2 Copyright (C) 2014-2018 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_content.h"
22 #include "video_content.h"
23 #include "audio_content.h"
24 #include "dcp_examiner.h"
29 #include "compose.hpp"
30 #include "dcp_decoder.h"
31 #include "text_content.h"
33 #include <dcp/raw_convert.h>
34 #include <dcp/exceptions.h>
35 #include <dcp/reel_picture_asset.h>
37 #include <libxml++/libxml++.h>
38 #include <boost/foreach.hpp>
50 using boost::shared_ptr;
51 using boost::scoped_ptr;
52 using boost::optional;
53 using boost::function;
54 using boost::dynamic_pointer_cast;
55 using dcp::raw_convert;
57 int const DCPContentProperty::NEEDS_ASSETS = 600;
58 int const DCPContentProperty::NEEDS_KDM = 601;
59 int const DCPContentProperty::REFERENCE_VIDEO = 602;
60 int const DCPContentProperty::REFERENCE_AUDIO = 603;
61 int const DCPContentProperty::REFERENCE_TEXT = 604;
62 int const DCPContentProperty::NAME = 605;
63 int const DCPContentProperty::TEXTS = 606;
65 DCPContent::DCPContent (shared_ptr<const Film> film, boost::filesystem::path p)
68 , _needs_assets (false)
70 , _reference_video (false)
71 , _reference_audio (false)
75 set_default_colour_conversion ();
77 for (int i = 0; i < TEXT_COUNT; ++i) {
78 _reference_text[i] = false;
82 DCPContent::DCPContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
83 : Content (film, node)
85 video = VideoContent::from_xml (this, node, version);
86 audio = AudioContent::from_xml (this, node, version);
87 text = TextContent::from_xml (this, node, version);
89 for (int i = 0; i < TEXT_COUNT; ++i) {
90 _reference_text[i] = false;
97 node->number_child<int> ("AudioFrameRate"),
98 /* AudioLength was not present in some old metadata versions */
99 node->optional_number_child<Frame>("AudioLength").get_value_or (
100 video->length() * node->number_child<int>("AudioFrameRate") / video_frame_rate().get()
102 AudioMapping (node->node_child ("AudioMapping"), version)
108 _name = node->string_child ("Name");
109 _encrypted = node->bool_child ("Encrypted");
110 _needs_assets = node->optional_bool_child("NeedsAssets").get_value_or (false);
111 if (node->optional_node_child ("KDM")) {
112 _kdm = dcp::EncryptedKDM (node->string_child ("KDM"));
114 _kdm_valid = node->bool_child ("KDMValid");
115 _reference_video = node->optional_bool_child ("ReferenceVideo").get_value_or (false);
116 _reference_audio = node->optional_bool_child ("ReferenceAudio").get_value_or (false);
118 _reference_text[TEXT_OPEN_SUBTITLE] = node->optional_bool_child("ReferenceOpenSubtitle").get_value_or(false);
119 _reference_text[TEXT_CLOSED_CAPTION] = node->optional_bool_child("ReferenceClosedCaption").get_value_or(false);
121 _reference_text[TEXT_OPEN_SUBTITLE] = node->optional_bool_child("ReferenceSubtitle").get_value_or(false);
122 _reference_text[TEXT_CLOSED_CAPTION] = false;
124 if (node->optional_string_child("Standard")) {
125 string const s = node->optional_string_child("Standard").get();
126 if (s == "Interop") {
127 _standard = dcp::INTEROP;
128 } else if (s == "SMPTE") {
129 _standard = dcp::SMPTE;
131 DCPOMATIC_ASSERT (false);
134 _three_d = node->optional_bool_child("ThreeD").get_value_or (false);
135 _cpl = node->optional_string_child("CPL");
136 BOOST_FOREACH (cxml::ConstNodePtr i, node->node_children("ReelLength")) {
137 _reel_lengths.push_back (raw_convert<int64_t> (i->content ()));
142 DCPContent::read_directory (boost::filesystem::path p)
144 for (boost::filesystem::directory_iterator i(p); i != boost::filesystem::directory_iterator(); ++i) {
145 if (boost::filesystem::is_regular_file (i->path())) {
146 _paths.push_back (i->path());
147 } else if (boost::filesystem::is_directory (i->path ())) {
148 read_directory (i->path());
154 DCPContent::examine (shared_ptr<Job> job)
156 bool const needed_assets = needs_assets ();
157 bool const needed_kdm = needs_kdm ();
158 string const old_name = name ();
159 int const old_texts = text.size ();
162 job->set_progress_unknown ();
164 Content::examine (job);
166 shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
168 if (examiner->has_video()) {
170 boost::mutex::scoped_lock lm (_mutex);
171 video.reset (new VideoContent (this));
173 video->take_from_examiner (examiner);
174 set_default_colour_conversion ();
177 if (examiner->has_audio()) {
179 boost::mutex::scoped_lock lm (_mutex);
180 audio.reset (new AudioContent (this));
182 AudioStreamPtr as (new AudioStream (examiner->audio_frame_rate(), examiner->audio_length(), examiner->audio_channels()));
183 audio->set_stream (as);
184 AudioMapping m = as->mapping ();
185 film()->make_audio_mapping_default (m);
187 signal_changed (AudioContentProperty::STREAMS);
192 boost::mutex::scoped_lock lm (_mutex);
193 _name = examiner->name ();
194 for (int i = 0; i < TEXT_COUNT; ++i) {
195 if (examiner->has_text(static_cast<TextType>(i))) {
196 text.push_back (shared_ptr<TextContent>(new TextContent(this, static_cast<TextType>(i))));
199 texts = text.size ();
200 _encrypted = examiner->encrypted ();
201 _needs_assets = examiner->needs_assets ();
202 _kdm_valid = examiner->kdm_valid ();
203 _standard = examiner->standard ();
204 _three_d = examiner->three_d ();
205 _cpl = examiner->cpl ();
206 _reel_lengths = examiner->reel_lengths ();
209 if (old_texts != texts) {
210 signal_changed (DCPContentProperty::TEXTS);
213 if (needed_assets != needs_assets ()) {
214 signal_changed (DCPContentProperty::NEEDS_ASSETS);
217 if (needed_kdm != needs_kdm ()) {
218 signal_changed (DCPContentProperty::NEEDS_KDM);
221 if (old_name != name ()) {
222 signal_changed (DCPContentProperty::NAME);
225 signal_changed (AudioContentProperty::STREAMS);
228 video->set_frame_type (_three_d ? VIDEO_FRAME_TYPE_3D : VIDEO_FRAME_TYPE_2D);
233 DCPContent::summary () const
235 boost::mutex::scoped_lock lm (_mutex);
236 return String::compose (_("%1 [DCP]"), _name);
240 DCPContent::technical_summary () const
242 string s = Content::technical_summary() + " - ";
244 s += video->technical_summary() + " - ";
247 s += audio->technical_summary() + " - ";
253 DCPContent::as_xml (xmlpp::Node* node, bool with_paths) const
255 node->add_child("Type")->add_child_text ("DCP");
257 Content::as_xml (node, with_paths);
260 video->as_xml (node);
264 audio->as_xml (node);
265 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
266 node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio->stream()->length()));
267 audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
270 BOOST_FOREACH (shared_ptr<TextContent> i, text) {
274 boost::mutex::scoped_lock lm (_mutex);
275 node->add_child("Name")->add_child_text (_name);
276 node->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
277 node->add_child("NeedsAssets")->add_child_text (_needs_assets ? "1" : "0");
279 node->add_child("KDM")->add_child_text (_kdm->as_xml ());
281 node->add_child("KDMValid")->add_child_text (_kdm_valid ? "1" : "0");
282 node->add_child("ReferenceVideo")->add_child_text (_reference_video ? "1" : "0");
283 node->add_child("ReferenceAudio")->add_child_text (_reference_audio ? "1" : "0");
284 node->add_child("ReferenceOpenSubtitle")->add_child_text(_reference_text[TEXT_OPEN_SUBTITLE] ? "1" : "0");
285 node->add_child("ReferenceClosedCaption")->add_child_text(_reference_text[TEXT_CLOSED_CAPTION] ? "1" : "0");
287 switch (_standard.get ()) {
289 node->add_child("Standard")->add_child_text ("Interop");
292 node->add_child("Standard")->add_child_text ("SMPTE");
295 DCPOMATIC_ASSERT (false);
298 node->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
300 node->add_child("CPL")->add_child_text (_cpl.get ());
302 BOOST_FOREACH (int64_t i, _reel_lengths) {
303 node->add_child("ReelLength")->add_child_text (raw_convert<string> (i));
308 DCPContent::full_length () const
313 FrameRateChange const frc (active_video_frame_rate (), film()->video_frame_rate ());
314 return DCPTime::from_frames (llrint (video->length () * frc.factor ()), film()->video_frame_rate ());
318 DCPContent::identifier () const
320 string s = Content::identifier() + "_";
323 s += video->identifier() + "_";
326 BOOST_FOREACH (shared_ptr<TextContent> i, text) {
327 s += i->identifier () + " ";
330 s += string (_reference_video ? "1" : "0");
331 for (int i = 0; i < TEXT_COUNT; ++i) {
332 s += string (_reference_text[i] ? "1" : "0");
338 DCPContent::add_kdm (dcp::EncryptedKDM k)
344 DCPContent::add_ov (boost::filesystem::path ov)
350 DCPContent::can_be_played () const
352 return !needs_kdm() && !needs_assets();
356 DCPContent::needs_kdm () const
358 boost::mutex::scoped_lock lm (_mutex);
359 return _encrypted && !_kdm_valid;
363 DCPContent::needs_assets () const
365 boost::mutex::scoped_lock lm (_mutex);
366 return _needs_assets;
369 vector<boost::filesystem::path>
370 DCPContent::directories () const
372 return dcp::DCP::directories_from_files (paths());
376 DCPContent::add_properties (list<UserProperty>& p) const
378 Content::add_properties (p);
380 video->add_properties (p);
383 audio->add_properties (p);
388 DCPContent::set_default_colour_conversion ()
390 /* Default to no colour conversion for DCPs */
392 video->unset_colour_conversion ();
397 DCPContent::set_reference_video (bool r)
400 boost::mutex::scoped_lock lm (_mutex);
401 _reference_video = r;
404 signal_changed (DCPContentProperty::REFERENCE_VIDEO);
408 DCPContent::set_reference_audio (bool r)
411 boost::mutex::scoped_lock lm (_mutex);
412 _reference_audio = r;
415 signal_changed (DCPContentProperty::REFERENCE_AUDIO);
419 DCPContent::set_reference_text (TextType type, bool r)
422 boost::mutex::scoped_lock lm (_mutex);
423 _reference_text[type] = r;
426 signal_changed (DCPContentProperty::REFERENCE_TEXT);
430 DCPContent::reels () const
432 list<int64_t> reel_lengths = _reel_lengths;
433 if (reel_lengths.empty ()) {
434 /* Old metadata with no reel lengths; get them here instead */
436 scoped_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this()));
437 reel_lengths = examiner->reel_lengths ();
439 /* Could not examine the DCP; guess reels */
440 reel_lengths.push_back (length_after_trim().frames_round (film()->video_frame_rate ()));
444 list<DCPTimePeriod> p;
446 /* This content's frame rate must be the same as the output DCP rate, so we can
447 convert `directly' from ContentTime to DCPTime.
450 /* The starting point of this content on the timeline */
451 DCPTime pos = position() - DCPTime (trim_start().get());
453 BOOST_FOREACH (int64_t i, reel_lengths) {
454 /* This reel runs from `pos' to `to' */
455 DCPTime const to = pos + DCPTime::from_frames (i, film()->video_frame_rate());
456 if (to > position()) {
457 p.push_back (DCPTimePeriod (max(position(), pos), min(end(), to)));
469 DCPContent::reel_split_points () const
472 BOOST_FOREACH (DCPTimePeriod i, reels()) {
473 s.push_back (i.from);
479 DCPContent::can_reference (function<bool (shared_ptr<const Content>)> part, string overlapping, string& why_not) const
481 /* We must be using the same standard as the film */
483 if (_standard.get() == dcp::INTEROP && !film()->interop()) {
484 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
485 why_not = _("it is Interop and the film is set to SMPTE.");
487 } else if (_standard.get() == dcp::SMPTE && film()->interop()) {
488 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
489 why_not = _("it is SMPTE and the film is set to Interop.");
494 /* And the same frame rate */
495 if (!video_frame_rate() || (lrint(video_frame_rate().get()) != film()->video_frame_rate())) {
496 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
497 why_not = _("it has a different frame rate to the film.");
501 list<DCPTimePeriod> const fr = film()->reels ();
503 list<DCPTimePeriod> reel_list;
505 reel_list = reels ();
506 } catch (dcp::DCPReadError) {
507 /* We couldn't read the DCP; it's probably missing */
509 } catch (dcp::KDMDecryptionError) {
510 /* We have an incorrect KDM */
514 /* fr must contain reels(). It can also contain other reels, but it must at
515 least contain reels().
517 BOOST_FOREACH (DCPTimePeriod i, reel_list) {
518 if (find (fr.begin(), fr.end(), i) == fr.end ()) {
519 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
520 why_not = _("its reel lengths differ from those in the film; set the reel mode to 'split by video content'.");
525 ContentList a = overlaps (film()->content(), part, position(), end());
526 if (a.size() != 1 || a.front().get() != this) {
527 why_not = overlapping;
535 bool check_video (shared_ptr<const Content> c)
537 return static_cast<bool>(c->video);
541 DCPContent::can_reference_video (string& why_not) const
544 why_not = _("There is no video in this DCP");
548 if (film()->frame_size() != video->size()) {
549 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
550 why_not = _("its video frame size differs from the film's.");
554 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
555 return can_reference (bind (&check_video, _1), _("it overlaps other video content; remove the other content."), why_not);
559 bool check_audio (shared_ptr<const Content> c)
561 return static_cast<bool>(c->audio);
565 DCPContent::can_reference_audio (string& why_not) const
567 shared_ptr<DCPDecoder> decoder;
569 decoder.reset (new DCPDecoder (shared_from_this(), film()->log(), false));
570 } catch (dcp::DCPReadError) {
571 /* We couldn't read the DCP, so it's probably missing */
574 /* We couldn't read the DCP, so it's probably missing */
576 } catch (dcp::KDMDecryptionError) {
577 /* We have an incorrect KDM */
581 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder->reels()) {
582 if (!i->main_sound()) {
583 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
584 why_not = _("it does not have sound in all its reels.");
589 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
590 return can_reference (bind (&check_audio, _1), _("it overlaps other audio content; remove the other content."), why_not);
594 bool check_text (shared_ptr<const Content> c)
596 return !c->text.empty();
599 DCPContent::can_reference_text (TextType type, string& why_not) const
601 shared_ptr<DCPDecoder> decoder;
603 decoder.reset (new DCPDecoder (shared_from_this(), film()->log(), false));
604 } catch (dcp::DCPReadError) {
605 /* We couldn't read the DCP, so it's probably missing */
607 } catch (dcp::KDMDecryptionError) {
608 /* We have an incorrect KDM */
612 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder->reels()) {
613 if (type == TEXT_OPEN_SUBTITLE && !i->main_subtitle()) {
614 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
615 why_not = _("it does not have open subtitles in all its reels.");
618 if (type == TEXT_CLOSED_CAPTION && !i->closed_caption()) {
619 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
620 why_not = _("it does not have closed captions in all its reels.");
625 /// TRANSLATORS: this string will follow "Cannot reference this DCP: "
626 return can_reference (bind (&check_text, _1), _("it overlaps other text content; remove the other content."), why_not);
630 DCPContent::take_settings_from (shared_ptr<const Content> c)
632 shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (c);
637 _reference_video = dc->_reference_video;
638 _reference_audio = dc->_reference_audio;
639 for (int i = 0; i < TEXT_COUNT; ++i) {
640 _reference_text[i] = dc->_reference_text[i];
645 DCPContent::set_cpl (string id)
647 boost::mutex::scoped_lock lm (_mutex);