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/*
Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "shuffler.h"
#include "content_video.h"
#include "dcpomatic_assert.h"
#include <boost/foreach.hpp>
#include <iostream>
using std::make_pair;
using boost::weak_ptr;
using boost::shared_ptr;
using boost::optional;
struct Comparator
{
bool operator()(Shuffler::Store const & a, Shuffler::Store const & b) {
if (a.second.frame != b.second.frame) {
return a.second.frame < b.second.frame;
}
return a.second.eyes < b.second.eyes;
}
};
void
Shuffler::video (weak_ptr<Piece> weak_piece, ContentVideo video)
{
/* Something has gong wrong if our store gets too big */
DCPOMATIC_ASSERT (_store.size() < 8);
/* We should only ever see 3D_LEFT / 3D_RIGHT */
DCPOMATIC_ASSERT (video.eyes == EYES_LEFT || video.eyes == EYES_RIGHT);
shared_ptr<Piece> piece = weak_piece.lock ();
DCPOMATIC_ASSERT (piece);
if (!_last && video.eyes == EYES_LEFT) {
/* We haven't seen anything since the last clear() and we have some eyes-left so assume everything is OK */
Video (weak_piece, video);
_last = video;
return;
}
_store.push_back (make_pair (weak_piece, video));
_store.sort (Comparator());
while (
!_store.empty() &&
_last &&
(
(_store.front().second.frame == _last->frame && _store.front().second.eyes == EYES_RIGHT && _last->eyes == EYES_LEFT) ||
(_store.front().second.frame == (_last->frame + 1) && _store.front().second.eyes == EYES_LEFT && _last->eyes == EYES_RIGHT)
)
) {
Video (_store.front().first, _store.front().second);
_last = _store.front().second;
_store.pop_front ();
}
}
void
Shuffler::clear ()
{
_store.clear ();
_last = optional<ContentVideo>();
}
void
Shuffler::flush ()
{
BOOST_FOREACH (Store i, _store) {
Video (i.first, i.second);
}
}
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