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// subtitleeditor -- a tool to create or edit subtitle
//
// https://subtitleeditor.github.io/subtitleeditor/
// https://github.com/subtitleeditor/subtitleeditor/
//
// Copyright @ 2005-2018, kitone
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
#include <extension/subtitleformat.h>
#include <gtkmm_utility.h>
#include <gui/dialogutility.h>
#include <player.h>
#include <subtitleeditorwindow.h>
#include <utility.h>
#include <memory>
// BITC (Burnt-in timecode)
class BITC : public SubtitleFormatIO {
public:
BITC() : m_framerate(FRAMERATE_23_976) {
m_framerate_value = get_framerate_value(m_framerate);
}
void open(Reader& file) {
// Ask for the framerate value
FramerateChooserDialog fcd(FramerateChooserDialog::IMPORT);
// Define the default value of the framerate from the player
Player* player = SubtitleEditorWindow::get_instance()->get_player();
if (player->get_state() != Player::NONE) {
float player_framerate = player->get_framerate();
if (player_framerate > 0)
fcd.set_default_framerate(get_framerate_from_value(player_framerate));
}
FRAMERATE framerate = fcd.execute();
m_framerate_value = get_framerate_value(framerate);
document()->set_framerate(framerate);
Glib::RefPtr<Glib::Regex> re_time = Glib::Regex::create("^(\\d+):(\\d+):(\\d+):(\\d+)\\s(\\d+):(\\d+):(\\d+):(\\d+)$");
Subtitles subtitles = document()->subtitles();
int start[4], end[4];
Glib::ustring line;
Glib::ustring text;
Subtitle sub;
while (file.getline(line)) {
if (re_time->match(line)) {
std::vector<Glib::ustring> group = re_time->split(line);
start[0] = utility::string_to_int(group[1]);
start[1] = utility::string_to_int(group[2]);
start[2] = utility::string_to_int(group[3]);
start[3] = utility::string_to_int(group[4]);
end[0] = utility::string_to_int(group[5]);
end[1] = utility::string_to_int(group[6]);
end[2] = utility::string_to_int(group[7]);
end[3] = utility::string_to_int(group[8]);
file.getline(text);
// Replace '|' by a newline
utility::replace(text, "|", "\n");
// last 00 are frame, not time!
start[3] = static_cast<int>(start[3] * 1000 / m_framerate_value);
end[3] = static_cast<int>(end[3] * 1000 / m_framerate_value);
// Append a subtitle
sub = subtitles.append();
sub.set_text(text);
sub.set_start_and_end(SubtitleTime(start[0], start[1], start[2], start[3]), SubtitleTime(end[0], end[1], end[2], end[3]));
}
}
}
void save(Writer& file) {
// Ask for the framerate value
FramerateChooserDialog fcd(FramerateChooserDialog::EXPORT);
fcd.set_default_framerate(document()->get_framerate());
m_framerate_value = get_framerate_value(fcd.execute());
for (Subtitle sub = document()->subtitles().get_first(); sub; ++sub) {
Glib::ustring text = sub.get_text();
utility::replace(text, "\n", "|");
file.write(Glib::ustring::compose("%1 %2\n%3\n\n", to_bitc_time(sub.get_start()), to_bitc_time(sub.get_end()), text));
}
}
// Convert time from SE to BITC
// 0:00:00.000 -> 00:00:00:00 (last 00 are frames, not time!)
Glib::ustring to_bitc_time(const SubtitleTime& t) {
int frame = static_cast<int>(t.mseconds() * m_framerate_value * 0.001);
return build_message("%02i:%02i:%02i:%02i", t.hours(), t.minutes(), t.seconds(), frame);
}
protected:
FRAMERATE m_framerate;
double m_framerate_value;
};
class BITCPlugin : public SubtitleFormat {
public:
SubtitleFormatInfo get_info() {
SubtitleFormatInfo info;
info.name = "BITC (Burnt-in timecode)";
info.extension = "txt";
info.pattern =
"\\d+:\\d+:\\d+:\\d+\\s\\d+:\\d+:\\d+:\\d+\\R"
".*\\R";
return info;
}
SubtitleFormatIO* create() {
return new BITC;
}
};
REGISTER_EXTENSION(BITCPlugin)
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