2 Copyright (C) 2012-2014 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.
23 #include "job_manager.h"
24 #include "transcode_job.h"
25 #include "scp_dcp_job.h"
27 #include "exceptions.h"
28 #include "examine_content_job.h"
32 #include "ui_signaller.h"
35 #include "dcp_content_type.h"
39 #include "safe_stringstream.h"
40 #include <libcxml/cxml.h>
42 #include <dcp/signer.h>
44 #include <dcp/local_time.h>
45 #include <dcp/raw_convert.h>
46 #include <dcp/decrypted_kdm.h>
47 #include <libxml++/libxml++.h>
48 #include <boost/filesystem.hpp>
49 #include <boost/algorithm/string.hpp>
50 #include <boost/lexical_cast.hpp>
51 #include <boost/foreach.hpp>
74 using boost::shared_ptr;
75 using boost::weak_ptr;
76 using boost::dynamic_pointer_cast;
77 using boost::to_upper_copy;
78 using boost::ends_with;
79 using boost::starts_with;
80 using boost::optional;
81 using boost::is_any_of;
84 using dcp::raw_convert;
85 using dcp::raw_convert;
87 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
88 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, Log::TYPE_GENERAL);
91 * AudioMapping XML changed.
93 * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
95 * Use <Scale> tag in <VideoContent> rather than <Ratio>.
99 * Subtitle X and Y scale.
101 * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
104 int const Film::current_state_version = 32;
106 /** Construct a Film object in a given directory.
108 * @param dir Film directory.
111 Film::Film (boost::filesystem::path dir, bool log)
112 : _playlist (new Playlist)
113 , _use_isdcf_name (true)
114 , _dcp_content_type (Config::instance()->default_dcp_content_type ())
115 , _container (Config::instance()->default_container ())
116 , _resolution (RESOLUTION_2K)
117 , _scaler (Scaler::from_id ("bicubic"))
120 , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
121 , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
122 , _video_frame_rate (24)
123 , _audio_channels (6)
125 , _sequence_video (true)
127 , _burn_subtitles (false)
128 , _state_version (current_state_version)
131 set_isdcf_date_today ();
133 _playlist->Changed.connect (bind (&Film::playlist_changed, this));
134 _playlist->ContentChanged.connect (bind (&Film::playlist_content_changed, this, _1, _2));
136 /* Make state.directory a complete path without ..s (where possible)
137 (Code swiped from Adam Bowen on stackoverflow)
140 boost::filesystem::path p (boost::filesystem::system_complete (dir));
141 boost::filesystem::path result;
142 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
144 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
147 result = result.parent_path ();
149 } else if (*i != ".") {
154 set_directory (result.make_preferred ());
156 _log.reset (new FileLog (file ("log")));
158 _log.reset (new NullLog);
161 _playlist->set_sequence_video (_sequence_video);
165 Film::video_identifier () const
167 DCPOMATIC_ASSERT (container ());
170 s.imbue (std::locale::classic ());
172 s << container()->id()
173 << "_" << resolution_to_string (_resolution)
174 << "_" << _playlist->video_identifier()
175 << "_" << _video_frame_rate
176 << "_" << scaler()->id()
177 << "_" << j2k_bandwidth();
191 if (_burn_subtitles) {
202 /** @return The path to the directory to write video frame info files to */
203 boost::filesystem::path
204 Film::info_dir () const
206 boost::filesystem::path p;
208 p /= video_identifier ();
212 boost::filesystem::path
213 Film::internal_video_mxf_dir () const
215 return dir ("video");
218 boost::filesystem::path
219 Film::internal_video_mxf_filename () const
221 return video_identifier() + ".mxf";
224 boost::filesystem::path
225 Film::video_mxf_filename () const
227 return filename_safe_name() + "_video.mxf";
230 boost::filesystem::path
231 Film::audio_mxf_filename () const
233 return filename_safe_name() + "_audio.mxf";
236 boost::filesystem::path
237 Film::subtitle_xml_filename () const
239 return filename_safe_name() + "_subtitle.xml";
243 Film::filename_safe_name () const
245 string const n = name ();
247 for (size_t i = 0; i < n.length(); ++i) {
248 if (isalnum (n[i])) {
258 boost::filesystem::path
259 Film::audio_analysis_dir () const
261 return dir ("analysis");
264 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
268 set_isdcf_date_today ();
270 if (dcp_name().find ("/") != string::npos) {
271 throw BadSettingError (_("name"), _("cannot contain slashes"));
274 LOG_GENERAL ("DCP-o-matic %1 git %2 using %3", dcpomatic_version, dcpomatic_git_commit, dependency_version_summary());
278 gethostname (buffer, sizeof (buffer));
279 LOG_GENERAL ("Starting to make DCP on %1", buffer);
282 ContentList cl = content ();
283 for (ContentList::const_iterator i = cl.begin(); i != cl.end(); ++i) {
284 LOG_GENERAL ("Content: %1", (*i)->technical_summary());
286 LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
287 LOG_GENERAL ("%1 threads", Config::instance()->num_local_encoding_threads());
288 LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
289 #ifdef DCPOMATIC_DEBUG
290 LOG_GENERAL_NC ("DCP-o-matic built in debug mode.");
292 LOG_GENERAL_NC ("DCP-o-matic built in optimised mode.");
295 LOG_GENERAL_NC ("libdcp built in debug mode.");
297 LOG_GENERAL_NC ("libdcp built in optimised mode.");
300 #ifdef DCPOMATIC_WINDOWS
302 info.dwOSVersionInfoSize = sizeof (info);
303 GetVersionEx (&info);
304 LOG_GENERAL ("Windows version %1.%2.%3 SP %4", info.dwMajorVersion, info.dwMinorVersion, info.dwBuildNumber, info.szCSDVersion);
307 LOG_GENERAL ("CPU: %1, %2 processors", cpu_info(), boost::thread::hardware_concurrency ());
308 list<pair<string, string> > const m = mount_info ();
309 for (list<pair<string, string> >::const_iterator i = m.begin(); i != m.end(); ++i) {
310 LOG_GENERAL ("Mount: %1 %2", i->first, i->second);
313 if (container() == 0) {
314 throw MissingSettingError (_("container"));
317 if (content().empty()) {
318 throw StringError (_("You must add some content to the DCP before creating it"));
321 if (dcp_content_type() == 0) {
322 throw MissingSettingError (_("content type"));
325 if (name().empty()) {
326 throw MissingSettingError (_("name"));
329 JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this())));
332 /** Start a job to send our DCP to the configured TMS */
334 Film::send_dcp_to_tms ()
336 shared_ptr<Job> j (new SCPDCPJob (shared_from_this()));
337 JobManager::instance()->add (j);
340 /** Count the number of frames that have been encoded for this film.
341 * @return frame count.
344 Film::encoded_frames () const
346 if (container() == 0) {
351 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (info_dir ()); i != boost::filesystem::directory_iterator(); ++i) {
353 boost::this_thread::interruption_point ();
359 shared_ptr<xmlpp::Document>
360 Film::metadata () const
362 shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
363 xmlpp::Element* root = doc->create_root_node ("Metadata");
365 root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
366 root->add_child("Name")->add_child_text (_name);
367 root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
369 if (_dcp_content_type) {
370 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
374 root->add_child("Container")->add_child_text (_container->id ());
377 root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
378 root->add_child("Scaler")->add_child_text (_scaler->id ());
379 root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
380 _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
381 root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
382 root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
383 root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
384 root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
385 root->add_child("SequenceVideo")->add_child_text (_sequence_video ? "1" : "0");
386 root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
387 root->add_child("BurnSubtitles")->add_child_text (_burn_subtitles ? "1" : "0");
388 root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
389 root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
390 root->add_child("Key")->add_child_text (_key.hex ());
391 _playlist->as_xml (root->add_child ("Playlist"));
396 /** Write state to our `metadata' file */
398 Film::write_metadata () const
400 boost::filesystem::create_directories (directory ());
401 shared_ptr<xmlpp::Document> doc = metadata ();
402 doc->write_to_file_formatted (file("metadata.xml").string ());
406 /** Read state from our metadata file.
407 * @return Notes about things that the user should know about, or empty.
410 Film::read_metadata ()
412 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file ("metadata.xml"))) {
413 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!"));
416 cxml::Document f ("Metadata");
417 f.read_file (file ("metadata.xml"));
419 _state_version = f.number_child<int> ("Version");
420 if (_state_version > current_state_version) {
421 throw StringError (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version. Sorry!"));
424 _name = f.string_child ("Name");
425 if (_state_version >= 9) {
426 _use_isdcf_name = f.bool_child ("UseISDCFName");
427 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
428 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
430 _use_isdcf_name = f.bool_child ("UseDCIName");
431 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
432 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
436 optional<string> c = f.optional_string_child ("DCPContentType");
438 _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
443 optional<string> c = f.optional_string_child ("Container");
445 _container = Ratio::from_id (c.get ());
449 _resolution = string_to_resolution (f.string_child ("Resolution"));
450 _scaler = Scaler::from_id (f.string_child ("Scaler"));
451 _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
452 _video_frame_rate = f.number_child<int> ("VideoFrameRate");
453 _signed = f.optional_bool_child("Signed").get_value_or (true);
454 _encrypted = f.bool_child ("Encrypted");
455 _audio_channels = f.number_child<int> ("AudioChannels");
456 _sequence_video = f.bool_child ("SequenceVideo");
457 _three_d = f.bool_child ("ThreeD");
458 _interop = f.bool_child ("Interop");
459 if (_state_version >= 32) {
460 _burn_subtitles = f.bool_child ("BurnSubtitles");
462 _key = dcp::Key (f.string_child ("Key"));
465 /* This method is the only one that can return notes (so far) */
466 _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
468 /* Write backtraces to this film's directory, until another film is loaded */
469 set_backtrace_file (file ("backtrace.txt"));
475 /** Given a directory name, return its full path within the Film's directory.
476 * The directory (and its parents) will be created if they do not exist.
478 boost::filesystem::path
479 Film::dir (boost::filesystem::path d) const
481 boost::filesystem::path p;
485 boost::filesystem::create_directories (p);
490 /** Given a file or directory name, return its full path within the Film's directory.
491 * Any required parent directories will be created.
493 boost::filesystem::path
494 Film::file (boost::filesystem::path f) const
496 boost::filesystem::path p;
500 boost::filesystem::create_directories (p.parent_path ());
505 /** @return a ISDCF-compliant name for a DCP of this film */
507 Film::isdcf_name (bool if_created_now) const
511 string raw_name = name ();
513 /* Split the raw name up into words */
514 vector<string> words;
515 split (words, raw_name, is_any_of (" "));
519 /* Add each word to fixed_name */
520 for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
523 /* First letter is always capitalised */
524 w[0] = toupper (w[0]);
526 /* Count caps in w */
528 for (size_t i = 0; i < w.size(); ++i) {
529 if (isupper (w[i])) {
534 /* If w is all caps make the rest of it lower case, otherwise
537 if (caps == w.size ()) {
538 for (size_t i = 1; i < w.size(); ++i) {
539 w[i] = tolower (w[i]);
543 for (size_t i = 0; i < w.size(); ++i) {
548 if (fixed_name.length() > 14) {
549 fixed_name = fixed_name.substr (0, 14);
554 if (dcp_content_type()) {
555 d << "_" << dcp_content_type()->isdcf_name();
556 d << "-" << isdcf_metadata().content_version;
559 ISDCFMetadata const dm = isdcf_metadata ();
561 if (dm.temp_version) {
565 if (dm.pre_release) {
573 if (!dm.chain.empty ()) {
574 d << "-" << dm.chain;
581 if (dm.two_d_version_of_three_d) {
585 if (!dm.mastered_luminance.empty ()) {
586 d << "-" << dm.mastered_luminance;
589 if (video_frame_rate() != 24) {
590 d << "-" << video_frame_rate();
594 d << "_" << container()->isdcf_name();
597 /* XXX: this uses the first bit of content only */
599 /* The standard says we don't do this for trailers, for some strange reason */
600 if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
601 ContentList cl = content ();
602 Ratio const * content_ratio = 0;
603 for (ContentList::iterator i = cl.begin(); i != cl.end(); ++i) {
604 shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*i);
606 /* Here's the first piece of video content */
607 if (vc->scale().ratio ()) {
608 content_ratio = vc->scale().ratio ();
610 content_ratio = Ratio::from_ratio (vc->video_size().ratio ());
616 if (content_ratio && content_ratio != container()) {
617 d << "-" << content_ratio->isdcf_name();
621 if (!dm.audio_language.empty ()) {
622 d << "_" << dm.audio_language;
623 if (!dm.subtitle_language.empty()) {
624 d << "-" << dm.subtitle_language;
630 if (!dm.territory.empty ()) {
631 d << "_" << dm.territory;
632 if (!dm.rating.empty ()) {
633 d << "-" << dm.rating;
637 switch (audio_channels ()) {
660 d << "_" << resolution_to_string (_resolution);
662 if (!dm.studio.empty ()) {
663 d << "_" << dm.studio;
666 if (if_created_now) {
667 d << "_" << boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
669 d << "_" << boost::gregorian::to_iso_string (_isdcf_date);
672 if (!dm.facility.empty ()) {
673 d << "_" << dm.facility;
686 if (!dm.package_type.empty ()) {
687 d << "_" << dm.package_type;
693 /** @return name to give the DCP */
695 Film::dcp_name (bool if_created_now) const
697 if (use_isdcf_name()) {
698 return isdcf_name (if_created_now);
705 Film::set_directory (boost::filesystem::path d)
712 Film::set_name (string n)
715 signal_changed (NAME);
719 Film::set_use_isdcf_name (bool u)
722 signal_changed (USE_ISDCF_NAME);
726 Film::set_dcp_content_type (DCPContentType const * t)
728 _dcp_content_type = t;
729 signal_changed (DCP_CONTENT_TYPE);
733 Film::set_container (Ratio const * c)
736 signal_changed (CONTAINER);
740 Film::set_resolution (Resolution r)
743 signal_changed (RESOLUTION);
747 Film::set_scaler (Scaler const * s)
750 signal_changed (SCALER);
754 Film::set_j2k_bandwidth (int b)
757 signal_changed (J2K_BANDWIDTH);
761 Film::set_isdcf_metadata (ISDCFMetadata m)
764 signal_changed (ISDCF_METADATA);
768 Film::set_video_frame_rate (int f)
770 _video_frame_rate = f;
771 signal_changed (VIDEO_FRAME_RATE);
775 Film::set_audio_channels (int c)
778 signal_changed (AUDIO_CHANNELS);
782 Film::set_three_d (bool t)
785 signal_changed (THREE_D);
789 Film::set_interop (bool i)
792 signal_changed (INTEROP);
796 Film::set_burn_subtitles (bool b)
799 signal_changed (BURN_SUBTITLES);
803 Film::signal_changed (Property p)
809 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
811 case Film::VIDEO_FRAME_RATE:
812 case Film::SEQUENCE_VIDEO:
813 _playlist->maybe_sequence_video ();
820 ui_signaller->emit (boost::bind (boost::ref (Changed), p));
825 Film::set_isdcf_date_today ()
827 _isdcf_date = boost::gregorian::day_clock::local_day ();
830 boost::filesystem::path
831 Film::info_path (int f, Eyes e) const
833 boost::filesystem::path p;
838 s << setfill('0') << f;
840 if (e == EYES_LEFT) {
842 } else if (e == EYES_RIGHT) {
850 /* info_dir() will already have added any initial bit of the path,
851 so don't call file() on this.
856 boost::filesystem::path
857 Film::j2c_path (int f, Eyes e, bool t) const
859 boost::filesystem::path p;
861 p /= video_identifier ();
865 s << setfill('0') << f;
867 if (e == EYES_LEFT) {
869 } else if (e == EYES_RIGHT) {
883 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
887 vector<CPLSummary> out;
889 boost::filesystem::path const dir = directory ();
890 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
892 boost::filesystem::is_directory (*i) &&
893 i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
901 i->path().leaf().string(),
902 dcp.cpls().front()->id(),
903 dcp.cpls().front()->annotation_text(),
904 dcp.cpls().front()->file()
917 Film::make_player () const
919 return shared_ptr<Player> (new Player (shared_from_this (), _playlist));
923 Film::set_signed (bool s)
926 signal_changed (SIGNED);
930 Film::set_encrypted (bool e)
933 signal_changed (ENCRYPTED);
937 Film::playlist () const
943 Film::content () const
945 return _playlist->content ();
949 Film::examine_content (shared_ptr<Content> c, bool calculate_digest)
951 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c, calculate_digest));
952 JobManager::instance()->add (j);
956 Film::examine_and_add_content (shared_ptr<Content> c, bool calculate_digest)
958 if (dynamic_pointer_cast<FFmpegContent> (c)) {
959 run_ffprobe (c->path(0), file ("ffprobe.log"), _log);
962 shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c, calculate_digest));
963 j->Finished.connect (bind (&Film::maybe_add_content, this, boost::weak_ptr<Job> (j), boost::weak_ptr<Content> (c)));
964 JobManager::instance()->add (j);
968 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c)
970 shared_ptr<Job> job = j.lock ();
971 if (!job || !job->finished_ok ()) {
975 shared_ptr<Content> content = c.lock ();
977 add_content (content);
982 Film::add_content (shared_ptr<Content> c)
984 /* Add video content after any existing content */
985 if (dynamic_pointer_cast<VideoContent> (c)) {
986 c->set_position (_playlist->video_end ());
993 Film::remove_content (shared_ptr<Content> c)
995 _playlist->remove (c);
999 Film::move_content_earlier (shared_ptr<Content> c)
1001 _playlist->move_earlier (c);
1005 Film::move_content_later (shared_ptr<Content> c)
1007 _playlist->move_later (c);
1011 Film::length () const
1013 return _playlist->length ();
1017 Film::best_video_frame_rate () const
1019 return _playlist->best_dcp_frame_rate ();
1023 Film::active_frame_rate_change (DCPTime t) const
1025 return _playlist->active_frame_rate_change (t, video_frame_rate ());
1029 Film::playlist_content_changed (boost::weak_ptr<Content> c, int p)
1031 if (p == VideoContentProperty::VIDEO_FRAME_RATE) {
1032 set_video_frame_rate (_playlist->best_dcp_frame_rate ());
1036 ui_signaller->emit (boost::bind (boost::ref (ContentChanged), c, p));
1041 Film::playlist_changed ()
1043 signal_changed (CONTENT);
1047 Film::audio_frame_rate () const
1054 Film::set_sequence_video (bool s)
1056 _sequence_video = s;
1057 _playlist->set_sequence_video (s);
1058 signal_changed (SEQUENCE_VIDEO);
1061 /** @return Size of the largest possible image in whatever resolution we are using */
1063 Film::full_frame () const
1065 switch (_resolution) {
1067 return dcp::Size (2048, 1080);
1069 return dcp::Size (4096, 2160);
1072 DCPOMATIC_ASSERT (false);
1073 return dcp::Size ();
1076 /** @return Size of the frame */
1078 Film::frame_size () const
1080 return fit_ratio_within (container()->ratio(), full_frame (), 1);
1085 dcp::Certificate target,
1086 boost::filesystem::path cpl_file,
1087 dcp::LocalTime from,
1088 dcp::LocalTime until,
1089 dcp::Formulation formulation
1092 shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1093 shared_ptr<const dcp::Signer> signer = Config::instance()->signer();
1094 if (!signer->valid ()) {
1095 throw InvalidSignerError ();
1098 return dcp::DecryptedKDM (
1099 cpl, key(), from, until, "DCP-o-matic", cpl->content_title_text(), dcp::LocalTime().as_string()
1100 ).encrypt (signer, target, formulation);
1103 list<dcp::EncryptedKDM>
1105 list<shared_ptr<Screen> > screens,
1106 boost::filesystem::path dcp,
1107 dcp::LocalTime from,
1108 dcp::LocalTime until,
1109 dcp::Formulation formulation
1112 list<dcp::EncryptedKDM> kdms;
1114 for (list<shared_ptr<Screen> >::iterator i = screens.begin(); i != screens.end(); ++i) {
1115 if ((*i)->certificate) {
1116 kdms.push_back (make_kdm ((*i)->certificate.get(), dcp, from, until, formulation));
1123 /** @return The approximate disk space required to encode a DCP of this film with the
1124 * current settings, in bytes.
1127 Film::required_disk_space () const
1129 return uint64_t (j2k_bandwidth() / 8) * length().seconds();
1132 /** This method checks the disk that the Film is on and tries to decide whether or not
1133 * there will be enough space to make a DCP for it. If so, true is returned; if not,
1134 * false is returned and required and availabe are filled in with the amount of disk space
1135 * required and available respectively (in Gb).
1137 * Note: the decision made by this method isn't, of course, 100% reliable.
1140 Film::should_be_enough_disk_space (double& required, double& available) const
1142 boost::filesystem::space_info s = boost::filesystem::space (internal_video_mxf_dir ());
1143 required = double (required_disk_space ()) / 1073741824.0f;
1144 available = double (s.available) / 1073741824.0f;
1145 return (available - required) > 1;
1149 Film::subtitle_language () const
1151 set<string> languages;
1153 ContentList cl = content ();
1154 BOOST_FOREACH (shared_ptr<Content>& c, cl) {
1155 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c);
1157 languages.insert (sc->subtitle_language ());
1162 BOOST_FOREACH (string s, languages) {
1163 if (!all.empty ()) {