cinelerra-5.1/plugins/findobj/findobj.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2012 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 #include "affine.h"
  22 #include "bccolors.h"
  23 #include "clip.h"
  24 #include "filexml.h"
  25 #include "language.h"
  26 #include "findobj.h"
  27 #include "findobjwindow.h"
  28 #include "mutex.h"
  29 #include "overlayframe.h"
  30 #include "plugin.h"
  31 #include "pluginserver.h"
  32 #include "track.h"
  33
  34 #include <errno.h>
  35 #include <exception>
  36 #include <unistd.h>
  37
  38 REGISTER_PLUGIN(FindObjMain)
  39
  40 FindObjConfig::FindObjConfig()
  41 {
  42         algorithm = NO_ALGORITHM;
  43         use_flann = 1;
  44         draw_keypoints = 0;
  45         draw_scene_border = 0;
  46         replace_object = 0;
  47         draw_object_border = 0;
  48         object_x = 50;  object_y = 50;
  49         object_w = 100; object_h = 100;
  50         drag_object = 0;
  51         scene_x = 50;   scene_y = 50;
  52         scene_w = 100;  scene_h = 100;
  53         drag_scene = 0;
  54         scene_layer = 0;
  55         object_layer = 1;
  56         replace_layer = 2;
  57         blend = 100;
  58 }
  59
  60 void FindObjConfig::boundaries()
  61 {
  62         bclamp(drag_object, 0, 1); bclamp(drag_scene, 0, 1);
  63         bclamp(object_x, 0, 100);  bclamp(object_y, 0, 100);
  64         bclamp(object_w, 0, 100);  bclamp(object_h, 0, 100);
  65         bclamp(scene_x, 0, 100);   bclamp(scene_y, 0, 100);
  66         bclamp(scene_w, 0, 100);   bclamp(scene_h, 0, 100);
  67         bclamp(object_layer, MIN_LAYER, MAX_LAYER);
  68         bclamp(replace_layer, MIN_LAYER, MAX_LAYER);
  69         bclamp(scene_layer, MIN_LAYER, MAX_LAYER);
  70         bclamp(blend, MIN_BLEND, MAX_BLEND);
  71 }
  72
  73 int FindObjConfig::equivalent(FindObjConfig &that)
  74 {
  75         int result =
  76                 algorithm == that.algorithm &&
  77                 use_flann == that.use_flann &&
  78                 draw_keypoints == that.draw_keypoints &&
  79                 draw_scene_border == that.draw_scene_border &&
  80                 replace_object == that.replace_object &&
  81                 draw_object_border == that.draw_object_border &&
  82                 object_x == that.object_x && object_y == that.object_y &&
  83                 object_w == that.object_w && object_h == that.object_h &&
  84                 drag_object == that.drag_object &&
  85                 scene_x == that.scene_x && scene_y == that.scene_y &&
  86                 scene_w == that.scene_w && scene_h == that.scene_h &&
  87                 drag_scene == that.drag_scene &&
  88                 object_layer == that.object_layer &&
  89                 replace_layer == that.replace_layer &&
  90                 scene_layer == that.scene_layer &&
  91                 blend == that.blend;
  92         return result;
  93 }
  94
  95 void FindObjConfig::copy_from(FindObjConfig &that)
  96 {
  97         algorithm = that.algorithm;
  98         use_flann = that.use_flann;
  99         draw_keypoints = that.draw_keypoints;
 100         draw_scene_border = that.draw_scene_border;
 101         replace_object = that.replace_object;
 102         draw_object_border = that.draw_object_border;
 103         object_x = that.object_x;  object_y = that.object_y;
 104         object_w = that.object_w;  object_h = that.object_h;
 105         drag_object = that.drag_object;
 106         scene_x = that.scene_x;    scene_y = that.scene_y;
 107         scene_w = that.scene_w;    scene_h = that.scene_h;
 108         drag_scene = that.drag_scene;
 109         object_layer = that.object_layer;
 110         replace_layer = that.replace_layer;
 111         scene_layer = that.scene_layer;
 112         blend = that.blend;
 113 }
 114
 115 void FindObjConfig::interpolate(FindObjConfig &prev, FindObjConfig &next,
 116         int64_t prev_frame, int64_t next_frame, int64_t current_frame)
 117 {
 118         copy_from(prev);
 119 }
 120
 121
 122 FindObjMain::FindObjMain(PluginServer *server)
 123  : PluginVClient(server)
 124 {
 125         affine = 0;
 126         overlayer = 0;
 127
 128         cvmodel = BC_RGB888;
 129         w = h = 0;
 130         object = scene = replace = 0;
 131         object_x = object_y = 0;
 132         object_w = object_h = 0;
 133         scene_x = scene_y = 0;
 134         scene_w = scene_h = 0;
 135         object_layer = 0;
 136         scene_layer = 1;
 137         replace_layer = 2;
 138
 139         border_x1 = 0;  border_y1 = 0;
 140         border_x2 = 0;  border_y2 = 0;
 141         border_x3 = 0;  border_y3 = 0;
 142         border_x4 = 0;  border_y4 = 0;
 143
 144         obj_x1 = 0;     obj_y1 = 0;
 145         obj_x2 = 0;     obj_y2 = 0;
 146         obj_x3 = 0;     obj_y3 = 0;
 147         obj_x4 = 0;     obj_y4 = 0;
 148
 149         init_border = 1;
 150 }
 151
 152 FindObjMain::~FindObjMain()
 153 {
 154         delete affine;
 155         delete overlayer;
 156 }
 157
 158 const char* FindObjMain::plugin_title() { return N_("FindObj"); }
 159 int FindObjMain::is_realtime() { return 1; }
 160 int FindObjMain::is_multichannel() { return 1; }
 161
 162 NEW_WINDOW_MACRO(FindObjMain, FindObjWindow)
 163 LOAD_CONFIGURATION_MACRO(FindObjMain, FindObjConfig)
 164
 165 void FindObjMain::update_gui()
 166 {
 167         if( !thread ) return;
 168         if( !load_configuration() ) return;
 169         FindObjWindow *window = (FindObjWindow*)thread->window;
 170         window->lock_window("FindObjMain::update_gui");
 171         window->algorithm->set_text(FindObjAlgorithm::to_text(config.algorithm));
 172         window->use_flann->update(config.use_flann);
 173         window->drag_object->update(config.drag_object);
 174         window->object_x->update(config.object_x);
 175         window->object_x_text->update((float)config.object_x);
 176         window->object_y->update(config.object_y);
 177         window->object_y_text->update((float)config.object_y);
 178         window->object_w->update(config.object_w);
 179         window->object_w_text->update((float)config.object_w);
 180         window->object_h->update(config.object_h);
 181         window->object_h_text->update((float)config.object_h);
 182         window->drag_scene->update(config.drag_scene);
 183         window->scene_x->update(config.scene_x);
 184         window->scene_x_text->update((float)config.scene_x);
 185         window->scene_y->update(config.scene_y);
 186         window->scene_y_text->update((float)config.scene_y);
 187         window->scene_w->update(config.scene_w);
 188         window->scene_w_text->update((float)config.scene_w);
 189         window->scene_h->update(config.scene_h);
 190         window->scene_h_text->update((float)config.scene_h);
 191         window->draw_keypoints->update(config.draw_keypoints);
 192         window->draw_scene_border->update(config.draw_scene_border);
 193         window->replace_object->update(config.replace_object);
 194         window->draw_object_border->update(config.draw_object_border);
 195         window->object_layer->update( (int64_t)config.object_layer);
 196         window->replace_layer->update( (int64_t)config.replace_layer);
 197         window->scene_layer->update( (int64_t)config.scene_layer);
 198         window->blend->update( (int64_t)config.blend);
 199         window->flush();
 200         window->unlock_window();
 201 }
 202
 203 void FindObjMain::save_data(KeyFrame *keyframe)
 204 {
 205         FileXML output;
 206
 207 // cause data to be stored directly in text
 208         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 209         output.tag.set_title("FINDOBJ");
 210         output.tag.set_property("ALGORITHM", config.algorithm);
 211         output.tag.set_property("USE_FLANN", config.use_flann);
 212         output.tag.set_property("DRAG_OBJECT", config.drag_object);
 213         output.tag.set_property("OBJECT_X", config.object_x);
 214         output.tag.set_property("OBJECT_Y", config.object_y);
 215         output.tag.set_property("OBJECT_W", config.object_w);
 216         output.tag.set_property("OBJECT_H", config.object_h);
 217         output.tag.set_property("DRAG_SCENE", config.drag_scene);
 218         output.tag.set_property("SCENE_X", config.scene_x);
 219         output.tag.set_property("SCENE_Y", config.scene_y);
 220         output.tag.set_property("SCENE_W", config.scene_w);
 221         output.tag.set_property("SCENE_H", config.scene_h);
 222         output.tag.set_property("DRAW_KEYPOINTS", config.draw_keypoints);
 223         output.tag.set_property("DRAW_SCENE_BORDER", config.draw_scene_border);
 224         output.tag.set_property("REPLACE_OBJECT", config.replace_object);
 225         output.tag.set_property("DRAW_OBJECT_BORDER", config.draw_object_border);
 226         output.tag.set_property("OBJECT_LAYER", config.object_layer);
 227         output.tag.set_property("REPLACE_LAYER", config.replace_layer);
 228         output.tag.set_property("SCENE_LAYER", config.scene_layer);
 229         output.tag.set_property("BLEND", config.blend);
 230         output.append_tag();
 231         output.tag.set_title("/FINDOBJ");
 232         output.append_tag();
 233         output.append_newline();
 234         output.terminate_string();
 235 }
 236
 237 void FindObjMain::read_data(KeyFrame *keyframe)
 238 {
 239         FileXML input;
 240
 241         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 242
 243         int result = 0;
 244
 245         while( !(result = input.read_tag()) ) {
 246                 if( input.tag.title_is("FINDOBJ") ) {
 247                         config.algorithm = input.tag.get_property("ALGORITHM", config.algorithm);
 248                         config.use_flann = input.tag.get_property("USE_FLANN", config.use_flann);
 249                         config.object_x = input.tag.get_property("OBJECT_X", config.object_x);
 250                         config.object_y = input.tag.get_property("OBJECT_Y", config.object_y);
 251                         config.object_w = input.tag.get_property("OBJECT_W", config.object_w);
 252                         config.object_h = input.tag.get_property("OBJECT_H", config.object_h);
 253                         config.drag_object = input.tag.get_property("DRAG_OBJECT", config.drag_object);
 254                         config.scene_x = input.tag.get_property("SCENE_X", config.scene_x);
 255                         config.scene_y = input.tag.get_property("SCENE_Y", config.scene_y);
 256                         config.scene_w = input.tag.get_property("SCENE_W", config.scene_w);
 257                         config.scene_h = input.tag.get_property("SCENE_H", config.scene_h);
 258                         config.drag_scene = input.tag.get_property("DRAG_SCENE", config.drag_scene);
 259                         config.draw_keypoints = input.tag.get_property("DRAW_KEYPOINTS", config.draw_keypoints);
 260                         config.draw_scene_border = input.tag.get_property("DRAW_SCENE_BORDER", config.draw_scene_border);
 261                         config.replace_object = input.tag.get_property("REPLACE_OBJECT", config.replace_object);
 262                         config.draw_object_border = input.tag.get_property("DRAW_OBJECT_BORDER", config.draw_object_border);
 263                         config.object_layer = input.tag.get_property("OBJECT_LAYER", config.object_layer);
 264                         config.replace_layer = input.tag.get_property("REPLACE_LAYER", config.replace_layer);
 265                         config.scene_layer = input.tag.get_property("SCENE_LAYER", config.scene_layer);
 266                         config.blend = input.tag.get_property("BLEND", config.blend);
 267                 }
 268         }
 269
 270         config.boundaries();
 271 }
 272
 273 void FindObjMain::draw_line(VFrame *vframe, int x1, int y1, int x2, int y2)
 274 {
 275         vframe->draw_line(x1, y1, x2, y2);
 276 }
 277
 278 void FindObjMain::draw_rect(VFrame *vframe, int x1, int y1, int x2, int y2)
 279 {
 280         --x2;  --y2;
 281         draw_line(vframe, x1, y1, x2, y1);
 282         draw_line(vframe, x2, y1, x2, y2);
 283         draw_line(vframe, x2, y2, x1, y2);
 284         draw_line(vframe, x1, y2, x1, y1);
 285 }
 286
 287 void FindObjMain::draw_circle(VFrame *vframe, int x, int y, int r)
 288 {
 289         int x1 = x-r, x2 = x+r;
 290         int y1 = y-r, y2 = y+r;
 291         vframe->draw_smooth(x1,y, x1,y1, x,y1);
 292         vframe->draw_smooth(x,y1, x2,y1, x2,y);
 293         vframe->draw_smooth(x2,y, x2,y2, x,y2);
 294         vframe->draw_smooth(x,y2, x1,y2, x1,y);
 295 }
 296
 297 void FindObjMain::filter_matches(ptV &p1, ptV &p2, double ratio)
 298 {
 299         DMatches::iterator it;
 300         for( it=pairs.begin(); it!=pairs.end(); ++it ) {
 301                 DMatchV &m = *it;
 302                 if( m.size() == 2 && m[0].distance < m[1].distance*ratio ) {
 303                         p1.push_back(obj_keypts[m[0].queryIdx].pt);
 304                         p2.push_back(scn_keypts[m[0].trainIdx].pt);
 305                 }
 306         }
 307 }
 308
 309 void FindObjMain::to_mat(Mat &mat, int mcols, int mrows,
 310         VFrame *inp, int ix,int iy, BC_CModel mcolor_model)
 311 {
 312         int mcomp = BC_CModels::components(mcolor_model);
 313         int mbpp = BC_CModels::calculate_pixelsize(mcolor_model);
 314         int psz = mbpp / mcomp;
 315         int mdepth = psz < 2 ? CV_8U : CV_16U;
 316         if( mat.dims != 2 || mat.depth() != mdepth || mat.channels() != mcomp ||
 317             mat.cols != mcols || mat.rows != mrows ) {
 318                 mat.release();
 319         }
 320         if( mat.empty() ) {
 321                 int type = CV_MAKETYPE(mdepth, mcomp);
 322                 mat.create(mrows, mcols, type);
 323         }
 324         uint8_t *mat_rows[mrows];
 325         for( int y=0; y<mrows; ++y ) mat_rows[y] = mat.ptr(y);
 326         uint8_t **inp_rows = inp->get_rows();
 327         int ibpl = inp->get_bytes_per_line(), obpl = mcols * mbpp;
 328         int icolor_model = inp->get_color_model();
 329         BC_CModels::transfer(mat_rows, mcolor_model, 0,0, mcols,mrows, obpl,
 330                 inp_rows, icolor_model, ix,iy, mcols,mrows, ibpl, 0);
 331 //      VFrame vfrm(mat_rows[0], -1, mcols,mrows, mcolor_model, mat_rows[1]-mat_rows[0]);
 332 //      static int vfrm_no = 0; char vfn[64]; sprintf(vfn,"/tmp/dat/%06d.png", vfrm_no++);
 333 //      vfrm.write_png(vfn);
 334 }
 335
 336 void FindObjMain::detect(Mat &mat, KeyPointV &keypts,Mat &descrs)
 337 {
 338         keypts.clear();
 339         descrs.release();
 340         try {
 341                 detector->detectAndCompute(mat, noArray(), keypts, descrs);
 342         } catch(std::exception e) { printf(_("detector exception: %s\n"), e.what()); }
 343 }
 344
 345 void FindObjMain::match()
 346 {
 347         pairs.clear();
 348         try {
 349                 matcher->knnMatch(obj_descrs, scn_descrs, pairs, 2);
 350         } catch(std::exception e) { printf(_("match execption: %s\n"), e.what()); }
 351 }
 352
 353 Ptr<DescriptorMatcher> FindObjMain::flann_kdtree_matcher()
 354 { // trees=5
 355         const Ptr<flann::IndexParams>& indexParams =
 356                 makePtr<flann::KDTreeIndexParams>(5);
 357         const Ptr<flann::SearchParams>& searchParams =
 358                 makePtr<flann::SearchParams>();
 359         return makePtr<FlannBasedMatcher>(indexParams, searchParams);
 360 }
 361 Ptr<DescriptorMatcher> FindObjMain::flann_lshidx_matcher()
 362 { // table_number = 6#12, key_size = 12#20, multi_probe_level = 1#2
 363         const Ptr<flann::IndexParams>& indexParams =
 364                 makePtr<flann::LshIndexParams>(6, 12, 1);
 365         const Ptr<flann::SearchParams>& searchParams =
 366                 makePtr<flann::SearchParams>();
 367         return makePtr<FlannBasedMatcher>(indexParams, searchParams);
 368 }
 369 Ptr<DescriptorMatcher> FindObjMain::bf_matcher_norm_l2()
 370 {
 371         return BFMatcher::create(NORM_L2);
 372 }
 373 Ptr<DescriptorMatcher> FindObjMain::bf_matcher_norm_hamming()
 374 {
 375         return BFMatcher::create(NORM_HAMMING);
 376 }
 377
 378 #ifdef _SIFT
 379 void FindObjMain::set_sift()
 380 {
 381         cvmodel = BC_GREY8;
 382         detector = SIFT::create();
 383         matcher = config.use_flann ?
 384                 flann_kdtree_matcher() : bf_matcher_norm_l2();
 385 }
 386 #endif
 387 #ifdef _SURF
 388 void FindObjMain::set_surf()
 389 {
 390         cvmodel = BC_GREY8;
 391         detector = SURF::create(800);
 392         matcher = config.use_flann ?
 393                 flann_kdtree_matcher() : bf_matcher_norm_l2();
 394 }
 395 #endif
 396 #ifdef _ORB
 397 void FindObjMain::set_orb()
 398 {
 399         cvmodel = BC_GREY8;
 400         detector = ORB::create();
 401         matcher = config.use_flann ?
 402                 flann_lshidx_matcher() : bf_matcher_norm_hamming();
 403 }
 404 #endif
 405 #ifdef _AKAZE
 406 void FindObjMain::set_akaze()
 407 {
 408         cvmodel = BC_GREY8;
 409         detector = AKAZE::create();
 410         matcher = config.use_flann ?
 411                 flann_lshidx_matcher() : bf_matcher_norm_hamming();
 412 }
 413 #endif
 414 #ifdef _BRISK
 415 void FindObjMain::set_brisk()
 416 {
 417         cvmodel = BC_GREY8;
 418         detector = BRISK::create();
 419         matcher = config.use_flann ?
 420                 flann_lshidx_matcher() : bf_matcher_norm_hamming();
 421 }
 422 #endif
 423
 424 void FindObjMain::process_match()
 425 {
 426         if( config.algorithm == NO_ALGORITHM ) return;
 427         if( !config.replace_object &&
 428             !config.draw_scene_border &&
 429             !config.draw_keypoints ) return;
 430
 431         if( detector.empty() ) {
 432                 switch( config.algorithm ) {
 433 #ifdef _SIFT
 434                 case ALGORITHM_SIFT:   set_sift();   break;
 435 #endif
 436 #ifdef _SURF
 437                 case ALGORITHM_SURF:   set_surf();   break;
 438 #endif
 439 #ifdef _ORB
 440                 case ALGORITHM_ORB:    set_orb();    break;
 441 #endif
 442 #ifdef _AKAZE
 443                 case ALGORITHM_AKAZE:  set_akaze();  break;
 444 #endif
 445 #ifdef _BRISK
 446                 case ALGORITHM_BRISK:  set_brisk();  break;
 447 #endif
 448                 }
 449                 obj_keypts.clear();  obj_descrs.release();
 450                 to_mat(object_mat, object_w,object_h, object, object_x,object_y, cvmodel);
 451                 detect(object_mat, obj_keypts, obj_descrs);
 452 //printf("detect obj %d features\n", (int)obj_keypts.size());
 453         }
 454
 455         to_mat(scene_mat, scene_w,scene_h, scene, scene_x,scene_y, cvmodel);
 456         detect(scene_mat, scn_keypts, scn_descrs);
 457 //printf("detect scn %d features\n", (int)scn_keypts.size());
 458         match();
 459         ptV p1, p2;
 460         filter_matches(p1, p2);
 461         if( p1.size() < 4 ) return;
 462         Mat H = findHomography(p1, p2, RANSAC, 5.0);
 463         if( !H.dims || !H.rows || !H.cols ) {
 464 //printf("fail, size p1=%d,p2=%d\n",(int)p1.size(),(int)p2.size());
 465                 return;
 466         }
 467
 468         ptV src, dst;
 469         float obj_x1 = 0, obj_x2 = object_w;
 470         float obj_y1 = 0, obj_y2 = object_h;
 471         src.push_back(Point2f(obj_x1,obj_y1));
 472         src.push_back(Point2f(obj_x2,obj_y1));
 473         src.push_back(Point2f(obj_x2,obj_y2));
 474         src.push_back(Point2f(obj_x1,obj_y2));
 475         perspectiveTransform(src, dst, H);
 476
 477         border_x1 = dst[0].x + scene_x;  border_y1 = dst[0].y + scene_y;
 478         border_x2 = dst[1].x + scene_x;  border_y2 = dst[1].y + scene_y;
 479         border_x3 = dst[2].x + scene_x;  border_y3 = dst[2].y + scene_y;
 480         border_x4 = dst[3].x + scene_x;  border_y4 = dst[3].y + scene_y;
 481 //printf("src %f,%f  %f,%f  %f,%f  %f,%f\n",
 482 // src[0].x,src[0].y, src[1].x,src[1].y, src[2].x,src[2].y, src[3].x,src[3].y);
 483 //printf("dst %f,%f  %f,%f  %f,%f  %f,%f\n",
 484 // dst[0].x,dst[0].y, dst[1].x,dst[1].y, dst[2].x,dst[2].y, dst[3].x,dst[3].y);
 485 }
 486
 487 int FindObjMain::process_buffer(VFrame **frame, int64_t start_position, double frame_rate)
 488 {
 489         int prev_algorithm = config.algorithm;
 490         int prev_use_flann = config.use_flann;
 491
 492         if( load_configuration() )
 493                 init_border = 1;
 494
 495         if( prev_algorithm != config.algorithm ||
 496             prev_use_flann != config.use_flann ) {
 497                 detector.release();
 498                 matcher.release();
 499         }
 500
 501         object_layer = config.object_layer;
 502         scene_layer = config.scene_layer;
 503         replace_layer = config.replace_layer;
 504         Track *track = server->plugin->track;
 505         w = track->track_w;
 506         h = track->track_h;
 507
 508         int max_layer = PluginClient::get_total_buffers() - 1;
 509         object_layer = bclip(config.object_layer, 0, max_layer);
 510         scene_layer = bclip(config.scene_layer, 0, max_layer);
 511         replace_layer = bclip(config.replace_layer, 0, max_layer);
 512
 513         int cfg_w = (int)(w * config.object_w / 100.);
 514         int cfg_h = (int)(h * config.object_h / 100.);
 515         int cfg_x1 = (int)(w * config.object_x / 100. - cfg_w / 2);
 516         int cfg_y1 = (int)(h * config.object_y / 100. - cfg_h / 2);
 517         int cfg_x2 = cfg_x1 + cfg_w;
 518         int cfg_y2 = cfg_y1 + cfg_h;
 519         bclamp(cfg_x1, 0, w);  object_x = cfg_x1;
 520         bclamp(cfg_y1, 0, h);  object_y = cfg_y1;
 521         bclamp(cfg_x2, 0, w);  object_w = cfg_x2 - cfg_x1;
 522         bclamp(cfg_y2, 0, h);  object_h = cfg_y2 - cfg_y1;
 523
 524         cfg_w = (int)(w * config.scene_w / 100.);
 525         cfg_h = (int)(h * config.scene_h / 100.);
 526         cfg_x1 = (int)(w * config.scene_x / 100. - cfg_w / 2);
 527         cfg_y1 = (int)(h * config.scene_y / 100. - cfg_h / 2);
 528         cfg_x2 = cfg_x1 + cfg_w;
 529         cfg_y2 = cfg_y1 + cfg_h;
 530         bclamp(cfg_x1, 0, w);  scene_x = cfg_x1;
 531         bclamp(cfg_y1, 0, h);  scene_y = cfg_y1;
 532         bclamp(cfg_x2, 0, w);  scene_w = cfg_x2 - cfg_x1;
 533         bclamp(cfg_y2, 0, h);  scene_h = cfg_y2 - cfg_y1;
 534
 535 // Read in the input frames
 536         for( int i = 0; i < PluginClient::get_total_buffers(); i++ ) {
 537                 read_frame(frame[i], i, start_position, frame_rate, 0);
 538         }
 539
 540         object = frame[object_layer];
 541         scene = frame[scene_layer];
 542         replace = frame[replace_layer];
 543
 544         border_x1 = obj_x1;  border_y1 = obj_y1;
 545         border_x2 = obj_x2;  border_y2 = obj_y2;
 546         border_x3 = obj_x3;  border_y3 = obj_y3;
 547         border_x4 = obj_x4;  border_y4 = obj_y4;
 548
 549         if( scene_w > 0 && scene_h > 0 && object_w > 0 && object_h > 0 ) {
 550                 process_match();
 551         }
 552
 553         double w0 = init_border ? (init_border=0, 1.) : config.blend/100., w1 = 1. - w0;
 554         obj_x1 = border_x1*w0 + obj_x1*w1;  obj_y1 = border_y1*w0 + obj_y1*w1;
 555         obj_x2 = border_x2*w0 + obj_x2*w1;  obj_y2 = border_y2*w0 + obj_y2*w1;
 556         obj_x3 = border_x3*w0 + obj_x3*w1;  obj_y3 = border_y3*w0 + obj_y3*w1;
 557         obj_x4 = border_x4*w0 + obj_x4*w1;  obj_y4 = border_y4*w0 + obj_y4*w1;
 558
 559 // Replace object in the scene layer
 560         if( config.replace_object ) {
 561                 int cpus1 = get_project_smp() + 1;
 562                 if( !affine )
 563                         affine = new AffineEngine(cpus1, cpus1);
 564                 if( !overlayer )
 565                         overlayer = new OverlayFrame(cpus1);
 566
 567                 VFrame *temp = new_temp(scene->get_w(), scene->get_h(), scene->get_color_model());
 568                 temp->clear_frame();
 569                 float sx = 100./w, sy = 100./h;
 570                 float x1 = sx * obj_x1, y1 = sy * obj_y1;
 571                 float x2 = sx * obj_x2, y2 = sy * obj_y2;
 572                 float x3 = sx * obj_x3, y3 = sy * obj_y3;
 573                 float x4 = sx * obj_x4, y4 = sy * obj_y4;
 574                 affine->process(temp, replace, 0, AffineEngine::PERSPECTIVE,
 575                         x1,y1, x2,y2, x3,y3, x4,y4, 1);
 576                 overlayer->overlay(scene, temp,  0,0, w,h,  0,0, w,h,
 577                         1, TRANSFER_NORMAL, NEAREST_NEIGHBOR);
 578
 579         }
 580
 581         if( config.draw_scene_border ) {
 582                 int wh = (w+h)>>8, ss = 1; while( wh>>=1 ) ss<<=1;
 583                 scene->set_pixel_color(WHITE);  scene->set_stiple(ss*2);
 584                 draw_rect(scene, scene_x, scene_y, scene_x+scene_w, scene_y+scene_h);
 585         }
 586         if( config.draw_object_border ) {
 587                 int wh = (w+h)>>8, ss = 1; while( wh>>=1 ) ss<<=1;
 588                 scene->set_pixel_color(YELLOW);  scene->set_stiple(ss*3);
 589                 draw_rect(scene, object_x, object_y, object_x+object_w, object_y+object_h);
 590         }
 591         if( config.draw_keypoints ) {
 592                 scene->set_pixel_color(RED);  scene->set_stiple(0);
 593                 for( int i=0,n=scn_keypts.size(); i<n; ++i ) {
 594                         Point2f &pt = scn_keypts[i].pt;
 595                         int r = scn_keypts[i].size * 1.2/9 * 2;
 596                         int x = pt.x + scene_x, y = pt.y + scene_y;
 597                         draw_circle(scene, x, y, r);
 598                 }
 599         }
 600
 601         if( gui_open() ) {
 602                 if( config.drag_scene ) {
 603                         scene->set_pixel_color(WHITE);
 604                         DragCheckBox::draw_boundary(scene, scene_x, scene_y, scene_w, scene_h);
 605                 }
 606                 if( config.drag_object ) {
 607                         scene->set_pixel_color(YELLOW);
 608                         DragCheckBox::draw_boundary(scene, object_x, object_y, object_w, object_h);
 609                 }
 610         }
 611
 612         scene->set_pixel_color(BLACK);
 613         scene->set_stiple(0);
 614         return 0;
 615 }
 616