cinelerra-5.1/cinelerra/vtrack.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   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.
  10  *
  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.
  15  *
  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
  19  *
  20  */
  21
  22 #include "asset.h"
  23 #include "autoconf.h"
  24 #include "cache.h"
  25 #include "clip.h"
  26 #include "datatype.h"
  27 #include "edit.h"
  28 #include "edits.h"
  29 #include "edl.h"
  30 #include "edlsession.h"
  31 #include "filexml.h"
  32 #include "floatauto.h"
  33 #include "floatautos.h"
  34 #include "language.h"
  35 #include "localsession.h"
  36 #include "patch.h"
  37 #include "mainsession.h"
  38 #include "theme.h"
  39 #include "trackcanvas.h"
  40 #include "tracks.h"
  41 #include "transportque.inc"
  42 #include "units.h"
  43 #include "vautomation.h"
  44 #include "vedit.h"
  45 #include "vedits.h"
  46 #include "vframe.h"
  47 #include "vmodule.h"
  48 #include "vpluginset.h"
  49 #include "vtrack.h"
  50
  51 VTrack::VTrack(EDL *edl, Tracks *tracks)
  52  : Track(edl, tracks)
  53 {
  54         data_type = TRACK_VIDEO;
  55         draw = 1;
  56 }
  57
  58 VTrack::~VTrack()
  59 {
  60 }
  61
  62 void VTrack::create_objects()
  63 {
  64         Track::create_objects();
  65         automation = new VAutomation(edl, this);
  66         automation->create_objects();
  67         edits = new VEdits(edl, this);
  68 }
  69
  70 // Used by PlaybackEngine
  71 void VTrack::synchronize_params(Track *track)
  72 {
  73         Track::synchronize_params(track);
  74         //VTrack *vtrack = (VTrack*)track;
  75 }
  76
  77 // Used by EDL::operator=
  78 int VTrack::copy_settings(Track *track)
  79 {
  80         Track::copy_settings(track);
  81         //VTrack *vtrack = (VTrack*)track;
  82         return 0;
  83 }
  84
  85 int VTrack::vertical_span(Theme *theme)
  86 {
  87         int track_h = Track::vertical_span(theme);
  88         int patch_h = 0;
  89         if(expand_view)
  90         {
  91                 patch_h += theme->title_h + theme->play_h + theme->fade_h + theme->mode_h;
  92         }
  93         return MAX(track_h, patch_h);
  94 }
  95
  96
  97 PluginSet* VTrack::new_plugins()
  98 {
  99         return new VPluginSet(edl, this);
 100 }
 101
 102 int VTrack::load_defaults(BC_Hash *defaults)
 103 {
 104         Track::load_defaults(defaults);
 105         return 0;
 106 }
 107
 108 void VTrack::set_default_title()
 109 {
 110         Track *current = ListItem<Track>::list->first;
 111         int i;
 112         for(i = 0; current; current = NEXT)
 113         {
 114                 if(current->data_type == TRACK_VIDEO) i++;
 115         }
 116         sprintf(title, _("Video %d"), i);
 117         BC_Resources::encode_to_utf8(title, BCTEXTLEN);
 118 }
 119
 120 int64_t VTrack::to_units(double position, int round)
 121 {
 122         return round ? Units::round(position * edl->session->frame_rate) :
 123                 Units::to_int64(position * edl->session->frame_rate + 1e-6);
 124 }
 125
 126 double VTrack::to_doubleunits(double position)
 127 {
 128         return position * edl->session->frame_rate;
 129 }
 130
 131
 132 double VTrack::from_units(int64_t position)
 133 {
 134         return (double)position / edl->session->frame_rate;
 135 }
 136
 137
 138
 139
 140 int VTrack::identical(int64_t sample1, int64_t sample2)
 141 {
 142 // Units of frames
 143         if(labs(sample1 - sample2) <= 1) return 1; else return 0;
 144 }
 145
 146 int VTrack::save_header(FileXML *file)
 147 {
 148         file->tag.set_property("TYPE", "VIDEO");
 149         return 0;
 150 }
 151
 152 int VTrack::save_derived(FileXML *file)
 153 {
 154         return 0;
 155 }
 156
 157 int VTrack::load_header(FileXML *file, uint32_t load_flags)
 158 {
 159         return 0;
 160 }
 161
 162 int VTrack::load_derived(FileXML *file, uint32_t load_flags)
 163 {
 164         return 0;
 165 }
 166
 167
 168 int VTrack::direct_copy_possible(int64_t start, int direction, int use_nudge)
 169 {
 170         if(use_nudge) start += nudge;
 171
 172 // Track size must equal output size
 173         if(track_w != edl->session->output_w || track_h != edl->session->output_h)
 174                 return 0;
 175
 176         if(has_speed()) return 0;
 177
 178 // No automation must be present in the track
 179         if(!automation->direct_copy_possible(start, direction))
 180                 return 0;
 181
 182 // No plugin must be present
 183         if(plugin_used(start, direction))
 184                 return 0;
 185
 186 // No transition
 187         if(get_current_transition(start, direction, 0, 0))
 188                 return 0;
 189
 190         return 1;
 191 }
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209 int VTrack::create_derived_objs(int flash)
 210 {
 211         edits = new VEdits(edl, this);
 212         return 0;
 213 }
 214
 215
 216 // int VTrack::get_dimensions(double &view_start,
 217 //      double &view_units,
 218 //      double &zoom_units)
 219 // {
 220 //      view_start = edl->local_session->view_start * edl->session->frame_rate;
 221 //      view_units = 0;
 222 //      zoom_units = edl->local_session->zoom_sample / edl->session->sample_rate * edl->session->frame_rate;
 223 //      return 0;
 224 // }
 225
 226 int VTrack::copy_derived(int64_t start, int64_t end, FileXML *xml)
 227 {
 228 // automation is copied in the Track::copy
 229         return 0;
 230 }
 231
 232 int VTrack::copy_automation_derived(AutoConf *auto_conf, int64_t start, int64_t end, FileXML *file)
 233 {
 234         return 0;
 235 }
 236
 237 int VTrack::paste_derived(int64_t start, int64_t end, int64_t total_length, FileXML *xml, int &current_channel)
 238 {
 239         return 0;
 240 }
 241
 242 int VTrack::paste_output(int64_t startproject, int64_t endproject, int64_t startsource, int64_t endsource, int layer, Asset *asset)
 243 {
 244         return 0;
 245 }
 246
 247 int VTrack::clear_derived(int64_t start, int64_t end)
 248 {
 249         return 0;
 250 }
 251
 252 int VTrack::paste_automation_derived(int64_t start, int64_t end, int64_t total_length, FileXML *xml, int shift_autos, int &current_pan)
 253 {
 254         return 0;
 255 }
 256
 257 int VTrack::clear_automation_derived(AutoConf *auto_conf, int64_t start, int64_t end, int shift_autos)
 258 {
 259         return 0;
 260 }
 261
 262 int VTrack::draw_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf)
 263 {
 264         return 0;
 265 }
 266
 267
 268 int VTrack::select_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y)
 269 {
 270         return 0;
 271 }
 272
 273
 274 int VTrack::move_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down)
 275 {
 276         return 0;
 277 }
 278
 279 int VTrack::draw_floating_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf, int flash)
 280 {
 281         return 0;
 282 }
 283
 284 int VTrack::is_playable(int64_t position, int direction)
 285 {
 286         int result = 0;
 287         float in_x, in_y, in_w, in_h;
 288         float out_x, out_y, out_w, out_h;
 289
 290         calculate_output_transfer(position,
 291                 direction,
 292                 in_x, in_y, in_w, in_h,
 293                 out_x, out_y, out_w, out_h);
 294
 295 //printf("VTrack::is_playable %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f\n",
 296 //in_x, in_y, in_w, in_h, out_x, out_y, out_w, out_h);
 297         if(out_w > 0 && out_h > 0)
 298                 result = 1;
 299         return result;
 300 }
 301
 302 void VTrack::calculate_input_transfer(int asset_w, int asset_h,
 303         int64_t position, int direction,
 304         float &in_x, float &in_y, float &in_w, float &in_h,
 305         float &out_x, float &out_y, float &out_w, float &out_h)
 306 {
 307         float auto_x, auto_y, auto_z;
 308         float camera_z = 1.;
 309         float camera_x = asset_w / 2.;
 310         float camera_y = asset_h / 2.;
 311 // camera and output coords
 312         float x[6], y[6];
 313
 314 //printf("VTrack::calculate_input_transfer %jd\n", position);
 315
 316 // get camera center in asset
 317         automation->get_camera(&auto_x, &auto_y, &auto_z,
 318                 position, direction);
 319
 320         camera_z *= auto_z;
 321         camera_x += auto_x;
 322         camera_y += auto_y;
 323
 324 // get camera coords on asset
 325         x[0] = camera_x - (float)track_w / 2 / camera_z;
 326         y[0] = camera_y - (float)track_h / 2 / camera_z;
 327         x[1] = x[0] + (float)track_w / camera_z;
 328         y[1] = y[0] + (float)track_h / camera_z;
 329
 330 // get asset coords on camera
 331         x[2] = 0;
 332         y[2] = 0;
 333         x[3] = track_w;
 334         y[3] = track_h;
 335
 336 // crop asset coords on camera
 337         if(x[0] < 0)
 338         {
 339                 x[2] -= x[0] * camera_z;
 340                 x[0] = 0;
 341         }
 342         if(y[0] < 0)
 343         {
 344                 y[2] -= y[0] * camera_z;
 345                 y[0] = 0;
 346         }
 347         if(x[1] > asset_w)
 348         {
 349                 x[3] -= (x[1] - asset_w) * camera_z;
 350                 x[1] = asset_w;
 351         }
 352         if(y[1] > asset_h)
 353         {
 354                 y[3] -= (y[1] - asset_h) * camera_z;
 355                 y[1] = asset_h;
 356         }
 357
 358 // get output bounding box
 359         out_x = x[2];
 360         out_y = y[2];
 361         out_w = x[3] - x[2];
 362         out_h = y[3] - y[2];
 363
 364         in_x = x[0];
 365         in_y = y[0];
 366         in_w = x[1] - x[0];
 367         in_h = y[1] - y[0];
 368 // printf("VTrack::calculate_input_transfer %f %f %f %f -> %f %f %f %f\n",
 369 // in_x, in_y, in_w, in_h,
 370 // out_x, out_y, out_w, out_h);
 371 }
 372
 373 void VTrack::calculate_output_transfer(int64_t position, int direction,
 374         float &in_x, float &in_y, float &in_w, float &in_h,
 375         float &out_x, float &out_y, float &out_w, float &out_h)
 376 {
 377         float center_x, center_y, center_z;
 378         float x[4], y[4];
 379
 380         x[0] = 0;
 381         y[0] = 0;
 382         x[1] = track_w;
 383         y[1] = track_h;
 384
 385         automation->get_projector(&center_x,
 386                 &center_y,
 387                 &center_z,
 388                 position,
 389                 direction);
 390
 391         center_x += edl->session->output_w / 2;
 392         center_y += edl->session->output_h / 2;
 393
 394         x[2] = center_x - (track_w / 2) * center_z;
 395         y[2] = center_y - (track_h / 2) * center_z;
 396         x[3] = x[2] + track_w * center_z;
 397         y[3] = y[2] + track_h * center_z;
 398
 399 // Clip to boundaries of output
 400         if(x[2] < 0)
 401         {
 402                 x[0] -= (x[2] - 0) / center_z;
 403                 x[2] = 0;
 404         }
 405         if(y[2] < 0)
 406         {
 407                 y[0] -= (y[2] - 0) / center_z;
 408                 y[2] = 0;
 409         }
 410         if(x[3] > edl->session->output_w)
 411         {
 412                 x[1] -= (x[3] - edl->session->output_w) / center_z;
 413                 x[3] = edl->session->output_w;
 414         }
 415         if(y[3] > edl->session->output_h)
 416         {
 417                 y[1] -= (y[3] - edl->session->output_h) / center_z;
 418                 y[3] = edl->session->output_h;
 419         }
 420
 421         in_x = x[0];
 422         in_y = y[0];
 423         in_w = x[1] - x[0];
 424         in_h = y[1] - y[0];
 425         out_x = x[2];
 426         out_y = y[2];
 427         out_w = x[3] - x[2];
 428         out_h = y[3] - y[2];
 429 // printf("VTrack::calculate_output_transfer %f %f %f %f -> %f %f %f %f\n",
 430 // in_x, in_y, in_w, in_h,
 431 // out_x, out_y, out_w, out_h);
 432 }
 433
 434
 435
 436 int VTrack::get_projection(float &in_x1, float &in_y1, float &in_x2, float &in_y2,
 437         float &out_x1, float &out_y1, float &out_x2, float &out_y2,
 438         int frame_w, int frame_h, int64_t real_position, int direction)
 439 {
 440         float center_x, center_y, center_z;
 441         float x[4], y[4];
 442
 443         automation->get_projector(&center_x,
 444                 &center_y,
 445                 &center_z,
 446                 real_position,
 447                 direction);
 448
 449         x[0] = y[0] = 0;
 450         x[1] = frame_w;
 451         y[1] = frame_h;
 452
 453         center_x += edl->session->output_w / 2;
 454         center_y += edl->session->output_h / 2;
 455
 456         x[2] = center_x - (frame_w / 2) * center_z;
 457         y[2] = center_y - (frame_h / 2) * center_z;
 458         x[3] = x[2] + frame_w * center_z;
 459         y[3] = y[2] + frame_h * center_z;
 460
 461         if(x[2] < 0)
 462         {
 463                 x[0] -= x[2] / center_z;
 464                 x[2] = 0;
 465         }
 466         if(y[2] < 0)
 467         {
 468                 y[0] -= y[2] / center_z;
 469                 y[2] = 0;
 470         }
 471         if(x[3] > edl->session->output_w)
 472         {
 473                 x[1] -= (x[3] - edl->session->output_w) / center_z;
 474                 x[3] = edl->session->output_w;
 475         }
 476         if(y[3] > edl->session->output_h)
 477         {
 478                 y[1] -= (y[3] - edl->session->output_h) / center_z;
 479                 y[3] = edl->session->output_h;
 480         }
 481
 482         in_x1 = x[0];  in_y1 = y[0];  in_x2 = x[1];  in_y2 = y[1];
 483         out_x1 = x[2]; out_y1 = y[2]; out_x2 = x[3]; out_y2 = y[3];
 484         return 0;
 485 }
 486
 487
 488
 489 inline void addto_value(FloatAuto *fauto, float offset)
 490 {
 491         fauto->set_value(fauto->get_value() + offset);
 492 }
 493
 494
 495 void VTrack::translate(float offset_x, float offset_y, int do_camera)
 496 {
 497         int subscript;
 498         if(do_camera)
 499                 subscript = AUTOMATION_CAMERA_X;
 500         else
 501                 subscript = AUTOMATION_PROJECTOR_X;
 502
 503 // Translate default keyframe
 504         addto_value((FloatAuto*)automation->autos[subscript]->default_auto, offset_x);
 505         addto_value((FloatAuto*)automation->autos[subscript + 1]->default_auto, offset_y);
 506
 507 // Translate everyone else
 508         for(Auto *current = automation->autos[subscript]->first;
 509                 current;
 510                 current = NEXT)
 511         {
 512                 addto_value((FloatAuto*)current, offset_x);
 513         }
 514
 515         for(Auto *current = automation->autos[subscript + 1]->first;
 516                 current;
 517                 current = NEXT)
 518         {
 519                 addto_value((FloatAuto*)current, offset_y);
 520         }
 521 }
 522