Suggest that DCP rates <= 30 are used unless the user explictly goes higher (#1441).
[dcpomatic.git] / src / lib / film.cc
1 /*
2     Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
3
4     This file is part of DCP-o-matic.
5
6     DCP-o-matic is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation; either version 2 of the License, or
9     (at your option) any later version.
10
11     DCP-o-matic is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15
16     You should have received a copy of the GNU General Public License
17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
18
19 */
20
21 /** @file  src/film.cc
22  *  @brief A representation of some audio, video and subtitle content, and details of
23  *  how they should be presented in a DCP.
24  */
25
26 #include "film.h"
27 #include "job.h"
28 #include "util.h"
29 #include "job_manager.h"
30 #include "dcp_encoder.h"
31 #include "transcode_job.h"
32 #include "upload_job.h"
33 #include "null_log.h"
34 #include "file_log.h"
35 #include "dcpomatic_log.h"
36 #include "exceptions.h"
37 #include "examine_content_job.h"
38 #include "config.h"
39 #include "playlist.h"
40 #include "dcp_content_type.h"
41 #include "ratio.h"
42 #include "cross.h"
43 #include "environment_info.h"
44 #include "audio_processor.h"
45 #include "digester.h"
46 #include "compose.hpp"
47 #include "screen.h"
48 #include "audio_content.h"
49 #include "video_content.h"
50 #include "text_content.h"
51 #include "ffmpeg_content.h"
52 #include "dcp_content.h"
53 #include "screen_kdm.h"
54 #include "cinema.h"
55 #include "change_signaller.h"
56 #include "check_content_change_job.h"
57 #include <libcxml/cxml.h>
58 #include <dcp/cpl.h>
59 #include <dcp/certificate_chain.h>
60 #include <dcp/util.h>
61 #include <dcp/local_time.h>
62 #include <dcp/decrypted_kdm.h>
63 #include <dcp/raw_convert.h>
64 #include <dcp/reel_mxf.h>
65 #include <dcp/reel_asset.h>
66 #include <libxml++/libxml++.h>
67 #include <boost/filesystem.hpp>
68 #include <boost/algorithm/string.hpp>
69 #include <boost/foreach.hpp>
70 #include <boost/regex.hpp>
71 #include <unistd.h>
72 #include <stdexcept>
73 #include <iostream>
74 #include <algorithm>
75 #include <cstdlib>
76 #include <iomanip>
77 #include <set>
78
79 #include "i18n.h"
80
81 using std::string;
82 using std::pair;
83 using std::vector;
84 using std::setfill;
85 using std::min;
86 using std::max;
87 using std::make_pair;
88 using std::cout;
89 using std::list;
90 using std::set;
91 using std::runtime_error;
92 using std::copy;
93 using std::back_inserter;
94 using std::map;
95 using boost::shared_ptr;
96 using boost::weak_ptr;
97 using boost::dynamic_pointer_cast;
98 using boost::optional;
99 using boost::is_any_of;
100 using dcp::raw_convert;
101
102 string const Film::metadata_file = "metadata.xml";
103
104 /* 5 -> 6
105  * AudioMapping XML changed.
106  * 6 -> 7
107  * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
108  * 7 -> 8
109  * Use <Scale> tag in <VideoContent> rather than <Ratio>.
110  * 8 -> 9
111  * DCI -> ISDCF
112  * 9 -> 10
113  * Subtitle X and Y scale.
114  *
115  * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
116  * than frames now.
117  *
118  * 32 -> 33
119  * Changed <Period> to <Subtitle> in FFmpegSubtitleStream
120  * 33 -> 34
121  * Content only contains audio/subtitle-related tags if those things
122  * are present.
123  * 34 -> 35
124  * VideoFrameType in VideoContent is a string rather than an integer.
125  * 35 -> 36
126  * EffectColour rather than OutlineColour in Subtitle.
127  * 36 -> 37
128  * TextContent can be in a Caption tag, and some of the tag names
129  * have had Subtitle prefixes or suffixes removed.
130  */
131 int const Film::current_state_version = 37;
132
133 /** Construct a Film object in a given directory.
134  *
135  *  @param dir Film directory.
136  */
137
138 Film::Film (optional<boost::filesystem::path> dir)
139         : _playlist (new Playlist)
140         , _use_isdcf_name (true)
141         , _dcp_content_type (Config::instance()->default_dcp_content_type ())
142         , _container (Config::instance()->default_container ())
143         , _resolution (RESOLUTION_2K)
144         , _signed (true)
145         , _encrypted (false)
146         , _context_id (dcp::make_uuid ())
147         , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
148         , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
149         , _video_frame_rate (24)
150         , _audio_channels (Config::instance()->default_dcp_audio_channels ())
151         , _three_d (false)
152         , _sequence (true)
153         , _interop (Config::instance()->default_interop ())
154         , _audio_processor (0)
155         , _reel_type (REELTYPE_SINGLE)
156         , _reel_length (2000000000)
157         , _upload_after_make_dcp (Config::instance()->default_upload_after_make_dcp())
158         , _reencode_j2k (false)
159         , _user_explicit_video_frame_rate (false)
160         , _state_version (current_state_version)
161         , _dirty (false)
162 {
163         set_isdcf_date_today ();
164
165         _playlist_change_connection = _playlist->Change.connect (bind (&Film::playlist_change, this, _1));
166         _playlist_order_changed_connection = _playlist->OrderChanged.connect (bind (&Film::playlist_order_changed, this));
167         _playlist_content_change_connection = _playlist->ContentChange.connect (bind (&Film::playlist_content_change, this, _1, _2, _3, _4));
168
169         if (dir) {
170                 /* Make state.directory a complete path without ..s (where possible)
171                    (Code swiped from Adam Bowen on stackoverflow)
172                    XXX: couldn't/shouldn't this just be boost::filesystem::canonical?
173                 */
174
175                 boost::filesystem::path p (boost::filesystem::system_complete (dir.get()));
176                 boost::filesystem::path result;
177                 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
178                         if (*i == "..") {
179                                 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
180                                         result /= *i;
181                                 } else {
182                                         result = result.parent_path ();
183                                 }
184                         } else if (*i != ".") {
185                                 result /= *i;
186                         }
187                 }
188
189                 set_directory (result.make_preferred ());
190         }
191
192         if (_directory) {
193                 _log.reset (new FileLog (file ("log")));
194         } else {
195                 _log.reset (new NullLog);
196         }
197
198         _playlist->set_sequence (_sequence);
199 }
200
201 Film::~Film ()
202 {
203         BOOST_FOREACH (boost::signals2::connection& i, _job_connections) {
204                 i.disconnect ();
205         }
206
207         BOOST_FOREACH (boost::signals2::connection& i, _audio_analysis_connections) {
208                 i.disconnect ();
209         }
210 }
211
212 string
213 Film::video_identifier () const
214 {
215         DCPOMATIC_ASSERT (container ());
216
217         string s = container()->id()
218                 + "_" + resolution_to_string (_resolution)
219                 + "_" + _playlist->video_identifier()
220                 + "_" + raw_convert<string>(_video_frame_rate)
221                 + "_" + raw_convert<string>(j2k_bandwidth());
222
223         if (encrypted ()) {
224                 s += "_E";
225         } else {
226                 s += "_P";
227         }
228
229         if (_interop) {
230                 s += "_I";
231         } else {
232                 s += "_S";
233         }
234
235         if (_three_d) {
236                 s += "_3D";
237         }
238
239         return s;
240 }
241
242 /** @return The file to write video frame info to */
243 boost::filesystem::path
244 Film::info_file (DCPTimePeriod period) const
245 {
246         boost::filesystem::path p;
247         p /= "info";
248         p /= video_identifier () + "_" + raw_convert<string> (period.from.get()) + "_" + raw_convert<string> (period.to.get());
249         return file (p);
250 }
251
252 boost::filesystem::path
253 Film::internal_video_asset_dir () const
254 {
255         return dir ("video");
256 }
257
258 boost::filesystem::path
259 Film::internal_video_asset_filename (DCPTimePeriod p) const
260 {
261         return video_identifier() + "_" + raw_convert<string> (p.from.get()) + "_" + raw_convert<string> (p.to.get()) + ".mxf";
262 }
263
264 boost::filesystem::path
265 Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
266 {
267         boost::filesystem::path p = dir ("analysis");
268
269         Digester digester;
270         BOOST_FOREACH (shared_ptr<Content> i, playlist->content ()) {
271                 if (!i->audio) {
272                         continue;
273                 }
274
275                 digester.add (i->digest ());
276                 digester.add (i->audio->mapping().digest ());
277                 if (playlist->content().size() != 1) {
278                         /* Analyses should be considered equal regardless of gain
279                            if they were made from just one piece of content.  This
280                            is because we can fake any gain change in a single-content
281                            analysis at the plotting stage rather than having to
282                            recompute it.
283                         */
284                         digester.add (i->audio->gain ());
285                 }
286         }
287
288         if (audio_processor ()) {
289                 digester.add (audio_processor()->id ());
290         }
291
292         digester.add (audio_channels());
293
294         p /= digester.get ();
295         return p;
296 }
297
298 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
299 void
300 Film::make_dcp ()
301 {
302         if (dcp_name().find ("/") != string::npos) {
303                 throw BadSettingError (_("name"), _("Cannot contain slashes"));
304         }
305
306         if (container() == 0) {
307                 throw MissingSettingError (_("container"));
308         }
309
310         if (content().empty()) {
311                 throw runtime_error (_("You must add some content to the DCP before creating it"));
312         }
313
314         if (dcp_content_type() == 0) {
315                 throw MissingSettingError (_("content type"));
316         }
317
318         if (name().empty()) {
319                 set_name ("DCP");
320         }
321
322         BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
323                 if (!i->paths_valid()) {
324                         throw runtime_error (_("some of your content is missing"));
325                 }
326                 shared_ptr<const DCPContent> dcp = dynamic_pointer_cast<const DCPContent> (i);
327                 if (dcp && dcp->needs_kdm()) {
328                         throw runtime_error (_("Some of your content needs a KDM"));
329                 }
330                 if (dcp && dcp->needs_assets()) {
331                         throw runtime_error (_("Some of your content needs an OV"));
332                 }
333         }
334
335         set_isdcf_date_today ();
336
337         BOOST_FOREACH (string i, environment_info ()) {
338                 LOG_GENERAL_NC (i);
339         }
340
341         BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
342                 LOG_GENERAL ("Content: %1", i->technical_summary());
343         }
344         LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
345         if (Config::instance()->only_servers_encode ()) {
346                 LOG_GENERAL_NC ("0 threads: ONLY SERVERS SET TO ENCODE");
347         } else {
348                 LOG_GENERAL ("%1 threads", Config::instance()->master_encoding_threads());
349         }
350         LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
351
352         shared_ptr<TranscodeJob> tj (new TranscodeJob (shared_from_this()));
353         tj->set_encoder (shared_ptr<Encoder> (new DCPEncoder (shared_from_this(), tj)));
354         shared_ptr<CheckContentChangeJob> cc (new CheckContentChangeJob (shared_from_this(), tj));
355         JobManager::instance()->add (cc);
356 }
357
358 /** Start a job to send our DCP to the configured TMS */
359 void
360 Film::send_dcp_to_tms ()
361 {
362         shared_ptr<Job> j (new UploadJob (shared_from_this()));
363         JobManager::instance()->add (j);
364 }
365
366 shared_ptr<xmlpp::Document>
367 Film::metadata (bool with_content_paths) const
368 {
369         shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
370         xmlpp::Element* root = doc->create_root_node ("Metadata");
371
372         root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
373         root->add_child("Name")->add_child_text (_name);
374         root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
375
376         if (_dcp_content_type) {
377                 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
378         }
379
380         if (_container) {
381                 root->add_child("Container")->add_child_text (_container->id ());
382         }
383
384         root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
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("Sequence")->add_child_text (_sequence ? "1" : "0");
392         root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
393         root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
394         root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
395         root->add_child("Key")->add_child_text (_key.hex ());
396         root->add_child("ContextID")->add_child_text (_context_id);
397         if (_audio_processor) {
398                 root->add_child("AudioProcessor")->add_child_text (_audio_processor->id ());
399         }
400         root->add_child("ReelType")->add_child_text (raw_convert<string> (static_cast<int> (_reel_type)));
401         root->add_child("ReelLength")->add_child_text (raw_convert<string> (_reel_length));
402         root->add_child("UploadAfterMakeDCP")->add_child_text (_upload_after_make_dcp ? "1" : "0");
403         root->add_child("ReencodeJ2K")->add_child_text (_reencode_j2k ? "1" : "0");
404         root->add_child("UserExplicitVideoFrameRate")->add_child_text(_user_explicit_video_frame_rate ? "1" : "0");
405         _playlist->as_xml (root->add_child ("Playlist"), with_content_paths);
406
407         return doc;
408 }
409
410 void
411 Film::write_metadata (boost::filesystem::path path) const
412 {
413         shared_ptr<xmlpp::Document> doc = metadata ();
414         doc->write_to_file_formatted (path.string());
415 }
416
417 /** Write state to our `metadata' file */
418 void
419 Film::write_metadata () const
420 {
421         DCPOMATIC_ASSERT (directory());
422         boost::filesystem::create_directories (directory().get());
423         shared_ptr<xmlpp::Document> doc = metadata ();
424         doc->write_to_file_formatted (file(metadata_file).string ());
425         _dirty = false;
426 }
427
428 /** Write a template from this film */
429 void
430 Film::write_template (boost::filesystem::path path) const
431 {
432         boost::filesystem::create_directories (path.parent_path());
433         shared_ptr<xmlpp::Document> doc = metadata (false);
434         doc->write_to_file_formatted (path.string ());
435 }
436
437 /** Read state from our metadata file.
438  *  @return Notes about things that the user should know about, or empty.
439  */
440 list<string>
441 Film::read_metadata (optional<boost::filesystem::path> path)
442 {
443         if (!path) {
444                 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file (metadata_file))) {
445                         throw runtime_error (_("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!"));
446                 }
447
448                 path = file (metadata_file);
449         }
450
451         cxml::Document f ("Metadata");
452         f.read_file (path.get ());
453
454         _state_version = f.number_child<int> ("Version");
455         if (_state_version > current_state_version) {
456                 throw runtime_error (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version.  Sorry!"));
457         }
458
459         _name = f.string_child ("Name");
460         if (_state_version >= 9) {
461                 _use_isdcf_name = f.bool_child ("UseISDCFName");
462                 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
463                 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
464         } else {
465                 _use_isdcf_name = f.bool_child ("UseDCIName");
466                 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
467                 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
468         }
469
470         {
471                 optional<string> c = f.optional_string_child ("DCPContentType");
472                 if (c) {
473                         _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
474                 }
475         }
476
477         {
478                 optional<string> c = f.optional_string_child ("Container");
479                 if (c) {
480                         _container = Ratio::from_id (c.get ());
481                 }
482         }
483
484         _resolution = string_to_resolution (f.string_child ("Resolution"));
485         _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
486         _video_frame_rate = f.number_child<int> ("VideoFrameRate");
487         _signed = f.optional_bool_child("Signed").get_value_or (true);
488         _encrypted = f.bool_child ("Encrypted");
489         _audio_channels = f.number_child<int> ("AudioChannels");
490         /* We used to allow odd numbers (and zero) channels, but it's just not worth
491            the pain.
492         */
493         if (_audio_channels == 0) {
494                 _audio_channels = 2;
495         } else if ((_audio_channels % 2) == 1) {
496                 _audio_channels++;
497         }
498
499         if (f.optional_bool_child("SequenceVideo")) {
500                 _sequence = f.bool_child("SequenceVideo");
501         } else {
502                 _sequence = f.bool_child("Sequence");
503         }
504
505         _three_d = f.bool_child ("ThreeD");
506         _interop = f.bool_child ("Interop");
507         _key = dcp::Key (f.string_child ("Key"));
508         _context_id = f.optional_string_child("ContextID").get_value_or (dcp::make_uuid ());
509
510         if (f.optional_string_child ("AudioProcessor")) {
511                 _audio_processor = AudioProcessor::from_id (f.string_child ("AudioProcessor"));
512         } else {
513                 _audio_processor = 0;
514         }
515
516         _reel_type = static_cast<ReelType> (f.optional_number_child<int>("ReelType").get_value_or (static_cast<int>(REELTYPE_SINGLE)));
517         _reel_length = f.optional_number_child<int64_t>("ReelLength").get_value_or (2000000000);
518         _upload_after_make_dcp = f.optional_bool_child("UploadAfterMakeDCP").get_value_or (false);
519         _reencode_j2k = f.optional_bool_child("ReencodeJ2K").get_value_or(false);
520         _user_explicit_video_frame_rate = f.optional_bool_child("UserExplicitVideoFrameRate").get_value_or(false);
521
522         list<string> notes;
523         /* This method is the only one that can return notes (so far) */
524         _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
525
526         /* Write backtraces to this film's directory, until another film is loaded */
527         if (_directory) {
528                 set_backtrace_file (file ("backtrace.txt"));
529         }
530
531         _dirty = false;
532         return notes;
533 }
534
535 /** Given a directory name, return its full path within the Film's directory.
536  *  @param d directory name within the Film's directory.
537  *  @param create true to create the directory (and its parents) if they do not exist.
538  */
539 boost::filesystem::path
540 Film::dir (boost::filesystem::path d, bool create) const
541 {
542         DCPOMATIC_ASSERT (_directory);
543
544         boost::filesystem::path p;
545         p /= _directory.get();
546         p /= d;
547
548         if (create) {
549                 boost::filesystem::create_directories (p);
550         }
551
552         return p;
553 }
554
555 /** Given a file or directory name, return its full path within the Film's directory.
556  *  Any required parent directories will be created.
557  */
558 boost::filesystem::path
559 Film::file (boost::filesystem::path f) const
560 {
561         DCPOMATIC_ASSERT (_directory);
562
563         boost::filesystem::path p;
564         p /= _directory.get();
565         p /= f;
566
567         boost::filesystem::create_directories (p.parent_path ());
568
569         return p;
570 }
571
572 list<int>
573 Film::mapped_audio_channels () const
574 {
575         list<int> mapped;
576
577         if (audio_processor ()) {
578                 /* Processors are mapped 1:1 to DCP outputs so we can work out mappings from there */
579                 for (int i = 0; i < audio_processor()->out_channels(); ++i) {
580                         mapped.push_back (i);
581                 }
582         } else {
583                 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
584                         if (i->audio) {
585                                 list<int> c = i->audio->mapping().mapped_output_channels ();
586                                 copy (c.begin(), c.end(), back_inserter (mapped));
587                         }
588                 }
589
590                 mapped.sort ();
591                 mapped.unique ();
592         }
593
594         return mapped;
595 }
596
597 /** @return a ISDCF-compliant name for a DCP of this film */
598 string
599 Film::isdcf_name (bool if_created_now) const
600 {
601         string d;
602
603         string raw_name = name ();
604
605         /* Split the raw name up into words */
606         vector<string> words;
607         split (words, raw_name, is_any_of (" _-"));
608
609         string fixed_name;
610
611         /* Add each word to fixed_name */
612         for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
613                 string w = *i;
614
615                 /* First letter is always capitalised */
616                 w[0] = toupper (w[0]);
617
618                 /* Count caps in w */
619                 size_t caps = 0;
620                 for (size_t i = 0; i < w.size(); ++i) {
621                         if (isupper (w[i])) {
622                                 ++caps;
623                         }
624                 }
625
626                 /* If w is all caps make the rest of it lower case, otherwise
627                    leave it alone.
628                 */
629                 if (caps == w.size ()) {
630                         for (size_t i = 1; i < w.size(); ++i) {
631                                 w[i] = tolower (w[i]);
632                         }
633                 }
634
635                 for (size_t i = 0; i < w.size(); ++i) {
636                         fixed_name += w[i];
637                 }
638         }
639
640         if (fixed_name.length() > 14) {
641                 fixed_name = fixed_name.substr (0, 14);
642         }
643
644         d += fixed_name;
645
646         if (dcp_content_type()) {
647                 d += "_" + dcp_content_type()->isdcf_name();
648                 d += "-" + raw_convert<string>(isdcf_metadata().content_version);
649         }
650
651         ISDCFMetadata const dm = isdcf_metadata ();
652
653         if (dm.temp_version) {
654                 d += "-Temp";
655         }
656
657         if (dm.pre_release) {
658                 d += "-Pre";
659         }
660
661         if (dm.red_band) {
662                 d += "-RedBand";
663         }
664
665         if (!dm.chain.empty ()) {
666                 d += "-" + dm.chain;
667         }
668
669         if (three_d ()) {
670                 d += "-3D";
671         }
672
673         if (dm.two_d_version_of_three_d) {
674                 d += "-2D";
675         }
676
677         if (!dm.mastered_luminance.empty ()) {
678                 d += "-" + dm.mastered_luminance;
679         }
680
681         if (video_frame_rate() != 24) {
682                 d += "-" + raw_convert<string>(video_frame_rate());
683         }
684
685         if (container()) {
686                 d += "_" + container()->isdcf_name();
687         }
688
689         /* XXX: this uses the first bit of content only */
690
691         /* Interior aspect ratio.  The standard says we don't do this for trailers, for some strange reason */
692         if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
693                 Ratio const * content_ratio = 0;
694                 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
695                         if (i->video) {
696                                 /* Here's the first piece of video content */
697                                 if (i->video->scale().ratio ()) {
698                                         content_ratio = i->video->scale().ratio ();
699                                 } else {
700                                         content_ratio = Ratio::from_ratio (i->video->size().ratio ());
701                                 }
702                                 break;
703                         }
704                 }
705
706                 if (content_ratio && content_ratio != container()) {
707                         /* This needs to be the numeric version of the ratio, and ::id() is close enough */
708                         d += "-" + content_ratio->id();
709                 }
710         }
711
712         if (!dm.audio_language.empty ()) {
713                 d += "_" + dm.audio_language;
714                 if (!dm.subtitle_language.empty()) {
715
716                         /* I'm not clear on the precise details of the convention for CCAP labelling;
717                            for now I'm just appending -CCAP if we have any closed captions.
718                         */
719
720                         bool burnt_in = true;
721                         bool ccap = false;
722                         BOOST_FOREACH (shared_ptr<Content> i, content()) {
723                                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
724                                         if (j->type() == TEXT_OPEN_SUBTITLE && j->use() && !j->burn()) {
725                                                 burnt_in = false;
726                                         } else if (j->type() == TEXT_CLOSED_CAPTION) {
727                                                 ccap = true;
728                                         }
729                                 }
730                         }
731
732                         string language = dm.subtitle_language;
733                         if (burnt_in && language != "XX") {
734                                 transform (language.begin(), language.end(), language.begin(), ::tolower);
735                         } else {
736                                 transform (language.begin(), language.end(), language.begin(), ::toupper);
737                         }
738
739                         d += "-" + language;
740                         if (ccap) {
741                                 d += "-CCAP";
742                         }
743                 } else {
744                         d += "-XX";
745                 }
746         }
747
748         if (!dm.territory.empty ()) {
749                 d += "_" + dm.territory;
750                 if (dm.rating.empty ()) {
751                         d += "-NR";
752                 } else {
753                         d += "-" + dm.rating;
754                 }
755         }
756
757         /* Count mapped audio channels */
758
759         pair<int, int> ch = audio_channel_types (mapped_audio_channels(), audio_channels());
760         if (!ch.first && !ch.second) {
761                 d += "_MOS";
762         } else if (ch.first) {
763                 d += String::compose("_%1%2", ch.first, ch.second);
764         }
765
766         /* XXX: HI/VI */
767
768         d += "_" + resolution_to_string (_resolution);
769
770         if (!dm.studio.empty ()) {
771                 d += "_" + dm.studio;
772         }
773
774         if (if_created_now) {
775                 d += "_" + boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
776         } else {
777                 d += "_" + boost::gregorian::to_iso_string (_isdcf_date);
778         }
779
780         if (!dm.facility.empty ()) {
781                 d += "_" + dm.facility;
782         }
783
784         if (_interop) {
785                 d += "_IOP";
786         } else {
787                 d += "_SMPTE";
788         }
789
790         if (three_d ()) {
791                 d += "-3D";
792         }
793
794         bool vf = false;
795         BOOST_FOREACH (shared_ptr<Content> i, content ()) {
796                 shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (i);
797                 if (!dc) {
798                         continue;
799                 }
800
801                 bool any_text = false;
802                 for (int i = 0; i < TEXT_COUNT; ++i) {
803                         if (dc->reference_text(static_cast<TextType>(i))) {
804                                 any_text = true;
805                         }
806                 }
807                 if (dc->reference_video() || dc->reference_audio() || any_text) {
808                         vf = true;
809                 }
810         }
811
812         if (vf) {
813                 d += "_VF";
814         } else {
815                 d += "_OV";
816         }
817
818         return d;
819 }
820
821 /** @return name to give the DCP */
822 string
823 Film::dcp_name (bool if_created_now) const
824 {
825         string unfiltered;
826         if (use_isdcf_name()) {
827                 return careful_string_filter (isdcf_name (if_created_now));
828         }
829
830         return careful_string_filter (name ());
831 }
832
833 void
834 Film::set_directory (boost::filesystem::path d)
835 {
836         _directory = d;
837         _dirty = true;
838 }
839
840 void
841 Film::set_name (string n)
842 {
843         ChangeSignaller<Film> ch (this, NAME);
844         _name = n;
845 }
846
847 void
848 Film::set_use_isdcf_name (bool u)
849 {
850         ChangeSignaller<Film> ch (this, USE_ISDCF_NAME);
851         _use_isdcf_name = u;
852 }
853
854 void
855 Film::set_dcp_content_type (DCPContentType const * t)
856 {
857         ChangeSignaller<Film> ch (this, DCP_CONTENT_TYPE);
858         _dcp_content_type = t;
859 }
860
861 void
862 Film::set_container (Ratio const * c)
863 {
864         ChangeSignaller<Film> ch (this, CONTAINER);
865         _container = c;
866 }
867
868 void
869 Film::set_resolution (Resolution r)
870 {
871         ChangeSignaller<Film> ch (this, RESOLUTION);
872         _resolution = r;
873 }
874
875 void
876 Film::set_j2k_bandwidth (int b)
877 {
878         ChangeSignaller<Film> ch (this, J2K_BANDWIDTH);
879         _j2k_bandwidth = b;
880 }
881
882 void
883 Film::set_isdcf_metadata (ISDCFMetadata m)
884 {
885         ChangeSignaller<Film> ch (this, ISDCF_METADATA);
886         _isdcf_metadata = m;
887 }
888
889 /** @param f New frame rate.
890  *  @param user_explicit true if this comes from a direct user instruction, false if it is from
891  *  DCP-o-matic being helpful.
892  */
893 void
894 Film::set_video_frame_rate (int f, bool user_explicit)
895 {
896         ChangeSignaller<Film> ch (this, VIDEO_FRAME_RATE);
897         _video_frame_rate = f;
898         if (user_explicit) {
899                 _user_explicit_video_frame_rate = true;
900         }
901 }
902
903 void
904 Film::set_audio_channels (int c)
905 {
906         ChangeSignaller<Film> ch (this, AUDIO_CHANNELS);
907         _audio_channels = c;
908 }
909
910 void
911 Film::set_three_d (bool t)
912 {
913         ChangeSignaller<Film> ch (this, THREE_D);
914         _three_d = t;
915
916         if (_three_d && _isdcf_metadata.two_d_version_of_three_d) {
917                 ChangeSignaller<Film> ch (this, ISDCF_METADATA);
918                 _isdcf_metadata.two_d_version_of_three_d = false;
919         }
920 }
921
922 void
923 Film::set_interop (bool i)
924 {
925         ChangeSignaller<Film> ch (this, INTEROP);
926         _interop = i;
927 }
928
929 void
930 Film::set_audio_processor (AudioProcessor const * processor)
931 {
932         ChangeSignaller<Film> ch1 (this, AUDIO_PROCESSOR);
933         ChangeSignaller<Film> ch2 (this, AUDIO_CHANNELS);
934         _audio_processor = processor;
935 }
936
937 void
938 Film::set_reel_type (ReelType t)
939 {
940         ChangeSignaller<Film> ch (this, REEL_TYPE);
941         _reel_type = t;
942 }
943
944 /** @param r Desired reel length in bytes */
945 void
946 Film::set_reel_length (int64_t r)
947 {
948         ChangeSignaller<Film> ch (this, REEL_LENGTH);
949         _reel_length = r;
950 }
951
952 void
953 Film::set_upload_after_make_dcp (bool u)
954 {
955         ChangeSignaller<Film> ch (this, UPLOAD_AFTER_MAKE_DCP);
956         _upload_after_make_dcp = u;
957 }
958
959 void
960 Film::set_reencode_j2k (bool r)
961 {
962         ChangeSignaller<Film> ch (this, REENCODE_J2K);
963         _reencode_j2k = r;
964 }
965
966 void
967 Film::signal_change (ChangeType type, int p)
968 {
969         signal_change (type, static_cast<Property>(p));
970 }
971
972 void
973 Film::signal_change (ChangeType type, Property p)
974 {
975         if (type == CHANGE_TYPE_DONE) {
976                 _dirty = true;
977
978                 if (p == Film::CONTENT) {
979                         if (!_user_explicit_video_frame_rate) {
980                                 set_video_frame_rate (best_video_frame_rate());
981                         }
982                 }
983
984                 emit (boost::bind (boost::ref (Change), type, p));
985
986                 if (p == Film::VIDEO_FRAME_RATE || p == Film::SEQUENCE) {
987                         /* We want to call Playlist::maybe_sequence but this must happen after the
988                            main signal emission (since the butler will see that emission and un-suspend itself).
989                         */
990                         emit (boost::bind(&Playlist::maybe_sequence, _playlist.get(), shared_from_this()));
991                 }
992         } else {
993                 Change (type, p);
994         }
995 }
996
997 void
998 Film::set_isdcf_date_today ()
999 {
1000         _isdcf_date = boost::gregorian::day_clock::local_day ();
1001 }
1002
1003 boost::filesystem::path
1004 Film::j2c_path (int reel, Frame frame, Eyes eyes, bool tmp) const
1005 {
1006         boost::filesystem::path p;
1007         p /= "j2c";
1008         p /= video_identifier ();
1009
1010         char buffer[256];
1011         snprintf(buffer, sizeof(buffer), "%08d_%08" PRId64, reel, frame);
1012         string s (buffer);
1013
1014         if (eyes == EYES_LEFT) {
1015                 s += ".L";
1016         } else if (eyes == EYES_RIGHT) {
1017                 s += ".R";
1018         }
1019
1020         s += ".j2c";
1021
1022         if (tmp) {
1023                 s += ".tmp";
1024         }
1025
1026         p /= s;
1027         return file (p);
1028 }
1029
1030 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
1031 vector<CPLSummary>
1032 Film::cpls () const
1033 {
1034         if (!directory ()) {
1035                 return vector<CPLSummary> ();
1036         }
1037
1038         vector<CPLSummary> out;
1039
1040         boost::filesystem::path const dir = directory().get();
1041         for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
1042                 if (
1043                         boost::filesystem::is_directory (*i) &&
1044                         i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
1045                         ) {
1046
1047                         try {
1048                                 dcp::DCP dcp (*i);
1049                                 dcp.read ();
1050                                 DCPOMATIC_ASSERT (dcp.cpls().front()->file());
1051                                 out.push_back (
1052                                         CPLSummary (
1053                                                 i->path().leaf().string(),
1054                                                 dcp.cpls().front()->id(),
1055                                                 dcp.cpls().front()->annotation_text(),
1056                                                 dcp.cpls().front()->file().get()
1057                                                 )
1058                                         );
1059                         } catch (...) {
1060
1061                         }
1062                 }
1063         }
1064
1065         return out;
1066 }
1067
1068 void
1069 Film::set_signed (bool s)
1070 {
1071         ChangeSignaller<Film> ch (this, SIGNED);
1072         _signed = s;
1073 }
1074
1075 void
1076 Film::set_encrypted (bool e)
1077 {
1078         ChangeSignaller<Film> ch (this, ENCRYPTED);
1079         _encrypted = e;
1080 }
1081
1082 void
1083 Film::set_key (dcp::Key key)
1084 {
1085         ChangeSignaller<Film> ch (this, KEY);
1086         _key = key;
1087 }
1088
1089 ContentList
1090 Film::content () const
1091 {
1092         return _playlist->content ();
1093 }
1094
1095 /** @param content Content to add.
1096  *  @param disable_audio_analysis true to never do automatic audio analysis, even if it is enabled in configuration.
1097  */
1098 void
1099 Film::examine_and_add_content (shared_ptr<Content> content, bool disable_audio_analysis)
1100 {
1101         if (dynamic_pointer_cast<FFmpegContent> (content) && _directory) {
1102                 run_ffprobe (content->path(0), file("ffprobe.log"));
1103         }
1104
1105         shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), content));
1106
1107         _job_connections.push_back (
1108                 j->Finished.connect (bind (&Film::maybe_add_content, this, weak_ptr<Job>(j), weak_ptr<Content>(content), disable_audio_analysis))
1109                 );
1110
1111         JobManager::instance()->add (j);
1112 }
1113
1114 void
1115 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c, bool disable_audio_analysis)
1116 {
1117         shared_ptr<Job> job = j.lock ();
1118         if (!job || !job->finished_ok ()) {
1119                 return;
1120         }
1121
1122         shared_ptr<Content> content = c.lock ();
1123         if (!content) {
1124                 return;
1125         }
1126
1127         add_content (content);
1128
1129         if (Config::instance()->automatic_audio_analysis() && content->audio && !disable_audio_analysis) {
1130                 shared_ptr<Playlist> playlist (new Playlist);
1131                 playlist->add (shared_from_this(), content);
1132                 boost::signals2::connection c;
1133                 JobManager::instance()->analyse_audio (
1134                         shared_from_this(), playlist, false, c, bind (&Film::audio_analysis_finished, this)
1135                         );
1136                 _audio_analysis_connections.push_back (c);
1137         }
1138 }
1139
1140 void
1141 Film::add_content (shared_ptr<Content> c)
1142 {
1143         /* Add {video,subtitle} content after any existing {video,subtitle} content */
1144         if (c->video) {
1145                 c->set_position (shared_from_this(), _playlist->video_end(shared_from_this()));
1146         } else if (!c->text.empty()) {
1147                 c->set_position (shared_from_this(), _playlist->text_end(shared_from_this()));
1148         }
1149
1150         if (_template_film) {
1151                 /* Take settings from the first piece of content of c's type in _template */
1152                 BOOST_FOREACH (shared_ptr<Content> i, _template_film->content()) {
1153                         c->take_settings_from (i);
1154                 }
1155         }
1156
1157         _playlist->add (shared_from_this(), c);
1158 }
1159
1160 void
1161 Film::remove_content (shared_ptr<Content> c)
1162 {
1163         _playlist->remove (c);
1164 }
1165
1166 void
1167 Film::move_content_earlier (shared_ptr<Content> c)
1168 {
1169         _playlist->move_earlier (shared_from_this(), c);
1170 }
1171
1172 void
1173 Film::move_content_later (shared_ptr<Content> c)
1174 {
1175         _playlist->move_later (shared_from_this(), c);
1176 }
1177
1178 /** @return length of the film from time 0 to the last thing on the playlist */
1179 DCPTime
1180 Film::length () const
1181 {
1182         return _playlist->length(shared_from_this()).ceil(video_frame_rate());
1183 }
1184
1185 int
1186 Film::best_video_frame_rate () const
1187 {
1188         /* Don't default to anything above 30fps (make the user select that explicitly) */
1189         int best = _playlist->best_video_frame_rate ();
1190         if (best > 30) {
1191                 best /= 2;
1192         }
1193         return best;
1194 }
1195
1196 FrameRateChange
1197 Film::active_frame_rate_change (DCPTime t) const
1198 {
1199         return _playlist->active_frame_rate_change (t, video_frame_rate ());
1200 }
1201
1202 void
1203 Film::playlist_content_change (ChangeType type, weak_ptr<Content> c, int p, bool frequent)
1204 {
1205         if (p == ContentProperty::VIDEO_FRAME_RATE) {
1206                 signal_change (type, Film::CONTENT);
1207         } else if (p == AudioContentProperty::STREAMS) {
1208                 signal_change (type, Film::NAME);
1209         }
1210
1211         if (type == CHANGE_TYPE_DONE) {
1212                 emit (boost::bind (boost::ref (ContentChange), type, c, p, frequent));
1213         } else {
1214                 ContentChange (type, c, p, frequent);
1215         }
1216 }
1217
1218 void
1219 Film::playlist_change (ChangeType type)
1220 {
1221         signal_change (type, CONTENT);
1222         signal_change (type, NAME);
1223 }
1224
1225 void
1226 Film::playlist_order_changed ()
1227 {
1228         /* XXX: missing PENDING */
1229         signal_change (CHANGE_TYPE_DONE, CONTENT_ORDER);
1230 }
1231
1232 int
1233 Film::audio_frame_rate () const
1234 {
1235         /* It seems that nobody makes 96kHz DCPs at the moment, so let's avoid them.
1236            See #1436.
1237         */
1238         return 48000;
1239 }
1240
1241 void
1242 Film::set_sequence (bool s)
1243 {
1244         if (s == _sequence) {
1245                 return;
1246         }
1247
1248         ChangeSignaller<Film> cc (this, SEQUENCE);
1249         _sequence = s;
1250         _playlist->set_sequence (s);
1251 }
1252
1253 /** @return Size of the largest possible image in whatever resolution we are using */
1254 dcp::Size
1255 Film::full_frame () const
1256 {
1257         switch (_resolution) {
1258         case RESOLUTION_2K:
1259                 return dcp::Size (2048, 1080);
1260         case RESOLUTION_4K:
1261                 return dcp::Size (4096, 2160);
1262         }
1263
1264         DCPOMATIC_ASSERT (false);
1265         return dcp::Size ();
1266 }
1267
1268 /** @return Size of the frame */
1269 dcp::Size
1270 Film::frame_size () const
1271 {
1272         return fit_ratio_within (container()->ratio(), full_frame ());
1273 }
1274
1275 /** @param recipient KDM recipient certificate.
1276  *  @param trusted_devices Certificate thumbprints of other trusted devices (can be empty).
1277  *  @param cpl_file CPL filename.
1278  *  @param from KDM from time expressed as a local time with an offset from UTC.
1279  *  @param until KDM to time expressed as a local time with an offset from UTC.
1280  *  @param formulation KDM formulation to use.
1281  *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
1282  *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
1283  *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
1284  */
1285 dcp::EncryptedKDM
1286 Film::make_kdm (
1287         dcp::Certificate recipient,
1288         vector<string> trusted_devices,
1289         boost::filesystem::path cpl_file,
1290         dcp::LocalTime from,
1291         dcp::LocalTime until,
1292         dcp::Formulation formulation,
1293         bool disable_forensic_marking_picture,
1294         optional<int> disable_forensic_marking_audio
1295         ) const
1296 {
1297         if (!_encrypted) {
1298                 throw runtime_error (_("Cannot make a KDM as this project is not encrypted."));
1299         }
1300
1301         shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1302         shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
1303         if (!signer->valid ()) {
1304                 throw InvalidSignerError ();
1305         }
1306
1307         /* Find keys that have been added to imported, encrypted DCP content */
1308         list<dcp::DecryptedKDMKey> imported_keys;
1309         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1310                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent> (i);
1311                 if (d && d->kdm()) {
1312                         dcp::DecryptedKDM kdm (d->kdm().get(), Config::instance()->decryption_chain()->key().get());
1313                         list<dcp::DecryptedKDMKey> keys = kdm.keys ();
1314                         copy (keys.begin(), keys.end(), back_inserter (imported_keys));
1315                 }
1316         }
1317
1318         map<shared_ptr<const dcp::ReelMXF>, dcp::Key> keys;
1319
1320         BOOST_FOREACH(shared_ptr<const dcp::ReelAsset> i, cpl->reel_assets ()) {
1321                 shared_ptr<const dcp::ReelMXF> mxf = boost::dynamic_pointer_cast<const dcp::ReelMXF> (i);
1322                 if (!mxf || !mxf->key_id()) {
1323                         continue;
1324                 }
1325
1326                 /* Get any imported key for this ID */
1327                 bool done = false;
1328                 BOOST_FOREACH (dcp::DecryptedKDMKey j, imported_keys) {
1329                         if (j.id() == mxf->key_id().get()) {
1330                                 LOG_GENERAL ("Using imported key for %1", mxf->key_id().get());
1331                                 keys[mxf] = j.key();
1332                                 done = true;
1333                         }
1334                 }
1335
1336                 if (!done) {
1337                         /* No imported key; it must be an asset that we encrypted */
1338                         LOG_GENERAL ("Using our own key for %1", mxf->key_id().get());
1339                         keys[mxf] = key();
1340                 }
1341         }
1342
1343         return dcp::DecryptedKDM (
1344                 cpl->id(), keys, from, until, cpl->content_title_text(), cpl->content_title_text(), dcp::LocalTime().as_string()
1345                 ).encrypt (signer, recipient, trusted_devices, formulation, disable_forensic_marking_picture, disable_forensic_marking_audio);
1346 }
1347
1348 /** @param screens Screens to make KDMs for.
1349  *  @param cpl_file Path to CPL to make KDMs for.
1350  *  @param from KDM from time expressed as a local time in the time zone of the Screen's Cinema.
1351  *  @param until KDM to time expressed as a local time in the time zone of the Screen's Cinema.
1352  *  @param formulation KDM formulation to use.
1353  *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
1354  *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
1355  *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
1356  */
1357 list<ScreenKDM>
1358 Film::make_kdms (
1359         list<shared_ptr<Screen> > screens,
1360         boost::filesystem::path cpl_file,
1361         boost::posix_time::ptime from,
1362         boost::posix_time::ptime until,
1363         dcp::Formulation formulation,
1364         bool disable_forensic_marking_picture,
1365         optional<int> disable_forensic_marking_audio
1366         ) const
1367 {
1368         list<ScreenKDM> kdms;
1369
1370         BOOST_FOREACH (shared_ptr<Screen> i, screens) {
1371                 if (i->recipient) {
1372                         dcp::EncryptedKDM const kdm = make_kdm (
1373                                 i->recipient.get(),
1374                                 i->trusted_device_thumbprints(),
1375                                 cpl_file,
1376                                 dcp::LocalTime (from,  i->cinema ? i->cinema->utc_offset_hour() : 0, i->cinema ? i->cinema->utc_offset_minute() : 0),
1377                                 dcp::LocalTime (until, i->cinema ? i->cinema->utc_offset_hour() : 0, i->cinema ? i->cinema->utc_offset_minute() : 0),
1378                                 formulation,
1379                                 disable_forensic_marking_picture,
1380                                 disable_forensic_marking_audio
1381                                 );
1382
1383                         kdms.push_back (ScreenKDM (i, kdm));
1384                 }
1385         }
1386
1387         return kdms;
1388 }
1389
1390 /** @return The approximate disk space required to encode a DCP of this film with the
1391  *  current settings, in bytes.
1392  */
1393 uint64_t
1394 Film::required_disk_space () const
1395 {
1396         return _playlist->required_disk_space (shared_from_this(), j2k_bandwidth(), audio_channels(), audio_frame_rate());
1397 }
1398
1399 /** This method checks the disk that the Film is on and tries to decide whether or not
1400  *  there will be enough space to make a DCP for it.  If so, true is returned; if not,
1401  *  false is returned and required and available are filled in with the amount of disk space
1402  *  required and available respectively (in GB).
1403  *
1404  *  Note: the decision made by this method isn't, of course, 100% reliable.
1405  */
1406 bool
1407 Film::should_be_enough_disk_space (double& required, double& available, bool& can_hard_link) const
1408 {
1409         /* Create a test file and see if we can hard-link it */
1410         boost::filesystem::path test = internal_video_asset_dir() / "test";
1411         boost::filesystem::path test2 = internal_video_asset_dir() / "test2";
1412         can_hard_link = true;
1413         FILE* f = fopen_boost (test, "w");
1414         if (f) {
1415                 fclose (f);
1416                 boost::system::error_code ec;
1417                 boost::filesystem::create_hard_link (test, test2, ec);
1418                 if (ec) {
1419                         can_hard_link = false;
1420                 }
1421                 boost::filesystem::remove (test);
1422                 boost::filesystem::remove (test2);
1423         }
1424
1425         boost::filesystem::space_info s = boost::filesystem::space (internal_video_asset_dir ());
1426         required = double (required_disk_space ()) / 1073741824.0f;
1427         if (!can_hard_link) {
1428                 required *= 2;
1429         }
1430         available = double (s.available) / 1073741824.0f;
1431         return (available - required) > 1;
1432 }
1433
1434 string
1435 Film::subtitle_language () const
1436 {
1437         set<string> languages;
1438
1439         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1440                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
1441                         languages.insert (j->language ());
1442                 }
1443         }
1444
1445         string all;
1446         BOOST_FOREACH (string s, languages) {
1447                 if (!all.empty ()) {
1448                         all += "/" + s;
1449                 } else {
1450                         all += s;
1451                 }
1452         }
1453
1454         return all;
1455 }
1456
1457 /** @return The names of the channels that audio contents' outputs are passed into;
1458  *  this is either the DCP or a AudioProcessor.
1459  */
1460 vector<string>
1461 Film::audio_output_names () const
1462 {
1463         if (audio_processor ()) {
1464                 return audio_processor()->input_names ();
1465         }
1466
1467         DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
1468
1469         vector<string> n;
1470
1471         for (int i = 0; i < audio_channels(); ++i) {
1472                 n.push_back (short_audio_channel_name (i));
1473         }
1474
1475         return n;
1476 }
1477
1478 void
1479 Film::repeat_content (ContentList c, int n)
1480 {
1481         _playlist->repeat (shared_from_this(), c, n);
1482 }
1483
1484 void
1485 Film::remove_content (ContentList c)
1486 {
1487         _playlist->remove (c);
1488 }
1489
1490 void
1491 Film::audio_analysis_finished ()
1492 {
1493         /* XXX */
1494 }
1495
1496 list<DCPTimePeriod>
1497 Film::reels () const
1498 {
1499         list<DCPTimePeriod> p;
1500         DCPTime const len = length();
1501
1502         switch (reel_type ()) {
1503         case REELTYPE_SINGLE:
1504                 p.push_back (DCPTimePeriod (DCPTime (), len));
1505                 break;
1506         case REELTYPE_BY_VIDEO_CONTENT:
1507         {
1508                 optional<DCPTime> last_split;
1509                 shared_ptr<Content> last_video;
1510                 BOOST_FOREACH (shared_ptr<Content> c, content ()) {
1511                         if (c->video) {
1512                                 BOOST_FOREACH (DCPTime t, c->reel_split_points(shared_from_this())) {
1513                                         if (last_split) {
1514                                                 p.push_back (DCPTimePeriod (last_split.get(), t));
1515                                         }
1516                                         last_split = t;
1517                                 }
1518                                 last_video = c;
1519                         }
1520                 }
1521
1522                 DCPTime video_end = last_video ? last_video->end(shared_from_this()) : DCPTime(0);
1523                 if (last_split) {
1524                         /* Definitely go from the last split to the end of the video content */
1525                         p.push_back (DCPTimePeriod (last_split.get(), video_end));
1526                 }
1527
1528                 if (video_end < len) {
1529                         /* And maybe go after that as well if there is any non-video hanging over the end */
1530                         p.push_back (DCPTimePeriod (video_end, len));
1531                 }
1532                 break;
1533         }
1534         case REELTYPE_BY_LENGTH:
1535         {
1536                 DCPTime current;
1537                 /* Integer-divide reel length by the size of one frame to give the number of frames per reel */
1538                 Frame const reel_in_frames = _reel_length / ((j2k_bandwidth() / video_frame_rate()) / 8);
1539                 while (current < len) {
1540                         DCPTime end = min (len, current + DCPTime::from_frames (reel_in_frames, video_frame_rate ()));
1541                         p.push_back (DCPTimePeriod (current, end));
1542                         current = end;
1543                 }
1544                 break;
1545         }
1546         }
1547
1548         return p;
1549 }
1550
1551 /** @param period A period within the DCP
1552  *  @return Name of the content which most contributes to the given period.
1553  */
1554 string
1555 Film::content_summary (DCPTimePeriod period) const
1556 {
1557         return _playlist->content_summary (shared_from_this(), period);
1558 }
1559
1560 void
1561 Film::use_template (string name)
1562 {
1563         _template_film.reset (new Film (optional<boost::filesystem::path>()));
1564         _template_film->read_metadata (Config::instance()->template_path (name));
1565         _use_isdcf_name = _template_film->_use_isdcf_name;
1566         _dcp_content_type = _template_film->_dcp_content_type;
1567         _container = _template_film->_container;
1568         _resolution = _template_film->_resolution;
1569         _j2k_bandwidth = _template_film->_j2k_bandwidth;
1570         _video_frame_rate = _template_film->_video_frame_rate;
1571         _signed = _template_film->_signed;
1572         _encrypted = _template_film->_encrypted;
1573         _audio_channels = _template_film->_audio_channels;
1574         _sequence = _template_film->_sequence;
1575         _three_d = _template_film->_three_d;
1576         _interop = _template_film->_interop;
1577         _audio_processor = _template_film->_audio_processor;
1578         _reel_type = _template_film->_reel_type;
1579         _reel_length = _template_film->_reel_length;
1580         _upload_after_make_dcp = _template_film->_upload_after_make_dcp;
1581         _isdcf_metadata = _template_film->_isdcf_metadata;
1582 }
1583
1584 pair<double, double>
1585 Film::speed_up_range (int dcp_frame_rate) const
1586 {
1587         return _playlist->speed_up_range (dcp_frame_rate);
1588 }
1589
1590 void
1591 Film::copy_from (shared_ptr<const Film> film)
1592 {
1593         read_metadata (film->file (metadata_file));
1594 }
1595
1596 bool
1597 Film::references_dcp_video () const
1598 {
1599         BOOST_FOREACH (shared_ptr<Content> i, _playlist->content()) {
1600                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
1601                 if (d && d->reference_video()) {
1602                         return true;
1603                 }
1604         }
1605
1606         return false;
1607 }
1608
1609 bool
1610 Film::references_dcp_audio () const
1611 {
1612         BOOST_FOREACH (shared_ptr<Content> i, _playlist->content()) {
1613                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
1614                 if (d && d->reference_audio()) {
1615                         return true;
1616                 }
1617         }
1618
1619         return false;
1620 }
1621
1622 list<DCPTextTrack>
1623 Film::closed_caption_tracks () const
1624 {
1625         list<DCPTextTrack> tt;
1626         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1627                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
1628                         /* XXX: Empty DCPTextTrack ends up being a magic value here */
1629                         DCPTextTrack dtt = j->dcp_track().get_value_or(DCPTextTrack());
1630                         if (j->type() == TEXT_CLOSED_CAPTION && find(tt.begin(), tt.end(), dtt) == tt.end()) {
1631                                 tt.push_back (dtt);
1632                         }
1633                 }
1634         }
1635
1636         return tt;
1637 }