2 Copyright (C) 2012-2017 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 "caption_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;
53 /** Construct a DCP encoder.
54 * @param film Film that we are encoding.
55 * @param job Job that this encoder is being used in.
57 DCPEncoder::DCPEncoder (shared_ptr<const Film> film, weak_ptr<Job> job)
60 , _non_burnt_subtitles (false)
62 _player_video_connection = _player->Video.connect (bind (&DCPEncoder::video, this, _1, _2));
63 _player_audio_connection = _player->Audio.connect (bind (&DCPEncoder::audio, this, _1, _2));
64 _player_caption_connection = _player->Caption.connect (bind (&DCPEncoder::caption, this, _1, _2, _3));
66 BOOST_FOREACH (shared_ptr<const Content> c, film->content ()) {
67 BOOST_FOREACH (shared_ptr<CaptionContent> i, c->caption) {
68 if (i->use() && !i->burn()) {
69 _non_burnt_subtitles = true;
75 DCPEncoder::~DCPEncoder ()
77 /* We must stop receiving more video data before we die */
78 _player_video_connection.release ();
79 _player_audio_connection.release ();
80 _player_caption_connection.release ();
86 _writer.reset (new Writer (_film, _job));
89 _j2k_encoder.reset (new J2KEncoder (_film, _writer));
90 _j2k_encoder->begin ();
93 shared_ptr<Job> job = _job.lock ();
94 DCPOMATIC_ASSERT (job);
95 job->sub (_("Encoding"));
98 if (_non_burnt_subtitles) {
99 list<shared_ptr<Font> > fonts = _player->get_subtitle_fonts ();
101 if (fonts.size() > 1 && _film->interop()) {
102 /* Interop will ignore second and subsequent <LoadFont>s so don't even
103 write them as they upset some validators.
105 shared_ptr<Font> first = fonts.front ();
107 fonts.push_back (first);
110 _writer->write (fonts);
113 while (!_player->pass ()) {}
115 BOOST_FOREACH (ReferencedReelAsset i, _player->get_reel_assets ()) {
120 _j2k_encoder->end ();
125 DCPEncoder::video (shared_ptr<PlayerVideo> data, DCPTime time)
127 if (!_film->three_d() && data->eyes() == EYES_LEFT) {
128 /* Use left-eye images for both eyes */
129 data->set_eyes (EYES_BOTH);
132 _j2k_encoder->encode (data, time);
136 DCPEncoder::audio (shared_ptr<AudioBuffers> data, DCPTime time)
138 _writer->write (data, time);
140 shared_ptr<Job> job = _job.lock ();
141 DCPOMATIC_ASSERT (job);
142 job->set_progress (float(time.get()) / _film->length().get());
146 DCPEncoder::caption (PlayerCaption data, CaptionType type, DCPTimePeriod period)
148 if (type == CAPTION_CLOSED || _non_burnt_subtitles) {
149 _writer->write (data, type, period);
154 DCPEncoder::current_rate () const
160 return _j2k_encoder->current_encoding_rate ();
164 DCPEncoder::frames_done () const
170 return _j2k_encoder->video_frames_enqueued ();