2 Copyright (C) 2014-2022 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp 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 libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
35 /** @file src/reel_asset.cc
36 * @brief ReelAsset class
41 #include "compose.hpp"
42 #include "dcp_assert.h"
43 #include "equality_options.h"
44 #include "raw_convert.h"
45 #include "reel_asset.h"
47 #include <libcxml/cxml.h>
48 LIBDCP_DISABLE_WARNINGS
49 #include <libxml++/libxml++.h>
50 LIBDCP_ENABLE_WARNINGS
55 using std::shared_ptr;
57 using boost::optional;
61 ReelAsset::ReelAsset (string id, Fraction edit_rate, int64_t intrinsic_duration, optional<int64_t> entry_point)
63 , _intrinsic_duration (intrinsic_duration)
64 , _edit_rate (edit_rate)
65 , _entry_point (entry_point)
68 _duration = intrinsic_duration - *_entry_point;
71 DCP_ASSERT (!_entry_point || *_entry_point <= _intrinsic_duration);
75 ReelAsset::ReelAsset (shared_ptr<const cxml::Node> node)
76 : Object (remove_urn_uuid (node->string_child ("Id")))
77 , _intrinsic_duration (node->number_child<int64_t> ("IntrinsicDuration"))
78 , _duration (node->optional_number_child<int64_t>("Duration"))
79 , _annotation_text (node->optional_string_child("AnnotationText"))
80 , _edit_rate (Fraction (node->string_child ("EditRate")))
81 , _entry_point (node->optional_number_child<int64_t>("EntryPoint"))
88 ReelAsset::write_to_cpl (xmlpp::Node* node, Standard standard) const
90 auto a = node->add_child (cpl_node_name (standard));
91 auto const attr = cpl_node_attribute (standard);
92 if (!attr.first.empty ()) {
93 a->set_attribute (attr.first, attr.second);
95 auto const ns = cpl_node_namespace ();
96 if (!ns.first.empty()) {
97 a->set_namespace_declaration (ns.first, ns.second);
99 a->add_child("Id")->add_child_text ("urn:uuid:" + _id);
100 /* Empty <AnnotationText> tags cause refusal to play on some Sony SRX320 / LMT3000 systems (DoM bug #2124) */
101 if (_annotation_text && !_annotation_text->empty()) {
102 a->add_child("AnnotationText")->add_child_text(*_annotation_text);
104 a->add_child("EditRate")->add_child_text (_edit_rate.as_string());
105 a->add_child("IntrinsicDuration")->add_child_text (raw_convert<string> (_intrinsic_duration));
107 a->add_child("EntryPoint")->add_child_text(raw_convert<string>(*_entry_point));
110 a->add_child("Duration")->add_child_text(raw_convert<string>(*_duration));
117 ReelAsset::cpl_node_attribute (Standard) const
119 return make_pair ("", "");
124 ReelAsset::cpl_node_namespace () const
126 return make_pair ("", "");
132 optional_to_string (optional<T> o)
134 return o ? raw_convert<string>(*o) : "[none]";
139 ReelAsset::asset_equals(shared_ptr<const ReelAsset> other, EqualityOptions const& opt, NoteHandler note) const
141 auto const node = cpl_node_name(Standard::SMPTE);
143 if (_annotation_text != other->_annotation_text) {
144 string const s = String::compose("Reel %1: annotation texts differ (%2 vs %3)", node, optional_to_string(_annotation_text), optional_to_string(other->_annotation_text));
145 if (!opt.reel_annotation_texts_can_differ) {
146 note (NoteType::ERROR, s);
149 note (NoteType::NOTE, s);
153 if (_edit_rate != other->_edit_rate) {
156 String::compose("Reel %1: edit rates differ (%2 vs %3)", node, _edit_rate.as_string(), other->_edit_rate.as_string())
161 if (_intrinsic_duration != other->_intrinsic_duration) {
164 String::compose("Reel %1: intrinsic durations differ (%2 vs %3)", node, _intrinsic_duration, other->_intrinsic_duration)
169 if (_entry_point != other->_entry_point) {
172 String::compose("Reel %1: entry points differ (%2 vs %3)", node, optional_to_string(_entry_point), optional_to_string(other->_entry_point))
177 if (_duration != other->_duration) {
180 String::compose("Reel %1: durations differ (%2 vs %3)", node, optional_to_string(_duration), optional_to_string(other->_duration))
190 ReelAsset::actual_duration () const
196 return _intrinsic_duration - _entry_point.get_value_or(0);