cinelerra/vtrack.C

   1 #include "asset.h"
   2 #include "autoconf.h"
   3 #include "cache.h"
   4 #include "clip.h"
   5 #include "datatype.h"
   6 #include "edit.h"
   7 #include "edits.h"
   8 #include "edl.h"
   9 #include "edlsession.h"
  10 #include "filexml.h"
  11 #include "floatauto.h"
  12 #include "floatautos.h"
  13 #include "language.h"
  14 #include "localsession.h"
  15 #include "patch.h"
  16 #include "mainsession.h"
  17 #include "theme.h"
  18 #include "trackcanvas.h"
  19 #include "tracks.h"
  20 #include "transportque.inc"
  21 #include "units.h"
  22 #include "vautomation.h"
  23 #include "vedit.h"
  24 #include "vedits.h"
  25 #include "vframe.h"
  26 #include "vmodule.h"
  27 #include "vpluginset.h"
  28 #include "vtrack.h"
  29
  30 VTrack::VTrack(EDL *edl, Tracks *tracks)
  31  : Track(edl, tracks)
  32 {
  33         data_type = TRACK_VIDEO;
  34         draw = 1;
  35 }
  36
  37 VTrack::~VTrack()
  38 {
  39 }
  40
  41 int VTrack::create_objects()
  42 {
  43         Track::create_objects();
  44         automation = new VAutomation(edl, this);
  45         automation->create_objects();
  46         edits = new VEdits(edl, this);
  47         return 0;
  48 }
  49
  50 // Used by PlaybackEngine
  51 void VTrack::synchronize_params(Track *track)
  52 {
  53         Track::synchronize_params(track);
  54
  55         VTrack *vtrack = (VTrack*)track;
  56 }
  57
  58 // Used by EDL::operator=
  59 int VTrack::copy_settings(Track *track)
  60 {
  61         Track::copy_settings(track);
  62
  63         VTrack *vtrack = (VTrack*)track;
  64         return 0;
  65 }
  66
  67 int VTrack::vertical_span(Theme *theme)
  68 {
  69         int track_h = Track::vertical_span(theme);
  70         int patch_h = 0;
  71         if(expand_view)
  72         {
  73                 patch_h += theme->title_h + theme->play_h + theme->fade_h + theme->mode_h;
  74         }
  75         return MAX(track_h, patch_h);
  76 }
  77
  78
  79 PluginSet* VTrack::new_plugins()
  80 {
  81         return new VPluginSet(edl, this);
  82 }
  83
  84 int VTrack::load_defaults(BC_Hash *defaults)
  85 {
  86         Track::load_defaults(defaults);
  87         return 0;
  88 }
  89
  90 void VTrack::set_default_title()
  91 {
  92         Track *current = ListItem<Track>::owner->first;
  93         int i;
  94         for(i = 0; current; current = NEXT)
  95         {
  96                 if(current->data_type == TRACK_VIDEO) i++;
  97         }
  98         sprintf(title, _("Video %d"), i);
  99 }
 100
 101 int64_t VTrack::to_units(double position, int round)
 102 {
 103         if(round)
 104         {
 105                 return Units::round(position * edl->session->frame_rate);
 106         }
 107         else
 108         {
 109 // Kludge for rounding errors, just on a smaller scale than formal rounding
 110                 position *= edl->session->frame_rate;
 111                 return Units::to_int64(position);
 112         }
 113 }
 114
 115 double VTrack::to_doubleunits(double position)
 116 {
 117         return position * edl->session->frame_rate;
 118 }
 119
 120
 121 double VTrack::from_units(int64_t position)
 122 {
 123         return (double)position / edl->session->frame_rate;
 124 }
 125
 126
 127
 128
 129 int VTrack::identical(int64_t sample1, int64_t sample2)
 130 {
 131 // Units of frames
 132         if(labs(sample1 - sample2) <= 1) return 1; else return 0;
 133 }
 134
 135 int VTrack::save_header(FileXML *file)
 136 {
 137         file->tag.set_property("TYPE", "VIDEO");
 138         return 0;
 139 }
 140
 141 int VTrack::save_derived(FileXML *file)
 142 {
 143         return 0;
 144 }
 145
 146 int VTrack::load_header(FileXML *file, uint32_t load_flags)
 147 {
 148         return 0;
 149 }
 150
 151 int VTrack::load_derived(FileXML *file, uint32_t load_flags)
 152 {
 153         return 0;
 154 }
 155
 156
 157 int VTrack::direct_copy_possible(int64_t start, int direction, int use_nudge)
 158 {
 159         int i;
 160         if(use_nudge) start += nudge;
 161
 162 // Track size must equal output size
 163         if(track_w != edl->session->output_w || track_h != edl->session->output_h)
 164                 return 0;
 165
 166 // No automation must be present in the track
 167         if(!automation->direct_copy_possible(start, direction))
 168                 return 0;
 169
 170 // No plugin must be present
 171         if(plugin_used(start, direction))
 172                 return 0;
 173
 174 // No transition
 175         if(get_current_transition(start, direction, 0, 0))
 176                 return 0;
 177
 178         return 1;
 179 }
 180
 181
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 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197 int VTrack::create_derived_objs(int flash)
 198 {
 199         int i;
 200         edits = new VEdits(edl, this);
 201         return 0;
 202 }
 203
 204
 205 int VTrack::get_dimensions(double &view_start,
 206         double &view_units,
 207         double &zoom_units)
 208 {
 209         view_start = edl->local_session->view_start * edl->session->frame_rate;
 210         view_units = 0;
 211 //      view_units = Units::toframes(tracks->view_samples(), mwindow->session->sample_rate, mwindow->session->frame_rate);
 212         zoom_units = edl->local_session->zoom_sample / edl->session->sample_rate * edl->session->frame_rate;
 213 }
 214
 215 int VTrack::copy_derived(int64_t start, int64_t end, FileXML *xml)
 216 {
 217 // automation is copied in the Track::copy
 218         return 0;
 219 }
 220
 221 int VTrack::copy_automation_derived(AutoConf *auto_conf, int64_t start, int64_t end, FileXML *file)
 222 {
 223         return 0;
 224 }
 225
 226 int VTrack::paste_derived(int64_t start, int64_t end, int64_t total_length, FileXML *xml, int &current_channel)
 227 {
 228         return 0;
 229 }
 230
 231 int VTrack::paste_output(int64_t startproject, int64_t endproject, int64_t startsource, int64_t endsource, int layer, Asset *asset)
 232 {
 233         return 0;
 234 }
 235
 236 int VTrack::clear_derived(int64_t start, int64_t end)
 237 {
 238         return 0;
 239 }
 240
 241 int VTrack::paste_automation_derived(int64_t start, int64_t end, int64_t total_length, FileXML *xml, int shift_autos, int &current_pan)
 242 {
 243         return 0;
 244 }
 245
 246 int VTrack::clear_automation_derived(AutoConf *auto_conf, int64_t start, int64_t end, int shift_autos)
 247 {
 248         return 0;
 249 }
 250
 251 int VTrack::draw_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf)
 252 {
 253         return 0;
 254 }
 255
 256
 257 int VTrack::select_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y)
 258 {
 259         return 0;
 260 }
 261
 262
 263 int VTrack::move_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down)
 264 {
 265         return 0;
 266 }
 267
 268 int VTrack::draw_floating_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf, int flash)
 269 {
 270         return 0;
 271 }
 272
 273 int VTrack::is_playable(int64_t position, int direction)
 274 {
 275         int result = 0;
 276         float in_x, in_y, in_w, in_h;
 277         float out_x, out_y, out_w, out_h;
 278
 279         calculate_output_transfer(position,
 280                 direction,
 281                 in_x, in_y, in_w, in_h,
 282                 out_x, out_y, out_w, out_h);
 283
 284 //printf("VTrack::is_playable %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f\n",
 285 //in_x, in_y, in_w, in_h, out_x, out_y, out_w, out_h);
 286         if(out_w > 0 && out_h > 0)
 287                 result = 1;
 288         return result;
 289 }
 290
 291 void VTrack::calculate_input_transfer(Asset *asset,
 292         int64_t position,
 293         int direction,
 294         float &in_x,
 295         float &in_y,
 296         float &in_w,
 297         float &in_h,
 298         float &out_x,
 299         float &out_y,
 300         float &out_w,
 301         float &out_h)
 302 {
 303         float auto_x, auto_y, auto_z;
 304         float camera_z = 1;
 305         float camera_x = asset->width / 2;
 306         float camera_y = asset->height / 2;
 307 // camera and output coords
 308         float z[6], x[6], y[6];
 309
 310 //printf("VTrack::calculate_input_transfer %lld\n", position);
 311
 312 // get camera center in asset
 313         automation->get_camera(&auto_x,
 314                 &auto_y,
 315                 &auto_z,
 316                 position,
 317                 direction);
 318
 319         camera_z *= auto_z;
 320         camera_x += auto_x;
 321         camera_y += auto_y;
 322
 323 // get camera coords on asset
 324         x[0] = camera_x - (float)track_w / 2 / camera_z;
 325         y[0] = camera_y - (float)track_h / 2 / camera_z;
 326         x[1] = x[0] + (float)track_w / camera_z;
 327         y[1] = y[0] + (float)track_h / camera_z;
 328
 329 // get asset coords on camera
 330         x[2] = 0;
 331         y[2] = 0;
 332         x[3] = track_w;
 333         y[3] = track_h;
 334
 335 // crop asset coords on camera
 336         if(x[0] < 0)
 337         {
 338                 x[2] -= x[0] * camera_z;
 339                 x[0] = 0;
 340         }
 341         if(y[0] < 0)
 342         {
 343                 y[2] -= y[0] * camera_z;
 344                 y[0] = 0;
 345         }
 346         if(x[1] > asset->width)
 347         {
 348                 x[3] -= (x[1] - asset->width) * camera_z;
 349                 x[1] = asset->width;
 350         }
 351         if(y[1] > asset->height)
 352         {
 353                 y[3] -= (y[1] - asset->height) * camera_z;
 354                 y[1] = asset->height;
 355         }
 356
 357 // get output bounding box
 358         out_x = x[2];
 359         out_y = y[2];
 360         out_w = x[3] - x[2];
 361         out_h = y[3] - y[2];
 362
 363         in_x = x[0];
 364         in_y = y[0];
 365         in_w = x[1] - x[0];
 366         in_h = y[1] - y[0];
 367 // printf("VTrack::calculate_input_transfer %f %f %f %f -> %f %f %f %f\n",
 368 // in_x, in_y, in_w, in_h,
 369 // out_x, out_y, out_w, out_h);
 370 }
 371
 372 void VTrack::calculate_output_transfer(int64_t position,
 373         int direction,
 374         float &in_x,
 375         float &in_y,
 376         float &in_w,
 377         float &in_h,
 378         float &out_x,
 379         float &out_y,
 380         float &out_w,
 381         float &out_h)
 382 {
 383         float center_x, center_y, center_z;
 384         float x[4], y[4];
 385
 386         x[0] = 0;
 387         y[0] = 0;
 388         x[1] = track_w;
 389         y[1] = track_h;
 390
 391         automation->get_projector(&center_x,
 392                 &center_y,
 393                 &center_z,
 394                 position,
 395                 direction);
 396
 397         center_x += edl->session->output_w / 2;
 398         center_y += edl->session->output_h / 2;
 399
 400         x[2] = center_x - (track_w / 2) * center_z;
 401         y[2] = center_y - (track_h / 2) * center_z;
 402         x[3] = x[2] + track_w * center_z;
 403         y[3] = y[2] + track_h * center_z;
 404
 405 // Clip to boundaries of output
 406         if(x[2] < 0)
 407         {
 408                 x[0] -= (x[2] - 0) / center_z;
 409                 x[2] = 0;
 410         }
 411         if(y[2] < 0)
 412         {
 413                 y[0] -= (y[2] - 0) / center_z;
 414                 y[2] = 0;
 415         }
 416         if(x[3] > edl->session->output_w)
 417         {
 418                 x[1] -= (x[3] - edl->session->output_w) / center_z;
 419                 x[3] = edl->session->output_w;
 420         }
 421         if(y[3] > edl->session->output_h)
 422         {
 423                 y[1] -= (y[3] - edl->session->output_h) / center_z;
 424                 y[3] = edl->session->output_h;
 425         }
 426
 427         in_x = x[0];
 428         in_y = y[0];
 429         in_w = x[1] - x[0];
 430         in_h = y[1] - y[0];
 431         out_x = x[2];
 432         out_y = y[2];
 433         out_w = x[3] - x[2];
 434         out_h = y[3] - y[2];
 435 // printf("VTrack::calculate_output_transfer %f %f %f %f -> %f %f %f %f\n",
 436 // in_x, in_y, in_w, in_h,
 437 // out_x, out_y, out_w, out_h);
 438 }
 439
 440
 441
 442 int VTrack::get_projection(float &in_x1,
 443         float &in_y1,
 444         float &in_x2,
 445         float &in_y2,
 446         float &out_x1,
 447         float &out_y1,
 448         float &out_x2,
 449         float &out_y2,
 450         int frame_w,
 451         int frame_h,
 452         int64_t real_position,
 453         int direction)
 454 {
 455         float center_x, center_y, center_z;
 456         float x[4], y[4];
 457
 458         automation->get_projector(&center_x,
 459                 &center_y,
 460                 &center_z,
 461                 real_position,
 462                 direction);
 463
 464         x[0] = y[0] = 0;
 465         x[1] = frame_w;
 466         y[1] = frame_h;
 467
 468         center_x += edl->session->output_w / 2;
 469         center_y += edl->session->output_h / 2;
 470
 471         x[2] = center_x - (frame_w / 2) * center_z;
 472         y[2] = center_y - (frame_h / 2) * center_z;
 473         x[3] = x[2] + frame_w * center_z;
 474         y[3] = y[2] + frame_h * center_z;
 475
 476         if(x[2] < 0)
 477         {
 478                 x[0] -= x[2] / center_z;
 479                 x[2] = 0;
 480         }
 481         if(y[2] < 0)
 482         {
 483                 y[0] -= y[2] / center_z;
 484                 y[2] = 0;
 485         }
 486         if(x[3] > edl->session->output_w)
 487         {
 488                 x[1] -= (x[3] - edl->session->output_w) / center_z;
 489                 x[3] = edl->session->output_w;
 490         }
 491         if(y[3] > edl->session->output_h)
 492         {
 493                 y[1] -= (y[3] - edl->session->output_h) / center_z;
 494                 y[3] = edl->session->output_h;
 495         }
 496
 497         in_x1 = x[0];
 498         in_y1 = y[0];
 499         in_x2 = x[1];
 500         in_y2 = y[1];
 501         out_x1 = x[2];
 502         out_y1 = y[2];
 503         out_x2 = x[3];
 504         out_y2 = y[3];
 505         return 0;
 506 }
 507
 508
 509 void VTrack::translate(float offset_x, float offset_y, int do_camera)
 510 {
 511         int subscript;
 512         if(do_camera)
 513                 subscript = AUTOMATION_CAMERA_X;
 514         else
 515                 subscript = AUTOMATION_PROJECTOR_X;
 516
 517 // Translate default keyframe
 518         ((FloatAuto*)automation->autos[subscript]->default_auto)->value += offset_x;
 519         ((FloatAuto*)automation->autos[subscript + 1]->default_auto)->value += offset_y;
 520
 521 // Translate everyone else
 522         for(Auto *current = automation->autos[subscript]->first;
 523                 current;
 524                 current = NEXT)
 525         {
 526                 ((FloatAuto*)current)->value += offset_x;
 527         }
 528
 529         for(Auto *current = automation->autos[subscript + 1]->first;
 530                 current;
 531                 current = NEXT)
 532         {
 533                 ((FloatAuto*)current)->value += offset_y;
 534         }
 535 }
 536
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