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 #ifdef DCPOMATIC_VARIANT_SWAROOP
 341         _id = examiner->id ();
 342 #endif
 343 }
 344
 345 string
 346 FFmpegContent::summary () const
 347 {
 348         if (video && audio) {
 349                 return String::compose (_("%1 [movie]"), path_summary ());
 350         } else if (video) {
 351                 return String::compose (_("%1 [video]"), path_summary ());
 352         } else if (audio) {
 353                 return String::compose (_("%1 [audio]"), path_summary ());
 354         }
 355
 356         return path_summary ();
 357 }
 358
 359 string
 360 FFmpegContent::technical_summary () const
 361 {
 362         string as = "";
 363         BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, ffmpeg_audio_streams ()) {
 364                 as += i->technical_summary () + " " ;
 365         }
 366
 367         if (as.empty ()) {
 368                 as = "none";
 369         }
 370
 371         string ss = "none";
 372         if (_subtitle_stream) {
 373                 ss = _subtitle_stream->technical_summary ();
 374         }
 375
 376         string filt = Filter::ffmpeg_string (_filters);
 377
 378         string s = Content::technical_summary ();
 379
 380         if (video) {
 381                 s += " - " + video->technical_summary ();
 382         }
 383
 384         if (audio) {
 385                 s += " - " + audio->technical_summary ();
 386         }
 387
 388         return s + String::compose (
 389                 "ffmpeg: audio %1 subtitle %2 filters %3", as, ss, filt
 390                 );
 391 }
 392
 393 void
 394 FFmpegContent::set_subtitle_stream (shared_ptr<FFmpegSubtitleStream> s)
 395 {
 396         ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
 397
 398         {
 399                 boost::mutex::scoped_lock lm (_mutex);
 400                 _subtitle_stream = s;
 401         }
 402 }
 403
 404 bool
 405 operator== (FFmpegStream const & a, FFmpegStream const & b)
 406 {
 407         return a._id == b._id;
 408 }
 409
 410 bool
 411 operator!= (FFmpegStream const & a, FFmpegStream const & b)
 412 {
 413         return a._id != b._id;
 414 }
 415
 416 DCPTime
 417 FFmpegContent::full_length (shared_ptr<const Film> film) const
 418 {
 419         FrameRateChange const frc (film, shared_from_this());
 420         if (video) {
 421                 return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor()), film->video_frame_rate());
 422         }
 423
 424         if (audio) {
 425                 DCPTime longest;
 426                 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
 427                         longest = max (longest, DCPTime::from_frames(llrint(i->length() / frc.speed_up), i->frame_rate()));
 428                 }
 429                 return longest;
 430         }
 431
 432         /* XXX: subtitle content? */
 433
 434         return DCPTime();
 435 }
 436
 437 DCPTime
 438 FFmpegContent::approximate_length () const
 439 {
 440         if (video) {
 441                 return DCPTime::from_frames (video->length_after_3d_combine(), 24);
 442         }
 443
 444         DCPOMATIC_ASSERT (audio);
 445
 446         Frame longest = 0;
 447         BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
 448                 longest = max (longest, Frame(llrint(i->length())));
 449         }
 450
 451         return DCPTime::from_frames (longest, 24);
 452 }
 453
 454 void
 455 FFmpegContent::set_filters (vector<Filter const *> const & filters)
 456 {
 457         ChangeSignaller<Content> cc (this, FFmpegContentProperty::FILTERS);
 458
 459         {
 460                 boost::mutex::scoped_lock lm (_mutex);
 461                 _filters = filters;
 462         }
 463 }
 464
 465 string
 466 FFmpegContent::identifier () const
 467 {
 468         string s = Content::identifier();
 469
 470         if (video) {
 471                 s += "_" + video->identifier();
 472         }
 473
 474         if (only_text() && only_text()->use() && only_text()->burn()) {
 475                 s += "_" + only_text()->identifier();
 476         }
 477
 478         boost::mutex::scoped_lock lm (_mutex);
 479
 480         if (_subtitle_stream) {
 481                 s += "_" + _subtitle_stream->identifier ();
 482         }
 483
 484         for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
 485                 s += "_" + (*i)->id ();
 486         }
 487
 488         return s;
 489 }
 490
 491 void
 492 FFmpegContent::set_default_colour_conversion ()
 493 {
 494         DCPOMATIC_ASSERT (video);
 495
 496         dcp::Size const s = video->size ();
 497
 498         boost::mutex::scoped_lock lm (_mutex);
 499
 500         switch (_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)) {
 501         case AVCOL_SPC_RGB:
 502                 video->set_colour_conversion (PresetColourConversion::from_id ("srgb").conversion);
 503                 break;
 504         case AVCOL_SPC_BT709:
 505                 video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
 506                 break;
 507         case AVCOL_SPC_BT470BG:
 508         case AVCOL_SPC_SMPTE170M:
 509         case AVCOL_SPC_SMPTE240M:
 510                 video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
 511                 break;
 512         case AVCOL_SPC_BT2020_CL:
 513         case AVCOL_SPC_BT2020_NCL:
 514                 video->set_colour_conversion (PresetColourConversion::from_id ("rec2020").conversion);
 515                 break;
 516         default:
 517                 if (s.width < 1080) {
 518                         video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
 519                 } else {
 520                         video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
 521                 }
 522                 break;
 523         }
 524 }
 525
 526 void
 527 FFmpegContent::add_properties (shared_ptr<const Film> film, list<UserProperty>& p) const
 528 {
 529         Content::add_properties (film, p);
 530
 531         if (video) {
 532                 video->add_properties (p);
 533
 534                 if (_bits_per_pixel) {
 535                         int const sub = 219 * pow (2, _bits_per_pixel.get() - 8);
 536                         int const total = pow (2, _bits_per_pixel.get());
 537
 538                         switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
 539                         case AVCOL_RANGE_UNSPECIFIED:
 540                                 /// TRANSLATORS: this means that the range of pixel values used in this
 541                                 /// file is unknown (not specified in the file).
 542                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
 543                                 break;
 544                         case AVCOL_RANGE_MPEG:
 545                                 /// TRANSLATORS: this means that the range of pixel values used in this
 546                                 /// file is limited, so that not all possible values are valid.
 547                                 p.push_back (
 548                                         UserProperty (
 549                                                 UserProperty::VIDEO, _("Colour range"), String::compose (_("Limited (%1-%2)"), (total - sub) / 2, (total + sub) / 2)
 550                                                 )
 551                                         );
 552                                 break;
 553                         case AVCOL_RANGE_JPEG:
 554                                 /// TRANSLATORS: this means that the range of pixel values used in this
 555                                 /// file is full, so that all possible pixel values are valid.
 556                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), String::compose (_("Full (0-%1)"), total)));
 557                                 break;
 558                         default:
 559                                 DCPOMATIC_ASSERT (false);
 560                         }
 561                 } else {
 562                         switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
 563                         case AVCOL_RANGE_UNSPECIFIED:
 564                                 /// TRANSLATORS: this means that the range of pixel values used in this
 565                                 /// file is unknown (not specified in the file).
 566                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
 567                                 break;
 568                         case AVCOL_RANGE_MPEG:
 569                                 /// TRANSLATORS: this means that the range of pixel values used in this
 570                                 /// file is limited, so that not all possible values are valid.
 571                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Limited")));
 572                                 break;
 573                         case AVCOL_RANGE_JPEG:
 574                                 /// TRANSLATORS: this means that the range of pixel values used in this
 575                                 /// file is full, so that all possible pixel values are valid.
 576                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Full")));
 577                                 break;
 578                         default:
 579                                 DCPOMATIC_ASSERT (false);
 580                         }
 581                 }
 582
 583                 char const * primaries[] = {
 584                         _("Unspecified"),
 585                         _("BT709"),
 586                         _("Unspecified"),
 587                         _("Unspecified"),
 588                         _("BT470M"),
 589                         _("BT470BG"),
 590                         _("SMPTE 170M (BT601)"),
 591                         _("SMPTE 240M"),
 592                         _("Film"),
 593                         _("BT2020"),
 594                         _("SMPTE ST 428-1 (CIE 1931 XYZ)"),
 595                         _("SMPTE ST 431-2 (2011)"),
 596                         _("SMPTE ST 432-1 D65 (2010)"), // 12
 597                         "", // 13
 598                         "", // 14
 599                         "", // 15
 600                         "", // 16
 601                         "", // 17
 602                         "", // 18
 603                         "", // 19
 604                         "", // 20
 605                         "", // 21
 606                         _("JEDEC P22")
 607                 };
 608
 609                 DCPOMATIC_ASSERT (AVCOL_PRI_NB <= 23);
 610                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour primaries"), primaries[_color_primaries.get_value_or(AVCOL_PRI_UNSPECIFIED)]));
 611
 612                 char const * transfers[] = {
 613                         _("Unspecified"),
 614                         _("BT709"),
 615                         _("Unspecified"),
 616                         _("Unspecified"),
 617                         _("Gamma 22 (BT470M)"),
 618                         _("Gamma 28 (BT470BG)"),
 619                         _("SMPTE 170M (BT601)"),
 620                         _("SMPTE 240M"),
 621                         _("Linear"),
 622                         _("Logarithmic (100:1 range)"),
 623                         _("Logarithmic (316:1 range)"),
 624                         _("IEC61966-2-4"),
 625                         _("BT1361 extended colour gamut"),
 626                         _("IEC61966-2-1 (sRGB or sYCC)"),
 627                         _("BT2020 for a 10-bit system"),
 628                         _("BT2020 for a 12-bit system"),
 629                         _("SMPTE ST 2084 for 10, 12, 14 and 16 bit systems"),
 630                         _("SMPTE ST 428-1"),
 631                         _("ARIB STD-B67 ('Hybrid log-gamma')")
 632                 };
 633
 634                 DCPOMATIC_ASSERT (AVCOL_TRC_NB <= 19);
 635                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour transfer characteristic"), transfers[_color_trc.get_value_or(AVCOL_TRC_UNSPECIFIED)]));
 636
 637                 char const * spaces[] = {
 638                         _("RGB / sRGB (IEC61966-2-1)"),
 639                         _("BT709"),
 640                         _("Unspecified"),
 641                         _("Unspecified"),
 642                         _("FCC"),
 643                         _("BT470BG (BT601-6)"),
 644                         _("SMPTE 170M (BT601-6)"),
 645                         _("SMPTE 240M"),
 646                         _("YCOCG"),
 647                         _("BT2020 non-constant luminance"),
 648                         _("BT2020 constant luminance"),
 649                         _("SMPTE 2085, Y'D'zD'x"),
 650                         _("Chroma-derived non-constant luminance"),
 651                         _("Chroma-derived constant luminance"),
 652                         _("BT2100")
 653                 };
 654
 655                 DCPOMATIC_ASSERT (AVCOL_SPC_NB == 15);
 656                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colourspace"), spaces[_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)]));
 657
 658                 if (_bits_per_pixel) {
 659                         p.push_back (UserProperty (UserProperty::VIDEO, _("Bits per pixel"), *_bits_per_pixel));
 660                 }
 661         }
 662
 663         if (audio) {
 664                 audio->add_properties (film, p);
 665         }
 666 }
 667
 668 /** Our subtitle streams have colour maps, which can be changed, but
 669  *  they have no way of signalling that change.  As a hack, we have this
 670  *  method which callers can use when they've modified one of our subtitle
 671  *  streams.
 672  */
 673 void
 674 FFmpegContent::signal_subtitle_stream_changed ()
 675 {
 676         /* XXX: this is too late; really it should be before the change */
 677         ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
 678 }
 679
 680 vector<shared_ptr<FFmpegAudioStream> >
 681 FFmpegContent::ffmpeg_audio_streams () const
 682 {
 683         vector<shared_ptr<FFmpegAudioStream> > fa;
 684
 685         if (audio) {
 686                 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
 687                         fa.push_back (dynamic_pointer_cast<FFmpegAudioStream> (i));
 688                 }
 689         }
 690
 691         return fa;
 692 }
 693
 694 void
 695 FFmpegContent::take_settings_from (shared_ptr<const Content> c)
 696 {
 697         shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (c);
 698         if (!fc) {
 699                 return;
 700                 }
 701
 702         Content::take_settings_from (c);
 703         _filters = fc->_filters;
 704 }
 705
 706 #ifdef DCPOMATIC_VARIANT_SWAROOP
 707 void
 708 FFmpegContent::add_kdm (EncryptedECinemaKDM kdm)
 709 {
 710         ChangeSignaller<Content> cc (this, FFmpegContentProperty::KDM);
 711         boost::mutex::scoped_lock lm (_mutex);
 712         _kdm = kdm;
 713
 714 }
 715
 716 bool
 717 FFmpegContent::kdm_timing_window_valid () const
 718 {
 719         if (!_kdm) {
 720                 return true;
 721         }
 722
 723         DCPOMATIC_ASSERT (Config::instance()->decryption_chain()->key());
 724
 725         DecryptedECinemaKDM decrypted (*_kdm, *Config::instance()->decryption_chain()->key());
 726
 727         dcp::LocalTime now;
 728         return (!decrypted.not_valid_before() || *decrypted.not_valid_before() < now) &&
 729                 (!decrypted.not_valid_after() || now < *decrypted.not_valid_after());
 730 }
 731
 732 #endif