plugins/rotate/rotate.C

   1 #include "../motion/affine.h"
   2 #include "bcdisplayinfo.h"
   3 #include "clip.h"
   4 #include "bchash.h"
   5 #include "filexml.h"
   6 #include "guicast.h"
   7 #include "language.h"
   8 #include "picon_png.h"
   9 #include "pluginvclient.h"
  10 #include "rotateframe.h"
  11 #include "vframe.h"
  12
  13
  14 #include <string.h>
  15
  16
  17
  18 #define SQR(x) ((x) * (x))
  19 #define MAXANGLE 360
  20
  21
  22 class RotateEffect;
  23 class RotateWindow;
  24
  25
  26 class RotateConfig
  27 {
  28 public:
  29         RotateConfig();
  30
  31         int equivalent(RotateConfig &that);
  32         void copy_from(RotateConfig &that);
  33         void interpolate(RotateConfig &prev,
  34                 RotateConfig &next,
  35                 long prev_frame,
  36                 long next_frame,
  37                 long current_frame);
  38
  39         float angle;
  40         float pivot_x;
  41         float pivot_y;
  42         int draw_pivot;
  43 //      int bilinear;
  44 };
  45
  46 class RotateToggle : public BC_Radial
  47 {
  48 public:
  49         RotateToggle(RotateWindow *window,
  50                 RotateEffect *plugin,
  51                 int init_value,
  52                 int x,
  53                 int y,
  54                 int value,
  55                 char *string);
  56         int handle_event();
  57
  58         RotateEffect *plugin;
  59     RotateWindow *window;
  60     int value;
  61 };
  62
  63 class RotateDrawPivot : public BC_CheckBox
  64 {
  65 public:
  66         RotateDrawPivot(RotateWindow *window,
  67                 RotateEffect *plugin,
  68                 int x,
  69                 int y);
  70         int handle_event();
  71         RotateEffect *plugin;
  72     RotateWindow *window;
  73     int value;
  74 };
  75
  76 class RotateInterpolate : public BC_CheckBox
  77 {
  78 public:
  79         RotateInterpolate(RotateEffect *plugin, int x, int y);
  80         int handle_event();
  81         RotateEffect *plugin;
  82 };
  83
  84 class RotateFine : public BC_FPot
  85 {
  86 public:
  87         RotateFine(RotateWindow *window,
  88                 RotateEffect *plugin,
  89                 int x,
  90                 int y);
  91         int handle_event();
  92
  93         RotateEffect *plugin;
  94     RotateWindow *window;
  95 };
  96
  97 class RotateX : public BC_FPot
  98 {
  99 public:
 100         RotateX(RotateWindow *window,
 101                 RotateEffect *plugin,
 102                 int x,
 103                 int y);
 104         int handle_event();
 105         RotateEffect *plugin;
 106     RotateWindow *window;
 107 };
 108
 109 class RotateY : public BC_FPot
 110 {
 111 public:
 112         RotateY(RotateWindow *window,
 113                 RotateEffect *plugin,
 114                 int x,
 115                 int y);
 116         int handle_event();
 117         RotateEffect *plugin;
 118     RotateWindow *window;
 119 };
 120
 121
 122 class RotateText : public BC_TextBox
 123 {
 124 public:
 125         RotateText(RotateWindow *window,
 126                 RotateEffect *plugin,
 127                 int x,
 128                 int y);
 129         int handle_event();
 130
 131         RotateEffect *plugin;
 132     RotateWindow *window;
 133 };
 134
 135 class RotateWindow : public BC_Window
 136 {
 137 public:
 138         RotateWindow(RotateEffect *plugin, int x, int y);
 139
 140         int create_objects();
 141         int close_event();
 142         int update();
 143         int update_fine();
 144         int update_text();
 145         int update_toggles();
 146
 147         RotateEffect *plugin;
 148         RotateToggle *toggle0;
 149         RotateToggle *toggle90;
 150         RotateToggle *toggle180;
 151         RotateToggle *toggle270;
 152         RotateDrawPivot *draw_pivot;
 153         RotateFine *fine;
 154         RotateText *text;
 155         RotateX *x;
 156         RotateY *y;
 157 //      RotateInterpolate *bilinear;
 158 };
 159
 160
 161 PLUGIN_THREAD_HEADER(RotateEffect, RotateThread, RotateWindow)
 162
 163
 164 class RotateEffect : public PluginVClient
 165 {
 166 public:
 167         RotateEffect(PluginServer *server);
 168         ~RotateEffect();
 169
 170         int process_buffer(VFrame *frame,
 171                 int64_t start_position,
 172                 double frame_rate);
 173         int is_realtime();
 174         char* plugin_title();
 175         VFrame* new_picon();
 176         int show_gui();
 177         void raise_window();
 178         void update_gui();
 179         int set_string();
 180         int load_configuration();
 181         int load_defaults();
 182         int save_defaults();
 183         void save_data(KeyFrame *keyframe);
 184         void read_data(KeyFrame *keyframe);
 185         int handle_opengl();
 186
 187         RotateConfig config;
 188         AffineEngine *engine;
 189         RotateThread *thread;
 190         BC_Hash *defaults;
 191         int need_reconfigure;
 192 };
 193
 194
 195
 196
 197
 198
 199
 200 REGISTER_PLUGIN(RotateEffect)
 201
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 216
 217
 218
 219 RotateConfig::RotateConfig()
 220 {
 221         angle = 0;
 222         pivot_x = 50;
 223         pivot_y = 50;
 224         draw_pivot = 0;
 225 }
 226
 227 int RotateConfig::equivalent(RotateConfig &that)
 228 {
 229         return EQUIV(angle, that.angle) &&
 230                 EQUIV(pivot_x, that.pivot_y) &&
 231                 EQUIV(pivot_y, that.pivot_y) &&
 232                 draw_pivot == that.draw_pivot;
 233 }
 234
 235 void RotateConfig::copy_from(RotateConfig &that)
 236 {
 237         angle = that.angle;
 238         pivot_x = that.pivot_x;
 239         pivot_y = that.pivot_y;
 240         draw_pivot = that.draw_pivot;
 241 //      bilinear = that.bilinear;
 242 }
 243
 244 void RotateConfig::interpolate(RotateConfig &prev,
 245                 RotateConfig &next,
 246                 long prev_frame,
 247                 long next_frame,
 248                 long current_frame)
 249 {
 250         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
 251         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
 252
 253         this->angle = prev.angle * prev_scale + next.angle * next_scale;
 254         this->pivot_x = prev.pivot_x * prev_scale + next.pivot_x * next_scale;
 255         this->pivot_y = prev.pivot_y * prev_scale + next.pivot_y * next_scale;
 256         draw_pivot = prev.draw_pivot;
 257 //      bilinear = prev.bilinear;
 258 }
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270 RotateToggle::RotateToggle(RotateWindow *window,
 271         RotateEffect *plugin,
 272         int init_value,
 273         int x,
 274         int y,
 275         int value,
 276         char *string)
 277  : BC_Radial(x, y, init_value, string)
 278 {
 279         this->value = value;
 280         this->plugin = plugin;
 281     this->window = window;
 282 }
 283
 284 int RotateToggle::handle_event()
 285 {
 286         plugin->config.angle = (float)value;
 287     window->update();
 288         plugin->send_configure_change();
 289         return 1;
 290 }
 291
 292
 293
 294
 295
 296
 297
 298 RotateDrawPivot::RotateDrawPivot(RotateWindow *window,
 299         RotateEffect *plugin,
 300         int x,
 301         int y)
 302  : BC_CheckBox(x, y, plugin->config.draw_pivot, _("Draw pivot"))
 303 {
 304         this->plugin = plugin;
 305     this->window = window;
 306 }
 307
 308 int RotateDrawPivot::handle_event()
 309 {
 310         plugin->config.draw_pivot = get_value();
 311         plugin->send_configure_change();
 312         return 1;
 313 }
 314
 315
 316
 317
 318
 319 // RotateInterpolate::RotateInterpolate(RotateEffect *plugin, int x, int y)
 320 //  : BC_CheckBox(x, y, plugin->config.bilinear, _("Interpolate"))
 321 // {
 322 //      this->plugin = plugin;
 323 // }
 324 // int RotateInterpolate::handle_event()
 325 // {
 326 //      plugin->config.bilinear = get_value();
 327 //      plugin->send_configure_change();
 328 //      return 1;
 329 // }
 330 //
 331
 332
 333
 334 RotateFine::RotateFine(RotateWindow *window, RotateEffect *plugin, int x, int y)
 335  : BC_FPot(x,
 336         y,
 337         (float)plugin->config.angle,
 338         (float)-360,
 339         (float)360)
 340 {
 341         this->window = window;
 342         this->plugin = plugin;
 343         set_precision(0.01);
 344         set_use_caption(0);
 345 }
 346
 347 int RotateFine::handle_event()
 348 {
 349         plugin->config.angle = get_value();
 350         window->update_toggles();
 351         window->update_text();
 352         plugin->send_configure_change();
 353         return 1;
 354 }
 355
 356
 357
 358 RotateText::RotateText(RotateWindow *window,
 359         RotateEffect *plugin,
 360         int x,
 361         int y)
 362  : BC_TextBox(x,
 363         y,
 364         100,
 365         1,
 366         (float)plugin->config.angle)
 367 {
 368         this->window = window;
 369         this->plugin = plugin;
 370         set_precision(4);
 371 }
 372
 373 int RotateText::handle_event()
 374 {
 375         plugin->config.angle = atof(get_text());
 376         window->update_toggles();
 377         window->update_fine();
 378         plugin->send_configure_change();
 379         return 1;
 380 }
 381
 382
 383
 384 RotateX::RotateX(RotateWindow *window, RotateEffect *plugin, int x, int y)
 385  : BC_FPot(x,
 386         y,
 387         (float)plugin->config.pivot_x,
 388         (float)0,
 389         (float)100)
 390 {
 391         this->window = window;
 392         this->plugin = plugin;
 393         set_precision(0.01);
 394         set_use_caption(1);
 395 }
 396
 397 int RotateX::handle_event()
 398 {
 399         plugin->config.pivot_x = get_value();
 400         plugin->send_configure_change();
 401         return 1;
 402 }
 403
 404 RotateY::RotateY(RotateWindow *window, RotateEffect *plugin, int x, int y)
 405  : BC_FPot(x,
 406         y,
 407         (float)plugin->config.pivot_y,
 408         (float)0,
 409         (float)100)
 410 {
 411         this->window = window;
 412         this->plugin = plugin;
 413         set_precision(0.01);
 414         set_use_caption(1);
 415 }
 416
 417 int RotateY::handle_event()
 418 {
 419         plugin->config.pivot_y = get_value();
 420         plugin->send_configure_change();
 421         return 1;
 422 }
 423
 424
 425
 426
 427
 428
 429
 430
 431 RotateWindow::RotateWindow(RotateEffect *plugin, int x, int y)
 432  : BC_Window(plugin->gui_string,
 433         x,
 434         y,
 435         250,
 436         230,
 437         250,
 438         230,
 439         0,
 440         0,
 441         1)
 442 {
 443         this->plugin = plugin;
 444 }
 445
 446 #define RADIUS 30
 447
 448 int RotateWindow::create_objects()
 449 {
 450         int x = 10, y = 10;
 451         BC_Title *title;
 452
 453
 454
 455         add_tool(new BC_Title(x, y, _("Rotate")));
 456         x += 50;
 457         y += 20;
 458         add_tool(toggle0 = new RotateToggle(this,
 459                 plugin,
 460                 plugin->config.angle == 0,
 461                 x,
 462                 y,
 463                 0,
 464                 "0"));
 465     x += RADIUS;
 466     y += RADIUS;
 467         add_tool(toggle90 = new RotateToggle(this,
 468                 plugin,
 469                 plugin->config.angle == 90,
 470                 x,
 471                 y,
 472                 90,
 473                 "90"));
 474     x -= RADIUS;
 475     y += RADIUS;
 476         add_tool(toggle180 = new RotateToggle(this,
 477                 plugin,
 478                 plugin->config.angle == 180,
 479                 x,
 480                 y,
 481                 180,
 482                 "180"));
 483     x -= RADIUS;
 484     y -= RADIUS;
 485         add_tool(toggle270 = new RotateToggle(this,
 486                 plugin,
 487                 plugin->config.angle == 270,
 488                 x,
 489                 y,
 490                 270,
 491                 "270"));
 492 //      add_subwindow(bilinear = new RotateInterpolate(plugin, 10, y + 60));
 493         x += 120;
 494         y -= 50;
 495         add_tool(fine = new RotateFine(this, plugin, x, y));
 496         y += fine->get_h() + 10;
 497         add_tool(text = new RotateText(this, plugin, x, y));
 498         y += 30;
 499         add_tool(new BC_Title(x, y, _("Degrees")));
 500
 501
 502
 503
 504
 505         y += text->get_h() + 10;
 506         add_subwindow(title = new BC_Title(x, y, _("Pivot (x,y):")));
 507         y += title->get_h() + 10;
 508         add_subwindow(this->x = new RotateX(this, plugin, x, y));
 509         x += this->x->get_w() + 10;
 510         add_subwindow(this->y = new RotateY(this, plugin, x, y));
 511
 512         x = 10;
 513         y += this->y->get_h() + 10;
 514         add_subwindow(draw_pivot = new RotateDrawPivot(this, plugin, x, y));
 515
 516         show_window();
 517         flush();
 518
 519
 520
 521         return 0;
 522 }
 523
 524 WINDOW_CLOSE_EVENT(RotateWindow)
 525
 526 int RotateWindow::update()
 527 {
 528         update_fine();
 529         update_toggles();
 530         update_text();
 531 //      bilinear->update(plugin->config.bilinear);
 532         return 0;
 533 }
 534
 535 int RotateWindow::update_fine()
 536 {
 537         fine->update(plugin->config.angle);
 538         x->update(plugin->config.pivot_x);
 539         y->update(plugin->config.pivot_y);
 540         return 0;
 541 }
 542
 543 int RotateWindow::update_text()
 544 {
 545         text->update(plugin->config.angle);
 546         return 0;
 547 }
 548
 549 int RotateWindow::update_toggles()
 550 {
 551         toggle0->update(EQUIV(plugin->config.angle, 0));
 552         toggle90->update(EQUIV(plugin->config.angle, 90));
 553         toggle180->update(EQUIV(plugin->config.angle, 180));
 554         toggle270->update(EQUIV(plugin->config.angle, 270));
 555         draw_pivot->update(plugin->config.draw_pivot);
 556         return 0;
 557 }
 558
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 568
 569
 570
 571
 572
 573 PLUGIN_THREAD_OBJECT(RotateEffect, RotateThread, RotateWindow)
 574
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 577
 578
 579
 580
 581
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 586
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 588
 589
 590
 591
 592 RotateEffect::RotateEffect(PluginServer *server)
 593  : PluginVClient(server)
 594 {
 595         engine = 0;
 596         need_reconfigure = 1;
 597         PLUGIN_CONSTRUCTOR_MACRO
 598 }
 599
 600 RotateEffect::~RotateEffect()
 601 {
 602         PLUGIN_DESTRUCTOR_MACRO
 603         if(engine) delete engine;
 604 }
 605
 606
 607
 608 char* RotateEffect::plugin_title() { return N_("Rotate"); }
 609 int RotateEffect::is_realtime() { return 1; }
 610
 611 NEW_PICON_MACRO(RotateEffect)
 612
 613 SET_STRING_MACRO(RotateEffect)
 614
 615 SHOW_GUI_MACRO(RotateEffect, RotateThread)
 616
 617 RAISE_WINDOW_MACRO(RotateEffect)
 618
 619
 620 void RotateEffect::update_gui()
 621 {
 622         if(thread)
 623         {
 624                 load_configuration();
 625                 thread->window->lock_window();
 626                 thread->window->update();
 627                 thread->window->unlock_window();
 628         }
 629 }
 630
 631 LOAD_CONFIGURATION_MACRO(RotateEffect, RotateConfig)
 632
 633
 634
 635 int RotateEffect::load_defaults()
 636 {
 637         char directory[1024], string[1024];
 638 // set the default directory
 639         sprintf(directory, "%srotate.rc", BCASTDIR);
 640
 641 // load the defaults
 642         defaults = new BC_Hash(directory);
 643         defaults->load();
 644
 645         config.angle = defaults->get("ANGLE", (float)config.angle);
 646         config.pivot_x = defaults->get("PIVOT_X", (float)config.pivot_x);
 647         config.pivot_y = defaults->get("PIVOT_Y", (float)config.pivot_y);
 648         config.draw_pivot = defaults->get("DRAW_PIVOT", (int)config.draw_pivot);
 649 //      config.bilinear = defaults->get("INTERPOLATE", (int)config.bilinear);
 650         return 0;
 651 }
 652
 653 int RotateEffect::save_defaults()
 654 {
 655         defaults->update("ANGLE", (float)config.angle);
 656         defaults->update("PIVOT_X", (float)config.pivot_x);
 657         defaults->update("PIVOT_Y", (float)config.pivot_y);
 658         defaults->update("DRAW_PIVOT", (int)config.draw_pivot);
 659 //      defaults->update("INTERPOLATE", (int)config.bilinear);
 660         defaults->save();
 661         return 0;
 662 }
 663
 664 void RotateEffect::save_data(KeyFrame *keyframe)
 665 {
 666         FileXML output;
 667
 668 // cause data to be stored directly in text
 669         output.set_shared_string(keyframe->data, MESSAGESIZE);
 670         output.tag.set_title("ROTATE");
 671         output.tag.set_property("ANGLE", (float)config.angle);
 672         output.tag.set_property("PIVOT_X", (float)config.pivot_x);
 673         output.tag.set_property("PIVOT_Y", (float)config.pivot_y);
 674         output.tag.set_property("DRAW_PIVOT", (int)config.draw_pivot);
 675 //      output.tag.set_property("INTERPOLATE", (int)config.bilinear);
 676         output.append_tag();
 677         output.terminate_string();
 678 // data is now in *text
 679 }
 680
 681 void RotateEffect::read_data(KeyFrame *keyframe)
 682 {
 683         FileXML input;
 684
 685         input.set_shared_string(keyframe->data, strlen(keyframe->data));
 686
 687         int result = 0;
 688
 689         while(!result)
 690         {
 691                 result = input.read_tag();
 692
 693                 if(!result)
 694                 {
 695                         if(input.tag.title_is("ROTATE"))
 696                         {
 697                                 config.angle = input.tag.get_property("ANGLE", (float)config.angle);
 698                                 config.pivot_x = input.tag.get_property("PIVOT_X", (float)config.pivot_x);
 699                                 config.pivot_y = input.tag.get_property("PIVOT_Y", (float)config.pivot_y);
 700                                 config.draw_pivot = input.tag.get_property("DRAW_PIVOT", (int)config.draw_pivot);
 701 //                              config.bilinear = input.tag.get_property("INTERPOLATE", (int)config.bilinear);
 702                         }
 703                 }
 704         }
 705 }
 706
 707 int RotateEffect::process_buffer(VFrame *frame,
 708         int64_t start_position,
 709         double frame_rate)
 710 {
 711         load_configuration();
 712         int w = frame->get_w();
 713         int h = frame->get_h();
 714 //printf("RotateEffect::process_realtime 1 %d %f\n", config.bilinear, config.angle);
 715
 716
 717         if(config.angle == 0)
 718         {
 719                 read_frame(frame,
 720                         0,
 721                         start_position,
 722                         frame_rate,
 723                         get_use_opengl());
 724                 return 1;
 725         }
 726
 727         if(!engine) engine = new AffineEngine(PluginClient::smp + 1,
 728                 PluginClient::smp + 1);
 729         engine->set_pivot((int)(config.pivot_x * get_input()->get_w() / 100),
 730                 (int)(config.pivot_y * get_input()->get_h() / 100));
 731
 732         if(get_use_opengl())
 733         {
 734                 read_frame(frame,
 735                         0,
 736                         start_position,
 737                         frame_rate,
 738                         get_use_opengl());
 739                 return run_opengl();
 740         }
 741
 742
 743 // engine->set_viewport(50,
 744 // 50,
 745 // 100,
 746 // 100);
 747 // engine->set_pivot(100, 100);
 748
 749
 750         VFrame *temp_frame = PluginVClient::new_temp(get_input()->get_w(),
 751                 get_input()->get_h(),
 752                 get_input()->get_color_model());
 753         read_frame(temp_frame,
 754                 0,
 755                 start_position,
 756                 frame_rate,
 757                 get_use_opengl());
 758         frame->clear_frame();
 759         engine->rotate(frame,
 760                 temp_frame,
 761                 config.angle);
 762
 763
 764 // Draw center
 765 #define CENTER_H 20
 766 #define CENTER_W 20
 767 #define DRAW_CENTER(components, type, max) \
 768 { \
 769         type **rows = (type**)get_output()->get_rows(); \
 770         if(center_x >= 0 && center_x < w || \
 771                 center_y >= 0 && center_y < h) \
 772         { \
 773                 type *hrow = rows[center_y] + components * (center_x - CENTER_W / 2); \
 774                 for(int i = center_x - CENTER_W / 2; i <= center_x + CENTER_W / 2; i++) \
 775                 { \
 776                         if(i >= 0 && i < w) \
 777                         { \
 778                                 hrow[0] = max - hrow[0]; \
 779                                 hrow[1] = max - hrow[1]; \
 780                                 hrow[2] = max - hrow[2]; \
 781                                 hrow += components; \
 782                         } \
 783                 } \
 784  \
 785                 for(int i = center_y - CENTER_W / 2; i <= center_y + CENTER_W / 2; i++) \
 786                 { \
 787                         if(i >= 0 && i < h) \
 788                         { \
 789                                 type *vrow = rows[i] + center_x * components; \
 790                                 vrow[0] = max - vrow[0]; \
 791                                 vrow[1] = max - vrow[1]; \
 792                                 vrow[2] = max - vrow[2]; \
 793                         } \
 794                 } \
 795         } \
 796 }
 797
 798         if(config.draw_pivot)
 799         {
 800                 int center_x = (int)(config.pivot_x * w / 100); \
 801                 int center_y = (int)(config.pivot_y * h / 100); \
 802                 switch(get_output()->get_color_model())
 803                 {
 804                         case BC_RGB_FLOAT:
 805                                 DRAW_CENTER(3, float, 1.0)
 806                                 break;
 807                         case BC_RGBA_FLOAT:
 808                                 DRAW_CENTER(4, float, 1.0)
 809                                 break;
 810                         case BC_RGB888:
 811                                 DRAW_CENTER(3, unsigned char, 0xff)
 812                                 break;
 813                         case BC_RGBA8888:
 814                                 DRAW_CENTER(4, unsigned char, 0xff)
 815                                 break;
 816                         case BC_YUV888:
 817                                 DRAW_CENTER(3, unsigned char, 0xff)
 818                                 break;
 819                         case BC_YUVA8888:
 820                                 DRAW_CENTER(4, unsigned char, 0xff)
 821                                 break;
 822                 }
 823         }
 824
 825 // Conserve memory by deleting large frames
 826         if(get_input()->get_w() > PLUGIN_MAX_W &&
 827                 get_input()->get_h() > PLUGIN_MAX_H)
 828         {
 829                 delete engine;
 830                 engine = 0;
 831         }
 832         return 0;
 833 }
 834
 835
 836
 837 int RotateEffect::handle_opengl()
 838 {
 839 #ifdef HAVE_GL
 840         engine->set_opengl(1);
 841         engine->rotate(get_output(),
 842                 get_output(),
 843                 config.angle);
 844         engine->set_opengl(0);
 845
 846         if(config.draw_pivot)
 847         {
 848                 int w = get_output()->get_w();
 849                 int h = get_output()->get_h();
 850                 int center_x = (int)(config.pivot_x * w / 100); \
 851                 int center_y = (int)(config.pivot_y * h / 100); \
 852
 853                 glDisable(GL_TEXTURE_2D);
 854                 glColor4f(1.0, 1.0, 1.0, 1.0);
 855                 glLogicOp(GL_XOR);
 856                 glEnable(GL_COLOR_LOGIC_OP);
 857                 glBegin(GL_LINES);
 858                 glVertex3f(center_x, -h + center_y - CENTER_H / 2, 0.0);
 859                 glVertex3f(center_x, -h + center_y + CENTER_H / 2, 0.0);
 860                 glEnd();
 861                 glBegin(GL_LINES);
 862                 glVertex3f(center_x - CENTER_W / 2, -h + center_y, 0.0);
 863                 glVertex3f(center_x + CENTER_W / 2, -h + center_y, 0.0);
 864                 glEnd();
 865                 glDisable(GL_COLOR_LOGIC_OP);
 866         }
 867 #endif
 868 }
 869
 870