2 Copyright (C) 2006 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.
19 #ifndef __ardour_track_h__
20 #define __ardour_track_h__
22 #include <boost/shared_ptr.hpp>
24 #include "ardour/interthread_info.h"
25 #include "ardour/route.h"
26 #include "ardour/public_diskstream.h"
38 /** A track is an route (bus) with a recordable diskstream and
39 * related objects relevant to tracking, playback and editing.
41 * Specifically a track has regions and playlist objects.
43 class LIBARDOUR_API Track : public Route, public PublicDiskstream
46 Track (Session&, std::string name, Route::Flag f = Route::Flag (0), TrackMode m = Normal, DataType default_type = DataType::AUDIO);
51 bool set_name (const std::string& str);
52 void resync_track_name ();
54 TrackMode mode () const { return _mode; }
55 virtual int set_mode (TrackMode /*m*/) { return false; }
56 virtual bool can_use_mode (TrackMode /*m*/, bool& /*bounce_required*/) { return false; }
57 PBD::Signal0<void> TrackModeChanged;
59 class LIBARDOUR_API MonitoringControllable : public RouteAutomationControl {
61 MonitoringControllable (std::string name, boost::shared_ptr<Track>);
62 void set_value (double, PBD::Controllable::GroupControlDisposition group_override);
63 /* currently no automation, so no need for set_value_unchecked() */
64 double get_value () const;
66 void _set_value (double, PBD::Controllable::GroupControlDisposition group_override);
69 void set_monitoring (MonitorChoice, PBD::Controllable::GroupControlDisposition group_override);
70 MonitorChoice monitoring_choice() const { return _monitoring; }
71 MonitorState monitoring_state () const;
72 PBD::Signal0<void> MonitoringChanged;
74 boost::shared_ptr<AutomationControl> monitoring_control() const { return _monitoring_control; }
76 MeterState metering_state () const;
78 virtual int no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
81 int silent_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
84 virtual int roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
85 int declick, bool& need_butler) = 0;
87 bool needs_butler() const { return _needs_butler; }
89 virtual DataType data_type () const = 0;
93 void use_new_diskstream ();
94 virtual boost::shared_ptr<Diskstream> create_diskstream() = 0;
95 virtual void set_diskstream (boost::shared_ptr<Diskstream>);
97 void set_latency_compensation (framecnt_t);
105 FreezeState freeze_state() const;
107 virtual void freeze_me (InterThreadInfo&) = 0;
108 virtual void unfreeze () = 0;
110 /** Test if the track can be bounced with the given settings.
111 * If sends/inserts/returns are present in the signal path or the given track
112 * has no audio outputs bouncing is not possible.
114 * @param endpoint the processor to tap the signal off (or nil for the top)
115 * @param include_endpoint include the given processor in the bounced audio.
116 * @return true if the track can be bounced, or false otherwise.
118 virtual bool bounceable (boost::shared_ptr<Processor> endpoint, bool include_endpoint) const = 0;
119 virtual boost::shared_ptr<Region> bounce (InterThreadInfo&) = 0;
121 /** Bounce the given range to a new audio region.
122 * @param start start time (in samples)
123 * @param end end time (in samples)
124 * @param itt asynchronous progress report and cancel
125 * @param endpoint the processor to tap the signal off (or nil for the top)
126 * @param include_endpoint include the given processor in the bounced audio.
127 * @return a new audio region (or nil in case of error)
129 virtual boost::shared_ptr<Region> bounce_range (framepos_t start, framepos_t end, InterThreadInfo& itt,
130 boost::shared_ptr<Processor> endpoint, bool include_endpoint) = 0;
131 virtual int export_stuff (BufferSet& bufs, framepos_t start_frame, framecnt_t nframes,
132 boost::shared_ptr<Processor> endpoint, bool include_endpoint, bool for_export, bool for_freeze) = 0;
134 XMLNode& get_state();
135 XMLNode& get_template();
136 virtual int set_state (const XMLNode&, int version);
137 static void zero_diskstream_id_in_xml (XMLNode&);
139 boost::shared_ptr<AutomationControl> rec_enable_control() { return _rec_enable_control; }
141 bool record_enabled() const;
142 bool record_safe () const;
143 void set_record_enabled (bool yn, PBD::Controllable::GroupControlDisposition);
144 void set_record_safe (bool yn, PBD::Controllable::GroupControlDisposition);
145 void prep_record_enabled (bool yn, PBD::Controllable::GroupControlDisposition);
147 bool using_diskstream_id (PBD::ID) const;
149 void set_block_size (pframes_t);
151 /* PublicDiskstream interface */
152 boost::shared_ptr<Playlist> playlist ();
153 void request_input_monitoring (bool);
154 void ensure_input_monitoring (bool);
155 bool destructive () const;
156 std::list<boost::shared_ptr<Source> > & last_capture_sources ();
157 void set_capture_offset ();
158 std::string steal_write_source_name ();
159 void reset_write_sources (bool, bool force = false);
160 float playback_buffer_load () const;
161 float capture_buffer_load () const;
163 int do_flush (RunContext, bool force = false);
164 void set_pending_overwrite (bool);
165 int seek (framepos_t, bool complete_refill = false);
166 bool hidden () const;
167 int can_internal_playback_seek (framecnt_t);
168 int internal_playback_seek (framecnt_t);
169 void non_realtime_input_change ();
170 void non_realtime_locate (framepos_t);
171 void non_realtime_set_speed ();
172 int overwrite_existing_buffers ();
173 framecnt_t get_captured_frames (uint32_t n = 0) const;
174 int set_loop (Location *);
175 void transport_looped (framepos_t);
176 bool realtime_set_speed (double, bool);
177 void transport_stopped_wallclock (struct tm &, time_t, bool);
178 bool pending_overwrite () const;
179 double speed () const;
180 void prepare_to_stop (framepos_t, framepos_t);
181 void set_slaved (bool);
182 ChanCount n_channels ();
183 framepos_t get_capture_start_frame (uint32_t n = 0) const;
184 AlignStyle alignment_style () const;
185 AlignChoice alignment_choice () const;
186 framepos_t current_capture_start () const;
187 framepos_t current_capture_end () const;
188 void playlist_modified ();
189 int use_playlist (boost::shared_ptr<Playlist>);
190 void set_align_style (AlignStyle, bool force=false);
191 void set_align_choice (AlignChoice, bool force=false);
192 int use_copy_playlist ();
193 int use_new_playlist ();
194 void adjust_playback_buffering ();
195 void adjust_capture_buffering ();
197 PBD::Signal0<void> DiskstreamChanged;
198 PBD::Signal0<void> FreezeChange;
199 /* Emitted when our diskstream is set to use a different playlist */
200 PBD::Signal0<void> PlaylistChanged;
201 PBD::Signal0<void> RecordEnableChanged;
202 PBD::Signal0<void> RecordSafeChanged;
203 PBD::Signal0<void> SpeedChanged;
204 PBD::Signal0<void> AlignmentStyleChanged;
207 XMLNode& state (bool full);
209 boost::shared_ptr<Diskstream> _diskstream;
210 MeterPoint _saved_meter_point;
213 MonitorChoice _monitoring;
214 boost::shared_ptr<MonitoringControllable> _monitoring_control;
217 struct FreezeRecordProcessorInfo {
218 FreezeRecordProcessorInfo(XMLNode& st, boost::shared_ptr<Processor> proc)
219 : state (st), processor (proc) {}
222 boost::shared_ptr<Processor> processor;
226 struct FreezeRecord {
228 : have_mementos(false)
233 boost::shared_ptr<Playlist> playlist;
234 std::vector<FreezeRecordProcessorInfo*> processor_info;
239 class RecEnableControl : public AutomationControl {
241 RecEnableControl (boost::shared_ptr<Track> t);
243 void set_value (double, PBD::Controllable::GroupControlDisposition);
244 void set_value_unchecked (double);
245 double get_value (void) const;
247 boost::weak_ptr<Track> track;
250 void _set_value (double, PBD::Controllable::GroupControlDisposition);
253 virtual void set_state_part_two () = 0;
255 FreezeRecord _freeze_record;
256 XMLNode* pending_state;
259 void maybe_declick (BufferSet&, framecnt_t, int);
261 boost::shared_ptr<RecEnableControl> _rec_enable_control;
263 framecnt_t check_initial_delay (framecnt_t nframes, framepos_t&);
267 virtual boost::shared_ptr<Diskstream> diskstream_factory (XMLNode const &) = 0;
269 void diskstream_playlist_changed ();
270 void diskstream_record_enable_changed ();
271 void diskstream_record_safe_changed ();
272 void diskstream_speed_changed ();
273 void diskstream_alignment_style_changed ();
274 void parameter_changed (std::string const & p);
276 std::string _diskstream_name;
279 }; /* namespace ARDOUR*/
281 #endif /* __ardour_track_h__ */