2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1996--2015 Jan Nieuwenhuizen <janneke@gnu.org>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
23 #include "audio-element.hh"
27 class Audio_item : public Audio_element
30 Audio_column *audio_column_;
34 Audio_column *get_column () const;
36 virtual void render ();
39 Audio_item (Audio_item const &);
40 Audio_item &operator = (Audio_item const &);
43 // Audio_span_dynamic is open at the end of the interval, so the volume
44 // grows/diminshes toward a target, but whether it reaches it depends on the
45 // next Audio_span_dynamic in the performance. For example, a crescendo
46 // notated as mf < p is represented as [mf < x) [p ...) i.e. growth to some
47 // volume louder than mf followed by an abrupt change to p.
48 class Audio_span_dynamic : public Audio_element
51 static const Real MINIMUM_VOLUME;
52 static const Real MAXIMUM_VOLUME;
53 static const Real DEFAULT_VOLUME;
58 Real duration_; // = target moment - start moment
59 Real gain_; // = target volume - start volume
62 Moment get_start_moment () const { return start_moment_; }
63 Real get_start_volume () const { return start_volume_; }
64 Real get_duration () const { return duration_; }
65 void set_end_moment (Moment);
66 void set_volume (Real start, Real target);
67 Real get_volume (Moment) const;
68 Audio_span_dynamic (Moment mom, Real volume);
71 class Audio_key : public Audio_item
74 Audio_key (int acc, bool major);
80 class Audio_instrument : public Audio_item
83 Audio_instrument (string instrument_string);
88 class Audio_note : public Audio_item
91 Audio_note (Pitch p, Moment m, bool tie_event, Pitch transposition, int velocity);
93 // with tieWaitForNote, there might be a skip between the tied notes!
94 void tie_to (Audio_note *, Moment skip = 0);
95 Audio_note *tie_head ();
96 virtual string to_string () const;
101 Audio_span_dynamic *dynamic_;
108 class Audio_piano_pedal : public Audio_item
115 class Audio_text : public Audio_item
120 TEXT = 1, COPYRIGHT, TRACK_NAME, INSTRUMENT_NAME, LYRIC,
124 Audio_text (Audio_text::Type type, const string &text_string);
130 class Audio_tempo : public Audio_item
133 Audio_tempo (int per_minute_4);
138 class Audio_time_signature : public Audio_item
141 Audio_time_signature (int beats, int one_beat);
147 class Audio_control_change : public Audio_item
150 Audio_control_change (int control, int value);
156 int moment_to_ticks (Moment);
157 Real moment_to_real (Moment);
158 Moment remap_grace_duration (Moment);
160 #endif // AUDIO_ITEM_HH