src/lib/ffmpeg_content.cc

   1 /*
   2     Copyright (C) 2013-2016 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 "exceptions.h"
  34 #include "frame_rate_change.h"
  35 #include "text_content.h"
  36 #include <dcp/raw_convert.h>
  37 #include <libcxml/cxml.h>
  38 extern "C" {
  39 #include <libavformat/avformat.h>
  40 #include <libavutil/pixdesc.h>
  41 }
  42 #include <libxml++/libxml++.h>
  43 #include <boost/foreach.hpp>
  44 #include <iostream>
  45
  46 #include "i18n.h"
  47
  48 using std::string;
  49 using std::vector;
  50 using std::list;
  51 using std::cout;
  52 using std::pair;
  53 using std::make_pair;
  54 using std::max;
  55 using boost::shared_ptr;
  56 using boost::dynamic_pointer_cast;
  57 using boost::optional;
  58 using dcp::raw_convert;
  59 using namespace dcpomatic;
  60
  61 int const FFmpegContentProperty::SUBTITLE_STREAMS = 100;
  62 int const FFmpegContentProperty::SUBTITLE_STREAM = 101;
  63 int const FFmpegContentProperty::FILTERS = 102;
  64 int const FFmpegContentProperty::KDM = 103;
  65
  66 FFmpegContent::FFmpegContent (boost::filesystem::path p)
  67         : Content (p)
  68         , _encrypted (false)
  69 {
  70
  71 }
  72
  73 template <class T>
  74 optional<T>
  75 get_optional_enum (cxml::ConstNodePtr node, string name)
  76 {
  77         optional<int> const v = node->optional_number_child<int>(name);
  78         if (!v) {
  79                 return optional<T>();
  80         }
  81         return static_cast<T>(*v);
  82 }
  83
  84 FFmpegContent::FFmpegContent (cxml::ConstNodePtr node, int version, list<string>& notes)
  85         : Content (node)
  86 {
  87         video = VideoContent::from_xml (this, node, version);
  88         audio = AudioContent::from_xml (this, node, version);
  89         text = TextContent::from_xml (this, node, version);
  90
  91         list<cxml::NodePtr> c = node->node_children ("SubtitleStream");
  92         for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
  93                 _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (*i, version)));
  94                 if ((*i)->optional_number_child<int> ("Selected")) {
  95                         _subtitle_stream = _subtitle_streams.back ();
  96                 }
  97         }
  98
  99         c = node->node_children ("AudioStream");
 100         for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
 101                 shared_ptr<FFmpegAudioStream> as (new FFmpegAudioStream (*i, version));
 102                 audio->add_stream (as);
 103                 if (version < 11 && !(*i)->optional_node_child ("Selected")) {
 104                         /* This is an old file and this stream is not selected, so un-map it */
 105                         as->set_mapping (AudioMapping (as->channels (), MAX_DCP_AUDIO_CHANNELS));
 106                 }
 107         }
 108
 109         c = node->node_children ("Filter");
 110         for (list<cxml::NodePtr>::iterator i = c.begin(); i != c.end(); ++i) {
 111                 Filter const * f = Filter::from_id ((*i)->content ());
 112                 if (f) {
 113                         _filters.push_back (f);
 114                 } else {
 115                         notes.push_back (String::compose (_("DCP-o-matic no longer supports the `%1' filter, so it has been turned off."), (*i)->content()));
 116                 }
 117         }
 118
 119         optional<ContentTime::Type> const f = node->optional_number_child<ContentTime::Type> ("FirstVideo");
 120         if (f) {
 121                 _first_video = ContentTime (f.get ());
 122         }
 123
 124         _color_range = get_optional_enum<AVColorRange>(node, "ColorRange");
 125         _color_primaries = get_optional_enum<AVColorPrimaries>(node, "ColorPrimaries");
 126         _color_trc = get_optional_enum<AVColorTransferCharacteristic>(node, "ColorTransferCharacteristic");
 127         _colorspace = get_optional_enum<AVColorSpace>(node, "Colorspace");
 128         _bits_per_pixel = node->optional_number_child<int> ("BitsPerPixel");
 129         _encrypted = node->optional_bool_child("Encrypted").get_value_or(false);
 130 }
 131
 132 FFmpegContent::FFmpegContent (vector<shared_ptr<Content> > c)
 133         : Content (c)
 134 {
 135         vector<shared_ptr<Content> >::const_iterator i = c.begin ();
 136
 137         bool need_video = false;
 138         bool need_audio = false;
 139         bool need_text = false;
 140
 141         if (i != c.end ()) {
 142                 need_video = static_cast<bool> ((*i)->video);
 143                 need_audio = static_cast<bool> ((*i)->audio);
 144                 need_text = !(*i)->text.empty();
 145         }
 146
 147         while (i != c.end ()) {
 148                 if (need_video != static_cast<bool> ((*i)->video)) {
 149                         throw JoinError (_("Content to be joined must all have or not have video"));
 150                 }
 151                 if (need_audio != static_cast<bool> ((*i)->audio)) {
 152                         throw JoinError (_("Content to be joined must all have or not have audio"));
 153                 }
 154                 if (need_text != !(*i)->text.empty()) {
 155                         throw JoinError (_("Content to be joined must all have or not have subtitles or captions"));
 156                 }
 157                 ++i;
 158         }
 159
 160         if (need_video) {
 161                 video.reset (new VideoContent (this, c));
 162         }
 163         if (need_audio) {
 164                 audio.reset (new AudioContent (this, c));
 165         }
 166         if (need_text) {
 167                 text.push_back (shared_ptr<TextContent> (new TextContent (this, c)));
 168         }
 169
 170         shared_ptr<FFmpegContent> ref = dynamic_pointer_cast<FFmpegContent> (c[0]);
 171         DCPOMATIC_ASSERT (ref);
 172
 173         for (size_t i = 0; i < c.size(); ++i) {
 174                 shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c[i]);
 175                 if (fc->only_text() && fc->only_text()->use() && *(fc->_subtitle_stream.get()) != *(ref->_subtitle_stream.get())) {
 176                         throw JoinError (_("Content to be joined must use the same subtitle stream."));
 177                 }
 178         }
 179
 180         /* XXX: should probably check that more of the stuff below is the same in *this and ref */
 181
 182         _subtitle_streams = ref->subtitle_streams ();
 183         _subtitle_stream = ref->subtitle_stream ();
 184         _first_video = ref->_first_video;
 185         _filters = ref->_filters;
 186         _color_range = ref->_color_range;
 187         _color_primaries = ref->_color_primaries;
 188         _color_trc = ref->_color_trc;
 189         _colorspace = ref->_colorspace;
 190         _bits_per_pixel = ref->_bits_per_pixel;
 191         _encrypted = ref->_encrypted;
 192 }
 193
 194 void
 195 FFmpegContent::as_xml (xmlpp::Node* node, bool with_paths) const
 196 {
 197         node->add_child("Type")->add_child_text ("FFmpeg");
 198         Content::as_xml (node, with_paths);
 199
 200         if (video) {
 201                 video->as_xml (node);
 202         }
 203
 204         if (audio) {
 205                 audio->as_xml (node);
 206
 207                 BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
 208                         shared_ptr<FFmpegAudioStream> f = dynamic_pointer_cast<FFmpegAudioStream> (i);
 209                         DCPOMATIC_ASSERT (f);
 210                         f->as_xml (node->add_child("AudioStream"));
 211                 }
 212         }
 213
 214         if (only_text()) {
 215                 only_text()->as_xml (node);
 216         }
 217
 218         boost::mutex::scoped_lock lm (_mutex);
 219
 220         for (vector<shared_ptr<FFmpegSubtitleStream> >::const_iterator i = _subtitle_streams.begin(); i != _subtitle_streams.end(); ++i) {
 221                 xmlpp::Node* t = node->add_child("SubtitleStream");
 222                 if (_subtitle_stream && *i == _subtitle_stream) {
 223                         t->add_child("Selected")->add_child_text("1");
 224                 }
 225                 (*i)->as_xml (t);
 226         }
 227
 228         for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
 229                 node->add_child("Filter")->add_child_text ((*i)->id ());
 230         }
 231
 232         if (_first_video) {
 233                 node->add_child("FirstVideo")->add_child_text (raw_convert<string> (_first_video.get().get()));
 234         }
 235
 236         if (_color_range) {
 237                 node->add_child("ColorRange")->add_child_text (raw_convert<string> (static_cast<int> (*_color_range)));
 238         }
 239         if (_color_primaries) {
 240                 node->add_child("ColorPrimaries")->add_child_text (raw_convert<string> (static_cast<int> (*_color_primaries)));
 241         }
 242         if (_color_trc) {
 243                 node->add_child("ColorTransferCharacteristic")->add_child_text (raw_convert<string> (static_cast<int> (*_color_trc)));
 244         }
 245         if (_colorspace) {
 246                 node->add_child("Colorspace")->add_child_text (raw_convert<string> (static_cast<int> (*_colorspace)));
 247         }
 248         if (_bits_per_pixel) {
 249                 node->add_child("BitsPerPixel")->add_child_text (raw_convert<string> (*_bits_per_pixel));
 250         }
 251         if (_encrypted) {
 252                 node->add_child("Encypted")->add_child_text ("1");
 253         }
 254 }
 255
 256 void
 257 FFmpegContent::examine (shared_ptr<const Film> film, shared_ptr<Job> job)
 258 {
 259         ChangeSignaller<Content> cc1 (this, FFmpegContentProperty::SUBTITLE_STREAMS);
 260         ChangeSignaller<Content> cc2 (this, FFmpegContentProperty::SUBTITLE_STREAM);
 261
 262         job->set_progress_unknown ();
 263
 264         Content::examine (film, job);
 265
 266         shared_ptr<FFmpegExaminer> examiner (new FFmpegExaminer (shared_from_this (), job));
 267
 268         if (examiner->has_video ()) {
 269                 video.reset (new VideoContent (this));
 270                 video->take_from_examiner (examiner);
 271         }
 272
 273         boost::filesystem::path first_path = path (0);
 274
 275         {
 276                 boost::mutex::scoped_lock lm (_mutex);
 277
 278                 if (examiner->has_video ()) {
 279                         _first_video = examiner->first_video ();
 280                         _color_range = examiner->color_range ();
 281                         _color_primaries = examiner->color_primaries ();
 282                         _color_trc = examiner->color_trc ();
 283                         _colorspace = examiner->colorspace ();
 284                         _bits_per_pixel = examiner->bits_per_pixel ();
 285
 286                         if (examiner->rotation()) {
 287                                 double rot = *examiner->rotation ();
 288                                 if (fabs (rot - 180) < 1.0) {
 289                                         _filters.push_back (Filter::from_id ("vflip"));
 290                                         _filters.push_back (Filter::from_id ("hflip"));
 291                                 } else if (fabs (rot - 90) < 1.0) {
 292                                         _filters.push_back (Filter::from_id ("90clock"));
 293                                 } else if (fabs (rot - 270) < 1.0) {
 294                                         _filters.push_back (Filter::from_id ("90anticlock"));
 295                                 }
 296                         }
 297                 }
 298
 299                 if (!examiner->audio_streams().empty ()) {
 300                         audio.reset (new AudioContent (this));
 301
 302                         BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, examiner->audio_streams ()) {
 303                                 audio->add_stream (i);
 304                         }
 305
 306                         AudioStreamPtr as = audio->streams().front();
 307                         AudioMapping m = as->mapping ();
 308                         m.make_default (film ? film->audio_processor() : 0, first_path);
 309                         as->set_mapping (m);
 310                 }
 311
 312                 _subtitle_streams = examiner->subtitle_streams ();
 313                 if (!_subtitle_streams.empty ()) {
 314                         text.clear ();
 315                         text.push_back (shared_ptr<TextContent> (new TextContent (this, TEXT_OPEN_SUBTITLE, TEXT_UNKNOWN)));
 316                         _subtitle_stream = _subtitle_streams.front ();
 317                 }
 318
 319                 _encrypted = first_path.extension() == ".ecinema";
 320         }
 321
 322         if (examiner->has_video ()) {
 323                 set_default_colour_conversion ();
 324         }
 325
 326 #ifdef DCPOMATIC_VARIANT_SWAROOP
 327         _id = examiner->id ();
 328 #endif
 329 }
 330
 331 string
 332 FFmpegContent::summary () const
 333 {
 334         if (video && audio) {
 335                 return String::compose (_("%1 [movie]"), path_summary ());
 336         } else if (video) {
 337                 return String::compose (_("%1 [video]"), path_summary ());
 338         } else if (audio) {
 339                 return String::compose (_("%1 [audio]"), path_summary ());
 340         }
 341
 342         return path_summary ();
 343 }
 344
 345 string
 346 FFmpegContent::technical_summary () const
 347 {
 348         string as = "";
 349         BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, ffmpeg_audio_streams ()) {
 350                 as += i->technical_summary () + " " ;
 351         }
 352
 353         if (as.empty ()) {
 354                 as = "none";
 355         }
 356
 357         string ss = "none";
 358         if (_subtitle_stream) {
 359                 ss = _subtitle_stream->technical_summary ();
 360         }
 361
 362         string filt = Filter::ffmpeg_string (_filters);
 363
 364         string s = Content::technical_summary ();
 365
 366         if (video) {
 367                 s += " - " + video->technical_summary ();
 368         }
 369
 370         if (audio) {
 371                 s += " - " + audio->technical_summary ();
 372         }
 373
 374         return s + String::compose (
 375                 "ffmpeg: audio %1 subtitle %2 filters %3", as, ss, filt
 376                 );
 377 }
 378
 379 void
 380 FFmpegContent::set_subtitle_stream (shared_ptr<FFmpegSubtitleStream> s)
 381 {
 382         ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
 383
 384         {
 385                 boost::mutex::scoped_lock lm (_mutex);
 386                 _subtitle_stream = s;
 387         }
 388 }
 389
 390 bool
 391 operator== (FFmpegStream const & a, FFmpegStream const & b)
 392 {
 393         return a._id == b._id;
 394 }
 395
 396 bool
 397 operator!= (FFmpegStream const & a, FFmpegStream const & b)
 398 {
 399         return a._id != b._id;
 400 }
 401
 402 DCPTime
 403 FFmpegContent::full_length (shared_ptr<const Film> film) const
 404 {
 405         FrameRateChange const frc (film, shared_from_this());
 406         if (video) {
 407                 return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor()), film->video_frame_rate());
 408         }
 409
 410         if (audio) {
 411                 DCPTime longest;
 412                 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
 413                         longest = max (longest, DCPTime::from_frames(llrint(i->length() / frc.speed_up), i->frame_rate()));
 414                 }
 415                 return longest;
 416         }
 417
 418         /* XXX: subtitle content? */
 419
 420         return DCPTime();
 421 }
 422
 423 DCPTime
 424 FFmpegContent::approximate_length () const
 425 {
 426         if (video) {
 427                 return DCPTime::from_frames (video->length_after_3d_combine(), 24);
 428         }
 429
 430         DCPOMATIC_ASSERT (audio);
 431
 432         Frame longest = 0;
 433         BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
 434                 longest = max (longest, Frame(llrint(i->length())));
 435         }
 436
 437         return DCPTime::from_frames (longest, 24);
 438 }
 439
 440 void
 441 FFmpegContent::set_filters (vector<Filter const *> const & filters)
 442 {
 443         ChangeSignaller<Content> cc (this, FFmpegContentProperty::FILTERS);
 444
 445         {
 446                 boost::mutex::scoped_lock lm (_mutex);
 447                 _filters = filters;
 448         }
 449 }
 450
 451 string
 452 FFmpegContent::identifier () const
 453 {
 454         string s = Content::identifier();
 455
 456         if (video) {
 457                 s += "_" + video->identifier();
 458         }
 459
 460         if (only_text() && only_text()->use() && only_text()->burn()) {
 461                 s += "_" + only_text()->identifier();
 462         }
 463
 464         boost::mutex::scoped_lock lm (_mutex);
 465
 466         if (_subtitle_stream) {
 467                 s += "_" + _subtitle_stream->identifier ();
 468         }
 469
 470         for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
 471                 s += "_" + (*i)->id ();
 472         }
 473
 474         return s;
 475 }
 476
 477 void
 478 FFmpegContent::set_default_colour_conversion ()
 479 {
 480         DCPOMATIC_ASSERT (video);
 481
 482         dcp::Size const s = video->size ();
 483
 484         boost::mutex::scoped_lock lm (_mutex);
 485
 486         switch (_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)) {
 487         case AVCOL_SPC_RGB:
 488                 video->set_colour_conversion (PresetColourConversion::from_id ("srgb").conversion);
 489                 break;
 490         case AVCOL_SPC_BT709:
 491                 video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
 492                 break;
 493         case AVCOL_SPC_BT470BG:
 494         case AVCOL_SPC_SMPTE170M:
 495         case AVCOL_SPC_SMPTE240M:
 496                 video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
 497                 break;
 498         case AVCOL_SPC_BT2020_CL:
 499         case AVCOL_SPC_BT2020_NCL:
 500                 video->set_colour_conversion (PresetColourConversion::from_id ("rec2020").conversion);
 501                 break;
 502         default:
 503                 if (s.width < 1080) {
 504                         video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
 505                 } else {
 506                         video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
 507                 }
 508                 break;
 509         }
 510 }
 511
 512 void
 513 FFmpegContent::add_properties (shared_ptr<const Film> film, list<UserProperty>& p) const
 514 {
 515         Content::add_properties (film, p);
 516
 517         if (video) {
 518                 video->add_properties (p);
 519
 520                 if (_bits_per_pixel) {
 521                         int const sub = 219 * pow (2, _bits_per_pixel.get() - 8);
 522                         int const total = pow (2, _bits_per_pixel.get());
 523
 524                         switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
 525                         case AVCOL_RANGE_UNSPECIFIED:
 526                                 /// TRANSLATORS: this means that the range of pixel values used in this
 527                                 /// file is unknown (not specified in the file).
 528                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
 529                                 break;
 530                         case AVCOL_RANGE_MPEG:
 531                                 /// TRANSLATORS: this means that the range of pixel values used in this
 532                                 /// file is limited, so that not all possible values are valid.
 533                                 p.push_back (
 534                                         UserProperty (
 535                                                 UserProperty::VIDEO, _("Colour range"), String::compose (_("Limited (%1-%2)"), (total - sub) / 2, (total + sub) / 2)
 536                                                 )
 537                                         );
 538                                 break;
 539                         case AVCOL_RANGE_JPEG:
 540                                 /// TRANSLATORS: this means that the range of pixel values used in this
 541                                 /// file is full, so that all possible pixel values are valid.
 542                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), String::compose (_("Full (0-%1)"), total)));
 543                                 break;
 544                         default:
 545                                 DCPOMATIC_ASSERT (false);
 546                         }
 547                 } else {
 548                         switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
 549                         case AVCOL_RANGE_UNSPECIFIED:
 550                                 /// TRANSLATORS: this means that the range of pixel values used in this
 551                                 /// file is unknown (not specified in the file).
 552                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
 553                                 break;
 554                         case AVCOL_RANGE_MPEG:
 555                                 /// TRANSLATORS: this means that the range of pixel values used in this
 556                                 /// file is limited, so that not all possible values are valid.
 557                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Limited")));
 558                                 break;
 559                         case AVCOL_RANGE_JPEG:
 560                                 /// TRANSLATORS: this means that the range of pixel values used in this
 561                                 /// file is full, so that all possible pixel values are valid.
 562                                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Full")));
 563                                 break;
 564                         default:
 565                                 DCPOMATIC_ASSERT (false);
 566                         }
 567                 }
 568
 569                 char const * primaries[] = {
 570                         _("Unspecified"),
 571                         _("BT709"),
 572                         _("Unspecified"),
 573                         _("Unspecified"),
 574                         _("BT470M"),
 575                         _("BT470BG"),
 576                         _("SMPTE 170M (BT601)"),
 577                         _("SMPTE 240M"),
 578                         _("Film"),
 579                         _("BT2020"),
 580                         _("SMPTE ST 428-1 (CIE 1931 XYZ)"),
 581                         _("SMPTE ST 431-2 (2011)"),
 582                         _("SMPTE ST 432-1 D65 (2010)"), // 12
 583                         "", // 13
 584                         "", // 14
 585                         "", // 15
 586                         "", // 16
 587                         "", // 17
 588                         "", // 18
 589                         "", // 19
 590                         "", // 20
 591                         "", // 21
 592                         _("JEDEC P22")
 593                 };
 594
 595                 DCPOMATIC_ASSERT (AVCOL_PRI_NB <= 23);
 596                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour primaries"), primaries[_color_primaries.get_value_or(AVCOL_PRI_UNSPECIFIED)]));
 597
 598                 char const * transfers[] = {
 599                         _("Unspecified"),
 600                         _("BT709"),
 601                         _("Unspecified"),
 602                         _("Unspecified"),
 603                         _("Gamma 22 (BT470M)"),
 604                         _("Gamma 28 (BT470BG)"),
 605                         _("SMPTE 170M (BT601)"),
 606                         _("SMPTE 240M"),
 607                         _("Linear"),
 608                         _("Logarithmic (100:1 range)"),
 609                         _("Logarithmic (316:1 range)"),
 610                         _("IEC61966-2-4"),
 611                         _("BT1361 extended colour gamut"),
 612                         _("IEC61966-2-1 (sRGB or sYCC)"),
 613                         _("BT2020 for a 10-bit system"),
 614                         _("BT2020 for a 12-bit system"),
 615                         _("SMPTE ST 2084 for 10, 12, 14 and 16 bit systems"),
 616                         _("SMPTE ST 428-1"),
 617                         _("ARIB STD-B67 ('Hybrid log-gamma')")
 618                 };
 619
 620                 DCPOMATIC_ASSERT (AVCOL_TRC_NB <= 19);
 621                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour transfer characteristic"), transfers[_color_trc.get_value_or(AVCOL_TRC_UNSPECIFIED)]));
 622
 623                 char const * spaces[] = {
 624                         _("RGB / sRGB (IEC61966-2-1)"),
 625                         _("BT709"),
 626                         _("Unspecified"),
 627                         _("Unspecified"),
 628                         _("FCC"),
 629                         _("BT470BG (BT601-6)"),
 630                         _("SMPTE 170M (BT601-6)"),
 631                         _("SMPTE 240M"),
 632                         _("YCOCG"),
 633                         _("BT2020 non-constant luminance"),
 634                         _("BT2020 constant luminance"),
 635                         _("SMPTE 2085, Y'D'zD'x"),
 636                         _("Chroma-derived non-constant luminance"),
 637                         _("Chroma-derived constant luminance"),
 638                         _("BT2100")
 639                 };
 640
 641                 DCPOMATIC_ASSERT (AVCOL_SPC_NB == 15);
 642                 p.push_back (UserProperty (UserProperty::VIDEO, _("Colourspace"), spaces[_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)]));
 643
 644                 if (_bits_per_pixel) {
 645                         p.push_back (UserProperty (UserProperty::VIDEO, _("Bits per pixel"), *_bits_per_pixel));
 646                 }
 647         }
 648
 649         if (audio) {
 650                 audio->add_properties (film, p);
 651         }
 652 }
 653
 654 /** Our subtitle streams have colour maps, which can be changed, but
 655  *  they have no way of signalling that change.  As a hack, we have this
 656  *  method which callers can use when they've modified one of our subtitle
 657  *  streams.
 658  */
 659 void
 660 FFmpegContent::signal_subtitle_stream_changed ()
 661 {
 662         /* XXX: this is too late; really it should be before the change */
 663         ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
 664 }
 665
 666 vector<shared_ptr<FFmpegAudioStream> >
 667 FFmpegContent::ffmpeg_audio_streams () const
 668 {
 669         vector<shared_ptr<FFmpegAudioStream> > fa;
 670
 671         if (audio) {
 672                 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
 673                         fa.push_back (dynamic_pointer_cast<FFmpegAudioStream> (i));
 674                 }
 675         }
 676
 677         return fa;
 678 }
 679
 680 void
 681 FFmpegContent::take_settings_from (shared_ptr<const Content> c)
 682 {
 683         shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (c);
 684         if (!fc) {
 685                 return;
 686                 }
 687
 688         Content::take_settings_from (c);
 689         _filters = fc->_filters;
 690 }
 691
 692 #ifdef DCPOMATIC_VARIANT_SWAROOP
 693 void
 694 FFmpegContent::add_kdm (EncryptedECinemaKDM kdm)
 695 {
 696         ChangeSignaller<Content> cc (this, FFmpegContentProperty::KDM);
 697         boost::mutex::scoped_lock lm (_mutex);
 698         _kdm = kdm;
 699
 700 }
 701 #endif