2 Copyright (C) 2017 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "active_subtitles.h"
23 #include "subtitle_content.h"
24 #include <boost/shared_ptr.hpp>
25 #include <boost/weak_ptr.hpp>
30 using boost::weak_ptr;
31 using boost::shared_ptr;
33 /** Get the subtitles that should be burnt into a frame at a given time.
34 * @param time Frame time.
35 * @param always_burn_subtitles Always burn subtitles even if their content is not set to burn.
38 ActiveSubtitles::get_burnt (DCPTime time, bool always_burn_subtitles) const
40 list<PlayerSubtitles> ps;
42 for (Map::const_iterator i = _data.begin(); i != _data.end(); ++i) {
44 shared_ptr<Piece> piece = i->first.lock ();
49 if (!piece->content->subtitle->use() || (!always_burn_subtitles && !piece->content->subtitle->burn())) {
50 /* Not burning this piece */
54 BOOST_FOREACH (Period j, i->second) {
55 if (j.from <= time && (!j.to || j.to.get() > time)) {
56 ps.push_back (j.subs);
64 /** Remove subtitles that finish before a given time from our list.
65 * @param time Time to remove before.
68 ActiveSubtitles::clear_before (DCPTime time)
71 for (Map::const_iterator i = _data.begin(); i != _data.end(); ++i) {
73 BOOST_FOREACH (Period j, i->second) {
74 if (!j.to || j.to.get() >= time) {
79 updated[i->first] = as;
85 /** Add a new subtitle with a from time.
86 * @param piece Piece that the subtitle is from.
87 * @param ps Subtitles.
88 * @param from From time for these subtitles.
91 ActiveSubtitles::add_from (weak_ptr<Piece> piece, PlayerSubtitles ps, DCPTime from)
93 if (_data.find(piece) == _data.end()) {
94 _data[piece] = list<Period>();
96 _data[piece].push_back (Period (ps, from));
99 /** Add the to time for the last subtitle added from a piece.
100 * @param piece Piece that the subtitle is from.
101 * @param to To time for the last subtitle submitted to add_from for this piece.
102 * @return Return the corresponding subtitles and their from time.
104 pair<PlayerSubtitles, DCPTime>
105 ActiveSubtitles::add_to (weak_ptr<Piece> piece, DCPTime to)
107 DCPOMATIC_ASSERT (_data.find(piece) != _data.end());
109 _data[piece].back().to = to;
111 BOOST_FOREACH (SubtitleString& i, _data[piece].back().subs.text) {
112 i.set_out (dcp::Time(to.seconds(), 1000));
115 return make_pair (_data[piece].back().subs, _data[piece].back().from);
118 /** @param piece A piece.
119 * @return true if we have any active subtitles from this piece.
122 ActiveSubtitles::have (weak_ptr<Piece> piece) const
124 Map::const_iterator i = _data.find(piece);
125 if (i == _data.end()) {
129 return !i->second.empty();
133 ActiveSubtitles::clear ()