2 Copyright (C) 2014-2021 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 "constants.h"
24 #include "dcp_content.h"
25 #include "dcp_examiner.h"
26 #include "dcpomatic_log.h"
27 #include "exceptions.h"
29 #include "text_content.h"
33 #include <dcp/decrypted_kdm.h>
34 #include <dcp/mono_picture_asset.h>
35 #include <dcp/mono_picture_asset_reader.h>
36 #include <dcp/mono_picture_frame.h>
38 #include <dcp/reel_atmos_asset.h>
39 #include <dcp/reel_closed_caption_asset.h>
40 #include <dcp/reel_markers_asset.h>
41 #include <dcp/reel_picture_asset.h>
42 #include <dcp/reel_sound_asset.h>
43 #include <dcp/reel_subtitle_asset.h>
44 #include <dcp/search.h>
45 #include <dcp/sound_asset.h>
46 #include <dcp/sound_asset.h>
47 #include <dcp/sound_asset_reader.h>
48 #include <dcp/stereo_picture_asset.h>
49 #include <dcp/stereo_picture_asset_reader.h>
50 #include <dcp/stereo_picture_frame.h>
51 #include <dcp/subtitle_asset.h>
58 using std::dynamic_pointer_cast;
59 using std::make_shared;
60 using std::shared_ptr;
63 using boost::optional;
66 DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
68 shared_ptr<dcp::CPL> selected_cpl;
70 auto cpls = dcp::find_and_resolve_cpls (content->directories(), tolerant);
72 if (content->cpl ()) {
73 /* Use the CPL that was specified, or that the content was using before */
74 auto iter = std::find_if(cpls.begin(), cpls.end(), [content](shared_ptr<dcp::CPL> cpl) { return cpl->id() == content->cpl().get(); });
75 if (iter == cpls.end()) {
76 throw CPLNotFoundError(content->cpl().get());
80 /* Choose the CPL with the fewest unsatisfied references */
82 int least_unsatisfied = INT_MAX;
84 for (auto cpl: cpls) {
86 for (auto const& reel: cpl->reels()) {
87 if (reel->main_picture() && !reel->main_picture()->asset_ref().resolved()) {
90 if (reel->main_sound() && !reel->main_sound()->asset_ref().resolved()) {
93 if (reel->main_subtitle() && !reel->main_subtitle()->asset_ref().resolved()) {
96 if (reel->atmos() && !reel->atmos()->asset_ref().resolved()) {
101 if (unsatisfied < least_unsatisfied) {
102 least_unsatisfied = unsatisfied;
109 throw DCPError ("No CPLs found in DCP");
112 if (content->kdm()) {
113 selected_cpl->add(decrypt_kdm_with_helpful_error(content->kdm().get()));
116 _cpl = selected_cpl->id();
117 _name = selected_cpl->content_title_text();
118 _content_kind = selected_cpl->content_kind();
120 LOG_GENERAL ("Selected CPL %1", _cpl);
122 auto try_to_parse_language = [](optional<string> lang) -> boost::optional<dcp::LanguageTag> {
125 return dcp::LanguageTag (*lang);
131 LOG_GENERAL("Looking at %1 reels", selected_cpl->reels().size());
134 for (auto reel: selected_cpl->reels()) {
135 LOG_GENERAL("Reel %1", reel->id());
137 if (reel->main_picture()) {
138 if (!reel->main_picture()->asset_ref().resolved()) {
139 /* We are missing this asset so we can't continue; examination will be repeated later */
140 _needs_assets = true;
141 LOG_GENERAL("Main picture %1 of reel %2 is missing", reel->main_picture()->id(), reel->id());
145 LOG_GENERAL("Main picture %1 of reel %2 found", reel->main_picture()->id(), reel->id());
147 auto const frac = reel->main_picture()->edit_rate();
148 float const fr = float(frac.numerator) / frac.denominator;
149 if (!_video_frame_rate) {
150 _video_frame_rate = fr;
151 } else if (_video_frame_rate.get() != fr) {
152 throw DCPError (_("Mismatched frame rates in DCP"));
156 auto asset = reel->main_picture()->asset();
158 _video_size = asset->size ();
159 } else if (_video_size.get() != asset->size ()) {
160 throw DCPError (_("Mismatched video sizes in DCP"));
163 _video_length += reel->main_picture()->actual_duration();
166 if (reel->main_sound()) {
167 if (!reel->main_sound()->asset_ref().resolved()) {
168 /* We are missing this asset so we can't continue; examination will be repeated later */
169 _needs_assets = true;
170 LOG_GENERAL("Main sound %1 of reel %2 is missing", reel->main_sound()->id(), reel->id());
174 LOG_GENERAL("Main sound %1 of reel %2 found", reel->main_sound()->id(), reel->id());
177 auto asset = reel->main_sound()->asset();
179 if (!_audio_channels) {
180 _audio_channels = asset->channels();
181 } else if (_audio_channels.get() != asset->channels()) {
182 throw DCPError (_("Mismatched audio channel counts in DCP"));
185 _active_audio_channels = std::max(_active_audio_channels.get_value_or(0), asset->active_channels());
187 if (!_audio_frame_rate) {
188 _audio_frame_rate = asset->sampling_rate ();
189 } else if (_audio_frame_rate.get() != asset->sampling_rate ()) {
190 throw DCPError (_("Mismatched audio sample rates in DCP"));
193 _audio_length += reel->main_sound()->actual_duration();
194 _audio_language = try_to_parse_language (asset->language());
197 if (reel->main_subtitle()) {
198 if (!reel->main_subtitle()->asset_ref().resolved()) {
199 /* We are missing this asset so we can't continue; examination will be repeated later */
200 _needs_assets = true;
201 LOG_GENERAL("Main subtitle %1 of reel %2 is missing", reel->main_subtitle()->id(), reel->id());
205 LOG_GENERAL("Main subtitle %1 of reel %2 found", reel->main_subtitle()->id(), reel->id());
207 _text_count[TextType::OPEN_SUBTITLE] = 1;
208 _open_subtitle_language = try_to_parse_language(reel->main_subtitle()->language());
210 auto asset = reel->main_subtitle()->asset();
211 for (auto const& font: asset->font_data()) {
212 _fonts.push_back({reel_index, asset->id(), make_shared<dcpomatic::Font>(font.first, font.second)});
214 _fonts.push_back({reel_index, asset->id(), make_shared<dcpomatic::Font>("")});
217 _text_count[TextType::CLOSED_CAPTION] = std::max(_text_count[TextType::CLOSED_CAPTION], static_cast<int>(reel->closed_captions().size()));
218 if (_dcp_text_tracks.size() < reel->closed_captions().size()) {
219 /* We only want to add 1 DCPTextTrack to _dcp_text_tracks per closed caption. I guess it's possible that different
220 * reels have different numbers of tracks (though I don't think they should) so make sure that _dcp_text_tracks ends
221 * up with the maximum.
223 _dcp_text_tracks.clear();
224 for (auto ccap: reel->closed_captions()) {
225 _dcp_text_tracks.push_back(DCPTextTrack(ccap->annotation_text().get_value_or(""), try_to_parse_language(ccap->language())));
229 for (auto ccap: reel->closed_captions()) {
230 if (!ccap->asset_ref().resolved()) {
231 /* We are missing this asset so we can't continue; examination will be repeated later */
232 _needs_assets = true;
233 LOG_GENERAL("Closed caption %1 of reel %2 is missing", ccap->id(), reel->id());
237 LOG_GENERAL("Closed caption %1 of reel %2 found", ccap->id(), reel->id());
239 auto asset = ccap->asset();
240 for (auto const& font: asset->font_data()) {
241 _fonts.push_back({reel_index, asset->id(), make_shared<dcpomatic::Font>(font.first, font.second)});
243 if (asset->font_data().empty()) {
244 _fonts.push_back({reel_index, asset->id(), make_shared<dcpomatic::Font>("")});
248 if (reel->main_markers ()) {
249 auto rm = reel->main_markers()->get();
250 _markers.insert (rm.begin(), rm.end());
255 _atmos_length += reel->atmos()->actual_duration();
256 if (_atmos_edit_rate != dcp::Fraction()) {
257 DCPOMATIC_ASSERT(reel->atmos()->edit_rate() == _atmos_edit_rate);
259 _atmos_edit_rate = reel->atmos()->edit_rate();
262 if (reel->main_picture()) {
263 _reel_lengths.push_back(reel->main_picture()->actual_duration());
264 } else if (reel->main_sound()) {
265 _reel_lengths.push_back(reel->main_sound()->actual_duration());
266 } else if (reel->main_subtitle()) {
267 _reel_lengths.push_back(reel->main_subtitle()->actual_duration());
268 } else if (!reel->closed_captions().empty()) {
269 _reel_lengths.push_back(reel->closed_captions().front()->actual_duration());
270 } else if (!reel->atmos()) {
271 _reel_lengths.push_back(reel->atmos()->actual_duration());
277 _encrypted = selected_cpl->any_encrypted();
280 LOG_GENERAL_NC ("Check that everything encrypted has a key");
282 /* Check first that anything encrypted has a key. We must do this, as if we try to
283 * read encrypted data with asdcplib without even offering a key it will just return
284 * the encrypted data. Secondly, check that we can read the first thing from each
285 * asset in each reel. This checks that when we do have a key it's the right one.
288 for (auto i: selected_cpl->reels()) {
289 LOG_GENERAL ("Reel %1", i->id());
290 auto pic = i->main_picture()->asset();
291 if (pic->encrypted() && !pic->key()) {
293 LOG_GENERAL_NC ("Picture has no key");
296 auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset>(pic);
297 auto stereo = dynamic_pointer_cast<dcp::StereoPictureAsset>(pic);
300 auto reader = mono->start_read();
301 reader->set_check_hmac (false);
302 reader->get_frame(0)->xyz_image();
304 auto reader = stereo->start_read();
305 reader->set_check_hmac (false);
306 reader->get_frame(0)->xyz_image(dcp::Eye::LEFT);
309 if (i->main_sound()) {
310 auto sound = i->main_sound()->asset ();
311 if (sound->encrypted() && !sound->key()) {
313 LOG_GENERAL_NC ("Sound has no key");
316 auto reader = i->main_sound()->asset()->start_read();
317 reader->set_check_hmac (false);
318 reader->get_frame(0);
321 if (i->main_subtitle()) {
322 auto sub = i->main_subtitle()->asset();
323 auto mxf_sub = dynamic_pointer_cast<dcp::MXF>(sub);
324 if (mxf_sub && mxf_sub->encrypted() && !mxf_sub->key()) {
326 LOG_GENERAL_NC ("Subtitle has no key");
333 auto atmos = i->atmos()->asset();
334 if (atmos->encrypted() && !atmos->key()) {
336 LOG_GENERAL_NC ("ATMOS sound has no key");
339 auto reader = atmos->start_read();
340 reader->set_check_hmac (false);
341 reader->get_frame(0);
344 } catch (dcp::ReadError& e) {
346 LOG_GENERAL ("KDM is invalid: %1", e.what());
347 } catch (dcp::MiscError& e) {
349 LOG_GENERAL ("KDM is invalid: %1", e.what());
352 _standard = selected_cpl->standard();
353 _three_d = !selected_cpl->reels().empty() && selected_cpl->reels().front()->main_picture() &&
354 dynamic_pointer_cast<dcp::StereoPictureAsset>(selected_cpl->reels().front()->main_picture()->asset());
355 _ratings = selected_cpl->ratings();
356 for (auto version: selected_cpl->content_versions()) {
357 _content_versions.push_back(version.label_text);
360 _cpl = selected_cpl->id();
365 DCPExaminer::add_fonts(shared_ptr<TextContent> content)
367 for (auto const& font: _fonts) {
368 _font_id_allocator.add_font(font.reel_index, font.asset_id, font.font->id());
371 _font_id_allocator.allocate();
373 for (auto const& font: _fonts) {
374 auto font_copy = make_shared<dcpomatic::Font>(*font.font);
375 font_copy->set_id(_font_id_allocator.font_id(font.reel_index, font.asset_id, font.font->id()));
376 content->add_font(font_copy);