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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <boost/shared_ptr.hpp>
#include "ab_transcoder.h"
#include "film.h"
#include "encoder.h"
#include "job.h"
#include "image.h"
#include "player.h"
#include "matcher.h"
#include "delay_line.h"
#include "gain.h"
#include "combiner.h"
/** @file src/ab_transcoder.cc
* @brief A transcoder which uses one Film for the left half of the screen, and a different one
* for the right half (to facilitate A/B comparisons of settings)
*/
using std::string;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
/** @param a Film to use for the left half of the screen.
* @param b Film to use for the right half of the screen.
* @param o Decoder options.
* @param j Job that we are associated with.
* @param e Encoder to use.
*/
ABTranscoder::ABTranscoder (shared_ptr<Film> a, shared_ptr<Film> b, shared_ptr<Job> j)
: _film_a (a)
, _film_b (b)
, _player_a (_film_a->player ())
, _player_b (_film_b->player ())
, _job (j)
, _encoder (new Encoder (_film_a))
, _combiner (new Combiner (a->log()))
{
_matcher.reset (new Matcher (_film_a->log(), _film_a->audio_frame_rate(), _film_a->video_frame_rate()));
_delay_line.reset (new DelayLine (_film_a->log(), _film_a->audio_delay() * _film_a->audio_frame_rate() / 1000));
_gain.reset (new Gain (_film_a->log(), _film_a->audio_gain()));
_player_a->Video.connect (bind (&Combiner::process_video, _combiner, _1, _2, _3, _4));
_player_b->Video.connect (bind (&Combiner::process_video_b, _combiner, _1, _2, _3, _4));
_combiner->connect_video (_delay_line);
_delay_line->connect_video (_matcher);
_matcher->connect_video (_encoder);
_player_a->connect_audio (_delay_line);
_delay_line->connect_audio (_matcher);
_matcher->connect_audio (_gain);
_gain->connect_audio (_encoder);
}
void
ABTranscoder::go ()
{
_encoder->process_begin ();
bool done[2] = { false, false };
while (1) {
done[0] = _player_a->pass ();
done[1] = _player_b->pass ();
if (_job) {
_player_a->set_progress (_job);
}
if (done[0] && done[1]) {
break;
}
}
if (_delay_line) {
_delay_line->process_end ();
}
if (_matcher) {
_matcher->process_end ();
}
if (_gain) {
_gain->process_end ();
}
_encoder->process_end ();
}
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