2 Copyright (C) 2009-2016 Paul Davis
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 #ifndef __ardour_disk_writer_h__
21 #define __ardour_disk_writer_h__
28 #include "ardour/disk_io.h"
29 #include "ardour/midi_buffer.h"
34 class AudioFileSource;
38 class LIBARDOUR_API DiskWriter : public DiskIOProcessor
41 DiskWriter (Session&, std::string const & name, DiskIOProcessor::Flag f = DiskIOProcessor::Flag (0));
44 bool set_name (std::string const & str);
45 std::string display_name() const { return std::string (_("writer")); }
47 virtual bool set_write_source_name (const std::string& str);
49 bool recordable() const { return _flags & Recordable; }
51 static framecnt_t chunk_frames() { return _chunk_frames; }
52 static framecnt_t default_chunk_frames ();
53 static void set_chunk_frames (framecnt_t n) { _chunk_frames = n; }
55 void run (BufferSet& /*bufs*/, framepos_t /*start_frame*/, framepos_t /*end_frame*/, double speed, pframes_t /*nframes*/, bool /*result_required*/);
56 void non_realtime_locate (framepos_t);
57 void realtime_handle_transport_stopped ();
59 virtual XMLNode& state (bool full);
60 int set_state (const XMLNode&, int version);
62 std::string write_source_name () const {
63 if (_write_source_name.empty()) {
66 return _write_source_name;
70 boost::shared_ptr<AudioFileSource> audio_write_source (uint32_t n=0) {
71 boost::shared_ptr<ChannelList> c = channels.reader();
73 return (*c)[n]->write_source;
76 return boost::shared_ptr<AudioFileSource>();
79 boost::shared_ptr<SMFSource> midi_write_source () { return _midi_write_source; }
81 virtual std::string steal_write_source_name ();
82 int use_new_write_source (DataType, uint32_t n = 0);
83 void reset_write_sources (bool, bool force = false);
85 AlignStyle alignment_style() const { return _alignment_style; }
86 AlignChoice alignment_choice() const { return _alignment_choice; }
87 void set_align_style (AlignStyle, bool force=false);
88 void set_align_choice (AlignChoice a, bool force=false);
90 PBD::Signal0<void> AlignmentStyleChanged;
92 void set_input_latency (framecnt_t);
93 framecnt_t input_latency () const { return _input_latency; }
95 bool configure_io (ChanCount in, ChanCount out);
97 std::list<boost::shared_ptr<Source> >& last_capture_sources () { return _last_capture_sources; }
99 bool record_enabled() const { return g_atomic_int_get (const_cast<gint*>(&_record_enabled)); }
100 bool record_safe () const { return g_atomic_int_get (const_cast<gint*>(&_record_safe)); }
101 virtual void set_record_enabled (bool yn);
102 virtual void set_record_safe (bool yn);
104 bool destructive() const { return _flags & Destructive; }
105 int set_destructive (bool yn);
106 int set_non_layered (bool yn);
107 bool can_become_destructive (bool& requires_bounce) const;
109 /** @return Start position of currently-running capture (in session frames) */
110 framepos_t current_capture_start() const { return capture_start_frame; }
111 framepos_t current_capture_end() const { return capture_start_frame + capture_captured; }
112 framepos_t get_capture_start_frame (uint32_t n = 0) const;
113 framecnt_t get_captured_frames (uint32_t n = 0) const;
115 float buffer_load() const;
117 virtual void request_input_monitoring (bool) {}
118 virtual void ensure_input_monitoring (bool) {}
120 framecnt_t capture_offset() const { return _capture_offset; }
121 virtual void set_capture_offset ();
123 int seek (framepos_t frame, bool complete_refill);
125 static PBD::Signal0<void> Overrun;
127 void set_note_mode (NoteMode m);
129 /** Emitted when some MIDI data has been received for recording.
130 * Parameter is the source that it is destined for.
131 * A caller can get a copy of the data with get_gui_feed_buffer ()
133 PBD::Signal1<void, boost::weak_ptr<MidiSource> > DataRecorded;
135 PBD::Signal0<void> RecordEnableChanged;
136 PBD::Signal0<void> RecordSafeChanged;
138 void check_record_status (framepos_t transport_frame, bool can_record);
140 void transport_looped (framepos_t transport_frame);
141 void transport_stopped_wallclock (struct tm&, time_t, bool abort);
143 void adjust_buffering ();
147 int do_flush (RunContext context, bool force = false);
149 void get_input_sources ();
150 void prepare_record_status (framepos_t /*capture_start_frame*/);
151 void set_align_style_from_io();
152 void setup_destructive_playlist ();
153 void use_destructive_playlist ();
154 void prepare_to_stop (framepos_t transport_pos, framepos_t audible_frame);
156 void engage_record_enable ();
157 void disengage_record_enable ();
158 void engage_record_safe ();
159 void disengage_record_safe ();
161 bool prep_record_enable ();
162 bool prep_record_disable ();
164 void calculate_record_range (
165 Evoral::OverlapType ot, framepos_t transport_frame, framecnt_t nframes,
166 framecnt_t& rec_nframes, framecnt_t& rec_offset
174 std::vector<CaptureInfo*> capture_info;
175 mutable Glib::Threads::Mutex capture_info_lock;
178 framecnt_t _input_latency;
179 gint _record_enabled;
181 framepos_t capture_start_frame;
182 framecnt_t capture_captured;
184 framecnt_t adjust_capture_position;
185 framecnt_t _capture_offset;
186 framepos_t first_recordable_frame;
187 framepos_t last_recordable_frame;
188 int last_possibly_recording;
189 AlignStyle _alignment_style;
190 AlignChoice _alignment_choice;
191 std::string _write_source_name;
192 boost::shared_ptr<SMFSource> _midi_write_source;
194 std::list<boost::shared_ptr<Source> > _last_capture_sources;
195 std::vector<boost::shared_ptr<AudioFileSource> > capturing_sources;
197 static framecnt_t _chunk_frames;
200 volatile gint _frames_pending_write;
201 volatile gint _num_captured_loops;
202 framepos_t _accumulated_capture_offset;
204 /** A buffer that we use to put newly-arrived MIDI data in for
205 the GUI to read (so that it can update itself).
207 MidiBuffer _gui_feed_buffer;
208 mutable Glib::Threads::Mutex _gui_feed_buffer_mutex;
210 void finish_capture (boost::shared_ptr<ChannelList> c);
215 #endif /* __ardour_disk_writer_h__ */