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
|
/*
Copyright (C) 2012 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.
*/
#ifndef LIBDCP_SOUND_ASSET_H
#define LIBDCP_SOUND_ASSET_H
/** @file src/sound_asset.h
* @brief An asset made up of PCM audio data files
*/
#include "mxf_asset.h"
#include "types.h"
#include "metadata.h"
namespace libdcp
{
class SoundFrame;
class SoundAsset;
class SoundAssetWriter
{
public:
void write (float const * const *, int);
void finalize ();
private:
friend class SoundAsset;
SoundAssetWriter (SoundAsset *);
/* no copy construction */
SoundAssetWriter (SoundAssetWriter const &);
SoundAssetWriter& operator= (SoundAssetWriter const &);
void write_current_frame ();
/* do this with an opaque pointer so we don't have to include
ASDCP headers
*/
struct ASDCPState;
boost::shared_ptr<ASDCPState> _state;
SoundAsset* _asset;
bool _finalized;
int _frames_written;
int _frame_buffer_offset;
};
/** @brief An asset made up of WAV files */
class SoundAsset : public MXFAsset
{
public:
SoundAsset (boost::filesystem::path directory, boost::filesystem::path mxf_name);
void read ();
void create (std::vector<boost::filesystem::path> const & files);
void create (boost::function<boost::filesystem::path (Channel)> get_path);
boost::shared_ptr<SoundAssetWriter> start_write ();
bool equals (boost::shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, std::string)> note) const;
boost::shared_ptr<const SoundFrame> get_frame (int n) const;
void set_channels (int c) {
_channels = c;
}
int channels () const {
return _channels;
}
void set_sampling_rate (int s) {
_sampling_rate = s;
}
int sampling_rate () const {
return _sampling_rate;
}
private:
std::string key_type () const;
void construct (boost::function<boost::filesystem::path (Channel)> get_path);
boost::filesystem::path path_from_channel (Channel channel, std::vector<boost::filesystem::path> const & files);
std::string cpl_node_name () const;
/** Number of channels in the asset */
int _channels;
int _sampling_rate;
};
}
#endif
|
