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.
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"
38 using boost::shared_ptr;
39 using boost::weak_ptr;
40 using boost::dynamic_pointer_cast;
43 video_proxy (weak_ptr<Encoder> encoder, shared_ptr<const Image> image, bool same)
45 shared_ptr<Encoder> e = encoder.lock ();
47 e->process_video (image, same);
52 audio_proxy (weak_ptr<Encoder> encoder, shared_ptr<const AudioBuffers> audio)
54 shared_ptr<Encoder> e = encoder.lock ();
56 e->process_audio (audio);
60 /** Construct a transcoder using a Decoder that we create and a supplied Encoder.
61 * @param f Film that we are transcoding.
62 * @param j Job that we are running under, or 0.
63 * @param e Encoder to use.
65 Transcoder::Transcoder (shared_ptr<const Film> f, shared_ptr<Job> j)
67 , _player (f->player ())
68 , _encoder (new Encoder (f, j))
70 _player->Video.connect (bind (video_proxy, _encoder, _1, _2));
71 _player->Audio.connect (bind (audio_proxy, _encoder, _1));
77 _encoder->process_begin ();
78 while (!_player->pass ()) {}
79 _encoder->process_end ();
83 Transcoder::current_encoding_rate () const
85 return _encoder->current_encoding_rate ();
89 Transcoder::video_frames_out () const
91 return _encoder->video_frames_out ();