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,
98 Plugin* insert_effect(const char *title,
99 SharedLocation *shared_location,
101 PluginSet *plugin_set,
105 void insert_plugin_set(Track *track,
109 void detach_effect(Plugin *plugin);
110 // Insert a track from another EDL
111 void insert_track(Track *track,
116 // Pad pasted sections to a minimum of this length.
118 void shuffle_edits(double start, double end, int first_track);
119 void reverse_edits(double start, double end, int first_track);
120 void align_edits(double start,
122 ArrayList<double> *times);
125 int is_muted(int64_t position, int direction); // Test muting status
127 void move_plugins_up(PluginSet *plugin_set);
128 void move_plugins_down(PluginSet *plugin_set);
129 void remove_pluginset(PluginSet *plugin_set);
130 void remove_asset(Indexable *asset);
132 // Used for determining a selection for editing so leave as int.
133 // converts the selection to SAMPLES OR FRAMES and stores in value
134 virtual int64_t to_units(double position, int round);
136 virtual double to_doubleunits(double position);
137 virtual double from_units(int64_t position);
141 // Positions are identical for handle modifications
142 virtual int identical(int64_t sample1, int64_t sample2) { return 0; };
144 // Get the plugin belonging to the set.
145 Plugin* get_current_plugin(double position,
150 Plugin* get_current_transition(double position,
155 // detach shared effects referencing module
156 void detach_shared_effects(int module);
159 // Called by playable tracks to test for playable server.
160 // Descends the plugin tree without creating a virtual console.
161 // Used by PlayableTracks::is_playable.
162 int is_synthesis(int64_t position,
165 // Used by PlayableTracks::is_playable
166 // Returns 1 if the track is in the output boundaries.
167 virtual int is_playable(int64_t position,
170 // Test direct copy conditions common to all the rendering routines
171 virtual int direct_copy_possible(int64_t start, int direction, int use_nudge);
173 // Used by PlayableTracks::is_playable
174 int plugin_used(int64_t position, int64_t direction);
177 virtual int copy_settings(Track *track);
178 void shift_keyframes(int64_t position, int64_t length);
179 void shift_effects(int64_t position, int64_t length, int edit_autos);
180 void change_plugins(SharedLocation &old_location,
181 SharedLocation &new_location,
183 void change_modules(int old_location,
186 int plugin_exists(Plugin *plugin);
192 // Plugin set uses key frames for automation
193 ArrayList<PluginSet*> plugin_set;
194 Automation *automation;
196 // Vertical offset from top of timeline
200 // There is some debate on whether to expand gang from faders to
201 // dragging operations. This would allow every edit in a column to get dragged
204 char title[BCTEXTLEN];
207 // Nudge in track units. Positive shifts track earlier in time. This way
208 // the position variables only need to add the nudge.
210 // TRACK_AUDIO or TRACK_VIDEO
214 int load_automation(FileXML *file);
215 int load_edits(FileXML *file);
217 virtual int change_channels(int oldchannels, int newchannels) { return 0; };
218 virtual int dump(FILE *fp);
222 // ===================================== editing
223 int copy(double start, double end,
224 FileXML *file, const char *output_path = "");
225 int copy_assets(double start,
227 ArrayList<Asset*> *asset_list);
228 virtual int copy_derived(int64_t start, int64_t end, FileXML *file) { return 0; };
229 virtual int paste_derived(int64_t start, int64_t end, int64_t total_length, FileXML *file, int ¤t_channel) { return 0; };
230 int clear(double start,
238 // Returns the point to restart background rendering at.
239 // -1 means nothing changed.
240 void clear_automation(double selectionstart,
242 int shift_autos /* = 1 */,
243 int default_only /* = 0 */);
244 void set_automation_mode(double selectionstart,
247 virtual int clear_automation_derived(AutoConf *auto_conf,
248 double selectionstart,
250 int shift_autos = 1) { return 0; };
251 virtual int clear_derived(double start,
252 double end) { return 0; };
254 int copy_automation(double selectionstart,
259 virtual int copy_automation_derived(AutoConf *auto_conf,
260 double selectionstart,
262 FileXML *file) { return 0; };
263 int paste_automation(double selectionstart,
270 virtual int paste_automation_derived(double selectionstart,
275 int ¤t_pan) { return 0; };
276 int paste_auto_silence(double start, double end);
277 virtual int paste_auto_silence_derived(int64_t start, int64_t end) { return 0; };
278 int scale_time(float rate_scale, int scale_edits, int scale_autos, int64_t start, int64_t end);
279 virtual int scale_time_derived(float rate_scale, int scale_edits, int scale_autos, int64_t start, int64_t end) { return 0; };
280 int purge_asset(Asset *asset);
281 int asset_used(Asset *asset);
282 int clear_handle(double start,
288 int paste_silence(double start, double end, int edit_plugins, int edit_autos);
289 virtual int select_translation(int cursor_x, int cursor_y) { return 0; }; // select video coordinates for frame
290 virtual int update_translation(int cursor_x, int cursor_y, int shift_down) { return 0; }; // move video coordinates
291 int select_auto(AutoConf *auto_conf, int cursor_x, int cursor_y);
292 virtual int select_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y) { return 0; };
293 int move_auto(AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down);
294 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; };
296 virtual int release_auto_derived() { return 0; };
297 // Return whether automation would prevent direct frame copies. Not fully implemented.
298 int automation_is_used(int64_t start, int64_t end);
299 virtual int automation_is_used_derived(int64_t start, int64_t end) { return 0; }
301 int popup_transition(int cursor_x, int cursor_y);
303 // Return 1 if the left handle was selected 2 if the right handle was selected 3 if the track isn't recordable
304 int modify_edithandles(double oldposition,
311 int modify_pluginhandles(double oldposition,
318 int select_edit(int cursor_x,
322 virtual int end_translation() { return 0; };
323 virtual int reset_translation(int64_t start, int64_t end) { return 0; };
324 int feather_edits(int64_t start, int64_t end, int64_t units);
325 int64_t get_feather(int64_t selectionstart, int64_t selectionend);
328 // Absolute number of this track
331 // get_dimensions is used for getting drawing regions so use floats for partial frames
332 // get the display dimensions in SAMPLES OR FRAMES
333 // virtual int get_dimensions(double &view_start,
334 // double &view_units,
335 // double &zoom_units) { return 0; };
336 // Longest time from current_position in which nothing changes
337 int64_t edit_change_duration(int64_t input_position,
338 int64_t input_length,
340 int test_transitions,
342 int64_t plugin_change_duration(int64_t input_position,
343 int64_t input_length,
346 // Utility for edit_change_duration.
347 int need_edit(Edit *current, int test_transitions);
348 // If the edit under position is playable.
349 // Used by PlayableTracks::is_playable.
350 int playable_edit(int64_t position, int direction);
352 // ===================================== for handles, titles, etc
354 int64_t old_view_start;
355 int pixel; // pixel position from top of track view
356 // Dimensions of this track if video
357 int track_w, track_h;
361 // Identification of the track