Allow specification of trusted devices by thumbprint rather than
[dcpomatic.git] / src / lib / film.cc
1 /*
2     Copyright (C) 2012-2018 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 "exceptions.h"
36 #include "examine_content_job.h"
37 #include "config.h"
38 #include "playlist.h"
39 #include "dcp_content_type.h"
40 #include "ratio.h"
41 #include "cross.h"
42 #include "environment_info.h"
43 #include "audio_processor.h"
44 #include "digester.h"
45 #include "compose.hpp"
46 #include "screen.h"
47 #include "audio_content.h"
48 #include "video_content.h"
49 #include "text_content.h"
50 #include "ffmpeg_content.h"
51 #include "dcp_content.h"
52 #include "screen_kdm.h"
53 #include "cinema.h"
54 #include "change_signaller.h"
55 #include "check_content_change_job.h"
56 #include <libcxml/cxml.h>
57 #include <dcp/cpl.h>
58 #include <dcp/certificate_chain.h>
59 #include <dcp/util.h>
60 #include <dcp/local_time.h>
61 #include <dcp/decrypted_kdm.h>
62 #include <dcp/raw_convert.h>
63 #include <dcp/reel_mxf.h>
64 #include <dcp/reel_asset.h>
65 #include <libxml++/libxml++.h>
66 #include <boost/filesystem.hpp>
67 #include <boost/algorithm/string.hpp>
68 #include <boost/foreach.hpp>
69 #include <boost/regex.hpp>
70 #include <unistd.h>
71 #include <stdexcept>
72 #include <iostream>
73 #include <algorithm>
74 #include <cstdlib>
75 #include <iomanip>
76 #include <set>
77
78 #include "i18n.h"
79
80 using std::string;
81 using std::pair;
82 using std::vector;
83 using std::setfill;
84 using std::min;
85 using std::max;
86 using std::make_pair;
87 using std::cout;
88 using std::list;
89 using std::set;
90 using std::runtime_error;
91 using std::copy;
92 using std::back_inserter;
93 using std::map;
94 using boost::shared_ptr;
95 using boost::weak_ptr;
96 using boost::dynamic_pointer_cast;
97 using boost::optional;
98 using boost::is_any_of;
99 using dcp::raw_convert;
100
101 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
102 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, LogEntry::TYPE_GENERAL);
103
104 string const Film::metadata_file = "metadata.xml";
105
106 /* 5 -> 6
107  * AudioMapping XML changed.
108  * 6 -> 7
109  * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
110  * 7 -> 8
111  * Use <Scale> tag in <VideoContent> rather than <Ratio>.
112  * 8 -> 9
113  * DCI -> ISDCF
114  * 9 -> 10
115  * Subtitle X and Y scale.
116  *
117  * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
118  * than frames now.
119  *
120  * 32 -> 33
121  * Changed <Period> to <Subtitle> in FFmpegSubtitleStream
122  * 33 -> 34
123  * Content only contains audio/subtitle-related tags if those things
124  * are present.
125  * 34 -> 35
126  * VideoFrameType in VideoContent is a string rather than an integer.
127  * 35 -> 36
128  * EffectColour rather than OutlineColour in Subtitle.
129  * 36 -> 37
130  * TextContent can be in a Caption tag, and some of the tag names
131  * have had Subtitle prefixes or suffixes removed.
132  */
133 int const Film::current_state_version = 37;
134
135 /** Construct a Film object in a given directory.
136  *
137  *  @param dir Film directory.
138  */
139
140 Film::Film (optional<boost::filesystem::path> dir)
141         : _playlist (new Playlist)
142         , _use_isdcf_name (true)
143         , _dcp_content_type (Config::instance()->default_dcp_content_type ())
144         , _container (Config::instance()->default_container ())
145         , _resolution (RESOLUTION_2K)
146         , _signed (true)
147         , _encrypted (false)
148         , _context_id (dcp::make_uuid ())
149         , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
150         , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
151         , _video_frame_rate (24)
152         , _audio_channels (Config::instance()->default_dcp_audio_channels ())
153         , _three_d (false)
154         , _sequence (true)
155         , _interop (Config::instance()->default_interop ())
156         , _audio_processor (0)
157         , _reel_type (REELTYPE_SINGLE)
158         , _reel_length (2000000000)
159         , _upload_after_make_dcp (Config::instance()->default_upload_after_make_dcp())
160         , _reencode_j2k (false)
161         , _state_version (current_state_version)
162         , _dirty (false)
163 {
164         set_isdcf_date_today ();
165
166         _playlist_change_connection = _playlist->Change.connect (bind (&Film::playlist_change, this, _1));
167         _playlist_order_changed_connection = _playlist->OrderChanged.connect (bind (&Film::playlist_order_changed, this));
168         _playlist_content_change_connection = _playlist->ContentChange.connect (bind (&Film::playlist_content_change, this, _1, _2, _3, _4));
169
170         if (dir) {
171                 /* Make state.directory a complete path without ..s (where possible)
172                    (Code swiped from Adam Bowen on stackoverflow)
173                    XXX: couldn't/shouldn't this just be boost::filesystem::canonical?
174                 */
175
176                 boost::filesystem::path p (boost::filesystem::system_complete (dir.get()));
177                 boost::filesystem::path result;
178                 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
179                         if (*i == "..") {
180                                 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
181                                         result /= *i;
182                                 } else {
183                                         result = result.parent_path ();
184                                 }
185                         } else if (*i != ".") {
186                                 result /= *i;
187                         }
188                 }
189
190                 set_directory (result.make_preferred ());
191         }
192
193         if (_directory) {
194                 _log.reset (new FileLog (file ("log")));
195         } else {
196                 _log.reset (new NullLog);
197         }
198
199         _playlist->set_sequence (_sequence);
200 }
201
202 Film::~Film ()
203 {
204         BOOST_FOREACH (boost::signals2::connection& i, _job_connections) {
205                 i.disconnect ();
206         }
207
208         BOOST_FOREACH (boost::signals2::connection& i, _audio_analysis_connections) {
209                 i.disconnect ();
210         }
211 }
212
213 string
214 Film::video_identifier () const
215 {
216         DCPOMATIC_ASSERT (container ());
217
218         string s = container()->id()
219                 + "_" + resolution_to_string (_resolution)
220                 + "_" + _playlist->video_identifier()
221                 + "_" + raw_convert<string>(_video_frame_rate)
222                 + "_" + raw_convert<string>(j2k_bandwidth());
223
224         if (encrypted ()) {
225                 s += "_E";
226         } else {
227                 s += "_P";
228         }
229
230         if (_interop) {
231                 s += "_I";
232         } else {
233                 s += "_S";
234         }
235
236         if (_three_d) {
237                 s += "_3D";
238         }
239
240         return s;
241 }
242
243 /** @return The file to write video frame info to */
244 boost::filesystem::path
245 Film::info_file (DCPTimePeriod period) const
246 {
247         boost::filesystem::path p;
248         p /= "info";
249         p /= video_identifier () + "_" + raw_convert<string> (period.from.get()) + "_" + raw_convert<string> (period.to.get());
250         return file (p);
251 }
252
253 boost::filesystem::path
254 Film::internal_video_asset_dir () const
255 {
256         return dir ("video");
257 }
258
259 boost::filesystem::path
260 Film::internal_video_asset_filename (DCPTimePeriod p) const
261 {
262         return video_identifier() + "_" + raw_convert<string> (p.from.get()) + "_" + raw_convert<string> (p.to.get()) + ".mxf";
263 }
264
265 boost::filesystem::path
266 Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
267 {
268         boost::filesystem::path p = dir ("analysis");
269
270         Digester digester;
271         BOOST_FOREACH (shared_ptr<Content> i, playlist->content ()) {
272                 if (!i->audio) {
273                         continue;
274                 }
275
276                 digester.add (i->digest ());
277                 digester.add (i->audio->mapping().digest ());
278                 if (playlist->content().size() != 1) {
279                         /* Analyses should be considered equal regardless of gain
280                            if they were made from just one piece of content.  This
281                            is because we can fake any gain change in a single-content
282                            analysis at the plotting stage rather than having to
283                            recompute it.
284                         */
285                         digester.add (i->audio->gain ());
286                 }
287         }
288
289         if (audio_processor ()) {
290                 digester.add (audio_processor()->id ());
291         }
292
293         p /= digester.get ();
294         return p;
295 }
296
297 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
298 void
299 Film::make_dcp ()
300 {
301         if (dcp_name().find ("/") != string::npos) {
302                 throw BadSettingError (_("name"), _("Cannot contain slashes"));
303         }
304
305         if (container() == 0) {
306                 throw MissingSettingError (_("container"));
307         }
308
309         if (content().empty()) {
310                 throw runtime_error (_("You must add some content to the DCP before creating it"));
311         }
312
313         if (dcp_content_type() == 0) {
314                 throw MissingSettingError (_("content type"));
315         }
316
317         if (name().empty()) {
318                 set_name ("DCP");
319         }
320
321         BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
322                 if (!i->paths_valid()) {
323                         throw runtime_error (_("some of your content is missing"));
324                 }
325                 shared_ptr<const DCPContent> dcp = dynamic_pointer_cast<const DCPContent> (i);
326                 if (dcp && dcp->needs_kdm()) {
327                         throw runtime_error (_("Some of your content needs a KDM"));
328                 }
329                 if (dcp && dcp->needs_assets()) {
330                         throw runtime_error (_("Some of your content needs an OV"));
331                 }
332         }
333
334         set_isdcf_date_today ();
335
336         BOOST_FOREACH (string i, environment_info ()) {
337                 LOG_GENERAL_NC (i);
338         }
339
340         BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
341                 LOG_GENERAL ("Content: %1", i->technical_summary());
342         }
343         LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
344         if (Config::instance()->only_servers_encode ()) {
345                 LOG_GENERAL_NC ("0 threads: ONLY SERVERS SET TO ENCODE");
346         } else {
347                 LOG_GENERAL ("%1 threads", Config::instance()->master_encoding_threads());
348         }
349         LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
350
351         shared_ptr<TranscodeJob> tj (new TranscodeJob (shared_from_this()));
352         tj->set_encoder (shared_ptr<Encoder> (new DCPEncoder (shared_from_this(), tj)));
353         shared_ptr<CheckContentChangeJob> cc (new CheckContentChangeJob (shared_from_this(), tj));
354         JobManager::instance()->add (cc);
355 }
356
357 /** Start a job to send our DCP to the configured TMS */
358 void
359 Film::send_dcp_to_tms ()
360 {
361         shared_ptr<Job> j (new UploadJob (shared_from_this()));
362         JobManager::instance()->add (j);
363 }
364
365 shared_ptr<xmlpp::Document>
366 Film::metadata (bool with_content_paths) const
367 {
368         shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
369         xmlpp::Element* root = doc->create_root_node ("Metadata");
370
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");
374
375         if (_dcp_content_type) {
376                 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
377         }
378
379         if (_container) {
380                 root->add_child("Container")->add_child_text (_container->id ());
381         }
382
383         root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
384         root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
385         _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
386         root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
387         root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
388         root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
389         root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
390         root->add_child("Sequence")->add_child_text (_sequence ? "1" : "0");
391         root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
392         root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
393         root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
394         root->add_child("Key")->add_child_text (_key.hex ());
395         root->add_child("ContextID")->add_child_text (_context_id);
396         if (_audio_processor) {
397                 root->add_child("AudioProcessor")->add_child_text (_audio_processor->id ());
398         }
399         root->add_child("ReelType")->add_child_text (raw_convert<string> (static_cast<int> (_reel_type)));
400         root->add_child("ReelLength")->add_child_text (raw_convert<string> (_reel_length));
401         root->add_child("UploadAfterMakeDCP")->add_child_text (_upload_after_make_dcp ? "1" : "0");
402         root->add_child("ReencodeJ2K")->add_child_text (_reencode_j2k ? "1" : "0");
403         _playlist->as_xml (root->add_child ("Playlist"), with_content_paths);
404
405         return doc;
406 }
407
408 void
409 Film::write_metadata (boost::filesystem::path path) const
410 {
411         shared_ptr<xmlpp::Document> doc = metadata ();
412         doc->write_to_file_formatted (path.string());
413 }
414
415 /** Write state to our `metadata' file */
416 void
417 Film::write_metadata () const
418 {
419         DCPOMATIC_ASSERT (directory());
420         boost::filesystem::create_directories (directory().get());
421         shared_ptr<xmlpp::Document> doc = metadata ();
422         doc->write_to_file_formatted (file(metadata_file).string ());
423         _dirty = false;
424 }
425
426 /** Write a template from this film */
427 void
428 Film::write_template (boost::filesystem::path path) const
429 {
430         boost::filesystem::create_directories (path.parent_path());
431         shared_ptr<xmlpp::Document> doc = metadata (false);
432         doc->write_to_file_formatted (path.string ());
433 }
434
435 /** Read state from our metadata file.
436  *  @return Notes about things that the user should know about, or empty.
437  */
438 list<string>
439 Film::read_metadata (optional<boost::filesystem::path> path)
440 {
441         if (!path) {
442                 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file (metadata_file))) {
443                         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!"));
444                 }
445
446                 path = file (metadata_file);
447         }
448
449         cxml::Document f ("Metadata");
450         f.read_file (path.get ());
451
452         _state_version = f.number_child<int> ("Version");
453         if (_state_version > current_state_version) {
454                 throw runtime_error (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version.  Sorry!"));
455         }
456
457         _name = f.string_child ("Name");
458         if (_state_version >= 9) {
459                 _use_isdcf_name = f.bool_child ("UseISDCFName");
460                 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
461                 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
462         } else {
463                 _use_isdcf_name = f.bool_child ("UseDCIName");
464                 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
465                 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
466         }
467
468         {
469                 optional<string> c = f.optional_string_child ("DCPContentType");
470                 if (c) {
471                         _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
472                 }
473         }
474
475         {
476                 optional<string> c = f.optional_string_child ("Container");
477                 if (c) {
478                         _container = Ratio::from_id (c.get ());
479                 }
480         }
481
482         _resolution = string_to_resolution (f.string_child ("Resolution"));
483         _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
484         _video_frame_rate = f.number_child<int> ("VideoFrameRate");
485         _signed = f.optional_bool_child("Signed").get_value_or (true);
486         _encrypted = f.bool_child ("Encrypted");
487         _audio_channels = f.number_child<int> ("AudioChannels");
488         /* We used to allow odd numbers (and zero) channels, but it's just not worth
489            the pain.
490         */
491         if (_audio_channels == 0) {
492                 _audio_channels = 2;
493         } else if ((_audio_channels % 2) == 1) {
494                 _audio_channels++;
495         }
496
497         if (f.optional_bool_child("SequenceVideo")) {
498                 _sequence = f.bool_child("SequenceVideo");
499         } else {
500                 _sequence = f.bool_child("Sequence");
501         }
502
503         _three_d = f.bool_child ("ThreeD");
504         _interop = f.bool_child ("Interop");
505         _key = dcp::Key (f.string_child ("Key"));
506         _context_id = f.optional_string_child("ContextID").get_value_or (dcp::make_uuid ());
507
508         if (f.optional_string_child ("AudioProcessor")) {
509                 _audio_processor = AudioProcessor::from_id (f.string_child ("AudioProcessor"));
510         } else {
511                 _audio_processor = 0;
512         }
513
514         _reel_type = static_cast<ReelType> (f.optional_number_child<int>("ReelType").get_value_or (static_cast<int>(REELTYPE_SINGLE)));
515         _reel_length = f.optional_number_child<int64_t>("ReelLength").get_value_or (2000000000);
516         _upload_after_make_dcp = f.optional_bool_child("UploadAfterMakeDCP").get_value_or (false);
517         _reencode_j2k = f.optional_bool_child("ReencodeJ2K").get_value_or(false);
518
519         list<string> notes;
520         /* This method is the only one that can return notes (so far) */
521         _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
522
523         /* Write backtraces to this film's directory, until another film is loaded */
524         if (_directory) {
525                 set_backtrace_file (file ("backtrace.txt"));
526         }
527
528         _dirty = false;
529         return notes;
530 }
531
532 /** Given a directory name, return its full path within the Film's directory.
533  *  @param d directory name within the Film's directory.
534  *  @param create true to create the directory (and its parents) if they do not exist.
535  */
536 boost::filesystem::path
537 Film::dir (boost::filesystem::path d, bool create) const
538 {
539         DCPOMATIC_ASSERT (_directory);
540
541         boost::filesystem::path p;
542         p /= _directory.get();
543         p /= d;
544
545         if (create) {
546                 boost::filesystem::create_directories (p);
547         }
548
549         return p;
550 }
551
552 /** Given a file or directory name, return its full path within the Film's directory.
553  *  Any required parent directories will be created.
554  */
555 boost::filesystem::path
556 Film::file (boost::filesystem::path f) const
557 {
558         DCPOMATIC_ASSERT (_directory);
559
560         boost::filesystem::path p;
561         p /= _directory.get();
562         p /= f;
563
564         boost::filesystem::create_directories (p.parent_path ());
565
566         return p;
567 }
568
569 list<int>
570 Film::mapped_audio_channels () const
571 {
572         list<int> mapped;
573
574         if (audio_processor ()) {
575                 /* Processors are mapped 1:1 to DCP outputs so we can work out mappings from there */
576                 for (int i = 0; i < audio_processor()->out_channels(); ++i) {
577                         mapped.push_back (i);
578                 }
579         } else {
580                 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
581                         if (i->audio) {
582                                 list<int> c = i->audio->mapping().mapped_output_channels ();
583                                 copy (c.begin(), c.end(), back_inserter (mapped));
584                         }
585                 }
586
587                 mapped.sort ();
588                 mapped.unique ();
589         }
590
591         return mapped;
592 }
593
594 /** @return a ISDCF-compliant name for a DCP of this film */
595 string
596 Film::isdcf_name (bool if_created_now) const
597 {
598         string d;
599
600         string raw_name = name ();
601
602         /* Split the raw name up into words */
603         vector<string> words;
604         split (words, raw_name, is_any_of (" _-"));
605
606         string fixed_name;
607
608         /* Add each word to fixed_name */
609         for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
610                 string w = *i;
611
612                 /* First letter is always capitalised */
613                 w[0] = toupper (w[0]);
614
615                 /* Count caps in w */
616                 size_t caps = 0;
617                 for (size_t i = 0; i < w.size(); ++i) {
618                         if (isupper (w[i])) {
619                                 ++caps;
620                         }
621                 }
622
623                 /* If w is all caps make the rest of it lower case, otherwise
624                    leave it alone.
625                 */
626                 if (caps == w.size ()) {
627                         for (size_t i = 1; i < w.size(); ++i) {
628                                 w[i] = tolower (w[i]);
629                         }
630                 }
631
632                 for (size_t i = 0; i < w.size(); ++i) {
633                         fixed_name += w[i];
634                 }
635         }
636
637         if (fixed_name.length() > 14) {
638                 fixed_name = fixed_name.substr (0, 14);
639         }
640
641         d += fixed_name;
642
643         if (dcp_content_type()) {
644                 d += "_" + dcp_content_type()->isdcf_name();
645                 d += "-" + raw_convert<string>(isdcf_metadata().content_version);
646         }
647
648         ISDCFMetadata const dm = isdcf_metadata ();
649
650         if (dm.temp_version) {
651                 d += "-Temp";
652         }
653
654         if (dm.pre_release) {
655                 d += "-Pre";
656         }
657
658         if (dm.red_band) {
659                 d += "-RedBand";
660         }
661
662         if (!dm.chain.empty ()) {
663                 d += "-" + dm.chain;
664         }
665
666         if (three_d ()) {
667                 d += "-3D";
668         }
669
670         if (dm.two_d_version_of_three_d) {
671                 d += "-2D";
672         }
673
674         if (!dm.mastered_luminance.empty ()) {
675                 d += "-" + dm.mastered_luminance;
676         }
677
678         if (video_frame_rate() != 24) {
679                 d += "-" + raw_convert<string>(video_frame_rate());
680         }
681
682         if (container()) {
683                 d += "_" + container()->isdcf_name();
684         }
685
686         /* XXX: this uses the first bit of content only */
687
688         /* Interior aspect ratio.  The standard says we don't do this for trailers, for some strange reason */
689         if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
690                 Ratio const * content_ratio = 0;
691                 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
692                         if (i->video) {
693                                 /* Here's the first piece of video content */
694                                 if (i->video->scale().ratio ()) {
695                                         content_ratio = i->video->scale().ratio ();
696                                 } else {
697                                         content_ratio = Ratio::from_ratio (i->video->size().ratio ());
698                                 }
699                                 break;
700                         }
701                 }
702
703                 if (content_ratio && content_ratio != container()) {
704                         /* This needs to be the numeric version of the ratio, and ::id() is close enough */
705                         d += "-" + content_ratio->id();
706                 }
707         }
708
709         if (!dm.audio_language.empty ()) {
710                 d += "_" + dm.audio_language;
711                 if (!dm.subtitle_language.empty()) {
712
713                         /* I'm not clear on the precise details of the convention for CCAP labelling;
714                            for now I'm just appending -CCAP if we have any closed captions.
715                         */
716
717                         bool burnt_in = true;
718                         bool ccap = false;
719                         BOOST_FOREACH (shared_ptr<Content> i, content()) {
720                                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
721                                         if (j->type() == TEXT_OPEN_SUBTITLE && j->use() && !j->burn()) {
722                                                 burnt_in = false;
723                                         } else if (j->type() == TEXT_CLOSED_CAPTION) {
724                                                 ccap = true;
725                                         }
726                                 }
727                         }
728
729                         string language = dm.subtitle_language;
730                         if (burnt_in && language != "XX") {
731                                 transform (language.begin(), language.end(), language.begin(), ::tolower);
732                         } else {
733                                 transform (language.begin(), language.end(), language.begin(), ::toupper);
734                         }
735
736                         d += "-" + language;
737                         if (ccap) {
738                                 d += "-CCAP";
739                         }
740                 } else {
741                         d += "-XX";
742                 }
743         }
744
745         if (!dm.territory.empty ()) {
746                 d += "_" + dm.territory;
747                 if (dm.rating.empty ()) {
748                         d += "-NR";
749                 } else {
750                         d += "-" + dm.rating;
751                 }
752         }
753
754         /* Count mapped audio channels */
755
756         pair<int, int> ch = audio_channel_types (mapped_audio_channels(), audio_channels());
757         if (!ch.first && !ch.second) {
758                 d += "_MOS";
759         } else if (ch.first) {
760                 d += String::compose("_%1%2", ch.first, ch.second);
761         }
762
763         /* XXX: HI/VI */
764
765         d += "_" + resolution_to_string (_resolution);
766
767         if (!dm.studio.empty ()) {
768                 d += "_" + dm.studio;
769         }
770
771         if (if_created_now) {
772                 d += "_" + boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
773         } else {
774                 d += "_" + boost::gregorian::to_iso_string (_isdcf_date);
775         }
776
777         if (!dm.facility.empty ()) {
778                 d += "_" + dm.facility;
779         }
780
781         if (_interop) {
782                 d += "_IOP";
783         } else {
784                 d += "_SMPTE";
785         }
786
787         if (three_d ()) {
788                 d += "-3D";
789         }
790
791         bool vf = false;
792         BOOST_FOREACH (shared_ptr<Content> i, content ()) {
793                 shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (i);
794                 if (!dc) {
795                         continue;
796                 }
797
798                 bool any_text = false;
799                 for (int i = 0; i < TEXT_COUNT; ++i) {
800                         if (dc->reference_text(static_cast<TextType>(i))) {
801                                 any_text = true;
802                         }
803                 }
804                 if (dc->reference_video() || dc->reference_audio() || any_text) {
805                         vf = true;
806                 }
807         }
808
809         if (vf) {
810                 d += "_VF";
811         } else {
812                 d += "_OV";
813         }
814
815         return d;
816 }
817
818 /** @return name to give the DCP */
819 string
820 Film::dcp_name (bool if_created_now) const
821 {
822         string unfiltered;
823         if (use_isdcf_name()) {
824                 return careful_string_filter (isdcf_name (if_created_now));
825         }
826
827         return careful_string_filter (name ());
828 }
829
830 void
831 Film::set_directory (boost::filesystem::path d)
832 {
833         _directory = d;
834         _dirty = true;
835 }
836
837 void
838 Film::set_name (string n)
839 {
840         ChangeSignaller<Film> ch (this, NAME);
841         _name = n;
842 }
843
844 void
845 Film::set_use_isdcf_name (bool u)
846 {
847         ChangeSignaller<Film> ch (this, USE_ISDCF_NAME);
848         _use_isdcf_name = u;
849 }
850
851 void
852 Film::set_dcp_content_type (DCPContentType const * t)
853 {
854         ChangeSignaller<Film> ch (this, DCP_CONTENT_TYPE);
855         _dcp_content_type = t;
856 }
857
858 void
859 Film::set_container (Ratio const * c)
860 {
861         ChangeSignaller<Film> ch (this, CONTAINER);
862         _container = c;
863 }
864
865 void
866 Film::set_resolution (Resolution r)
867 {
868         ChangeSignaller<Film> ch (this, RESOLUTION);
869         _resolution = r;
870 }
871
872 void
873 Film::set_j2k_bandwidth (int b)
874 {
875         ChangeSignaller<Film> ch (this, J2K_BANDWIDTH);
876         _j2k_bandwidth = b;
877 }
878
879 void
880 Film::set_isdcf_metadata (ISDCFMetadata m)
881 {
882         ChangeSignaller<Film> ch (this, ISDCF_METADATA);
883         _isdcf_metadata = m;
884 }
885
886 void
887 Film::set_video_frame_rate (int f)
888 {
889         ChangeSignaller<Film> ch (this, VIDEO_FRAME_RATE);
890         _video_frame_rate = f;
891 }
892
893 void
894 Film::set_audio_channels (int c)
895 {
896         ChangeSignaller<Film> ch (this, AUDIO_CHANNELS);
897         _audio_channels = c;
898 }
899
900 void
901 Film::set_three_d (bool t)
902 {
903         ChangeSignaller<Film> ch (this, THREE_D);
904         _three_d = t;
905
906         if (_three_d && _isdcf_metadata.two_d_version_of_three_d) {
907                 ChangeSignaller<Film> ch (this, ISDCF_METADATA);
908                 _isdcf_metadata.two_d_version_of_three_d = false;
909         }
910 }
911
912 void
913 Film::set_interop (bool i)
914 {
915         ChangeSignaller<Film> ch (this, INTEROP);
916         _interop = i;
917 }
918
919 void
920 Film::set_audio_processor (AudioProcessor const * processor)
921 {
922         ChangeSignaller<Film> ch1 (this, AUDIO_PROCESSOR);
923         ChangeSignaller<Film> ch2 (this, AUDIO_CHANNELS);
924         _audio_processor = processor;
925 }
926
927 void
928 Film::set_reel_type (ReelType t)
929 {
930         ChangeSignaller<Film> ch (this, REEL_TYPE);
931         _reel_type = t;
932 }
933
934 /** @param r Desired reel length in bytes */
935 void
936 Film::set_reel_length (int64_t r)
937 {
938         ChangeSignaller<Film> ch (this, REEL_LENGTH);
939         _reel_length = r;
940 }
941
942 void
943 Film::set_upload_after_make_dcp (bool u)
944 {
945         ChangeSignaller<Film> ch (this, UPLOAD_AFTER_MAKE_DCP);
946         _upload_after_make_dcp = u;
947 }
948
949 void
950 Film::set_reencode_j2k (bool r)
951 {
952         ChangeSignaller<Film> ch (this, REENCODE_J2K);
953         _reencode_j2k = r;
954 }
955
956 void
957 Film::signal_change (ChangeType type, int p)
958 {
959         signal_change (type, static_cast<Property>(p));
960 }
961
962 void
963 Film::signal_change (ChangeType type, Property p)
964 {
965         if (type == CHANGE_TYPE_DONE) {
966                 _dirty = true;
967
968                 if (p == Film::CONTENT) {
969                         set_video_frame_rate (_playlist->best_video_frame_rate ());
970                 }
971
972                 emit (boost::bind (boost::ref (Change), type, p));
973
974                 if (p == Film::VIDEO_FRAME_RATE || p == Film::SEQUENCE) {
975                         /* We want to call Playlist::maybe_sequence but this must happen after the
976                            main signal emission (since the butler will see that emission and un-suspend itself).
977                         */
978                         emit (boost::bind(&Playlist::maybe_sequence, _playlist.get()));
979                 }
980         } else {
981                 Change (type, p);
982         }
983 }
984
985 void
986 Film::set_isdcf_date_today ()
987 {
988         _isdcf_date = boost::gregorian::day_clock::local_day ();
989 }
990
991 boost::filesystem::path
992 Film::j2c_path (int reel, Frame frame, Eyes eyes, bool tmp) const
993 {
994         boost::filesystem::path p;
995         p /= "j2c";
996         p /= video_identifier ();
997
998         char buffer[256];
999         snprintf(buffer, sizeof(buffer), "%08d_%08" PRId64, reel, frame);
1000         string s (buffer);
1001
1002         if (eyes == EYES_LEFT) {
1003                 s += ".L";
1004         } else if (eyes == EYES_RIGHT) {
1005                 s += ".R";
1006         }
1007
1008         s += ".j2c";
1009
1010         if (tmp) {
1011                 s += ".tmp";
1012         }
1013
1014         p /= s;
1015         return file (p);
1016 }
1017
1018 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
1019 vector<CPLSummary>
1020 Film::cpls () const
1021 {
1022         if (!directory ()) {
1023                 return vector<CPLSummary> ();
1024         }
1025
1026         vector<CPLSummary> out;
1027
1028         boost::filesystem::path const dir = directory().get();
1029         for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
1030                 if (
1031                         boost::filesystem::is_directory (*i) &&
1032                         i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
1033                         ) {
1034
1035                         try {
1036                                 dcp::DCP dcp (*i);
1037                                 dcp.read ();
1038                                 DCPOMATIC_ASSERT (dcp.cpls().front()->file());
1039                                 out.push_back (
1040                                         CPLSummary (
1041                                                 i->path().leaf().string(),
1042                                                 dcp.cpls().front()->id(),
1043                                                 dcp.cpls().front()->annotation_text(),
1044                                                 dcp.cpls().front()->file().get()
1045                                                 )
1046                                         );
1047                         } catch (...) {
1048
1049                         }
1050                 }
1051         }
1052
1053         return out;
1054 }
1055
1056 void
1057 Film::set_signed (bool s)
1058 {
1059         ChangeSignaller<Film> ch (this, SIGNED);
1060         _signed = s;
1061 }
1062
1063 void
1064 Film::set_encrypted (bool e)
1065 {
1066         ChangeSignaller<Film> ch (this, ENCRYPTED);
1067         _encrypted = e;
1068 }
1069
1070 void
1071 Film::set_key (dcp::Key key)
1072 {
1073         ChangeSignaller<Film> ch (this, KEY);
1074         _key = key;
1075 }
1076
1077 ContentList
1078 Film::content () const
1079 {
1080         return _playlist->content ();
1081 }
1082
1083 /** @param content Content to add.
1084  *  @param disable_audio_analysis true to never do automatic audio analysis, even if it is enabled in configuration.
1085  */
1086 void
1087 Film::examine_and_add_content (shared_ptr<Content> content, bool disable_audio_analysis)
1088 {
1089         if (dynamic_pointer_cast<FFmpegContent> (content) && _directory) {
1090                 run_ffprobe (content->path(0), file ("ffprobe.log"), _log);
1091         }
1092
1093         shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), content));
1094
1095         _job_connections.push_back (
1096                 j->Finished.connect (bind (&Film::maybe_add_content, this, weak_ptr<Job>(j), weak_ptr<Content>(content), disable_audio_analysis))
1097                 );
1098
1099         JobManager::instance()->add (j);
1100 }
1101
1102 void
1103 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c, bool disable_audio_analysis)
1104 {
1105         shared_ptr<Job> job = j.lock ();
1106         if (!job || !job->finished_ok ()) {
1107                 return;
1108         }
1109
1110         shared_ptr<Content> content = c.lock ();
1111         if (!content) {
1112                 return;
1113         }
1114
1115         add_content (content);
1116
1117         if (Config::instance()->automatic_audio_analysis() && content->audio && !disable_audio_analysis) {
1118                 shared_ptr<Playlist> playlist (new Playlist);
1119                 playlist->add (content);
1120                 boost::signals2::connection c;
1121                 JobManager::instance()->analyse_audio (
1122                         shared_from_this(), playlist, false, c, bind (&Film::audio_analysis_finished, this)
1123                         );
1124                 _audio_analysis_connections.push_back (c);
1125         }
1126 }
1127
1128 void
1129 Film::add_content (shared_ptr<Content> c)
1130 {
1131         /* Add {video,subtitle} content after any existing {video,subtitle} content */
1132         if (c->video) {
1133                 c->set_position (_playlist->video_end());
1134         } else if (!c->text.empty()) {
1135                 c->set_position (_playlist->text_end());
1136         }
1137
1138         if (_template_film) {
1139                 /* Take settings from the first piece of content of c's type in _template */
1140                 BOOST_FOREACH (shared_ptr<Content> i, _template_film->content()) {
1141                         c->take_settings_from (i);
1142                 }
1143         }
1144
1145         _playlist->add (c);
1146 }
1147
1148 void
1149 Film::remove_content (shared_ptr<Content> c)
1150 {
1151         _playlist->remove (c);
1152 }
1153
1154 void
1155 Film::move_content_earlier (shared_ptr<Content> c)
1156 {
1157         _playlist->move_earlier (c);
1158 }
1159
1160 void
1161 Film::move_content_later (shared_ptr<Content> c)
1162 {
1163         _playlist->move_later (c);
1164 }
1165
1166 /** @return length of the film from time 0 to the last thing on the playlist */
1167 DCPTime
1168 Film::length () const
1169 {
1170         return _playlist->length().ceil(video_frame_rate());
1171 }
1172
1173 int
1174 Film::best_video_frame_rate () const
1175 {
1176         return _playlist->best_video_frame_rate ();
1177 }
1178
1179 FrameRateChange
1180 Film::active_frame_rate_change (DCPTime t) const
1181 {
1182         return _playlist->active_frame_rate_change (t, video_frame_rate ());
1183 }
1184
1185 void
1186 Film::playlist_content_change (ChangeType type, weak_ptr<Content> c, int p, bool frequent)
1187 {
1188         if (p == ContentProperty::VIDEO_FRAME_RATE) {
1189                 signal_change (type, Film::CONTENT);
1190         } else if (p == AudioContentProperty::STREAMS) {
1191                 signal_change (type, Film::NAME);
1192         }
1193
1194         if (type == CHANGE_TYPE_DONE) {
1195                 emit (boost::bind (boost::ref (ContentChange), type, c, p, frequent));
1196         } else {
1197                 ContentChange (type, c, p, frequent);
1198         }
1199 }
1200
1201 void
1202 Film::playlist_change (ChangeType type)
1203 {
1204         signal_change (type, CONTENT);
1205         signal_change (type, NAME);
1206 }
1207
1208 void
1209 Film::playlist_order_changed ()
1210 {
1211         /* XXX: missing PENDING */
1212         signal_change (CHANGE_TYPE_DONE, CONTENT_ORDER);
1213 }
1214
1215 int
1216 Film::audio_frame_rate () const
1217 {
1218         BOOST_FOREACH (shared_ptr<Content> i, content ()) {
1219                 if (i->audio && i->audio->has_rate_above_48k ()) {
1220                         return 96000;
1221                 }
1222         }
1223
1224         return 48000;
1225 }
1226
1227 void
1228 Film::set_sequence (bool s)
1229 {
1230         if (s == _sequence) {
1231                 return;
1232         }
1233
1234         ChangeSignaller<Film> cc (this, SEQUENCE);
1235         _sequence = s;
1236         _playlist->set_sequence (s);
1237 }
1238
1239 /** @return Size of the largest possible image in whatever resolution we are using */
1240 dcp::Size
1241 Film::full_frame () const
1242 {
1243         switch (_resolution) {
1244         case RESOLUTION_2K:
1245                 return dcp::Size (2048, 1080);
1246         case RESOLUTION_4K:
1247                 return dcp::Size (4096, 2160);
1248         }
1249
1250         DCPOMATIC_ASSERT (false);
1251         return dcp::Size ();
1252 }
1253
1254 /** @return Size of the frame */
1255 dcp::Size
1256 Film::frame_size () const
1257 {
1258         return fit_ratio_within (container()->ratio(), full_frame ());
1259 }
1260
1261 /** @param recipient KDM recipient certificate.
1262  *  @param trusted_devices Certificate thumbprints of other trusted devices (can be empty).
1263  *  @param cpl_file CPL filename.
1264  *  @param from KDM from time expressed as a local time with an offset from UTC.
1265  *  @param until KDM to time expressed as a local time with an offset from UTC.
1266  *  @param formulation KDM formulation to use.
1267  *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
1268  *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
1269  *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
1270  */
1271 dcp::EncryptedKDM
1272 Film::make_kdm (
1273         dcp::Certificate recipient,
1274         vector<string> trusted_devices,
1275         boost::filesystem::path cpl_file,
1276         dcp::LocalTime from,
1277         dcp::LocalTime until,
1278         dcp::Formulation formulation,
1279         bool disable_forensic_marking_picture,
1280         optional<int> disable_forensic_marking_audio
1281         ) const
1282 {
1283         if (!_encrypted) {
1284                 throw runtime_error (_("Cannot make a KDM as this project is not encrypted."));
1285         }
1286
1287         shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1288         shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
1289         if (!signer->valid ()) {
1290                 throw InvalidSignerError ();
1291         }
1292
1293         /* Find keys that have been added to imported, encrypted DCP content */
1294         list<dcp::DecryptedKDMKey> imported_keys;
1295         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1296                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent> (i);
1297                 if (d && d->kdm()) {
1298                         dcp::DecryptedKDM kdm (d->kdm().get(), Config::instance()->decryption_chain()->key().get());
1299                         list<dcp::DecryptedKDMKey> keys = kdm.keys ();
1300                         copy (keys.begin(), keys.end(), back_inserter (imported_keys));
1301                 }
1302         }
1303
1304         map<shared_ptr<const dcp::ReelMXF>, dcp::Key> keys;
1305
1306         BOOST_FOREACH(shared_ptr<const dcp::ReelAsset> i, cpl->reel_assets ()) {
1307                 shared_ptr<const dcp::ReelMXF> mxf = boost::dynamic_pointer_cast<const dcp::ReelMXF> (i);
1308                 if (!mxf || !mxf->key_id()) {
1309                         continue;
1310                 }
1311
1312                 /* Get any imported key for this ID */
1313                 bool done = false;
1314                 BOOST_FOREACH (dcp::DecryptedKDMKey j, imported_keys) {
1315                         if (j.id() == mxf->key_id().get()) {
1316                                 LOG_GENERAL ("Using imported key for %1", mxf->key_id().get());
1317                                 keys[mxf] = j.key();
1318                                 done = true;
1319                         }
1320                 }
1321
1322                 if (!done) {
1323                         /* No imported key; it must be an asset that we encrypted */
1324                         LOG_GENERAL ("Using our own key for %1", mxf->key_id().get());
1325                         keys[mxf] = key();
1326                 }
1327         }
1328
1329         return dcp::DecryptedKDM (
1330                 cpl->id(), keys, from, until, cpl->content_title_text(), cpl->content_title_text(), dcp::LocalTime().as_string()
1331                 ).encrypt (signer, recipient, trusted_devices, formulation, disable_forensic_marking_picture, disable_forensic_marking_audio);
1332 }
1333
1334 /** @param screens Screens to make KDMs for.
1335  *  @param cpl_file Path to CPL to make KDMs for.
1336  *  @param from KDM from time expressed as a local time in the time zone of the Screen's Cinema.
1337  *  @param until KDM to time expressed as a local time in the time zone of the Screen's Cinema.
1338  *  @param formulation KDM formulation to use.
1339  *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
1340  *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
1341  *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
1342  */
1343 list<ScreenKDM>
1344 Film::make_kdms (
1345         list<shared_ptr<Screen> > screens,
1346         boost::filesystem::path cpl_file,
1347         boost::posix_time::ptime from,
1348         boost::posix_time::ptime until,
1349         dcp::Formulation formulation,
1350         bool disable_forensic_marking_picture,
1351         optional<int> disable_forensic_marking_audio
1352         ) const
1353 {
1354         list<ScreenKDM> kdms;
1355
1356         BOOST_FOREACH (shared_ptr<Screen> i, screens) {
1357                 if (i->recipient) {
1358                         dcp::EncryptedKDM const kdm = make_kdm (
1359                                 i->recipient.get(),
1360                                 i->trusted_device_thumbprints(),
1361                                 cpl_file,
1362                                 dcp::LocalTime (from, i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute()),
1363                                 dcp::LocalTime (until, i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute()),
1364                                 formulation,
1365                                 disable_forensic_marking_picture,
1366                                 disable_forensic_marking_audio
1367                                 );
1368
1369                         kdms.push_back (ScreenKDM (i, kdm));
1370                 }
1371         }
1372
1373         return kdms;
1374 }
1375
1376 /** @return The approximate disk space required to encode a DCP of this film with the
1377  *  current settings, in bytes.
1378  */
1379 uint64_t
1380 Film::required_disk_space () const
1381 {
1382         return _playlist->required_disk_space (j2k_bandwidth(), audio_channels(), audio_frame_rate());
1383 }
1384
1385 /** This method checks the disk that the Film is on and tries to decide whether or not
1386  *  there will be enough space to make a DCP for it.  If so, true is returned; if not,
1387  *  false is returned and required and available are filled in with the amount of disk space
1388  *  required and available respectively (in Gb).
1389  *
1390  *  Note: the decision made by this method isn't, of course, 100% reliable.
1391  */
1392 bool
1393 Film::should_be_enough_disk_space (double& required, double& available, bool& can_hard_link) const
1394 {
1395         /* Create a test file and see if we can hard-link it */
1396         boost::filesystem::path test = internal_video_asset_dir() / "test";
1397         boost::filesystem::path test2 = internal_video_asset_dir() / "test2";
1398         can_hard_link = true;
1399         FILE* f = fopen_boost (test, "w");
1400         if (f) {
1401                 fclose (f);
1402                 boost::system::error_code ec;
1403                 boost::filesystem::create_hard_link (test, test2, ec);
1404                 if (ec) {
1405                         can_hard_link = false;
1406                 }
1407                 boost::filesystem::remove (test);
1408                 boost::filesystem::remove (test2);
1409         }
1410
1411         boost::filesystem::space_info s = boost::filesystem::space (internal_video_asset_dir ());
1412         required = double (required_disk_space ()) / 1073741824.0f;
1413         if (!can_hard_link) {
1414                 required *= 2;
1415         }
1416         available = double (s.available) / 1073741824.0f;
1417         return (available - required) > 1;
1418 }
1419
1420 string
1421 Film::subtitle_language () const
1422 {
1423         set<string> languages;
1424
1425         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1426                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
1427                         languages.insert (j->language ());
1428                 }
1429         }
1430
1431         string all;
1432         BOOST_FOREACH (string s, languages) {
1433                 if (!all.empty ()) {
1434                         all += "/" + s;
1435                 } else {
1436                         all += s;
1437                 }
1438         }
1439
1440         return all;
1441 }
1442
1443 /** Change the gains of the supplied AudioMapping to make it a default
1444  *  for this film.  The defaults are guessed based on what processor (if any)
1445  *  is in use, the number of input channels and any filename supplied.
1446  */
1447 void
1448 Film::make_audio_mapping_default (AudioMapping& mapping, optional<boost::filesystem::path> filename) const
1449 {
1450         static string const regex[] = {
1451                 ".*[\\._-]L[\\._-].*",
1452                 ".*[\\._-]R[\\._-].*",
1453                 ".*[\\._-]C[\\._-].*",
1454                 ".*[\\._-]Lfe[\\._-].*",
1455                 ".*[\\._-]Ls[\\._-].*",
1456                 ".*[\\._-]Rs[\\._-].*"
1457         };
1458
1459         static int const regexes = sizeof(regex) / sizeof(*regex);
1460
1461         if (audio_processor ()) {
1462                 audio_processor()->make_audio_mapping_default (mapping);
1463         } else {
1464                 mapping.make_zero ();
1465                 if (mapping.input_channels() == 1) {
1466                         bool guessed = false;
1467
1468                         /* See if we can guess where this stream should go */
1469                         if (filename) {
1470                                 for (int i = 0; i < regexes; ++i) {
1471                                         boost::regex e (regex[i], boost::regex::icase);
1472                                         if (boost::regex_match (filename->string(), e) && i < mapping.output_channels()) {
1473                                                 mapping.set (0, i, 1);
1474                                                 guessed = true;
1475                                         }
1476                                 }
1477                         }
1478
1479                         if (!guessed) {
1480                                 /* If we have no idea, just put it on centre */
1481                                 mapping.set (0, static_cast<int> (dcp::CENTRE), 1);
1482                         }
1483                 } else {
1484                         /* 1:1 mapping */
1485                         for (int i = 0; i < min (mapping.input_channels(), mapping.output_channels()); ++i) {
1486                                 mapping.set (i, i, 1);
1487                         }
1488                 }
1489         }
1490 }
1491
1492 /** @return The names of the channels that audio contents' outputs are passed into;
1493  *  this is either the DCP or a AudioProcessor.
1494  */
1495 vector<string>
1496 Film::audio_output_names () const
1497 {
1498         if (audio_processor ()) {
1499                 return audio_processor()->input_names ();
1500         }
1501
1502         DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
1503
1504         vector<string> n;
1505
1506         for (int i = 0; i < audio_channels(); ++i) {
1507                 n.push_back (short_audio_channel_name (i));
1508         }
1509
1510         return n;
1511 }
1512
1513 void
1514 Film::repeat_content (ContentList c, int n)
1515 {
1516         _playlist->repeat (c, n);
1517 }
1518
1519 void
1520 Film::remove_content (ContentList c)
1521 {
1522         _playlist->remove (c);
1523 }
1524
1525 void
1526 Film::audio_analysis_finished ()
1527 {
1528         /* XXX */
1529 }
1530
1531 list<DCPTimePeriod>
1532 Film::reels () const
1533 {
1534         list<DCPTimePeriod> p;
1535         DCPTime const len = length();
1536
1537         switch (reel_type ()) {
1538         case REELTYPE_SINGLE:
1539                 p.push_back (DCPTimePeriod (DCPTime (), len));
1540                 break;
1541         case REELTYPE_BY_VIDEO_CONTENT:
1542         {
1543                 optional<DCPTime> last_split;
1544                 shared_ptr<Content> last_video;
1545                 BOOST_FOREACH (shared_ptr<Content> c, content ()) {
1546                         if (c->video) {
1547                                 BOOST_FOREACH (DCPTime t, c->reel_split_points()) {
1548                                         if (last_split) {
1549                                                 p.push_back (DCPTimePeriod (last_split.get(), t));
1550                                         }
1551                                         last_split = t;
1552                                 }
1553                                 last_video = c;
1554                         }
1555                 }
1556
1557                 DCPTime video_end = last_video ? last_video->end() : DCPTime(0);
1558                 if (last_split) {
1559                         /* Definitely go from the last split to the end of the video content */
1560                         p.push_back (DCPTimePeriod (last_split.get(), video_end));
1561                 }
1562
1563                 if (video_end < len) {
1564                         /* And maybe go after that as well if there is any non-video hanging over the end */
1565                         p.push_back (DCPTimePeriod (video_end, len));
1566                 }
1567                 break;
1568         }
1569         case REELTYPE_BY_LENGTH:
1570         {
1571                 DCPTime current;
1572                 /* Integer-divide reel length by the size of one frame to give the number of frames per reel */
1573                 Frame const reel_in_frames = _reel_length / ((j2k_bandwidth() / video_frame_rate()) / 8);
1574                 while (current < len) {
1575                         DCPTime end = min (len, current + DCPTime::from_frames (reel_in_frames, video_frame_rate ()));
1576                         p.push_back (DCPTimePeriod (current, end));
1577                         current = end;
1578                 }
1579                 break;
1580         }
1581         }
1582
1583         return p;
1584 }
1585
1586 /** @param period A period within the DCP
1587  *  @return Name of the content which most contributes to the given period.
1588  */
1589 string
1590 Film::content_summary (DCPTimePeriod period) const
1591 {
1592         return _playlist->content_summary (period);
1593 }
1594
1595 void
1596 Film::use_template (string name)
1597 {
1598         _template_film.reset (new Film (optional<boost::filesystem::path>()));
1599         _template_film->read_metadata (Config::instance()->template_path (name));
1600         _use_isdcf_name = _template_film->_use_isdcf_name;
1601         _dcp_content_type = _template_film->_dcp_content_type;
1602         _container = _template_film->_container;
1603         _resolution = _template_film->_resolution;
1604         _j2k_bandwidth = _template_film->_j2k_bandwidth;
1605         _video_frame_rate = _template_film->_video_frame_rate;
1606         _signed = _template_film->_signed;
1607         _encrypted = _template_film->_encrypted;
1608         _audio_channels = _template_film->_audio_channels;
1609         _sequence = _template_film->_sequence;
1610         _three_d = _template_film->_three_d;
1611         _interop = _template_film->_interop;
1612         _audio_processor = _template_film->_audio_processor;
1613         _reel_type = _template_film->_reel_type;
1614         _reel_length = _template_film->_reel_length;
1615         _upload_after_make_dcp = _template_film->_upload_after_make_dcp;
1616         _isdcf_metadata = _template_film->_isdcf_metadata;
1617 }
1618
1619 pair<double, double>
1620 Film::speed_up_range (int dcp_frame_rate) const
1621 {
1622         return _playlist->speed_up_range (dcp_frame_rate);
1623 }
1624
1625 void
1626 Film::copy_from (shared_ptr<const Film> film)
1627 {
1628         read_metadata (film->file (metadata_file));
1629 }
1630
1631 bool
1632 Film::references_dcp_video () const
1633 {
1634         BOOST_FOREACH (shared_ptr<Content> i, _playlist->content()) {
1635                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
1636                 if (d && d->reference_video()) {
1637                         return true;
1638                 }
1639         }
1640
1641         return false;
1642 }
1643
1644 bool
1645 Film::references_dcp_audio () const
1646 {
1647         BOOST_FOREACH (shared_ptr<Content> i, _playlist->content()) {
1648                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
1649                 if (d && d->reference_audio()) {
1650                         return true;
1651                 }
1652         }
1653
1654         return false;
1655 }
1656
1657 list<DCPTextTrack>
1658 Film::closed_caption_tracks () const
1659 {
1660         list<DCPTextTrack> tt;
1661         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1662                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
1663                         /* XXX: Empty DCPTextTrack ends up being a magic value here */
1664                         DCPTextTrack dtt = j->dcp_track().get_value_or(DCPTextTrack());
1665                         if (j->type() == TEXT_CLOSED_CAPTION && find(tt.begin(), tt.end(), dtt) == tt.end()) {
1666                                 tt.push_back (dtt);
1667                         }
1668                 }
1669         }
1670
1671         return tt;
1672 }