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
|
/*
Copyright (C) 2009-2016 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_disk_reader_h__
#define __ardour_disk_reader_h__
#include "ardour/disk_io.h"
namespace ARDOUR
{
class Playlist;
class AudioPlaylist;
class MidiPlaylist;
class LIBARDOUR_API DiskReader : public DiskIOProcessor
{
public:
DiskReader (Session&, std::string const & name, DiskIOProcessor::Flag f = DiskIOProcessor::Flag (0));
~DiskReader ();
bool set_name (std::string const & str);
static framecnt_t chunk_frames() { return _chunk_frames; }
static framecnt_t default_chunk_frames ();
static void set_chunk_frames (framecnt_t n) { _chunk_frames = n; }
void run (BufferSet& /*bufs*/, framepos_t /*start_frame*/, framepos_t /*end_frame*/, double speed, pframes_t /*nframes*/, bool /*result_required*/);
void silence (framecnt_t /*nframes*/, framepos_t /*start_frame*/);
bool configure_io (ChanCount in, ChanCount out);
bool can_support_io_configuration (const ChanCount& in, ChanCount& out) = 0;
ChanCount input_streams () const;
ChanCount output_streams() const;
void realtime_handle_transport_stopped ();
void realtime_locate ();
framecnt_t roll_delay() const { return _roll_delay; }
void set_roll_delay (framecnt_t);
virtual XMLNode& state (bool full);
int set_state (const XMLNode&, int version);
boost::shared_ptr<Playlist> playlist();
boost::shared_ptr<Playlist> get_playlist (DataType);
boost::shared_ptr<MidiPlaylist> midi_playlist();
boost::shared_ptr<AudioPlaylist> audio_playlist();
virtual void playlist_modified ();
virtual int use_playlist (boost::shared_ptr<Playlist>);
virtual int use_new_playlist () = 0;
virtual int use_copy_playlist () = 0;
PBD::Signal0<void> PlaylistChanged;
PBD::Signal0<void> AlignmentStyleChanged;
float buffer_load() const;
void move_processor_automation (boost::weak_ptr<Processor>, std::list<Evoral::RangeMove<framepos_t> > const &);
/** For non-butler contexts (allocates temporary working buffers)
*
* This accessible method has a default argument; derived classes
* must inherit the virtual method that we call which does NOT
* have a default argument, to avoid complications with inheritance
*/
int do_refill_with_alloc(bool partial_fill = true) {
return _do_refill_with_alloc (partial_fill);
}
bool pending_overwrite () const { return _pending_overwrite; }
virtual int find_and_use_playlist (std::string const &) = 0;
protected:
virtual int do_refill () = 0;
boost::shared_ptr<Playlist> _playlist;
virtual void playlist_changed (const PBD::PropertyChange&);
virtual void playlist_deleted (boost::weak_ptr<Playlist>);
virtual void playlist_ranges_moved (std::list< Evoral::RangeMove<framepos_t> > const &, bool);
private:
typedef std::map<DataType,boost::shared_ptr<Playlist> > Playlists;
/** The number of frames by which this diskstream's output should be delayed
with respect to the transport frame. This is used for latency compensation.
*/
framecnt_t _roll_delay;
Playlists _playlists;
framepos_t overwrite_frame;
off_t overwrite_offset;
bool _pending_overwrite;
bool overwrite_queued;
IOChange input_change_pending;
framecnt_t wrap_buffer_size;
framecnt_t speed_buffer_size;
framepos_t file_frame;
framepos_t playback_sample;
PBD::ScopedConnectionList playlist_connections;
virtual int _do_refill_with_alloc (bool partial_fill);
static framecnt_t _chunk_frames;
};
} // namespace
#endif /* __ardour_disk_reader_h__ */
|
