cinelerra-5.0/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 "format.inc"
  35 #include "language.h"
  36 #include "localsession.h"
  37 #include "patch.h"
  38 #include "mainsession.h"
  39 #include "theme.h"
  40 #include "trackcanvas.h"
  41 #include "tracks.h"
  42 #include "transportque.inc"
  43 #include "units.h"
  44 #include "vautomation.h"
  45 #include "vedit.h"
  46 #include "vedits.h"
  47 #include "vframe.h"
  48 #include "vmodule.h"
  49 #include "vpluginset.h"
  50 #include "vtrack.h"
  51
  52 VTrack::VTrack(EDL *edl, Tracks *tracks)
  53  : Track(edl, tracks)
  54 {
  55         data_type = TRACK_VIDEO;
  56         draw = 1;
  57 }
  58
  59 VTrack::~VTrack()
  60 {
  61 }
  62
  63 void VTrack::create_objects()
  64 {
  65         Track::create_objects();
  66         automation = new VAutomation(edl, this);
  67         automation->create_objects();
  68         edits = new VEdits(edl, this);
  69 }
  70
  71 // Used by PlaybackEngine
  72 void VTrack::synchronize_params(Track *track)
  73 {
  74         Track::synchronize_params(track);
  75         //VTrack *vtrack = (VTrack*)track;
  76 }
  77
  78 // Used by EDL::operator=
  79 int VTrack::copy_settings(Track *track)
  80 {
  81         Track::copy_settings(track);
  82         //VTrack *vtrack = (VTrack*)track;
  83         return 0;
  84 }
  85
  86 int VTrack::vertical_span(Theme *theme)
  87 {
  88         int track_h = Track::vertical_span(theme);
  89         int patch_h = 0;
  90         if(expand_view)
  91         {
  92                 patch_h += theme->title_h + theme->play_h + theme->fade_h + theme->mode_h;
  93         }
  94         return MAX(track_h, patch_h);
  95 }
  96
  97
  98 PluginSet* VTrack::new_plugins()
  99 {
 100         return new VPluginSet(edl, this);
 101 }
 102
 103 int VTrack::load_defaults(BC_Hash *defaults)
 104 {
 105         Track::load_defaults(defaults);
 106         return 0;
 107 }
 108
 109 void VTrack::set_default_title()
 110 {
 111         Track *current = ListItem<Track>::owner->first;
 112         int i;
 113         for(i = 0; current; current = NEXT)
 114         {
 115                 if(current->data_type == TRACK_VIDEO) i++;
 116         }
 117         sprintf(title, _("Video %d"), i);
 118 }
 119
 120 int64_t VTrack::to_units(double position, int round)
 121 {
 122         if(round)
 123         {
 124                 return Units::round(position * edl->session->frame_rate);
 125         }
 126         else
 127         {
 128 // Kludge for rounding errors, just on a smaller scale than formal rounding
 129                 position *= edl->session->frame_rate;
 130                 return Units::to_int64(position);
 131         }
 132 }
 133
 134 double VTrack::to_doubleunits(double position)
 135 {
 136         return position * edl->session->frame_rate;
 137 }
 138
 139
 140 double VTrack::from_units(int64_t position)
 141 {
 142         return (double)position / edl->session->frame_rate;
 143 }
 144
 145
 146
 147
 148 int VTrack::identical(int64_t sample1, int64_t sample2)
 149 {
 150 // Units of frames
 151         if(labs(sample1 - sample2) <= 1) return 1; else return 0;
 152 }
 153
 154 int VTrack::save_header(FileXML *file)
 155 {
 156         file->tag.set_property("TYPE", "VIDEO");
 157         return 0;
 158 }
 159
 160 int VTrack::save_derived(FileXML *file)
 161 {
 162         return 0;
 163 }
 164
 165 int VTrack::load_header(FileXML *file, uint32_t load_flags)
 166 {
 167         return 0;
 168 }
 169
 170 int VTrack::load_derived(FileXML *file, uint32_t load_flags)
 171 {
 172         return 0;
 173 }
 174
 175
 176 int VTrack::direct_copy_possible(int64_t start, int direction, int use_nudge)
 177 {
 178         if(use_nudge) start += nudge;
 179
 180 // Track size must equal output size
 181         if(track_w != edl->session->output_w || track_h != edl->session->output_h)
 182                 return 0;
 183
 184         if(has_speed()) return 0;
 185
 186 // No automation must be present in the track
 187         if(!automation->direct_copy_possible(start, direction))
 188                 return 0;
 189
 190 // No plugin must be present
 191         if(plugin_used(start, direction))
 192                 return 0;
 193
 194 // No transition
 195         if(get_current_transition(start, direction, 0, 0))
 196                 return 0;
 197
 198         return 1;
 199 }
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217 int VTrack::create_derived_objs(int flash)
 218 {
 219         edits = new VEdits(edl, this);
 220         return 0;
 221 }
 222
 223
 224 // int VTrack::get_dimensions(double &view_start,
 225 //      double &view_units,
 226 //      double &zoom_units)
 227 // {
 228 //      view_start = edl->local_session->view_start * edl->session->frame_rate;
 229 //      view_units = 0;
 230 //      zoom_units = edl->local_session->zoom_sample / edl->session->sample_rate * edl->session->frame_rate;
 231 //      return 0;
 232 // }
 233
 234 int VTrack::copy_derived(int64_t start, int64_t end, FileXML *xml)
 235 {
 236 // automation is copied in the Track::copy
 237         return 0;
 238 }
 239
 240 int VTrack::copy_automation_derived(AutoConf *auto_conf, int64_t start, int64_t end, FileXML *file)
 241 {
 242         return 0;
 243 }
 244
 245 int VTrack::paste_derived(int64_t start, int64_t end, int64_t total_length, FileXML *xml, int &current_channel)
 246 {
 247         return 0;
 248 }
 249
 250 int VTrack::paste_output(int64_t startproject, int64_t endproject, int64_t startsource, int64_t endsource, int layer, Asset *asset)
 251 {
 252         return 0;
 253 }
 254
 255 int VTrack::clear_derived(int64_t start, int64_t end)
 256 {
 257         return 0;
 258 }
 259
 260 int VTrack::paste_automation_derived(int64_t start, int64_t end, int64_t total_length, FileXML *xml, int shift_autos, int &current_pan)
 261 {
 262         return 0;
 263 }
 264
 265 int VTrack::clear_automation_derived(AutoConf *auto_conf, int64_t start, int64_t end, int shift_autos)
 266 {
 267         return 0;
 268 }
 269
 270 int VTrack::draw_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf)
 271 {
 272         return 0;
 273 }
 274
 275
 276 int VTrack::select_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y)
 277 {
 278         return 0;
 279 }
 280
 281
 282 int VTrack::move_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down)
 283 {
 284         return 0;
 285 }
 286
 287 int VTrack::draw_floating_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf, int flash)
 288 {
 289         return 0;
 290 }
 291
 292 int VTrack::is_playable(int64_t position, int direction)
 293 {
 294         int result = 0;
 295         float in_x, in_y, in_w, in_h;
 296         float out_x, out_y, out_w, out_h;
 297
 298         calculate_output_transfer(position,
 299                 direction,
 300                 in_x, in_y, in_w, in_h,
 301                 out_x, out_y, out_w, out_h);
 302
 303 //printf("VTrack::is_playable %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f %0.0f\n",
 304 //in_x, in_y, in_w, in_h, out_x, out_y, out_w, out_h);
 305         if(out_w > 0 && out_h > 0)
 306                 result = 1;
 307         return result;
 308 }
 309
 310 void VTrack::calculate_input_transfer(int asset_w, int asset_h,
 311         int64_t position, int direction,
 312         float &in_x, float &in_y, float &in_w, float &in_h,
 313         float &out_x, float &out_y, float &out_w, float &out_h)
 314 {
 315         float auto_x, auto_y, auto_z;
 316         float camera_z = 1.;
 317         float camera_x = asset_w / 2.;
 318         float camera_y = asset_h / 2.;
 319 // camera and output coords
 320         float x[6], y[6];
 321
 322 //printf("VTrack::calculate_input_transfer " _LD "\n", position);
 323
 324 // get camera center in asset
 325         automation->get_camera(&auto_x, &auto_y, &auto_z,
 326                 position, direction);
 327
 328         camera_z *= auto_z;
 329         camera_x += auto_x;
 330         camera_y += auto_y;
 331
 332 // get camera coords on asset
 333         x[0] = camera_x - (float)track_w / 2 / camera_z;
 334         y[0] = camera_y - (float)track_h / 2 / camera_z;
 335         x[1] = x[0] + (float)track_w / camera_z;
 336         y[1] = y[0] + (float)track_h / camera_z;
 337
 338 // get asset coords on camera
 339         x[2] = 0;
 340         y[2] = 0;
 341         x[3] = track_w;
 342         y[3] = track_h;
 343
 344 // crop asset coords on camera
 345         if(x[0] < 0)
 346         {
 347                 x[2] -= x[0] * camera_z;
 348                 x[0] = 0;
 349         }
 350         if(y[0] < 0)
 351         {
 352                 y[2] -= y[0] * camera_z;
 353                 y[0] = 0;
 354         }
 355         if(x[1] > asset_w)
 356         {
 357                 x[3] -= (x[1] - asset_w) * camera_z;
 358                 x[1] = asset_w;
 359         }
 360         if(y[1] > asset_h)
 361         {
 362                 y[3] -= (y[1] - asset_h) * camera_z;
 363                 y[1] = asset_h;
 364         }
 365
 366 // get output bounding box
 367         out_x = x[2];
 368         out_y = y[2];
 369         out_w = x[3] - x[2];
 370         out_h = y[3] - y[2];
 371
 372         in_x = x[0];
 373         in_y = y[0];
 374         in_w = x[1] - x[0];
 375         in_h = y[1] - y[0];
 376 // printf("VTrack::calculate_input_transfer %f %f %f %f -> %f %f %f %f\n",
 377 // in_x, in_y, in_w, in_h,
 378 // out_x, out_y, out_w, out_h);
 379 }
 380
 381 void VTrack::calculate_output_transfer(int64_t position, int direction,
 382         float &in_x, float &in_y, float &in_w, float &in_h,
 383         float &out_x, float &out_y, float &out_w, float &out_h)
 384 {
 385         float center_x, center_y, center_z;
 386         float x[4], y[4];
 387
 388         x[0] = 0;
 389         y[0] = 0;
 390         x[1] = track_w;
 391         y[1] = track_h;
 392
 393         automation->get_projector(&center_x,
 394                 &center_y,
 395                 &center_z,
 396                 position,
 397                 direction);
 398
 399         center_x += edl->session->output_w / 2;
 400         center_y += edl->session->output_h / 2;
 401
 402         x[2] = center_x - (track_w / 2) * center_z;
 403         y[2] = center_y - (track_h / 2) * center_z;
 404         x[3] = x[2] + track_w * center_z;
 405         y[3] = y[2] + track_h * center_z;
 406
 407 // Clip to boundaries of output
 408         if(x[2] < 0)
 409         {
 410                 x[0] -= (x[2] - 0) / center_z;
 411                 x[2] = 0;
 412         }
 413         if(y[2] < 0)
 414         {
 415                 y[0] -= (y[2] - 0) / center_z;
 416                 y[2] = 0;
 417         }
 418         if(x[3] > edl->session->output_w)
 419         {
 420                 x[1] -= (x[3] - edl->session->output_w) / center_z;
 421                 x[3] = edl->session->output_w;
 422         }
 423         if(y[3] > edl->session->output_h)
 424         {
 425                 y[1] -= (y[3] - edl->session->output_h) / center_z;
 426                 y[3] = edl->session->output_h;
 427         }
 428
 429         in_x = x[0];
 430         in_y = y[0];
 431         in_w = x[1] - x[0];
 432         in_h = y[1] - y[0];
 433         out_x = x[2];
 434         out_y = y[2];
 435         out_w = x[3] - x[2];
 436         out_h = y[3] - y[2];
 437 // printf("VTrack::calculate_output_transfer %f %f %f %f -> %f %f %f %f\n",
 438 // in_x, in_y, in_w, in_h,
 439 // out_x, out_y, out_w, out_h);
 440 }
 441
 442
 443
 444 int VTrack::get_projection(float &in_x1, float &in_y1, float &in_x2, float &in_y2,
 445         float &out_x1, float &out_y1, float &out_x2, float &out_y2,
 446         int frame_w, int frame_h, int64_t real_position, int direction)
 447 {
 448         float center_x, center_y, center_z;
 449         float x[4], y[4];
 450
 451         automation->get_projector(&center_x,
 452                 &center_y,
 453                 &center_z,
 454                 real_position,
 455                 direction);
 456
 457         x[0] = y[0] = 0;
 458         x[1] = frame_w;
 459         y[1] = frame_h;
 460
 461         center_x += edl->session->output_w / 2;
 462         center_y += edl->session->output_h / 2;
 463
 464         x[2] = center_x - (frame_w / 2) * center_z;
 465         y[2] = center_y - (frame_h / 2) * center_z;
 466         x[3] = x[2] + frame_w * center_z;
 467         y[3] = y[2] + frame_h * center_z;
 468
 469         if(x[2] < 0)
 470         {
 471                 x[0] -= x[2] / center_z;
 472                 x[2] = 0;
 473         }
 474         if(y[2] < 0)
 475         {
 476                 y[0] -= y[2] / center_z;
 477                 y[2] = 0;
 478         }
 479         if(x[3] > edl->session->output_w)
 480         {
 481                 x[1] -= (x[3] - edl->session->output_w) / center_z;
 482                 x[3] = edl->session->output_w;
 483         }
 484         if(y[3] > edl->session->output_h)
 485         {
 486                 y[1] -= (y[3] - edl->session->output_h) / center_z;
 487                 y[3] = edl->session->output_h;
 488         }
 489
 490         in_x1 = x[0];  in_y1 = y[0];  in_x2 = x[1];  in_y2 = y[1];
 491         out_x1 = x[2]; out_y1 = y[2]; out_x2 = x[3]; out_y2 = y[3];
 492         return 0;
 493 }
 494
 495
 496 void VTrack::translate(float offset_x, float offset_y, int do_camera)
 497 {
 498         int subscript;
 499         if(do_camera)
 500                 subscript = AUTOMATION_CAMERA_X;
 501         else
 502                 subscript = AUTOMATION_PROJECTOR_X;
 503
 504 // Translate default keyframe
 505         ((FloatAuto*)automation->autos[subscript]->default_auto)->value += offset_x;
 506         ((FloatAuto*)automation->autos[subscript + 1]->default_auto)->value += offset_y;
 507
 508 // Translate everyone else
 509         for(Auto *current = automation->autos[subscript]->first;
 510                 current;
 511                 current = NEXT)
 512         {
 513                 ((FloatAuto*)current)->value += offset_x;
 514         }
 515
 516         for(Auto *current = automation->autos[subscript + 1]->first;
 517                 current;
 518                 current = NEXT)
 519         {
 520                 ((FloatAuto*)current)->value += offset_y;
 521         }
 522 }
 523