2 Copyright (C) 2014-2020 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/>.
21 #include "dcp_examiner.h"
22 #include "dcp_content.h"
23 #include "exceptions.h"
28 #include <dcp/decrypted_kdm.h>
31 #include <dcp/reel_picture_asset.h>
32 #include <dcp/reel_sound_asset.h>
33 #include <dcp/mono_picture_asset.h>
34 #include <dcp/mono_picture_asset_reader.h>
35 #include <dcp/mono_picture_frame.h>
36 #include <dcp/stereo_picture_asset.h>
37 #include <dcp/stereo_picture_asset_reader.h>
38 #include <dcp/stereo_picture_frame.h>
39 #include <dcp/sound_asset.h>
40 #include <dcp/sound_asset_reader.h>
41 #include <dcp/subtitle_asset.h>
42 #include <dcp/reel_atmos_asset.h>
43 #include <dcp/reel_subtitle_asset.h>
44 #include <dcp/reel_closed_caption_asset.h>
45 #include <dcp/reel_markers_asset.h>
46 #include <dcp/sound_asset.h>
53 using std::runtime_error;
55 using std::shared_ptr;
56 using std::dynamic_pointer_cast;
58 DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
59 : DCP (content, tolerant)
61 shared_ptr<dcp::CPL> cpl;
63 for (int i = 0; i < static_cast<int>(TextType::COUNT); ++i) {
67 if (content->cpl ()) {
68 /* Use the CPL that the content was using before */
69 for (auto i: cpls()) {
70 if (i->id() == content->cpl().get()) {
75 /* Choose the CPL with the fewest unsatisfied references */
77 int least_unsatisfied = INT_MAX;
79 for (auto i: cpls()) {
81 for (auto j: i->reels()) {
82 if (j->main_picture() && !j->main_picture()->asset_ref().resolved()) {
85 if (j->main_sound() && !j->main_sound()->asset_ref().resolved()) {
88 if (j->main_subtitle() && !j->main_subtitle()->asset_ref().resolved()) {
91 if (j->atmos() && !j->atmos()->asset_ref().resolved()) {
96 if (unsatisfied < least_unsatisfied) {
97 least_unsatisfied = unsatisfied;
104 throw DCPError ("No CPLs found in DCP");
108 _name = cpl->content_title_text ();
109 _content_kind = cpl->content_kind ();
111 for (auto i: cpl->reels()) {
113 if (i->main_picture ()) {
114 if (!i->main_picture()->asset_ref().resolved()) {
115 /* We are missing this asset so we can't continue; examination will be repeated later */
116 _needs_assets = true;
120 auto const frac = i->main_picture()->edit_rate ();
121 float const fr = float(frac.numerator) / frac.denominator;
122 if (!_video_frame_rate) {
123 _video_frame_rate = fr;
124 } else if (_video_frame_rate.get() != fr) {
125 throw DCPError (_("Mismatched frame rates in DCP"));
129 auto asset = i->main_picture()->asset();
131 _video_size = asset->size ();
132 } else if (_video_size.get() != asset->size ()) {
133 throw DCPError (_("Mismatched video sizes in DCP"));
136 _video_length += i->main_picture()->actual_duration();
139 if (i->main_sound ()) {
140 if (!i->main_sound()->asset_ref().resolved()) {
141 /* We are missing this asset so we can't continue; examination will be repeated later */
142 _needs_assets = true;
147 auto asset = i->main_sound()->asset();
149 if (!_audio_channels) {
150 _audio_channels = asset->channels ();
151 } else if (_audio_channels.get() != asset->channels ()) {
152 throw DCPError (_("Mismatched audio channel counts in DCP"));
155 if (!_audio_frame_rate) {
156 _audio_frame_rate = asset->sampling_rate ();
157 } else if (_audio_frame_rate.get() != asset->sampling_rate ()) {
158 throw DCPError (_("Mismatched audio sample rates in DCP"));
161 _audio_length += i->main_sound()->actual_duration();
164 if (i->main_subtitle ()) {
165 if (!i->main_subtitle()->asset_ref().resolved()) {
166 /* We are missing this asset so we can't continue; examination will be repeated later */
167 _needs_assets = true;
171 _text_count[static_cast<int>(TextType::OPEN_SUBTITLE)] = 1;
174 for (auto j: i->closed_captions()) {
175 if (!j->asset_ref().resolved()) {
176 /* We are missing this asset so we can't continue; examination will be repeated later */
177 _needs_assets = true;
181 _text_count[static_cast<int>(TextType::CLOSED_CAPTION)]++;
182 _dcp_text_tracks.push_back (DCPTextTrack(j->annotation_text(), j->language().get_value_or(_("Unknown"))));
185 if (i->main_markers ()) {
186 map<dcp::Marker, dcp::Time> rm = i->main_markers()->get();
187 _markers.insert (rm.begin(), rm.end());
192 _atmos_length += i->atmos()->actual_duration();
193 if (_atmos_edit_rate != dcp::Fraction()) {
194 DCPOMATIC_ASSERT (i->atmos()->edit_rate() == _atmos_edit_rate);
196 _atmos_edit_rate = i->atmos()->edit_rate();
199 if (i->main_picture()) {
200 _reel_lengths.push_back (i->main_picture()->actual_duration());
201 } else if (i->main_sound()) {
202 _reel_lengths.push_back (i->main_sound()->actual_duration());
203 } else if (i->main_subtitle()) {
204 _reel_lengths.push_back (i->main_subtitle()->actual_duration());
205 } else if (!i->closed_captions().empty()) {
206 _reel_lengths.push_back (i->closed_captions().front()->actual_duration());
207 } else if (!i->atmos()) {
208 _reel_lengths.push_back (i->atmos()->actual_duration());
212 _encrypted = cpl->any_encrypted ();
215 /* Check that we can read the first picture, sound and subtitle frames of each reel */
217 for (auto i: cpl->reels()) {
218 auto pic = i->main_picture()->asset ();
219 auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (pic);
220 auto stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (pic);
223 mono->start_read()->get_frame(0)->xyz_image ();
225 stereo->start_read()->get_frame(0)->xyz_image(dcp::Eye::LEFT);
228 if (i->main_sound()) {
229 shared_ptr<dcp::SoundAsset> sound = i->main_sound()->asset ();
230 i->main_sound()->asset()->start_read()->get_frame(0);
233 if (i->main_subtitle()) {
234 i->main_subtitle()->asset()->subtitles ();
238 i->atmos()->asset()->start_read()->get_frame(0);
241 } catch (dcp::ReadError& e) {
243 } catch (dcp::MiscError& e) {
247 DCPOMATIC_ASSERT (cpl->standard ());
248 _standard = cpl->standard().get();
249 _three_d = !cpl->reels().empty() && cpl->reels().front()->main_picture() &&
250 dynamic_pointer_cast<dcp::StereoPictureAsset> (cpl->reels().front()->main_picture()->asset());
251 _ratings = cpl->ratings();
252 for (auto i: cpl->content_versions()) {
253 _content_versions.push_back (i.label_text);