2 Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/dcp_encoder.cc
22 * @brief A class which takes a Film and some Options, then uses those to encode the film into a DCP.
24 * A decoder is selected according to the content type, and the encoder can be specified
25 * as a parameter to the constructor.
28 #include "dcp_encoder.h"
29 #include "j2k_encoder.h"
31 #include "video_decoder.h"
32 #include "audio_decoder.h"
36 #include "compose.hpp"
37 #include "referenced_reel_asset.h"
38 #include "text_content.h"
39 #include "player_video.h"
40 #include <boost/signals2.hpp>
41 #include <boost/foreach.hpp>
49 using boost::shared_ptr;
50 using boost::weak_ptr;
51 using boost::dynamic_pointer_cast;
52 using boost::optional;
53 #if BOOST_VERSION >= 106100
54 using namespace boost::placeholders;
56 using namespace dcpomatic;
58 /** Construct a DCP encoder.
59 * @param film Film that we are encoding.
60 * @param job Job that this encoder is being used in.
62 DCPEncoder::DCPEncoder (shared_ptr<const Film> film, weak_ptr<Job> job)
65 , _non_burnt_subtitles (false)
67 _player_video_connection = _player->Video.connect (bind (&DCPEncoder::video, this, _1, _2));
68 _player_audio_connection = _player->Audio.connect (bind (&DCPEncoder::audio, this, _1, _2));
69 _player_text_connection = _player->Text.connect (bind (&DCPEncoder::text, this, _1, _2, _3, _4));
70 _player_atmos_connection = _player->Atmos.connect (bind (&DCPEncoder::atmos, this, _1, _2, _3));
72 BOOST_FOREACH (shared_ptr<const Content> c, film->content ()) {
73 BOOST_FOREACH (shared_ptr<TextContent> i, c->text) {
74 if (i->use() && !i->burn()) {
75 _non_burnt_subtitles = true;
81 DCPEncoder::~DCPEncoder ()
83 /* We must stop receiving more video data before we die */
84 _player_video_connection.release ();
85 _player_audio_connection.release ();
86 _player_text_connection.release ();
87 _player_atmos_connection.release ();
93 _writer.reset (new Writer (_film, _job));
96 _j2k_encoder.reset (new J2KEncoder (_film, _writer));
97 _j2k_encoder->begin ();
100 shared_ptr<Job> job = _job.lock ();
101 DCPOMATIC_ASSERT (job);
102 job->sub (_("Encoding"));
105 if (_non_burnt_subtitles) {
106 list<shared_ptr<Font> > fonts = _player->get_subtitle_fonts ();
108 if (fonts.size() > 1 && _film->interop()) {
109 /* Interop will ignore second and subsequent <LoadFont>s so don't even
110 write them as they upset some validators.
112 shared_ptr<Font> first = fonts.front ();
114 fonts.push_back (first);
117 _writer->write (fonts);
120 while (!_player->pass ()) {}
122 BOOST_FOREACH (ReferencedReelAsset i, _player->get_reel_assets ()) {
127 _j2k_encoder->end ();
132 DCPEncoder::video (shared_ptr<PlayerVideo> data, DCPTime time)
134 if (!_film->three_d()) {
135 if (data->eyes() == EYES_LEFT) {
136 /* Use left-eye images for both eyes... */
137 data->set_eyes (EYES_BOTH);
138 } else if (data->eyes() == EYES_RIGHT) {
139 /* ...and discard the right */
144 _j2k_encoder->encode (data, time);
148 DCPEncoder::audio (shared_ptr<AudioBuffers> data, DCPTime time)
150 _writer->write (data, time);
152 shared_ptr<Job> job = _job.lock ();
153 DCPOMATIC_ASSERT (job);
154 job->set_progress (float(time.get()) / _film->length().get());
158 DCPEncoder::text (PlayerText data, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
160 if (type == TEXT_CLOSED_CAPTION || _non_burnt_subtitles) {
161 _writer->write (data, type, track, period);
167 DCPEncoder::atmos (shared_ptr<const dcp::AtmosFrame> data, DCPTime time, AtmosMetadata metadata)
169 _writer->write (data, time, metadata);
174 DCPEncoder::current_rate () const
177 return optional<float>();
180 return _j2k_encoder->current_encoding_rate ();
184 DCPEncoder::frames_done () const
190 return _j2k_encoder->video_frames_enqueued ();