4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
5 * Copyright (C) 2003-2016 Cinelerra CV contributors
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 // Base class for automation lists.
30 // Units are the native units for the track data type.
35 #include "filexml.inc"
38 #define AUTOS_VIRTUAL_HEIGHT 160
40 class Autos : public List<Auto>
43 Autos(EDL *edl, Track *track);
47 void resample(double old_rate, double new_rate);
49 virtual void create_objects();
50 void equivalent_output(Autos *autos, int64_t startproject, int64_t *result);
51 void copy_from(Autos *autos);
52 virtual Auto* new_auto();
53 // Get existing auto on or before position.
54 // If use_default is true, return default_auto if none exists
55 // on or before position.
56 // Return 0 if none exists and use_default is false.
57 // If ¤t is nonzero it is used as a starting point for searching.
58 Auto* get_prev_auto(int64_t position, int direction, Auto* ¤t, int use_default = 1);
59 Auto* get_prev_auto(int direction, Auto* ¤t);
60 Auto* get_next_auto(int64_t position, int direction, Auto* ¤t, int use_default = 1);
61 // Determine if a keyframe exists before creating it.
62 int auto_exists_for_editing(double position);
63 // Returns auto at exact position, null if non-existent. ignores autokeyframming and align on frames
64 Auto* get_auto_at_position(double position = -1);
65 Auto* get_auto(int id);
67 // Get keyframe for editing with creation
68 // create: <0: always new keyframe, =0: no new keyframe, >0: auto keyframe
69 Auto* get_auto_for_editing(double position=-1, int create=1);
71 // Insert keyframe at the point if it doesn't exist
72 // Interpolate its value if possible
73 Auto* insert_auto(int64_t position, Auto *templ=0);
74 void insert_track(Autos *automation,
78 virtual int load(FileXML *xml);
79 void remove_nonsequential(Auto *keyframe);
82 // Returns a type enumeration
85 virtual void get_extents(float *min,
87 int *coords_undefined,
93 // Default settings if no autos.
94 // Having a persistent keyframe created problems when files were loaded and
95 // we wanted to keep only 1 auto.
96 // Default auto has position 0 except in effects, where multiple default autos
105 AUTOMATION_TYPE_FLOAT,
106 AUTOMATION_TYPE_MASK,
109 AUTOMATION_TYPE_PLUGIN
114 virtual void dump(FILE *fp);
122 int insert(int64_t start, int64_t end);
123 int paste_silence(int64_t start, int64_t end);
124 // Copy for keyframe clipboard & drag & drop
125 // default_only - only copy the default keyframe
126 int copy(int64_t start,
131 // Paste for keyframe clipboard & drag & drop
132 // default_only - only paste the default keyframe
133 void paste(int64_t start,
139 // Stores the background rendering position in result
140 void clear(int64_t start,
143 virtual void set_automation_mode(int64_t start, int64_t end, int mode);
144 int clear_auto(int64_t position);
145 int save(FileXML *xml);
146 virtual int slope_adjustment(int64_t ax, double slope);
148 virtual int release_auto_derived() { return 0; }
150 int scale_time(float rate_scale, int scale_edits, int scale_autos, int64_t start, int64_t end);
152 // rendering utilities
153 int get_neighbors(int64_t start, int64_t end, Auto **before, Auto **after);
154 // 1 if automation doesn't change
155 virtual int automation_is_constant(int64_t start, int64_t end);
156 virtual double get_automation_constant(int64_t start, int64_t end);
157 int init_automation(int64_t &buffer_position,
158 int64_t &input_start,
162 int64_t input_position,
168 int init_slope(Auto **current_auto,
171 double &slope_position,
172 int64_t &input_start,
178 int get_slope(Auto **current_auto,
184 int64_t buffer_position,
187 int advance_slope(Auto **current_auto,
190 double &slope_position,
193 Auto* autoof(int64_t position); // return nearest auto equal to or after position
194 // 0 if after all autos
195 Auto* nearest_before(int64_t position); // return nearest auto before or 0
196 Auto* nearest_after(int64_t position); // return nearest auto after or 0