2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <boost/shared_ptr.hpp>
22 #include "ab_transcoder.h"
29 #include "delay_line.h"
33 /** @file src/ab_transcoder.cc
34 * @brief A transcoder which uses one Film for the left half of the screen, and a different one
35 * for the right half (to facilitate A/B comparisons of settings)
39 using boost::shared_ptr;
40 using boost::dynamic_pointer_cast;
42 /** @param a Film to use for the left half of the screen.
43 * @param b Film to use for the right half of the screen.
44 * @param o Decoder options.
45 * @param j Job that we are associated with.
46 * @param e Encoder to use.
49 ABTranscoder::ABTranscoder (shared_ptr<Film> a, shared_ptr<Film> b, shared_ptr<Job> j)
52 , _player_a (_film_a->player ())
53 , _player_b (_film_b->player ())
55 , _encoder (new Encoder (_film_a))
56 , _combiner (new Combiner (a->log()))
58 _matcher.reset (new Matcher (_film_a->log(), _film_a->audio_frame_rate(), _film_a->video_frame_rate()));
59 _delay_line.reset (new DelayLine (_film_a->log(), _film_a->audio_delay() * _film_a->audio_frame_rate() / 1000));
60 _gain.reset (new Gain (_film_a->log(), _film_a->audio_gain()));
62 _player_a->Video.connect (bind (&Combiner::process_video, _combiner, _1, _2, _3, _4));
63 _player_b->Video.connect (bind (&Combiner::process_video_b, _combiner, _1, _2, _3, _4));
65 _combiner->connect_video (_delay_line);
66 _delay_line->connect_video (_matcher);
67 _matcher->connect_video (_encoder);
69 _player_a->connect_audio (_delay_line);
70 _delay_line->connect_audio (_matcher);
71 _matcher->connect_audio (_gain);
72 _gain->connect_audio (_encoder);
78 _encoder->process_begin ();
80 bool done[2] = { false, false };
83 done[0] = _player_a->pass ();
84 done[1] = _player_b->pass ();
87 _player_a->set_progress (_job);
90 if (done[0] && done[1]) {
96 _delay_line->process_end ();
99 _matcher->process_end ();
102 _gain->process_end ();
104 _encoder->process_end ();