2 Copyright (C) 2000-2003 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.
26 #include <glibmm/threads.h>
27 #include "pbd/xml++.h"
29 #include "ardour/debug.h"
30 #include "ardour/filter.h"
31 #include "ardour/playlist.h"
32 #include "ardour/playlist_source.h"
33 #include "ardour/profile.h"
34 #include "ardour/region.h"
35 #include "ardour/region_factory.h"
36 #include "ardour/session.h"
37 #include "ardour/source.h"
38 #include "ardour/tempo.h"
39 #include "ardour/transient_detector.h"
44 using namespace ARDOUR;
49 namespace Properties {
50 PBD::PropertyDescriptor<bool> muted;
51 PBD::PropertyDescriptor<bool> opaque;
52 PBD::PropertyDescriptor<bool> locked;
53 PBD::PropertyDescriptor<bool> video_locked;
54 PBD::PropertyDescriptor<bool> automatic;
55 PBD::PropertyDescriptor<bool> whole_file;
56 PBD::PropertyDescriptor<bool> import;
57 PBD::PropertyDescriptor<bool> external;
58 PBD::PropertyDescriptor<bool> sync_marked;
59 PBD::PropertyDescriptor<bool> left_of_split;
60 PBD::PropertyDescriptor<bool> right_of_split;
61 PBD::PropertyDescriptor<bool> hidden;
62 PBD::PropertyDescriptor<bool> position_locked;
63 PBD::PropertyDescriptor<bool> valid_transients;
64 PBD::PropertyDescriptor<framepos_t> start;
65 PBD::PropertyDescriptor<framecnt_t> length;
66 PBD::PropertyDescriptor<framepos_t> position;
67 PBD::PropertyDescriptor<double> beat;
68 PBD::PropertyDescriptor<framecnt_t> sync_position;
69 PBD::PropertyDescriptor<layer_t> layer;
70 PBD::PropertyDescriptor<framepos_t> ancestral_start;
71 PBD::PropertyDescriptor<framecnt_t> ancestral_length;
72 PBD::PropertyDescriptor<float> stretch;
73 PBD::PropertyDescriptor<float> shift;
74 PBD::PropertyDescriptor<PositionLockStyle> position_lock_style;
75 PBD::PropertyDescriptor<uint64_t> layering_index;
79 PBD::Signal2<void,boost::shared_ptr<ARDOUR::Region>,const PropertyChange&> Region::RegionPropertyChanged;
82 Region::make_property_quarks ()
84 Properties::muted.property_id = g_quark_from_static_string (X_("muted"));
85 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for muted = %1\n", Properties::muted.property_id));
86 Properties::opaque.property_id = g_quark_from_static_string (X_("opaque"));
87 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for opaque = %1\n", Properties::opaque.property_id));
88 Properties::locked.property_id = g_quark_from_static_string (X_("locked"));
89 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for locked = %1\n", Properties::locked.property_id));
90 Properties::video_locked.property_id = g_quark_from_static_string (X_("video-locked"));
91 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for video-locked = %1\n", Properties::video_locked.property_id));
92 Properties::automatic.property_id = g_quark_from_static_string (X_("automatic"));
93 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for automatic = %1\n", Properties::automatic.property_id));
94 Properties::whole_file.property_id = g_quark_from_static_string (X_("whole-file"));
95 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for whole-file = %1\n", Properties::whole_file.property_id));
96 Properties::import.property_id = g_quark_from_static_string (X_("import"));
97 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for import = %1\n", Properties::import.property_id));
98 Properties::external.property_id = g_quark_from_static_string (X_("external"));
99 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for external = %1\n", Properties::external.property_id));
100 Properties::sync_marked.property_id = g_quark_from_static_string (X_("sync-marked"));
101 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for sync-marked = %1\n", Properties::sync_marked.property_id));
102 Properties::left_of_split.property_id = g_quark_from_static_string (X_("left-of-split"));
103 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for left-of-split = %1\n", Properties::left_of_split.property_id));
104 Properties::right_of_split.property_id = g_quark_from_static_string (X_("right-of-split"));
105 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for right-of-split = %1\n", Properties::right_of_split.property_id));
106 Properties::hidden.property_id = g_quark_from_static_string (X_("hidden"));
107 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for hidden = %1\n", Properties::hidden.property_id));
108 Properties::position_locked.property_id = g_quark_from_static_string (X_("position-locked"));
109 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for position-locked = %1\n", Properties::position_locked.property_id));
110 Properties::valid_transients.property_id = g_quark_from_static_string (X_("valid-transients"));
111 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for valid-transients = %1\n", Properties::valid_transients.property_id));
112 Properties::start.property_id = g_quark_from_static_string (X_("start"));
113 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for start = %1\n", Properties::start.property_id));
114 Properties::length.property_id = g_quark_from_static_string (X_("length"));
115 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for length = %1\n", Properties::length.property_id));
116 Properties::position.property_id = g_quark_from_static_string (X_("position"));
117 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for position = %1\n", Properties::position.property_id));
118 Properties::beat.property_id = g_quark_from_static_string (X_("beat"));
119 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for beat = %1\n", Properties::beat.property_id));
120 Properties::sync_position.property_id = g_quark_from_static_string (X_("sync-position"));
121 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for sync-position = %1\n", Properties::sync_position.property_id));
122 Properties::layer.property_id = g_quark_from_static_string (X_("layer"));
123 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for layer = %1\n", Properties::layer.property_id));
124 Properties::ancestral_start.property_id = g_quark_from_static_string (X_("ancestral-start"));
125 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for ancestral-start = %1\n", Properties::ancestral_start.property_id));
126 Properties::ancestral_length.property_id = g_quark_from_static_string (X_("ancestral-length"));
127 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for ancestral-length = %1\n", Properties::ancestral_length.property_id));
128 Properties::stretch.property_id = g_quark_from_static_string (X_("stretch"));
129 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for stretch = %1\n", Properties::stretch.property_id));
130 Properties::shift.property_id = g_quark_from_static_string (X_("shift"));
131 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for shift = %1\n", Properties::shift.property_id));
132 Properties::position_lock_style.property_id = g_quark_from_static_string (X_("positional-lock-style"));
133 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for position_lock_style = %1\n", Properties::position_lock_style.property_id));
134 Properties::layering_index.property_id = g_quark_from_static_string (X_("layering-index"));
135 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for layering_index = %1\n", Properties::layering_index.property_id));
139 Region::register_properties ()
141 _xml_node_name = X_("Region");
143 add_property (_muted);
144 add_property (_opaque);
145 add_property (_locked);
146 add_property (_video_locked);
147 add_property (_automatic);
148 add_property (_whole_file);
149 add_property (_import);
150 add_property (_external);
151 add_property (_sync_marked);
152 add_property (_left_of_split);
153 add_property (_right_of_split);
154 add_property (_hidden);
155 add_property (_position_locked);
156 add_property (_valid_transients);
157 add_property (_start);
158 add_property (_length);
159 add_property (_position);
160 add_property (_beat);
161 add_property (_sync_position);
162 add_property (_ancestral_start);
163 add_property (_ancestral_length);
164 add_property (_stretch);
165 add_property (_shift);
166 add_property (_position_lock_style);
167 add_property (_layering_index);
170 #define REGION_DEFAULT_STATE(s,l) \
171 _sync_marked (Properties::sync_marked, false) \
172 , _left_of_split (Properties::left_of_split, false) \
173 , _right_of_split (Properties::right_of_split, false) \
174 , _valid_transients (Properties::valid_transients, false) \
175 , _start (Properties::start, (s)) \
176 , _length (Properties::length, (l)) \
177 , _position (Properties::position, 0) \
178 , _beat (Properties::beat, 0.0) \
179 , _sync_position (Properties::sync_position, (s)) \
181 , _transient_user_start (0) \
182 , _transient_analysis_start (0) \
183 , _transient_analysis_end (0) \
184 , _muted (Properties::muted, false) \
185 , _opaque (Properties::opaque, true) \
186 , _locked (Properties::locked, false) \
187 , _video_locked (Properties::video_locked, false) \
188 , _automatic (Properties::automatic, false) \
189 , _whole_file (Properties::whole_file, false) \
190 , _import (Properties::import, false) \
191 , _external (Properties::external, false) \
192 , _hidden (Properties::hidden, false) \
193 , _position_locked (Properties::position_locked, false) \
194 , _ancestral_start (Properties::ancestral_start, (s)) \
195 , _ancestral_length (Properties::ancestral_length, (l)) \
196 , _stretch (Properties::stretch, 1.0) \
197 , _shift (Properties::shift, 1.0) \
198 , _position_lock_style (Properties::position_lock_style, _type == DataType::AUDIO ? AudioTime : MusicTime) \
199 , _layering_index (Properties::layering_index, 0)
201 #define REGION_COPY_STATE(other) \
202 _sync_marked (Properties::sync_marked, other->_sync_marked) \
203 , _left_of_split (Properties::left_of_split, other->_left_of_split) \
204 , _right_of_split (Properties::right_of_split, other->_right_of_split) \
205 , _valid_transients (Properties::valid_transients, other->_valid_transients) \
206 , _start(Properties::start, other->_start) \
207 , _length(Properties::length, other->_length) \
208 , _position(Properties::position, other->_position) \
209 , _beat (Properties::beat, other->_beat) \
210 , _sync_position(Properties::sync_position, other->_sync_position) \
211 , _pulse (other->_pulse) \
212 , _user_transients (other->_user_transients) \
213 , _transient_user_start (other->_transient_user_start) \
214 , _transients (other->_transients) \
215 , _transient_analysis_start (other->_transient_analysis_start) \
216 , _transient_analysis_end (other->_transient_analysis_end) \
217 , _muted (Properties::muted, other->_muted) \
218 , _opaque (Properties::opaque, other->_opaque) \
219 , _locked (Properties::locked, other->_locked) \
220 , _video_locked (Properties::video_locked, other->_video_locked) \
221 , _automatic (Properties::automatic, other->_automatic) \
222 , _whole_file (Properties::whole_file, other->_whole_file) \
223 , _import (Properties::import, other->_import) \
224 , _external (Properties::external, other->_external) \
225 , _hidden (Properties::hidden, other->_hidden) \
226 , _position_locked (Properties::position_locked, other->_position_locked) \
227 , _ancestral_start (Properties::ancestral_start, other->_ancestral_start) \
228 , _ancestral_length (Properties::ancestral_length, other->_ancestral_length) \
229 , _stretch (Properties::stretch, other->_stretch) \
230 , _shift (Properties::shift, other->_shift) \
231 , _position_lock_style (Properties::position_lock_style, other->_position_lock_style) \
232 , _layering_index (Properties::layering_index, other->_layering_index)
234 /* derived-from-derived constructor (no sources in constructor) */
235 Region::Region (Session& s, framepos_t start, framecnt_t length, const string& name, DataType type)
236 : SessionObject(s, name)
238 , REGION_DEFAULT_STATE(start,length)
239 , _last_length (length)
241 , _first_edit (EditChangesNothing)
244 register_properties ();
246 /* no sources at this point */
249 /** Basic Region constructor (many sources) */
250 Region::Region (const SourceList& srcs)
251 : SessionObject(srcs.front()->session(), "toBeRenamed")
252 , _type (srcs.front()->type())
253 , REGION_DEFAULT_STATE(0,0)
256 , _first_edit (EditChangesNothing)
259 register_properties ();
261 _type = srcs.front()->type();
265 assert(_sources.size() > 0);
266 assert (_type == srcs.front()->type());
269 /** Create a new Region from an existing one */
270 Region::Region (boost::shared_ptr<const Region> other)
271 : SessionObject(other->session(), other->name())
272 , _type (other->data_type())
273 , REGION_COPY_STATE (other)
274 , _last_length (other->_last_length)
275 , _last_position(other->_last_position) \
276 , _first_edit (EditChangesNothing)
277 , _layer (other->_layer)
279 register_properties ();
281 /* override state that may have been incorrectly inherited from the other region
284 _position = other->_position;
289 use_sources (other->_sources);
290 set_master_sources (other->_master_sources);
292 _position_lock_style = other->_position_lock_style;
293 _first_edit = other->_first_edit;
295 _start = other->_start;
296 _beat = other->_beat;
297 _pulse = other->_pulse;
299 /* sync pos is relative to start of file. our start-in-file is now zero,
300 so set our sync position to whatever the the difference between
301 _start and _sync_pos was in the other region.
303 result is that our new sync pos points to the same point in our source(s)
304 as the sync in the other region did in its source(s).
306 since we start at zero in our source(s), it is not possible to use a sync point that
307 is before the start. reset it to _start if that was true in the other region.
310 if (other->sync_marked()) {
311 if (other->_start < other->_sync_position) {
312 /* sync pos was after the start point of the other region */
313 _sync_position = other->_sync_position - other->_start;
315 /* sync pos was before the start point of the other region. not possible here. */
316 _sync_marked = false;
317 _sync_position = _start;
320 _sync_marked = false;
321 _sync_position = _start;
324 assert (_type == other->data_type());
327 /** Create a new Region from part of an existing one.
329 the start within \a other is given by \a offset
330 (i.e. relative to the start of \a other's sources, the start is \a offset + \a other.start()
332 Region::Region (boost::shared_ptr<const Region> other, frameoffset_t offset, const int32_t sub_num)
333 : SessionObject(other->session(), other->name())
334 , _type (other->data_type())
335 , REGION_COPY_STATE (other)
336 , _last_length (other->_last_length)
337 , _last_position(other->_last_position) \
338 , _first_edit (EditChangesNothing)
339 , _layer (other->_layer)
341 register_properties ();
343 /* override state that may have been incorrectly inherited from the other region
346 _position = other->_position + offset;
351 use_sources (other->_sources);
352 set_master_sources (other->_master_sources);
354 _start = other->_start + offset;
355 _beat = _session.tempo_map().exact_beat_at_frame (_position, sub_num);
356 _pulse = _session.tempo_map().exact_qn_at_frame (_position, sub_num) / 4.0;
358 /* if the other region had a distinct sync point
359 set, then continue to use it as best we can.
360 otherwise, reset sync point back to start.
363 if (other->sync_marked()) {
364 if (other->_sync_position < _start) {
365 _sync_marked = false;
366 _sync_position = _start;
368 _sync_position = other->_sync_position;
371 _sync_marked = false;
372 _sync_position = _start;
375 assert (_type == other->data_type());
378 /** Create a copy of @param other but with different sources. Used by filters */
379 Region::Region (boost::shared_ptr<const Region> other, const SourceList& srcs)
380 : SessionObject (other->session(), other->name())
381 , _type (srcs.front()->type())
382 , REGION_COPY_STATE (other)
383 , _last_length (other->_last_length)
384 , _last_position (other->_last_position)
385 , _first_edit (EditChangesID)
386 , _layer (other->_layer)
388 register_properties ();
391 _position_locked = false;
393 other->_first_edit = EditChangesName;
395 if (other->_extra_xml) {
396 _extra_xml = new XMLNode (*other->_extra_xml);
402 assert(_sources.size() > 0);
407 DEBUG_TRACE (DEBUG::Destruction, string_compose ("Region %1 destructor @ %2\n", _name, this));
412 Region::set_playlist (boost::weak_ptr<Playlist> wpl)
414 _playlist = wpl.lock();
418 Region::set_name (const std::string& str)
421 SessionObject::set_name(str); // EMIT SIGNAL NameChanged()
422 assert(_name == str);
424 send_change (Properties::name);
431 Region::set_length (framecnt_t len, const int32_t sub_num)
433 //cerr << "Region::set_length() len = " << len << endl;
438 if (_length != len && len != 0) {
440 /* check that the current _position wouldn't make the new
444 if (max_framepos - len < _position) {
448 if (!verify_length (len)) {
453 set_length_internal (len, sub_num);
457 maybe_invalidate_transients ();
459 if (!property_changes_suspended()) {
463 send_change (Properties::length);
468 Region::set_length_internal (framecnt_t len, const int32_t sub_num)
470 _last_length = _length;
475 Region::maybe_uncopy ()
477 /* this does nothing but marked a semantic moment once upon a time */
481 Region::first_edit ()
483 boost::shared_ptr<Playlist> pl (playlist());
485 if (_first_edit != EditChangesNothing && pl) {
487 _name = RegionFactory::new_region_name (_name);
488 _first_edit = EditChangesNothing;
490 send_change (Properties::name);
492 RegionFactory::CheckNewRegion (shared_from_this());
497 Region::at_natural_position () const
499 boost::shared_ptr<Playlist> pl (playlist());
505 boost::shared_ptr<Region> whole_file_region = get_parent();
507 if (whole_file_region) {
508 if (_position == whole_file_region->position() + _start) {
517 Region::move_to_natural_position ()
519 boost::shared_ptr<Playlist> pl (playlist());
525 boost::shared_ptr<Region> whole_file_region = get_parent();
527 if (whole_file_region) {
528 set_position (whole_file_region->position() + _start);
533 Region::special_set_position (framepos_t pos)
535 /* this is used when creating a whole file region as
536 a way to store its "natural" or "captured" position.
539 _position = _position;
544 Region::set_position_lock_style (PositionLockStyle ps)
546 if (_position_lock_style != ps) {
548 boost::shared_ptr<Playlist> pl (playlist());
550 _position_lock_style = ps;
552 if (_position_lock_style == MusicTime) {
553 _beat = _session.tempo_map().beat_at_frame (_position);
554 _pulse = _session.tempo_map().pulse_at_frame (_position);
557 send_change (Properties::position_lock_style);
562 Region::update_after_tempo_map_change (bool send)
564 boost::shared_ptr<Playlist> pl (playlist());
570 if (_position_lock_style == AudioTime) {
571 /* don't signal as the actual position has not chnged */
572 recompute_position_from_lock_style (0);
576 /* prevent movement before 0 */
577 const framepos_t pos = max ((framepos_t) 0, _session.tempo_map().frame_at_beat (_beat));
578 /* we have _beat. update frame position non-musically */
579 set_position_internal (pos, false, 0);
581 /* do this even if the position is the same. this helps out
582 a GUI that has moved its representation already.
586 send_change (Properties::position);
591 Region::set_position (framepos_t pos, int32_t sub_num)
598 set_position_internal (pos, true, 0);
600 _beat = _session.tempo_map().exact_beat_at_frame (pos, sub_num);
601 /* will set pulse accordingly */
602 set_position_internal (pos, false, sub_num);
605 /* do this even if the position is the same. this helps out
606 a GUI that has moved its representation already.
608 PropertyChange p_and_l;
610 p_and_l.add (Properties::position);
611 /* Currently length change due to position change is only implemented
612 for MidiRegion (Region has no length in beats).
613 Notify a length change regardless (its more efficient for MidiRegions),
614 and when Region has a _length_beats we will need it here anyway).
616 p_and_l.add (Properties::length);
618 send_change (p_and_l);
622 /** A gui may need to create a region, then place it in an initial
623 * position determined by the user.
624 * When this takes place within one gui operation, we have to reset
625 * _last_position to prevent an implied move.
628 Region::set_initial_position (framepos_t pos)
634 if (_position != pos) {
637 /* check that the new _position wouldn't make the current
638 length impossible - if so, change the length.
640 XXX is this the right thing to do?
643 if (max_framepos - _length < _position) {
644 _last_length = _length;
645 _length = max_framepos - _position;
648 recompute_position_from_lock_style (0);
649 /* ensure that this move doesn't cause a range move */
650 _last_position = _position;
654 /* do this even if the position is the same. this helps out
655 a GUI that has moved its representation already.
657 send_change (Properties::position);
661 Region::set_position_internal (framepos_t pos, bool allow_bbt_recompute, const int32_t sub_num)
663 /* We emit a change of Properties::position even if the position hasn't changed
664 (see Region::set_position), so we must always set this up so that
665 e.g. Playlist::notify_region_moved doesn't use an out-of-date last_position.
667 _last_position = _position;
669 if (_position != pos) {
672 if (allow_bbt_recompute) {
673 recompute_position_from_lock_style (sub_num);
675 /* MusicTime dictates that we glue to ardour beats. the pulse may have changed.*/
676 _pulse = _session.tempo_map().pulse_at_beat (_beat);
679 /* check that the new _position wouldn't make the current
680 length impossible - if so, change the length.
682 XXX is this the right thing to do?
684 if (max_framepos - _length < _position) {
685 _last_length = _length;
686 _length = max_framepos - _position;
692 Region::recompute_position_from_lock_style (const int32_t sub_num)
694 _beat = _session.tempo_map().exact_beat_at_frame (_position, sub_num);
695 _pulse = _session.tempo_map().exact_qn_at_frame (_position, sub_num) / 4.0;
699 Region::nudge_position (frameoffset_t n)
701 if (locked() || video_locked()) {
709 framepos_t new_position = _position;
712 if (_position > max_framepos - n) {
713 new_position = max_framepos;
718 if (_position < -n) {
724 /* assumes non-musical nudge */
725 set_position_internal (new_position, true, 0);
727 send_change (Properties::position);
731 Region::set_ancestral_data (framepos_t s, framecnt_t l, float st, float sh)
733 _ancestral_length = l;
734 _ancestral_start = s;
740 Region::set_start (framepos_t pos)
742 if (locked() || position_locked() || video_locked()) {
745 /* This just sets the start, nothing else. It effectively shifts
746 the contents of the Region within the overall extent of the Source,
747 without changing the Region's position or length
752 if (!verify_start (pos)) {
756 set_start_internal (pos);
759 maybe_invalidate_transients ();
761 send_change (Properties::start);
766 Region::move_start (frameoffset_t distance, const int32_t sub_num)
768 if (locked() || position_locked() || video_locked()) {
772 framepos_t new_start;
776 if (_start > max_framepos - distance) {
777 new_start = max_framepos; // makes no sense
779 new_start = _start + distance;
782 if (!verify_start (new_start)) {
786 } else if (distance < 0) {
788 if (_start < -distance) {
791 new_start = _start + distance;
798 if (new_start == _start) {
802 set_start_internal (new_start, sub_num);
807 send_change (Properties::start);
811 Region::trim_front (framepos_t new_position, const int32_t sub_num)
813 modify_front (new_position, false, sub_num);
817 Region::cut_front (framepos_t new_position, const int32_t sub_num)
819 modify_front (new_position, true, sub_num);
823 Region::cut_end (framepos_t new_endpoint, const int32_t sub_num)
825 modify_end (new_endpoint, true, sub_num);
829 Region::modify_front (framepos_t new_position, bool reset_fade, const int32_t sub_num)
835 framepos_t end = last_frame();
836 framepos_t source_zero;
838 if (_position > _start) {
839 source_zero = _position - _start;
841 source_zero = 0; // its actually negative, but this will work for us
844 if (new_position < end) { /* can't trim it zero or negative length */
846 framecnt_t newlen = 0;
848 if (!can_trim_start_before_source_start ()) {
849 /* can't trim it back past where source position zero is located */
850 new_position = max (new_position, source_zero);
853 if (new_position > _position) {
854 newlen = _length - (new_position - _position);
856 newlen = _length + (_position - new_position);
859 trim_to_internal (new_position, newlen, sub_num);
862 _right_of_split = true;
865 if (!property_changes_suspended()) {
866 recompute_at_start ();
869 maybe_invalidate_transients ();
874 Region::modify_end (framepos_t new_endpoint, bool reset_fade, const int32_t sub_num)
880 if (new_endpoint > _position) {
881 trim_to_internal (_position, new_endpoint - _position, sub_num);
883 _left_of_split = true;
885 if (!property_changes_suspended()) {
891 /** @param new_endpoint New region end point, such that, for example,
892 * a region at 0 of length 10 has an endpoint of 9.
896 Region::trim_end (framepos_t new_endpoint, const int32_t sub_num)
898 modify_end (new_endpoint, false, sub_num);
902 Region::trim_to (framepos_t position, framecnt_t length, const int32_t sub_num)
908 trim_to_internal (position, length, sub_num);
910 if (!property_changes_suspended()) {
911 recompute_at_start ();
917 Region::trim_to_internal (framepos_t position, framecnt_t length, const int32_t sub_num)
919 framepos_t new_start;
925 frameoffset_t const start_shift = position - _position;
927 if (start_shift > 0) {
929 if (_start > max_framepos - start_shift) {
930 new_start = max_framepos;
932 new_start = _start + start_shift;
935 } else if (start_shift < 0) {
937 if (_start < -start_shift && !can_trim_start_before_source_start ()) {
940 new_start = _start + start_shift;
947 if (!verify_start_and_length (new_start, length)) {
951 PropertyChange what_changed;
953 if (_start != new_start) {
954 set_start_internal (new_start, sub_num);
955 what_changed.add (Properties::start);
959 /* Set position before length, otherwise for MIDI regions this bad thing happens:
960 * 1. we call set_length_internal; length in beats is computed using the region's current
961 * (soon-to-be old) position
962 * 2. we call set_position_internal; position is set and length in frames re-computed using
963 * length in beats from (1) but at the new position, which is wrong if the region
964 * straddles a tempo/meter change.
967 if (_position != position) {
968 if (!property_changes_suspended()) {
969 _last_position = _position;
971 set_position_internal (position, true, sub_num);
972 what_changed.add (Properties::position);
975 if (_length != length) {
976 if (!property_changes_suspended()) {
977 _last_length = _length;
979 set_length_internal (length, sub_num);
980 what_changed.add (Properties::length);
985 PropertyChange start_and_length;
987 start_and_length.add (Properties::start);
988 start_and_length.add (Properties::length);
990 if (what_changed.contains (start_and_length)) {
994 if (!what_changed.empty()) {
995 send_change (what_changed);
1000 Region::set_hidden (bool yn)
1002 if (hidden() != yn) {
1004 send_change (Properties::hidden);
1009 Region::set_whole_file (bool yn)
1012 /* no change signal */
1016 Region::set_automatic (bool yn)
1019 /* no change signal */
1023 Region::set_muted (bool yn)
1025 if (muted() != yn) {
1027 send_change (Properties::muted);
1032 Region::set_opaque (bool yn)
1034 if (opaque() != yn) {
1036 send_change (Properties::opaque);
1041 Region::set_locked (bool yn)
1043 if (locked() != yn) {
1045 send_change (Properties::locked);
1050 Region::set_video_locked (bool yn)
1052 if (video_locked() != yn) {
1054 send_change (Properties::video_locked);
1059 Region::set_position_locked (bool yn)
1061 if (position_locked() != yn) {
1062 _position_locked = yn;
1063 send_change (Properties::locked);
1067 /** Set the region's sync point.
1068 * @param absolute_pos Session time.
1071 Region::set_sync_position (framepos_t absolute_pos)
1073 /* position within our file */
1074 framepos_t const file_pos = _start + (absolute_pos - _position);
1076 if (file_pos != _sync_position) {
1077 _sync_marked = true;
1078 _sync_position = file_pos;
1079 if (!property_changes_suspended()) {
1083 send_change (Properties::sync_position);
1088 Region::clear_sync_position ()
1090 if (sync_marked()) {
1091 _sync_marked = false;
1092 if (!property_changes_suspended()) {
1096 send_change (Properties::sync_position);
1100 /* @return the sync point relative the first frame of the region */
1102 Region::sync_offset (int& dir) const
1104 if (sync_marked()) {
1105 if (_sync_position > _start) {
1107 return _sync_position - _start;
1110 return _start - _sync_position;
1119 Region::adjust_to_sync (framepos_t pos) const
1122 frameoffset_t offset = sync_offset (sync_dir);
1124 // cerr << "adjusting pos = " << pos << " to sync at " << _sync_position << " offset = " << offset << " with dir = " << sync_dir << endl;
1133 if (max_framepos - pos > offset) {
1141 /** @return Sync position in session time */
1143 Region::sync_position() const
1145 if (sync_marked()) {
1146 return _position - _start + _sync_position;
1148 /* if sync has not been marked, use the start of the region */
1156 boost::shared_ptr<Playlist> pl (playlist());
1158 pl->raise_region (shared_from_this ());
1165 boost::shared_ptr<Playlist> pl (playlist());
1167 pl->lower_region (shared_from_this ());
1173 Region::raise_to_top ()
1175 boost::shared_ptr<Playlist> pl (playlist());
1177 pl->raise_region_to_top (shared_from_this());
1182 Region::lower_to_bottom ()
1184 boost::shared_ptr<Playlist> pl (playlist());
1186 pl->lower_region_to_bottom (shared_from_this());
1191 Region::set_layer (layer_t l)
1199 XMLNode *node = new XMLNode ("Region");
1203 const char* fe = NULL;
1205 /* custom version of 'add_properties (*node);'
1206 * skip values that have have dedicated save functions
1207 * in AudioRegion::state()
1209 for (OwnedPropertyList::iterator i = _properties->begin(); i != _properties->end(); ++i) {
1210 if (!strcmp(i->second->property_name(), (const char*)"Envelope")) continue;
1211 if (!strcmp(i->second->property_name(), (const char*)"FadeIn")) continue;
1212 if (!strcmp(i->second->property_name(), (const char*)"FadeOut")) continue;
1213 if (!strcmp(i->second->property_name(), (const char*)"InverseFadeIn")) continue;
1214 if (!strcmp(i->second->property_name(), (const char*)"InverseFadeOut")) continue;
1215 i->second->get_value (*node);
1218 id().print (buf, sizeof (buf));
1219 node->add_property ("id", buf);
1220 node->add_property ("type", _type.to_string());
1222 switch (_first_edit) {
1223 case EditChangesNothing:
1226 case EditChangesName:
1232 default: /* should be unreachable but makes g++ happy */
1237 node->add_property ("first-edit", fe);
1239 /* note: flags are stored by derived classes */
1241 for (uint32_t n=0; n < _sources.size(); ++n) {
1242 snprintf (buf2, sizeof(buf2), "source-%d", n);
1243 _sources[n]->id().print (buf, sizeof(buf));
1244 node->add_property (buf2, buf);
1247 for (uint32_t n=0; n < _master_sources.size(); ++n) {
1248 snprintf (buf2, sizeof(buf2), "master-source-%d", n);
1249 _master_sources[n]->id().print (buf, sizeof (buf));
1250 node->add_property (buf2, buf);
1253 /* Only store nested sources for the whole-file region that acts
1254 as the parent/root of all regions using it.
1257 if (_whole_file && max_source_level() > 0) {
1259 XMLNode* nested_node = new XMLNode (X_("NestedSource"));
1261 /* region is compound - get its playlist and
1262 store that before we list the region that
1266 for (SourceList::const_iterator s = _sources.begin(); s != _sources.end(); ++s) {
1267 nested_node->add_child_nocopy ((*s)->get_state ());
1271 node->add_child_nocopy (*nested_node);
1276 node->add_child_copy (*_extra_xml);
1283 Region::get_state ()
1289 Region::set_state (const XMLNode& node, int version)
1291 PropertyChange what_changed;
1292 return _set_state (node, version, what_changed, true);
1296 Region::_set_state (const XMLNode& node, int /*version*/, PropertyChange& what_changed, bool send)
1298 XMLProperty const * prop;
1299 Timecode::BBT_Time bbt_time;
1301 Stateful::save_extra_xml (node);
1303 what_changed = set_values (node);
1307 if (_position_lock_style == MusicTime) {
1308 if ((prop = node.property ("bbt-position")) != 0) {
1309 if (sscanf (prop->value().c_str(), "%d|%d|%d",
1312 &bbt_time.ticks) != 3) {
1313 _position_lock_style = AudioTime;
1314 _beat = _session.tempo_map().beat_at_frame (_position);
1316 _beat = _session.tempo_map().beat_at_bbt (bbt_time);
1321 _pulse = _session.tempo_map().pulse_at_beat (_beat);
1323 /* fix problems with old sessions corrupted by impossible
1324 values for _stretch or _shift
1326 if (_stretch == 0.0f) {
1330 if (_shift == 0.0f) {
1335 send_change (what_changed);
1338 /* Quick fix for 2.x sessions when region is muted */
1339 if ((prop = node.property (X_("flags")))) {
1340 if (string::npos != prop->value().find("Muted")){
1345 // saved property is invalid, region-transients are not saved
1346 if (_user_transients.size() == 0){
1347 _valid_transients = false;
1354 Region::suspend_property_changes ()
1356 Stateful::suspend_property_changes ();
1357 _last_length = _length;
1358 _last_position = _position;
1362 Region::mid_thaw (const PropertyChange& what_changed)
1364 if (what_changed.contains (Properties::length)) {
1365 if (what_changed.contains (Properties::position)) {
1366 recompute_at_start ();
1368 recompute_at_end ();
1373 Region::send_change (const PropertyChange& what_changed)
1375 if (what_changed.empty()) {
1379 Stateful::send_change (what_changed);
1381 if (!Stateful::property_changes_suspended()) {
1383 /* Try and send a shared_pointer unless this is part of the constructor.
1388 boost::shared_ptr<Region> rptr = shared_from_this();
1389 RegionPropertyChanged (rptr, what_changed);
1391 /* no shared_ptr available, relax; */
1397 Region::overlap_equivalent (boost::shared_ptr<const Region> other) const
1399 return coverage (other->first_frame(), other->last_frame()) != Evoral::OverlapNone;
1403 Region::equivalent (boost::shared_ptr<const Region> other) const
1405 return _start == other->_start &&
1406 _position == other->_position &&
1407 _length == other->_length;
1411 Region::size_equivalent (boost::shared_ptr<const Region> other) const
1413 return _start == other->_start &&
1414 _length == other->_length;
1418 Region::region_list_equivalent (boost::shared_ptr<const Region> other) const
1420 return size_equivalent (other) && source_equivalent (other) && _name == other->_name;
1424 Region::source_deleted (boost::weak_ptr<Source>)
1428 if (!_session.deletion_in_progress()) {
1429 /* this is a very special case: at least one of the region's
1430 sources has bee deleted, so invalidate all references to
1431 ourselves. Do NOT do this during session deletion, because
1432 then we run the risk that this will actually result
1433 in this object being deleted (as refcnt goes to zero)
1434 while emitting DropReferences.
1442 Region::master_source_names ()
1444 SourceList::iterator i;
1446 vector<string> names;
1447 for (i = _master_sources.begin(); i != _master_sources.end(); ++i) {
1448 names.push_back((*i)->name());
1455 Region::set_master_sources (const SourceList& srcs)
1457 for (SourceList::const_iterator i = _master_sources.begin (); i != _master_sources.end(); ++i) {
1458 (*i)->dec_use_count ();
1461 _master_sources = srcs;
1462 assert (_sources.size() == _master_sources.size());
1464 for (SourceList::const_iterator i = _master_sources.begin (); i != _master_sources.end(); ++i) {
1465 (*i)->inc_use_count ();
1470 Region::source_equivalent (boost::shared_ptr<const Region> other) const
1475 if ((_sources.size() != other->_sources.size()) ||
1476 (_master_sources.size() != other->_master_sources.size())) {
1480 SourceList::const_iterator i;
1481 SourceList::const_iterator io;
1483 for (i = _sources.begin(), io = other->_sources.begin(); i != _sources.end() && io != other->_sources.end(); ++i, ++io) {
1484 if ((*i)->id() != (*io)->id()) {
1489 for (i = _master_sources.begin(), io = other->_master_sources.begin(); i != _master_sources.end() && io != other->_master_sources.end(); ++i, ++io) {
1490 if ((*i)->id() != (*io)->id()) {
1499 Region::any_source_equivalent (boost::shared_ptr<const Region> other) const
1505 SourceList::const_iterator i;
1506 SourceList::const_iterator io;
1508 for (i = _sources.begin(), io = other->_sources.begin(); i != _sources.end() && io != other->_sources.end(); ++i, ++io) {
1509 if ((*i)->id() == (*io)->id()) {
1518 Region::source_string () const
1520 //string res = itos(_sources.size());
1523 res << _sources.size() << ":";
1525 SourceList::const_iterator i;
1527 for (i = _sources.begin(); i != _sources.end(); ++i) {
1528 res << (*i)->id() << ":";
1531 for (i = _master_sources.begin(); i != _master_sources.end(); ++i) {
1532 res << (*i)->id() << ":";
1539 Region::deep_sources (std::set<boost::shared_ptr<Source> > & sources) const
1541 for (SourceList::const_iterator i = _sources.begin(); i != _sources.end(); ++i) {
1543 boost::shared_ptr<PlaylistSource> ps = boost::dynamic_pointer_cast<PlaylistSource> (*i);
1546 if (sources.find (ps) == sources.end()) {
1547 /* (Playlist)Source not currently in
1548 accumulating set, so recurse.
1550 ps->playlist()->deep_sources (sources);
1554 /* add this source */
1555 sources.insert (*i);
1558 for (SourceList::const_iterator i = _master_sources.begin(); i != _master_sources.end(); ++i) {
1560 boost::shared_ptr<PlaylistSource> ps = boost::dynamic_pointer_cast<PlaylistSource> (*i);
1563 if (sources.find (ps) == sources.end()) {
1564 /* (Playlist)Source not currently in
1565 accumulating set, so recurse.
1567 ps->playlist()->deep_sources (sources);
1571 /* add this source */
1572 sources.insert (*i);
1577 Region::uses_source (boost::shared_ptr<const Source> source, bool shallow) const
1579 for (SourceList::const_iterator i = _sources.begin(); i != _sources.end(); ++i) {
1585 boost::shared_ptr<PlaylistSource> ps = boost::dynamic_pointer_cast<PlaylistSource> (*i);
1588 if (ps->playlist()->uses_source (source)) {
1595 for (SourceList::const_iterator i = _master_sources.begin(); i != _master_sources.end(); ++i) {
1601 boost::shared_ptr<PlaylistSource> ps = boost::dynamic_pointer_cast<PlaylistSource> (*i);
1604 if (ps->playlist()->uses_source (source)) {
1616 Region::source_length(uint32_t n) const
1618 assert (n < _sources.size());
1619 return _sources[n]->length (_position - _start);
1623 Region::verify_length (framecnt_t& len)
1625 if (source() && (source()->destructive() || source()->length_mutable())) {
1629 framecnt_t maxlen = 0;
1631 for (uint32_t n = 0; n < _sources.size(); ++n) {
1632 maxlen = max (maxlen, source_length(n) - _start);
1635 len = min (len, maxlen);
1641 Region::verify_start_and_length (framepos_t new_start, framecnt_t& new_length)
1643 if (source() && (source()->destructive() || source()->length_mutable())) {
1647 framecnt_t maxlen = 0;
1649 for (uint32_t n = 0; n < _sources.size(); ++n) {
1650 maxlen = max (maxlen, source_length(n) - new_start);
1653 new_length = min (new_length, maxlen);
1659 Region::verify_start (framepos_t pos)
1661 if (source() && (source()->destructive() || source()->length_mutable())) {
1665 for (uint32_t n = 0; n < _sources.size(); ++n) {
1666 if (pos > source_length(n) - _length) {
1674 Region::verify_start_mutable (framepos_t& new_start)
1676 if (source() && (source()->destructive() || source()->length_mutable())) {
1680 for (uint32_t n = 0; n < _sources.size(); ++n) {
1681 if (new_start > source_length(n) - _length) {
1682 new_start = source_length(n) - _length;
1688 boost::shared_ptr<Region>
1689 Region::get_parent() const
1691 boost::shared_ptr<Playlist> pl (playlist());
1694 boost::shared_ptr<Region> r;
1695 boost::shared_ptr<Region const> grrr2 = boost::dynamic_pointer_cast<Region const> (shared_from_this());
1697 if (grrr2 && (r = _session.find_whole_file_parent (grrr2))) {
1698 return boost::static_pointer_cast<Region> (r);
1702 return boost::shared_ptr<Region>();
1706 Region::apply (Filter& filter, Progress* progress)
1708 return filter.run (shared_from_this(), progress);
1713 Region::maybe_invalidate_transients ()
1715 bool changed = !_onsets.empty();
1718 if (_valid_transients || changed) {
1719 send_change (PropertyChange (Properties::valid_transients));
1725 Region::transients (AnalysisFeatureList& afl)
1727 int cnt = afl.empty() ? 0 : 1;
1729 Region::merge_features (afl, _onsets, _position);
1730 Region::merge_features (afl, _user_transients, _position + _transient_user_start - _start);
1731 if (!_onsets.empty ()) {
1734 if (!_user_transients.empty ()) {
1739 // remove exact duplicates
1740 TransientDetector::cleanup_transients (afl, _session.frame_rate(), 0);
1745 Region::has_transients () const
1747 if (!_user_transients.empty ()) {
1748 assert (_valid_transients);
1751 if (!_onsets.empty ()) {
1758 Region::merge_features (AnalysisFeatureList& result, const AnalysisFeatureList& src, const frameoffset_t off) const
1760 for (AnalysisFeatureList::const_iterator x = src.begin(); x != src.end(); ++x) {
1761 const frameoffset_t p = (*x) + off;
1762 if (p < first_frame() || p > last_frame()) {
1765 result.push_back (p);
1770 Region::drop_sources ()
1772 for (SourceList::const_iterator i = _sources.begin (); i != _sources.end(); ++i) {
1773 (*i)->dec_use_count ();
1778 for (SourceList::const_iterator i = _master_sources.begin (); i != _master_sources.end(); ++i) {
1779 (*i)->dec_use_count ();
1782 _master_sources.clear ();
1786 Region::use_sources (SourceList const & s)
1788 set<boost::shared_ptr<Source> > unique_srcs;
1790 for (SourceList::const_iterator i = s.begin (); i != s.end(); ++i) {
1792 _sources.push_back (*i);
1793 (*i)->inc_use_count ();
1794 _master_sources.push_back (*i);
1795 (*i)->inc_use_count ();
1797 /* connect only once to DropReferences, even if sources are replicated
1800 if (unique_srcs.find (*i) == unique_srcs.end ()) {
1801 unique_srcs.insert (*i);
1802 (*i)->DropReferences.connect_same_thread (*this, boost::bind (&Region::source_deleted, this, boost::weak_ptr<Source>(*i)));
1808 Region::can_trim () const
1810 CanTrim ct = CanTrim (0);
1816 /* if not locked, we can always move the front later, and the end earlier
1819 ct = CanTrim (ct | FrontTrimLater | EndTrimEarlier);
1821 if (start() != 0 || can_trim_start_before_source_start ()) {
1822 ct = CanTrim (ct | FrontTrimEarlier);
1825 if (!_sources.empty()) {
1826 if ((start() + length()) < _sources.front()->length (0)) {
1827 ct = CanTrim (ct | EndTrimLater);
1835 Region::max_source_level () const
1839 for (SourceList::const_iterator i = _sources.begin(); i != _sources.end(); ++i) {
1840 lvl = max (lvl, (*i)->level());
1847 Region::is_compound () const
1849 return max_source_level() > 0;
1853 Region::post_set (const PropertyChange& pc)
1855 if (pc.contains (Properties::position)) {
1856 recompute_position_from_lock_style (0);
1861 Region::set_start_internal (framecnt_t s, const int32_t sub_num)
1867 Region::earliest_possible_position () const
1869 if (_start > _position) {
1872 return _position - _start;
1877 Region::latest_possible_frame () const
1879 framecnt_t minlen = max_framecnt;
1881 for (SourceList::const_iterator i = _sources.begin(); i != _sources.end(); ++i) {
1882 /* non-audio regions have a length that may vary based on their
1883 * position, so we have to pass it in the call.
1885 minlen = min (minlen, (*i)->length (_position));
1888 /* the latest possible last frame is determined by the current
1889 * position, plus the shortest source extent past _start.
1892 return _position + (minlen - _start) - 1;