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 "ui_signaller.h"
40 #include "dcp_content_type.h"
44 #include "safe_stringstream.h"
45 #include <libcxml/cxml.h>
47 #include <dcp/signer.h>
49 #include <dcp/local_time.h>
50 #include <dcp/raw_convert.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>
80 using boost::shared_ptr;
81 using boost::weak_ptr;
82 using boost::dynamic_pointer_cast;
83 using boost::to_upper_copy;
84 using boost::ends_with;
85 using boost::starts_with;
86 using boost::optional;
87 using boost::is_any_of;
90 using dcp::raw_convert;
91 using dcp::raw_convert;
93 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
94 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, Log::TYPE_GENERAL);
97 * AudioMapping XML changed.
99 * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
101 * Use <Scale> tag in <VideoContent> rather than <Ratio>.
105 * Subtitle X and Y scale.
107 * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
110 int const Film::current_state_version = 32;
112 /** Construct a Film object in a given directory.
114 * @param dir Film directory.
117 Film::Film (boost::filesystem::path dir, bool log)
118 : _playlist (new Playlist)
119 , _use_isdcf_name (true)
120 , _dcp_content_type (Config::instance()->default_dcp_content_type ())
121 , _container (Config::instance()->default_container ())
122 , _resolution (RESOLUTION_2K)
123 , _scaler (Scaler::from_id ("bicubic"))
126 , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
127 , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
128 , _video_frame_rate (24)
129 , _audio_channels (6)
131 , _sequence_video (true)
133 , _burn_subtitles (false)
134 , _state_version (current_state_version)
137 set_isdcf_date_today ();
139 _playlist->Changed.connect (bind (&Film::playlist_changed, this));
140 _playlist->ContentChanged.connect (bind (&Film::playlist_content_changed, this, _1, _2));
142 /* Make state.directory a complete path without ..s (where possible)
143 (Code swiped from Adam Bowen on stackoverflow)
146 boost::filesystem::path p (boost::filesystem::system_complete (dir));
147 boost::filesystem::path result;
148 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
150 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
153 result = result.parent_path ();
155 } else if (*i != ".") {
160 set_directory (result.make_preferred ());
162 _log.reset (new FileLog (file ("log")));
164 _log.reset (new NullLog);
167 _playlist->set_sequence_video (_sequence_video);
171 Film::video_identifier () const
173 DCPOMATIC_ASSERT (container ());
176 s.imbue (std::locale::classic ());
178 s << container()->id()
179 << "_" << resolution_to_string (_resolution)
180 << "_" << _playlist->video_identifier()
181 << "_" << _video_frame_rate
182 << "_" << scaler()->id()
183 << "_" << j2k_bandwidth();
197 if (_burn_subtitles) {
208 /** @return The path to the directory to write video frame info files to */
209 boost::filesystem::path
210 Film::info_dir () const
212 boost::filesystem::path p;
214 p /= video_identifier ();
218 boost::filesystem::path
219 Film::internal_video_mxf_dir () const
221 return dir ("video");
224 boost::filesystem::path
225 Film::internal_video_mxf_filename () const
227 return video_identifier() + ".mxf";
230 boost::filesystem::path
231 Film::video_mxf_filename () const
233 return filename_safe_name() + "_video.mxf";
236 boost::filesystem::path
237 Film::audio_mxf_filename () const
239 return filename_safe_name() + "_audio.mxf";
242 boost::filesystem::path
243 Film::subtitle_xml_filename () const
245 return filename_safe_name() + "_subtitle.xml";
249 Film::filename_safe_name () const
251 string const n = name ();
253 for (size_t i = 0; i < n.length(); ++i) {
254 if (isalnum (n[i])) {
264 boost::filesystem::path
265 Film::audio_analysis_dir () const
267 return dir ("analysis");
270 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
274 set_isdcf_date_today ();
276 if (dcp_name().find ("/") != string::npos) {
277 throw BadSettingError (_("name"), _("cannot contain slashes"));
280 LOG_GENERAL ("DCP-o-matic %1 git %2 using %3", dcpomatic_version, dcpomatic_git_commit, dependency_version_summary());
284 gethostname (buffer, sizeof (buffer));
285 LOG_GENERAL ("Starting to make DCP on %1", buffer);
288 ContentList cl = content ();
289 for (ContentList::const_iterator i = cl.begin(); i != cl.end(); ++i) {
290 LOG_GENERAL ("Content: %1", (*i)->technical_summary());
292 LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
293 LOG_GENERAL ("%1 threads", Config::instance()->num_local_encoding_threads());
294 LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
295 #ifdef DCPOMATIC_DEBUG
296 LOG_GENERAL_NC ("DCP-o-matic built in debug mode.");
298 LOG_GENERAL_NC ("DCP-o-matic built in optimised mode.");
301 LOG_GENERAL_NC ("libdcp built in debug mode.");
303 LOG_GENERAL_NC ("libdcp built in optimised mode.");
306 #ifdef DCPOMATIC_WINDOWS
308 info.dwOSVersionInfoSize = sizeof (info);
309 GetVersionEx (&info);
310 LOG_GENERAL ("Windows version %1.%2.%3 SP %4", info.dwMajorVersion, info.dwMinorVersion, info.dwBuildNumber, info.szCSDVersion);
313 LOG_GENERAL ("CPU: %1, %2 processors", cpu_info(), boost::thread::hardware_concurrency ());
314 list<pair<string, string> > const m = mount_info ();
315 for (list<pair<string, string> >::const_iterator i = m.begin(); i != m.end(); ++i) {
316 LOG_GENERAL ("Mount: %1 %2", i->first, i->second);
319 if (container() == 0) {
320 throw MissingSettingError (_("container"));
323 if (content().empty()) {
324 throw StringError (_("You must add some content to the DCP before creating it"));
327 if (dcp_content_type() == 0) {
328 throw MissingSettingError (_("content type"));
331 if (name().empty()) {
332 throw MissingSettingError (_("name"));
335 JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this())));
338 /** Start a job to send our DCP to the configured TMS */
340 Film::send_dcp_to_tms ()
342 shared_ptr<Job> j (new SCPDCPJob (shared_from_this()));
343 JobManager::instance()->add (j);
346 /** Count the number of frames that have been encoded for this film.
347 * @return frame count.
350 Film::encoded_frames () const
352 if (container() == 0) {
357 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (info_dir ()); i != boost::filesystem::directory_iterator(); ++i) {
359 boost::this_thread::interruption_point ();
365 shared_ptr<xmlpp::Document>
366 Film::metadata () const
368 shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
369 xmlpp::Element* root = doc->create_root_node ("Metadata");
371 root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
372 root->add_child("Name")->add_child_text (_name);
373 root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
375 if (_dcp_content_type) {
376 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
380 root->add_child("Container")->add_child_text (_container->id ());
383 root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
384 root->add_child("Scaler")->add_child_text (_scaler->id ());
385 root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
386 _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
387 root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
388 root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
389 root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
390 root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
391 root->add_child("SequenceVideo")->add_child_text (_sequence_video ? "1" : "0");
392 root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
393 root->add_child("BurnSubtitles")->add_child_text (_burn_subtitles ? "1" : "0");
394 root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
395 root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
396 root->add_child("Key")->add_child_text (_key.hex ());
397 _playlist->as_xml (root->add_child ("Playlist"));
402 /** Write state to our `metadata' file */
404 Film::write_metadata () const
406 boost::filesystem::create_directories (directory ());
407 shared_ptr<xmlpp::Document> doc = metadata ();
408 doc->write_to_file_formatted (file("metadata.xml").string ());
412 /** Read state from our metadata file.
413 * @return Notes about things that the user should know about, or empty.
416 Film::read_metadata ()
418 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file ("metadata.xml"))) {
419 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!"));
422 cxml::Document f ("Metadata");
423 f.read_file (file ("metadata.xml"));
425 _state_version = f.number_child<int> ("Version");
426 if (_state_version > current_state_version) {
427 throw StringError (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version. Sorry!"));
430 _name = f.string_child ("Name");
431 if (_state_version >= 9) {
432 _use_isdcf_name = f.bool_child ("UseISDCFName");
433 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
434 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
436 _use_isdcf_name = f.bool_child ("UseDCIName");
437 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
438 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
442 optional<string> c = f.optional_string_child ("DCPContentType");
444 _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
449 optional<string> c = f.optional_string_child ("Container");
451 _container = Ratio::from_id (c.get ());
455 _resolution = string_to_resolution (f.string_child ("Resolution"));
456 _scaler = Scaler::from_id (f.string_child ("Scaler"));
457 _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
458 _video_frame_rate = f.number_child<int> ("VideoFrameRate");
459 _signed = f.optional_bool_child("Signed").get_value_or (true);
460 _encrypted = f.bool_child ("Encrypted");
461 _audio_channels = f.number_child<int> ("AudioChannels");
462 _sequence_video = f.bool_child ("SequenceVideo");
463 _three_d = f.bool_child ("ThreeD");
464 _interop = f.bool_child ("Interop");
465 if (_state_version >= 32) {
466 _burn_subtitles = f.bool_child ("BurnSubtitles");
468 _key = dcp::Key (f.string_child ("Key"));
471 /* This method is the only one that can return notes (so far) */
472 _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
474 /* Write backtraces to this film's directory, until another film is loaded */
475 set_backtrace_file (file ("backtrace.txt"));
481 /** Given a directory name, return its full path within the Film's directory.
482 * The directory (and its parents) will be created if they do not exist.
484 boost::filesystem::path
485 Film::dir (boost::filesystem::path d) const
487 boost::filesystem::path p;
491 boost::filesystem::create_directories (p);
496 /** Given a file or directory name, return its full path within the Film's directory.
497 * Any required parent directories will be created.
499 boost::filesystem::path
500 Film::file (boost::filesystem::path f) const
502 boost::filesystem::path p;
506 boost::filesystem::create_directories (p.parent_path ());
511 /** @return a ISDCF-compliant name for a DCP of this film */
513 Film::isdcf_name (bool if_created_now) const
517 string raw_name = name ();
519 /* Split the raw name up into words */
520 vector<string> words;
521 split (words, raw_name, is_any_of (" "));
525 /* Add each word to fixed_name */
526 for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
529 /* First letter is always capitalised */
530 w[0] = toupper (w[0]);
532 /* Count caps in w */
534 for (size_t i = 0; i < w.size(); ++i) {
535 if (isupper (w[i])) {
540 /* If w is all caps make the rest of it lower case, otherwise
543 if (caps == w.size ()) {
544 for (size_t i = 1; i < w.size(); ++i) {
545 w[i] = tolower (w[i]);
549 for (size_t i = 0; i < w.size(); ++i) {
554 if (fixed_name.length() > 14) {
555 fixed_name = fixed_name.substr (0, 14);
560 if (dcp_content_type()) {
561 d << "_" << dcp_content_type()->isdcf_name();
562 d << "-" << isdcf_metadata().content_version;
565 ISDCFMetadata const dm = isdcf_metadata ();
567 if (dm.temp_version) {
571 if (dm.pre_release) {
579 if (!dm.chain.empty ()) {
580 d << "-" << dm.chain;
587 if (dm.two_d_version_of_three_d) {
591 if (!dm.mastered_luminance.empty ()) {
592 d << "-" << dm.mastered_luminance;
595 if (video_frame_rate() != 24) {
596 d << "-" << video_frame_rate();
600 d << "_" << container()->isdcf_name();
603 /* XXX: this uses the first bit of content only */
605 /* The standard says we don't do this for trailers, for some strange reason */
606 if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
607 ContentList cl = content ();
608 Ratio const * content_ratio = 0;
609 for (ContentList::iterator i = cl.begin(); i != cl.end(); ++i) {
610 shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*i);
612 /* Here's the first piece of video content */
613 if (vc->scale().ratio ()) {
614 content_ratio = vc->scale().ratio ();
616 content_ratio = Ratio::from_ratio (vc->video_size().ratio ());
622 if (content_ratio && content_ratio != container()) {
623 d << "-" << content_ratio->isdcf_name();
627 if (!dm.audio_language.empty ()) {
628 d << "_" << dm.audio_language;
629 if (!dm.subtitle_language.empty()) {
630 d << "-" << dm.subtitle_language;
636 if (!dm.territory.empty ()) {
637 d << "_" << dm.territory;
638 if (!dm.rating.empty ()) {
639 d << "-" << dm.rating;
643 switch (audio_channels ()) {
666 d << "_" << resolution_to_string (_resolution);
668 if (!dm.studio.empty ()) {
669 d << "_" << dm.studio;
672 if (if_created_now) {
673 d << "_" << boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
675 d << "_" << boost::gregorian::to_iso_string (_isdcf_date);
678 if (!dm.facility.empty ()) {
679 d << "_" << dm.facility;
692 if (!dm.package_type.empty ()) {
693 d << "_" << dm.package_type;
699 /** @return name to give the DCP */
701 Film::dcp_name (bool if_created_now) const
703 if (use_isdcf_name()) {
704 return isdcf_name (if_created_now);
711 Film::set_directory (boost::filesystem::path d)
718 Film::set_name (string n)
721 signal_changed (NAME);
725 Film::set_use_isdcf_name (bool u)
728 signal_changed (USE_ISDCF_NAME);
732 Film::set_dcp_content_type (DCPContentType const * t)
734 _dcp_content_type = t;
735 signal_changed (DCP_CONTENT_TYPE);
739 Film::set_container (Ratio const * c)
742 signal_changed (CONTAINER);
746 Film::set_resolution (Resolution r)
749 signal_changed (RESOLUTION);
753 Film::set_scaler (Scaler const * s)
756 signal_changed (SCALER);
760 Film::set_j2k_bandwidth (int b)
763 signal_changed (J2K_BANDWIDTH);
767 Film::set_isdcf_metadata (ISDCFMetadata m)
770 signal_changed (ISDCF_METADATA);
774 Film::set_video_frame_rate (int f)
776 _video_frame_rate = f;
777 signal_changed (VIDEO_FRAME_RATE);
781 Film::set_audio_channels (int c)
784 signal_changed (AUDIO_CHANNELS);
788 Film::set_three_d (bool t)
791 signal_changed (THREE_D);
795 Film::set_interop (bool i)
798 signal_changed (INTEROP);
802 Film::set_burn_subtitles (bool b)
805 signal_changed (BURN_SUBTITLES);
809 Film::signal_changed (Property p)
815 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
817 case Film::VIDEO_FRAME_RATE:
818 case Film::SEQUENCE_VIDEO:
819 _playlist->maybe_sequence_video ();
826 ui_signaller->emit (boost::bind (boost::ref (Changed), p));
831 Film::set_isdcf_date_today ()
833 _isdcf_date = boost::gregorian::day_clock::local_day ();
836 boost::filesystem::path
837 Film::info_path (int f, Eyes e) const
839 boost::filesystem::path p;
844 s << setfill('0') << f;
846 if (e == EYES_LEFT) {
848 } else if (e == EYES_RIGHT) {
856 /* info_dir() will already have added any initial bit of the path,
857 so don't call file() on this.
862 boost::filesystem::path
863 Film::j2c_path (int f, Eyes e, bool t) const
865 boost::filesystem::path p;
867 p /= video_identifier ();
871 s << setfill('0') << f;
873 if (e == EYES_LEFT) {
875 } else if (e == EYES_RIGHT) {
889 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
893 vector<CPLSummary> out;
895 boost::filesystem::path const dir = directory ();
896 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
898 boost::filesystem::is_directory (*i) &&
899 i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
907 i->path().leaf().string(),
908 dcp.cpls().front()->id(),
909 dcp.cpls().front()->annotation_text(),
910 dcp.cpls().front()->file()
923 Film::make_player () const
925 return shared_ptr<Player> (new Player (shared_from_this (), _playlist));
929 Film::set_signed (bool s)
932 signal_changed (SIGNED);
936 Film::set_encrypted (bool e)
939 signal_changed (ENCRYPTED);
943 Film::playlist () const
949 Film::content () const
951 return _playlist->content ();
955 Film::examine_content (shared_ptr<Content> c, bool calculate_digest)
957 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c, calculate_digest));
958 JobManager::instance()->add (j);
962 Film::examine_and_add_content (shared_ptr<Content> c, bool calculate_digest)
964 if (dynamic_pointer_cast<FFmpegContent> (c)) {
965 run_ffprobe (c->path(0), file ("ffprobe.log"), _log);
968 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c, calculate_digest));
969 j->Finished.connect (bind (&Film::maybe_add_content, this, boost::weak_ptr<Job> (j), boost::weak_ptr<Content> (c)));
970 JobManager::instance()->add (j);
974 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c)
976 shared_ptr<Job> job = j.lock ();
977 if (!job || !job->finished_ok ()) {
981 shared_ptr<Content> content = c.lock ();
983 add_content (content);
988 Film::add_content (shared_ptr<Content> c)
990 /* Add video content after any existing content */
991 if (dynamic_pointer_cast<VideoContent> (c)) {
992 c->set_position (_playlist->video_end ());
999 Film::remove_content (shared_ptr<Content> c)
1001 _playlist->remove (c);
1005 Film::move_content_earlier (shared_ptr<Content> c)
1007 _playlist->move_earlier (c);
1011 Film::move_content_later (shared_ptr<Content> c)
1013 _playlist->move_later (c);
1017 Film::length () const
1019 return _playlist->length ();
1023 Film::best_video_frame_rate () const
1025 return _playlist->best_dcp_frame_rate ();
1029 Film::active_frame_rate_change (DCPTime t) const
1031 return _playlist->active_frame_rate_change (t, video_frame_rate ());
1035 Film::playlist_content_changed (boost::weak_ptr<Content> c, int p)
1037 if (p == VideoContentProperty::VIDEO_FRAME_RATE) {
1038 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
1042 ui_signaller->emit (boost::bind (boost::ref (ContentChanged), c, p));
1047 Film::playlist_changed ()
1049 signal_changed (CONTENT);
1053 Film::audio_frame_rate () const
1060 Film::set_sequence_video (bool s)
1062 _sequence_video = s;
1063 _playlist->set_sequence_video (s);
1064 signal_changed (SEQUENCE_VIDEO);
1067 /** @return Size of the largest possible image in whatever resolution we are using */
1069 Film::full_frame () const
1071 switch (_resolution) {
1073 return dcp::Size (2048, 1080);
1075 return dcp::Size (4096, 2160);
1078 DCPOMATIC_ASSERT (false);
1079 return dcp::Size ();
1082 /** @return Size of the frame */
1084 Film::frame_size () const
1086 return fit_ratio_within (container()->ratio(), full_frame (), 1);
1091 dcp::Certificate target,
1092 boost::filesystem::path cpl_file,
1093 dcp::LocalTime from,
1094 dcp::LocalTime until,
1095 dcp::Formulation formulation
1098 shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1099 shared_ptr<const dcp::Signer> signer = Config::instance()->signer();
1100 if (!signer->valid ()) {
1101 throw InvalidSignerError ();
1104 return dcp::DecryptedKDM (
1105 cpl, key(), from, until, "DCP-o-matic", cpl->content_title_text(), dcp::LocalTime().as_string()
1106 ).encrypt (signer, target, formulation);
1109 list<dcp::EncryptedKDM>
1111 list<shared_ptr<Screen> > screens,
1112 boost::filesystem::path dcp,
1113 dcp::LocalTime from,
1114 dcp::LocalTime until,
1115 dcp::Formulation formulation
1118 list<dcp::EncryptedKDM> kdms;
1120 for (list<shared_ptr<Screen> >::iterator i = screens.begin(); i != screens.end(); ++i) {
1121 if ((*i)->certificate) {
1122 kdms.push_back (make_kdm ((*i)->certificate.get(), dcp, from, until, formulation));
1129 /** @return The approximate disk space required to encode a DCP of this film with the
1130 * current settings, in bytes.
1133 Film::required_disk_space () const
1135 return uint64_t (j2k_bandwidth() / 8) * length().seconds();
1138 /** This method checks the disk that the Film is on and tries to decide whether or not
1139 * there will be enough space to make a DCP for it. If so, true is returned; if not,
1140 * false is returned and required and availabe are filled in with the amount of disk space
1141 * required and available respectively (in Gb).
1143 * Note: the decision made by this method isn't, of course, 100% reliable.
1146 Film::should_be_enough_disk_space (double& required, double& available) const
1148 boost::filesystem::space_info s = boost::filesystem::space (internal_video_mxf_dir ());
1149 required = double (required_disk_space ()) / 1073741824.0f;
1150 available = double (s.available) / 1073741824.0f;
1151 return (available - required) > 1;
1155 Film::subtitle_language () const
1157 set<string> languages;
1159 ContentList cl = content ();
1160 BOOST_FOREACH (shared_ptr<Content>& c, cl) {
1161 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c);
1163 languages.insert (sc->subtitle_language ());
1168 BOOST_FOREACH (string s, languages) {
1169 if (!all.empty ()) {