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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
Copyright (C) 2000 Paul Davis
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 __ardour_audio_source_h__
#define __ardour_audio_source_h__
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <time.h>
#include <glibmm/thread.h>
#include <glibmm/ustring.h>
#include <sigc++/signal.h>
#include "ardour/source.h"
#include "ardour/ardour.h"
#include "pbd/stateful.h"
#include "pbd/xml++.h"
namespace ARDOUR {
class AudioSource : virtual public Source,
public ARDOUR::Readable,
public boost::enable_shared_from_this<ARDOUR::AudioSource>
{
public:
AudioSource (Session&, Glib::ustring name);
AudioSource (Session&, const XMLNode&);
virtual ~AudioSource ();
nframes64_t readable_length() const { return _length; }
uint32_t n_channels() const { return 1; }
sframes_t length (sframes_t pos) const;
void update_length (sframes_t pos, sframes_t cnt);
virtual nframes_t available_peaks (double zoom) const;
virtual nframes_t read (Sample *dst, sframes_t start, nframes_t cnt, int channel=0) const;
virtual nframes_t write (Sample *src, nframes_t cnt);
virtual float sample_rate () const = 0;
virtual void mark_streaming_write_completed () {}
virtual bool can_truncate_peaks() const { return true; }
void set_captured_for (Glib::ustring str) { _captured_for = str; }
Glib::ustring captured_for() const { return _captured_for; }
uint32_t read_data_count() const { return _read_data_count; }
uint32_t write_data_count() const { return _write_data_count; }
int read_peaks (PeakData *peaks, nframes_t npeaks,
sframes_t start, nframes_t cnt, double samples_per_visual_peak) const;
int build_peaks ();
bool peaks_ready (sigc::slot<void>, sigc::connection&) const;
mutable sigc::signal<void> PeaksReady;
mutable sigc::signal<void,nframes_t,nframes_t> PeakRangeReady;
XMLNode& get_state ();
int set_state (const XMLNode&, int version = 3000);
int rename_peakfile (Glib::ustring newpath);
void touch_peakfile ();
static void set_build_missing_peakfiles (bool yn) {
_build_missing_peakfiles = yn;
}
static void set_build_peakfiles (bool yn) {
_build_peakfiles = yn;
}
static bool get_build_peakfiles () {
return _build_peakfiles;
}
virtual int setup_peakfile () { return 0; }
int prepare_for_peakfile_writes ();
void done_with_peakfile_writes (bool done = true);
protected:
static bool _build_missing_peakfiles;
static bool _build_peakfiles;
sframes_t _length;
bool _peaks_built;
mutable Glib::Mutex _peaks_ready_lock;
Glib::ustring peakpath;
Glib::ustring _captured_for;
mutable uint32_t _read_data_count; // modified in read()
mutable uint32_t _write_data_count; // modified in write()
int initialize_peakfile (bool newfile, Glib::ustring path);
int build_peaks_from_scratch ();
int compute_and_write_peaks (Sample* buf, sframes_t first_frame, nframes_t cnt,
bool force, bool intermediate_peaks_ready_signal);
void truncate_peakfile();
mutable off_t _peak_byte_max; // modified in compute_and_write_peak()
virtual nframes_t read_unlocked (Sample *dst, sframes_t start, nframes_t cnt) const = 0;
virtual nframes_t write_unlocked (Sample *dst, nframes_t cnt) = 0;
virtual Glib::ustring peak_path(Glib::ustring audio_path) = 0;
virtual Glib::ustring find_broken_peakfile (Glib::ustring missing_peak_path,
Glib::ustring audio_path) = 0;
virtual int read_peaks_with_fpp (PeakData *peaks,
nframes_t npeaks, sframes_t start, nframes_t cnt,
double samples_per_visual_peak, nframes_t fpp) const;
int compute_and_write_peaks (Sample* buf, sframes_t first_frame, nframes_t cnt,
bool force, bool intermediate_peaks_ready_signal, nframes_t frames_per_peak);
private:
int peakfile;
nframes_t peak_leftover_cnt;
nframes_t peak_leftover_size;
Sample* peak_leftovers;
nframes_t peak_leftover_frame;
bool file_changed (Glib::ustring path);
};
}
#endif /* __ardour_audio_source_h__ */
|
