/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 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.
*/
+
+/** @file src/subtitle_asset.cc
+ * @brief SubtitleAsset class
+ */
+
+
#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 "reel_asset.h"
+#include <asdcp/AS_DCP.h>
+#include <asdcp/KM_util.h>
#include <libxml++/nodes/element.h>
#include <boost/algorithm/string.hpp>
+#include <boost/lexical_cast.hpp>
#include <boost/shared_array.hpp>
-#include <fstream>
+
+using std::dynamic_pointer_cast;
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 std::shared_ptr;
+using std::vector;
+using std::make_shared;
using boost::shared_array;
using boost::optional;
-using boost::dynamic_pointer_cast;
+using boost::lexical_cast;
using namespace dcp;
+
SubtitleAsset::SubtitleAsset ()
{
}
+
SubtitleAsset::SubtitleAsset (boost::filesystem::path file)
: Asset (file)
{
}
-void
-SubtitleAsset::parse_subtitles (shared_ptr<cxml::Document> xml, list<shared_ptr<dcp::FontNode> > font_nodes)
+
+string
+string_attribute (xmlpp::Element const * node, string name)
+{
+ auto a = node->get_attribute (name);
+ if (!a) {
+ throw XMLError (String::compose ("missing attribute %1", name));
+ }
+ return string (a->get_value ());
+}
+
+
+optional<string>
+optional_string_attribute (xmlpp::Element const * node, string name)
+{
+ auto a = node->get_attribute (name);
+ if (!a) {
+ return {};
+ }
+ return string (a->get_value ());
+}
+
+
+optional<bool>
+optional_bool_attribute (xmlpp::Element const * node, string name)
+{
+ auto s = optional_string_attribute (node, name);
+ if (!s) {
+ return {};
+ }
+
+ return (s.get() == "1" || s.get() == "yes");
+}
+
+
+template <class T>
+optional<T>
+optional_number_attribute (xmlpp::Element const * node, string name)
{
- /* Make Subtitle objects to represent the raw XML nodes in a sane way */
- ParseState parse_state;
- examine_font_nodes (xml, font_nodes, parse_state);
+ auto 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 == 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 == Standard::INTEROP) {
+ ps.underline = optional_bool_attribute (node, "Underlined");
+ } else {
+ ps.underline = optional_bool_attribute (node, "Underline");
+ }
+ auto c = optional_string_attribute (node, "Color");
+ if (c) {
+ ps.colour = Colour (c.get ());
+ }
+ auto 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 ());
+ }
+
+ 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) {
+ auto 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);
+ auto 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 ();
- }
+ auto vp = optional_number_attribute<float> (node, "VPosition");
+ if (!vp) {
+ vp = optional_number_attribute<float> (node, "Vposition");
+ }
+ if (vp) {
+ ps.v_position = vp.get () / 100;
+ }
+
+ auto 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);
+
+ auto d = optional_string_attribute (node, "Direction");
+ if (d) {
+ ps.direction = string_to_direction (d.get ());
+ }
+
+ ps.type = ParseState::Type::TEXT;
+
+ return ps;
+}
+
+
+SubtitleAsset::ParseState
+SubtitleAsset::image_node_state (xmlpp::Element const * node) const
+{
+ ParseState ps;
+
+ position_align (ps, node);
+
+ ps.type = ParseState::Type::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
+{
+ auto const u = optional_string_attribute(node, name).get_value_or ("");
+ Time t;
- examine_font_nodes (xml, (*i)->font_nodes, parse_state);
- examine_text_nodes (xml, (*i)->text_nodes, parse_state);
+ 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));
+ }
- parse_state.font_nodes.pop_back ();
+ 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, vector<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());
}
+
+ for (auto i: node->get_children()) {
+ auto const v = dynamic_cast<xmlpp::ContentNode const *>(i);
+ if (v) {
+ maybe_add_subtitle (v->get_content(), state, standard);
+ }
+ auto 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, vector<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;
+ for (auto 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
- )
- );
+ DCP_ASSERT (ps.type);
+
+ switch (ps.type.get()) {
+ case ParseState::Type::TEXT:
+ _subtitles.push_back (
+ make_shared<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 (Effect::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::Type::IMAGE:
+ {
+ switch (standard) {
+ case Standard::INTEROP:
+ if (text.size() >= 4) {
+ /* Remove file extension */
+ text = text.substr(0, text.size() - 4);
+ }
+ break;
+ case Standard::SMPTE:
+ /* It looks like this urn:uuid: is required, but DoM wasn't expecting it (and not writing it)
+ * until around 2.15.140 so I guess either:
+ * a) it is not (always) used in the field, or
+ * b) nobody noticed / complained.
+ */
+ if (text.substr(0, 9) == "urn:uuid:") {
+ text = text.substr(9);
+ }
+ break;
+ }
+
+ /* Add a subtitle with no image data and we'll fill that in later */
+ _subtitles.push_back (
+ make_shared<SubtitleImage>(
+ ArrayData(),
+ 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<SubtitleString>
-SubtitleAsset::subtitles_during (Time from, Time to) const
+
+vector<shared_ptr<const Subtitle>>
+SubtitleAsset::subtitles () const
+{
+ vector<shared_ptr<const Subtitle>> s;
+ for (auto i: _subtitles) {
+ s.push_back (i);
+ }
+ return s;
+}
+
+
+vector<shared_ptr<const Subtitle>>
+SubtitleAsset::subtitles_during (Time from, Time to, bool starting) 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);
+ vector<shared_ptr<const Subtitle>> s;
+ for (auto i: _subtitles) {
+ if ((starting && from <= i->in() && i->in() < to) || (!starting && i->out() >= from && i->in() <= to)) {
+ s.push_back (i);
}
}
return s;
}
+
+/* XXX: this needs a test */
+vector<shared_ptr<const Subtitle>>
+SubtitleAsset::subtitles_in_reel (shared_ptr<const dcp::ReelAsset> asset) const
+{
+ auto frame_rate = asset->edit_rate().as_float();
+ auto start = dcp::Time(asset->entry_point().get_value_or(0), frame_rate, time_code_rate());
+ auto during = subtitles_during (start, start + dcp::Time(asset->intrinsic_duration(), frame_rate, time_code_rate()), false);
+
+ vector<shared_ptr<const dcp::Subtitle>> corrected;
+ for (auto i: during) {
+ auto c = make_shared<dcp::Subtitle>(*i);
+ c->set_in (c->in() - start);
+ c->set_out (c->out() - start);
+ corrected.push_back (c);
+ }
+
+ return corrected;
+}
+
+
void
-SubtitleAsset::add (SubtitleString s)
+SubtitleAsset::add (shared_ptr<Subtitle> s)
{
_subtitles.push_back (s);
}
+
Time
SubtitleAsset::latest_subtitle_out () const
{
Time t;
- for (list<SubtitleString>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
+ for (auto i: _subtitles) {
if (i->out() > t) {
t = i->out ();
}
return t;
}
+
bool
SubtitleAsset::equals (shared_ptr<const Asset> other_asset, EqualityOptions options, NoteHandler note) const
{
return false;
}
- shared_ptr<const SubtitleAsset> other = dynamic_pointer_cast<const SubtitleAsset> (other_asset);
+ auto other = dynamic_pointer_cast<const SubtitleAsset> (other_asset);
if (!other) {
return false;
}
- if (_subtitles != other->_subtitles) {
- note (DCP_ERROR, "subtitles differ");
+ if (_subtitles.size() != other->_subtitles.size()) {
+ note (NoteType::ERROR, String::compose("different number of subtitles: %1 vs %2", _subtitles.size(), other->_subtitles.size()));
return false;
}
+ auto i = _subtitles.begin();
+ auto j = other->_subtitles.begin();
+
+ while (i != _subtitles.end()) {
+ auto string_i = dynamic_pointer_cast<SubtitleString> (*i);
+ auto string_j = dynamic_pointer_cast<SubtitleString> (*j);
+ auto image_i = dynamic_pointer_cast<SubtitleImage> (*i);
+ auto image_j = dynamic_pointer_cast<SubtitleImage> (*j);
+
+ if ((string_i && !string_j) || (image_i && !image_j)) {
+ note (NoteType::ERROR, "subtitles differ: string vs. image");
+ return false;
+ }
+
+ if (string_i && *string_i != *string_j) {
+ note (NoteType::ERROR, String::compose("subtitles differ in text or metadata: %1 vs %2", string_i->text(), string_j->text()));
+ return false;
+ }
+
+ if (image_i && !image_i->equals(image_j, options, note)) {
+ return false;
+ }
+
+ ++i;
+ ++j;
+ }
+
return true;
}
-struct SubtitleSorter {
- bool operator() (SubtitleString const & a, SubtitleString const & b) {
- if (a.in() != b.in()) {
- return a.in() < b.in();
+
+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();
+ return a->v_position() < b->v_position();
}
};
+
void
-SubtitleAsset::subtitles_as_xml (xmlpp::Element* root, int time_code_rate, string xmlns) const
+SubtitleAsset::pull_fonts (shared_ptr<order::Part> part)
{
- list<SubtitleString> sorted = _subtitles;
- sorted.sort (SubtitleSorter ());
-
- /* XXX: script, underlined, weight not supported */
-
- optional<string> font;
- bool italic = false;
- Colour colour;
- int size = 0;
- float aspect_adjust = 1.0;
- Effect effect = NONE;
- Colour effect_colour;
- int spot_number = 1;
- Time last_in;
- Time last_out;
- Time last_fade_up_time;
- Time last_fade_down_time;
-
- xmlpp::Element* font_element = 0;
- xmlpp::Element* subtitle_element = 0;
+ if (part->children.empty ()) {
+ return;
+ }
- for (list<SubtitleString>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
+ /* Pull up from children */
+ for (auto i: part->children) {
+ pull_fonts (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.
+ 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;
+ for (auto i: part->children) {
+ part->font.take_intersection (i->font);
+ }
+
+ /* Remove common values from part's children's fonts */
+ for (auto i: part->children) {
+ i->font.take_difference (part->font);
+ }
+ }
- bool const font_changed =
- font != i->font() ||
- italic != i->italic() ||
- colour != i->colour() ||
- size != i->size() ||
- fabs (aspect_adjust - i->aspect_adjust()) > ASPECT_ADJUST_EPSILON ||
- effect != i->effect() ||
- effect_colour != i->effect_colour();
-
- if (font_changed) {
- font = i->font ();
- italic = i->italic ();
- colour = i->colour ();
- size = i->size ();
- aspect_adjust = i->aspect_adjust ();
- effect = i->effect ();
- effect_colour = i->effect_colour ();
- }
-
- if (!font_element || font_changed) {
- font_element = root->add_child ("Font", xmlns);
- if (font) {
- font_element->set_attribute ("Id", font.get ());
+ /* Merge adjacent children with the same font */
+ auto i = part->children.begin();
+ vector<shared_ptr<order::Part>> merged;
+
+ while (i != part->children.end()) {
+
+ if ((*i)->font.empty ()) {
+ merged.push_back (*i);
+ ++i;
+ } else {
+ auto j = i;
+ ++j;
+ while (j != part->children.end() && (*i)->font == (*j)->font) {
+ ++j;
}
- font_element->set_attribute ("Italic", italic ? "yes" : "no");
- font_element->set_attribute ("Color", colour.to_argb_string());
- font_element->set_attribute ("Size", raw_convert<string> (size));
- if (fabs (aspect_adjust - 1.0) > ASPECT_ADJUST_EPSILON) {
- font_element->set_attribute ("AspectAdjust", raw_convert<string> (aspect_adjust));
+ if (std::distance (i, j) == 1) {
+ merged.push_back (*i);
+ ++i;
+ } else {
+ shared_ptr<order::Part> group (new order::Part (part, (*i)->font));
+ for (auto k = i; k != j; ++k) {
+ (*k)->font.clear ();
+ group->children.push_back (*k);
+ }
+ merged.push_back (group);
+ i = j;
}
- font_element->set_attribute ("Effect", effect_to_string (effect));
- font_element->set_attribute ("EffectColor", effect_colour.to_argb_string());
- font_element->set_attribute ("Script", "normal");
- font_element->set_attribute ("Underlined", "no");
- font_element->set_attribute ("Weight", "normal");
}
+ }
+
+ 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
+{
+ auto sorted = _subtitles;
+ std::stable_sort(sorted.begin(), sorted.end(), SubtitleSorter());
- if (!subtitle_element || font_changed ||
+ /* Gather our subtitles into a hierarchy of Subtitle/Text/String objects, writing
+ font information into the bottom level (String) objects.
+ */
+
+ auto root = make_shared<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;
+
+ for (auto 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()
- )) {
+ last_fade_down_time != i->fade_down_time())
+ ) {
- subtitle_element = font_element->add_child ("Subtitle", xmlns);
- subtitle_element->set_attribute ("SpotNumber", raw_convert<string> (spot_number++));
- subtitle_element->set_attribute ("TimeIn", i->in().rebase(time_code_rate).as_string());
- subtitle_element->set_attribute ("TimeOut", i->out().rebase(time_code_rate).as_string());
- subtitle_element->set_attribute ("FadeUpTime", raw_convert<string> (i->fade_up_time().as_editable_units(time_code_rate)));
- subtitle_element->set_attribute ("FadeDownTime", raw_convert<string> (i->fade_down_time().as_editable_units(time_code_rate)));
+ subtitle = make_shared<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 ();
}
- xmlpp::Element* text = subtitle_element->add_child ("Text", xmlns);
- if (i->h_align() != HALIGN_CENTER) {
- text->set_attribute ("HAlign", halign_to_string (i->h_align ()));
+ auto 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 (make_shared<order::String>(text, order::Font (is, standard), is->text()));
}
- if (i->h_position() > ALIGN_EPSILON) {
- text->set_attribute ("HPosition", raw_convert<string> (i->h_position() * 100, 6));
+
+ auto ii = dynamic_pointer_cast<SubtitleImage>(i);
+ if (ii) {
+ text.reset ();
+ subtitle->children.push_back (
+ make_shared<order::Image>(subtitle, ii->id(), ii->png_image(), ii->h_align(), ii->h_position(), ii->v_align(), ii->v_position())
+ );
}
- text->set_attribute ("VAlign", valign_to_string (i->v_align()));
- text->set_attribute ("VPosition", raw_convert<string> (i->v_position() * 100, 6));
- text->add_child_text (i->text());
}
+
+ /* 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);
}
-void
-SubtitleAsset::add_font_data (string id, boost::filesystem::path file)
+
+map<string, ArrayData>
+SubtitleAsset::font_data () const
{
- boost::uintmax_t size = boost::filesystem::file_size (file);
- FILE* f = fopen_boost (file, "rb");
- if (!f) {
- throw FileError ("could not open font file for reading", file, errno);
+ map<string, ArrayData> out;
+ for (auto const& i: _fonts) {
+ out[i.load_id] = i.data;
}
+ return out;
+}
- shared_array<uint8_t> data (new uint8_t[size]);
- size_t const read = fread (data.get(), 1, size, f);
- fclose (f);
- if (read != size) {
- throw FileError ("could not read font file", file, -1);
+map<string, boost::filesystem::path>
+SubtitleAsset::font_filenames () const
+{
+ map<string, boost::filesystem::path> out;
+ for (auto const& i: _fonts) {
+ if (i.file) {
+ out[i.load_id] = *i.file;
+ }
}
-
- _fonts[id] = FileData (data, size);
+ return out;
}
-map<string, Data>
-SubtitleAsset::fonts () const
+
+/** 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 ()
{
- map<string, Data> out;
- for (map<string, FileData>::const_iterator i = _fonts.begin(); i != _fonts.end(); ++i) {
- out[i->first] = i->second;
+ bool have_empty = false;
+ vector<string> ids;
+ for (auto 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");
+
+ for (auto i: load_font_nodes()) {
+ if (i->id == "") {
+ i->id = empty_id;
+ }
+ }
+
+ for (auto i: _subtitles) {
+ auto j = dynamic_pointer_cast<SubtitleString> (i);
+ if (j && j->font() && j->font().get() == "") {
+ j->set_font (empty_id);
+ }
}
- return out;
}
projects / libdcp.git / blobdiff