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"
23 #include "audio_content.h"
25 #include "compose.hpp"
28 #include "safe_stringstream.h"
29 #include "raw_convert.h"
30 #include <libcxml/cxml.h>
31 #include <libxml++/libxml++.h>
39 using boost::shared_ptr;
41 SndfileContent::SndfileContent (shared_ptr<const Film> film, boost::filesystem::path p)
44 audio.reset (new AudioContent (this));
47 SndfileContent::SndfileContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
48 : Content (film, node)
50 audio = AudioContent::from_xml (this, node);
56 node->number_child<int> ("AudioFrameRate"),
57 node->number_child<Frame> ("AudioLength"),
58 AudioMapping (node->node_child ("AudioMapping"), version)
66 SndfileContent::as_xml (xmlpp::Node* node) const
68 node->add_child("Type")->add_child_text ("Sndfile");
70 Content::as_xml (node);
74 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate ()));
75 node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio->stream()->length ()));
76 audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
82 SndfileContent::summary () const
84 /* Get the string() here so that the name does not have quotes around it */
85 return String::compose (_("%1 [audio]"), path_summary ());
89 SndfileContent::technical_summary () const
91 return Content::technical_summary() + " - "
92 + audio->technical_summary ()
97 SndfileContent::valid_file (boost::filesystem::path f)
99 /* XXX: more extensions */
100 string ext = f.extension().string();
101 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
102 return (ext == ".wav" || ext == ".w64" || ext == ".flac" || ext == ".aif" || ext == ".aiff");
106 SndfileContent::examine (shared_ptr<Job> job)
108 job->set_progress_unknown ();
109 Content::examine (job);
110 shared_ptr<AudioExaminer> ex (new SndfileExaminer (shared_from_this ()));
113 boost::mutex::scoped_lock lm (_mutex);
114 AudioStreamPtr as (new AudioStream (ex->audio_frame_rate(), ex->audio_length(), ex->audio_channels ()));
115 audio->set_stream (as);
116 AudioMapping m = as->mapping ();
117 film()->make_audio_mapping_default (m);
121 signal_changed (AudioContentProperty::STREAMS);
125 SndfileContent::full_length () const
127 FrameRateChange const frc (active_video_frame_rate(), film()->video_frame_rate());
128 return DCPTime::from_frames (audio->stream()->length() / frc.speed_up, audio->stream()->frame_rate ());