1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <libcxml/cxml.h>
#include "sndfile_content.h"
#include "sndfile_decoder.h"
#include "compose.hpp"
#include "job.h"
#include "i18n.h"
using std::string;
using std::stringstream;
using std::cout;
using boost::shared_ptr;
using boost::lexical_cast;
SndfileContent::SndfileContent (boost::filesystem::path f)
: Content (f)
, AudioContent (f)
, _audio_channels (0)
, _audio_length (0)
, _audio_frame_rate (0)
{
}
SndfileContent::SndfileContent (shared_ptr<const cxml::Node> node)
: Content (node)
, AudioContent (node)
{
_audio_channels = node->number_child<int> ("AudioChannels");
_audio_length = node->number_child<ContentAudioFrame> ("AudioLength");
_audio_frame_rate = node->number_child<int> ("AudioFrameRate");
}
string
SndfileContent::summary () const
{
return String::compose (_("Sound file: %1"), file().filename().string());
}
string
SndfileContent::information () const
{
if (_audio_frame_rate == 0) {
return "";
}
stringstream s;
s << String::compose (
_("%1 channels, %2kHz, %3 samples"),
audio_channels(),
content_audio_frame_rate() / 1000.0,
audio_length()
);
return s.str ();
}
bool
SndfileContent::valid_file (boost::filesystem::path f)
{
/* XXX: more extensions */
string ext = f.extension().string();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
return (ext == ".wav" || ext == ".aif" || ext == ".aiff");
}
shared_ptr<Content>
SndfileContent::clone () const
{
return shared_ptr<Content> (new SndfileContent (*this));
}
void
SndfileContent::examine (shared_ptr<Film> film, shared_ptr<Job> job, bool quick)
{
job->set_progress_unknown ();
Content::examine (film, job, quick);
SndfileDecoder dec (film, shared_from_this());
{
boost::mutex::scoped_lock lm (_mutex);
_audio_channels = dec.audio_channels ();
_audio_length = dec.audio_length ();
_audio_frame_rate = dec.audio_frame_rate ();
}
signal_changed (AudioContentProperty::AUDIO_CHANNELS);
signal_changed (AudioContentProperty::AUDIO_LENGTH);
signal_changed (AudioContentProperty::AUDIO_FRAME_RATE);
}
void
SndfileContent::as_xml (xmlpp::Node* node) const
{
node->add_child("Type")->add_child_text ("Sndfile");
Content::as_xml (node);
node->add_child("AudioChannels")->add_child_text (lexical_cast<string> (_audio_channels));
node->add_child("AudioLength")->add_child_text (lexical_cast<string> (_audio_length));
node->add_child("AudioFrameRate")->add_child_text (lexical_cast<string> (_audio_frame_rate));
}
int
SndfileContent::output_audio_frame_rate (shared_ptr<const Film>) const
{
/* Resample to a DCI-approved sample rate */
return dcp_audio_frame_rate (content_audio_frame_rate ());
}
Time
SndfileContent::length (shared_ptr<const Film> film) const
{
return film->audio_frames_to_time (audio_length ());
}
|
