2 Copyright (C) 2013-2014 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 #include <libcxml/cxml.h>
21 #include <dcp/raw_convert.h>
22 #include "sndfile_content.h"
23 #include "sndfile_decoder.h"
25 #include "compose.hpp"
32 using std::stringstream;
34 using boost::shared_ptr;
35 using dcp::raw_convert;
37 SndfileContent::SndfileContent (shared_ptr<const Film> f, boost::filesystem::path p)
42 , _audio_frame_rate (0)
47 SndfileContent::SndfileContent (shared_ptr<const Film> f, cxml::ConstNodePtr node, int version)
49 , AudioContent (f, node)
50 , _audio_mapping (node->node_child ("AudioMapping"), version)
52 _audio_channels = node->number_child<int> ("AudioChannels");
53 _audio_length = ContentTime (node->number_child<ContentTime::Type> ("AudioLength"));
54 _audio_frame_rate = node->number_child<int> ("AudioFrameRate");
58 SndfileContent::summary () const
60 /* Get the string() here so that the name does not have quotes around it */
61 return String::compose (_("%1 [audio]"), path_summary ());
65 SndfileContent::technical_summary () const
67 return Content::technical_summary() + " - "
68 + AudioContent::technical_summary ()
73 SndfileContent::information () const
75 if (_audio_frame_rate == 0) {
81 s << String::compose (
82 _("%1 channels, %2kHz, %3 samples"),
84 audio_frame_rate() / 1000.0,
85 audio_length().frames (audio_frame_rate ())
92 SndfileContent::valid_file (boost::filesystem::path f)
94 /* XXX: more extensions */
95 string ext = f.extension().string();
96 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
97 return (ext == ".wav" || ext == ".aif" || ext == ".aiff");
101 SndfileContent::examine (shared_ptr<Job> job)
103 job->set_progress_unknown ();
104 Content::examine (job);
106 SndfileDecoder dec (shared_from_this());
109 boost::mutex::scoped_lock lm (_mutex);
110 _audio_channels = dec.audio_channels ();
111 _audio_length = dec.audio_length ();
112 _audio_frame_rate = dec.audio_frame_rate ();
115 signal_changed (AudioContentProperty::AUDIO_CHANNELS);
116 signal_changed (AudioContentProperty::AUDIO_LENGTH);
117 signal_changed (AudioContentProperty::AUDIO_FRAME_RATE);
120 boost::mutex::scoped_lock lm (_mutex);
121 /* XXX: do this in signal_changed...? */
122 _audio_mapping = AudioMapping (_audio_channels);
123 _audio_mapping.make_default ();
126 signal_changed (AudioContentProperty::AUDIO_MAPPING);
130 SndfileContent::as_xml (xmlpp::Node* node) const
132 node->add_child("Type")->add_child_text ("Sndfile");
133 Content::as_xml (node);
134 AudioContent::as_xml (node);
136 node->add_child("AudioChannels")->add_child_text (raw_convert<string> (audio_channels ()));
137 node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio_length().get ()));
138 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio_frame_rate ()));
139 _audio_mapping.as_xml (node->add_child("AudioMapping"));
143 SndfileContent::full_length () const
145 shared_ptr<const Film> film = _film.lock ();
147 return DCPTime (audio_length(), film->active_frame_rate_change (position ()));
151 SndfileContent::set_audio_mapping (AudioMapping m)
154 boost::mutex::scoped_lock lm (_mutex);
158 AudioContent::set_audio_mapping (m);