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"
28 #include "font_id_allocator.h"
30 #include "text_content.h"
34 #include <dcp/decrypted_kdm.h>
35 #include <dcp/mono_picture_asset.h>
36 #include <dcp/mono_picture_asset_reader.h>
37 #include <dcp/mono_picture_frame.h>
39 #include <dcp/reel_atmos_asset.h>
40 #include <dcp/reel_closed_caption_asset.h>
41 #include <dcp/reel_markers_asset.h>
42 #include <dcp/reel_picture_asset.h>
43 #include <dcp/reel_sound_asset.h>
44 #include <dcp/reel_subtitle_asset.h>
45 #include <dcp/search.h>
46 #include <dcp/sound_asset.h>
47 #include <dcp/sound_asset.h>
48 #include <dcp/sound_asset_reader.h>
49 #include <dcp/stereo_picture_asset.h>
50 #include <dcp/stereo_picture_asset_reader.h>
51 #include <dcp/stereo_picture_frame.h>
52 #include <dcp/subtitle_asset.h>
59 using std::dynamic_pointer_cast;
60 using std::make_shared;
61 using std::shared_ptr;
64 using boost::optional;
67 DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
69 shared_ptr<dcp::CPL> selected_cpl;
71 auto cpls = dcp::find_and_resolve_cpls (content->directories(), tolerant);
73 if (content->cpl ()) {
74 /* Use the CPL that was specified, or that the content was using before */
75 auto iter = std::find_if(cpls.begin(), cpls.end(), [content](shared_ptr<dcp::CPL> cpl) { return cpl->id() == content->cpl().get(); });
76 if (iter == cpls.end()) {
77 throw CPLNotFoundError(content->cpl().get());
81 /* Choose the CPL with the fewest unsatisfied references */
83 int least_unsatisfied = INT_MAX;
85 for (auto cpl: cpls) {
87 for (auto const& reel: cpl->reels()) {
88 if (reel->main_picture() && !reel->main_picture()->asset_ref().resolved()) {
91 if (reel->main_sound() && !reel->main_sound()->asset_ref().resolved()) {
94 if (reel->main_subtitle() && !reel->main_subtitle()->asset_ref().resolved()) {
97 if (reel->atmos() && !reel->atmos()->asset_ref().resolved()) {
102 if (unsatisfied < least_unsatisfied) {
103 least_unsatisfied = unsatisfied;
110 throw DCPError ("No CPLs found in DCP");
113 if (content->kdm()) {
114 selected_cpl->add(decrypt_kdm_with_helpful_error(content->kdm().get()));
117 _cpl = selected_cpl->id();
118 _name = selected_cpl->content_title_text();
119 _content_kind = selected_cpl->content_kind();
121 LOG_GENERAL ("Selected CPL %1", _cpl);
123 auto try_to_parse_language = [](optional<string> lang) -> boost::optional<dcp::LanguageTag> {
126 return dcp::LanguageTag (*lang);
132 LOG_GENERAL("Looking at %1 reels", selected_cpl->reels().size());
135 for (auto reel: selected_cpl->reels()) {
136 LOG_GENERAL("Reel %1", reel->id());
138 if (reel->main_picture()) {
139 /* This will mean a VF can be displayed in the timeline even if its picture asset
140 * is yet be resolved.
143 _video_length += reel->main_picture()->actual_duration();
145 if (!reel->main_picture()->asset_ref().resolved()) {
146 LOG_GENERAL("Main picture %1 of reel %2 is missing", reel->main_picture()->id(), reel->id());
147 _needs_assets = true;
149 LOG_GENERAL("Main picture %1 of reel %2 found", reel->main_picture()->id(), reel->id());
151 auto const frac = reel->main_picture()->edit_rate();
152 float const fr = float(frac.numerator) / frac.denominator;
153 if (!_video_frame_rate) {
154 _video_frame_rate = fr;
155 } else if (_video_frame_rate.get() != fr) {
156 throw DCPError (_("Mismatched frame rates in DCP"));
159 auto asset = reel->main_picture()->asset();
161 _video_size = asset->size ();
162 } else if (_video_size.get() != asset->size ()) {
163 throw DCPError (_("Mismatched video sizes in DCP"));
168 if (reel->main_sound()) {
170 _audio_length += reel->main_sound()->actual_duration();
172 if (!reel->main_sound()->asset_ref().resolved()) {
173 LOG_GENERAL("Main sound %1 of reel %2 is missing", reel->main_sound()->id(), reel->id());
174 _needs_assets = true;
176 LOG_GENERAL("Main sound %1 of reel %2 found", reel->main_sound()->id(), reel->id());
178 auto asset = reel->main_sound()->asset();
180 if (!_audio_channels) {
181 _audio_channels = asset->channels();
182 } else if (_audio_channels.get() != asset->channels()) {
183 throw DCPError (_("Mismatched audio channel counts in DCP"));
186 _active_audio_channels = std::max(_active_audio_channels.get_value_or(0), asset->active_channels());
188 if (!_audio_frame_rate) {
189 _audio_frame_rate = asset->sampling_rate ();
190 } else if (_audio_frame_rate.get() != asset->sampling_rate ()) {
191 throw DCPError (_("Mismatched audio sample rates in DCP"));
194 _audio_language = try_to_parse_language (asset->language());
198 if (reel->main_subtitle()) {
199 if (!reel->main_subtitle()->asset_ref().resolved()) {
200 LOG_GENERAL("Main subtitle %1 of reel %2 is missing", reel->main_subtitle()->id(), reel->id());
201 _needs_assets = true;
203 LOG_GENERAL("Main subtitle %1 of reel %2 found", reel->main_subtitle()->id(), reel->id());
205 _text_count[TextType::OPEN_SUBTITLE] = 1;
206 _open_subtitle_language = try_to_parse_language(reel->main_subtitle()->language());
208 auto asset = reel->main_subtitle()->asset();
209 for (auto const& font: asset->font_data()) {
210 _fonts.push_back({reel_index, asset->id(), make_shared<dcpomatic::Font>(font.first, font.second)});
215 _text_count[TextType::CLOSED_CAPTION] = std::max(_text_count[TextType::CLOSED_CAPTION], static_cast<int>(reel->closed_captions().size()));
216 if (_dcp_text_tracks.size() < reel->closed_captions().size()) {
217 /* We only want to add 1 DCPTextTrack to _dcp_text_tracks per closed caption. I guess it's possible that different
218 * reels have different numbers of tracks (though I don't think they should) so make sure that _dcp_text_tracks ends
219 * up with the maximum.
221 _dcp_text_tracks.clear();
222 for (auto ccap: reel->closed_captions()) {
223 _dcp_text_tracks.push_back(DCPTextTrack(ccap->annotation_text().get_value_or(""), try_to_parse_language(ccap->language())));
227 for (auto ccap: reel->closed_captions()) {
228 if (!ccap->asset_ref().resolved()) {
229 LOG_GENERAL("Closed caption %1 of reel %2 is missing", ccap->id(), reel->id());
230 _needs_assets = true;
232 LOG_GENERAL("Closed caption %1 of reel %2 found", ccap->id(), reel->id());
234 auto asset = ccap->asset();
235 for (auto const& font: asset->font_data()) {
236 _fonts.push_back({reel_index, asset->id(), make_shared<dcpomatic::Font>(font.first, font.second)});
241 if (reel->main_markers ()) {
242 auto rm = reel->main_markers()->get();
243 _markers.insert (rm.begin(), rm.end());
248 _atmos_length += reel->atmos()->actual_duration();
249 if (_atmos_edit_rate != dcp::Fraction()) {
250 DCPOMATIC_ASSERT(reel->atmos()->edit_rate() == _atmos_edit_rate);
252 _atmos_edit_rate = reel->atmos()->edit_rate();
255 if (reel->main_picture()) {
256 _reel_lengths.push_back(reel->main_picture()->actual_duration());
257 } else if (reel->main_sound()) {
258 _reel_lengths.push_back(reel->main_sound()->actual_duration());
259 } else if (reel->main_subtitle()) {
260 _reel_lengths.push_back(reel->main_subtitle()->actual_duration());
261 } else if (!reel->closed_captions().empty()) {
262 _reel_lengths.push_back(reel->closed_captions().front()->actual_duration());
263 } else if (!reel->atmos()) {
264 _reel_lengths.push_back(reel->atmos()->actual_duration());
270 _encrypted = selected_cpl->any_encrypted();
273 LOG_GENERAL_NC ("Check that everything encrypted has a key");
275 /* Check first that anything encrypted has a key. We must do this, as if we try to
276 * read encrypted data with asdcplib without even offering a key it will just return
277 * the encrypted data. Secondly, check that we can read the first thing from each
278 * asset in each reel. This checks that when we do have a key it's the right one.
281 for (auto i: selected_cpl->reels()) {
282 LOG_GENERAL ("Reel %1", i->id());
283 if (i->main_picture() && i->main_picture()->asset_ref().resolved()) {
284 auto pic = i->main_picture()->asset();
285 if (pic->encrypted() && !pic->key()) {
287 LOG_GENERAL_NC ("Picture has no key");
290 auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset>(pic);
291 auto stereo = dynamic_pointer_cast<dcp::StereoPictureAsset>(pic);
294 auto reader = mono->start_read();
295 reader->set_check_hmac (false);
296 reader->get_frame(0)->xyz_image();
298 auto reader = stereo->start_read();
299 reader->set_check_hmac (false);
300 reader->get_frame(0)->xyz_image(dcp::Eye::LEFT);
304 if (i->main_sound() && i->main_sound()->asset_ref().resolved()) {
305 auto sound = i->main_sound()->asset();
306 if (sound->encrypted() && !sound->key()) {
308 LOG_GENERAL_NC ("Sound has no key");
311 auto reader = sound->start_read();
312 reader->set_check_hmac (false);
313 reader->get_frame(0);
316 if (i->main_subtitle() && i->main_subtitle()->asset_ref().resolved()) {
317 auto sub = i->main_subtitle()->asset();
318 auto mxf_sub = dynamic_pointer_cast<dcp::MXF>(sub);
319 if (mxf_sub && mxf_sub->encrypted() && !mxf_sub->key()) {
321 LOG_GENERAL_NC ("Subtitle has no key");
327 if (i->atmos() && i->atmos()->asset_ref().resolved()) {
328 if (auto atmos = i->atmos()->asset()) {
329 if (atmos->encrypted() && !atmos->key()) {
331 LOG_GENERAL_NC ("ATMOS sound has no key");
334 auto reader = atmos->start_read();
335 reader->set_check_hmac (false);
336 reader->get_frame(0);
340 } catch (dcp::ReadError& e) {
342 LOG_GENERAL ("KDM is invalid: %1", e.what());
343 } catch (dcp::MiscError& e) {
345 LOG_GENERAL ("KDM is invalid: %1", e.what());
348 _standard = selected_cpl->standard();
349 if (!selected_cpl->reels().empty()) {
350 auto first_reel = selected_cpl->reels()[0];
351 _three_d = first_reel->main_picture() && first_reel->main_picture()->asset_ref().resolved() && dynamic_pointer_cast<dcp::StereoPictureAsset>(first_reel->main_picture()->asset());
353 _ratings = selected_cpl->ratings();
354 for (auto version: selected_cpl->content_versions()) {
355 _content_versions.push_back(version.label_text);
358 _cpl = selected_cpl->id();
363 DCPExaminer::add_fonts(shared_ptr<TextContent> content)
365 FontIDAllocator font_id_allocator;
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);
379 if (!font_id_allocator.has_default_font()) {
380 content->add_font(make_shared<dcpomatic::Font>(font_id_allocator.default_font_id(), default_font_file()));