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 "scp_dcp_job.h"
32 #include "exceptions.h"
33 #include "examine_content_job.h"
37 #include "dcp_content_type.h"
41 #include "safe_stringstream.h"
42 #include "environment_info.h"
43 #include "raw_convert.h"
44 #include "audio_processor.h"
45 #include "md5_digester.h"
46 #include <libcxml/cxml.h>
48 #include <dcp/signer.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/lexical_cast.hpp>
56 #include <boost/foreach.hpp>
81 using boost::shared_ptr;
82 using boost::weak_ptr;
83 using boost::dynamic_pointer_cast;
84 using boost::to_upper_copy;
85 using boost::ends_with;
86 using boost::starts_with;
87 using boost::optional;
88 using boost::is_any_of;
92 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
93 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, Log::TYPE_GENERAL);
96 * AudioMapping XML changed.
98 * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
100 * Use <Scale> tag in <VideoContent> rather than <Ratio>.
104 * Subtitle X and Y scale.
106 * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
109 int const Film::current_state_version = 32;
111 /** Construct a Film object in a given directory.
113 * @param dir Film directory.
116 Film::Film (boost::filesystem::path dir, bool log)
117 : _playlist (new Playlist)
118 , _use_isdcf_name (true)
119 , _dcp_content_type (Config::instance()->default_dcp_content_type ())
120 , _container (Config::instance()->default_container ())
121 , _resolution (RESOLUTION_2K)
124 , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
125 , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
126 , _video_frame_rate (24)
127 , _audio_channels (6)
129 , _sequence_video (true)
131 , _audio_processor (0)
132 , _state_version (current_state_version)
135 set_isdcf_date_today ();
137 _playlist_changed_connection = _playlist->Changed.connect (bind (&Film::playlist_changed, this));
138 _playlist_content_changed_connection = _playlist->ContentChanged.connect (bind (&Film::playlist_content_changed, this, _1, _2, _3));
140 /* Make state.directory a complete path without ..s (where possible)
141 (Code swiped from Adam Bowen on stackoverflow)
144 boost::filesystem::path p (boost::filesystem::system_complete (dir));
145 boost::filesystem::path result;
146 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
148 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
151 result = result.parent_path ();
153 } else if (*i != ".") {
158 set_directory (result.make_preferred ());
160 _log.reset (new FileLog (file ("log")));
162 _log.reset (new NullLog);
165 _playlist->set_sequence_video (_sequence_video);
170 for (list<boost::signals2::connection>::const_iterator i = _job_connections.begin(); i != _job_connections.end(); ++i) {
176 Film::video_identifier () const
178 DCPOMATIC_ASSERT (container ());
181 s.imbue (std::locale::classic ());
183 s << container()->id()
184 << "_" << resolution_to_string (_resolution)
185 << "_" << _playlist->video_identifier()
186 << "_" << _video_frame_rate
187 << "_" << j2k_bandwidth();
208 /** @return The file to write video frame info to */
209 boost::filesystem::path
210 Film::info_file () const
212 boost::filesystem::path p;
214 p /= video_identifier ();
218 boost::filesystem::path
219 Film::internal_video_asset_dir () const
221 return dir ("video");
224 boost::filesystem::path
225 Film::internal_video_asset_filename () const
227 return video_identifier() + ".mxf";
231 Film::filename_safe_name () const
233 string const n = name ();
235 for (size_t i = 0; i < n.length(); ++i) {
236 if (isalnum (n[i])) {
246 boost::filesystem::path
247 Film::audio_analysis_path () const
249 boost::filesystem::path p = dir ("analysis");
251 MD5Digester digester;
252 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
253 shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (i);
258 digester.add (ac->digest ());
259 digester.add (ac->audio_mapping().digest ());
260 digester.add (ac->audio_gain ());
263 if (audio_processor ()) {
264 digester.add (audio_processor()->id ());
267 p /= digester.get ();
271 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
275 if (dcp_name().find ("/") != string::npos) {
276 throw BadSettingError (_("name"), _("cannot contain slashes"));
279 bool must_burn = false;
280 ContentList cl = content ();
281 BOOST_FOREACH (shared_ptr<Content> c, cl) {
282 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c);
283 if (sc && sc->has_image_subtitles() && sc->use_subtitles() && !sc->burn_subtitles ()) {
289 throw EncodeError (_("this project has content with image-based subtitles, which this version of DCP-o-matic cannot include as separate DCP subtitles. To use these subtitles you must burn them into the image (tick the box in the Subtitles tab)."));
292 set_isdcf_date_today ();
294 environment_info (log ());
296 for (ContentList::const_iterator i = cl.begin(); i != cl.end(); ++i) {
297 LOG_GENERAL ("Content: %1", (*i)->technical_summary());
299 LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
300 LOG_GENERAL ("%1 threads", Config::instance()->num_local_encoding_threads());
301 LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
303 if (container() == 0) {
304 throw MissingSettingError (_("container"));
307 if (content().empty()) {
308 throw StringError (_("You must add some content to the DCP before creating it"));
311 if (dcp_content_type() == 0) {
312 throw MissingSettingError (_("content type"));
315 if (name().empty()) {
316 throw MissingSettingError (_("name"));
319 JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this())));
322 /** Start a job to send our DCP to the configured TMS */
324 Film::send_dcp_to_tms ()
326 shared_ptr<Job> j (new SCPDCPJob (shared_from_this()));
327 JobManager::instance()->add (j);
330 shared_ptr<xmlpp::Document>
331 Film::metadata () const
333 shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
334 xmlpp::Element* root = doc->create_root_node ("Metadata");
336 root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
337 root->add_child("Name")->add_child_text (_name);
338 root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
340 if (_dcp_content_type) {
341 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
345 root->add_child("Container")->add_child_text (_container->id ());
348 root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
349 root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
350 _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
351 root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
352 root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
353 root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
354 root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
355 root->add_child("SequenceVideo")->add_child_text (_sequence_video ? "1" : "0");
356 root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
357 root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
358 root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
359 root->add_child("Key")->add_child_text (_key.hex ());
360 if (_audio_processor) {
361 root->add_child("AudioProcessor")->add_child_text (_audio_processor->id ());
363 _playlist->as_xml (root->add_child ("Playlist"));
368 /** Write state to our `metadata' file */
370 Film::write_metadata () const
372 boost::filesystem::create_directories (directory ());
373 shared_ptr<xmlpp::Document> doc = metadata ();
374 doc->write_to_file_formatted (file("metadata.xml").string ());
378 /** Read state from our metadata file.
379 * @return Notes about things that the user should know about, or empty.
382 Film::read_metadata ()
384 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file ("metadata.xml"))) {
385 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!"));
388 cxml::Document f ("Metadata");
389 f.read_file (file ("metadata.xml"));
391 _state_version = f.number_child<int> ("Version");
392 if (_state_version > current_state_version) {
393 throw StringError (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version. Sorry!"));
396 _name = f.string_child ("Name");
397 if (_state_version >= 9) {
398 _use_isdcf_name = f.bool_child ("UseISDCFName");
399 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
400 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
402 _use_isdcf_name = f.bool_child ("UseDCIName");
403 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
404 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
408 optional<string> c = f.optional_string_child ("DCPContentType");
410 _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
415 optional<string> c = f.optional_string_child ("Container");
417 _container = Ratio::from_id (c.get ());
421 _resolution = string_to_resolution (f.string_child ("Resolution"));
422 _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
423 _video_frame_rate = f.number_child<int> ("VideoFrameRate");
424 _signed = f.optional_bool_child("Signed").get_value_or (true);
425 _encrypted = f.bool_child ("Encrypted");
426 _audio_channels = f.number_child<int> ("AudioChannels");
427 /* We used to allow odd numbers (and zero) channels, but it's just not worth
430 if (_audio_channels == 0) {
432 } else if ((_audio_channels % 2) == 1) {
435 _sequence_video = f.bool_child ("SequenceVideo");
436 _three_d = f.bool_child ("ThreeD");
437 _interop = f.bool_child ("Interop");
438 _key = dcp::Key (f.string_child ("Key"));
440 if (f.optional_string_child ("AudioProcessor")) {
441 _audio_processor = AudioProcessor::from_id (f.string_child ("AudioProcessor"));
443 _audio_processor = 0;
447 /* This method is the only one that can return notes (so far) */
448 _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
450 /* Write backtraces to this film's directory, until another film is loaded */
451 set_backtrace_file (file ("backtrace.txt"));
457 /** Given a directory name, return its full path within the Film's directory.
458 * The directory (and its parents) will be created if they do not exist.
460 boost::filesystem::path
461 Film::dir (boost::filesystem::path d) const
463 boost::filesystem::path p;
467 boost::filesystem::create_directories (p);
472 /** Given a file or directory name, return its full path within the Film's directory.
473 * Any required parent directories will be created.
475 boost::filesystem::path
476 Film::file (boost::filesystem::path f) const
478 boost::filesystem::path p;
482 boost::filesystem::create_directories (p.parent_path ());
487 /** @return a ISDCF-compliant name for a DCP of this film */
489 Film::isdcf_name (bool if_created_now) const
493 string raw_name = name ();
495 /* Split the raw name up into words */
496 vector<string> words;
497 split (words, raw_name, is_any_of (" "));
501 /* Add each word to fixed_name */
502 for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
505 /* First letter is always capitalised */
506 w[0] = toupper (w[0]);
508 /* Count caps in w */
510 for (size_t i = 0; i < w.size(); ++i) {
511 if (isupper (w[i])) {
516 /* If w is all caps make the rest of it lower case, otherwise
519 if (caps == w.size ()) {
520 for (size_t i = 1; i < w.size(); ++i) {
521 w[i] = tolower (w[i]);
525 for (size_t i = 0; i < w.size(); ++i) {
530 if (fixed_name.length() > 14) {
531 fixed_name = fixed_name.substr (0, 14);
536 if (dcp_content_type()) {
537 d << "_" << dcp_content_type()->isdcf_name();
538 d << "-" << isdcf_metadata().content_version;
541 ISDCFMetadata const dm = isdcf_metadata ();
543 if (dm.temp_version) {
547 if (dm.pre_release) {
555 if (!dm.chain.empty ()) {
556 d << "-" << dm.chain;
563 if (dm.two_d_version_of_three_d) {
567 if (!dm.mastered_luminance.empty ()) {
568 d << "-" << dm.mastered_luminance;
571 if (video_frame_rate() != 24) {
572 d << "-" << video_frame_rate();
576 d << "_" << container()->isdcf_name();
579 ContentList cl = content ();
581 /* XXX: this uses the first bit of content only */
583 /* The standard says we don't do this for trailers, for some strange reason */
584 if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
585 Ratio const * content_ratio = 0;
586 for (ContentList::iterator i = cl.begin(); i != cl.end(); ++i) {
587 shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*i);
589 /* Here's the first piece of video content */
590 if (vc->scale().ratio ()) {
591 content_ratio = vc->scale().ratio ();
593 content_ratio = Ratio::from_ratio (vc->video_size().ratio ());
599 if (content_ratio && content_ratio != container()) {
600 d << "-" << content_ratio->isdcf_name();
604 if (!dm.audio_language.empty ()) {
605 d << "_" << dm.audio_language;
606 if (!dm.subtitle_language.empty()) {
607 d << "-" << dm.subtitle_language;
613 if (!dm.territory.empty ()) {
614 d << "_" << dm.territory;
615 if (!dm.rating.empty ()) {
616 d << "-" << dm.rating;
620 /* Find all mapped channels */
625 if (audio_processor ()) {
626 /* Processors are mapped 1:1 to DCP outputs so we can guess the number of LFE/
627 non-LFE from the channel counts.
629 non_lfe = audio_processor()->out_channels ();
636 for (ContentList::const_iterator i = cl.begin(); i != cl.end(); ++i) {
637 shared_ptr<const AudioContent> ac = dynamic_pointer_cast<const AudioContent> (*i);
639 list<int> c = ac->audio_mapping().mapped_output_channels ();
640 copy (c.begin(), c.end(), back_inserter (mapped));
649 for (list<int>::const_iterator i = mapped.begin(); i != mapped.end(); ++i) {
650 if (*i >= audio_channels()) {
651 /* This channel is mapped but is not included in the DCP */
655 if (static_cast<dcp::Channel> (*i) == dcp::LFE) {
664 d << "_" << non_lfe << lfe;
669 d << "_" << resolution_to_string (_resolution);
671 if (!dm.studio.empty ()) {
672 d << "_" << dm.studio;
675 if (if_created_now) {
676 d << "_" << boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
678 d << "_" << boost::gregorian::to_iso_string (_isdcf_date);
681 if (!dm.facility.empty ()) {
682 d << "_" << dm.facility;
695 if (!dm.package_type.empty ()) {
696 d << "_" << dm.package_type;
702 /** @return name to give the DCP */
704 Film::dcp_name (bool if_created_now) const
707 if (use_isdcf_name()) {
708 unfiltered = isdcf_name (if_created_now);
710 unfiltered = name ();
713 /* Filter out `bad' characters which cause problems with some systems.
714 There's no apparent list of what really is allowed, so this is a guess.
718 string const allowed = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_";
719 for (size_t i = 0; i < unfiltered.size(); ++i) {
720 if (allowed.find (unfiltered[i]) != string::npos) {
721 filtered += unfiltered[i];
729 Film::set_directory (boost::filesystem::path d)
736 Film::set_name (string n)
739 signal_changed (NAME);
743 Film::set_use_isdcf_name (bool u)
746 signal_changed (USE_ISDCF_NAME);
750 Film::set_dcp_content_type (DCPContentType const * t)
752 _dcp_content_type = t;
753 signal_changed (DCP_CONTENT_TYPE);
757 Film::set_container (Ratio const * c)
760 signal_changed (CONTAINER);
764 Film::set_resolution (Resolution r)
767 signal_changed (RESOLUTION);
771 Film::set_j2k_bandwidth (int b)
774 signal_changed (J2K_BANDWIDTH);
778 Film::set_isdcf_metadata (ISDCFMetadata m)
781 signal_changed (ISDCF_METADATA);
785 Film::set_video_frame_rate (int f)
787 _video_frame_rate = f;
788 signal_changed (VIDEO_FRAME_RATE);
792 Film::set_audio_channels (int c)
795 signal_changed (AUDIO_CHANNELS);
799 Film::set_three_d (bool t)
802 signal_changed (THREE_D);
806 Film::set_interop (bool i)
809 signal_changed (INTEROP);
813 Film::set_audio_processor (AudioProcessor const * processor)
815 _audio_processor = processor;
816 signal_changed (AUDIO_PROCESSOR);
817 signal_changed (AUDIO_CHANNELS);
821 Film::signal_changed (Property p)
827 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
829 case Film::VIDEO_FRAME_RATE:
830 case Film::SEQUENCE_VIDEO:
831 _playlist->maybe_sequence_video ();
837 emit (boost::bind (boost::ref (Changed), p));
841 Film::set_isdcf_date_today ()
843 _isdcf_date = boost::gregorian::day_clock::local_day ();
846 boost::filesystem::path
847 Film::j2c_path (int f, Eyes e, bool t) const
849 boost::filesystem::path p;
851 p /= video_identifier ();
855 s << setfill('0') << f;
857 if (e == EYES_LEFT) {
859 } else if (e == EYES_RIGHT) {
873 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
877 vector<CPLSummary> out;
879 boost::filesystem::path const dir = directory ();
880 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
882 boost::filesystem::is_directory (*i) &&
883 i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
891 i->path().leaf().string(),
892 dcp.cpls().front()->id(),
893 dcp.cpls().front()->annotation_text(),
894 dcp.cpls().front()->file()
907 Film::set_signed (bool s)
910 signal_changed (SIGNED);
914 Film::set_encrypted (bool e)
917 signal_changed (ENCRYPTED);
921 Film::set_key (dcp::Key key)
924 signal_changed (KEY);
928 Film::content () const
930 return _playlist->content ();
934 Film::examine_content (shared_ptr<Content> c)
936 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c));
937 JobManager::instance()->add (j);
941 Film::examine_and_add_content (shared_ptr<Content> c)
943 if (dynamic_pointer_cast<FFmpegContent> (c)) {
944 run_ffprobe (c->path(0), file ("ffprobe.log"), _log);
947 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c));
949 _job_connections.push_back (
950 j->Finished.connect (bind (&Film::maybe_add_content, this, boost::weak_ptr<Job> (j), boost::weak_ptr<Content> (c)))
953 JobManager::instance()->add (j);
957 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c)
959 shared_ptr<Job> job = j.lock ();
960 if (!job || !job->finished_ok ()) {
964 shared_ptr<Content> content = c.lock ();
966 add_content (content);
971 Film::add_content (shared_ptr<Content> c)
973 /* Add video content after any existing content */
974 if (dynamic_pointer_cast<VideoContent> (c)) {
975 c->set_position (_playlist->video_end ());
982 Film::remove_content (shared_ptr<Content> c)
984 _playlist->remove (c);
988 Film::move_content_earlier (shared_ptr<Content> c)
990 _playlist->move_earlier (c);
994 Film::move_content_later (shared_ptr<Content> c)
996 _playlist->move_later (c);
1000 Film::length () const
1002 return _playlist->length ();
1006 Film::best_video_frame_rate () const
1008 return _playlist->best_dcp_frame_rate ();
1012 Film::active_frame_rate_change (DCPTime t) const
1014 return _playlist->active_frame_rate_change (t, video_frame_rate ());
1018 Film::playlist_content_changed (boost::weak_ptr<Content> c, int p, bool frequent)
1020 if (p == VideoContentProperty::VIDEO_FRAME_RATE) {
1021 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
1022 } else if (p == AudioContentProperty::AUDIO_STREAMS) {
1023 signal_changed (NAME);
1026 emit (boost::bind (boost::ref (ContentChanged), c, p, frequent));
1030 Film::playlist_changed ()
1032 signal_changed (CONTENT);
1033 signal_changed (NAME);
1037 Film::audio_frame_rate () const
1044 Film::set_sequence_video (bool s)
1046 _sequence_video = s;
1047 _playlist->set_sequence_video (s);
1048 signal_changed (SEQUENCE_VIDEO);
1051 /** @return Size of the largest possible image in whatever resolution we are using */
1053 Film::full_frame () const
1055 switch (_resolution) {
1057 return dcp::Size (2048, 1080);
1059 return dcp::Size (4096, 2160);
1062 DCPOMATIC_ASSERT (false);
1063 return dcp::Size ();
1066 /** @return Size of the frame */
1068 Film::frame_size () const
1070 return fit_ratio_within (container()->ratio(), full_frame ());
1075 dcp::Certificate target,
1076 boost::filesystem::path cpl_file,
1077 dcp::LocalTime from,
1078 dcp::LocalTime until,
1079 dcp::Formulation formulation
1082 shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1083 shared_ptr<const dcp::Signer> signer = Config::instance()->signer();
1084 if (!signer->valid ()) {
1085 throw InvalidSignerError ();
1088 return dcp::DecryptedKDM (
1089 cpl, key(), from, until, "DCP-o-matic", cpl->content_title_text(), dcp::LocalTime().as_string()
1090 ).encrypt (signer, target, formulation);
1093 list<dcp::EncryptedKDM>
1095 list<shared_ptr<Screen> > screens,
1096 boost::filesystem::path dcp,
1097 dcp::LocalTime from,
1098 dcp::LocalTime until,
1099 dcp::Formulation formulation
1102 list<dcp::EncryptedKDM> kdms;
1104 for (list<shared_ptr<Screen> >::iterator i = screens.begin(); i != screens.end(); ++i) {
1105 if ((*i)->certificate) {
1106 kdms.push_back (make_kdm ((*i)->certificate.get(), dcp, from, until, formulation));
1113 /** @return The approximate disk space required to encode a DCP of this film with the
1114 * current settings, in bytes.
1117 Film::required_disk_space () const
1119 return uint64_t (j2k_bandwidth() / 8) * length().seconds();
1122 /** This method checks the disk that the Film is on and tries to decide whether or not
1123 * there will be enough space to make a DCP for it. If so, true is returned; if not,
1124 * false is returned and required and availabe are filled in with the amount of disk space
1125 * required and available respectively (in Gb).
1127 * Note: the decision made by this method isn't, of course, 100% reliable.
1130 Film::should_be_enough_disk_space (double& required, double& available, bool& can_hard_link) const
1132 /* Create a test file and see if we can hard-link it */
1133 boost::filesystem::path test = internal_video_asset_dir() / "test";
1134 boost::filesystem::path test2 = internal_video_asset_dir() / "test2";
1135 can_hard_link = true;
1136 FILE* f = fopen_boost (test, "w");
1139 boost::system::error_code ec;
1140 boost::filesystem::create_hard_link (test, test2, ec);
1142 can_hard_link = false;
1144 boost::filesystem::remove (test);
1145 boost::filesystem::remove (test2);
1148 boost::filesystem::space_info s = boost::filesystem::space (internal_video_asset_dir ());
1149 required = double (required_disk_space ()) / 1073741824.0f;
1150 if (!can_hard_link) {
1153 available = double (s.available) / 1073741824.0f;
1154 return (available - required) > 1;
1158 Film::subtitle_language () const
1160 set<string> languages;
1162 ContentList cl = content ();
1163 BOOST_FOREACH (shared_ptr<Content>& c, cl) {
1164 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c);
1166 languages.insert (sc->subtitle_language ());
1171 BOOST_FOREACH (string s, languages) {
1172 if (!all.empty ()) {
1182 /** Change the gains of the supplied AudioMapping to make it a default
1183 * for this film. The defaults are guessed based on what processor (if any)
1184 * is in use and the number of input channels.
1187 Film::make_audio_mapping_default (AudioMapping& mapping) const
1189 if (audio_processor ()) {
1190 audio_processor()->make_audio_mapping_default (mapping);
1192 mapping.make_zero ();
1193 if (mapping.input_channels() == 1) {
1194 /* Mono -> Centre */
1195 mapping.set (0, static_cast<int> (dcp::CENTRE), 1);
1198 for (int i = 0; i < min (mapping.input_channels(), mapping.output_channels()); ++i) {
1199 mapping.set (i, i, 1);
1205 /** @return The names of the channels that audio contents' outputs are passed into;
1206 * this is either the DCP or a AudioProcessor.
1209 Film::audio_output_names () const
1211 if (audio_processor ()) {
1212 return audio_processor()->input_names ();
1216 n.push_back (_("L"));
1217 n.push_back (_("R"));
1218 n.push_back (_("C"));
1219 n.push_back (_("Lfe"));
1220 n.push_back (_("Ls"));
1221 n.push_back (_("Rs"));
1222 n.push_back (_("HI"));
1223 n.push_back (_("VI"));
1224 n.push_back (_("Lc"));
1225 n.push_back (_("Rc"));
1226 n.push_back (_("BsL"));
1227 n.push_back (_("BsR"));
1229 return vector<string> (n.begin(), n.begin() + audio_channels ());
1233 Film::repeat_content (ContentList c, int n)
1235 _playlist->repeat (c, n);
1239 Film::remove_content (ContentList c)
1241 _playlist->remove (c);