2 Copyright (C) 2012-2014 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.
20 /** @file src/transcoder.cc
21 * @brief A class which takes a Film and some Options, then uses those to transcode the film.
23 * A decoder is selected according to the content type, and the encoder can be specified
24 * as a parameter to the constructor.
28 #include <boost/signals2.hpp>
29 #include "transcoder.h"
32 #include "video_decoder.h"
33 #include "audio_decoder.h"
41 using boost::shared_ptr;
42 using boost::weak_ptr;
43 using boost::dynamic_pointer_cast;
45 /** Construct a transcoder using a Decoder that we create and a supplied Encoder.
46 * @param f Film that we are transcoding.
47 * @param e Encoder to use.
49 Transcoder::Transcoder (shared_ptr<const Film> f, shared_ptr<Job> j)
51 , _player (f->make_player ())
52 , _writer (new Writer (f, j))
53 , _encoder (new Encoder (f, j, _writer))
64 DCPTime const frame = DCPTime::from_frames (1, _film->video_frame_rate ());
65 for (DCPTime t; t < _film->length(); t += frame) {
66 list<shared_ptr<PlayerVideo> > v = _player->get_video (t, true);
67 for (list<shared_ptr<PlayerVideo> >::const_iterator i = v.begin(); i != v.end(); ++i) {
68 _encoder->enqueue (*i);
70 _writer->write (_player->get_audio (t, frame, true));
71 _writer->write (_player->get_subtitles (t, frame, true));
78 _player->statistics().dump (_film->log ());
82 Transcoder::current_encoding_rate () const
84 return _encoder->current_encoding_rate ();
88 Transcoder::video_frames_out () const
90 return _encoder->video_frames_out ();