Make ContentChange into a generic ChangeSignaller and use it for Film
[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 <libcxml/cxml.h>
56 #include <dcp/cpl.h>
57 #include <dcp/certificate_chain.h>
58 #include <dcp/util.h>
59 #include <dcp/local_time.h>
60 #include <dcp/decrypted_kdm.h>
61 #include <dcp/raw_convert.h>
62 #include <dcp/reel_mxf.h>
63 #include <dcp/reel_asset.h>
64 #include <libxml++/libxml++.h>
65 #include <boost/filesystem.hpp>
66 #include <boost/algorithm/string.hpp>
67 #include <boost/foreach.hpp>
68 #include <boost/regex.hpp>
69 #include <unistd.h>
70 #include <stdexcept>
71 #include <iostream>
72 #include <algorithm>
73 #include <cstdlib>
74 #include <iomanip>
75 #include <set>
76
77 #include "i18n.h"
78
79 using std::string;
80 using std::pair;
81 using std::vector;
82 using std::setfill;
83 using std::min;
84 using std::max;
85 using std::make_pair;
86 using std::cout;
87 using std::list;
88 using std::set;
89 using std::runtime_error;
90 using std::copy;
91 using std::back_inserter;
92 using std::map;
93 using boost::shared_ptr;
94 using boost::weak_ptr;
95 using boost::dynamic_pointer_cast;
96 using boost::optional;
97 using boost::is_any_of;
98 using dcp::raw_convert;
99
100 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
101 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, LogEntry::TYPE_GENERAL);
102
103 string const Film::metadata_file = "metadata.xml";
104
105 /* 5 -> 6
106  * AudioMapping XML changed.
107  * 6 -> 7
108  * Subtitle offset changed to subtitle y offset, and subtitle x offset added.
109  * 7 -> 8
110  * Use <Scale> tag in <VideoContent> rather than <Ratio>.
111  * 8 -> 9
112  * DCI -> ISDCF
113  * 9 -> 10
114  * Subtitle X and Y scale.
115  *
116  * Bumped to 32 for 2.0 branch; some times are expressed in Times rather
117  * than frames now.
118  *
119  * 32 -> 33
120  * Changed <Period> to <Subtitle> in FFmpegSubtitleStream
121  * 33 -> 34
122  * Content only contains audio/subtitle-related tags if those things
123  * are present.
124  * 34 -> 35
125  * VideoFrameType in VideoContent is a string rather than an integer.
126  * 35 -> 36
127  * EffectColour rather than OutlineColour in Subtitle.
128  * 36 -> 37
129  * TextContent can be in a Caption tag, and some of the tag names
130  * have had Subtitle prefixes or suffixes removed.
131  */
132 int const Film::current_state_version = 37;
133
134 /** Construct a Film object in a given directory.
135  *
136  *  @param dir Film directory.
137  */
138
139 Film::Film (optional<boost::filesystem::path> dir)
140         : _playlist (new Playlist)
141         , _use_isdcf_name (true)
142         , _dcp_content_type (Config::instance()->default_dcp_content_type ())
143         , _container (Config::instance()->default_container ())
144         , _resolution (RESOLUTION_2K)
145         , _signed (true)
146         , _encrypted (false)
147         , _context_id (dcp::make_uuid ())
148         , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
149         , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
150         , _video_frame_rate (24)
151         , _audio_channels (Config::instance()->default_dcp_audio_channels ())
152         , _three_d (false)
153         , _sequence (true)
154         , _interop (Config::instance()->default_interop ())
155         , _audio_processor (0)
156         , _reel_type (REELTYPE_SINGLE)
157         , _reel_length (2000000000)
158         , _upload_after_make_dcp (Config::instance()->default_upload_after_make_dcp())
159         , _state_version (current_state_version)
160         , _dirty (false)
161 {
162         set_isdcf_date_today ();
163
164         _playlist_change_connection = _playlist->Change.connect (bind (&Film::playlist_change, this, _1));
165         _playlist_order_changed_connection = _playlist->OrderChanged.connect (bind (&Film::playlist_order_changed, this));
166         _playlist_content_change_connection = _playlist->ContentChange.connect (bind (&Film::playlist_content_change, this, _1, _2, _3, _4));
167
168         if (dir) {
169                 /* Make state.directory a complete path without ..s (where possible)
170                    (Code swiped from Adam Bowen on stackoverflow)
171                    XXX: couldn't/shouldn't this just be boost::filesystem::canonical?
172                 */
173
174                 boost::filesystem::path p (boost::filesystem::system_complete (dir.get()));
175                 boost::filesystem::path result;
176                 for (boost::filesystem::path::iterator i = p.begin(); i != p.end(); ++i) {
177                         if (*i == "..") {
178                                 if (boost::filesystem::is_symlink (result) || result.filename() == "..") {
179                                         result /= *i;
180                                 } else {
181                                         result = result.parent_path ();
182                                 }
183                         } else if (*i != ".") {
184                                 result /= *i;
185                         }
186                 }
187
188                 set_directory (result.make_preferred ());
189         }
190
191         if (_directory) {
192                 _log.reset (new FileLog (file ("log")));
193         } else {
194                 _log.reset (new NullLog);
195         }
196
197         _playlist->set_sequence (_sequence);
198 }
199
200 Film::~Film ()
201 {
202         BOOST_FOREACH (boost::signals2::connection& i, _job_connections) {
203                 i.disconnect ();
204         }
205
206         BOOST_FOREACH (boost::signals2::connection& i, _audio_analysis_connections) {
207                 i.disconnect ();
208         }
209 }
210
211 string
212 Film::video_identifier () const
213 {
214         DCPOMATIC_ASSERT (container ());
215
216         string s = container()->id()
217                 + "_" + resolution_to_string (_resolution)
218                 + "_" + _playlist->video_identifier()
219                 + "_" + raw_convert<string>(_video_frame_rate)
220                 + "_" + raw_convert<string>(j2k_bandwidth());
221
222         if (encrypted ()) {
223                 s += "_E";
224         } else {
225                 s += "_P";
226         }
227
228         if (_interop) {
229                 s += "_I";
230         } else {
231                 s += "_S";
232         }
233
234         if (_three_d) {
235                 s += "_3D";
236         }
237
238         return s;
239 }
240
241 /** @return The file to write video frame info to */
242 boost::filesystem::path
243 Film::info_file (DCPTimePeriod period) const
244 {
245         boost::filesystem::path p;
246         p /= "info";
247         p /= video_identifier () + "_" + raw_convert<string> (period.from.get()) + "_" + raw_convert<string> (period.to.get());
248         return file (p);
249 }
250
251 boost::filesystem::path
252 Film::internal_video_asset_dir () const
253 {
254         return dir ("video");
255 }
256
257 boost::filesystem::path
258 Film::internal_video_asset_filename (DCPTimePeriod p) const
259 {
260         return video_identifier() + "_" + raw_convert<string> (p.from.get()) + "_" + raw_convert<string> (p.to.get()) + ".mxf";
261 }
262
263 boost::filesystem::path
264 Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
265 {
266         boost::filesystem::path p = dir ("analysis");
267
268         Digester digester;
269         BOOST_FOREACH (shared_ptr<Content> i, playlist->content ()) {
270                 if (!i->audio) {
271                         continue;
272                 }
273
274                 digester.add (i->digest ());
275                 digester.add (i->audio->mapping().digest ());
276                 if (playlist->content().size() != 1) {
277                         /* Analyses should be considered equal regardless of gain
278                            if they were made from just one piece of content.  This
279                            is because we can fake any gain change in a single-content
280                            analysis at the plotting stage rather than having to
281                            recompute it.
282                         */
283                         digester.add (i->audio->gain ());
284                 }
285         }
286
287         if (audio_processor ()) {
288                 digester.add (audio_processor()->id ());
289         }
290
291         p /= digester.get ();
292         return p;
293 }
294
295 /** Add suitable Jobs to the JobManager to create a DCP for this Film */
296 void
297 Film::make_dcp ()
298 {
299         if (dcp_name().find ("/") != string::npos) {
300                 throw BadSettingError (_("name"), _("Cannot contain slashes"));
301         }
302
303         if (container() == 0) {
304                 throw MissingSettingError (_("container"));
305         }
306
307         if (content().empty()) {
308                 throw runtime_error (_("You must add some content to the DCP before creating it"));
309         }
310
311         if (dcp_content_type() == 0) {
312                 throw MissingSettingError (_("content type"));
313         }
314
315         if (name().empty()) {
316                 set_name ("DCP");
317         }
318
319         BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
320                 if (!i->paths_valid()) {
321                         throw runtime_error (_("some of your content is missing"));
322                 }
323                 shared_ptr<const DCPContent> dcp = dynamic_pointer_cast<const DCPContent> (i);
324                 if (dcp && dcp->needs_kdm()) {
325                         throw runtime_error (_("Some of your content needs a KDM"));
326                 }
327                 if (dcp && dcp->needs_assets()) {
328                         throw runtime_error (_("Some of your content needs an OV"));
329                 }
330         }
331
332         set_isdcf_date_today ();
333
334         BOOST_FOREACH (string i, environment_info ()) {
335                 LOG_GENERAL_NC (i);
336         }
337
338         BOOST_FOREACH (shared_ptr<const Content> i, content ()) {
339                 LOG_GENERAL ("Content: %1", i->technical_summary());
340         }
341         LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
342         if (Config::instance()->only_servers_encode ()) {
343                 LOG_GENERAL_NC ("0 threads: ONLY SERVERS SET TO ENCODE");
344         } else {
345                 LOG_GENERAL ("%1 threads", Config::instance()->master_encoding_threads());
346         }
347         LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
348
349         shared_ptr<TranscodeJob> tj (new TranscodeJob (shared_from_this()));
350         tj->set_encoder (shared_ptr<Encoder> (new DCPEncoder (shared_from_this(), tj)));
351         JobManager::instance()->add (tj);
352 }
353
354 /** Start a job to send our DCP to the configured TMS */
355 void
356 Film::send_dcp_to_tms ()
357 {
358         shared_ptr<Job> j (new UploadJob (shared_from_this()));
359         JobManager::instance()->add (j);
360 }
361
362 shared_ptr<xmlpp::Document>
363 Film::metadata (bool with_content_paths) const
364 {
365         shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
366         xmlpp::Element* root = doc->create_root_node ("Metadata");
367
368         root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
369         root->add_child("Name")->add_child_text (_name);
370         root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
371
372         if (_dcp_content_type) {
373                 root->add_child("DCPContentType")->add_child_text (_dcp_content_type->isdcf_name ());
374         }
375
376         if (_container) {
377                 root->add_child("Container")->add_child_text (_container->id ());
378         }
379
380         root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
381         root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
382         _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
383         root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
384         root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
385         root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
386         root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
387         root->add_child("Sequence")->add_child_text (_sequence ? "1" : "0");
388         root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
389         root->add_child("Signed")->add_child_text (_signed ? "1" : "0");
390         root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
391         root->add_child("Key")->add_child_text (_key.hex ());
392         root->add_child("ContextID")->add_child_text (_context_id);
393         if (_audio_processor) {
394                 root->add_child("AudioProcessor")->add_child_text (_audio_processor->id ());
395         }
396         root->add_child("ReelType")->add_child_text (raw_convert<string> (static_cast<int> (_reel_type)));
397         root->add_child("ReelLength")->add_child_text (raw_convert<string> (_reel_length));
398         root->add_child("UploadAfterMakeDCP")->add_child_text (_upload_after_make_dcp ? "1" : "0");
399         _playlist->as_xml (root->add_child ("Playlist"), with_content_paths);
400
401         return doc;
402 }
403
404 /** Write state to our `metadata' file */
405 void
406 Film::write_metadata () const
407 {
408         DCPOMATIC_ASSERT (directory());
409         boost::filesystem::create_directories (directory().get());
410         shared_ptr<xmlpp::Document> doc = metadata ();
411         doc->write_to_file_formatted (file(metadata_file).string ());
412         _dirty = false;
413 }
414
415 /** Write a template from this film */
416 void
417 Film::write_template (boost::filesystem::path path) const
418 {
419         boost::filesystem::create_directories (path.parent_path());
420         shared_ptr<xmlpp::Document> doc = metadata (false);
421         doc->write_to_file_formatted (path.string ());
422 }
423
424 /** Read state from our metadata file.
425  *  @return Notes about things that the user should know about, or empty.
426  */
427 list<string>
428 Film::read_metadata (optional<boost::filesystem::path> path)
429 {
430         if (!path) {
431                 if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file (metadata_file))) {
432                         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!"));
433                 }
434
435                 path = file (metadata_file);
436         }
437
438         cxml::Document f ("Metadata");
439         f.read_file (path.get ());
440
441         _state_version = f.number_child<int> ("Version");
442         if (_state_version > current_state_version) {
443                 throw runtime_error (_("This film was created with a newer version of DCP-o-matic, and it cannot be loaded into this version.  Sorry!"));
444         }
445
446         _name = f.string_child ("Name");
447         if (_state_version >= 9) {
448                 _use_isdcf_name = f.bool_child ("UseISDCFName");
449                 _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
450                 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
451         } else {
452                 _use_isdcf_name = f.bool_child ("UseDCIName");
453                 _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
454                 _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
455         }
456
457         {
458                 optional<string> c = f.optional_string_child ("DCPContentType");
459                 if (c) {
460                         _dcp_content_type = DCPContentType::from_isdcf_name (c.get ());
461                 }
462         }
463
464         {
465                 optional<string> c = f.optional_string_child ("Container");
466                 if (c) {
467                         _container = Ratio::from_id (c.get ());
468                 }
469         }
470
471         _resolution = string_to_resolution (f.string_child ("Resolution"));
472         _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
473         _video_frame_rate = f.number_child<int> ("VideoFrameRate");
474         _signed = f.optional_bool_child("Signed").get_value_or (true);
475         _encrypted = f.bool_child ("Encrypted");
476         _audio_channels = f.number_child<int> ("AudioChannels");
477         /* We used to allow odd numbers (and zero) channels, but it's just not worth
478            the pain.
479         */
480         if (_audio_channels == 0) {
481                 _audio_channels = 2;
482         } else if ((_audio_channels % 2) == 1) {
483                 _audio_channels++;
484         }
485
486         if (f.optional_bool_child("SequenceVideo")) {
487                 _sequence = f.bool_child("SequenceVideo");
488         } else {
489                 _sequence = f.bool_child("Sequence");
490         }
491
492         _three_d = f.bool_child ("ThreeD");
493         _interop = f.bool_child ("Interop");
494         _key = dcp::Key (f.string_child ("Key"));
495         _context_id = f.optional_string_child("ContextID").get_value_or (dcp::make_uuid ());
496
497         if (f.optional_string_child ("AudioProcessor")) {
498                 _audio_processor = AudioProcessor::from_id (f.string_child ("AudioProcessor"));
499         } else {
500                 _audio_processor = 0;
501         }
502
503         _reel_type = static_cast<ReelType> (f.optional_number_child<int>("ReelType").get_value_or (static_cast<int>(REELTYPE_SINGLE)));
504         _reel_length = f.optional_number_child<int64_t>("ReelLength").get_value_or (2000000000);
505         _upload_after_make_dcp = f.optional_bool_child("UploadAfterMakeDCP").get_value_or (false);
506
507         list<string> notes;
508         /* This method is the only one that can return notes (so far) */
509         _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
510
511         /* Write backtraces to this film's directory, until another film is loaded */
512         if (_directory) {
513                 set_backtrace_file (file ("backtrace.txt"));
514         }
515
516         _dirty = false;
517         return notes;
518 }
519
520 /** Given a directory name, return its full path within the Film's directory.
521  *  @param d directory name within the Film's directory.
522  *  @param create true to create the directory (and its parents) if they do not exist.
523  */
524 boost::filesystem::path
525 Film::dir (boost::filesystem::path d, bool create) const
526 {
527         DCPOMATIC_ASSERT (_directory);
528
529         boost::filesystem::path p;
530         p /= _directory.get();
531         p /= d;
532
533         if (create) {
534                 boost::filesystem::create_directories (p);
535         }
536
537         return p;
538 }
539
540 /** Given a file or directory name, return its full path within the Film's directory.
541  *  Any required parent directories will be created.
542  */
543 boost::filesystem::path
544 Film::file (boost::filesystem::path f) const
545 {
546         DCPOMATIC_ASSERT (_directory);
547
548         boost::filesystem::path p;
549         p /= _directory.get();
550         p /= f;
551
552         boost::filesystem::create_directories (p.parent_path ());
553
554         return p;
555 }
556
557 list<int>
558 Film::mapped_audio_channels () const
559 {
560         list<int> mapped;
561
562         if (audio_processor ()) {
563                 /* Processors are mapped 1:1 to DCP outputs so we can work out mappings from there */
564                 for (int i = 0; i < audio_processor()->out_channels(); ++i) {
565                         mapped.push_back (i);
566                 }
567         } else {
568                 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
569                         if (i->audio) {
570                                 list<int> c = i->audio->mapping().mapped_output_channels ();
571                                 copy (c.begin(), c.end(), back_inserter (mapped));
572                         }
573                 }
574
575                 mapped.sort ();
576                 mapped.unique ();
577         }
578
579         return mapped;
580 }
581
582 /** @return a ISDCF-compliant name for a DCP of this film */
583 string
584 Film::isdcf_name (bool if_created_now) const
585 {
586         string d;
587
588         string raw_name = name ();
589
590         /* Split the raw name up into words */
591         vector<string> words;
592         split (words, raw_name, is_any_of (" _-"));
593
594         string fixed_name;
595
596         /* Add each word to fixed_name */
597         for (vector<string>::const_iterator i = words.begin(); i != words.end(); ++i) {
598                 string w = *i;
599
600                 /* First letter is always capitalised */
601                 w[0] = toupper (w[0]);
602
603                 /* Count caps in w */
604                 size_t caps = 0;
605                 for (size_t i = 0; i < w.size(); ++i) {
606                         if (isupper (w[i])) {
607                                 ++caps;
608                         }
609                 }
610
611                 /* If w is all caps make the rest of it lower case, otherwise
612                    leave it alone.
613                 */
614                 if (caps == w.size ()) {
615                         for (size_t i = 1; i < w.size(); ++i) {
616                                 w[i] = tolower (w[i]);
617                         }
618                 }
619
620                 for (size_t i = 0; i < w.size(); ++i) {
621                         fixed_name += w[i];
622                 }
623         }
624
625         if (fixed_name.length() > 14) {
626                 fixed_name = fixed_name.substr (0, 14);
627         }
628
629         d += fixed_name;
630
631         if (dcp_content_type()) {
632                 d += "_" + dcp_content_type()->isdcf_name();
633                 d += "-" + raw_convert<string>(isdcf_metadata().content_version);
634         }
635
636         ISDCFMetadata const dm = isdcf_metadata ();
637
638         if (dm.temp_version) {
639                 d += "-Temp";
640         }
641
642         if (dm.pre_release) {
643                 d += "-Pre";
644         }
645
646         if (dm.red_band) {
647                 d += "-RedBand";
648         }
649
650         if (!dm.chain.empty ()) {
651                 d += "-" + dm.chain;
652         }
653
654         if (three_d ()) {
655                 d += "-3D";
656         }
657
658         if (dm.two_d_version_of_three_d) {
659                 d += "-2D";
660         }
661
662         if (!dm.mastered_luminance.empty ()) {
663                 d += "-" + dm.mastered_luminance;
664         }
665
666         if (video_frame_rate() != 24) {
667                 d += "-" + raw_convert<string>(video_frame_rate());
668         }
669
670         if (container()) {
671                 d += "_" + container()->isdcf_name();
672         }
673
674         /* XXX: this uses the first bit of content only */
675
676         /* Interior aspect ratio.  The standard says we don't do this for trailers, for some strange reason */
677         if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
678                 Ratio const * content_ratio = 0;
679                 BOOST_FOREACH (shared_ptr<Content> i, content ()) {
680                         if (i->video) {
681                                 /* Here's the first piece of video content */
682                                 if (i->video->scale().ratio ()) {
683                                         content_ratio = i->video->scale().ratio ();
684                                 } else {
685                                         content_ratio = Ratio::from_ratio (i->video->size().ratio ());
686                                 }
687                                 break;
688                         }
689                 }
690
691                 if (content_ratio && content_ratio != container()) {
692                         /* This needs to be the numeric version of the ratio, and ::id() is close enough */
693                         d += "-" + content_ratio->id();
694                 }
695         }
696
697         if (!dm.audio_language.empty ()) {
698                 d += "_" + dm.audio_language;
699                 if (!dm.subtitle_language.empty()) {
700
701                         /* I'm not clear on the precise details of the convention for CCAP labelling;
702                            for now I'm just appending -CCAP if we have any closed captions.
703                         */
704
705                         bool burnt_in = true;
706                         bool ccap = false;
707                         BOOST_FOREACH (shared_ptr<Content> i, content()) {
708                                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
709                                         if (j->type() == TEXT_OPEN_SUBTITLE && j->use() && !j->burn()) {
710                                                 burnt_in = false;
711                                         } else if (j->type() == TEXT_CLOSED_CAPTION) {
712                                                 ccap = true;
713                                         }
714                                 }
715                         }
716
717                         string language = dm.subtitle_language;
718                         if (burnt_in && language != "XX") {
719                                 transform (language.begin(), language.end(), language.begin(), ::tolower);
720                         } else {
721                                 transform (language.begin(), language.end(), language.begin(), ::toupper);
722                         }
723
724                         d += "-" + language;
725                         if (ccap) {
726                                 d += "-CCAP";
727                         }
728                 } else {
729                         d += "-XX";
730                 }
731         }
732
733         if (!dm.territory.empty ()) {
734                 d += "_" + dm.territory;
735                 if (dm.rating.empty ()) {
736                         d += "-NR";
737                 } else {
738                         d += "-" + dm.rating;
739                 }
740         }
741
742         /* Count mapped audio channels */
743
744         pair<int, int> ch = audio_channel_types (mapped_audio_channels(), audio_channels());
745         if (!ch.first && !ch.second) {
746                 d += "_MOS";
747         } else if (ch.first) {
748                 d += String::compose("_%1%2", ch.first, ch.second);
749         }
750
751         /* XXX: HI/VI */
752
753         d += "_" + resolution_to_string (_resolution);
754
755         if (!dm.studio.empty ()) {
756                 d += "_" + dm.studio;
757         }
758
759         if (if_created_now) {
760                 d += "_" + boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
761         } else {
762                 d += "_" + boost::gregorian::to_iso_string (_isdcf_date);
763         }
764
765         if (!dm.facility.empty ()) {
766                 d += "_" + dm.facility;
767         }
768
769         if (_interop) {
770                 d += "_IOP";
771         } else {
772                 d += "_SMPTE";
773         }
774
775         if (three_d ()) {
776                 d += "-3D";
777         }
778
779         bool vf = false;
780         BOOST_FOREACH (shared_ptr<Content> i, content ()) {
781                 shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (i);
782                 if (!dc) {
783                         continue;
784                 }
785
786                 bool any_text = false;
787                 for (int i = 0; i < TEXT_COUNT; ++i) {
788                         if (dc->reference_text(static_cast<TextType>(i))) {
789                                 any_text = true;
790                         }
791                 }
792                 if (dc->reference_video() || dc->reference_audio() || any_text) {
793                         vf = true;
794                 }
795         }
796
797         if (vf) {
798                 d += "_VF";
799         } else {
800                 d += "_OV";
801         }
802
803         return d;
804 }
805
806 /** @return name to give the DCP */
807 string
808 Film::dcp_name (bool if_created_now) const
809 {
810         string unfiltered;
811         if (use_isdcf_name()) {
812                 return careful_string_filter (isdcf_name (if_created_now));
813         }
814
815         return careful_string_filter (name ());
816 }
817
818 void
819 Film::set_directory (boost::filesystem::path d)
820 {
821         _directory = d;
822         _dirty = true;
823 }
824
825 void
826 Film::set_name (string n)
827 {
828         ChangeSignaller<Film> ch (this, NAME);
829         _name = n;
830 }
831
832 void
833 Film::set_use_isdcf_name (bool u)
834 {
835         ChangeSignaller<Film> ch (this, USE_ISDCF_NAME);
836         _use_isdcf_name = u;
837 }
838
839 void
840 Film::set_dcp_content_type (DCPContentType const * t)
841 {
842         ChangeSignaller<Film> ch (this, DCP_CONTENT_TYPE);
843         _dcp_content_type = t;
844 }
845
846 void
847 Film::set_container (Ratio const * c)
848 {
849         ChangeSignaller<Film> ch (this, CONTAINER);
850         _container = c;
851 }
852
853 void
854 Film::set_resolution (Resolution r)
855 {
856         ChangeSignaller<Film> ch (this, RESOLUTION);
857         _resolution = r;
858 }
859
860 void
861 Film::set_j2k_bandwidth (int b)
862 {
863         ChangeSignaller<Film> ch (this, J2K_BANDWIDTH);
864         _j2k_bandwidth = b;
865 }
866
867 void
868 Film::set_isdcf_metadata (ISDCFMetadata m)
869 {
870         ChangeSignaller<Film> ch (this, ISDCF_METADATA);
871         _isdcf_metadata = m;
872 }
873
874 void
875 Film::set_video_frame_rate (int f)
876 {
877         ChangeSignaller<Film> ch (this, VIDEO_FRAME_RATE);
878         _video_frame_rate = f;
879 }
880
881 void
882 Film::set_audio_channels (int c)
883 {
884         ChangeSignaller<Film> ch (this, AUDIO_CHANNELS);
885         _audio_channels = c;
886 }
887
888 void
889 Film::set_three_d (bool t)
890 {
891         ChangeSignaller<Film> ch (this, THREE_D);
892         _three_d = t;
893
894         if (_three_d && _isdcf_metadata.two_d_version_of_three_d) {
895                 ChangeSignaller<Film> ch (this, ISDCF_METADATA);
896                 _isdcf_metadata.two_d_version_of_three_d = false;
897         }
898 }
899
900 void
901 Film::set_interop (bool i)
902 {
903         ChangeSignaller<Film> ch (this, INTEROP);
904         _interop = i;
905 }
906
907 void
908 Film::set_audio_processor (AudioProcessor const * processor)
909 {
910         ChangeSignaller<Film> ch1 (this, AUDIO_PROCESSOR);
911         ChangeSignaller<Film> ch2 (this, AUDIO_CHANNELS);
912         _audio_processor = processor;
913 }
914
915 void
916 Film::set_reel_type (ReelType t)
917 {
918         ChangeSignaller<Film> ch (this, REEL_TYPE);
919         _reel_type = t;
920 }
921
922 /** @param r Desired reel length in bytes */
923 void
924 Film::set_reel_length (int64_t r)
925 {
926         ChangeSignaller<Film> ch (this, REEL_LENGTH);
927         _reel_length = r;
928 }
929
930 void
931 Film::set_upload_after_make_dcp (bool u)
932 {
933         ChangeSignaller<Film> ch (this, UPLOAD_AFTER_MAKE_DCP);
934         _upload_after_make_dcp = u;
935 }
936
937 void
938 Film::signal_change (ChangeType type, int p)
939 {
940         signal_change (type, static_cast<Property>(p));
941 }
942
943 void
944 Film::signal_change (ChangeType type, Property p)
945 {
946         if (type == CHANGE_TYPE_DONE) {
947                 _dirty = true;
948
949                 switch (p) {
950                 case Film::CONTENT:
951                         set_video_frame_rate (_playlist->best_video_frame_rate ());
952                         break;
953                 case Film::VIDEO_FRAME_RATE:
954                 case Film::SEQUENCE:
955                         _playlist->maybe_sequence ();
956                         break;
957                 default:
958                         break;
959                 }
960
961                 emit (boost::bind (boost::ref (Change), type, p));
962         } else {
963                 Change (type, p);
964         }
965 }
966
967 void
968 Film::set_isdcf_date_today ()
969 {
970         _isdcf_date = boost::gregorian::day_clock::local_day ();
971 }
972
973 boost::filesystem::path
974 Film::j2c_path (int reel, Frame frame, Eyes eyes, bool tmp) const
975 {
976         boost::filesystem::path p;
977         p /= "j2c";
978         p /= video_identifier ();
979
980         char buffer[256];
981         snprintf(buffer, sizeof(buffer), "%08d_%08" PRId64, reel, frame);
982         string s (buffer);
983
984         if (eyes == EYES_LEFT) {
985                 s += ".L";
986         } else if (eyes == EYES_RIGHT) {
987                 s += ".R";
988         }
989
990         s += ".j2c";
991
992         if (tmp) {
993                 s += ".tmp";
994         }
995
996         p /= s;
997         return file (p);
998 }
999
1000 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs */
1001 vector<CPLSummary>
1002 Film::cpls () const
1003 {
1004         if (!directory ()) {
1005                 return vector<CPLSummary> ();
1006         }
1007
1008         vector<CPLSummary> out;
1009
1010         boost::filesystem::path const dir = directory().get();
1011         for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator(dir); i != boost::filesystem::directory_iterator(); ++i) {
1012                 if (
1013                         boost::filesystem::is_directory (*i) &&
1014                         i->path().leaf() != "j2c" && i->path().leaf() != "video" && i->path().leaf() != "info" && i->path().leaf() != "analysis"
1015                         ) {
1016
1017                         try {
1018                                 dcp::DCP dcp (*i);
1019                                 dcp.read ();
1020                                 DCPOMATIC_ASSERT (dcp.cpls().front()->file());
1021                                 out.push_back (
1022                                         CPLSummary (
1023                                                 i->path().leaf().string(),
1024                                                 dcp.cpls().front()->id(),
1025                                                 dcp.cpls().front()->annotation_text(),
1026                                                 dcp.cpls().front()->file().get()
1027                                                 )
1028                                         );
1029                         } catch (...) {
1030
1031                         }
1032                 }
1033         }
1034
1035         return out;
1036 }
1037
1038 void
1039 Film::set_signed (bool s)
1040 {
1041         ChangeSignaller<Film> ch (this, SIGNED);
1042         _signed = s;
1043 }
1044
1045 void
1046 Film::set_encrypted (bool e)
1047 {
1048         ChangeSignaller<Film> ch (this, ENCRYPTED);
1049         _encrypted = e;
1050 }
1051
1052 void
1053 Film::set_key (dcp::Key key)
1054 {
1055         ChangeSignaller<Film> ch (this, KEY);
1056         _key = key;
1057 }
1058
1059 ContentList
1060 Film::content () const
1061 {
1062         return _playlist->content ();
1063 }
1064
1065 /** @param content Content to add.
1066  *  @param disable_audio_analysis true to never do automatic audio analysis, even if it is enabled in configuration.
1067  */
1068 void
1069 Film::examine_and_add_content (shared_ptr<Content> content, bool disable_audio_analysis)
1070 {
1071         if (dynamic_pointer_cast<FFmpegContent> (content) && _directory) {
1072                 run_ffprobe (content->path(0), file ("ffprobe.log"), _log);
1073         }
1074
1075         shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), content));
1076
1077         _job_connections.push_back (
1078                 j->Finished.connect (bind (&Film::maybe_add_content, this, weak_ptr<Job>(j), weak_ptr<Content>(content), disable_audio_analysis))
1079                 );
1080
1081         JobManager::instance()->add (j);
1082 }
1083
1084 void
1085 Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c, bool disable_audio_analysis)
1086 {
1087         shared_ptr<Job> job = j.lock ();
1088         if (!job || !job->finished_ok ()) {
1089                 return;
1090         }
1091
1092         shared_ptr<Content> content = c.lock ();
1093         if (!content) {
1094                 return;
1095         }
1096
1097         add_content (content);
1098
1099         if (Config::instance()->automatic_audio_analysis() && content->audio && !disable_audio_analysis) {
1100                 shared_ptr<Playlist> playlist (new Playlist);
1101                 playlist->add (content);
1102                 boost::signals2::connection c;
1103                 JobManager::instance()->analyse_audio (
1104                         shared_from_this(), playlist, false, c, bind (&Film::audio_analysis_finished, this)
1105                         );
1106                 _audio_analysis_connections.push_back (c);
1107         }
1108 }
1109
1110 void
1111 Film::add_content (shared_ptr<Content> c)
1112 {
1113         /* Add {video,subtitle} content after any existing {video,subtitle} content */
1114         if (c->video) {
1115                 c->set_position (_playlist->video_end());
1116         } else if (!c->text.empty()) {
1117                 c->set_position (_playlist->text_end());
1118         }
1119
1120         if (_template_film) {
1121                 /* Take settings from the first piece of content of c's type in _template */
1122                 BOOST_FOREACH (shared_ptr<Content> i, _template_film->content()) {
1123                         c->take_settings_from (i);
1124                 }
1125         }
1126
1127         _playlist->add (c);
1128 }
1129
1130 void
1131 Film::remove_content (shared_ptr<Content> c)
1132 {
1133         _playlist->remove (c);
1134 }
1135
1136 void
1137 Film::move_content_earlier (shared_ptr<Content> c)
1138 {
1139         _playlist->move_earlier (c);
1140 }
1141
1142 void
1143 Film::move_content_later (shared_ptr<Content> c)
1144 {
1145         _playlist->move_later (c);
1146 }
1147
1148 /** @return length of the film from time 0 to the last thing on the playlist */
1149 DCPTime
1150 Film::length () const
1151 {
1152         return _playlist->length().ceil(video_frame_rate());
1153 }
1154
1155 int
1156 Film::best_video_frame_rate () const
1157 {
1158         return _playlist->best_video_frame_rate ();
1159 }
1160
1161 FrameRateChange
1162 Film::active_frame_rate_change (DCPTime t) const
1163 {
1164         return _playlist->active_frame_rate_change (t, video_frame_rate ());
1165 }
1166
1167 void
1168 Film::playlist_content_change (ChangeType type, weak_ptr<Content> c, int p, bool frequent)
1169 {
1170         if (p == ContentProperty::VIDEO_FRAME_RATE) {
1171                 signal_change (type, Film::CONTENT);
1172         } else if (p == AudioContentProperty::STREAMS) {
1173                 signal_change (type, Film::NAME);
1174         }
1175
1176         if (type == CHANGE_TYPE_DONE) {
1177                 emit (boost::bind (boost::ref (ContentChange), type, c, p, frequent));
1178         } else {
1179                 ContentChange (type, c, p, frequent);
1180         }
1181 }
1182
1183 void
1184 Film::playlist_change (ChangeType type)
1185 {
1186         signal_change (type, CONTENT);
1187         signal_change (type, NAME);
1188 }
1189
1190 void
1191 Film::playlist_order_changed ()
1192 {
1193         /* XXX: missing PENDING */
1194         signal_change (CHANGE_TYPE_DONE, CONTENT_ORDER);
1195 }
1196
1197 int
1198 Film::audio_frame_rate () const
1199 {
1200         BOOST_FOREACH (shared_ptr<Content> i, content ()) {
1201                 if (i->audio && i->audio->has_rate_above_48k ()) {
1202                         return 96000;
1203                 }
1204         }
1205
1206         return 48000;
1207 }
1208
1209 void
1210 Film::set_sequence (bool s)
1211 {
1212         if (s == _sequence) {
1213                 return;
1214         }
1215
1216         ChangeSignaller<Film> cc (this, SEQUENCE);
1217         _sequence = s;
1218         _playlist->set_sequence (s);
1219 }
1220
1221 /** @return Size of the largest possible image in whatever resolution we are using */
1222 dcp::Size
1223 Film::full_frame () const
1224 {
1225         switch (_resolution) {
1226         case RESOLUTION_2K:
1227                 return dcp::Size (2048, 1080);
1228         case RESOLUTION_4K:
1229                 return dcp::Size (4096, 2160);
1230         }
1231
1232         DCPOMATIC_ASSERT (false);
1233         return dcp::Size ();
1234 }
1235
1236 /** @return Size of the frame */
1237 dcp::Size
1238 Film::frame_size () const
1239 {
1240         return fit_ratio_within (container()->ratio(), full_frame ());
1241 }
1242
1243 /** @param recipient KDM recipient certificate.
1244  *  @param trusted_devices Certificates of other trusted devices (can be empty).
1245  *  @param cpl_file CPL filename.
1246  *  @param from KDM from time expressed as a local time with an offset from UTC.
1247  *  @param until KDM to time expressed as a local time with an offset from UTC.
1248  *  @param formulation KDM formulation to use.
1249  *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
1250  *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
1251  *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
1252  */
1253 dcp::EncryptedKDM
1254 Film::make_kdm (
1255         dcp::Certificate recipient,
1256         vector<dcp::Certificate> trusted_devices,
1257         boost::filesystem::path cpl_file,
1258         dcp::LocalTime from,
1259         dcp::LocalTime until,
1260         dcp::Formulation formulation,
1261         bool disable_forensic_marking_picture,
1262         optional<int> disable_forensic_marking_audio
1263         ) const
1264 {
1265         if (!_encrypted) {
1266                 throw runtime_error (_("Cannot make a KDM as this project is not encrypted."));
1267         }
1268
1269         shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
1270         shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
1271         if (!signer->valid ()) {
1272                 throw InvalidSignerError ();
1273         }
1274
1275         /* Find keys that have been added to imported, encrypted DCP content */
1276         list<dcp::DecryptedKDMKey> imported_keys;
1277         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1278                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent> (i);
1279                 if (d && d->kdm()) {
1280                         dcp::DecryptedKDM kdm (d->kdm().get(), Config::instance()->decryption_chain()->key().get());
1281                         list<dcp::DecryptedKDMKey> keys = kdm.keys ();
1282                         copy (keys.begin(), keys.end(), back_inserter (imported_keys));
1283                 }
1284         }
1285
1286         map<shared_ptr<const dcp::ReelMXF>, dcp::Key> keys;
1287
1288         BOOST_FOREACH(shared_ptr<const dcp::ReelAsset> i, cpl->reel_assets ()) {
1289                 shared_ptr<const dcp::ReelMXF> mxf = boost::dynamic_pointer_cast<const dcp::ReelMXF> (i);
1290                 if (!mxf || !mxf->key_id()) {
1291                         continue;
1292                 }
1293
1294                 /* Get any imported key for this ID */
1295                 bool done = false;
1296                 BOOST_FOREACH (dcp::DecryptedKDMKey j, imported_keys) {
1297                         if (j.id() == mxf->key_id().get()) {
1298                                 LOG_GENERAL ("Using imported key for %1", mxf->key_id().get());
1299                                 keys[mxf] = j.key();
1300                                 done = true;
1301                         }
1302                 }
1303
1304                 if (!done) {
1305                         /* No imported key; it must be an asset that we encrypted */
1306                         LOG_GENERAL ("Using our own key for %1", mxf->key_id().get());
1307                         keys[mxf] = key();
1308                 }
1309         }
1310
1311         return dcp::DecryptedKDM (
1312                 cpl->id(), keys, from, until, cpl->content_title_text(), cpl->content_title_text(), dcp::LocalTime().as_string()
1313                 ).encrypt (signer, recipient, trusted_devices, formulation, disable_forensic_marking_picture, disable_forensic_marking_audio);
1314 }
1315
1316 /** @param screens Screens to make KDMs for.
1317  *  @param cpl_file Path to CPL to make KDMs for.
1318  *  @param from KDM from time expressed as a local time in the time zone of the Screen's Cinema.
1319  *  @param until KDM to time expressed as a local time in the time zone of the Screen's Cinema.
1320  *  @param formulation KDM formulation to use.
1321  *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
1322  *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
1323  *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
1324  */
1325 list<ScreenKDM>
1326 Film::make_kdms (
1327         list<shared_ptr<Screen> > screens,
1328         boost::filesystem::path cpl_file,
1329         boost::posix_time::ptime from,
1330         boost::posix_time::ptime until,
1331         dcp::Formulation formulation,
1332         bool disable_forensic_marking_picture,
1333         optional<int> disable_forensic_marking_audio
1334         ) const
1335 {
1336         list<ScreenKDM> kdms;
1337
1338         BOOST_FOREACH (shared_ptr<Screen> i, screens) {
1339                 if (i->recipient) {
1340                         dcp::EncryptedKDM const kdm = make_kdm (
1341                                 i->recipient.get(),
1342                                 i->trusted_devices,
1343                                 cpl_file,
1344                                 dcp::LocalTime (from, i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute()),
1345                                 dcp::LocalTime (until, i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute()),
1346                                 formulation,
1347                                 disable_forensic_marking_picture,
1348                                 disable_forensic_marking_audio
1349                                 );
1350
1351                         kdms.push_back (ScreenKDM (i, kdm));
1352                 }
1353         }
1354
1355         return kdms;
1356 }
1357
1358 /** @return The approximate disk space required to encode a DCP of this film with the
1359  *  current settings, in bytes.
1360  */
1361 uint64_t
1362 Film::required_disk_space () const
1363 {
1364         return _playlist->required_disk_space (j2k_bandwidth(), audio_channels(), audio_frame_rate());
1365 }
1366
1367 /** This method checks the disk that the Film is on and tries to decide whether or not
1368  *  there will be enough space to make a DCP for it.  If so, true is returned; if not,
1369  *  false is returned and required and available are filled in with the amount of disk space
1370  *  required and available respectively (in Gb).
1371  *
1372  *  Note: the decision made by this method isn't, of course, 100% reliable.
1373  */
1374 bool
1375 Film::should_be_enough_disk_space (double& required, double& available, bool& can_hard_link) const
1376 {
1377         /* Create a test file and see if we can hard-link it */
1378         boost::filesystem::path test = internal_video_asset_dir() / "test";
1379         boost::filesystem::path test2 = internal_video_asset_dir() / "test2";
1380         can_hard_link = true;
1381         FILE* f = fopen_boost (test, "w");
1382         if (f) {
1383                 fclose (f);
1384                 boost::system::error_code ec;
1385                 boost::filesystem::create_hard_link (test, test2, ec);
1386                 if (ec) {
1387                         can_hard_link = false;
1388                 }
1389                 boost::filesystem::remove (test);
1390                 boost::filesystem::remove (test2);
1391         }
1392
1393         boost::filesystem::space_info s = boost::filesystem::space (internal_video_asset_dir ());
1394         required = double (required_disk_space ()) / 1073741824.0f;
1395         if (!can_hard_link) {
1396                 required *= 2;
1397         }
1398         available = double (s.available) / 1073741824.0f;
1399         return (available - required) > 1;
1400 }
1401
1402 string
1403 Film::subtitle_language () const
1404 {
1405         set<string> languages;
1406
1407         BOOST_FOREACH (shared_ptr<Content> i, content()) {
1408                 BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
1409                         languages.insert (j->language ());
1410                 }
1411         }
1412
1413         string all;
1414         BOOST_FOREACH (string s, languages) {
1415                 if (!all.empty ()) {
1416                         all += "/" + s;
1417                 } else {
1418                         all += s;
1419                 }
1420         }
1421
1422         return all;
1423 }
1424
1425 /** Change the gains of the supplied AudioMapping to make it a default
1426  *  for this film.  The defaults are guessed based on what processor (if any)
1427  *  is in use, the number of input channels and any filename supplied.
1428  */
1429 void
1430 Film::make_audio_mapping_default (AudioMapping& mapping, optional<boost::filesystem::path> filename) const
1431 {
1432         static string const regex[] = {
1433                 ".*[\\._-]L[\\._-].*",
1434                 ".*[\\._-]R[\\._-].*",
1435                 ".*[\\._-]C[\\._-].*",
1436                 ".*[\\._-]Lfe[\\._-].*",
1437                 ".*[\\._-]Ls[\\._-].*",
1438                 ".*[\\._-]Rs[\\._-].*"
1439         };
1440
1441         static int const regexes = sizeof(regex) / sizeof(*regex);
1442
1443         if (audio_processor ()) {
1444                 audio_processor()->make_audio_mapping_default (mapping);
1445         } else {
1446                 mapping.make_zero ();
1447                 if (mapping.input_channels() == 1) {
1448                         bool guessed = false;
1449
1450                         /* See if we can guess where this stream should go */
1451                         if (filename) {
1452                                 for (int i = 0; i < regexes; ++i) {
1453                                         boost::regex e (regex[i], boost::regex::icase);
1454                                         if (boost::regex_match (filename->string(), e) && i < mapping.output_channels()) {
1455                                                 mapping.set (0, i, 1);
1456                                                 guessed = true;
1457                                         }
1458                                 }
1459                         }
1460
1461                         if (!guessed) {
1462                                 /* If we have no idea, just put it on centre */
1463                                 mapping.set (0, static_cast<int> (dcp::CENTRE), 1);
1464                         }
1465                 } else {
1466                         /* 1:1 mapping */
1467                         for (int i = 0; i < min (mapping.input_channels(), mapping.output_channels()); ++i) {
1468                                 mapping.set (i, i, 1);
1469                         }
1470                 }
1471         }
1472 }
1473
1474 /** @return The names of the channels that audio contents' outputs are passed into;
1475  *  this is either the DCP or a AudioProcessor.
1476  */
1477 vector<string>
1478 Film::audio_output_names () const
1479 {
1480         if (audio_processor ()) {
1481                 return audio_processor()->input_names ();
1482         }
1483
1484         DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
1485
1486         vector<string> n;
1487
1488         for (int i = 0; i < audio_channels(); ++i) {
1489                 n.push_back (short_audio_channel_name (i));
1490         }
1491
1492         return n;
1493 }
1494
1495 void
1496 Film::repeat_content (ContentList c, int n)
1497 {
1498         _playlist->repeat (c, n);
1499 }
1500
1501 void
1502 Film::remove_content (ContentList c)
1503 {
1504         _playlist->remove (c);
1505 }
1506
1507 void
1508 Film::audio_analysis_finished ()
1509 {
1510         /* XXX */
1511 }
1512
1513 list<DCPTimePeriod>
1514 Film::reels () const
1515 {
1516         list<DCPTimePeriod> p;
1517         DCPTime const len = length();
1518
1519         switch (reel_type ()) {
1520         case REELTYPE_SINGLE:
1521                 p.push_back (DCPTimePeriod (DCPTime (), len));
1522                 break;
1523         case REELTYPE_BY_VIDEO_CONTENT:
1524         {
1525                 optional<DCPTime> last_split;
1526                 shared_ptr<Content> last_video;
1527                 BOOST_FOREACH (shared_ptr<Content> c, content ()) {
1528                         if (c->video) {
1529                                 BOOST_FOREACH (DCPTime t, c->reel_split_points()) {
1530                                         if (last_split) {
1531                                                 p.push_back (DCPTimePeriod (last_split.get(), t));
1532                                         }
1533                                         last_split = t;
1534                                 }
1535                                 last_video = c;
1536                         }
1537                 }
1538
1539                 DCPTime video_end = last_video ? last_video->end() : DCPTime(0);
1540                 if (last_split) {
1541                         /* Definitely go from the last split to the end of the video content */
1542                         p.push_back (DCPTimePeriod (last_split.get(), video_end));
1543                 }
1544
1545                 if (video_end < len) {
1546                         /* And maybe go after that as well if there is any non-video hanging over the end */
1547                         p.push_back (DCPTimePeriod (video_end, len));
1548                 }
1549                 break;
1550         }
1551         case REELTYPE_BY_LENGTH:
1552         {
1553                 DCPTime current;
1554                 /* Integer-divide reel length by the size of one frame to give the number of frames per reel */
1555                 Frame const reel_in_frames = _reel_length / ((j2k_bandwidth() / video_frame_rate()) / 8);
1556                 while (current < len) {
1557                         DCPTime end = min (len, current + DCPTime::from_frames (reel_in_frames, video_frame_rate ()));
1558                         p.push_back (DCPTimePeriod (current, end));
1559                         current = end;
1560                 }
1561                 break;
1562         }
1563         }
1564
1565         return p;
1566 }
1567
1568 /** @param period A period within the DCP
1569  *  @return Name of the content which most contributes to the given period.
1570  */
1571 string
1572 Film::content_summary (DCPTimePeriod period) const
1573 {
1574         return _playlist->content_summary (period);
1575 }
1576
1577 void
1578 Film::use_template (string name)
1579 {
1580         _template_film.reset (new Film (optional<boost::filesystem::path>()));
1581         _template_film->read_metadata (Config::instance()->template_path (name));
1582         _use_isdcf_name = _template_film->_use_isdcf_name;
1583         _dcp_content_type = _template_film->_dcp_content_type;
1584         _container = _template_film->_container;
1585         _resolution = _template_film->_resolution;
1586         _j2k_bandwidth = _template_film->_j2k_bandwidth;
1587         _video_frame_rate = _template_film->_video_frame_rate;
1588         _signed = _template_film->_signed;
1589         _encrypted = _template_film->_encrypted;
1590         _audio_channels = _template_film->_audio_channels;
1591         _sequence = _template_film->_sequence;
1592         _three_d = _template_film->_three_d;
1593         _interop = _template_film->_interop;
1594         _audio_processor = _template_film->_audio_processor;
1595         _reel_type = _template_film->_reel_type;
1596         _reel_length = _template_film->_reel_length;
1597         _upload_after_make_dcp = _template_film->_upload_after_make_dcp;
1598         _isdcf_metadata = _template_film->_isdcf_metadata;
1599 }
1600
1601 pair<double, double>
1602 Film::speed_up_range (int dcp_frame_rate) const
1603 {
1604         return _playlist->speed_up_range (dcp_frame_rate);
1605 }
1606
1607 void
1608 Film::copy_from (shared_ptr<const Film> film)
1609 {
1610         read_metadata (film->file (metadata_file));
1611 }
1612
1613 bool
1614 Film::references_dcp_video () const
1615 {
1616         BOOST_FOREACH (shared_ptr<Content> i, _playlist->content()) {
1617                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
1618                 if (d && d->reference_video()) {
1619                         return true;
1620                 }
1621         }
1622
1623         return false;
1624 }
1625
1626 bool
1627 Film::references_dcp_audio () const
1628 {
1629         BOOST_FOREACH (shared_ptr<Content> i, _playlist->content()) {
1630                 shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
1631                 if (d && d->reference_audio()) {
1632                         return true;
1633                 }
1634         }
1635
1636         return false;
1637 }