Supporters update.
[dcpomatic.git] / src / lib / film.cc
index dacde49d4964283bfa1ea6e182e333a606c34af1..d9ab6e2a3f8a2e4df368a6eece61ae2b37187b44 100644 (file)
 
 */
 
+
 /** @file  src/film.cc
  *  @brief A representation of some audio, video and subtitle content, and details of
  *  how they should be presented in a DCP.
  */
 
+
 #include "atmos_content.h"
+#include "audio_content.h"
+#include "audio_processor.h"
+#include "change_signaller.h"
+#include "cinema.h"
+#include "compose.hpp"
+#include "config.h"
+#include "constants.h"
+#include "cross.h"
+#include "dcp_content.h"
+#include "dcp_content_type.h"
+#include "dcp_encoder.h"
+#include "dcpomatic_log.h"
+#include "digester.h"
+#include "environment_info.h"
+#include "examine_content_job.h"
+#include "exceptions.h"
+#include "ffmpeg_content.h"
+#include "ffmpeg_subtitle_stream.h"
+#include "file_log.h"
 #include "film.h"
+#include "font.h"
 #include "job.h"
-#include "util.h"
 #include "job_manager.h"
-#include "dcp_encoder.h"
-#include "transcode_job.h"
-#include "upload_job.h"
+#include "kdm_with_metadata.h"
 #include "null_log.h"
-#include "file_log.h"
-#include "dcpomatic_log.h"
-#include "exceptions.h"
-#include "examine_content_job.h"
-#include "config.h"
 #include "playlist.h"
-#include "dcp_content_type.h"
 #include "ratio.h"
-#include "cross.h"
-#include "environment_info.h"
-#include "audio_processor.h"
-#include "digester.h"
-#include "compose.hpp"
 #include "screen.h"
-#include "audio_content.h"
-#include "video_content.h"
 #include "text_content.h"
-#include "ffmpeg_content.h"
-#include "dcp_content.h"
-#include "kdm_with_metadata.h"
-#include "cinema.h"
-#include "change_signaller.h"
-#include "check_content_change_job.h"
-#include "ffmpeg_subtitle_stream.h"
-#include "font.h"
+#include "transcode_job.h"
+#include "upload_job.h"
+#include "video_content.h"
+#include "version.h"
 #include <libcxml/cxml.h>
-#include <dcp/cpl.h>
 #include <dcp/certificate_chain.h>
-#include <dcp/util.h>
-#include <dcp/local_time.h>
+#include <dcp/cpl.h>
 #include <dcp/decrypted_kdm.h>
+#include <dcp/filesystem.h>
+#include <dcp/local_time.h>
 #include <dcp/raw_convert.h>
-#include <dcp/reel_file_asset.h>
 #include <dcp/reel_asset.h>
+#include <dcp/reel_file_asset.h>
+#include <dcp/util.h>
 #include <libxml++/libxml++.h>
-#include <boost/filesystem.hpp>
 #include <boost/algorithm/string.hpp>
+#include <boost/filesystem.hpp>
 #include <boost/regex.hpp>
 #include <unistd.h>
-#include <stdexcept>
-#include <iostream>
 #include <algorithm>
 #include <cstdlib>
 #include <iomanip>
+#include <iostream>
 #include <set>
+#include <stdexcept>
 
 #include "i18n.h"
 
-using std::string;
-using std::pair;
-using std::vector;
-using std::setfill;
-using std::min;
-using std::max;
-using std::make_pair;
-using std::cout;
-using std::list;
-using std::set;
-using std::runtime_error;
-using std::copy;
+
 using std::back_inserter;
-using std::map;
+using std::copy;
+using std::cout;
+using std::dynamic_pointer_cast;
 using std::exception;
 using std::find;
+using std::list;
+using std::make_pair;
+using std::make_shared;
+using std::map;
+using std::max;
+using std::min;
+using std::pair;
+using std::runtime_error;
+using std::set;
+using std::setfill;
 using std::shared_ptr;
+using std::string;
+using std::vector;
 using std::weak_ptr;
-using std::make_shared;
-using std::dynamic_pointer_cast;
 using boost::optional;
 using boost::is_any_of;
 #if BOOST_VERSION >= 106100
@@ -108,7 +112,9 @@ using namespace boost::placeholders;
 using dcp::raw_convert;
 using namespace dcpomatic;
 
-string const Film::metadata_file = "metadata.xml";
+
+static constexpr char metadata_file[] = "metadata.xml";
+
 
 /* 5 -> 6
  * AudioMapping XML changed.
@@ -141,6 +147,7 @@ string const Film::metadata_file = "metadata.xml";
  */
 int const Film::current_state_version = 38;
 
+
 /** Construct a Film object in a given directory.
  *
  *  @param dir Film directory.
@@ -148,65 +155,58 @@ int const Film::current_state_version = 38;
 
 Film::Film (optional<boost::filesystem::path> dir)
        : _playlist (new Playlist)
-       , _use_isdcf_name (true)
+       , _use_isdcf_name (Config::instance()->use_isdcf_name_by_default())
        , _dcp_content_type (Config::instance()->default_dcp_content_type ())
-       , _container (Config::instance()->default_container ())
-       , _resolution (RESOLUTION_2K)
+       , _container(Ratio::from_id("185"))
+       , _resolution (Resolution::TWO_K)
        , _encrypted (false)
        , _context_id (dcp::make_uuid ())
        , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
-       , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
        , _video_frame_rate (24)
        , _audio_channels (Config::instance()->default_dcp_audio_channels ())
        , _three_d (false)
        , _sequence (true)
        , _interop (Config::instance()->default_interop ())
+       , _limit_to_smpte_bv20(false)
        , _audio_processor (0)
-       , _reel_type (REELTYPE_SINGLE)
+       , _reel_type (ReelType::SINGLE)
        , _reel_length (2000000000)
        , _reencode_j2k (false)
        , _user_explicit_video_frame_rate (false)
        , _user_explicit_container (false)
        , _user_explicit_resolution (false)
        , _name_language (dcp::LanguageTag("en-US"))
-       , _audio_language (dcp::LanguageTag("en-US"))
-       , _release_territory (dcp::LanguageTag::RegionSubtag("US"))
+       , _release_territory(Config::instance()->default_territory())
        , _version_number (1)
        , _status (dcp::Status::FINAL)
-       , _luminance (dcp::Luminance(4.5, dcp::Luminance::Unit::FOOT_LAMBERT))
+       , _audio_language(Config::instance()->default_audio_language())
        , _state_version (current_state_version)
        , _dirty (false)
        , _tolerant (false)
 {
        set_isdcf_date_today ();
 
+       auto metadata = Config::instance()->default_metadata();
+       if (metadata.find("chain") != metadata.end()) {
+               _chain = metadata["chain"];
+       }
+       if (metadata.find("distributor") != metadata.end()) {
+               _distributor = metadata["distributor"];
+       }
+       if (metadata.find("facility") != metadata.end()) {
+               _facility = metadata["facility"];
+       }
+       if (metadata.find("studio") != metadata.end()) {
+               _studio = metadata["studio"];
+       }
+
        _playlist_change_connection = _playlist->Change.connect (bind (&Film::playlist_change, this, _1));
        _playlist_order_changed_connection = _playlist->OrderChange.connect (bind (&Film::playlist_order_changed, this));
        _playlist_content_change_connection = _playlist->ContentChange.connect (bind (&Film::playlist_content_change, this, _1, _2, _3, _4));
        _playlist_length_change_connection = _playlist->LengthChange.connect (bind(&Film::playlist_length_change, this));
 
        if (dir) {
-               /* Make state.directory a complete path without ..s (where possible)
-                  (Code swiped from Adam Bowen on stackoverflow)
-                  XXX: couldn't/shouldn't this just be boost::filesystem::canonical?
-               */
-
-               boost::filesystem::path p (boost::filesystem::system_complete (dir.get()));
-               boost::filesystem::path result;
-               for (auto i: p) {
-                       if (i == "..") {
-                               boost::system::error_code ec;
-                               if (boost::filesystem::is_symlink(result, ec) || result.filename() == "..") {
-                                       result /= i;
-                               } else {
-                                       result = result.parent_path ();
-                               }
-                       } else if (i != ".") {
-                               result /= i;
-                       }
-               }
-
-               set_directory (result.make_preferred ());
+               set_directory(dcp::filesystem::weakly_canonical(*dir));
        }
 
        if (_directory) {
@@ -251,12 +251,21 @@ Film::video_identifier () const
                s += "_I";
        } else {
                s += "_S";
+               if (_limit_to_smpte_bv20) {
+                       s += "_L20";
+               } else {
+                       s += "_L21";
+               }
        }
 
        if (_three_d) {
                s += "_3D";
        }
 
+       if (_reencode_j2k) {
+               s += "_R";
+       }
+
        return s;
 }
 
@@ -288,13 +297,13 @@ Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
        auto p = dir ("analysis");
 
        Digester digester;
-       for (auto i: playlist->content ()) {
-               if (!i->audio) {
+       for (auto content: playlist->content()) {
+               if (!content->audio) {
                        continue;
                }
 
-               digester.add (i->digest ());
-               digester.add (i->audio->mapping().digest ());
+               digester.add(content->digest());
+               digester.add(content->audio->mapping().digest());
                if (playlist->content().size() != 1) {
                        /* Analyses should be considered equal regardless of gain
                           if they were made from just one piece of content.  This
@@ -302,7 +311,14 @@ Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
                           analysis at the plotting stage rather than having to
                           recompute it.
                        */
-                       digester.add (i->audio->gain ());
+                       digester.add(content->audio->gain());
+
+                       /* Likewise we only care about position if we're looking at a
+                        * whole-project view.
+                        */
+                       digester.add(content->position().get());
+                       digester.add(content->trim_start().get());
+                       digester.add(content->trim_end().get());
                }
        }
 
@@ -324,6 +340,7 @@ Film::subtitle_analysis_path (shared_ptr<const Content> content) const
 
        Digester digester;
        digester.add (content->digest());
+       digester.add(_interop ? "1" : "0");
 
        if (!content->text.empty()) {
                auto tc = content->text.front();
@@ -349,77 +366,6 @@ Film::subtitle_analysis_path (shared_ptr<const Content> content) const
 }
 
 
-/** Add suitable Jobs to the JobManager to create a DCP for this Film.
- *  @param gui true if this is being called from a GUI tool.
- *  @param check true to check the content in the project for changes before making the DCP.
- */
-void
-Film::make_dcp (bool gui, bool check)
-{
-       if (dcp_name().find ("/") != string::npos) {
-               throw BadSettingError (_("name"), _("Cannot contain slashes"));
-       }
-
-       if (container() == nullptr) {
-               throw MissingSettingError (_("container"));
-       }
-
-       if (content().empty()) {
-               throw runtime_error (_("You must add some content to the DCP before creating it"));
-       }
-
-       if (length() == DCPTime()) {
-               throw runtime_error (_("The DCP is empty, perhaps because all the content has zero length."));
-       }
-
-       if (dcp_content_type() == nullptr) {
-               throw MissingSettingError (_("content type"));
-       }
-
-       if (name().empty()) {
-               set_name ("DCP");
-       }
-
-       for (auto i: content ()) {
-               if (!i->paths_valid()) {
-                       throw runtime_error (_("some of your content is missing"));
-               }
-               auto dcp = dynamic_pointer_cast<const DCPContent>(i);
-               if (dcp && dcp->needs_kdm()) {
-                       throw runtime_error (_("Some of your content needs a KDM"));
-               }
-               if (dcp && dcp->needs_assets()) {
-                       throw runtime_error (_("Some of your content needs an OV"));
-               }
-       }
-
-       set_isdcf_date_today ();
-
-       for (auto i: environment_info ()) {
-               LOG_GENERAL_NC (i);
-       }
-
-       for (auto i: content ()) {
-               LOG_GENERAL ("Content: %1", i->technical_summary());
-       }
-       LOG_GENERAL ("DCP video rate %1 fps", video_frame_rate());
-       if (Config::instance()->only_servers_encode ()) {
-               LOG_GENERAL_NC ("0 threads: ONLY SERVERS SET TO ENCODE");
-       } else {
-               LOG_GENERAL ("%1 threads", Config::instance()->master_encoding_threads());
-       }
-       LOG_GENERAL ("J2K bandwidth %1", j2k_bandwidth());
-
-       auto tj = make_shared<TranscodeJob>(shared_from_this());
-       tj->set_encoder (make_shared<DCPEncoder>(shared_from_this(), tj));
-       if (check) {
-               auto cc = make_shared<CheckContentChangeJob>(shared_from_this(), tj, gui);
-               JobManager::instance()->add (cc);
-       } else {
-               JobManager::instance()->add (tj);
-       }
-}
-
 /** Start a job to send our DCP to the configured TMS */
 void
 Film::send_dcp_to_tms ()
@@ -434,6 +380,9 @@ Film::metadata (bool with_content_paths) const
        auto root = doc->create_root_node ("Metadata");
 
        root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
+       auto last_write = root->add_child("LastWrittenBy");
+       last_write->add_child_text (dcpomatic_version);
+       last_write->set_attribute("git", dcpomatic_git_commit);
        root->add_child("Name")->add_child_text (_name);
        root->add_child("UseISDCFName")->add_child_text (_use_isdcf_name ? "1" : "0");
 
@@ -447,13 +396,14 @@ Film::metadata (bool with_content_paths) const
 
        root->add_child("Resolution")->add_child_text (resolution_to_string (_resolution));
        root->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
-       _isdcf_metadata.as_xml (root->add_child ("ISDCFMetadata"));
        root->add_child("VideoFrameRate")->add_child_text (raw_convert<string> (_video_frame_rate));
+       root->add_child("AudioFrameRate")->add_child_text(raw_convert<string>(_audio_frame_rate));
        root->add_child("ISDCFDate")->add_child_text (boost::gregorian::to_iso_string (_isdcf_date));
        root->add_child("AudioChannels")->add_child_text (raw_convert<string> (_audio_channels));
        root->add_child("ThreeD")->add_child_text (_three_d ? "1" : "0");
        root->add_child("Sequence")->add_child_text (_sequence ? "1" : "0");
        root->add_child("Interop")->add_child_text (_interop ? "1" : "0");
+       root->add_child("LimitToSMPTEBv20")->add_child_text(_limit_to_smpte_bv20 ? "1" : "0");
        root->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
        root->add_child("Key")->add_child_text (_key.hex ());
        root->add_child("ContextID")->add_child_text (_context_id);
@@ -464,10 +414,10 @@ Film::metadata (bool with_content_paths) const
        root->add_child("ReelLength")->add_child_text (raw_convert<string> (_reel_length));
        root->add_child("ReencodeJ2K")->add_child_text (_reencode_j2k ? "1" : "0");
        root->add_child("UserExplicitVideoFrameRate")->add_child_text(_user_explicit_video_frame_rate ? "1" : "0");
-       for (map<dcp::Marker, DCPTime>::const_iterator i = _markers.begin(); i != _markers.end(); ++i) {
+       for (auto const& marker: _markers) {
                auto m = root->add_child("Marker");
-               m->set_attribute("Type", dcp::marker_to_string(i->first));
-               m->add_child_text(raw_convert<string>(i->second.get()));
+               m->set_attribute("Type", dcp::marker_to_string(marker.first));
+               m->add_child_text(raw_convert<string>(marker.second.get()));
        }
        for (auto i: _ratings) {
                i.as_xml (root->add_child("Rating"));
@@ -476,19 +426,39 @@ Film::metadata (bool with_content_paths) const
                root->add_child("ContentVersion")->add_child_text(i);
        }
        root->add_child("NameLanguage")->add_child_text(_name_language.to_string());
-       root->add_child("AudioLanguage")->add_child_text(_audio_language.to_string());
-       root->add_child("ReleaseTerritory")->add_child_text(_release_territory.subtag());
+       root->add_child("TerritoryType")->add_child_text(territory_type_to_string(_territory_type));
+       if (_release_territory) {
+               root->add_child("ReleaseTerritory")->add_child_text(_release_territory->subtag());
+       }
+       if (_sign_language_video_language) {
+               root->add_child("SignLanguageVideoLanguage")->add_child_text(_sign_language_video_language->to_string());
+       }
        root->add_child("VersionNumber")->add_child_text(raw_convert<string>(_version_number));
        root->add_child("Status")->add_child_text(dcp::status_to_string(_status));
-       root->add_child("Chain")->add_child_text(_chain);
-       root->add_child("Distributor")->add_child_text(_distributor);
-       root->add_child("Facility")->add_child_text(_facility);
-       root->add_child("LuminanceValue")->add_child_text(raw_convert<string>(_luminance.value()));
-       root->add_child("LuminanceUnit")->add_child_text(dcp::Luminance::unit_to_string(_luminance.unit()));
+       if (_chain) {
+               root->add_child("Chain")->add_child_text(*_chain);
+       }
+       if (_distributor) {
+               root->add_child("Distributor")->add_child_text(*_distributor);
+       }
+       if (_facility) {
+               root->add_child("Facility")->add_child_text(*_facility);
+       }
+       if (_studio) {
+               root->add_child("Studio")->add_child_text(*_studio);
+       }
+       root->add_child("TempVersion")->add_child_text(_temp_version ? "1" : "0");
+       root->add_child("PreRelease")->add_child_text(_pre_release ? "1" : "0");
+       root->add_child("RedBand")->add_child_text(_red_band ? "1" : "0");
+       root->add_child("TwoDVersionOfThreeD")->add_child_text(_two_d_version_of_three_d ? "1" : "0");
+       if (_luminance) {
+               root->add_child("LuminanceValue")->add_child_text(raw_convert<string>(_luminance->value()));
+               root->add_child("LuminanceUnit")->add_child_text(dcp::Luminance::unit_to_string(_luminance->unit()));
+       }
        root->add_child("UserExplicitContainer")->add_child_text(_user_explicit_container ? "1" : "0");
        root->add_child("UserExplicitResolution")->add_child_text(_user_explicit_resolution ? "1" : "0");
-       for (auto i: _subtitle_languages) {
-               root->add_child("SubtitleLanguage")->add_child_text(i.to_string());
+       if (_audio_language) {
+               root->add_child("AudioLanguage")->add_child_text(_audio_language->to_string());
        }
        _playlist->as_xml (root->add_child ("Playlist"), with_content_paths);
 
@@ -503,19 +473,24 @@ Film::write_metadata (boost::filesystem::path path) const
 
 /** Write state to our `metadata' file */
 void
-Film::write_metadata () const
+Film::write_metadata ()
 {
        DCPOMATIC_ASSERT (directory());
-       boost::filesystem::create_directories (directory().get());
-       metadata()->write_to_file_formatted(file(metadata_file).string());
-       _dirty = false;
+       dcp::filesystem::create_directories(directory().get());
+       auto const filename = file(metadata_file);
+       try {
+               metadata()->write_to_file_formatted(filename.string());
+       } catch (xmlpp::exception& e) {
+               throw FileError(String::compose("Could not write metadata file (%1)", e.what()), filename);
+       }
+       set_dirty (false);
 }
 
 /** Write a template from this film */
 void
 Film::write_template (boost::filesystem::path path) const
 {
-       boost::filesystem::create_directories (path.parent_path());
+       dcp::filesystem::create_directories(path.parent_path());
        shared_ptr<xmlpp::Document> doc = metadata (false);
        metadata(false)->write_to_file_formatted(path.string());
 }
@@ -527,19 +502,19 @@ list<string>
 Film::read_metadata (optional<boost::filesystem::path> path)
 {
        if (!path) {
-               if (boost::filesystem::exists (file ("metadata")) && !boost::filesystem::exists (file (metadata_file))) {
+               if (dcp::filesystem::exists(file("metadata")) && !dcp::filesystem::exists(file(metadata_file))) {
                        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!"));
                }
 
                path = file (metadata_file);
        }
 
-       if (!boost::filesystem::exists(*path)) {
+       if (!dcp::filesystem::exists(*path)) {
                throw FileNotFoundError(*path);
        }
 
        cxml::Document f ("Metadata");
-       f.read_file (path.get ());
+       f.read_file(dcp::filesystem::fix_long_path(path.get()));
 
        _state_version = f.number_child<int> ("Version");
        if (_state_version > current_state_version) {
@@ -547,23 +522,23 @@ Film::read_metadata (optional<boost::filesystem::path> path)
        } else if (_state_version < current_state_version) {
                /* This is an older version; save a copy (if we haven't already) */
                auto const older = path->parent_path() / String::compose("metadata.%1.xml", _state_version);
-               if (!boost::filesystem::is_regular_file(older)) {
+               if (!dcp::filesystem::is_regular_file(older)) {
                        try {
-                               boost::filesystem::copy_file(*path, older);
+                               dcp::filesystem::copy_file(*path, older);
                        } catch (...) {
                                /* Never mind; at least we tried */
                        }
                }
        }
 
+       _last_written_by = f.optional_string_child("LastWrittenBy");
+
        _name = f.string_child ("Name");
        if (_state_version >= 9) {
                _use_isdcf_name = f.bool_child ("UseISDCFName");
-               _isdcf_metadata = ISDCFMetadata (f.node_child ("ISDCFMetadata"));
                _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("ISDCFDate"));
        } else {
                _use_isdcf_name = f.bool_child ("UseDCIName");
-               _isdcf_metadata = ISDCFMetadata (f.node_child ("DCIMetadata"));
                _isdcf_date = boost::gregorian::from_undelimited_string (f.string_child ("DCIDate"));
        }
 
@@ -585,6 +560,7 @@ Film::read_metadata (optional<boost::filesystem::path> path)
        _resolution = string_to_resolution (f.string_child ("Resolution"));
        _j2k_bandwidth = f.number_child<int> ("J2KBandwidth");
        _video_frame_rate = f.number_child<int> ("VideoFrameRate");
+       _audio_frame_rate = f.optional_number_child<int>("AudioFrameRate").get_value_or(48000);
        _encrypted = f.bool_child ("Encrypted");
        _audio_channels = f.number_child<int> ("AudioChannels");
        /* We used to allow odd numbers (and zero) channels, but it's just not worth
@@ -604,6 +580,7 @@ Film::read_metadata (optional<boost::filesystem::path> path)
 
        _three_d = f.bool_child ("ThreeD");
        _interop = f.bool_child ("Interop");
+       _limit_to_smpte_bv20 = f.optional_bool_child("LimitToSMPTEBv20").get_value_or(false);
        _key = dcp::Key (f.string_child ("Key"));
        _context_id = f.optional_string_child("ContextID").get_value_or (dcp::make_uuid ());
 
@@ -620,7 +597,7 @@ Film::read_metadata (optional<boost::filesystem::path> path)
                }
        }
 
-       _reel_type = static_cast<ReelType> (f.optional_number_child<int>("ReelType").get_value_or (static_cast<int>(REELTYPE_SINGLE)));
+       _reel_type = static_cast<ReelType> (f.optional_number_child<int>("ReelType").get_value_or (static_cast<int>(ReelType::SINGLE)));
        _reel_length = f.optional_number_child<int64_t>("ReelLength").get_value_or (2000000000);
        _reencode_j2k = f.optional_bool_child("ReencodeJ2K").get_value_or(false);
        _user_explicit_video_frame_rate = f.optional_bool_child("UserExplicitVideoFrameRate").get_value_or(false);
@@ -641,84 +618,97 @@ Film::read_metadata (optional<boost::filesystem::path> path)
        if (name_language) {
                _name_language = dcp::LanguageTag (*name_language);
        }
-       auto audio_language = f.optional_string_child("AudioLanguage");
-       if (audio_language) {
-               _audio_language = dcp::LanguageTag (*audio_language);
+       auto territory_type = f.optional_string_child("TerritoryType");
+       if (territory_type) {
+               _territory_type = string_to_territory_type(*territory_type);
        }
        auto release_territory = f.optional_string_child("ReleaseTerritory");
        if (release_territory) {
                _release_territory = dcp::LanguageTag::RegionSubtag (*release_territory);
        }
 
-       _version_number = f.optional_number_child<int>("VersionNumber").get_value_or(0);
+       auto sign_language_video_language = f.optional_string_child("SignLanguageVideoLanguage");
+       if (sign_language_video_language) {
+               _sign_language_video_language = dcp::LanguageTag(*sign_language_video_language);
+       }
+
+       _version_number = f.optional_number_child<int>("VersionNumber").get_value_or(1);
 
        auto status = f.optional_string_child("Status");
        if (status) {
                _status = dcp::string_to_status (*status);
        }
 
-       _chain = f.optional_string_child("Chain").get_value_or("");
-       _distributor = f.optional_string_child("Distributor").get_value_or("");
-       _facility = f.optional_string_child("Facility").get_value_or("");
+       _chain = f.optional_string_child("Chain");
+       _distributor = f.optional_string_child("Distributor");
+       _facility = f.optional_string_child("Facility");
+       _studio = f.optional_string_child("Studio");
+       _temp_version = f.optional_bool_child("TempVersion").get_value_or(false);
+       _pre_release = f.optional_bool_child("PreRelease").get_value_or(false);
+       _red_band = f.optional_bool_child("RedBand").get_value_or(false);
+       _two_d_version_of_three_d = f.optional_bool_child("TwoDVersionOfThreeD").get_value_or(false);
 
-       auto value = f.optional_number_child<float>("LuminanceValue").get_value_or(4.5);
+       auto value = f.optional_number_child<float>("LuminanceValue");
        auto unit = f.optional_string_child("LuminanceUnit");
-       if (unit) {
-               _luminance = dcp::Luminance (value, dcp::Luminance::string_to_unit(*unit));
+       if (value && unit) {
+               _luminance = dcp::Luminance (*value, dcp::Luminance::string_to_unit(*unit));
        }
 
        /* Disable guessing for files made in previous DCP-o-matic versions */
        _user_explicit_container = f.optional_bool_child("UserExplicitContainer").get_value_or(true);
        _user_explicit_resolution = f.optional_bool_child("UserExplicitResolution").get_value_or(true);
 
-       for (auto i: f.node_children("SubtitleLanguage")) {
-               _subtitle_languages.push_back (dcp::LanguageTag(i->content()));
-       }
-
-       list<string> notes;
-       _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
-
-       /* Write backtraces to this film's directory, until another film is loaded */
-       if (_directory) {
-               set_backtrace_file (file ("backtrace.txt"));
+       auto audio_language = f.optional_string_child("AudioLanguage");
+       if (audio_language) {
+               _audio_language = dcp::LanguageTag(*audio_language);
        }
 
-       /* Around 2.15.108 we removed subtitle language state from the text content and the ISDCF
-        * metadata and put it into the Film instead.  If we've loaded an old Film let's try and fish
-        * out the settings from where they were so that they don't get lost.
-        */
-
-       optional<dcp::LanguageTag> found_language;
-
-       for (auto i: f.node_child("Playlist")->node_children("Content")) {
-               auto text = i->optional_node_child("Text");
-               if (text && text->optional_string_child("Language") && !found_language) {
+       /* Read the old ISDCFMetadata tag from 2.14.x metadata */
+       auto isdcf = f.optional_node_child("ISDCFMetadata");
+       if (isdcf) {
+               if (auto territory = isdcf->optional_string_child("Territory")) {
                        try {
-                               found_language = dcp::LanguageTag(text->string_child("Language"));
-                       } catch (...) {}
+                               _release_territory = dcp::LanguageTag::RegionSubtag(*territory);
+                       } catch (...) {
+                               /* Invalid region subtag; just ignore it */
+                       }
                }
-       }
-
-       if (_state_version >= 9) {
-               auto isdcf_language = f.node_child("ISDCFMetadata")->optional_string_child("SubtitleLanguage");
-               if (isdcf_language && !found_language) {
+               if (auto audio_language = isdcf->optional_string_child("AudioLanguage")) {
                        try {
-                               found_language = dcp::LanguageTag(*isdcf_language);
+                               _audio_language = dcp::LanguageTag(*audio_language);
                        } catch (...) {
-                               try {
-                                       found_language = dcp::LanguageTag(boost::algorithm::to_lower_copy(*isdcf_language));
-                               } catch (...) {
-
-                               }
+                               /* Invalid language tag; just ignore it */
                        }
                }
+               if (auto content_version = isdcf->optional_string_child("ContentVersion")) {
+                       _content_versions.push_back (*content_version);
+               }
+               if (auto rating = isdcf->optional_string_child("Rating")) {
+                       _ratings.push_back (dcp::Rating("", *rating));
+               }
+               if (auto mastered_luminance = isdcf->optional_number_child<float>("MasteredLuminance")) {
+                       if (*mastered_luminance > 0) {
+                               _luminance = dcp::Luminance(*mastered_luminance, dcp::Luminance::Unit::FOOT_LAMBERT);
+                       }
+               }
+               _studio = isdcf->optional_string_child("Studio");
+               _facility = isdcf->optional_string_child("Facility");
+               _temp_version = isdcf->optional_bool_child("TempVersion").get_value_or(false);
+               _pre_release = isdcf->optional_bool_child("PreRelease").get_value_or(false);
+               _red_band = isdcf->optional_bool_child("RedBand").get_value_or(false);
+               _two_d_version_of_three_d = isdcf->optional_bool_child("TwoDVersionOfThreeD").get_value_or(false);
+               _chain = isdcf->optional_string_child("Chain");
        }
 
-       if (found_language) {
-               _subtitle_languages.push_back (*found_language);
+       list<string> notes;
+       _playlist->set_from_xml (shared_from_this(), f.node_child ("Playlist"), _state_version, notes);
+
+       /* Write backtraces to this film's directory, until another film is loaded */
+       if (_directory) {
+               set_backtrace_file (file ("backtrace.txt"));
        }
 
-       _dirty = false;
+       set_dirty (false);
        return notes;
 }
 
@@ -736,7 +726,7 @@ Film::dir (boost::filesystem::path d, bool create) const
        p /= d;
 
        if (create) {
-               boost::filesystem::create_directories (p);
+               dcp::filesystem::create_directories(p);
        }
 
        return p;
@@ -754,7 +744,7 @@ Film::file (boost::filesystem::path f) const
        p /= _directory.get();
        p /= f;
 
-       boost::filesystem::create_directories (p.parent_path ());
+       dcp::filesystem::create_directories(p.parent_path());
 
        return p;
 }
@@ -784,14 +774,73 @@ Film::mapped_audio_channels () const
        return mapped;
 }
 
+
+pair<optional<dcp::LanguageTag>, vector<dcp::LanguageTag>>
+Film::subtitle_languages(bool* burnt_in) const
+{
+       if (burnt_in) {
+               *burnt_in = true;
+       }
+
+       pair<optional<dcp::LanguageTag>, vector<dcp::LanguageTag>> result;
+       for (auto i: content()) {
+               auto dcp = dynamic_pointer_cast<DCPContent>(i);
+               for (auto const& text: i->text) {
+                       auto const use = text->use() || (dcp && dcp->reference_text(TextType::OPEN_SUBTITLE));
+                       if (use && text->type() == TextType::OPEN_SUBTITLE) {
+                               if (!text->burn() && burnt_in) {
+                                       *burnt_in = false;
+                               }
+                               if (text->language()) {
+                                       if (text->language_is_additional()) {
+                                               result.second.push_back(text->language().get());
+                                       } else {
+                                               result.first = text->language().get();
+                                       }
+                               }
+                       }
+               }
+               if (i->video && i->video->burnt_subtitle_language()) {
+                       result.first = i->video->burnt_subtitle_language();
+               }
+       }
+
+       std::sort (result.second.begin(), result.second.end());
+       auto last = std::unique (result.second.begin(), result.second.end());
+       result.second.erase (last, result.second.end());
+       return result;
+}
+
+
+vector<dcp::LanguageTag>
+Film::closed_caption_languages() const
+{
+       vector<dcp::LanguageTag> result;
+       for (auto i: content()) {
+               for (auto text: i->text) {
+                       if (text->use() && text->type() == TextType::CLOSED_CAPTION && text->dcp_track() && text->dcp_track()->language) {
+                               result.push_back(*text->dcp_track()->language);
+                       }
+               }
+       }
+
+       return result;
+}
+
+
 /** @return a ISDCF-compliant name for a DCP of this film */
 string
 Film::isdcf_name (bool if_created_now) const
 {
-       string d;
+       string isdcf_name;
 
        auto raw_name = name ();
 
+       auto to_upper = [](string s) {
+               transform(s.begin(), s.end(), s.begin(), ::toupper);
+               return s;
+       };
+
        /* Split the raw name up into words */
        vector<string> words;
        split (words, raw_name, is_any_of (" _-"));
@@ -827,117 +876,129 @@ Film::isdcf_name (bool if_created_now) const
                }
        }
 
-       if (fixed_name.length() > 14) {
-               fixed_name = fixed_name.substr (0, 14);
-       }
+       fixed_name = fixed_name.substr(0, Config::instance()->isdcf_name_part_length());
 
-       d += fixed_name;
+       isdcf_name += fixed_name;
 
        if (dcp_content_type()) {
-               d += "_" + dcp_content_type()->isdcf_name();
-               d += "-" + raw_convert<string>(isdcf_metadata().content_version);
+               isdcf_name += "_" + dcp_content_type()->isdcf_name();
+               string version = "1";
+               if (_interop) {
+                       if (!_content_versions.empty()) {
+                               auto cv = _content_versions[0];
+                               if (!cv.empty() && std::all_of(cv.begin(), cv.end(), isdigit)) {
+                                       version = cv;
+                               }
+                       }
+               } else {
+                       version = dcp::raw_convert<string>(_version_number);
+               }
+               isdcf_name += "-" + version;
        }
 
-       auto const dm = isdcf_metadata ();
-
-       if (dm.temp_version) {
-               d += "-Temp";
+       if (_temp_version) {
+               isdcf_name += "-Temp";
        }
 
-       if (dm.pre_release) {
-               d += "-Pre";
+       if (_pre_release) {
+               isdcf_name += "-Pre";
        }
 
-       if (dm.red_band) {
-               d += "-RedBand";
+       if (_red_band) {
+               isdcf_name += "-RedBand";
        }
 
-       if (!dm.chain.empty ()) {
-               d += "-" + dm.chain;
+       if (_chain && !_chain->empty()) {
+               isdcf_name += "-" + *_chain;
        }
 
        if (three_d ()) {
-               d += "-3D";
+               isdcf_name += "-3D";
        }
 
-       if (dm.two_d_version_of_three_d) {
-               d += "-2D";
+       if (_two_d_version_of_three_d) {
+               isdcf_name += "-2D";
        }
 
-       if (!dm.mastered_luminance.empty ()) {
-               d += "-" + dm.mastered_luminance;
+       if (_luminance) {
+               auto fl = _luminance->value_in_foot_lamberts();
+               char buffer[64];
+               snprintf (buffer, sizeof(buffer), "%.1f", fl);
+               isdcf_name += String::compose("-%1fl", buffer);
        }
 
        if (video_frame_rate() != 24) {
-               d += "-" + raw_convert<string>(video_frame_rate());
+               isdcf_name += "-" + raw_convert<string>(video_frame_rate());
        }
 
        if (container()) {
-               d += "_" + container()->isdcf_name();
+               isdcf_name += "_" + container()->isdcf_name();
        }
 
+       auto content_list = content();
+
        /* XXX: this uses the first bit of content only */
 
        /* Interior aspect ratio.  The standard says we don't do this for trailers, for some strange reason */
        if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::ContentKind::TRAILER) {
-               Ratio const* content_ratio = nullptr;
-               for (auto i: content ()) {
-                       if (i->video) {
-                               /* Here's the first piece of video content */
-                               content_ratio = Ratio::nearest_from_ratio(i->video->scaled_size(frame_size()).ratio());
-                               break;
+               auto first_video = std::find_if(content_list.begin(), content_list.end(), [](shared_ptr<Content> c) { return static_cast<bool>(c->video); });
+               if (first_video != content_list.end()) {
+                       if (auto scaled_size = (*first_video)->video->scaled_size(frame_size())) {
+                               auto first_ratio = lrintf(scaled_size->ratio() * 100);
+                               auto container_ratio = lrintf(container()->ratio() * 100);
+                               if (first_ratio != container_ratio) {
+                                       isdcf_name += "-" + dcp::raw_convert<string>(first_ratio);
+                               }
                        }
                }
-
-               if (content_ratio && content_ratio != container()) {
-                       /* This needs to be the numeric version of the ratio, and ::id() is close enough */
-                       d += "-" + content_ratio->id();
-               }
        }
 
-       if (!dm.audio_language.empty ()) {
-               d += "_" + dm.audio_language;
-
-               /* I'm not clear on the precise details of the convention for CCAP labelling;
-                  for now I'm just appending -CCAP if we have any closed captions.
-               */
-
-               auto burnt_in = true;
-               auto ccap = false;
-               for (auto i: content()) {
-                       for (auto j: i->text) {
-                               if (j->type() == TEXT_OPEN_SUBTITLE && j->use() && !j->burn()) {
-                                       burnt_in = false;
-                               } else if (j->type() == TEXT_CLOSED_CAPTION && j->use()) {
-                                       ccap = true;
-                               }
+       auto entry_for_language = [](dcp::LanguageTag const& tag) {
+               /* Look up what we should be using for this tag in the DCNC name */
+               for (auto const& dcnc: dcp::dcnc_tags()) {
+                       if (tag.to_string() == dcnc.first) {
+                               return dcnc.second;
                        }
                }
+               /* Fallback to the language subtag, if there is one */
+               return tag.language() ? tag.language()->subtag() : "XX";
+       };
 
-               if (!_subtitle_languages.empty()) {
-                       auto lang = _subtitle_languages.front().language().get_value_or("en").subtag();
-                       if (burnt_in) {
-                               transform (lang.begin(), lang.end(), lang.begin(), ::tolower);
-                       } else {
-                               transform (lang.begin(), lang.end(), lang.begin(), ::toupper);
-                       }
+       auto audio_language = _audio_language ? entry_for_language(*_audio_language) : "XX";
 
-                       d += "-" + lang;
-                       if (ccap) {
-                               d += "-CCAP";
-                       }
+       isdcf_name += "_" + to_upper (audio_language);
+
+       bool burnt_in;
+       auto sub_langs = subtitle_languages(&burnt_in);
+       auto ccap_langs = closed_caption_languages();
+       if (sub_langs.first && sub_langs.first->language()) {
+               auto lang = entry_for_language(*sub_langs.first);
+               if (burnt_in) {
+                       transform (lang.begin(), lang.end(), lang.begin(), ::tolower);
                } else {
-                       /* No subtitles */
-                       d += "-XX";
+                       lang = to_upper (lang);
                }
-       }
 
-       if (!dm.territory.empty ()) {
-               d += "_" + dm.territory;
-               if (dm.rating.empty ()) {
-                       d += "-NR";
-               } else {
-                       d += "-" + dm.rating;
+               isdcf_name += "-" + lang;
+       } else if (!ccap_langs.empty()) {
+               isdcf_name += "-" + to_upper(entry_for_language(ccap_langs[0])) + "-CCAP";
+       } else {
+               /* No subtitles */
+               isdcf_name += "-XX";
+       }
+
+       if (_territory_type == TerritoryType::INTERNATIONAL_TEXTED) {
+               isdcf_name += "_INT-TD";
+       } else if (_territory_type == TerritoryType::INTERNATIONAL_TEXTLESS) {
+               isdcf_name += "_INT-TL";
+       } else if (_release_territory) {
+               auto territory = _release_territory->subtag();
+               isdcf_name += "_" + to_upper (territory);
+               if (!_ratings.empty()) {
+                       auto label = _ratings[0].label;
+                       boost::erase_all(label, "+");
+                       boost::erase_all(label, "-");
+                       isdcf_name += "-" + label;
                }
        }
 
@@ -947,69 +1008,73 @@ Film::isdcf_name (bool if_created_now) const
 
        auto ch = audio_channel_types (mapped, audio_channels());
        if (!ch.first && !ch.second) {
-               d += "_MOS";
+               isdcf_name += "_MOS";
        } else if (ch.first) {
-               d += String::compose("_%1%2", ch.first, ch.second);
+               isdcf_name += String::compose("_%1%2", ch.first, ch.second);
        }
 
        if (audio_channels() > static_cast<int>(dcp::Channel::HI) && find(mapped.begin(), mapped.end(), static_cast<int>(dcp::Channel::HI)) != mapped.end()) {
-               d += "-HI";
+               isdcf_name += "-HI";
        }
        if (audio_channels() > static_cast<int>(dcp::Channel::VI) && find(mapped.begin(), mapped.end(), static_cast<int>(dcp::Channel::VI)) != mapped.end()) {
-               d += "-VI";
+               isdcf_name += "-VI";
        }
 
-       d += "_" + resolution_to_string (_resolution);
+       if (find_if(content_list.begin(), content_list.end(), [](shared_ptr<Content> c) { return static_cast<bool>(c->atmos); }) != content_list.end()) {
+               isdcf_name += "-IAB";
+       }
+
+       isdcf_name += "_" + resolution_to_string (_resolution);
 
-       if (!dm.studio.empty ()) {
-               d += "_" + dm.studio;
+       if (_studio && _studio->length() >= 2) {
+               isdcf_name += "_" + to_upper (_studio->substr(0, 4));
        }
 
        if (if_created_now) {
-               d += "_" + boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
+               isdcf_name += "_" + boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ());
        } else {
-               d += "_" + boost::gregorian::to_iso_string (_isdcf_date);
+               isdcf_name += "_" + boost::gregorian::to_iso_string (_isdcf_date);
        }
 
-       if (!dm.facility.empty ()) {
-               d += "_" + dm.facility;
+       if (_facility && _facility->length() >= 3) {
+               isdcf_name += "_" + to_upper(_facility->substr(0, 3));
        }
 
        if (_interop) {
-               d += "_IOP";
+               isdcf_name += "_IOP";
        } else {
-               d += "_SMPTE";
+               isdcf_name += "_SMPTE";
        }
 
        if (three_d ()) {
-               d += "-3D";
+               isdcf_name += "-3D";
        }
 
        auto vf = false;
-       for (auto i: content()) {
-               auto dc = dynamic_pointer_cast<const DCPContent>(i);
-               if (!dc) {
+       for (auto content: content_list) {
+               auto dcp = dynamic_pointer_cast<const DCPContent>(content);
+               if (!dcp) {
                        continue;
                }
 
                bool any_text = false;
-               for (int i = 0; i < TEXT_COUNT; ++i) {
-                       if (dc->reference_text(static_cast<TextType>(i))) {
+               for (int i = 0; i < static_cast<int>(TextType::COUNT); ++i) {
+                       if (dcp->reference_text(static_cast<TextType>(i))) {
                                any_text = true;
                        }
                }
-               if (dc->reference_video() || dc->reference_audio() || any_text) {
+               if (dcp->reference_video() || dcp->reference_audio() || any_text) {
                        vf = true;
                }
        }
 
        if (vf) {
-               d += "_VF";
+               isdcf_name += "_VF";
        } else {
-               d += "_OV";
+               isdcf_name += "_OV";
        }
 
-       return d;
+       return isdcf_name;
 }
 
 /** @return name to give the DCP */
@@ -1028,27 +1093,27 @@ void
 Film::set_directory (boost::filesystem::path d)
 {
        _directory = d;
-       _dirty = true;
+       set_dirty (true);
 }
 
 void
 Film::set_name (string n)
 {
-       ChangeSignaller<Film> ch (this, NAME);
+       FilmChangeSignaller ch(this, FilmProperty::NAME);
        _name = n;
 }
 
 void
 Film::set_use_isdcf_name (bool u)
 {
-       ChangeSignaller<Film> ch (this, USE_ISDCF_NAME);
+       FilmChangeSignaller ch(this, FilmProperty::USE_ISDCF_NAME);
        _use_isdcf_name = u;
 }
 
 void
 Film::set_dcp_content_type (DCPContentType const * t)
 {
-       ChangeSignaller<Film> ch (this, DCP_CONTENT_TYPE);
+       FilmChangeSignaller ch(this, FilmProperty::DCP_CONTENT_TYPE);
        _dcp_content_type = t;
 }
 
@@ -1060,7 +1125,7 @@ Film::set_dcp_content_type (DCPContentType const * t)
 void
 Film::set_container (Ratio const * c, bool explicit_user)
 {
-       ChangeSignaller<Film> ch (this, CONTAINER);
+       FilmChangeSignaller ch(this, FilmProperty::CONTAINER);
        _container = c;
 
        if (explicit_user) {
@@ -1076,7 +1141,7 @@ Film::set_container (Ratio const * c, bool explicit_user)
 void
 Film::set_resolution (Resolution r, bool explicit_user)
 {
-       ChangeSignaller<Film> ch (this, RESOLUTION);
+       FilmChangeSignaller ch(this, FilmProperty::RESOLUTION);
        _resolution = r;
 
        if (explicit_user) {
@@ -1088,17 +1153,10 @@ Film::set_resolution (Resolution r, bool explicit_user)
 void
 Film::set_j2k_bandwidth (int b)
 {
-       ChangeSignaller<Film> ch (this, J2K_BANDWIDTH);
+       FilmChangeSignaller ch(this, FilmProperty::J2K_BANDWIDTH);
        _j2k_bandwidth = b;
 }
 
-void
-Film::set_isdcf_metadata (ISDCFMetadata m)
-{
-       ChangeSignaller<Film> ch (this, ISDCF_METADATA);
-       _isdcf_metadata = m;
-}
-
 /** @param f New frame rate.
  *  @param user_explicit true if this comes from a direct user instruction, false if it is from
  *  DCP-o-matic being helpful.
@@ -1106,7 +1164,7 @@ Film::set_isdcf_metadata (ISDCFMetadata m)
 void
 Film::set_video_frame_rate (int f, bool user_explicit)
 {
-       ChangeSignaller<Film> ch (this, VIDEO_FRAME_RATE);
+       FilmChangeSignaller ch(this, FilmProperty::VIDEO_FRAME_RATE);
        _video_frame_rate = f;
        if (user_explicit) {
                _user_explicit_video_frame_rate = true;
@@ -1116,41 +1174,49 @@ Film::set_video_frame_rate (int f, bool user_explicit)
 void
 Film::set_audio_channels (int c)
 {
-       ChangeSignaller<Film> ch (this, AUDIO_CHANNELS);
+       FilmChangeSignaller ch(this, FilmProperty::AUDIO_CHANNELS);
        _audio_channels = c;
 }
 
 void
 Film::set_three_d (bool t)
 {
-       ChangeSignaller<Film> ch (this, THREE_D);
+       FilmChangeSignaller ch(this, FilmProperty::THREE_D);
        _three_d = t;
 
-       if (_three_d && _isdcf_metadata.two_d_version_of_three_d) {
-               ChangeSignaller<Film> ch (this, ISDCF_METADATA);
-               _isdcf_metadata.two_d_version_of_three_d = false;
+       if (_three_d && _two_d_version_of_three_d) {
+               set_two_d_version_of_three_d (false);
        }
 }
 
 void
 Film::set_interop (bool i)
 {
-       ChangeSignaller<Film> ch (this, INTEROP);
+       FilmChangeSignaller ch(this, FilmProperty::INTEROP);
        _interop = i;
 }
 
+
+void
+Film::set_limit_to_smpte_bv20(bool limit)
+{
+       FilmChangeSignaller ch(this, FilmProperty::LIMIT_TO_SMPTE_BV20);
+       _limit_to_smpte_bv20 = limit;
+}
+
+
 void
 Film::set_audio_processor (AudioProcessor const * processor)
 {
-       ChangeSignaller<Film> ch1 (this, AUDIO_PROCESSOR);
-       ChangeSignaller<Film> ch2 (this, AUDIO_CHANNELS);
+       FilmChangeSignaller ch1(this, FilmProperty::AUDIO_PROCESSOR);
+       FilmChangeSignaller ch2(this, FilmProperty::AUDIO_CHANNELS);
        _audio_processor = processor;
 }
 
 void
 Film::set_reel_type (ReelType t)
 {
-       ChangeSignaller<Film> ch (this, REEL_TYPE);
+       FilmChangeSignaller ch(this, FilmProperty::REEL_TYPE);
        _reel_type = t;
 }
 
@@ -1158,30 +1224,30 @@ Film::set_reel_type (ReelType t)
 void
 Film::set_reel_length (int64_t r)
 {
-       ChangeSignaller<Film> ch (this, REEL_LENGTH);
+       FilmChangeSignaller ch(this, FilmProperty::REEL_LENGTH);
        _reel_length = r;
 }
 
 void
 Film::set_reencode_j2k (bool r)
 {
-       ChangeSignaller<Film> ch (this, REENCODE_J2K);
+       FilmChangeSignaller ch(this, FilmProperty::REENCODE_J2K);
        _reencode_j2k = r;
 }
 
 void
 Film::signal_change (ChangeType type, int p)
 {
-       signal_change (type, static_cast<Property>(p));
+       signal_change(type, static_cast<FilmProperty>(p));
 }
 
 void
-Film::signal_change (ChangeType type, Property p)
+Film::signal_change(ChangeType type, FilmProperty p)
 {
-       if (type == CHANGE_TYPE_DONE) {
-               _dirty = true;
+       if (type == ChangeType::DONE) {
+               set_dirty (true);
 
-               if (p == Film::CONTENT) {
+               if (p == FilmProperty::CONTENT) {
                        if (!_user_explicit_video_frame_rate) {
                                set_video_frame_rate (best_video_frame_rate());
                        }
@@ -1189,7 +1255,7 @@ Film::signal_change (ChangeType type, Property p)
 
                emit (boost::bind (boost::ref (Change), type, p));
 
-               if (p == Film::VIDEO_FRAME_RATE || p == Film::SEQUENCE) {
+               if (p == FilmProperty::VIDEO_FRAME_RATE || p == FilmProperty::SEQUENCE) {
                        /* We want to call Playlist::maybe_sequence but this must happen after the
                           main signal emission (since the butler will see that emission and un-suspend itself).
                        */
@@ -1206,6 +1272,7 @@ Film::set_isdcf_date_today ()
        _isdcf_date = boost::gregorian::day_clock::local_day ();
 }
 
+
 boost::filesystem::path
 Film::j2c_path (int reel, Frame frame, Eyes eyes, bool tmp) const
 {
@@ -1217,9 +1284,9 @@ Film::j2c_path (int reel, Frame frame, Eyes eyes, bool tmp) const
        snprintf(buffer, sizeof(buffer), "%08d_%08" PRId64, reel, frame);
        string s (buffer);
 
-       if (eyes == EYES_LEFT) {
+       if (eyes == Eyes::LEFT) {
                s += ".L";
-       } else if (eyes == EYES_RIGHT) {
+       } else if (eyes == Eyes::RIGHT) {
                s += ".R";
        }
 
@@ -1233,12 +1300,6 @@ Film::j2c_path (int reel, Frame frame, Eyes eyes, bool tmp) const
        return file (p);
 }
 
-static
-bool
-cpl_summary_compare (CPLSummary const & a, CPLSummary const & b)
-{
-       return a.last_write_time > b.last_write_time;
-}
 
 /** Find all the DCPs in our directory that can be dcp::DCP::read() and return details of their CPLs.
  *  The list will be returned in reverse order of timestamp (i.e. most recent first).
@@ -1247,27 +1308,29 @@ vector<CPLSummary>
 Film::cpls () const
 {
        if (!directory ()) {
-               return vector<CPLSummary> ();
+               return {};
        }
 
        vector<CPLSummary> out;
 
        auto const dir = directory().get();
-       for (auto i: boost::filesystem::directory_iterator(dir)) {
+       for (auto const& item: dcp::filesystem::directory_iterator(dir)) {
                if (
-                       boost::filesystem::is_directory (i) &&
-                       i.path().leaf() != "j2c" && i.path().leaf() != "video" && i.path().leaf() != "info" && i.path().leaf() != "analysis"
+                       dcp::filesystem::is_directory(item) &&
+                       item.path().filename() != "j2c" && item.path().filename() != "video" && item.path().filename() != "info" && item.path().filename() != "analysis"
                        ) {
 
                        try {
-                               out.push_back (CPLSummary(i));
+                               out.push_back(CPLSummary(item));
                        } catch (...) {
 
                        }
                }
        }
 
-       sort (out.begin(), out.end(), cpl_summary_compare);
+       sort(out.begin(), out.end(), [](CPLSummary const& a, CPLSummary const& b) {
+               return a.last_write_time > b.last_write_time;
+       });
 
        return out;
 }
@@ -1275,7 +1338,7 @@ Film::cpls () const
 void
 Film::set_encrypted (bool e)
 {
-       ChangeSignaller<Film> ch (this, ENCRYPTED);
+       FilmChangeSignaller ch(this, FilmProperty::ENCRYPTED);
        _encrypted = e;
 }
 
@@ -1351,7 +1414,9 @@ Film::add_content (shared_ptr<Content> c)
 
        maybe_set_container_and_resolution ();
        if (c->atmos) {
-               set_audio_channels (14);
+               if (_audio_channels < 14) {
+                       set_audio_channels(14);
+               }
                set_interop (false);
        }
 }
@@ -1362,23 +1427,23 @@ Film::maybe_set_container_and_resolution ()
 {
        /* Get the only piece of video content, if there is only one */
        shared_ptr<VideoContent> video;
-       for (auto i: _playlist->content()) {
-               if (i->video) {
+       for (auto content: _playlist->content()) {
+               if (content->video) {
                        if (!video) {
-                               video = i->video;
+                               video = content->video;
                        } else {
                                video.reset ();
                        }
                }
        }
 
-       if (video) {
+       if (video && video->size()) {
                /* This is the only piece of video content in this Film.  Use it to make a guess for
                 * DCP container size and resolution, unless the user has already explicitly set these
                 * things.
                 */
                if (!_user_explicit_container) {
-                       if (video->size().ratio() > 2.3) {
+                       if (video->size()->ratio() > 2.3) {
                                set_container (Ratio::from_id("239"), false);
                        } else {
                                set_container (Ratio::from_id("185"), false);
@@ -1386,10 +1451,10 @@ Film::maybe_set_container_and_resolution ()
                }
 
                if (!_user_explicit_resolution) {
-                       if (video->size_after_crop().width > 2048 || video->size_after_crop().height > 1080) {
-                               set_resolution (RESOLUTION_4K, false);
+                       if (video->size_after_crop()->width > 2048 || video->size_after_crop()->height > 1080) {
+                               set_resolution (Resolution::FOUR_K, false);
                        } else {
-                               set_resolution (RESOLUTION_2K, false);
+                               set_resolution (Resolution::TWO_K, false);
                        }
                }
        }
@@ -1444,12 +1509,12 @@ void
 Film::playlist_content_change (ChangeType type, weak_ptr<Content> c, int p, bool frequent)
 {
        if (p == ContentProperty::VIDEO_FRAME_RATE) {
-               signal_change (type, Film::CONTENT);
+               signal_change(type, FilmProperty::CONTENT);
        } else if (p == AudioContentProperty::STREAMS) {
-               signal_change (type, Film::NAME);
+               signal_change(type, FilmProperty::NAME);
        }
 
-       if (type == CHANGE_TYPE_DONE) {
+       if (type == ChangeType::DONE) {
                emit (boost::bind (boost::ref (ContentChange), type, c, p, frequent));
                if (!frequent) {
                        check_settings_consistency ();
@@ -1458,7 +1523,7 @@ Film::playlist_content_change (ChangeType type, weak_ptr<Content> c, int p, bool
                ContentChange (type, c, p, frequent);
        }
 
-       _dirty = true;
+       set_dirty (true);
 }
 
 void
@@ -1470,14 +1535,14 @@ Film::playlist_length_change ()
 void
 Film::playlist_change (ChangeType type)
 {
-       signal_change (type, CONTENT);
-       signal_change (type, NAME);
+       signal_change(type, FilmProperty::CONTENT);
+       signal_change(type, FilmProperty::NAME);
 
-       if (type == CHANGE_TYPE_DONE) {
+       if (type == ChangeType::DONE) {
                check_settings_consistency ();
        }
 
-       _dirty = true;
+       set_dirty (true);
 }
 
 /** Check for (and if necessary fix) impossible settings combinations, like
@@ -1517,12 +1582,12 @@ Film::check_settings_consistency ()
                        d->set_reference_audio(false);
                        change_made = true;
                }
-               if (d->reference_text(TEXT_OPEN_SUBTITLE) && !d->can_reference_text(shared_from_this(), TEXT_OPEN_SUBTITLE, why_not)) {
-                       d->set_reference_text(TEXT_OPEN_SUBTITLE, false);
+               if (d->reference_text(TextType::OPEN_SUBTITLE) && !d->can_reference_text(shared_from_this(), TextType::OPEN_SUBTITLE, why_not)) {
+                       d->set_reference_text(TextType::OPEN_SUBTITLE, false);
                        change_made = true;
                }
-               if (d->reference_text(TEXT_CLOSED_CAPTION) && !d->can_reference_text(shared_from_this(), TEXT_CLOSED_CAPTION, why_not)) {
-                       d->set_reference_text(TEXT_CLOSED_CAPTION, false);
+               if (d->reference_text(TextType::CLOSED_CAPTION) && !d->can_reference_text(shared_from_this(), TextType::CLOSED_CAPTION, why_not)) {
+                       d->set_reference_text(TextType::CLOSED_CAPTION, false);
                        change_made = true;
                }
        }
@@ -1536,17 +1601,9 @@ void
 Film::playlist_order_changed ()
 {
        /* XXX: missing PENDING */
-       signal_change (CHANGE_TYPE_DONE, CONTENT_ORDER);
+       signal_change(ChangeType::DONE, FilmProperty::CONTENT_ORDER);
 }
 
-int
-Film::audio_frame_rate () const
-{
-       /* It seems that nobody makes 96kHz DCPs at the moment, so let's avoid them.
-          See #1436.
-       */
-       return 48000;
-}
 
 void
 Film::set_sequence (bool s)
@@ -1555,7 +1612,7 @@ Film::set_sequence (bool s)
                return;
        }
 
-       ChangeSignaller<Film> cc (this, SEQUENCE);
+       FilmChangeSignaller cc(this, FilmProperty::SEQUENCE);
        _sequence = s;
        _playlist->set_sequence (s);
 }
@@ -1565,9 +1622,9 @@ dcp::Size
 Film::full_frame () const
 {
        switch (_resolution) {
-       case RESOLUTION_2K:
+       case Resolution::TWO_K:
                return dcp::Size (2048, 1080);
-       case RESOLUTION_4K:
+       case Resolution::FOUR_K:
                return dcp::Size (4096, 2160);
        }
 
@@ -1592,9 +1649,10 @@ Film::active_area () const
 
        for (auto i: content()) {
                if (i->video) {
-                       dcp::Size s = i->video->scaled_size (frame);
-                       active.width = max(active.width, s.width);
-                       active.height = max(active.height, s.height);
+                       if (auto s = i->video->scaled_size(frame)) {
+                               active.width = max(active.width, s->width);
+                               active.height = max(active.height, s->height);
+                       }
                }
        }
 
@@ -1602,37 +1660,18 @@ Film::active_area () const
 }
 
 
-/** @param recipient KDM recipient certificate.
- *  @param trusted_devices Certificate thumbprints of other trusted devices (can be empty).
- *  @param cpl_file CPL filename.
+/*  @param cpl_file CPL filename.
  *  @param from KDM from time expressed as a local time with an offset from UTC.
  *  @param until KDM to time expressed as a local time with an offset from UTC.
- *  @param formulation KDM formulation to use.
- *  @param disable_forensic_marking_picture true to disable forensic marking of picture.
- *  @param disable_forensic_marking_audio if not set, don't disable forensic marking of audio.  If set to 0,
- *  disable all forensic marking; if set above 0, disable forensic marking above that channel.
  */
-dcp::EncryptedKDM
-Film::make_kdm (
-       dcp::Certificate recipient,
-       vector<string> trusted_devices,
-       boost::filesystem::path cpl_file,
-       dcp::LocalTime from,
-       dcp::LocalTime until,
-       dcp::Formulation formulation,
-       bool disable_forensic_marking_picture,
-       optional<int> disable_forensic_marking_audio
-       ) const
+dcp::DecryptedKDM
+Film::make_kdm(boost::filesystem::path cpl_file, dcp::LocalTime from, dcp::LocalTime until) const
 {
        if (!_encrypted) {
                throw runtime_error (_("Cannot make a KDM as this project is not encrypted."));
        }
 
        auto cpl = make_shared<dcp::CPL>(cpl_file);
-       auto signer = Config::instance()->signer_chain();
-       if (!signer->valid ()) {
-               throw InvalidSignerError ();
-       }
 
        /* Find keys that have been added to imported, encrypted DCP content */
        list<dcp::DecryptedKDMKey> imported_keys;
@@ -1647,31 +1686,31 @@ Film::make_kdm (
 
        map<shared_ptr<const dcp::ReelFileAsset>, dcp::Key> keys;
 
-       for (auto i: cpl->reel_file_assets()) {
-               if (!i->key_id()) {
+       for (auto asset: cpl->reel_file_assets()) {
+               if (!asset->encrypted()) {
                        continue;
                }
 
                /* Get any imported key for this ID */
                bool done = false;
-               for (auto j: imported_keys) {
-                       if (j.id() == i->key_id().get()) {
-                               LOG_GENERAL ("Using imported key for %1", i->key_id().get());
-                               keys[i] = j.key();
+               for (auto const& k: imported_keys) {
+                       if (k.id() == asset->key_id().get()) {
+                               LOG_GENERAL("Using imported key for %1", asset->key_id().get());
+                               keys[asset] = k.key();
                                done = true;
                        }
                }
 
                if (!done) {
                        /* No imported key; it must be an asset that we encrypted */
-                       LOG_GENERAL ("Using our own key for %1", i->key_id().get());
-                       keys[i] = key();
+                       LOG_GENERAL("Using our own key for %1", asset->key_id().get());
+                       keys[asset] = key();
                }
        }
 
        return dcp::DecryptedKDM (
                cpl->id(), keys, from, until, cpl->content_title_text(), cpl->content_title_text(), dcp::LocalTime().as_string()
-               ).encrypt (signer, recipient, trusted_devices, formulation, disable_forensic_marking_picture, disable_forensic_marking_audio);
+               );
 }
 
 
@@ -1698,19 +1737,19 @@ Film::should_be_enough_disk_space (double& required, double& available, bool& ca
        boost::filesystem::path test = internal_video_asset_dir() / "test";
        boost::filesystem::path test2 = internal_video_asset_dir() / "test2";
        can_hard_link = true;
-       auto f = fopen_boost (test, "w");
+       dcp::File f(test, "w");
        if (f) {
-               fclose (f);
+               f.close();
                boost::system::error_code ec;
-               boost::filesystem::create_hard_link (test, test2, ec);
+               dcp::filesystem::create_hard_link(test, test2, ec);
                if (ec) {
                        can_hard_link = false;
                }
-               boost::filesystem::remove (test);
-               boost::filesystem::remove (test2);
+               dcp::filesystem::remove(test);
+               dcp::filesystem::remove(test2);
        }
 
-       auto s = boost::filesystem::space (internal_video_asset_dir ());
+       auto s = dcp::filesystem::space(internal_video_asset_dir());
        required = double (required_disk_space ()) / 1073741824.0f;
        if (!can_hard_link) {
                required *= 2;
@@ -1734,7 +1773,7 @@ Film::audio_output_names () const
        vector<NamedChannel> n;
 
        for (int i = 0; i < audio_channels(); ++i) {
-               if (i != 8 && i != 9 && i != 15) {
+               if (Config::instance()->use_all_audio_channels() || (i != 8 && i != 9 && i != 15)) {
                        n.push_back (NamedChannel(short_audio_channel_name(i), i));
                }
        }
@@ -1767,10 +1806,10 @@ Film::reels () const
        auto const len = length();
 
        switch (reel_type ()) {
-       case REELTYPE_SINGLE:
+       case ReelType::SINGLE:
                p.push_back (DCPTimePeriod (DCPTime (), len));
                break;
-       case REELTYPE_BY_VIDEO_CONTENT:
+       case ReelType::BY_VIDEO_CONTENT:
        {
                /* Collect all reel boundaries */
                list<DCPTime> split_points;
@@ -1800,9 +1839,13 @@ Film::reels () const
                                last = t;
                        }
                }
+
+               if (!p.empty()) {
+                       p.back().to = split_points.back();
+               }
                break;
        }
-       case REELTYPE_BY_LENGTH:
+       case ReelType::BY_LENGTH:
        {
                DCPTime current;
                /* Integer-divide reel length by the size of one frame to give the number of frames per reel,
@@ -1834,7 +1877,7 @@ void
 Film::use_template (string name)
 {
        _template_film.reset (new Film (optional<boost::filesystem::path>()));
-       _template_film->read_metadata (Config::instance()->template_path (name));
+       _template_film->read_metadata (Config::instance()->template_read_path(name));
        _use_isdcf_name = _template_film->_use_isdcf_name;
        _dcp_content_type = _template_film->_dcp_content_type;
        _container = _template_film->_container;
@@ -1849,7 +1892,6 @@ Film::use_template (string name)
        _audio_processor = _template_film->_audio_processor;
        _reel_type = _template_film->_reel_type;
        _reel_length = _template_film->_reel_length;
-       _isdcf_metadata = _template_film->_isdcf_metadata;
 }
 
 pair<double, double>
@@ -1894,13 +1936,10 @@ Film::references_dcp_audio () const
 bool
 Film::contains_atmos_content () const
 {
-       for (auto i: _playlist->content()) {
-               if (i->atmos) {
-                       return true;
-               }
-       }
-
-       return false;
+       auto const content = _playlist->content();
+       return std::find_if(content.begin(), content.end(), [](shared_ptr<const Content> content) {
+               return static_cast<bool>(content->atmos);
+       }) != content.end();
 }
 
 
@@ -1909,10 +1948,10 @@ Film::closed_caption_tracks () const
 {
        list<DCPTextTrack> tt;
        for (auto i: content()) {
-               for (auto j: i->text) {
+               for (auto text: i->text) {
                        /* XXX: Empty DCPTextTrack ends up being a magic value here - the "unknown" or "not specified" track */
-                       auto dtt = j->dcp_track().get_value_or(DCPTextTrack());
-                       if (j->type() == TEXT_CLOSED_CAPTION && find(tt.begin(), tt.end(), dtt) == tt.end()) {
+                       auto dtt = text->dcp_track().get_value_or(DCPTextTrack());
+                       if (text->type() == TextType::CLOSED_CAPTION && find(tt.begin(), tt.end(), dtt) == tt.end()) {
                                tt.push_back (dtt);
                        }
                }
@@ -1924,14 +1963,15 @@ Film::closed_caption_tracks () const
 void
 Film::set_marker (dcp::Marker type, DCPTime time)
 {
-       ChangeSignaller<Film> ch (this, MARKERS);
+       FilmChangeSignaller ch(this, FilmProperty::MARKERS);
        _markers[type] = time;
 }
 
+
 void
 Film::unset_marker (dcp::Marker type)
 {
-       ChangeSignaller<Film> ch (this, MARKERS);
+       FilmChangeSignaller ch(this, FilmProperty::MARKERS);
        _markers.erase (type);
 }
 
@@ -1939,7 +1979,7 @@ Film::unset_marker (dcp::Marker type)
 void
 Film::clear_markers ()
 {
-       ChangeSignaller<Film> ch (this, MARKERS);
+       FilmChangeSignaller ch(this, FilmProperty::MARKERS);
        _markers.clear ();
 }
 
@@ -1947,14 +1987,14 @@ Film::clear_markers ()
 void
 Film::set_ratings (vector<dcp::Rating> r)
 {
-       ChangeSignaller<Film> ch (this, RATINGS);
+       FilmChangeSignaller ch(this, FilmProperty::RATINGS);
        _ratings = r;
 }
 
 void
 Film::set_content_versions (vector<string> v)
 {
-       ChangeSignaller<Film> ch (this, CONTENT_VERSIONS);
+       FilmChangeSignaller ch(this, FilmProperty::CONTENT_VERSIONS);
        _content_versions = v;
 }
 
@@ -1962,23 +2002,15 @@ Film::set_content_versions (vector<string> v)
 void
 Film::set_name_language (dcp::LanguageTag lang)
 {
-       ChangeSignaller<Film> ch (this, NAME_LANGUAGE);
+       FilmChangeSignaller ch(this, FilmProperty::NAME_LANGUAGE);
        _name_language = lang;
 }
 
 
 void
-Film::set_audio_language (dcp::LanguageTag lang)
-{
-       ChangeSignaller<Film> ch (this, AUDIO_LANGUAGE);
-       _audio_language = lang;
-}
-
-
-void
-Film::set_release_territory (dcp::LanguageTag::RegionSubtag region)
+Film::set_release_territory (optional<dcp::LanguageTag::RegionSubtag> region)
 {
-       ChangeSignaller<Film> ch (this, RELEASE_TERRITORY);
+       FilmChangeSignaller ch(this, FilmProperty::RELEASE_TERRITORY);
        _release_territory = region;
 }
 
@@ -1986,7 +2018,7 @@ Film::set_release_territory (dcp::LanguageTag::RegionSubtag region)
 void
 Film::set_status (dcp::Status s)
 {
-       ChangeSignaller<Film> ch (this, STATUS);
+       FilmChangeSignaller ch(this, FilmProperty::STATUS);
        _status = s;
 }
 
@@ -1994,63 +2026,48 @@ Film::set_status (dcp::Status s)
 void
 Film::set_version_number (int v)
 {
-       ChangeSignaller<Film> ch (this, VERSION_NUMBER);
+       FilmChangeSignaller ch(this, FilmProperty::VERSION_NUMBER);
        _version_number = v;
 }
 
 
 void
-Film::set_chain (string c)
+Film::set_chain (optional<string> c)
 {
-       ChangeSignaller<Film> ch (this, CHAIN);
+       FilmChangeSignaller ch(this, FilmProperty::CHAIN);
        _chain = c;
 }
 
 
 void
-Film::set_distributor (string d)
+Film::set_distributor (optional<string> d)
 {
-       ChangeSignaller<Film> ch (this, DISTRIBUTOR);
+       FilmChangeSignaller ch(this, FilmProperty::DISTRIBUTOR);
        _distributor = d;
 }
 
 
 void
-Film::set_luminance (dcp::Luminance l)
+Film::set_luminance (optional<dcp::Luminance> l)
 {
-       ChangeSignaller<Film> ch (this, LUMINANCE);
+       FilmChangeSignaller ch(this, FilmProperty::LUMINANCE);
        _luminance = l;
 }
 
 
 void
-Film::set_subtitle_language (dcp::LanguageTag language)
+Film::set_facility (optional<string> f)
 {
-       set_subtitle_languages ({language});
-}
-
-
-void
-Film::unset_subtitle_language ()
-{
-       ChangeSignaller<Film> ch (this, SUBTITLE_LANGUAGES);
-       _subtitle_languages.clear();
-}
-
-
-void
-Film::set_subtitle_languages (vector<dcp::LanguageTag> languages)
-{
-       ChangeSignaller<Film> ch (this, SUBTITLE_LANGUAGES);
-       _subtitle_languages = languages;
+       FilmChangeSignaller ch(this, FilmProperty::FACILITY);
+       _facility = f;
 }
 
 
 void
-Film::set_facility (string f)
+Film::set_studio (optional<string> s)
 {
-       ChangeSignaller<Film> ch (this, FACILITY);
-       _facility = f;
+       FilmChangeSignaller ch(this, FilmProperty::STUDIO);
+       _studio = s;
 }
 
 
@@ -2070,34 +2087,15 @@ Film::info_file_handle (DCPTimePeriod period, bool read) const
        return std::make_shared<InfoFileHandle>(_info_file_mutex, info_file(period), read);
 }
 
-InfoFileHandle::InfoFileHandle (boost::mutex& mutex, boost::filesystem::path file, bool read)
+InfoFileHandle::InfoFileHandle (boost::mutex& mutex, boost::filesystem::path path, bool read)
        : _lock (mutex)
-       , _file (file)
+       , _file(path, read ? "rb" : (dcp::filesystem::exists(path) ? "r+b" : "wb"))
 {
-       if (read) {
-               _handle = fopen_boost (file, "rb");
-               if (!_handle) {
-                       throw OpenFileError (file, errno, OpenFileError::READ);
-               }
-       } else {
-               auto const exists = boost::filesystem::exists (file);
-               if (exists) {
-                       _handle = fopen_boost (file, "r+b");
-               } else {
-                       _handle = fopen_boost (file, "wb");
-               }
-
-               if (!_handle) {
-                       throw OpenFileError (file, errno, exists ? OpenFileError::READ_WRITE : OpenFileError::WRITE);
-               }
+       if (!_file) {
+               throw OpenFileError(path, errno, read ? OpenFileError::READ : (dcp::filesystem::exists(path) ? OpenFileError::READ_WRITE : OpenFileError::WRITE));
        }
 }
 
-InfoFileHandle::~InfoFileHandle ()
-{
-       fclose (_handle);
-}
-
 
 /** Add FFOC and LFOC markers to a list if they are not already there */
 void
@@ -2111,3 +2109,124 @@ Film::add_ffoc_lfoc (Markers& markers) const
                markers[dcp::Marker::LFOC] = length() - DCPTime::from_frames(1, video_frame_rate());
        }
 }
+
+
+void
+Film::set_temp_version (bool t)
+{
+       FilmChangeSignaller ch(this, FilmProperty::TEMP_VERSION);
+       _temp_version = t;
+}
+
+
+void
+Film::set_pre_release (bool p)
+{
+       FilmChangeSignaller ch(this, FilmProperty::PRE_RELEASE);
+       _pre_release = p;
+}
+
+
+void
+Film::set_red_band (bool r)
+{
+       FilmChangeSignaller ch(this, FilmProperty::RED_BAND);
+       _red_band = r;
+}
+
+
+void
+Film::set_two_d_version_of_three_d (bool t)
+{
+       FilmChangeSignaller ch(this, FilmProperty::TWO_D_VERSION_OF_THREE_D);
+       _two_d_version_of_three_d = t;
+}
+
+
+void
+Film::set_audio_language (optional<dcp::LanguageTag> language)
+{
+       FilmChangeSignaller ch(this, FilmProperty::AUDIO_LANGUAGE);
+       _audio_language = language;
+}
+
+
+void
+Film::set_audio_frame_rate (int rate)
+{
+       FilmChangeSignaller ch(this, FilmProperty::AUDIO_FRAME_RATE);
+       _audio_frame_rate = rate;
+}
+
+
+bool
+Film::has_sign_language_video_channel () const
+{
+       return _audio_channels >= static_cast<int>(dcp::Channel::SIGN_LANGUAGE);
+}
+
+
+void
+Film::set_sign_language_video_language (optional<dcp::LanguageTag> lang)
+{
+       FilmChangeSignaller ch(this, FilmProperty::SIGN_LANGUAGE_VIDEO_LANGUAGE);
+       _sign_language_video_language = lang;
+}
+
+
+void
+Film::set_dirty (bool dirty)
+{
+       auto const changed = dirty != _dirty;
+       _dirty = dirty;
+       if (changed) {
+               emit (boost::bind(boost::ref(DirtyChange), _dirty));
+       }
+}
+
+
+/** @return true if the metadata was (probably) last written by a version earlier
+ *  than the given one; false if it definitely was not.
+ */
+bool
+Film::last_written_by_earlier_than(int major, int minor, int micro) const
+{
+       if (!_last_written_by) {
+               return true;
+       }
+
+       vector<string> parts;
+       boost::split(parts, *_last_written_by, boost::is_any_of("."));
+
+       if (parts.size() != 3) {
+               /* Not sure what's going on, so let's say it was written by an old version */
+               return true;
+       }
+
+       if (boost::ends_with(parts[2], "pre")) {
+               parts[2] = parts[2].substr(0, parts[2].length() - 3);
+       }
+
+       int our_major = dcp::raw_convert<int>(parts[0]);
+       int our_minor = dcp::raw_convert<int>(parts[1]);
+       int our_micro = dcp::raw_convert<int>(parts[2]);
+
+       if (our_major != major) {
+               return our_major < major;
+       }
+
+       if (our_minor != minor) {
+               return our_minor < minor;
+       }
+
+       return our_micro < micro;
+}
+
+
+void
+Film::set_territory_type(TerritoryType type)
+{
+       FilmChangeSignaller ch(this, FilmProperty::TERRITORY_TYPE);
+       _territory_type = type;
+}
+