4 * Copyright (C) 2010 Adam Williams <broadcast at earthling dot net>
6 * This program 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 2 of the License, or
9 * (at your option) any later version.
11 * This program 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 this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include "arraylist.h"
30 #include "autoconf.inc"
31 #include "automation.inc"
37 #include "filexml.inc"
38 #include "floatautos.inc"
40 #include "indexable.inc"
41 #include "keyframe.inc"
46 #include "pluginset.inc"
47 #include "sharedlocation.inc"
49 #include "intautos.inc"
50 #include "trackcanvas.inc"
52 #include "transition.inc"
54 // UNITS ARE SAMPLES FOR ALL
56 class Track : public ListItem<Track>
59 Track(EDL *edl, Tracks *tracks);
63 void create_objects();
65 virtual int load_defaults(BC_Hash *defaults);
66 int load(FileXML *file, int track_offset, uint32_t load_flags);
67 virtual int save_header(FileXML *file) { return 0; };
68 virtual int save_derived(FileXML *file) { return 0; };
69 virtual int load_header(FileXML *file, uint32_t load_flags) { return 0; };
70 virtual int load_derived(FileXML *file, uint32_t load_flags) { return 0; };
71 void equivalent_output(Track *track, double *result);
74 virtual void copy_from(Track *track);
75 Track& operator=(Track& track);
76 virtual PluginSet* new_plugins() { return 0; };
77 // Synchronize playback numbers
78 virtual void synchronize_params(Track *track);
80 // Get number of pixels to display
81 virtual int vertical_span(Theme *theme);
82 int64_t horizontal_span();
83 void resample(double old_rate, double new_rate);
87 // Get length of track in seconds
89 // Get dimensions of source for convenience functions
90 void get_source_dimensions(double position, int &w, int &h);
93 void insert_asset(Asset *asset, EDL *nested_edl,
94 double length, double position, int track_number);
95 Plugin* insert_effect(const char *title, SharedLocation *shared_location,
96 KeyFrame *keyframe, PluginSet *plugin_set,
97 double start, double length, int plugin_type);
98 void insert_plugin_set(Track *track, int64_t position,
99 int64_t min_length, int edit_autos);
100 void detach_effect(Plugin *plugin);
101 // Insert a track from another EDL
102 void insert_track(Track *track, double position,
103 int replace_default, int edit_plugins, int edit_autos,
104 // Pad pasted sections to a minimum of this length.
106 void shuffle_edits(double start, double end, int first_track);
107 void reverse_edits(double start, double end, int first_track);
108 void align_edits(double start, double end, ArrayList<double> *times);
111 int is_muted(int64_t position, int direction); // Test muting status
113 void move_plugins_up(PluginSet *plugin_set);
114 void move_plugins_down(PluginSet *plugin_set);
115 void remove_pluginset(PluginSet *plugin_set);
116 void remove_asset(Indexable *asset);
118 // Used for determining a selection for editing so leave as int.
119 // converts the selection to SAMPLES OR FRAMES and stores in value
120 virtual int64_t to_units(double position, int round);
122 virtual double to_doubleunits(double position);
123 virtual double from_units(int64_t position);
126 // Positions are identical for handle modifications
127 virtual int identical(int64_t sample1, int64_t sample2) { return 0; };
129 // Get the plugin belonging to the set.
130 Plugin* get_current_plugin(double position,
131 int plugin_set, int direction, int convert_units, int use_nudge);
132 Plugin* get_current_transition(double position,
133 int direction, int convert_units, int use_nudge);
135 // detach shared effects referencing module
136 void detach_shared_effects(int module);
139 // Called by playable tracks to test for playable server.
140 // Descends the plugin tree without creating a virtual console.
141 // Used by PlayableTracks::is_playable.
142 int is_synthesis(int64_t position, int direction);
144 // Used by PlayableTracks::is_playable
145 // Returns 1 if the track is in the output boundaries.
146 virtual int is_playable(int64_t position, int direction);
148 // Test direct copy conditions common to all the rendering routines
149 virtual int direct_copy_possible(int64_t start, int direction, int use_nudge);
151 // Used by PlayableTracks::is_playable
152 int plugin_used(int64_t position, int64_t direction);
153 // align to frame boundary
154 int64_t frame_align(int64_t position, int round);
156 virtual int copy_settings(Track *track);
157 void shift_keyframes(int64_t position, int64_t length);
158 void shift_effects(int64_t position, int64_t length, int edit_autos);
159 void change_plugins(SharedLocation &old_location, SharedLocation &new_location, int do_swap);
160 void change_modules(int old_location, int new_location, int do_swap);
161 int plugin_exists(Plugin *plugin);
167 // Plugin set uses key frames for automation
168 ArrayList<PluginSet*> plugin_set;
169 Automation *automation;
171 // Vertical offset from top of timeline
175 // There is some debate on whether to expand gang from faders to
176 // dragging operations. This would allow every edit in a column to get dragged
179 char title[BCTEXTLEN];
182 // Nudge in track units. Positive shifts track earlier in time. This way
183 // the position variables only need to add the nudge.
185 // TRACK_AUDIO or TRACK_VIDEO
189 int load_automation(FileXML *file);
190 int load_edits(FileXML *file);
192 virtual int change_channels(int oldchannels, int newchannels) { return 0; };
193 virtual int dump(FILE *fp);
195 // ===================================== editing
196 int copy(double start, double end,
197 FileXML *file, const char *output_path = "");
198 int copy_assets(double start,
200 ArrayList<Asset*> *asset_list);
201 virtual int copy_derived(int64_t start, int64_t end, FileXML *file) { return 0; };
202 virtual int paste_derived(int64_t start, int64_t end,
203 int64_t total_length, FileXML *file, int ¤t_channel) { return 0; };
204 int blade(double position);
205 int clear(double start, double end,
206 int edit_edits, int edit_labels, int clear_plugins,
207 int edit_autos, int convert_units, Edits *trim_edits);
208 // Returns the point to restart background rendering at.
209 // -1 means nothing changed.
210 void clear_automation(double selectionstart, double selectionend,
211 int shift_autos /* = 1 */,
212 int default_only /* = 0 */);
213 void set_automation_mode(double selectionstart, double selectionend,
215 virtual int clear_automation_derived(AutoConf *auto_conf,
216 double selectionstart, double selectionend,
217 int shift_autos = 1) { return 0; };
218 virtual int clear_derived(double start,
219 double end) { return 0; };
221 int copy_automation(double selectionstart, double selectionend,
222 FileXML *file, int default_only, int active_only);
223 virtual int copy_automation_derived(AutoConf *auto_conf,
224 double selectionstart, double selectionend,
225 FileXML *file) { return 0; };
226 int paste_automation(double selectionstart, double total_length,
227 double frame_rate, int64_t sample_rate, FileXML *file,
228 int default_only, int active_only);
229 virtual int paste_automation_derived(double selectionstart, double selectionend,
230 double total_length, FileXML *file, int shift_autos, int ¤t_pan) { return 0; };
231 int paste_auto_silence(double start, double end);
232 virtual int paste_auto_silence_derived(int64_t start, int64_t end) { return 0; };
233 int scale_time(float rate_scale, int scale_edits, int scale_autos, int64_t start, int64_t end);
234 virtual int scale_time_derived(float rate_scale, int scale_edits, int scale_autos, int64_t start, int64_t end) { return 0; };
235 int purge_asset(Asset *asset);
236 int asset_used(Asset *asset);
237 int clear_handle(double start, double end,
238 int clear_labels, int clear_plugins, int edit_autos,
240 int paste_silence(double start, double end, int edit_plugins, int edit_autos);
241 virtual int select_translation(int cursor_x, int cursor_y) { return 0; }; // select video coordinates for frame
242 virtual int update_translation(int cursor_x, int cursor_y, int shift_down) { return 0; }; // move video coordinates
243 int select_auto(AutoConf *auto_conf, int cursor_x, int cursor_y);
244 virtual int select_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y) { return 0; };
245 int move_auto(AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down);
246 virtual int move_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down) { return 0; };
248 virtual int release_auto_derived() { return 0; };
249 // Return whether automation would prevent direct frame copies. Not fully implemented.
250 int automation_is_used(int64_t start, int64_t end);
251 virtual int automation_is_used_derived(int64_t start, int64_t end) { return 0; }
253 int popup_transition(int cursor_x, int cursor_y);
255 // Return 1 if the left handle was selected 2 if the right handle was selected 3 if the track isn't recordable
256 int modify_edithandles(double oldposition,
263 int modify_pluginhandles(double oldposition,
270 int select_edit(int cursor_x,
274 virtual int end_translation() { return 0; };
275 virtual int reset_translation(int64_t start, int64_t end) { return 0; };
276 int feather_edits(int64_t start, int64_t end, int64_t units);
277 int64_t get_feather(int64_t selectionstart, int64_t selectionend);
280 // Absolute number of this track
283 // get_dimensions is used for getting drawing regions so use floats for partial frames
284 // get the display dimensions in SAMPLES OR FRAMES
285 // virtual int get_dimensions(double &view_start,
286 // double &view_units,
287 // double &zoom_units) { return 0; };
288 // Longest time from current_position in which nothing changes
289 int64_t edit_change_duration(int64_t input_position,
290 int64_t input_length,
292 int test_transitions,
294 int64_t plugin_change_duration(int64_t input_position,
295 int64_t input_length,
298 // Utility for edit_change_duration.
299 int need_edit(Edit *current, int test_transitions);
300 // If the edit under position is playable.
301 // Used by PlayableTracks::is_playable.
302 int playable_edit(int64_t position, int direction);
304 // ===================================== for handles, titles, etc
306 int64_t old_view_start;
307 int pixel; // pixel position from top of track view
308 // Dimensions of this track if video
309 int track_w, track_h;
313 // Identification of the track