2 Copyright (C) 2013-2016 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 "sndfile_content.h"
21 #include "sndfile_decoder.h"
22 #include "sndfile_examiner.h"
24 #include "compose.hpp"
27 #include "safe_stringstream.h"
28 #include "raw_convert.h"
29 #include <libcxml/cxml.h>
30 #include <libxml++/libxml++.h>
38 using boost::shared_ptr;
40 SndfileContent::SndfileContent (shared_ptr<const Film> film, boost::filesystem::path p)
42 , AudioContent (film, p)
47 SndfileContent::SndfileContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
48 : Content (film, node)
49 , AudioContent (film, node)
50 , _audio_length (node->number_child<Frame> ("AudioLength"))
51 , _audio_stream (new AudioStream (node->number_child<int> ("AudioFrameRate"), AudioMapping (node->node_child ("AudioMapping"), version)))
57 SndfileContent::as_xml (xmlpp::Node* node) const
59 node->add_child("Type")->add_child_text ("Sndfile");
60 Content::as_xml (node);
61 AudioContent::as_xml (node);
62 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio_stream()->frame_rate ()));
63 audio_stream()->mapping().as_xml (node->add_child("AudioMapping"));
64 node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio_length ()));
69 SndfileContent::summary () const
71 /* Get the string() here so that the name does not have quotes around it */
72 return String::compose (_("%1 [audio]"), path_summary ());
76 SndfileContent::technical_summary () const
78 return Content::technical_summary() + " - "
79 + AudioContent::technical_summary ()
84 SndfileContent::valid_file (boost::filesystem::path f)
86 /* XXX: more extensions */
87 string ext = f.extension().string();
88 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
89 return (ext == ".wav" || ext == ".w64" || ext == ".flac" || ext == ".aif" || ext == ".aiff");
93 SndfileContent::examine (shared_ptr<Job> job)
95 job->set_progress_unknown ();
96 Content::examine (job);
97 shared_ptr<AudioExaminer> dec (new SndfileExaminer (shared_from_this ()));
98 take_from_audio_examiner (dec);
102 SndfileContent::take_from_audio_examiner (shared_ptr<AudioExaminer> examiner)
105 boost::mutex::scoped_lock lm (_mutex);
106 _audio_stream.reset (new AudioStream (examiner->audio_frame_rate(), examiner->audio_channels ()));
107 AudioMapping m = _audio_stream->mapping ();
108 film()->make_audio_mapping_default (m);
109 _audio_stream->set_mapping (m);
110 _audio_length = examiner->audio_length ();
113 signal_changed (AudioContentProperty::AUDIO_STREAMS);
117 SndfileContent::full_length () const
119 FrameRateChange const frc (audio_video_frame_rate(), film()->video_frame_rate());
120 return DCPTime::from_frames (audio_length() / frc.speed_up, audio_stream()->frame_rate ());
123 vector<AudioStreamPtr>
124 SndfileContent::audio_streams () const
126 vector<AudioStreamPtr> s;
127 s.push_back (_audio_stream);