2 Copyright (C) 2017-2021 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/>.
23 #include "content_part.h"
24 #include "dcp_content.h"
25 #include "dcpomatic_time_coalesce.h"
26 #include "empty_video.h"
30 #include "video_content.h"
35 using std::dynamic_pointer_cast;
38 using std::shared_ptr;
39 using namespace dcpomatic;
42 EmptyVideo::EmptyVideo (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist, DCPTime length)
44 list<DCPTimePeriod> full;
45 for (auto i: playlist->content()) {
46 if (i->video && i->video->use() && i->can_be_played() && i->paths_valid()) {
47 full.push_back (DCPTimePeriod(i->position(), i->end(film)));
51 _periods = subtract (DCPTimePeriod(DCPTime(), length), coalesce(full));
53 if (!_periods.empty()) {
54 _position = _periods.front().from;
60 EmptyVideo::set_position (DCPTime position)
64 for (auto i: _periods) {
65 if (i.contains(_position)) {
70 for (auto i: _periods) {
71 if (i.from > _position) {
80 EmptyVideo::period_at_position () const
82 for (auto i: _periods) {
83 if (i.contains(_position)) {
84 return DCPTimePeriod (_position, i.to);
88 DCPOMATIC_ASSERT (false);
93 EmptyVideo::done () const
96 for (auto i: _periods) {
97 latest = max (latest, i.to);
100 return _position >= latest;