+/*
+ Copyright (C) 2020 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 "analyse_subtitles_job.h"
+#include "playlist.h"
+#include "player.h"
+#include "subtitle_analysis.h"
+#include "bitmap_text.h"
+#include "render_text.h"
+#include "text_content.h"
+#include "image.h"
+#include <iostream>
+
+#include "i18n.h"
+
+using std::string;
+using boost::shared_ptr;
+using boost::weak_ptr;
+
+AnalyseSubtitlesJob::AnalyseSubtitlesJob (shared_ptr<const Film> film, shared_ptr<Content> content)
+ : Job (film)
+ , _content (content)
+ , _path (_film->subtitle_analysis_path(content))
+{
+}
+
+
+string
+AnalyseSubtitlesJob::name () const
+{
+ return _("Analysing subtitles");
+}
+
+
+string
+AnalyseSubtitlesJob::json_name () const
+{
+ return N_("analyse_subtitles");
+}
+
+
+void
+AnalyseSubtitlesJob::run ()
+{
+ shared_ptr<Playlist> playlist (new Playlist());
+ shared_ptr<Content> content = _content.lock ();
+ DCPOMATIC_ASSERT (content);
+ playlist->add (_film, content);
+
+ shared_ptr<Player> player (new Player(_film, playlist));
+ player->set_ignore_audio ();
+ player->set_fast ();
+ player->set_play_referenced ();
+ player->Text.connect (bind(&AnalyseSubtitlesJob::analyse, this, _1, _2));
+
+ set_progress_unknown ();
+
+ if (!content->text.empty()) {
+ while (!player->pass ()) {}
+ }
+
+ SubtitleAnalysis analysis (_bounding_box, content->text.front()->x_offset(), content->text.front()->y_offset());
+ analysis.write (_path);
+
+ set_progress (1);
+ set_state (FINISHED_OK);
+}
+
+
+void
+AnalyseSubtitlesJob::analyse (PlayerText text, TextType type)
+{
+ if (type != TEXT_OPEN_SUBTITLE) {
+ return;
+ }
+
+ BOOST_FOREACH (BitmapText const& i, text.bitmap) {
+ if (!_bounding_box) {
+ _bounding_box = i.rectangle;
+ } else {
+ _bounding_box->extend (i.rectangle);
+ }
+ }
+
+ if (!text.string.empty()) {
+ /* We can provide dummy values for time and frame rate here as they are only used to calculate fades */
+ dcp::Size const frame = _film->frame_size();
+ BOOST_FOREACH (PositionImage i, render_text(text.string, text.fonts, frame, dcpomatic::DCPTime(), 24)) {
+ dcpomatic::Rect<double> rect (
+ double(i.position.x) / frame.width, double(i.position.y) / frame.height,
+ double(i.image->size().width) / frame.width, double(i.image->size().height) / frame.height
+ );
+ if (!_bounding_box) {
+ _bounding_box = rect;
+ } else {
+ _bounding_box->extend (rect);
+ }
+ }
+ }
+}
+