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/*
Copyright (C) 2024 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 "video_encoder.h"
using std::shared_ptr;
using boost::optional;
VideoEncoder::VideoEncoder(shared_ptr<const Film> film, Writer& writer)
: _film(film)
, _writer(writer)
, _history(200)
{
}
void
VideoEncoder::encode(shared_ptr<PlayerVideo>, dcpomatic::DCPTime time)
{
_last_player_video_time = time;
}
/** @return Number of video frames that have been queued for encoding */
int
VideoEncoder::video_frames_enqueued() const
{
if (!_last_player_video_time) {
return 0;
}
return _last_player_video_time->frames_floor(_film->video_frame_rate());
}
/** @return an estimate of the current number of frames we are encoding per second,
* if known.
*/
optional<float>
VideoEncoder::current_encoding_rate() const
{
return _history.rate();
}
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