2 Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * @brief A representation of some audio and video content, and details of
22 * how they should be presented in a DCP.
28 #include "job_manager.h"
29 #include "transcode_job.h"
30 #include "upload_job.h"
32 #include "exceptions.h"
33 #include "examine_content_job.h"
36 #include "dcp_content_type.h"
39 #include "safe_stringstream.h"
40 #include "environment_info.h"
41 #include "raw_convert.h"
42 #include "audio_processor.h"
43 #include "md5_digester.h"
44 #include "compose.hpp"
46 #include <libcxml/cxml.h>
48 #include <dcp/certificate_chain.h>
50 #include <dcp/local_time.h>
51 #include <dcp/decrypted_kdm.h>
52 #include <libxml++/libxml++.h>
53 #include <boost/filesystem.hpp>
54 #include <boost/algorithm/string.hpp>
55 #include <boost/foreach.hpp>
76 using boost::shared_ptr;
77 using boost::weak_ptr;
78 using boost::dynamic_pointer_cast;
79 using boost::optional;
80 using boost::is_any_of;
82 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
83 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, Log::TYPE_GENERAL);
86 * AudioMapping XML changed.
88 * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
90 * Use <Scale> tag in <VideoContent> rather than <Ratio>.
94 * Subtitle X and Y scale.
96 * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
99 int const Film::current_state_version = 32;
101 /** Construct a Film object in a given directory.
103 * @param dir Film directory.
106 Film::Film (boost::filesystem::path dir, bool log)
107 : _playlist (new Playlist)
108 , _use_isdcf_name (true)
109 , _dcp_content_type (Config::instance()->default_dcp_content_type ())
110 , _container (Config::instance()->default_container ())
111 , _resolution (RESOLUTION_2K)
114 , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
115 , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
116 , _video_frame_rate (24)
117 , _audio_channels (6)
119 , _sequence_video (true)
121 , _audio_processor (0)
122 , _state_version (current_state_version)
125 set_isdcf_date_today ();
127 _playlist_changed_connection = _playlist->Changed.connect (bind (&Film::playlist_changed, this));
128 _playlist_content_changed_connection = _playlist->ContentChanged.connect (bind (&Film::playlist_content_changed, this, _1, _2, _3));
130 /* Make state.directory a complete path without ..s (where possible)
131 (Code swiped from Adam Bowen on stackoverflow)
134 boost::filesystem::path p (boost::filesystem::system_complete (dir));
135 boost::filesystem::path result;
136 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
138 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
141 result = result.parent_path ();
143 } else if (*i != ".") {
148 set_directory (result.make_preferred ());
150 _log.reset (new FileLog (file ("log")));
152 _log.reset (new NullLog);
155 _playlist->set_sequence_video (_sequence_video);
160 for (list<boost::signals2::connection>::const_iterator i = _job_connections.begin(); i != _job_connections.end(); ++i) {
166 Film::video_identifier () const
168 DCPOMATIC_ASSERT (container ());
171 s.imbue (std::locale::classic ());
173 s << container()->id()
174 << "_" << resolution_to_string (_resolution)
175 << "_" << _playlist->video_identifier()
176 << "_" << _video_frame_rate
177 << "_" << j2k_bandwidth();
198 /** @return The file to write video frame info to */
199 boost::filesystem::path
200 Film::info_file () const
202 boost::filesystem::path p;
204 p /= video_identifier ();
208 boost::filesystem::path
209 Film::internal_video_asset_dir () const
211 return dir ("video");
214 boost::filesystem::path
215 Film::internal_video_asset_filename () const
217 return video_identifier() + ".mxf";
220 boost::filesystem::path
221 Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
223 boost::filesystem::path p = dir ("analysis");
225 MD5Digester digester;
226 BOOST_FOREACH (shared_ptr<Content> i, playlist->content ()) {
227 shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (i);
232 digester.add (ac->digest ());
233 digester.add (ac->audio_mapping().digest ());
234 if (playlist->content().size() != 1) {
235 /* Analyses should be considered equal regardless of gain
236 if they were made from just one piece of content. This
237 is because we can fake any gain change in a single-content
238 analysis at the plotting stage rather than having to
241 digester.add (ac->audio_gain ());
245 if (audio_processor ()) {
246 digester.add (audio_processor()->id ());
249 p /= digester.get ();
253 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
257 if (dcp_name().find ("/") != string::npos) {
258 throw BadSettingError (_("name"), _("cannot contain slashes"));
261 set_isdcf_date_today ();
263 environment_info (log ());
265 BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
266 LOG_GENERAL ("Content: %1", i->technical_summary());
268 LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
269 if (Config::instance()->only_servers_encode ()) {
270 LOG_GENERAL_NC ("0 threads: ONLY SERVERS SET TO ENCODE");
272 LOG_GENERAL ("%1 threads", Config::instance()->num_local_encoding_threads());
274 LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
276 if (container() == 0) {
277 throw MissingSettingError (_("container"));
280 if (content().empty()) {
281 throw StringError (_("You must add some content to the DCP before creating it"));
284 if (dcp_content_type() == 0) {
285 throw MissingSettingError (_("content type"));
288 if (name().empty()) {
289 throw MissingSettingError (_("name"));
292 JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this())));
295 /** Start a job to send our DCP to the configured TMS */
297 Film::send_dcp_to_tms ()
299 shared_ptr<Job> j (new UploadJob (shared_from_this()));
300 JobManager::instance()->add (j);
303 shared_ptr<xmlpp::Document>
304 Film::metadata () const
306 shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
307 xmlpp::Element* root = doc->create_root_node ("Metadata");
309 root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
310 root->add_child("Name")->add_child_text (_name);
311 root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
313 if (_dcp_content_type) {
314 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
318 root->add_child("Container")->add_child_text (_container->id ());
321 root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
322 root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
323 _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
324 root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
325 root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
326 root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
327 root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
328 root->add_child("SequenceVideo")->add_child_text (_sequence_video ? "1" : "0");
329 root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
330 root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
331 root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
332 root->add_child("Key")->add_child_text (_key.hex ());
333 if (_audio_processor) {
334 root->add_child("AudioProcessor")->add_child_text (_audio_processor->id ());
336 _playlist->as_xml (root->add_child ("Playlist"));
341 /** Write state to our `metadata' file */
343 Film::write_metadata () const
345 boost::filesystem::create_directories (directory ());
346 shared_ptr<xmlpp::Document> doc = metadata ();
347 doc->write_to_file_formatted (file("metadata.xml").string ());
351 /** Read state from our metadata file.
352 * @return Notes about things that the user should know about, or empty.
355 Film::read_metadata ()
357 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file ("metadata.xml"))) {
358 throw StringError (_("This film was created with an older version of DCP-o-matic, and unfortunately it cannot be loaded into this version. You will need to create a new Film, re-add your content and set it up again. Sorry!"));
361 cxml::Document f ("Metadata");
362 f.read_file (file ("metadata.xml"));
364 _state_version = f.number_child<int> ("Version");
365 if (_state_version > current_state_version) {
366 throw StringError (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version. Sorry!"));
369 _name = f.string_child ("Name");
370 if (_state_version >= 9) {
371 _use_isdcf_name = f.bool_child ("UseISDCFName");
372 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
373 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
375 _use_isdcf_name = f.bool_child ("UseDCIName");
376 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
377 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
381 optional<string> c = f.optional_string_child ("DCPContentType");
383 _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
388 optional<string> c = f.optional_string_child ("Container");
390 _container = Ratio::from_id (c.get ());
394 _resolution = string_to_resolution (f.string_child ("Resolution"));
395 _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
396 _video_frame_rate = f.number_child<int> ("VideoFrameRate");
397 _signed = f.optional_bool_child("Signed").get_value_or (true);
398 _encrypted = f.bool_child ("Encrypted");
399 _audio_channels = f.number_child<int> ("AudioChannels");
400 /* We used to allow odd numbers (and zero) channels, but it's just not worth
403 if (_audio_channels == 0) {
405 } else if ((_audio_channels % 2) == 1) {
408 _sequence_video = f.bool_child ("SequenceVideo");
409 _three_d = f.bool_child ("ThreeD");
410 _interop = f.bool_child ("Interop");
411 _key = dcp::Key (f.string_child ("Key"));
413 if (f.optional_string_child ("AudioProcessor")) {
414 _audio_processor = AudioProcessor::from_id (f.string_child ("AudioProcessor"));
416 _audio_processor = 0;
420 /* This method is the only one that can return notes (so far) */
421 _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
423 /* Write backtraces to this film's directory, until another film is loaded */
424 set_backtrace_file (file ("backtrace.txt"));
430 /** Given a directory name, return its full path within the Film's directory.
431 * The directory (and its parents) will be created if they do not exist.
433 boost::filesystem::path
434 Film::dir (boost::filesystem::path d) const
436 boost::filesystem::path p;
440 boost::filesystem::create_directories (p);
445 /** Given a file or directory name, return its full path within the Film's directory.
446 * Any required parent directories will be created.
448 boost::filesystem::path
449 Film::file (boost::filesystem::path f) const
451 boost::filesystem::path p;
455 boost::filesystem::create_directories (p.parent_path ());
460 /** @return a ISDCF-compliant name for a DCP of this film */
462 Film::isdcf_name (bool if_created_now) const
466 string raw_name = name ();
468 /* Split the raw name up into words */
469 vector<string> words;
470 split (words, raw_name, is_any_of (" _-"));
474 /* Add each word to fixed_name */
475 for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
478 /* First letter is always capitalised */
479 w[0] = toupper (w[0]);
481 /* Count caps in w */
483 for (size_t i = 0; i < w.size(); ++i) {
484 if (isupper (w[i])) {
489 /* If w is all caps make the rest of it lower case, otherwise
492 if (caps == w.size ()) {
493 for (size_t i = 1; i < w.size(); ++i) {
494 w[i] = tolower (w[i]);
498 for (size_t i = 0; i < w.size(); ++i) {
503 if (fixed_name.length() > 14) {
504 fixed_name = fixed_name.substr (0, 14);
509 if (dcp_content_type()) {
510 d << "_" << dcp_content_type()->isdcf_name();
511 d << "-" << isdcf_metadata().content_version;
514 ISDCFMetadata const dm = isdcf_metadata ();
516 if (dm.temp_version) {
520 if (dm.pre_release) {
528 if (!dm.chain.empty ()) {
529 d << "-" << dm.chain;
536 if (dm.two_d_version_of_three_d) {
540 if (!dm.mastered_luminance.empty ()) {
541 d << "-" << dm.mastered_luminance;
544 if (video_frame_rate() != 24) {
545 d << "-" << video_frame_rate();
549 d << "_" << container()->isdcf_name();
552 ContentList cl = content ();
554 /* XXX: this uses the first bit of content only */
556 /* The standard says we don't do this for trailers, for some strange reason */
557 if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
558 Ratio const * content_ratio = 0;
559 for (ContentList::iterator i = cl.begin(); i != cl.end(); ++i) {
560 shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*i);
562 /* Here's the first piece of video content */
563 if (vc->scale().ratio ()) {
564 content_ratio = vc->scale().ratio ();
566 content_ratio = Ratio::from_ratio (vc->video_size().ratio ());
572 if (content_ratio && content_ratio != container()) {
573 d << "-" << content_ratio->isdcf_name();
577 if (!dm.audio_language.empty ()) {
578 d << "_" << dm.audio_language;
579 if (!dm.subtitle_language.empty()) {
580 d << "-" << dm.subtitle_language;
586 if (!dm.territory.empty ()) {
587 d << "_" << dm.territory;
588 if (dm.rating.empty ()) {
591 d << "-" << dm.rating;
595 /* Find all mapped channels */
600 if (audio_processor ()) {
601 /* Processors are mapped 1:1 to DCP outputs so we can guess the number of LFE/
602 non-LFE from the channel counts.
604 non_lfe = audio_processor()->out_channels ();
611 for (ContentList::const_iterator i = cl.begin(); i != cl.end(); ++i) {
612 shared_ptr<const AudioContent> ac = dynamic_pointer_cast<const AudioContent> (*i);
614 list<int> c = ac->audio_mapping().mapped_output_channels ();
615 copy (c.begin(), c.end(), back_inserter (mapped));
624 for (list<int>::const_iterator i = mapped.begin(); i != mapped.end(); ++i) {
625 if (*i >= audio_channels()) {
626 /* This channel is mapped but is not included in the DCP */
630 if (static_cast<dcp::Channel> (*i) == dcp::LFE) {
639 d << "_" << non_lfe << lfe;
644 d << "_" << resolution_to_string (_resolution);
646 if (!dm.studio.empty ()) {
647 d << "_" << dm.studio;
650 if (if_created_now) {
651 d << "_" << boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
653 d << "_" << boost::gregorian::to_iso_string (_isdcf_date);
656 if (!dm.facility.empty ()) {
657 d << "_" << dm.facility;
670 if (!dm.package_type.empty ()) {
671 d << "_" << dm.package_type;
677 /** @return name to give the DCP */
679 Film::dcp_name (bool if_created_now) const
682 if (use_isdcf_name()) {
683 unfiltered = isdcf_name (if_created_now);
685 unfiltered = name ();
688 /* Filter out `bad' characters which cause problems with some systems.
689 There's no apparent list of what really is allowed, so this is a guess.
693 string const allowed = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_";
694 for (size_t i = 0; i < unfiltered.size(); ++i) {
695 if (allowed.find (unfiltered[i]) != string::npos) {
696 filtered += unfiltered[i];
704 Film::set_directory (boost::filesystem::path d)
711 Film::set_name (string n)
714 signal_changed (NAME);
718 Film::set_use_isdcf_name (bool u)
721 signal_changed (USE_ISDCF_NAME);
725 Film::set_dcp_content_type (DCPContentType const * t)
727 _dcp_content_type = t;
728 signal_changed (DCP_CONTENT_TYPE);
732 Film::set_container (Ratio const * c)
735 signal_changed (CONTAINER);
739 Film::set_resolution (Resolution r)
742 signal_changed (RESOLUTION);
746 Film::set_j2k_bandwidth (int b)
749 signal_changed (J2K_BANDWIDTH);
753 Film::set_isdcf_metadata (ISDCFMetadata m)
756 signal_changed (ISDCF_METADATA);
760 Film::set_video_frame_rate (int f)
762 _video_frame_rate = f;
763 signal_changed (VIDEO_FRAME_RATE);
767 Film::set_audio_channels (int c)
770 signal_changed (AUDIO_CHANNELS);
774 Film::set_three_d (bool t)
777 signal_changed (THREE_D);
779 if (_three_d && _isdcf_metadata.two_d_version_of_three_d) {
780 _isdcf_metadata.two_d_version_of_three_d = false;
781 signal_changed (ISDCF_METADATA);
786 Film::set_interop (bool i)
789 signal_changed (INTEROP);
793 Film::set_audio_processor (AudioProcessor const * processor)
795 _audio_processor = processor;
796 signal_changed (AUDIO_PROCESSOR);
797 signal_changed (AUDIO_CHANNELS);
801 Film::signal_changed (Property p)
807 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
809 case Film::VIDEO_FRAME_RATE:
810 case Film::SEQUENCE_VIDEO:
811 _playlist->maybe_sequence_video ();
817 emit (boost::bind (boost::ref (Changed), p));
821 Film::set_isdcf_date_today ()
823 _isdcf_date = boost::gregorian::day_clock::local_day ();
826 boost::filesystem::path
827 Film::j2c_path (int f, Eyes e, bool t) const
829 boost::filesystem::path p;
831 p /= video_identifier ();
835 s << setfill('0') << f;
837 if (e == EYES_LEFT) {
839 } else if (e == EYES_RIGHT) {
853 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
857 vector<CPLSummary> out;
859 boost::filesystem::path const dir = directory ();
860 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
862 boost::filesystem::is_directory (*i) &&
863 i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
871 i->path().leaf().string(),
872 dcp.cpls().front()->id(),
873 dcp.cpls().front()->annotation_text(),
874 dcp.cpls().front()->file()
887 Film::set_signed (bool s)
890 signal_changed (SIGNED);
894 Film::set_encrypted (bool e)
897 signal_changed (ENCRYPTED);
901 Film::set_key (dcp::Key key)
904 signal_changed (KEY);
908 Film::content () const
910 return _playlist->content ();
914 Film::examine_content (shared_ptr<Content> c)
916 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c));
917 JobManager::instance()->add (j);
921 Film::examine_and_add_content (shared_ptr<Content> c)
923 if (dynamic_pointer_cast<FFmpegContent> (c) && !_directory.empty ()) {
924 run_ffprobe (c->path(0), file ("ffprobe.log"), _log);
927 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c));
929 _job_connections.push_back (
930 j->Finished.connect (bind (&Film::maybe_add_content, this, weak_ptr<Job> (j), weak_ptr<Content> (c)))
933 JobManager::instance()->add (j);
937 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c)
939 shared_ptr<Job> job = j.lock ();
940 if (!job || !job->finished_ok ()) {
944 shared_ptr<Content> content = c.lock ();
946 add_content (content);
951 Film::add_content (shared_ptr<Content> c)
953 /* Add video content after any existing content */
954 if (dynamic_pointer_cast<VideoContent> (c)) {
955 c->set_position (_playlist->video_end ());
962 Film::remove_content (shared_ptr<Content> c)
964 _playlist->remove (c);
968 Film::move_content_earlier (shared_ptr<Content> c)
970 _playlist->move_earlier (c);
974 Film::move_content_later (shared_ptr<Content> c)
976 _playlist->move_later (c);
980 Film::length () const
982 return _playlist->length ();
986 Film::best_video_frame_rate () const
988 return _playlist->best_dcp_frame_rate ();
992 Film::active_frame_rate_change (DCPTime t) const
994 return _playlist->active_frame_rate_change (t, video_frame_rate ());
998 Film::playlist_content_changed (weak_ptr<Content> c, int p, bool frequent)
1002 if (p == VideoContentProperty::VIDEO_FRAME_RATE) {
1003 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
1004 } else if (p == AudioContentProperty::AUDIO_STREAMS) {
1005 signal_changed (NAME);
1008 emit (boost::bind (boost::ref (ContentChanged), c, p, frequent));
1012 Film::playlist_changed ()
1014 signal_changed (CONTENT);
1015 signal_changed (NAME);
1019 Film::audio_frame_rate () const
1021 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
1022 shared_ptr<AudioContent> a = dynamic_pointer_cast<AudioContent> (i);
1023 if (a && a->has_rate_above_48k ()) {
1032 Film::set_sequence_video (bool s)
1034 _sequence_video = s;
1035 _playlist->set_sequence_video (s);
1036 signal_changed (SEQUENCE_VIDEO);
1039 /** @return Size of the largest possible image in whatever resolution we are using */
1041 Film::full_frame () const
1043 switch (_resolution) {
1045 return dcp::Size (2048, 1080);
1047 return dcp::Size (4096, 2160);
1050 DCPOMATIC_ASSERT (false);
1051 return dcp::Size ();
1054 /** @return Size of the frame */
1056 Film::frame_size () const
1058 return fit_ratio_within (container()->ratio(), full_frame ());
1063 dcp::Certificate target,
1064 boost::filesystem::path cpl_file,
1065 dcp::LocalTime from,
1066 dcp::LocalTime until,
1067 dcp::Formulation formulation
1070 shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1071 shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
1072 if (!signer->valid ()) {
1073 throw InvalidSignerError ();
1076 return dcp::DecryptedKDM (
1077 cpl, key(), from, until, "DCP-o-matic", cpl->content_title_text(), dcp::LocalTime().as_string()
1078 ).encrypt (signer, target, formulation);
1081 list<dcp::EncryptedKDM>
1083 list<shared_ptr<Screen> > screens,
1084 boost::filesystem::path dcp,
1085 dcp::LocalTime from,
1086 dcp::LocalTime until,
1087 dcp::Formulation formulation
1090 list<dcp::EncryptedKDM> kdms;
1092 for (list<shared_ptr<Screen> >::iterator i = screens.begin(); i != screens.end(); ++i) {
1093 if ((*i)->certificate) {
1094 kdms.push_back (make_kdm ((*i)->certificate.get(), dcp, from, until, formulation));
1101 /** @return The approximate disk space required to encode a DCP of this film with the
1102 * current settings, in bytes.
1105 Film::required_disk_space () const
1107 return uint64_t (j2k_bandwidth() / 8) * length().seconds();
1110 /** This method checks the disk that the Film is on and tries to decide whether or not
1111 * there will be enough space to make a DCP for it. If so, true is returned; if not,
1112 * false is returned and required and availabe are filled in with the amount of disk space
1113 * required and available respectively (in Gb).
1115 * Note: the decision made by this method isn't, of course, 100% reliable.
1118 Film::should_be_enough_disk_space (double& required, double& available, bool& can_hard_link) const
1120 /* Create a test file and see if we can hard-link it */
1121 boost::filesystem::path test = internal_video_asset_dir() / "test";
1122 boost::filesystem::path test2 = internal_video_asset_dir() / "test2";
1123 can_hard_link = true;
1124 FILE* f = fopen_boost (test, "w");
1127 boost::system::error_code ec;
1128 boost::filesystem::create_hard_link (test, test2, ec);
1130 can_hard_link = false;
1132 boost::filesystem::remove (test);
1133 boost::filesystem::remove (test2);
1136 boost::filesystem::space_info s = boost::filesystem::space (internal_video_asset_dir ());
1137 required = double (required_disk_space ()) / 1073741824.0f;
1138 if (!can_hard_link) {
1141 available = double (s.available) / 1073741824.0f;
1142 return (available - required) > 1;
1146 Film::subtitle_language () const
1148 set<string> languages;
1150 ContentList cl = content ();
1151 BOOST_FOREACH (shared_ptr<Content>& c, cl) {
1152 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c);
1154 languages.insert (sc->subtitle_language ());
1159 BOOST_FOREACH (string s, languages) {
1160 if (!all.empty ()) {
1170 /** Change the gains of the supplied AudioMapping to make it a default
1171 * for this film. The defaults are guessed based on what processor (if any)
1172 * is in use and the number of input channels.
1175 Film::make_audio_mapping_default (AudioMapping& mapping) const
1177 if (audio_processor ()) {
1178 audio_processor()->make_audio_mapping_default (mapping);
1180 mapping.make_zero ();
1181 if (mapping.input_channels() == 1) {
1182 /* Mono -> Centre */
1183 mapping.set (0, static_cast<int> (dcp::CENTRE), 1);
1186 for (int i = 0; i < min (mapping.input_channels(), mapping.output_channels()); ++i) {
1187 mapping.set (i, i, 1);
1193 /** @return The names of the channels that audio contents' outputs are passed into;
1194 * this is either the DCP or a AudioProcessor.
1197 Film::audio_output_names () const
1199 if (audio_processor ()) {
1200 return audio_processor()->input_names ();
1204 n.push_back (_("L"));
1205 n.push_back (_("R"));
1206 n.push_back (_("C"));
1207 n.push_back (_("Lfe"));
1208 n.push_back (_("Ls"));
1209 n.push_back (_("Rs"));
1210 n.push_back (_("HI"));
1211 n.push_back (_("VI"));
1212 n.push_back (_("Lc"));
1213 n.push_back (_("Rc"));
1214 n.push_back (_("BsL"));
1215 n.push_back (_("BsR"));
1217 return vector<string> (n.begin(), n.begin() + audio_channels ());
1221 Film::repeat_content (ContentList c, int n)
1223 _playlist->repeat (c, n);
1227 Film::remove_content (ContentList c)
1229 _playlist->remove (c);