2 Copyright (C) 2013 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 "sndfile_content.h"
22 #include "sndfile_decoder.h"
23 #include "compose.hpp"
29 using std::stringstream;
31 using boost::shared_ptr;
32 using boost::lexical_cast;
34 SndfileContent::SndfileContent (boost::filesystem::path f)
39 , _audio_frame_rate (0)
44 SndfileContent::SndfileContent (shared_ptr<const cxml::Node> node)
48 _audio_channels = node->number_child<int> ("AudioChannels");
49 _audio_length = node->number_child<ContentAudioFrame> ("AudioLength");
50 _audio_frame_rate = node->number_child<int> ("AudioFrameRate");
54 SndfileContent::summary () const
56 return String::compose (_("Sound file: %1"), file().filename().string());
60 SndfileContent::information () const
62 if (_audio_frame_rate == 0) {
68 s << String::compose (
69 _("%1 channels, %2kHz, %3 samples"),
71 audio_frame_rate() / 1000.0,
79 SndfileContent::valid_file (boost::filesystem::path f)
81 /* XXX: more extensions */
82 string ext = f.extension().string();
83 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
84 return (ext == ".wav" || ext == ".aif" || ext == ".aiff");
88 SndfileContent::clone () const
90 return shared_ptr<Content> (new SndfileContent (*this));
94 SndfileContent::examine (shared_ptr<Film> film, shared_ptr<Job> job, bool quick)
96 job->set_progress_unknown ();
97 Content::examine (film, job, quick);
99 SndfileDecoder dec (film, shared_from_this());
102 boost::mutex::scoped_lock lm (_mutex);
103 _audio_channels = dec.audio_channels ();
104 _audio_length = dec.audio_length ();
105 _audio_frame_rate = dec.audio_frame_rate ();
108 signal_changed (AudioContentProperty::AUDIO_CHANNELS);
109 signal_changed (AudioContentProperty::AUDIO_LENGTH);
110 signal_changed (AudioContentProperty::AUDIO_FRAME_RATE);
114 SndfileContent::as_xml (xmlpp::Node* node) const
116 node->add_child("Type")->add_child_text ("Sndfile");
117 Content::as_xml (node);
118 node->add_child("AudioChannels")->add_child_text (lexical_cast<string> (_audio_channels));
119 node->add_child("AudioLength")->add_child_text (lexical_cast<string> (_audio_length));
120 node->add_child("AudioFrameRate")->add_child_text (lexical_cast<string> (_audio_frame_rate));