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;
54 /** Construct a DCP encoder.
55 * @param film Film that we are encoding.
56 * @param job Job that this encoder is being used in.
58 DCPEncoder::DCPEncoder (shared_ptr<const Film> film, weak_ptr<Job> job)
61 , _non_burnt_subtitles (false)
63 _player_video_connection = _player->Video.connect (bind (&DCPEncoder::video, this, _1, _2));
64 _player_audio_connection = _player->Audio.connect (bind (&DCPEncoder::audio, this, _1, _2));
65 _player_text_connection = _player->Text.connect (bind (&DCPEncoder::text, this, _1, _2, _3, _4));
67 BOOST_FOREACH (shared_ptr<const Content> c, film->content ()) {
68 BOOST_FOREACH (shared_ptr<TextContent> i, c->text) {
69 if (i->use() && !i->burn()) {
70 _non_burnt_subtitles = true;
76 DCPEncoder::~DCPEncoder ()
78 /* We must stop receiving more video data before we die */
79 _player_video_connection.release ();
80 _player_audio_connection.release ();
81 _player_text_connection.release ();
87 _writer.reset (new Writer (_film, _job));
90 _j2k_encoder.reset (new J2KEncoder (_film, _writer));
91 _j2k_encoder->begin ();
94 shared_ptr<Job> job = _job.lock ();
95 DCPOMATIC_ASSERT (job);
96 job->sub (_("Encoding"));
99 if (_non_burnt_subtitles) {
100 list<shared_ptr<Font> > fonts = _player->get_subtitle_fonts ();
102 if (fonts.size() > 1 && _film->interop()) {
103 /* Interop will ignore second and subsequent <LoadFont>s so don't even
104 write them as they upset some validators.
106 shared_ptr<Font> first = fonts.front ();
108 fonts.push_back (first);
111 _writer->write (fonts);
114 while (!_player->pass ()) {}
116 BOOST_FOREACH (ReferencedReelAsset i, _player->get_reel_assets ()) {
121 _j2k_encoder->end ();
126 DCPEncoder::video (shared_ptr<PlayerVideo> data, DCPTime time)
128 if (!_film->three_d() && data->eyes() == EYES_LEFT) {
129 /* Use left-eye images for both eyes */
130 data->set_eyes (EYES_BOTH);
133 _j2k_encoder->encode (data, time);
137 DCPEncoder::audio (shared_ptr<AudioBuffers> data, DCPTime time)
139 _writer->write (data, time);
141 shared_ptr<Job> job = _job.lock ();
142 DCPOMATIC_ASSERT (job);
143 job->set_progress (float(time.get()) / _film->length().get());
147 DCPEncoder::text (PlayerText data, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
149 if (type == TEXT_CLOSED_CAPTION || _non_burnt_subtitles) {
150 _writer->write (data, type, track, period);
155 DCPEncoder::current_rate () const
161 return _j2k_encoder->current_encoding_rate ();
165 DCPEncoder::frames_done () const
171 return _j2k_encoder->video_frames_enqueued ();