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         reset();
  43 }
  44
  45 void FindObjConfig::reset()
  46 {
  47         algorithm = NO_ALGORITHM;
  48         use_flann = 1;
  49         mode = MODE_QUADRILATERAL;
  50         draw_match = 0;
  51         aspect = 1;
  52         scale = 1;
  53         translate = 1;
  54         rotate = 1;
  55         draw_keypoints = 0;
  56         draw_scene_border = 0;
  57         replace_object = 0;
  58         draw_object_border = 0;
  59         draw_replace_border = 0;
  60         object_x = 50;  object_y = 50;
  61         object_w = 100; object_h = 100;
  62         drag_object = 0;
  63         scene_x = 50;   scene_y = 50;
  64         scene_w = 100;  scene_h = 100;
  65         drag_replace = 0;
  66         replace_x = 50;   replace_y = 50;
  67         replace_w = 100;  replace_h = 100;
  68         replace_dx = 0;   replace_dy = 0;
  69         drag_scene = 0;
  70         scene_layer = 0;
  71         object_layer = 1;
  72         replace_layer = 2;
  73         blend = 100;
  74 }
  75
  76 void FindObjConfig::boundaries()
  77 {
  78         bclamp(object_x, 0, 100);  bclamp(object_y, 0, 100);
  79         bclamp(object_w, 0, 100);  bclamp(object_h, 0, 100);
  80         bclamp(scene_x, 0, 100);   bclamp(scene_y, 0, 100);
  81         bclamp(scene_w, 0, 100);   bclamp(scene_h, 0, 100);
  82         bclamp(object_layer, MIN_LAYER, MAX_LAYER);
  83         bclamp(replace_layer, MIN_LAYER, MAX_LAYER);
  84         bclamp(scene_layer, MIN_LAYER, MAX_LAYER);
  85         bclamp(blend, MIN_BLEND, MAX_BLEND);
  86 }
  87
  88 int FindObjConfig::equivalent(FindObjConfig &that)
  89 {
  90         int result =
  91                 algorithm == that.algorithm &&
  92                 use_flann == that.use_flann &&
  93                 mode == that.mode &&
  94                 aspect == that.aspect &&
  95                 scale == that.scale &&
  96                 translate == that.translate &&
  97                 rotate == that.rotate &&
  98                 draw_keypoints == that.draw_keypoints &&
  99                 draw_match == that.draw_match &&
 100                 draw_scene_border == that.draw_scene_border &&
 101                 replace_object == that.replace_object &&
 102                 draw_object_border == that.draw_object_border &&
 103                 draw_replace_border == that.draw_replace_border &&
 104                 object_x == that.object_x && object_y == that.object_y &&
 105                 object_w == that.object_w && object_h == that.object_h &&
 106                 drag_object == that.drag_object &&
 107                 scene_x == that.scene_x && scene_y == that.scene_y &&
 108                 scene_w == that.scene_w && scene_h == that.scene_h &&
 109                 drag_scene == that.drag_scene &&
 110                 replace_x == that.replace_x && replace_y == that.replace_y &&
 111                 replace_w == that.replace_w && replace_h == that.replace_h &&
 112                 replace_dx == that.replace_dx && replace_dy == that.replace_dy &&
 113                 drag_replace == that.drag_replace &&
 114                 object_layer == that.object_layer &&
 115                 replace_layer == that.replace_layer &&
 116                 scene_layer == that.scene_layer &&
 117                 blend == that.blend;
 118         return result;
 119 }
 120
 121 void FindObjConfig::copy_from(FindObjConfig &that)
 122 {
 123         algorithm = that.algorithm;
 124         use_flann = that.use_flann;
 125         mode = that.mode;
 126         aspect = that.aspect;
 127         scale = that.scale;
 128         translate = that.translate;
 129         rotate = that.rotate;
 130         draw_keypoints = that.draw_keypoints;
 131         draw_match = that.draw_match;
 132         draw_scene_border = that.draw_scene_border;
 133         replace_object = that.replace_object;
 134         draw_object_border = that.draw_object_border;
 135         draw_replace_border = that.draw_replace_border;
 136         object_x = that.object_x;  object_y = that.object_y;
 137         object_w = that.object_w;  object_h = that.object_h;
 138         drag_object = that.drag_object;
 139         scene_x = that.scene_x;    scene_y = that.scene_y;
 140         scene_w = that.scene_w;    scene_h = that.scene_h;
 141         drag_scene = that.drag_scene;
 142         replace_x = that.replace_x;   replace_y = that.replace_y;
 143         replace_w = that.replace_w;   replace_h = that.replace_h;
 144         replace_dx = that.replace_dx; replace_dy = that.replace_dy;
 145         drag_replace = that.drag_replace;
 146         object_layer = that.object_layer;
 147         replace_layer = that.replace_layer;
 148         scene_layer = that.scene_layer;
 149         blend = that.blend;
 150 }
 151
 152 void FindObjConfig::interpolate(FindObjConfig &prev, FindObjConfig &next,
 153         int64_t prev_frame, int64_t next_frame, int64_t current_frame)
 154 {
 155         copy_from(prev);
 156 }
 157
 158
 159 FindObjMain::FindObjMain(PluginServer *server)
 160  : PluginVClient(server)
 161 {
 162         affine = 0;
 163         overlayer = 0;
 164
 165         cvmodel = BC_RGB888;
 166         w = h = 0;
 167         object = scene = replace = 0;
 168         object_x = object_y = 0;
 169         object_w = object_h = 0;
 170         scene_x = scene_y = 0;
 171         scene_w = scene_h = 0;
 172         object_layer = 0;
 173         scene_layer = 1;
 174         replace_layer = 2;
 175
 176         match_x1 = 0;  match_y1 = 0;
 177         match_x2 = 0;  match_y2 = 0;
 178         match_x3 = 0;  match_y3 = 0;
 179         match_x4 = 0;  match_y4 = 0;
 180         shape_x1 = 0;  shape_y1 = 0;
 181         shape_x2 = 0;  shape_y2 = 0;
 182         shape_x3 = 0;  shape_y3 = 0;
 183         shape_x4 = 0;  shape_y4 = 0;
 184         out_x1 = 0;    out_y1 = 0;
 185         out_x2 = 0;    out_y2 = 0;
 186         out_x3 = 0;    out_y3 = 0;
 187         out_x4 = 0;    out_y4 = 0;
 188
 189         init_border = 1;
 190 }
 191
 192 FindObjMain::~FindObjMain()
 193 {
 194         delete affine;
 195         delete overlayer;
 196 }
 197
 198 const char* FindObjMain::plugin_title() { return N_("FindObj"); }
 199 int FindObjMain::is_realtime() { return 1; }
 200 int FindObjMain::is_multichannel() { return 1; }
 201
 202 NEW_WINDOW_MACRO(FindObjMain, FindObjWindow)
 203 LOAD_CONFIGURATION_MACRO(FindObjMain, FindObjConfig)
 204
 205 void FindObjMain::update_gui()
 206 {
 207         if( !thread ) return;
 208         if( !load_configuration() ) return;
 209         FindObjWindow *window = (FindObjWindow*)thread->window;
 210         window->lock_window("FindObjMain::update_gui");
 211         window->update_gui();
 212         window->flush();
 213         window->unlock_window();
 214 }
 215
 216 void FindObjMain::save_data(KeyFrame *keyframe)
 217 {
 218         FileXML output;
 219
 220 // cause data to be stored directly in text
 221         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 222         output.tag.set_title("FINDOBJ");
 223         output.tag.set_property("ALGORITHM", config.algorithm);
 224         output.tag.set_property("USE_FLANN", config.use_flann);
 225         output.tag.set_property("MODE", config.mode);
 226         output.tag.set_property("ASPECT", config.aspect);
 227         output.tag.set_property("SCALE", config.scale);
 228         output.tag.set_property("TRANSLATE", config.translate);
 229         output.tag.set_property("ROTATE", config.rotate);
 230         output.tag.set_property("DRAG_OBJECT", config.drag_object);
 231         output.tag.set_property("OBJECT_X", config.object_x);
 232         output.tag.set_property("OBJECT_Y", config.object_y);
 233         output.tag.set_property("OBJECT_W", config.object_w);
 234         output.tag.set_property("OBJECT_H", config.object_h);
 235         output.tag.set_property("DRAG_SCENE", config.drag_scene);
 236         output.tag.set_property("SCENE_X", config.scene_x);
 237         output.tag.set_property("SCENE_Y", config.scene_y);
 238         output.tag.set_property("SCENE_W", config.scene_w);
 239         output.tag.set_property("SCENE_H", config.scene_h);
 240         output.tag.set_property("DRAG_REPLACE", config.drag_replace);
 241         output.tag.set_property("REPLACE_X", config.replace_x);
 242         output.tag.set_property("REPLACE_Y", config.replace_y);
 243         output.tag.set_property("REPLACE_W", config.replace_w);
 244         output.tag.set_property("REPLACE_H", config.replace_h);
 245         output.tag.set_property("REPLACE_DX", config.replace_dx);
 246         output.tag.set_property("REPLACE_DY", config.replace_dy);
 247         output.tag.set_property("DRAW_KEYPOINTS", config.draw_keypoints);
 248         output.tag.set_property("DRAW_MATCH", config.draw_match);
 249         output.tag.set_property("DRAW_SCENE_BORDER", config.draw_scene_border);
 250         output.tag.set_property("REPLACE_OBJECT", config.replace_object);
 251         output.tag.set_property("DRAW_OBJECT_BORDER", config.draw_object_border);
 252         output.tag.set_property("DRAW_REPLACE_BORDER", config.draw_replace_border);
 253         output.tag.set_property("OBJECT_LAYER", config.object_layer);
 254         output.tag.set_property("REPLACE_LAYER", config.replace_layer);
 255         output.tag.set_property("SCENE_LAYER", config.scene_layer);
 256         output.tag.set_property("BLEND", config.blend);
 257         output.append_tag();
 258         output.tag.set_title("/FINDOBJ");
 259         output.append_tag();
 260         output.append_newline();
 261         output.terminate_string();
 262 }
 263
 264 void FindObjMain::read_data(KeyFrame *keyframe)
 265 {
 266         FileXML input;
 267
 268         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 269
 270         int result = 0;
 271
 272         while( !(result = input.read_tag()) ) {
 273                 if( input.tag.title_is("FINDOBJ") ) {
 274                         config.algorithm = input.tag.get_property("ALGORITHM", config.algorithm);
 275                         config.use_flann = input.tag.get_property("USE_FLANN", config.use_flann);
 276                         config.mode = input.tag.get_property("MODE", config.mode);
 277                         config.aspect = input.tag.get_property("ASPECT", config.aspect);
 278                         config.scale = input.tag.get_property("SCALE", config.scale);
 279                         config.translate = input.tag.get_property("TRANSLATE", config.translate);
 280                         config.rotate = input.tag.get_property("ROTATE", config.rotate);
 281                         config.object_x = input.tag.get_property("OBJECT_X", config.object_x);
 282                         config.object_y = input.tag.get_property("OBJECT_Y", config.object_y);
 283                         config.object_w = input.tag.get_property("OBJECT_W", config.object_w);
 284                         config.object_h = input.tag.get_property("OBJECT_H", config.object_h);
 285                         config.drag_object = input.tag.get_property("DRAG_OBJECT", config.drag_object);
 286                         config.scene_x = input.tag.get_property("SCENE_X", config.scene_x);
 287                         config.scene_y = input.tag.get_property("SCENE_Y", config.scene_y);
 288                         config.scene_w = input.tag.get_property("SCENE_W", config.scene_w);
 289                         config.scene_h = input.tag.get_property("SCENE_H", config.scene_h);
 290                         config.drag_scene = input.tag.get_property("DRAG_SCENE", config.drag_scene);
 291                         config.replace_x = input.tag.get_property("REPLACE_X", config.replace_x);
 292                         config.replace_y = input.tag.get_property("REPLACE_Y", config.replace_y);
 293                         config.replace_w = input.tag.get_property("REPLACE_W", config.replace_w);
 294                         config.replace_h = input.tag.get_property("REPLACE_H", config.replace_h);
 295                         config.replace_dx = input.tag.get_property("REPLACE_DX", config.replace_dx);
 296                         config.replace_dy = input.tag.get_property("REPLACE_DY", config.replace_dy);
 297                         config.drag_replace = input.tag.get_property("DRAG_REPLACE", config.drag_replace);
 298                         config.draw_keypoints = input.tag.get_property("DRAW_KEYPOINTS", config.draw_keypoints);
 299                         config.draw_match = input.tag.get_property("DRAW_MATCH", config.draw_match);
 300                         config.draw_scene_border = input.tag.get_property("DRAW_SCENE_BORDER", config.draw_scene_border);
 301                         config.replace_object = input.tag.get_property("REPLACE_OBJECT", config.replace_object);
 302                         config.draw_object_border = input.tag.get_property("DRAW_OBJECT_BORDER", config.draw_object_border);
 303                         config.draw_replace_border = input.tag.get_property("DRAW_REPLACE_BORDER", config.draw_replace_border);
 304                         config.object_layer = input.tag.get_property("OBJECT_LAYER", config.object_layer);
 305                         config.replace_layer = input.tag.get_property("REPLACE_LAYER", config.replace_layer);
 306                         config.scene_layer = input.tag.get_property("SCENE_LAYER", config.scene_layer);
 307                         config.blend = input.tag.get_property("BLEND", config.blend);
 308                 }
 309         }
 310
 311         config.boundaries();
 312 }
 313
 314 void FindObjMain::draw_line(VFrame *vframe, int x1, int y1, int x2, int y2)
 315 {
 316         vframe->draw_line(x1, y1, x2, y2);
 317 }
 318
 319 void FindObjMain::draw_quad(VFrame *vframe,
 320                 int x1, int y1, int x2, int y2,
 321                 int x3, int y3, int x4, int y4)
 322 {
 323         int r = bmin(vframe->get_w(), vframe->get_h()) / 200 + 1;
 324         for( int i=r; --i>0; ) {
 325                 draw_line(vframe, x1+i, y1+i, x2, y2);
 326                 draw_line(vframe, x1-i, y1-i, x2, y2);
 327                 draw_line(vframe, x2+i, y2+i, x3, y3);
 328                 draw_line(vframe, x2-i, y2-i, x3, y3);
 329                 draw_line(vframe, x3+i, y3+i, x4, y4);
 330                 draw_line(vframe, x3-i, y3-i, x4, y4);
 331                 draw_line(vframe, x4+i, y4+i, x1, y1);
 332                 draw_line(vframe, x4-i, y4-i, x1, y1);
 333         }
 334         draw_line(vframe, x1, y1, x2, y2);
 335         draw_line(vframe, x2, y2, x3, y3);
 336         draw_line(vframe, x3, y3, x4, y4);
 337         draw_line(vframe, x4, y4, x1, y1);
 338         for( int i=r; --i>0; )
 339                 draw_circle(vframe, x1, y1, i);
 340 }
 341
 342 void FindObjMain::draw_rect(VFrame *vframe, int x1, int y1, int x2, int y2)
 343 {
 344         int r = bmin(vframe->get_w(), vframe->get_h()) / 200 + 1;
 345         for( int i=r; --i>0; ) {
 346                 --x2;  --y2;
 347                 draw_line(vframe, x1, y1, x2, y1);
 348                 draw_line(vframe, x2, y1, x2, y2);
 349                 draw_line(vframe, x2, y2, x1, y2);
 350                 draw_line(vframe, x1, y2, x1, y1);
 351                 ++x1;  ++y1;
 352         }
 353 }
 354
 355 void FindObjMain::draw_circle(VFrame *vframe, int x, int y, int r)
 356 {
 357         int x1 = x-r, x2 = x+r;
 358         int y1 = y-r, y2 = y+r;
 359         vframe->draw_smooth(x1,y, x1,y1, x,y1);
 360         vframe->draw_smooth(x,y1, x2,y1, x2,y);
 361         vframe->draw_smooth(x2,y, x2,y2, x,y2);
 362         vframe->draw_smooth(x,y2, x1,y2, x1,y);
 363 }
 364
 365 void FindObjMain::filter_matches(ptV &p1, ptV &p2, double ratio)
 366 {
 367         DMatches::iterator it;
 368         for( it=pairs.begin(); it!=pairs.end(); ++it ) {
 369                 DMatchV &m = *it;
 370                 if( m.size() == 2 && m[0].distance < m[1].distance*ratio ) {
 371                         p1.push_back(obj_keypts[m[0].queryIdx].pt);
 372                         p2.push_back(scn_keypts[m[0].trainIdx].pt);
 373                 }
 374         }
 375 }
 376
 377 void FindObjMain::to_mat(Mat &mat, int mcols, int mrows,
 378         VFrame *inp, int ix,int iy, BC_CModel mcolor_model)
 379 {
 380         int mcomp = BC_CModels::components(mcolor_model);
 381         int mbpp = BC_CModels::calculate_pixelsize(mcolor_model);
 382         int psz = mbpp / mcomp;
 383         int mdepth = psz < 2 ? CV_8U : CV_16U;
 384         if( mat.dims != 2 || mat.depth() != mdepth || mat.channels() != mcomp ||
 385             mat.cols != mcols || mat.rows != mrows ) {
 386                 mat.release();
 387         }
 388         if( mat.empty() ) {
 389                 int type = CV_MAKETYPE(mdepth, mcomp);
 390                 mat.create(mrows, mcols, type);
 391         }
 392         uint8_t *mat_rows[mrows];
 393         for( int y=0; y<mrows; ++y ) mat_rows[y] = mat.ptr(y);
 394         uint8_t **inp_rows = inp->get_rows();
 395         int ibpl = inp->get_bytes_per_line(), obpl = mcols * mbpp;
 396         int icolor_model = inp->get_color_model();
 397         BC_CModels::transfer(mat_rows, mcolor_model, 0,0, mcols,mrows, obpl,
 398                 inp_rows, icolor_model, ix,iy, mcols,mrows, ibpl, 0);
 399 //      VFrame vfrm(mat_rows[0], -1, mcols,mrows, mcolor_model, mat_rows[1]-mat_rows[0]);
 400 //      static int vfrm_no = 0; char vfn[64]; sprintf(vfn,"/tmp/dat/%06d.png", vfrm_no++);
 401 //      vfrm.write_png(vfn);
 402 }
 403
 404 void FindObjMain::detect(Mat &mat, KeyPointV &keypts,Mat &descrs)
 405 {
 406         keypts.clear();
 407         descrs.release();
 408         try {
 409                 detector->detectAndCompute(mat, noArray(), keypts, descrs);
 410         } catch(std::exception e) { printf(_("detector exception: %s\n"), e.what()); }
 411 }
 412
 413 void FindObjMain::match()
 414 {
 415         pairs.clear();
 416         try {
 417                 matcher->knnMatch(obj_descrs, scn_descrs, pairs, 2);
 418         } catch(std::exception e) { printf(_("match execption: %s\n"), e.what()); }
 419 }
 420
 421 Ptr<DescriptorMatcher> FindObjMain::flann_kdtree_matcher()
 422 { // trees=5
 423         const Ptr<flann::IndexParams>& indexParams =
 424                 makePtr<flann::KDTreeIndexParams>(5);
 425         const Ptr<flann::SearchParams>& searchParams =
 426                 makePtr<flann::SearchParams>();
 427         return makePtr<FlannBasedMatcher>(indexParams, searchParams);
 428 }
 429 Ptr<DescriptorMatcher> FindObjMain::flann_lshidx_matcher()
 430 { // table_number = 6#12, key_size = 12#20, multi_probe_level = 1#2
 431         const Ptr<flann::IndexParams>& indexParams =
 432                 makePtr<flann::LshIndexParams>(6, 12, 1);
 433         const Ptr<flann::SearchParams>& searchParams =
 434                 makePtr<flann::SearchParams>();
 435         return makePtr<FlannBasedMatcher>(indexParams, searchParams);
 436 }
 437 Ptr<DescriptorMatcher> FindObjMain::bf_matcher_norm_l2()
 438 {
 439         return BFMatcher::create(NORM_L2);
 440 }
 441 Ptr<DescriptorMatcher> FindObjMain::bf_matcher_norm_hamming()
 442 {
 443         return BFMatcher::create(NORM_HAMMING);
 444 }
 445
 446 #ifdef _SIFT
 447 void FindObjMain::set_sift()
 448 {
 449         cvmodel = BC_GREY8;
 450         detector = SIFT::create();
 451         matcher = config.use_flann ?
 452                 flann_kdtree_matcher() : bf_matcher_norm_l2();
 453 }
 454 #endif
 455 #ifdef _SURF
 456 void FindObjMain::set_surf()
 457 {
 458         cvmodel = BC_GREY8;
 459         detector = SURF::create(800);
 460         matcher = config.use_flann ?
 461                 flann_kdtree_matcher() : bf_matcher_norm_l2();
 462 }
 463 #endif
 464 #ifdef _ORB
 465 void FindObjMain::set_orb()
 466 {
 467         cvmodel = BC_GREY8;
 468         detector = ORB::create();
 469         matcher = config.use_flann ?
 470                 flann_lshidx_matcher() : bf_matcher_norm_hamming();
 471 }
 472 #endif
 473 #ifdef _AKAZE
 474 void FindObjMain::set_akaze()
 475 {
 476         cvmodel = BC_GREY8;
 477         detector = AKAZE::create();
 478         matcher = config.use_flann ?
 479                 flann_lshidx_matcher() : bf_matcher_norm_hamming();
 480 }
 481 #endif
 482 #ifdef _BRISK
 483 void FindObjMain::set_brisk()
 484 {
 485         cvmodel = BC_GREY8;
 486         detector = BRISK::create();
 487         matcher = config.use_flann ?
 488                 flann_lshidx_matcher() : bf_matcher_norm_hamming();
 489 }
 490 #endif
 491
 492
 493 void FindObjMain::process_match()
 494 {
 495         if( config.algorithm == NO_ALGORITHM ) return;
 496
 497         if( detector.empty() ) {
 498                 switch( config.algorithm ) {
 499 #ifdef _SIFT
 500                 case ALGORITHM_SIFT:   set_sift();   break;
 501 #endif
 502 #ifdef _SURF
 503                 case ALGORITHM_SURF:   set_surf();   break;
 504 #endif
 505 #ifdef _ORB
 506                 case ALGORITHM_ORB:    set_orb();    break;
 507 #endif
 508 #ifdef _AKAZE
 509                 case ALGORITHM_AKAZE:  set_akaze();  break;
 510 #endif
 511 #ifdef _BRISK
 512                 case ALGORITHM_BRISK:  set_brisk();  break;
 513 #endif
 514                 }
 515                 obj_keypts.clear();  obj_descrs.release();
 516                 to_mat(object_mat, object_w,object_h, object, object_x,object_y, cvmodel);
 517                 detect(object_mat, obj_keypts, obj_descrs);
 518 //printf("detect obj %d features\n", (int)obj_keypts.size());
 519         }
 520
 521         to_mat(scene_mat, scene_w,scene_h, scene, scene_x,scene_y, cvmodel);
 522         detect(scene_mat, scn_keypts, scn_descrs);
 523 //printf("detect scn %d features\n", (int)scn_keypts.size());
 524         match();
 525         ptV p1, p2;
 526         filter_matches(p1, p2);
 527         if( p1.size() < 4 ) return;
 528         Mat H = findHomography(p1, p2, RANSAC, 5.0);
 529         if( !H.dims || !H.rows || !H.cols ) {
 530 //printf("fail, size p1=%d,p2=%d\n",(int)p1.size(),(int)p2.size());
 531                 return;
 532         }
 533
 534         ptV src, dst;
 535         float out_x1 = 0, out_x2 = object_w;
 536         float out_y1 = 0, out_y2 = object_h;
 537         src.push_back(Point2f(out_x1,out_y1));
 538         src.push_back(Point2f(out_x2,out_y1));
 539         src.push_back(Point2f(out_x2,out_y2));
 540         src.push_back(Point2f(out_x1,out_y2));
 541         perspectiveTransform(src, dst, H);
 542
 543         match_x1 = dst[0].x + scene_x;  match_y1 = dst[0].y + scene_y;
 544         match_x2 = dst[1].x + scene_x;  match_y2 = dst[1].y + scene_y;
 545         match_x3 = dst[2].x + scene_x;  match_y3 = dst[2].y + scene_y;
 546         match_x4 = dst[3].x + scene_x;  match_y4 = dst[3].y + scene_y;
 547 }
 548
 549
 550 static double area(float x1, float y1, float x2, float y2,
 551                 float x3, float y3, float x4, float y4)
 552 { // quadrelateral area, sign is +ccw,-cw, use abs
 553         double dx1 = x3-x1, dy1 = y3-y1;
 554         double dx2 = x4-x2, dy2 = y4-y2;
 555         return 0.5 * (dx1 * dy2 - dx2 * dy1);
 556 }
 557 static double dist(float x1,float y1, float x2, float y2)
 558 {
 559         double dx = x2-x1, dy = y2-y1;
 560         return sqrt(dx*dx + dy*dy);
 561 }
 562 static int intersects(double x1, double y1, double x2, double y2,
 563                 double x3, double y3, double x4, double y4)
 564 {
 565         double dx12 = x2 - x1, dy12 = y2 - y1;
 566         double dx34 = x4 - x3, dy34 = y4 - y3;
 567         double d = dx12*dy34 - dx34*dy12;
 568         if( !d ) return 0; // parallel
 569         double dx13 = x3 - x1, dy13 = y3 - y1;
 570         double u = (dx13*dy34 - dx34*dy13) / d;
 571         if( u < 0 || u > 1 ) return 0;
 572         double v = (dx13*dy12 - dx12*dy13) / d;
 573         if( v < 0 || v > 1 ) return 0;
 574         return 1;
 575 }
 576
 577 /*
 578  * 4---------3    1---------2
 579  * |0,h   w,h|    |0,0   w,0|
 580  * |    +    |    |    +    |
 581  * |0,0   w,0|    |0,h   w,h|
 582  * 1---------2    1---------2
 583  * pt locations    screen pts
 584  */
 585 void FindObjMain::reshape()
 586 {
 587         if( config.mode == MODE_NONE ) return;
 588         const double pi = M_PI;
 589         double x1 = match_x1, y1 = match_y1;
 590         double x2 = match_x2, y2 = match_y2;
 591         double x3 = match_x3, y3 = match_y3;
 592         double x4 = match_x4, y4 = match_y4;
 593         double ia = area(x1,y1, x2,y2, x3,y3, x4,y4);
 594 // centroid
 595         double cx = (x1 + x2 + x3 + x4) / 4;
 596         double cy = (y1 + y2 + y3 + y4) / 4;
 597 // centered
 598         x1 -= cx;  x2 -= cx;  x3 -= cx;  x4 -= cx;
 599         y1 -= cy;  y2 -= cy;  y3 -= cy;  y4 -= cy;
 600 // bowtied
 601         if( intersects(x1,y1, x2,y2, x3,y3, x4,y4) ) {
 602                 double x = x2, y = y2;
 603                 x2 = x3;  y2 = y3;
 604                 x3 = x;   y3 = y;
 605         }
 606         else if( intersects(x1,y1, x4,y4, x3,y3, x2,y2) ) {
 607                 double x = x4, y = y4;
 608                 x4 = x3;  y4 = y3;
 609                 x3 = x;   y3 = y;
 610         }
 611
 612 // rotation, if mode is quad: reverse rotate
 613         double r = 0;
 614         if( (config.mode == MODE_QUADRILATERAL) ^ (config.rotate != 0) ) {
 615 // edge centers
 616                 double cx12 = (x1 + x2) / 2, cy12 = (y1 + y2) / 2;
 617                 double cx23 = (x2 + x3) / 2, cy23 = (y2 + y3) / 2;
 618                 double cx34 = (x3 + x4) / 2, cy34 = (y3 + y4) / 2;
 619                 double cx41 = (x4 + x1) / 2, cy41 = (y4 + y1) / 2;
 620                 double vx = cx34 - cx12, vy = cy34 - cy12;
 621                 double hx = cx23 - cx41, hy = cy23 - cy41;
 622                 double v = atan2(vy, vx);
 623                 double h = atan2(hy, hx);
 624                 r = (h + v - pi/2) / 2;
 625         }
 626 // diagonal length
 627         double a = dist(x1,y1, x3,y3) / 2;
 628         double b = dist(x2,y2, x4,y4) / 2;
 629         if( config.mode == MODE_SQUARE ||
 630             config.mode == MODE_RECTANGLE )
 631                 a = b = (a + b) / 2;
 632 // central angles
 633         double a1 = atan2(y1, x1);
 634         double a2 = atan2(y2, x2);
 635         double a3 = atan2(y3, x3);
 636         double a4 = atan2(y4, x4);
 637 // edge angles
 638         double a12 = a2 - a1, a23 = a3 - a2;
 639         double a34 = a4 - a3, a41 = a1 - a4;
 640         double dt = (a12 - a23 + a34 - a41)/4;
 641 // mirrored
 642         if( ia < 0 ) { ia = -ia;  dt = -dt;  r = -r; }
 643         switch( config.mode ) {
 644         case MODE_SQUARE:
 645         case MODE_RHOMBUS:
 646                 dt = pi/2;
 647         case MODE_RECTANGLE:
 648         case MODE_PARALLELOGRAM: {
 649                 double t = -(pi+dt)/2;
 650                 x1 = a*cos(t);  y1 = a*sin(t);  t += dt;
 651                 x2 = b*cos(t);  y2 = b*sin(t);  t += pi - dt;
 652                 x3 = a*cos(t);  y3 = a*sin(t);  t += dt;
 653                 x4 = b*cos(t);  y4 = b*sin(t); }
 654         case MODE_QUADRILATERAL:
 655                 break;
 656         }
 657 // aspect
 658         if( !config.aspect ) {
 659                 double cx12 = (x1 + x2) / 2, cy12 = (y1 + y2) / 2;
 660                 double cx23 = (x2 + x3) / 2, cy23 = (y2 + y3) / 2;
 661                 double cx34 = (x3 + x4) / 2, cy34 = (y3 + y4) / 2;
 662                 double cx41 = (x4 + x1) / 2, cy41 = (y4 + y1) / 2;
 663                 double iw = dist(cx41,cy41, cx23,cy23);
 664                 double ih = dist(cx12,cy12, cx34,cy34);
 665                 double ow = object_w, oh = object_h;
 666                 double sx = iw && ih ? sqrt((ih*ow)/(iw*oh)) : 1;
 667                 double sy = sx ? 1 / sx : 1;
 668                 x1 *= sx;  x2 *= sx;  x3 *= sx;  x4 *= sx;
 669                 y1 *= sy;  y2 *= sy;  y3 *= sy;  y4 *= sy;
 670         }
 671 // rotation
 672         if( r ) {
 673                 double ct = cos(r), st = sin(r), x, y;
 674                 x = x1*ct + y1*st;  y = y1*ct - x1*st;  x1 = x;  y1 = y;
 675                 x = x2*ct + y2*st;  y = y2*ct - x2*st;  x2 = x;  y2 = y;
 676                 x = x3*ct + y3*st;  y = y3*ct - x3*st;  x3 = x;  y3 = y;
 677                 x = x4*ct + y4*st;  y = y4*ct - x4*st;  x4 = x;  y4 = y;
 678         }
 679 // scaling
 680         ia = !config.scale ? object_w * object_h : ia;
 681         double oa = abs(area(x1,y1, x2,y2, x3,y3, x4,y4));
 682         double sf =  oa ? sqrt(ia / oa) : 0;
 683         x1 *= sf;  x2 *= sf;  x3 *= sf;  x4 *= sf;
 684         y1 *= sf;  y2 *= sf;  y3 *= sf;  y4 *= sf;
 685 // translation
 686         double ox = !config.translate ? object_x + object_w/2. : cx;
 687         double oy = !config.translate ? object_y + object_h/2. : cy;
 688         x1 += ox;  x2 += ox;  x3 += ox;  x4 += ox;
 689         y1 += oy;  y2 += oy;  y3 += oy;  y4 += oy;
 690
 691         shape_x1 = x1;  shape_y1 = y1;
 692         shape_x2 = x2;  shape_y2 = y2;
 693         shape_x3 = x3;  shape_y3 = y3;
 694         shape_x4 = x4;  shape_y4 = y4;
 695 }
 696
 697 int FindObjMain::process_buffer(VFrame **frame, int64_t start_position, double frame_rate)
 698 {
 699         int prev_algorithm = config.algorithm;
 700         int prev_use_flann = config.use_flann;
 701
 702         if( load_configuration() )
 703                 init_border = 1;
 704
 705         if( prev_algorithm != config.algorithm ||
 706             prev_use_flann != config.use_flann ) {
 707                 detector.release();
 708                 matcher.release();
 709         }
 710
 711         object_layer = config.object_layer;
 712         scene_layer = config.scene_layer;
 713         replace_layer = config.replace_layer;
 714         Track *track = server->plugin->track;
 715         w = track->track_w;
 716         h = track->track_h;
 717
 718         int max_layer = PluginClient::get_total_buffers() - 1;
 719         object_layer = bclip(config.object_layer, 0, max_layer);
 720         scene_layer = bclip(config.scene_layer, 0, max_layer);
 721         replace_layer = bclip(config.replace_layer, 0, max_layer);
 722
 723         int cfg_w = (int)(w * config.object_w / 100.);
 724         int cfg_h = (int)(h * config.object_h / 100.);
 725         int cfg_x1 = (int)(w * config.object_x / 100. - cfg_w / 2);
 726         int cfg_y1 = (int)(h * config.object_y / 100. - cfg_h / 2);
 727         int cfg_x2 = cfg_x1 + cfg_w;
 728         int cfg_y2 = cfg_y1 + cfg_h;
 729         bclamp(cfg_x1, 0, w);  object_x = cfg_x1;
 730         bclamp(cfg_y1, 0, h);  object_y = cfg_y1;
 731         bclamp(cfg_x2, 0, w);  object_w = cfg_x2 - cfg_x1;
 732         bclamp(cfg_y2, 0, h);  object_h = cfg_y2 - cfg_y1;
 733
 734         cfg_w = (int)(w * config.scene_w / 100.);
 735         cfg_h = (int)(h * config.scene_h / 100.);
 736         cfg_x1 = (int)(w * config.scene_x / 100. - cfg_w / 2);
 737         cfg_y1 = (int)(h * config.scene_y / 100. - cfg_h / 2);
 738         cfg_x2 = cfg_x1 + cfg_w;
 739         cfg_y2 = cfg_y1 + cfg_h;
 740         bclamp(cfg_x1, 0, w);  scene_x = cfg_x1;
 741         bclamp(cfg_y1, 0, h);  scene_y = cfg_y1;
 742         bclamp(cfg_x2, 0, w);  scene_w = cfg_x2 - cfg_x1;
 743         bclamp(cfg_y2, 0, h);  scene_h = cfg_y2 - cfg_y1;
 744
 745         cfg_w = (int)(w * config.replace_w / 100.);
 746         cfg_h = (int)(h * config.replace_h / 100.);
 747         cfg_x1 = (int)(w * config.replace_x / 100. - cfg_w / 2);
 748         cfg_y1 = (int)(h * config.replace_y / 100. - cfg_h / 2);
 749         cfg_x2 = cfg_x1 + cfg_w;
 750         cfg_y2 = cfg_y1 + cfg_h;
 751         bclamp(cfg_x1, 0, w);  replace_x = cfg_x1;
 752         bclamp(cfg_y1, 0, h);  replace_y = cfg_y1;
 753         bclamp(cfg_x2, 0, w);  replace_w = cfg_x2 - cfg_x1;
 754         bclamp(cfg_y2, 0, h);  replace_h = cfg_y2 - cfg_y1;
 755
 756         int cfg_dx = (int)(w * config.replace_dx / 100.);
 757         int cfg_dy = (int)(h * config.replace_dy / 100.);
 758         bclamp(cfg_dx, -h, h);  replace_dx = cfg_dx;
 759         bclamp(cfg_dy, -w, w);  replace_dy = cfg_dy;
 760
 761 // Read in the input frames
 762         for( int i = 0; i < PluginClient::get_total_buffers(); i++ ) {
 763                 read_frame(frame[i], i, start_position, frame_rate, 0);
 764         }
 765
 766         object = frame[object_layer];
 767         scene = frame[scene_layer];
 768         replace = frame[replace_layer];
 769
 770         shape_x1 = out_x1;  shape_y1 = out_y1;
 771         shape_x2 = out_x2;  shape_y2 = out_y2;
 772         shape_x3 = out_x3;  shape_y3 = out_y3;
 773         shape_x4 = out_x4;  shape_y4 = out_y4;
 774
 775         if( scene_w > 0 && scene_h > 0 && object_w > 0 && object_h > 0 ) {
 776                 process_match();
 777                 reshape();
 778         }
 779
 780         double w0 = init_border ? 1. : config.blend/100., w1 = 1. - w0;
 781         init_border = 0;
 782         out_x1 = shape_x1*w0 + out_x1*w1;  out_y1 = shape_y1*w0 + out_y1*w1;
 783         out_x2 = shape_x2*w0 + out_x2*w1;  out_y2 = shape_y2*w0 + out_y2*w1;
 784         out_x3 = shape_x3*w0 + out_x3*w1;  out_y3 = shape_y3*w0 + out_y3*w1;
 785         out_x4 = shape_x4*w0 + out_x4*w1;  out_y4 = shape_y4*w0 + out_y4*w1;
 786 // Replace object in the scene layer
 787         if( config.replace_object ) {
 788                 int cpus1 = get_project_smp() + 1;
 789                 if( !affine )
 790                         affine = new AffineEngine(cpus1, cpus1);
 791                 if( !overlayer )
 792                         overlayer = new OverlayFrame(cpus1);
 793                 VFrame *temp = new_temp(w, h, scene->get_color_model());
 794                 temp->clear_frame();
 795                 affine->set_in_viewport(replace_x, replace_y, replace_w, replace_h);
 796                 float ix1 = replace_x, ix2 = ix1 + replace_w;
 797                 float iy1 = replace_y, iy2 = iy1 + replace_h;
 798                 float dx = replace_dx, dy = replace_dy;
 799                 float ox1 = out_x1+dx, ox2 = out_x2+dx, ox3 = out_x3+dx, ox4 = out_x4+dx;
 800                 float oy1 = out_y1-dy, oy2 = out_y2-dy, oy3 = out_y3-dy, oy4 = out_y4-dy;
 801                 affine->set_matrix(ix1,iy1, ix2,iy2, ox1,oy1, ox2,oy2, ox4,oy4, ox3,oy3);
 802                 affine->process(temp, replace, 0,
 803                         AffineEngine::TRANSFORM, 0,0, 100,0, 100,100, 0,100, 1);
 804                 overlayer->overlay(scene, temp,  0,0, w,h,  0,0, w,h,
 805                         1, TRANSFER_NORMAL, NEAREST_NEIGHBOR);
 806
 807         }
 808
 809         int wh = (w+h)>>8, ss = 1; while( wh>>=1 ) ss<<=1;
 810         if( config.draw_scene_border ) {
 811                 scene->set_stiple(ss*2);
 812                 scene->set_pixel_color(WHITE);
 813                 draw_rect(scene, scene_x, scene_y, scene_x+scene_w, scene_y+scene_h);
 814         }
 815         if( config.draw_object_border ) {
 816                 scene->set_stiple(ss*3);
 817                 scene->set_pixel_color(YELLOW);
 818                 draw_rect(scene, object_x, object_y, object_x+object_w, object_y+object_h);
 819         }
 820         if( config.draw_replace_border ) {
 821                 scene->set_stiple(ss*3);
 822                 scene->set_pixel_color(GREEN);
 823                 draw_rect(scene, replace_x, replace_y, replace_x+replace_w, replace_y+replace_h);
 824         }
 825         scene->set_stiple(0);
 826         if( config.draw_keypoints ) {
 827                 scene->set_pixel_color(GREEN);
 828                 for( int i=0,n=obj_keypts.size(); i<n; ++i ) {
 829                         Point2f &pt = obj_keypts[i].pt;
 830                         int r = obj_keypts[i].size * 1.2/9 * 2;
 831                         int x = pt.x + object_x, y = pt.y + object_y;
 832                         draw_circle(scene, x, y, r);
 833                 }
 834                 scene->set_pixel_color(RED);
 835                 for( int i=0,n=scn_keypts.size(); i<n; ++i ) {
 836                         Point2f &pt = scn_keypts[i].pt;
 837                         int r = scn_keypts[i].size * 1.2/9 * 2;
 838                         int x = pt.x + scene_x, y = pt.y + scene_y;
 839                         draw_circle(scene, x, y, r);
 840                 }
 841         }
 842         if( config.draw_match ) {
 843                 scene->set_pixel_color(BLUE);
 844                 draw_quad(scene, match_x1, match_y1, match_x2, match_y2,
 845                                 match_x3, match_y3, match_x4, match_y4);
 846         }
 847
 848         if( gui_open() ) {
 849                 if( config.drag_scene ) {
 850                         scene->set_pixel_color(WHITE);
 851                         DragCheckBox::draw_boundary(scene, scene_x, scene_y, scene_w, scene_h);
 852                 }
 853                 if( config.drag_object ) {
 854                         scene->set_pixel_color(YELLOW);
 855                         DragCheckBox::draw_boundary(scene, object_x, object_y, object_w, object_h);
 856                 }
 857                 if( config.drag_replace ) {
 858                         scene->set_pixel_color(GREEN);
 859                         DragCheckBox::draw_boundary(scene, replace_x, replace_y, replace_w, replace_h);
 860                 }
 861         }
 862
 863         scene->set_pixel_color(BLACK);
 864         scene->set_stiple(0);
 865         return 0;
 866 }
 867