2 Copyright (C) 2014-2021 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.
42 #include "picture_asset.h"
43 #include "mono_picture_asset.h"
44 #include "stereo_picture_asset.h"
45 #include "sound_asset.h"
46 #include "subtitle_asset.h"
47 #include "reel_mono_picture_asset.h"
48 #include "reel_stereo_picture_asset.h"
49 #include "reel_sound_asset.h"
50 #include "reel_subtitle_asset.h"
51 #include "reel_markers_asset.h"
52 #include "decrypted_kdm_key.h"
53 #include "decrypted_kdm.h"
54 #include "interop_subtitle_asset.h"
55 #include "smpte_subtitle_asset.h"
56 #include "reel_atmos_asset.h"
57 #include "reel_closed_caption_asset.h"
58 #include <libxml++/nodes/element.h>
65 using std::make_shared;
66 using std::shared_ptr;
67 using std::dynamic_pointer_cast;
72 Reel::Reel (std::shared_ptr<const cxml::Node> node)
73 : Object (remove_urn_uuid (node->string_child ("Id")))
75 auto asset_list = node->node_child ("AssetList");
77 auto main_picture = asset_list->optional_node_child ("MainPicture");
79 _main_picture = make_shared<ReelMonoPictureAsset>(main_picture);
82 auto main_stereoscopic_picture = asset_list->optional_node_child ("MainStereoscopicPicture");
83 if (main_stereoscopic_picture) {
84 _main_picture = make_shared<ReelStereoPictureAsset>(main_stereoscopic_picture);
87 auto main_sound = asset_list->optional_node_child ("MainSound");
89 _main_sound = make_shared<ReelSoundAsset>(main_sound);
92 auto main_subtitle = asset_list->optional_node_child ("MainSubtitle");
94 _main_subtitle = make_shared<ReelSubtitleAsset>(main_subtitle);
97 auto main_markers = asset_list->optional_node_child ("MainMarkers");
99 _main_markers = make_shared<ReelMarkersAsset>(main_markers);
102 /* XXX: it's not ideal that we silently tolerate Interop or SMPTE nodes here */
103 /* XXX: not sure if Interop supports multiple closed captions */
104 auto closed_captions = asset_list->node_children ("MainClosedCaption");
105 if (closed_captions.empty()) {
106 closed_captions = asset_list->node_children ("ClosedCaption");
108 for (auto i: closed_captions) {
109 _closed_captions.push_back (make_shared<ReelClosedCaptionAsset>(i));
112 auto atmos = asset_list->optional_node_child ("AuxData");
114 _atmos = make_shared<ReelAtmosAsset>(atmos);
117 node->ignore_child ("AnnotationText");
123 Reel::write_to_cpl (xmlpp::Element* node, Standard standard) const
125 auto reel = node->add_child ("Reel");
126 reel->add_child("Id")->add_child_text("urn:uuid:" + _id);
127 xmlpp::Element* asset_list = reel->add_child ("AssetList");
130 _main_markers->write_to_cpl (asset_list, standard);
133 if (_main_picture && dynamic_pointer_cast<ReelMonoPictureAsset> (_main_picture)) {
134 /* Mono pictures come before other stuff... */
135 _main_picture->write_to_cpl (asset_list, standard);
139 _main_sound->write_to_cpl (asset_list, standard);
142 if (_main_subtitle) {
143 _main_subtitle->write_to_cpl (asset_list, standard);
146 for (auto i: _closed_captions) {
147 i->write_to_cpl (asset_list, standard);
150 if (_main_picture && dynamic_pointer_cast<ReelStereoPictureAsset> (_main_picture)) {
151 /* ... but stereo pictures must come after */
152 _main_picture->write_to_cpl (asset_list, standard);
156 _atmos->write_to_cpl (asset_list, standard);
164 Reel::equals (std::shared_ptr<const Reel> other, EqualityOptions opt, NoteHandler note) const
166 if ((_main_picture && !other->_main_picture) || (!_main_picture && other->_main_picture)) {
167 note (NoteType::ERROR, "Reel: picture assets differ");
171 if (_main_picture && !_main_picture->equals (other->_main_picture, opt, note)) {
175 if ((_main_sound && !other->_main_sound) || (!_main_sound && other->_main_sound)) {
176 note (NoteType::ERROR, "Reel: sound assets differ");
180 if (_main_sound && !_main_sound->equals (other->_main_sound, opt, note)) {
184 if ((_main_subtitle && !other->_main_subtitle) || (!_main_subtitle && other->_main_subtitle)) {
185 note (NoteType::ERROR, "Reel: subtitle assets differ");
189 if (_main_subtitle && !_main_subtitle->equals (other->_main_subtitle, opt, note)) {
193 if ((_main_markers && !other->_main_markers) || (!_main_markers && other->_main_markers)) {
194 note (NoteType::ERROR, "Reel: one has markers and the other does not");
198 if (_main_markers && !_main_markers->equals(other->_main_markers, opt, note)) {
199 note (NoteType::ERROR, "Reel: marker assets differ");
203 if (_closed_captions.size() != other->_closed_captions.size()) {
207 auto i = _closed_captions.begin();
208 auto j = other->_closed_captions.begin();
209 while (i != _closed_captions.end()) {
210 if (!(*i)->equals(*j, opt, note)) {
217 if ((_atmos && !other->_atmos) || (!_atmos && other->_atmos)) {
218 note (NoteType::ERROR, "Reel: atmos assets differ");
222 if (_atmos && !_atmos->equals (other->_atmos, opt, note)) {
231 Reel::any_encrypted () const
234 for (auto i: _closed_captions) {
235 if (i->encrypted()) {
241 (_main_picture && _main_picture->encrypted()) ||
242 (_main_sound && _main_sound->encrypted()) ||
243 (_main_subtitle && _main_subtitle->encrypted()) ||
245 (_atmos && _atmos->encrypted())
251 Reel::all_encrypted () const
254 for (auto i: _closed_captions) {
255 if (!i->encrypted()) {
261 (!_main_picture || _main_picture->encrypted()) &&
262 (!_main_sound || _main_sound->encrypted()) &&
263 (!_main_subtitle || _main_subtitle->encrypted()) &&
265 (!_atmos || _atmos->encrypted())
271 Reel::add (DecryptedKDM const & kdm)
273 auto keys = kdm.keys ();
275 for (auto const& i: keys) {
276 if (_main_picture && i.id() == _main_picture->key_id()) {
277 _main_picture->asset()->set_key (i.key());
279 if (_main_sound && i.id() == _main_sound->key_id()) {
280 _main_sound->asset()->set_key (i.key());
282 if (_main_subtitle && i.id() == _main_subtitle->key_id()) {
283 shared_ptr<SMPTESubtitleAsset> s = dynamic_pointer_cast<SMPTESubtitleAsset> (_main_subtitle->asset());
285 s->set_key (i.key());
288 for (auto j: _closed_captions) {
289 if (i.id() == j->key_id()) {
290 auto s = dynamic_pointer_cast<SMPTESubtitleAsset> (j->asset());
292 s->set_key (i.key());
296 if (_atmos && i.id() == _atmos->key_id()) {
297 _atmos->asset()->set_key (i.key());
304 Reel::add (shared_ptr<ReelAsset> asset)
306 auto p = dynamic_pointer_cast<ReelPictureAsset> (asset);
307 auto so = dynamic_pointer_cast<ReelSoundAsset> (asset);
308 auto su = dynamic_pointer_cast<ReelSubtitleAsset> (asset);
309 auto m = dynamic_pointer_cast<ReelMarkersAsset> (asset);
310 auto c = dynamic_pointer_cast<ReelClosedCaptionAsset> (asset);
311 auto a = dynamic_pointer_cast<ReelAtmosAsset> (asset);
321 _closed_captions.push_back (c);
328 vector<shared_ptr<ReelAsset>>
329 Reel::assets () const
331 vector<shared_ptr<ReelAsset>> a;
333 a.push_back (_main_picture);
336 a.push_back (_main_sound);
338 if (_main_subtitle) {
339 a.push_back (_main_subtitle);
341 std::copy (_closed_captions.begin(), _closed_captions.end(), back_inserter(a));
343 a.push_back (_atmos);
350 Reel::resolve_refs (vector<shared_ptr<Asset>> assets)
353 _main_picture->asset_ref().resolve(assets);
357 _main_sound->asset_ref().resolve(assets);
360 if (_main_subtitle) {
361 _main_subtitle->asset_ref().resolve(assets);
363 /* Interop subtitle handling is all special cases */
364 if (_main_subtitle->asset_ref().resolved()) {
365 auto iop = dynamic_pointer_cast<InteropSubtitleAsset> (_main_subtitle->asset_ref().asset());
367 iop->resolve_fonts (assets);
372 for (auto i: _closed_captions) {
373 i->asset_ref().resolve(assets);
375 /* Interop subtitle handling is all special cases */
376 if (i->asset_ref().resolved()) {
377 auto iop = dynamic_pointer_cast<InteropSubtitleAsset> (i->asset_ref().asset());
379 iop->resolve_fonts (assets);
385 _atmos->asset_ref().resolve (assets);
391 Reel::duration () const
394 return _main_picture->actual_duration();
397 int64_t d = INT64_MAX;
400 d = min (d, _main_sound->actual_duration());
402 if (_main_subtitle) {
403 d = min (d, _main_subtitle->actual_duration());
406 d = min (d, _main_markers->actual_duration());
408 for (auto i: _closed_captions) {
409 d = min (d, i->actual_duration());
412 d = min (d, _atmos->actual_duration());
415 DCP_ASSERT (d < INT64_MAX);