Use make_shared<>.
[dcpomatic.git] / src / lib / film.cc
index 828313dcbbb9a012a3c1a0159bd618e59dde8e48..3378b2042818a4f716f589c3aef2655c310f3120 100644 (file)
@@ -1,19 +1,20 @@
 /*
     Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
@@ -41,7 +42,7 @@
 #include "environment_info.h"
 #include "raw_convert.h"
 #include "audio_processor.h"
-#include "md5_digester.h"
+#include "digester.h"
 #include "compose.hpp"
 #include "screen.h"
 #include "audio_content.h"
@@ -61,6 +62,8 @@
 #include <boost/filesystem.hpp>
 #include <boost/algorithm/string.hpp>
 #include <boost/foreach.hpp>
+#include <boost/make_shared.hpp>
+#include <boost/regex.hpp>
 #include <unistd.h>
 #include <stdexcept>
 #include <iostream>
@@ -87,6 +90,7 @@ using boost::weak_ptr;
 using boost::dynamic_pointer_cast;
 using boost::optional;
 using boost::is_any_of;
+using boost::make_shared;
 
 #define LOG_GENERAL(...) log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
 #define LOG_GENERAL_NC(...) log()->log (__VA_ARGS__, LogEntry::TYPE_GENERAL);
@@ -107,8 +111,13 @@ using boost::is_any_of;
  *
  * 32 -> 33
  * Changed <Period> to <Subtitle> in FFmpegSubtitleStream
+ * 33 -> 34
+ * Content only contains audio/subtitle-related tags if those things
+ * are present.
+ * 34 -> 35
+ * VideoFrameType in VideoContent is a string rather than an integer.
  */
-int const Film::current_state_version = 33;
+int const Film::current_state_version = 35;
 
 /** Construct a Film object in a given directory.
  *
@@ -126,7 +135,7 @@ Film::Film (boost::filesystem::path dir, bool log)
        , _j2k_bandwidth (Config::instance()->default_j2k_bandwidth ())
        , _isdcf_metadata (Config::instance()->default_isdcf_metadata ())
        , _video_frame_rate (24)
-       , _audio_channels (6)
+       , _audio_channels (Config::instance()->default_dcp_audio_channels ())
        , _three_d (false)
        , _sequence (true)
        , _interop (Config::instance()->default_interop ())
@@ -243,15 +252,14 @@ Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
 {
        boost::filesystem::path p = dir ("analysis");
 
-       MD5Digester digester;
+       Digester digester;
        BOOST_FOREACH (shared_ptr<Content> i, playlist->content ()) {
-               shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (i);
-               if (!ac) {
+               if (!i->audio) {
                        continue;
                }
 
-               digester.add (ac->digest ());
-               digester.add (ac->audio_mapping().digest ());
+               digester.add (i->digest ());
+               digester.add (i->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
@@ -259,7 +267,7 @@ Film::audio_analysis_path (shared_ptr<const Playlist> playlist) const
                           analysis at the plotting stage rather than having to
                           recompute it.
                        */
-                       digester.add (ac->audio_gain ());
+                       digester.add (i->audio->gain ());
                }
        }
 
@@ -312,21 +320,21 @@ Film::make_dcp ()
                throw MissingSettingError (_("name"));
        }
 
-       JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this())));
+       JobManager::instance()->add (make_shared<TranscodeJob> (shared_from_this()));
 }
 
 /** Start a job to send our DCP to the configured TMS */
 void
 Film::send_dcp_to_tms ()
 {
-       shared_ptr<Job> j (new UploadJob (shared_from_this()));
+       shared_ptr<Job> j = make_shared<UploadJob> (shared_from_this());
        JobManager::instance()->add (j);
 }
 
 shared_ptr<xmlpp::Document>
 Film::metadata () const
 {
-       shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
+       shared_ptr<xmlpp::Document> doc = make_shared<xmlpp::Document> ();
        xmlpp::Element* root = doc->create_root_node ("Metadata");
 
        root->add_child("Version")->add_child_text (raw_convert<string> (current_state_version));
@@ -505,9 +513,8 @@ Film::mapped_audio_channels () const
                }
        } else {
                BOOST_FOREACH (shared_ptr<Content> i, content ()) {
-                       shared_ptr<const AudioContent> ac = dynamic_pointer_cast<const AudioContent> (i);
-                       if (ac) {
-                               list<int> c = ac->audio_mapping().mapped_output_channels ();
+                       if (i->audio) {
+                               list<int> c = i->audio->mapping().mapped_output_channels ();
                                copy (c.begin(), c.end(), back_inserter (mapped));
                        }
                }
@@ -617,13 +624,12 @@ Film::isdcf_name (bool if_created_now) const
        if (dcp_content_type() && dcp_content_type()->libdcp_kind() != dcp::TRAILER) {
                Ratio const * content_ratio = 0;
                BOOST_FOREACH (shared_ptr<Content> i, content ()) {
-                       shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (i);
-                       if (vc) {
+                       if (i->video) {
                                /* Here's the first piece of video content */
-                               if (vc->scale().ratio ()) {
-                                       content_ratio = vc->scale().ratio ();
+                               if (i->video->scale().ratio ()) {
+                                       content_ratio = i->video->scale().ratio ();
                                } else {
-                                       content_ratio = Ratio::from_ratio (vc->video_size().ratio ());
+                                       content_ratio = Ratio::from_ratio (i->video->size().ratio ());
                                }
                                break;
                        }
@@ -640,18 +646,17 @@ Film::isdcf_name (bool if_created_now) const
 
                        bool burnt_in = true;
                        BOOST_FOREACH (shared_ptr<Content> i, content ()) {
-                               shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (i);
-                               if (!sc) {
+                               if (!i->subtitle) {
                                        continue;
                                }
 
-                               if (sc->use_subtitles() && !sc->burn_subtitles()) {
+                               if (i->subtitle->use() && !i->subtitle->burn()) {
                                        burnt_in = false;
                                }
                        }
 
                        string language = dm.subtitle_language;
-                       if (burnt_in) {
+                       if (burnt_in && language != "XX") {
                                transform (language.begin(), language.end(), language.begin(), ::tolower);
                        } else {
                                transform (language.begin(), language.end(), language.begin(), ::toupper);
@@ -891,7 +896,7 @@ Film::signal_changed (Property p)
 
        switch (p) {
        case Film::CONTENT:
-               set_video_frame_rate (_playlist->best_dcp_frame_rate ());
+               set_video_frame_rate (_playlist->best_video_frame_rate ());
                break;
        case Film::VIDEO_FRAME_RATE:
        case Film::SEQUENCE:
@@ -1000,7 +1005,7 @@ Film::content () const
 void
 Film::examine_content (shared_ptr<Content> c)
 {
-       shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c));
+       shared_ptr<Job> j = make_shared<ExamineContentJob> (shared_from_this(), c);
        JobManager::instance()->add (j);
 }
 
@@ -1011,7 +1016,7 @@ Film::examine_and_add_content (shared_ptr<Content> c)
                run_ffprobe (c->path(0), file ("ffprobe.log"), _log);
        }
 
-       shared_ptr<Job> j (new ExamineContentJob (shared_from_this(), c));
+       shared_ptr<Job> j = make_shared<ExamineContentJob> (shared_from_this(), c);
 
        _job_connections.push_back (
                j->Finished.connect (bind (&Film::maybe_add_content, this, weak_ptr<Job> (j), weak_ptr<Content> (c)))
@@ -1034,8 +1039,8 @@ Film::maybe_add_content (weak_ptr<Job> j, weak_ptr<Content> c)
        }
 
        add_content (content);
-       if (Config::instance()->automatic_audio_analysis() && dynamic_pointer_cast<AudioContent> (content)) {
-               shared_ptr<Playlist> playlist (new Playlist);
+       if (Config::instance()->automatic_audio_analysis() && content->audio) {
+               shared_ptr<Playlist> playlist = make_shared<Playlist> ();
                playlist->add (content);
                boost::signals2::connection c;
                JobManager::instance()->analyse_audio (
@@ -1049,9 +1054,9 @@ void
 Film::add_content (shared_ptr<Content> c)
 {
        /* Add {video,subtitle} content after any existing {video,subtitle} content */
-       if (dynamic_pointer_cast<VideoContent> (c)) {
+       if (c->video) {
                c->set_position (_playlist->video_end ());
-       } else if (dynamic_pointer_cast<SubtitleContent> (c)) {
+       } else if (c->subtitle) {
                c->set_position (_playlist->subtitle_end ());
        }
 
@@ -1086,7 +1091,7 @@ Film::length () const
 int
 Film::best_video_frame_rate () const
 {
-       return _playlist->best_dcp_frame_rate ();
+       return _playlist->best_video_frame_rate ();
 }
 
 FrameRateChange
@@ -1100,9 +1105,9 @@ Film::playlist_content_changed (weak_ptr<Content> c, int p, bool frequent)
 {
        _dirty = true;
 
-       if (p == VideoContentProperty::VIDEO_FRAME_RATE) {
-               set_video_frame_rate (_playlist->best_dcp_frame_rate ());
-       } else if (p == AudioContentProperty::AUDIO_STREAMS) {
+       if (p == ContentProperty::VIDEO_FRAME_RATE) {
+               set_video_frame_rate (_playlist->best_video_frame_rate ());
+       } else if (p == AudioContentProperty::STREAMS) {
                signal_changed (NAME);
        }
 
@@ -1126,8 +1131,7 @@ int
 Film::audio_frame_rate () const
 {
        BOOST_FOREACH (shared_ptr<Content> i, content ()) {
-               shared_ptr<AudioContent> a = dynamic_pointer_cast<AudioContent> (i);
-               if (a && a->has_rate_above_48k ()) {
+               if (i->audio && i->audio->has_rate_above_48k ()) {
                        return 96000;
                }
        }
@@ -1178,14 +1182,14 @@ Film::make_kdm (
        dcp::Formulation formulation
        ) const
 {
-       shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
+       shared_ptr<const dcp::CPL> cpl = make_shared<dcp::CPL> (cpl_file);
        shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
        if (!signer->valid ()) {
                throw InvalidSignerError ();
        }
 
        return dcp::DecryptedKDM (
-               cpl, key(), from, until, "DCP-o-matic", cpl->content_title_text(), dcp::LocalTime().as_string()
+               cpl, key(), from, until, cpl->content_title_text(), cpl->content_title_text(), dcp::LocalTime().as_string()
                ).encrypt (signer, recipient, trusted_devices, formulation);
 }
 
@@ -1272,9 +1276,8 @@ Film::subtitle_language () const
 
        ContentList cl = content ();
        BOOST_FOREACH (shared_ptr<Content>& c, cl) {
-               shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c);
-               if (sc) {
-                       languages.insert (sc->subtitle_language ());
+               if (c->subtitle) {
+                       languages.insert (c->subtitle->language ());
                }
        }
 
@@ -1292,18 +1295,44 @@ Film::subtitle_language () const
 
 /** Change the gains of the supplied AudioMapping to make it a default
  *  for this film.  The defaults are guessed based on what processor (if any)
- *  is in use and the number of input channels.
+ *  is in use, the number of input channels and any filename supplied.
  */
 void
-Film::make_audio_mapping_default (AudioMapping& mapping) const
+Film::make_audio_mapping_default (AudioMapping& mapping, optional<boost::filesystem::path> filename) const
 {
+       static string const regex[] = {
+               ".*[\\._-]L[\\._-].*",
+               ".*[\\._-]R[\\._-].*",
+               ".*[\\._-]C[\\._-].*",
+               ".*[\\._-]Lfe[\\._-].*",
+               ".*[\\._-]Ls[\\._-].*",
+               ".*[\\._-]Rs[\\._-].*"
+       };
+
+       static int const regexes = sizeof(regex) / sizeof(*regex);
+
        if (audio_processor ()) {
                audio_processor()->make_audio_mapping_default (mapping);
        } else {
                mapping.make_zero ();
                if (mapping.input_channels() == 1) {
-                       /* Mono -> Centre */
-                       mapping.set (0, static_cast<int> (dcp::CENTRE), 1);
+                       bool guessed = false;
+
+                       /* See if we can guess where this stream should go */
+                       if (filename) {
+                               for (int i = 0; i < regexes; ++i) {
+                                       boost::regex e (regex[i], boost::regex::icase);
+                                       if (boost::regex_match (filename->string(), e) && i < mapping.output_channels()) {
+                                               mapping.set (0, i, 1);
+                                               guessed = true;
+                                       }
+                               }
+                       }
+
+                       if (!guessed) {
+                               /* If we have no idea, just put it on centre */
+                               mapping.set (0, static_cast<int> (dcp::CENTRE), 1);
+                       }
                } else {
                        /* 1:1 mapping */
                        for (int i = 0; i < min (mapping.input_channels(), mapping.output_channels()); ++i) {
@@ -1377,18 +1406,17 @@ Film::reels () const
        case REELTYPE_BY_VIDEO_CONTENT:
        {
                optional<DCPTime> last_split;
-               shared_ptr<VideoContent> last_video;
+               shared_ptr<Content> last_video;
                ContentList cl = content ();
                BOOST_FOREACH (shared_ptr<Content> c, content ()) {
-                       shared_ptr<VideoContent> v = dynamic_pointer_cast<VideoContent> (c);
-                       if (v) {
-                               BOOST_FOREACH (DCPTime t, v->reel_split_points()) {
+                       if (c->video) {
+                               BOOST_FOREACH (DCPTime t, c->reel_split_points()) {
                                        if (last_split) {
                                                p.push_back (DCPTimePeriod (last_split.get(), t));
                                        }
                                        last_split = t;
                                }
-                               last_video = v;
+                               last_video = c;
                        }
                }