src/lib/ffmpeg_content.cc

   1 /*
   2     Copyright (C) 2013-2019 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "ffmpeg_content.h"
  22 #include "video_content.h"
  23 #include "audio_content.h"
  24 #include "ffmpeg_examiner.h"
  25 #include "ffmpeg_subtitle_stream.h"
  26 #include "ffmpeg_audio_stream.h"
  27 #include "compose.hpp"
  28 #include "job.h"
  29 #include "util.h"
  30 #include "filter.h"
  31 #include "film.h"
  32 #include "log.h"
  33 #include "config.h"
  34 #include "exceptions.h"
  35 #include "frame_rate_change.h"
  36 #include "text_content.h"
  37 #include "decrypted_ecinema_kdm.h"
  38 #include <dcp/raw_convert.h>
  39 #include <libcxml/cxml.h>
  40 extern "C" {
  41 #include <libavformat/avformat.h>
  42 #include <libavutil/pixdesc.h>
  43 }
  44 #include <libxml++/libxml++.h>
  45 #include <boost/foreach.hpp>
  46 #include <iostream>
  47
  48 #include "i18n.h"
  49
  50 using std::string;
  51 using std::vector;
  52 using std::list;
  53 using std::cout;
  54 using std::pair;
  55 using std::make_pair;
  56 using std::max;
  57 using boost::shared_ptr;
  58 using boost::dynamic_pointer_cast;
  59 using boost::optional;
  60 using dcp::raw_convert;
  61 using namespace dcpomatic;
  62
  63 int const FFmpegContentProperty::SUBTITLE_STREAMS = 100;
  64 int const FFmpegContentProperty::SUBTITLE_STREAM = 101;
  65 int const FFmpegContentProperty::FILTERS = 102;
  66 int const FFmpegContentProperty::KDM = 103;
  67
  68 FFmpegContent::FFmpegContent (boost::filesystem::path p)
  69         : Content (p)
  70 #ifdef DCPOMATIC_VARIANT_SWAROOP
  71         , _encrypted (false)
  72 #endif
  73 {
  74
  75 }
  76
  77 template <class T>
  78 optional<T>
  79 get_optional_enum (cxml::ConstNodePtr node, string name)
  80 {
  81         optional<int> const v = node->optional_number_child<int>(name);
  82         if (!v) {
  83                 return optional<T>();
  84         }
  85         return static_cast<T>(*v);
  86 }
  87
  88 FFmpegContent::FFmpegContent (cxml::ConstNodePtr node, int version, list<string>& notes)
  89         : Content (node)
  90 {
  91         video = VideoContent::from_xml (this, node, version);
  92         audio = AudioContent::from_xml (this, node, version);
  93         text = TextContent::from_xml (this, node, version);
  94
  95         list<cxml::NodePtr> c = node->node_children ("SubtitleStream");
  96         for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
  97                 _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (*i, version)));
  98                 if ((*i)->optional_number_child<int> ("Selected")) {
  99                         _subtitle_stream = _subtitle_streams.back ();
 100                 }
 101         }
 102
 103         c = node->node_children ("AudioStream");
 104         for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
 105                 shared_ptr<FFmpegAudioStream> as (new FFmpegAudioStream (*i, version));
 106                 audio->add_stream (as);
 107                 if (version < 11 && !(*i)->optional_node_child ("Selected")) {
 108                         /* This is an old file and this stream is not selected, so un-map it */
 109                         as->set_mapping (AudioMapping (as->channels (), MAX_DCP_AUDIO_CHANNELS));
 110                 }
 111         }
 112
 113         c = node->node_children ("Filter");
 114         for (list<cxml::NodePtr>::iterator i = c.begin(); i != c.end(); ++i) {
 115                 Filter const * f = Filter::from_id ((*i)->content ());
 116                 if (f) {
 117                         _filters.push_back (f);
 118                 } else {
 119                         notes.push_back (String::compose (_("DCP-o-matic no longer supports the `%1' filter, so it has been turned off."), (*i)->content()));
 120                 }
 121         }
 122
 123         optional<ContentTime::Type> const f = node->optional_number_child<ContentTime::Type> ("FirstVideo");
 124         if (f) {
 125                 _first_video = ContentTime (f.get ());
 126         }
 127
 128         _color_range = get_optional_enum<AVColorRange>(node, "ColorRange");
 129         _color_primaries = get_optional_enum<AVColorPrimaries>(node, "ColorPrimaries");
 130         _color_trc = get_optional_enum<AVColorTransferCharacteristic>(node, "ColorTransferCharacteristic");
 131         _colorspace = get_optional_enum<AVColorSpace>(node, "Colorspace");
 132         _bits_per_pixel = node->optional_number_child<int> ("BitsPerPixel");
 133 #ifdef DCPOMATIC_VARIANT_SWAROOP
 134         _encrypted = node->optional_bool_child("Encrypted").get_value_or(false);
 135 #endif
 136 }
 137
 138 FFmpegContent::FFmpegContent (vector<shared_ptr<Content> > c)
 139         : Content (c)
 140 {
 141         vector<shared_ptr<Content> >::const_iterator i = c.begin ();
 142
 143         bool need_video = false;
 144         bool need_audio = false;
 145         bool need_text = false;
 146
 147         if (i != c.end ()) {
 148                 need_video = static_cast<bool> ((*i)->video);
 149                 need_audio = static_cast<bool> ((*i)->audio);
 150                 need_text = !(*i)->text.empty();
 151         }
 152
 153         while (i != c.end ()) {
 154                 if (need_video != static_cast<bool> ((*i)->video)) {
 155                         throw JoinError (_("Content to be joined must all have or not have video"));
 156                 }
 157                 if (need_audio != static_cast<bool> ((*i)->audio)) {
 158                         throw JoinError (_("Content to be joined must all have or not have audio"));
 159                 }
 160                 if (need_text != !(*i)->text.empty()) {
 161                         throw JoinError (_("Content to be joined must all have or not have subtitles or captions"));
 162                 }
 163                 ++i;
 164         }
 165
 166         if (need_video) {
 167                 video.reset (new VideoContent (this, c));
 168         }
 169         if (need_audio) {
 170                 audio.reset (new AudioContent (this, c));
 171         }
 172         if (need_text) {
 173                 text.push_back (shared_ptr<TextContent> (new TextContent (this, c)));
 174         }
 175
 176         shared_ptr<FFmpegContent> ref = dynamic_pointer_cast<FFmpegContent> (c[0]);
 177         DCPOMATIC_ASSERT (ref);
 178
 179         for (size_t i = 0; i < c.size(); ++i) {
 180                 shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c[i]);
 181                 if (fc->only_text() && fc->only_text()->use() && *(fc->_subtitle_stream.get()) != *(ref->_subtitle_stream.get())) {
 182                         throw JoinError (_("Content to be joined must use the same subtitle stream."));
 183                 }
 184         }
 185
 186         /* XXX: should probably check that more of the stuff below is the same in *this and ref */
 187
 188         _subtitle_streams = ref->subtitle_streams ();
 189         _subtitle_stream = ref->subtitle_stream ();
 190         _first_video = ref->_first_video;
 191         _filters = ref->_filters;
 192         _color_range = ref->_color_range;
 193         _color_primaries = ref->_color_primaries;
 194         _color_trc = ref->_color_trc;
 195         _colorspace = ref->_colorspace;
 196         _bits_per_pixel = ref->_bits_per_pixel;
 197 #ifdef DCPOMATIC_VARIANT_SWAROOP
 198         _encrypted = ref->_encrypted;
 199 #endif
 200 }
 201
 202 void
 203 FFmpegContent::as_xml (xmlpp::Node* node, bool with_paths) const
 204 {
 205         node->add_child("Type")->add_child_text ("FFmpeg");
 206         Content::as_xml (node, with_paths);
 207
 208         if (video) {
 209                 video->as_xml (node);
 210         }
 211
 212         if (audio) {
 213                 audio->as_xml (node);
 214
 215                 BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
 216                         shared_ptr<FFmpegAudioStream> f = dynamic_pointer_cast<FFmpegAudioStream> (i);
 217                         DCPOMATIC_ASSERT (f);
 218                         f->as_xml (node->add_child("AudioStream"));
 219                 }
 220         }
 221
 222         if (only_text()) {
 223                 only_text()->as_xml (node);
 224         }
 225
 226         boost::mutex::scoped_lock lm (_mutex);
 227
 228         for (vector<shared_ptr<FFmpegSubtitleStream> >::const_iterator i = _subtitle_streams.begin(); i != _subtitle_streams.end(); ++i) {
 229                 xmlpp::Node* t = node->add_child("SubtitleStream");
 230                 if (_subtitle_stream && *i == _subtitle_stream) {
 231                         t->add_child("Selected")->add_child_text("1");
 232                 }
 233                 (*i)->as_xml (t);
 234         }
 235
 236         for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
 237                 node->add_child("Filter")->add_child_text ((*i)->id ());
 238         }
 239
 240         if (_first_video) {
 241                 node->add_child("FirstVideo")->add_child_text (raw_convert<string> (_first_video.get().get()));
 242         }
 243
 244         if (_color_range) {
 245                 node->add_child("ColorRange")->add_child_text (raw_convert<string> (static_cast<int> (*_color_range)));
 246         }
 247         if (_color_primaries) {
 248                 node->add_child("ColorPrimaries")->add_child_text (raw_convert<string> (static_cast<int> (*_color_primaries)));
 249         }
 250         if (_color_trc) {
 251                 node->add_child("ColorTransferCharacteristic")->add_child_text (raw_convert<string> (static_cast<int> (*_color_trc)));
 252         }
 253         if (_colorspace) {
 254                 node->add_child("Colorspace")->add_child_text (raw_convert<string> (static_cast<int> (*_colorspace)));
 255         }
 256         if (_bits_per_pixel) {
 257                 node->add_child("BitsPerPixel")->add_child_text (raw_convert<string> (*_bits_per_pixel));
 258         }
 259 #ifdef DCPOMATIC_VARIANT_SWAROOP
 260         if (_encrypted) {
 261                 node->add_child("Encypted")->add_child_text ("1");
 262         }
 263 #endif
 264 }
 265
 266 void
 267 FFmpegContent::examine (shared_ptr<const Film> film, shared_ptr<Job> job)
 268 {
 269         ChangeSignaller<Content> cc1 (this, FFmpegContentProperty::SUBTITLE_STREAMS);
 270         ChangeSignaller<Content> cc2 (this, FFmpegContentProperty::SUBTITLE_STREAM);
 271
 272         if (job) {
 273                 job->set_progress_unknown ();
 274         }
 275
 276         Content::examine (film, job);
 277
 278         shared_ptr<FFmpegExaminer> examiner (new FFmpegExaminer (shared_from_this (), job));
 279
 280         if (examiner->has_video ()) {
 281                 video.reset (new VideoContent (this));
 282                 video->take_from_examiner (examiner);
 283         }
 284
 285         boost::filesystem::path first_path = path (0);
 286
 287         {
 288                 boost::mutex::scoped_lock lm (_mutex);
 289
 290                 if (examiner->has_video ()) {
 291                         _first_video = examiner->first_video ();
 292                         _color_range = examiner->color_range ();
 293                         _color_primaries = examiner->color_primaries ();
 294                         _color_trc = examiner->color_trc ();
 295                         _colorspace = examiner->colorspace ();
 296                         _bits_per_pixel = examiner->bits_per_pixel ();
 297
 298                         if (examiner->rotation()) {
 299                                 double rot = *examiner->rotation ();
 300                                 if (fabs (rot - 180) < 1.0) {
 301                                         _filters.push_back (Filter::from_id ("vflip"));
 302                                         _filters.push_back (Filter::from_id ("hflip"));
 303                                 } else if (fabs (rot - 90) < 1.0) {
 304                                         _filters.push_back (Filter::from_id ("90clock"));
 305                                 } else if (fabs (rot - 270) < 1.0) {
 306                                         _filters.push_back (Filter::from_id ("90anticlock"));
 307                                 }
 308                         }
 309                 }
 310
 311                 if (!examiner->audio_streams().empty ()) {
 312                         audio.reset (new AudioContent (this));
 313
 314                         BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, examiner->audio_streams ()) {
 315                                 audio->add_stream (i);
 316                         }
 317
 318                         AudioStreamPtr as = audio->streams().front();
 319                         AudioMapping m = as->mapping ();
 320                         m.make_default (film ? film->audio_processor() : 0, first_path);
 321                         as->set_mapping (m);
 322                 }
 323
 324                 _subtitle_streams = examiner->subtitle_streams ();
 325                 if (!_subtitle_streams.empty ()) {
 326                         text.clear ();
 327                         text.push_back (shared_ptr<TextContent> (new TextContent (this, TEXT_OPEN_SUBTITLE, TEXT_UNKNOWN)));
 328                         _subtitle_stream = _subtitle_streams.front ();
 329                 }
 330
 331 #ifdef DCPOMATIC_VARIANT_SWAROOP
 332                 _encrypted = first_path.extension() == ".ecinema";
 333 #endif
 334         }
 335
 336         if (examiner->has_video ()) {
 337                 set_default_colour_conversion ();
 338         }
 339
 340         if (examiner->has_video() && examiner->pulldown() && video_frame_rate() && fabs(*video_frame_rate() - 29.97) < 0.001) {
 341                 /* FFmpeg has detected this file as 29.97 and the examiner thinks it is using "soft" 2:3 pulldown (telecine).
 342                  * This means we can treat it as a 23.976fps file.
 343                  */
 344                 set_video_frame_rate (24000.0 / 1001);
 345                 video->set_length (video->length() * 24.0 / 30);
 346         }
 347
 348 #ifdef DCPOMATIC_VARIANT_SWAROOP
 349         _id = examiner->id ();
 350 #endif
 351 }
 352
 353 string
 354 FFmpegContent::summary () const
 355 {
 356         if (video && audio) {
 357                 return String::compose (_("%1 [movie]"), path_summary ());
 358         } else if (video) {
 359                 return String::compose (_("%1 [video]"), path_summary ());
 360         } else if (audio) {
 361                 return String::compose (_("%1 [audio]"), path_summary ());
 362         }
 363
 364         return path_summary ();
 365 }
 366
 367 string
 368 FFmpegContent::technical_summary () const
 369 {
 370         string as = "";
 371         BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, ffmpeg_audio_streams ()) {
 372                 as += i->technical_summary () + " " ;
 373         }
 374
 375         if (as.empty ()) {
 376                 as = "none";
 377         }
 378
 379         string ss = "none";
 380         if (_subtitle_stream) {
 381                 ss = _subtitle_stream->technical_summary ();
 382         }
 383
 384         string filt = Filter::ffmpeg_string (_filters);
 385
 386         string s = Content::technical_summary ();
 387
 388         if (video) {
 389                 s += " - " + video->technical_summary ();
 390         }
 391
 392         if (audio) {
 393                 s += " - " + audio->technical_summary ();
 394         }
 395
 396         return s + String::compose (
 397                 "ffmpeg: audio %1 subtitle %2 filters %3", as, ss, filt
 398                 );
 399 }
 400
 401 void
 402 FFmpegContent::set_subtitle_stream (shared_ptr<FFmpegSubtitleStream> s)
 403 {
 404         ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
 405
 406         {
 407                 boost::mutex::scoped_lock lm (_mutex);
 408                 _subtitle_stream = s;
 409         }
 410 }
 411
 412 bool
 413 operator== (FFmpegStream const & a, FFmpegStream const & b)
 414 {
 415         return a._id == b._id;
 416 }
 417
 418 bool
 419 operator!= (FFmpegStream const & a, FFmpegStream const & b)
 420 {
 421         return a._id != b._id;
 422 }
 423
 424 DCPTime
 425 FFmpegContent::full_length (shared_ptr<const Film> film) const
 426 {
 427         FrameRateChange const frc (film, shared_from_this());
 428         if (video) {
 429                 return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor()), film->video_frame_rate());
 430         }
 431
 432         if (audio) {
 433                 DCPTime longest;
 434                 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
 435                         longest = max (longest, DCPTime::from_frames(llrint(i->length() / frc.speed_up), i->frame_rate()));
 436                 }
 437                 return longest;
 438         }
 439
 440         /* XXX: subtitle content? */
 441
 442         return DCPTime();
 443 }
 444
 445 DCPTime
 446 FFmpegContent::approximate_length () const
 447 {
 448         if (video) {
 449                 return DCPTime::from_frames (video->length_after_3d_combine(), 24);
 450         }
 451
 452         DCPOMATIC_ASSERT (audio);
 453
 454         Frame longest = 0;
 455         BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
 456                 longest = max (longest, Frame(llrint(i->length())));
 457         }
 458
 459         return DCPTime::from_frames (longest, 24);
 460 }
 461
 462 void
 463 FFmpegContent::set_filters (vector<Filter const *> const & filters)
 464 {
 465         ChangeSignaller<Content> cc (this, FFmpegContentProperty::FILTERS);
 466
 467         {
 468                 boost::mutex::scoped_lock lm (_mutex);
 469                 _filters = filters;
 470         }
 471 }
 472
 473 string
 474 FFmpegContent::identifier () const
 475 {
 476         string s = Content::identifier();
 477
 478         if (video) {
 479                 s += "_" + video->identifier();
 480         }
 481
 482         if (only_text() && only_text()->use() && only_text()->burn()) {
 483                 s += "_" + only_text()->identifier();
 484         }
 485
 486         boost::mutex::scoped_lock lm (_mutex);
 487
 488         if (_subtitle_stream) {
 489                 s += "_" + _subtitle_stream->identifier ();
 490         }
 491
 492         for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
 493                 s += "_" + (*i)->id ();
 494         }
 495
 496         return s;
 497 }
 498
 499 void
 500 FFmpegContent::set_default_colour_conversion ()
 501 {
 502         DCPOMATIC_ASSERT (video);
 503
 504         dcp::Size const s = video->size ();
 505
 506         boost::mutex::scoped_lock lm (_mutex);
 507
 508         switch (_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)) {
 509         case AVCOL_SPC_RGB:
 510                 video->set_colour_conversion (PresetColourConversion::from_id ("srgb").conversion);
 511                 break;
 512         case AVCOL_SPC_BT709:
 513                 video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
 514                 break;
 515         case AVCOL_SPC_BT470BG:
 516         case AVCOL_SPC_SMPTE170M:
 517         case AVCOL_SPC_SMPTE240M:
 518                 video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
 519                 break;
 520         case AVCOL_SPC_BT2020_CL:
 521         case AVCOL_SPC_BT2020_NCL:
 522                 video->set_colour_conversion (PresetColourConversion::from_id ("rec2020").conversion);
 523                 break;
 524         default:
 525                 if (s.width < 1080) {
 526                         video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
 527                 } else {
 528                         video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
 529                 }
 530                 break;
 531         }
 532 }
 533
 534 void
 535 FFmpegContent::add_properties (shared_ptr<const Film> film, list<UserProperty>& p) const
 536 {
 537         Content::add_properties (film, p);
 538
 539         if (video) {
 540                 video->add_properties (p);
 541
 542                 if (_bits_per_pixel) {
 543                         int const sub = 219 * pow (2, _bits_per_pixel.get() - 8);
 544                         int const total = pow (2, _bits_per_pixel.get());
 545
 546                         switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
 547                         case AVCOL_RANGE_UNSPECIFIED:
 548                                 /// TRANSLATORS: this means that the range of pixel values used in this
 549                                 /// file is unknown (not specified in the file).
 550                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
 551                                 break;
 552                         case AVCOL_RANGE_MPEG:
 553                                 /// TRANSLATORS: this means that the range of pixel values used in this
 554                                 /// file is limited, so that not all possible values are valid.
 555                                 p.push_back (
 556                                         UserProperty (
 557                                                 UserProperty::VIDEO, _("Colour range"), String::compose (_("Limited (%1-%2)"), (total - sub) / 2, (total + sub) / 2)
 558                                                 )
 559                                         );
 560                                 break;
 561                         case AVCOL_RANGE_JPEG:
 562                                 /// TRANSLATORS: this means that the range of pixel values used in this
 563                                 /// file is full, so that all possible pixel values are valid.
 564                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), String::compose (_("Full (0-%1)"), total)));
 565                                 break;
 566                         default:
 567                                 DCPOMATIC_ASSERT (false);
 568                         }
 569                 } else {
 570                         switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
 571                         case AVCOL_RANGE_UNSPECIFIED:
 572                                 /// TRANSLATORS: this means that the range of pixel values used in this
 573                                 /// file is unknown (not specified in the file).
 574                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
 575                                 break;
 576                         case AVCOL_RANGE_MPEG:
 577                                 /// TRANSLATORS: this means that the range of pixel values used in this
 578                                 /// file is limited, so that not all possible values are valid.
 579                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Limited")));
 580                                 break;
 581                         case AVCOL_RANGE_JPEG:
 582                                 /// TRANSLATORS: this means that the range of pixel values used in this
 583                                 /// file is full, so that all possible pixel values are valid.
 584                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Full")));
 585                                 break;
 586                         default:
 587                                 DCPOMATIC_ASSERT (false);
 588                         }
 589                 }
 590
 591                 char const * primaries[] = {
 592                         _("Unspecified"),
 593                         _("BT709"),
 594                         _("Unspecified"),
 595                         _("Unspecified"),
 596                         _("BT470M"),
 597                         _("BT470BG"),
 598                         _("SMPTE 170M (BT601)"),
 599                         _("SMPTE 240M"),
 600                         _("Film"),
 601                         _("BT2020"),
 602                         _("SMPTE ST 428-1 (CIE 1931 XYZ)"),
 603                         _("SMPTE ST 431-2 (2011)"),
 604                         _("SMPTE ST 432-1 D65 (2010)"), // 12
 605                         "", // 13
 606                         "", // 14
 607                         "", // 15
 608                         "", // 16
 609                         "", // 17
 610                         "", // 18
 611                         "", // 19
 612                         "", // 20
 613                         "", // 21
 614                         _("JEDEC P22")
 615                 };
 616
 617                 DCPOMATIC_ASSERT (AVCOL_PRI_NB <= 23);
 618                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour primaries"), primaries[_color_primaries.get_value_or(AVCOL_PRI_UNSPECIFIED)]));
 619
 620                 char const * transfers[] = {
 621                         _("Unspecified"),
 622                         _("BT709"),
 623                         _("Unspecified"),
 624                         _("Unspecified"),
 625                         _("Gamma 22 (BT470M)"),
 626                         _("Gamma 28 (BT470BG)"),
 627                         _("SMPTE 170M (BT601)"),
 628                         _("SMPTE 240M"),
 629                         _("Linear"),
 630                         _("Logarithmic (100:1 range)"),
 631                         _("Logarithmic (316:1 range)"),
 632                         _("IEC61966-2-4"),
 633                         _("BT1361 extended colour gamut"),
 634                         _("IEC61966-2-1 (sRGB or sYCC)"),
 635                         _("BT2020 for a 10-bit system"),
 636                         _("BT2020 for a 12-bit system"),
 637                         _("SMPTE ST 2084 for 10, 12, 14 and 16 bit systems"),
 638                         _("SMPTE ST 428-1"),
 639                         _("ARIB STD-B67 ('Hybrid log-gamma')")
 640                 };
 641
 642                 DCPOMATIC_ASSERT (AVCOL_TRC_NB <= 19);
 643                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour transfer characteristic"), transfers[_color_trc.get_value_or(AVCOL_TRC_UNSPECIFIED)]));
 644
 645                 char const * spaces[] = {
 646                         _("RGB / sRGB (IEC61966-2-1)"),
 647                         _("BT709"),
 648                         _("Unspecified"),
 649                         _("Unspecified"),
 650                         _("FCC"),
 651                         _("BT470BG (BT601-6)"),
 652                         _("SMPTE 170M (BT601-6)"),
 653                         _("SMPTE 240M"),
 654                         _("YCOCG"),
 655                         _("BT2020 non-constant luminance"),
 656                         _("BT2020 constant luminance"),
 657                         _("SMPTE 2085, Y'D'zD'x"),
 658                         _("Chroma-derived non-constant luminance"),
 659                         _("Chroma-derived constant luminance"),
 660                         _("BT2100")
 661                 };
 662
 663                 DCPOMATIC_ASSERT (AVCOL_SPC_NB == 15);
 664                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colourspace"), spaces[_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)]));
 665
 666                 if (_bits_per_pixel) {
 667                         p.push_back (UserProperty (UserProperty::VIDEO, _("Bits per pixel"), *_bits_per_pixel));
 668                 }
 669         }
 670
 671         if (audio) {
 672                 audio->add_properties (film, p);
 673         }
 674 }
 675
 676 /** Our subtitle streams have colour maps, which can be changed, but
 677  *  they have no way of signalling that change.  As a hack, we have this
 678  *  method which callers can use when they've modified one of our subtitle
 679  *  streams.
 680  */
 681 void
 682 FFmpegContent::signal_subtitle_stream_changed ()
 683 {
 684         /* XXX: this is too late; really it should be before the change */
 685         ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
 686 }
 687
 688 vector<shared_ptr<FFmpegAudioStream> >
 689 FFmpegContent::ffmpeg_audio_streams () const
 690 {
 691         vector<shared_ptr<FFmpegAudioStream> > fa;
 692
 693         if (audio) {
 694                 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
 695                         fa.push_back (dynamic_pointer_cast<FFmpegAudioStream> (i));
 696                 }
 697         }
 698
 699         return fa;
 700 }
 701
 702 void
 703 FFmpegContent::take_settings_from (shared_ptr<const Content> c)
 704 {
 705         shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (c);
 706         if (!fc) {
 707                 return;
 708                 }
 709
 710         Content::take_settings_from (c);
 711         _filters = fc->_filters;
 712 }
 713
 714 #ifdef DCPOMATIC_VARIANT_SWAROOP
 715 void
 716 FFmpegContent::add_kdm (EncryptedECinemaKDM kdm)
 717 {
 718         ChangeSignaller<Content> cc (this, FFmpegContentProperty::KDM);
 719         boost::mutex::scoped_lock lm (_mutex);
 720         _kdm = kdm;
 721
 722 }
 723
 724 bool
 725 FFmpegContent::kdm_timing_window_valid () const
 726 {
 727         if (!_kdm) {
 728                 return true;
 729         }
 730
 731         DCPOMATIC_ASSERT (Config::instance()->decryption_chain()->key());
 732
 733         DecryptedECinemaKDM decrypted (*_kdm, *Config::instance()->decryption_chain()->key());
 734
 735         dcp::LocalTime now;
 736         return (!decrypted.not_valid_before() || *decrypted.not_valid_before() < now) &&
 737                 (!decrypted.not_valid_after() || now < *decrypted.not_valid_after());
 738 }
 739
 740 #endif