2 Copyright (C) 2000-2006 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.
20 #ifndef __ardour_audio_region_h__
21 #define __ardour_audio_region_h__
26 #include "pbd/fastlog.h"
29 #include "ardour/ardour.h"
30 #include "ardour/automatable.h"
31 #include "ardour/automation_list.h"
32 #include "ardour/interthread_info.h"
33 #include "ardour/logcurve.h"
34 #include "ardour/region.h"
37 class AudioRegionReadTest;
38 class PlaylistReadTest;
42 namespace Properties {
43 extern PBD::PropertyDescriptor<bool> envelope_active;
44 extern PBD::PropertyDescriptor<bool> default_fade_in;
45 extern PBD::PropertyDescriptor<bool> default_fade_out;
46 extern PBD::PropertyDescriptor<bool> fade_in_active;
47 extern PBD::PropertyDescriptor<bool> fade_out_active;
48 extern PBD::PropertyDescriptor<float> scale_amplitude;
49 extern PBD::PropertyDescriptor<bool> fade_out_is_xfade;
50 extern PBD::PropertyDescriptor<bool> fade_out_is_short;
51 extern PBD::PropertyDescriptor<bool> fade_in_is_xfade;
52 extern PBD::PropertyDescriptor<bool> fade_in_is_short;
53 extern PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > fade_in;
54 extern PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > inverse_fade_in;
55 extern PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > fade_out;
56 extern PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > inverse_fade_out;
57 extern PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > envelope;
66 class AudioRegion : public Region
69 static void make_property_quarks ();
73 void copy_settings (boost::shared_ptr<const AudioRegion>);
75 bool source_equivalent (boost::shared_ptr<const Region>) const;
77 bool speed_mismatch (float) const;
79 boost::shared_ptr<AudioSource> audio_source (uint32_t n=0) const;
81 void set_scale_amplitude (gain_t);
82 gain_t scale_amplitude() const { return _scale_amplitude; }
84 void normalize (float, float target_in_dB = 0.0f);
85 double maximum_amplitude (Progress* p = 0) const;
87 bool envelope_active () const { return _envelope_active; }
88 bool fade_in_active () const { return _fade_in_active; }
89 bool fade_out_active () const { return _fade_out_active; }
91 bool fade_in_is_xfade() const { return _fade_in_is_xfade; }
92 void set_fade_in_is_xfade (bool yn);
93 bool fade_out_is_xfade() const { return _fade_out_is_xfade; }
94 void set_fade_out_is_xfade (bool yn);
96 bool fade_in_is_short() const { return _fade_in_is_short; }
97 void set_fade_in_is_short (bool yn);
98 bool fade_out_is_short() const { return _fade_out_is_short; }
99 void set_fade_out_is_short (bool yn);
101 boost::shared_ptr<AutomationList> fade_in() { return _fade_in.val (); }
102 boost::shared_ptr<AutomationList> inverse_fade_in() { return _inverse_fade_in.val (); }
103 boost::shared_ptr<AutomationList> fade_out() { return _fade_out.val (); }
104 boost::shared_ptr<AutomationList> inverse_fade_out() { return _inverse_fade_out.val (); }
105 boost::shared_ptr<AutomationList> envelope() { return _envelope.val (); }
107 Evoral::Range<framepos_t> body_range () const;
109 virtual framecnt_t read_peaks (PeakData *buf, framecnt_t npeaks,
110 framecnt_t offset, framecnt_t cnt,
111 uint32_t chan_n=0, double samples_per_unit= 1.0) const;
113 /* Readable interface */
115 virtual framecnt_t read (Sample*, framepos_t pos, framecnt_t cnt, int channel) const;
116 virtual framecnt_t readable_length() const { return length(); }
118 virtual framecnt_t read_at (Sample *buf, Sample *mixdown_buf, float *gain_buf,
121 uint32_t chan_n = 0) const;
123 virtual framecnt_t master_read_at (Sample *buf, Sample *mixdown_buf, float *gain_buf,
124 framepos_t position, framecnt_t cnt, uint32_t chan_n=0) const;
126 virtual framecnt_t read_raw_internal (Sample*, framepos_t, framecnt_t, int channel) const;
129 int set_state (const XMLNode&, int version);
131 static void set_default_fade (float steepness, framecnt_t len);
132 bool fade_in_is_default () const;
133 bool fade_out_is_default () const;
135 void set_fade_in_active (bool yn);
136 void set_fade_in_shape (FadeShape);
137 void set_fade_in_length (framecnt_t);
138 void set_fade_in (FadeShape, framecnt_t);
139 void set_fade_in (boost::shared_ptr<AutomationList>);
141 void set_fade_out_active (bool yn);
142 void set_fade_out_shape (FadeShape);
143 void set_fade_out_length (framecnt_t);
144 void set_fade_out (FadeShape, framecnt_t);
145 void set_fade_out (boost::shared_ptr<AutomationList>);
147 void set_default_fade_in ();
148 void set_default_fade_out ();
150 framecnt_t verify_xfade_bounds (framecnt_t, bool start);
152 void set_envelope_active (bool yn);
153 void set_default_envelope ();
155 int separate_by_channel (ARDOUR::Session&, std::vector<boost::shared_ptr<Region> >&) const;
159 boost::shared_ptr<Evoral::Control>
160 control(const Evoral::Parameter& id, bool create=false) {
161 return _automatable.control(id, create);
164 virtual boost::shared_ptr<const Evoral::Control>
165 control(const Evoral::Parameter& id) const {
166 return _automatable.control(id);
169 /* xfade/fade interactions */
171 void suspend_fade_in ();
172 void suspend_fade_out ();
173 void resume_fade_in ();
174 void resume_fade_out ();
176 void add_transient (framepos_t where);
177 void remove_transient (framepos_t where);
178 int set_transients (AnalysisFeatureList&);
179 int get_transients (AnalysisFeatureList&, bool force_new = false);
180 int update_transient (framepos_t old_position, framepos_t new_position);
181 int adjust_transients (frameoffset_t delta);
183 AudioIntervalResult find_silence (Sample, framecnt_t, InterThreadInfo&) const;
186 friend class RegionFactory;
188 AudioRegion (boost::shared_ptr<AudioSource>);
189 AudioRegion (const SourceList &);
190 AudioRegion (boost::shared_ptr<const AudioRegion>);
191 AudioRegion (boost::shared_ptr<const AudioRegion>, frameoffset_t offset);
192 AudioRegion (boost::shared_ptr<const AudioRegion>, const SourceList&);
193 AudioRegion (SourceList &);
196 friend class ::AudioRegionReadTest;
197 friend class ::PlaylistReadTest;
199 PBD::Property<bool> _envelope_active;
200 PBD::Property<bool> _default_fade_in;
201 PBD::Property<bool> _default_fade_out;
202 PBD::Property<bool> _fade_in_active;
203 PBD::Property<bool> _fade_out_active;
204 /** linear gain to apply to the whole region */
205 PBD::Property<gain_t> _scale_amplitude;
206 PBD::Property<bool> _fade_in_is_xfade;
207 PBD::Property<bool> _fade_out_is_xfade;
208 PBD::Property<bool> _fade_in_is_short;
209 PBD::Property<bool> _fade_out_is_short;
211 void register_properties ();
212 void post_set (const PBD::PropertyChange&);
215 void set_default_fades ();
217 void recompute_gain_at_end ();
218 void recompute_gain_at_start ();
220 framecnt_t read_from_sources (SourceList const &, framecnt_t, Sample *, framepos_t, framecnt_t, uint32_t) const;
222 void recompute_at_start ();
223 void recompute_at_end ();
225 void envelope_changed ();
226 void fade_in_changed ();
227 void fade_out_changed ();
228 void source_offset_changed ();
229 void listen_to_my_curves ();
230 void connect_to_analysis_changed ();
231 void connect_to_header_position_offset_changed ();
234 AutomationListProperty _fade_in;
235 AutomationListProperty _inverse_fade_in;
236 AutomationListProperty _fade_out;
237 AutomationListProperty _inverse_fade_out;
238 AutomationListProperty _envelope;
239 Automatable _automatable;
240 uint32_t _fade_in_suspended;
241 uint32_t _fade_out_suspended;
243 boost::shared_ptr<ARDOUR::Region> get_single_other_xfade_region (bool start) const;
246 /* default constructor for derived (compound) types */
248 AudioRegion (Session& s, framepos_t, framecnt_t, std::string name);
250 int _set_state (const XMLNode&, int version, PBD::PropertyChange& what_changed, bool send_signal);
253 } /* namespace ARDOUR */
255 /* access from C objects */
258 int region_read_peaks_from_c (void *arg, uint32_t npeaks, uint32_t start, uint32_t length, intptr_t data, uint32_t n_chan, double samples_per_unit);
259 uint32_t region_length_from_c (void *arg);
260 uint32_t sourcefile_length_from_c (void *arg, double);
263 #endif /* __ardour_audio_region_h__ */