }
+
+ if (image_i && *image_i != *image_j) {
+ note (DCP_ERROR, "subtitles differ");
+ return false;
+ }
+
+ ++i;
+ ++j;
}
return true;
}
+
+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::pull_fonts (shared_ptr<order::Part> part)
+{
+ if (part->children.empty ()) {
+ return;
+ }
+
+ /* Pull up from children */
+ BOOST_FOREACH (shared_ptr<order::Part> i, part->children) {
+ pull_fonts (i);
+ }
+
+ if (part->parent) {
+ /* Establish the common font features that each of part's children have;
+ these features go into part's font.
+ */
+ part->font = part->children.front()->font;
+ BOOST_FOREACH (shared_ptr<order::Part> i, part->children) {
+ part->font.take_intersection (i->font);
+ }
+
+ /* Remove common values from part's children's fonts */
+ BOOST_FOREACH (shared_ptr<order::Part> i, part->children) {
+ i->font.take_difference (part->font);
+ }
+ }
+
+ /* Merge adjacent children with the same font */
+ list<shared_ptr<order::Part> >::const_iterator i = part->children.begin();
+ list<shared_ptr<order::Part> > merged;
+
+ while (i != part->children.end()) {
+
+ if ((*i)->font.empty ()) {
+ merged.push_back (*i);
+ ++i;
+ } else {
+ list<shared_ptr<order::Part> >::const_iterator j = i;
+ ++j;
+ while (j != part->children.end() && (*i)->font == (*j)->font) {
+ ++j;
+ }
+ if (std::distance (i, j) == 1) {
+ merged.push_back (*i);
+ ++i;
+ } else {
+ shared_ptr<order::Part> group (new order::Part (part, (*i)->font));
+ for (list<shared_ptr<order::Part> >::const_iterator k = i; k != j; ++k) {
+ (*k)->font.clear ();
+ group->children.push_back (*k);
+ }
+ merged.push_back (group);
+ i = j;
+ }
+ }
+ }
+
+ part->children = merged;
+}
+
+/** @param standard Standard (INTEROP or SMPTE); this is used rather than putting things in the child
+ * class because the differences between the two are fairly subtle.
+ */
+void
+SubtitleAsset::subtitles_as_xml (xmlpp::Element* xml_root, int time_code_rate, Standard standard) const
+{
+ list<shared_ptr<Subtitle> > sorted = _subtitles;
+ sorted.sort (SubtitleSorter ());
+
+ /* Gather our subtitles into a hierarchy of Subtitle/Text/String objects, writing
+ font information into the bottom level (String) objects.
+ */
+
+ shared_ptr<order::Part> root (new order::Part (shared_ptr<order::Part> ()));
+ shared_ptr<order::Subtitle> subtitle;
+ shared_ptr<order::Text> text;
+
+ Time last_in;
+ Time last_out;
+ Time last_fade_up_time;
+ Time last_fade_down_time;
+ HAlign last_h_align;
+ float last_h_position;
+ VAlign last_v_align;
+ float last_v_position;
+ Direction last_direction;
+
+ BOOST_FOREACH (shared_ptr<Subtitle> i, sorted) {
+ if (!subtitle ||
+ (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.reset (new order::Subtitle (root, i->in(), i->out(), i->fade_up_time(), i->fade_down_time()));
+ root->children.push_back (subtitle);
+
+ last_in = i->in ();
+ last_out = i->out ();
+ last_fade_up_time = i->fade_up_time ();
+ last_fade_down_time = i->fade_down_time ();
+ text.reset ();
+ }
+
+ shared_ptr<SubtitleString> is = dynamic_pointer_cast<SubtitleString>(i);
+ if (is) {
+ if (!text ||
+ last_h_align != is->h_align() ||
+ fabs(last_h_position - is->h_position()) > ALIGN_EPSILON ||
+ last_v_align != is->v_align() ||
+ fabs(last_v_position - is->v_position()) > ALIGN_EPSILON ||
+ last_direction != is->direction()
+ ) {
+ text.reset (new order::Text (subtitle, is->h_align(), is->h_position(), is->v_align(), is->v_position(), is->direction()));
+ subtitle->children.push_back (text);
+
+ last_h_align = is->h_align ();
+ last_h_position = is->h_position ();
+ last_v_align = is->v_align ();
+ last_v_position = is->v_position ();
+ last_direction = is->direction ();
+ }
+
+ text->children.push_back (shared_ptr<order::String> (new order::String (text, order::Font (is, standard), is->text())));
+ }
+
+ shared_ptr<SubtitleImage> ii = dynamic_pointer_cast<SubtitleImage>(i);
+ if (ii) {
+ text.reset ();
+ subtitle->children.push_back (
+ shared_ptr<order::Image> (new order::Image (subtitle, ii->id(), ii->png_image(), ii->h_align(), ii->h_position(), ii->v_align(), ii->v_position()))
+ );
+ }
+ }
+
+ /* Pull font changes as high up the hierarchy as we can */
+
+ pull_fonts (root);
+
+ /* Write XML */
+
+ order::Context context;
+ context.time_code_rate = time_code_rate;
+ context.standard = standard;
+ context.spot_number = 1;
+
+ root->write_xml (xml_root, context);
+}
+
+map<string, Data>
+SubtitleAsset::fonts_with_load_ids () const
+{
+ map<string, Data> out;
+ BOOST_FOREACH (Font const & i, _fonts) {
+ out[i.load_id] = i.data;
+ }
+ return out;
+}
+
+/** Replace empty IDs in any <LoadFontId> and <Font> tags with
+ * a dummy string. Some systems give errors with empty font IDs
+ * (see DCP-o-matic bug #1689).
+ */
+void
+SubtitleAsset::fix_empty_font_ids ()
+{
+ bool have_empty = false;
+ list<string> ids;
+ BOOST_FOREACH (shared_ptr<LoadFontNode> i, load_font_nodes()) {
+ if (i->id == "") {
+ have_empty = true;
+ } else {
+ ids.push_back (i->id);
+ }
+ }
+
+ if (!have_empty) {
+ return;
+ }
+
+ string const empty_id = unique_string (ids, "font");
+
+ BOOST_FOREACH (shared_ptr<LoadFontNode> i, load_font_nodes()) {
+ if (i->id == "") {
+ i->id = empty_id;
+ }
+ }
+
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
+ shared_ptr<SubtitleString> j = dynamic_pointer_cast<SubtitleString> (i);
+ if (j && j->font() && j->font().get() == "") {
+ j->set_font (empty_id);
+ }
+ }
+}
projects / libdcp.git / blobdiff