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 "subtitle_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)
59 , _writer (new Writer (film, job))
60 , _j2k_encoder (new J2KEncoder (film, _writer))
62 , _non_burnt_subtitles (false)
64 BOOST_FOREACH (shared_ptr<const Content> c, _film->content ()) {
65 if (c->subtitle && c->subtitle->use() && !c->subtitle->burn()) {
66 _non_burnt_subtitles = true;
71 DCPEncoder::~DCPEncoder ()
73 /* We must stop receiving more video data before we die */
74 _player_video_connection.release ();
75 _player_audio_connection.release ();
76 _player_subtitle_connection.release ();
83 _j2k_encoder->begin ();
86 shared_ptr<Job> job = _job.lock ();
87 DCPOMATIC_ASSERT (job);
88 job->sub (_("Encoding"));
91 if (_non_burnt_subtitles) {
92 _writer->write (_player->get_subtitle_fonts ());
95 while (!_player->pass ()) {}
97 BOOST_FOREACH (ReferencedReelAsset i, _player->get_reel_assets ()) {
102 _j2k_encoder->end ();
107 DCPEncoder::video (shared_ptr<PlayerVideo> data, DCPTime time)
109 if (!_film->three_d() && data->eyes() == EYES_LEFT) {
110 /* Use left-eye images for both eyes */
111 data->set_eyes (EYES_BOTH);
114 _j2k_encoder->encode (data, time);
118 DCPEncoder::audio (shared_ptr<AudioBuffers> data, DCPTime time)
120 _writer->write (data);
122 shared_ptr<Job> job = _job.lock ();
123 DCPOMATIC_ASSERT (job);
124 job->set_progress (float(time.get()) / _film->length().get());
128 DCPEncoder::subtitle (PlayerSubtitles data, DCPTimePeriod period)
130 if (_non_burnt_subtitles) {
131 _writer->write (data, period);
136 DCPEncoder::current_rate () const
138 return _j2k_encoder->current_encoding_rate ();
142 DCPEncoder::frames_done () const
144 return _j2k_encoder->video_frames_enqueued ();