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 #include "audio_decoder.h"
21 #include "audio_buffers.h"
22 #include "exceptions.h"
27 using std::stringstream;
31 using boost::optional;
32 using boost::shared_ptr;
34 AudioDecoder::AudioDecoder (shared_ptr<const Film> f)
36 , _next_audio_frame (0)
42 AudioDecoder::process_end ()
46 shared_ptr<const Film> film = _film.lock ();
49 shared_ptr<AudioBuffers> out (new AudioBuffers (film->audio_mapping().dcp_channels(), 256));
52 int const frames = swr_convert (_swr_context, (uint8_t **) out->data(), 256, 0, 0);
55 throw EncodeError (_("could not run sample-rate converter"));
62 out->set_frames (frames);
71 AudioDecoder::audio (shared_ptr<const AudioBuffers> data, AudioContent::Frame frame)
74 _next_audio_frame = frame + data->frames ();