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_subtitle_asset.h>
43 #include <dcp/reel_closed_caption_asset.h>
44 #include <dcp/reel_markers_asset.h>
45 #include <dcp/sound_asset.h>
46 #include <boost/foreach.hpp>
53 using std::runtime_error;
55 using boost::shared_ptr;
56 using boost::dynamic_pointer_cast;
58 DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
59 : DCP (content, tolerant)
65 , _needs_assets (false)
69 shared_ptr<dcp::CPL> cpl;
71 for (int i = 0; i < TEXT_COUNT; ++i) {
75 if (content->cpl ()) {
76 /* Use the CPL that the content was using before */
77 BOOST_FOREACH (shared_ptr<dcp::CPL> i, cpls()) {
78 if (i->id() == content->cpl().get()) {
83 /* Choose the CPL with the fewest unsatisfied references */
85 int least_unsatisfied = INT_MAX;
87 BOOST_FOREACH (shared_ptr<dcp::CPL> i, cpls()) {
89 BOOST_FOREACH (shared_ptr<dcp::Reel> j, i->reels()) {
90 if (j->main_picture() && !j->main_picture()->asset_ref().resolved()) {
93 if (j->main_sound() && !j->main_sound()->asset_ref().resolved()) {
96 if (j->main_subtitle() && !j->main_subtitle()->asset_ref().resolved()) {
101 if (unsatisfied < least_unsatisfied) {
102 least_unsatisfied = unsatisfied;
109 throw DCPError ("No CPLs found in DCP");
113 _name = cpl->content_title_text ();
114 _content_kind = cpl->content_kind ();
116 BOOST_FOREACH (shared_ptr<dcp::Reel> i, cpl->reels()) {
118 if (i->main_picture ()) {
119 if (!i->main_picture()->asset_ref().resolved()) {
120 /* We are missing this asset so we can't continue; examination will be repeated later */
121 _needs_assets = true;
125 dcp::Fraction const frac = i->main_picture()->edit_rate ();
126 float const fr = float(frac.numerator) / frac.denominator;
127 if (!_video_frame_rate) {
128 _video_frame_rate = fr;
129 } else if (_video_frame_rate.get() != fr) {
130 throw DCPError (_("Mismatched frame rates in DCP"));
134 shared_ptr<dcp::PictureAsset> asset = i->main_picture()->asset ();
136 _video_size = asset->size ();
137 } else if (_video_size.get() != asset->size ()) {
138 throw DCPError (_("Mismatched video sizes in DCP"));
141 _video_length += i->main_picture()->actual_duration();
144 if (i->main_sound ()) {
145 if (!i->main_sound()->asset_ref().resolved()) {
146 /* We are missing this asset so we can't continue; examination will be repeated later */
147 _needs_assets = true;
152 shared_ptr<dcp::SoundAsset> asset = i->main_sound()->asset ();
154 if (!_audio_channels) {
155 _audio_channels = asset->channels ();
156 } else if (_audio_channels.get() != asset->channels ()) {
157 throw DCPError (_("Mismatched audio channel counts in DCP"));
160 if (!_audio_frame_rate) {
161 _audio_frame_rate = asset->sampling_rate ();
162 } else if (_audio_frame_rate.get() != asset->sampling_rate ()) {
163 throw DCPError (_("Mismatched audio sample rates in DCP"));
166 _audio_length += i->main_sound()->actual_duration();
169 if (i->main_subtitle ()) {
170 if (!i->main_subtitle()->asset_ref().resolved()) {
171 /* We are missing this asset so we can't continue; examination will be repeated later */
172 _needs_assets = true;
176 _text_count[TEXT_OPEN_SUBTITLE] = 1;
179 BOOST_FOREACH (shared_ptr<dcp::ReelClosedCaptionAsset> j, i->closed_captions()) {
180 if (!j->asset_ref().resolved()) {
181 /* We are missing this asset so we can't continue; examination will be repeated later */
182 _needs_assets = true;
186 _text_count[TEXT_CLOSED_CAPTION]++;
189 if (i->main_markers ()) {
190 map<dcp::Marker, dcp::Time> rm = i->main_markers()->get();
191 _markers.insert (rm.begin(), rm.end());
194 if (i->main_picture()) {
195 _reel_lengths.push_back (i->main_picture()->actual_duration());
196 } else if (i->main_sound()) {
197 _reel_lengths.push_back (i->main_sound()->actual_duration());
198 } else if (i->main_subtitle()) {
199 _reel_lengths.push_back (i->main_subtitle()->actual_duration());
200 } else if (!i->closed_captions().empty()) {
201 _reel_lengths.push_back (i->closed_captions().front()->actual_duration());
205 _encrypted = cpl->encrypted ();
208 /* Check that we can read the first picture, sound and subtitle frames of each reel */
210 BOOST_FOREACH (shared_ptr<dcp::Reel> i, cpl->reels()) {
211 shared_ptr<dcp::PictureAsset> pic = i->main_picture()->asset ();
212 shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (pic);
213 shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (pic);
216 mono->start_read()->get_frame(0)->xyz_image ();
218 stereo->start_read()->get_frame(0)->xyz_image (dcp::EYE_LEFT);
221 if (i->main_sound()) {
222 shared_ptr<dcp::SoundAsset> sound = i->main_sound()->asset ();
223 i->main_sound()->asset()->start_read()->get_frame(0);
226 if (i->main_subtitle()) {
227 i->main_subtitle()->asset()->subtitles ();
230 } catch (dcp::ReadError& e) {
232 } catch (dcp::MiscError& e) {
236 DCPOMATIC_ASSERT (cpl->standard ());
237 _standard = cpl->standard().get();
238 _three_d = !cpl->reels().empty() && cpl->reels().front()->main_picture() &&
239 dynamic_pointer_cast<dcp::StereoPictureAsset> (cpl->reels().front()->main_picture()->asset());
240 _ratings = list_to_vector (cpl->ratings());
241 _content_version = cpl->content_version_label_text ();