cinelerra-5.1/cinelerra/formattools.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2010-2013 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 "bcsignals.h"
  24 #include "clip.h"
  25 #include "guicast.h"
  26 #include "file.h"
  27 #include "filesystem.h"
  28 #include "formattools.h"
  29 #include "language.h"
  30 #ifdef HAVE_DV
  31 #include "libdv.h"
  32 #endif
  33 #include "libmjpeg.h"
  34 #include "maxchannels.h"
  35 #include "mwindow.h"
  36 #include "preferences.h"
  37 #include "theme.h"
  38 #include "videodevice.inc"
  39 #include <string.h>
  40 #include <unistd.h>
  41 #include <ctype.h>
  42
  43
  44 FormatTools::FormatTools(MWindow *mwindow,
  45                                 BC_WindowBase *window,
  46                                 Asset *asset)
  47 {
  48         this->mwindow = mwindow;
  49         this->window = window;
  50         this->asset = asset;
  51
  52         aparams_button = 0;
  53         vparams_button = 0;
  54         aparams_thread = 0;
  55         vparams_thread = 0;
  56         audio_switch = 0;
  57         video_switch = 0;
  58         path_textbox = 0;
  59         path_button = 0;
  60         path_recent = 0;
  61         format_title = 0;
  62         format_button = 0;
  63         format_text = 0;
  64         audio_title = 0;
  65         video_title = 0;
  66         labeled_files = 0;
  67         w = window->get_w();
  68
  69         recording = 0;
  70         use_brender = 0;
  71         do_audio = 0;
  72         do_video = 0;
  73         prompt_audio = 0;
  74         prompt_audio_channels = 0;
  75         prompt_video = 0;
  76         prompt_video_compression = 0;
  77         file_per_label = 0;
  78         locked_compressor = 0;
  79         video_driver = 0;
  80 }
  81
  82 FormatTools::~FormatTools()
  83 {
  84         delete path_recent;
  85 SET_TRACE
  86         delete path_button;
  87 SET_TRACE
  88         delete path_textbox;
  89 SET_TRACE
  90         delete format_button;
  91 SET_TRACE
  92
  93         if(aparams_button) delete aparams_button;
  94 SET_TRACE
  95         if(vparams_button) delete vparams_button;
  96 SET_TRACE
  97         if(aparams_thread) delete aparams_thread;
  98 SET_TRACE
  99         if(vparams_thread) delete vparams_thread;
 100 SET_TRACE
 101 }
 102
 103 void FormatTools::create_objects(
 104                 int &init_x, int &init_y,
 105                 int do_audio, int do_video,   // Include support for audio, video
 106                 int prompt_audio, int prompt_video, // Include checkbox for audio, video
 107                 int prompt_audio_channels,
 108                 int prompt_video_compression,
 109                 const char *locked_compressor,
 110                 int recording,
 111                 int *file_per_label,
 112                 int brender,
 113                 int horizontal_layout)
 114 {
 115         int x = init_x;
 116         int y = init_y;
 117         int ylev = init_y;
 118         int margin = mwindow->theme->widget_border;
 119
 120         this->locked_compressor = locked_compressor;
 121         this->recording = recording;
 122         this->use_brender = brender;
 123         this->do_audio = do_audio;
 124         this->do_video = do_video;
 125         this->prompt_audio = prompt_audio;
 126         this->prompt_audio_channels = prompt_audio_channels;
 127         this->prompt_video = prompt_video;
 128         this->prompt_video_compression = prompt_video_compression;
 129         this->file_per_label = file_per_label;
 130
 131 //printf("FormatTools::create_objects 1\n");
 132
 133         if(!recording)
 134         {
 135                 int px = x;
 136                 window->add_subwindow(path_textbox = new FormatPathText(px, y, this));
 137                 px += path_textbox->get_w() + 5;
 138                 path_recent = new BC_RecentList("PATH", mwindow->defaults,
 139                                         path_textbox, 10, px, y, 300, 100);
 140                 window->add_subwindow(path_recent);
 141                 path_recent->load_items(File::formattostr(asset->format));
 142                 px += path_recent->get_w();
 143                 window->add_subwindow(path_button = new BrowseButton(
 144                         mwindow->theme, window, path_textbox, px, y, asset->path,
 145                         _("Output to file"), _("Select a file to write to:"), 0));
 146
 147 // Set w for user.
 148                 w = MAX(w, 305);
 149                 y += path_textbox->get_h() + 10;
 150         }
 151         else
 152         {
 153 //              w = x + 305;
 154                 w = 305;
 155         }
 156
 157         x = init_x;
 158         window->add_subwindow(format_title = new BC_Title(x, y, _("File Format:")));
 159         x += format_title->get_w() + margin;
 160         window->add_subwindow(format_text = new BC_TextBox(x, y, 160, 1,
 161                 File::formattostr(asset->format)));
 162         x += format_text->get_w() + margin;
 163 //printf("FormatTools::create_objects %d %p\n", __LINE__, window);
 164         window->add_subwindow(format_button = new FormatFormat(x, y, this));
 165         format_button->create_objects();
 166         x += format_button->get_w() + 5;
 167         window->add_subwindow(ffmpeg_type = new FFMpegType(x, y, 70, 1, asset->fformat));
 168         FFMPEG::set_asset_format(asset, mwindow->edl, asset->fformat);
 169         x += ffmpeg_type->get_w();
 170         window->add_subwindow(format_ffmpeg = new FormatFFMPEG(x, y, this));
 171         format_ffmpeg->create_objects();
 172         x = init_x;
 173         y += format_button->get_h() + 10;
 174         if( do_audio ) {
 175                 window->add_subwindow(audio_title = new BC_Title(x, y, _("Audio:"), LARGEFONT,
 176                         BC_WindowBase::get_resources()->audiovideo_color));
 177                 x += audio_title->get_w() + margin;
 178                 window->add_subwindow(aparams_button = new FormatAParams(mwindow, this, x, y));
 179                 x += aparams_button->get_w() + margin;
 180                 if(prompt_audio) {
 181                         window->add_subwindow(audio_switch = new FormatAudio(x, y, this, asset->audio_data));
 182                 }
 183                 x = init_x;
 184                 ylev = y;
 185                 y += aparams_button->get_h() + 10;
 186
 187 //printf("FormatTools::create_objects 6\n");
 188                 aparams_thread = new FormatAThread(this);
 189         }
 190
 191 //printf("FormatTools::create_objects 7\n");
 192         if( do_video ) {
 193                 if( horizontal_layout && do_audio ) {
 194                         x += 370;
 195                         y = ylev;
 196                 }
 197
 198 //printf("FormatTools::create_objects 8\n");
 199                 window->add_subwindow(video_title = new BC_Title(x, y, _("Video:"), LARGEFONT,
 200                         BC_WindowBase::get_resources()->audiovideo_color));
 201                 x += video_title->get_w() + margin;
 202                 if(prompt_video_compression) {
 203                         window->add_subwindow(vparams_button = new FormatVParams(mwindow, this, x, y));
 204                         x += vparams_button->get_w() + margin;
 205                 }
 206
 207 //printf("FormatTools::create_objects 9\n");
 208                 if(prompt_video) {
 209                         window->add_subwindow(video_switch = new FormatVideo(x, y, this, asset->video_data));
 210                         y += video_switch->get_h();
 211                 }
 212                 else {
 213                         y += vparams_button->get_h();
 214                 }
 215
 216 //printf("FormatTools::create_objects 10\n");
 217                 y += 10;
 218                 vparams_thread = new FormatVThread(this);
 219         }
 220
 221 //printf("FormatTools::create_objects 11\n");
 222
 223         x = init_x;
 224         if( file_per_label ) {
 225                 labeled_files = new FormatFilePerLabel(this, x, y, file_per_label);
 226                 window->add_subwindow(labeled_files);
 227                 y += labeled_files->get_h() + 10;
 228         }
 229
 230 //printf("FormatTools::create_objects 12\n");
 231
 232         init_y = y;
 233         update_format();
 234 }
 235
 236 void FormatTools::update_driver(int driver)
 237 {
 238         this->video_driver = driver;
 239
 240         locked_compressor = 0;
 241         switch(driver)
 242         {
 243                 case CAPTURE_DVB:
 244                 case VIDEO4LINUX2MPEG:
 245 // Just give the user information about how the stream is going to be
 246 // stored but don't change the asset.
 247 // Want to be able to revert to user settings.
 248                         if(asset->format == FILE_MPEG) break;
 249                         asset->format = FILE_MPEG;
 250                         format_text->update(File::formattostr(asset->format));
 251                         asset->audio_data = 1;
 252                         asset->video_data = 1;
 253                         audio_switch->update(1);
 254                         video_switch->update(1);
 255                         break;
 256
 257                 case CAPTURE_IEC61883:
 258                 case CAPTURE_FIREWIRE:
 259                 case VIDEO4LINUX2JPEG:
 260                 case CAPTURE_JPEG_WEBCAM:
 261                         asset->format = FILE_FFMPEG;
 262                         format_text->update(File::formattostr(asset->format));
 263
 264                         switch(driver) {
 265 #ifdef HAVE_DV
 266                         case CAPTURE_IEC61883:
 267                         case CAPTURE_FIREWIRE:
 268                                 locked_compressor = (char*)CODEC_TAG_DVSD;
 269                                 break;
 270 #endif
 271                         case VIDEO4LINUX2JPEG:
 272                                 locked_compressor = (char*)CODEC_TAG_MJPEG;
 273                                 break;
 274
 275                         case CAPTURE_JPEG_WEBCAM:
 276                                 locked_compressor = (char*)CODEC_TAG_JPEG;
 277                                 break;
 278                         }
 279                         if( locked_compressor )
 280                                 strcpy(asset->vcodec, locked_compressor);
 281
 282                         audio_switch->update(asset->audio_data);
 283                         video_switch->update(asset->video_data);
 284                         break;
 285
 286                 default:
 287                         format_text->update(File::formattostr(asset->format));
 288                         audio_switch->update(asset->audio_data);
 289                         video_switch->update(asset->video_data);
 290                         break;
 291         }
 292         close_format_windows();
 293         update_format();
 294 }
 295
 296 void FormatTools::update_format()
 297 {
 298         if( do_audio && prompt_audio && audio_switch ) {
 299                 audio_switch->update(asset->audio_data);
 300                 if( File::renders_audio(asset) )
 301                         audio_switch->enable();
 302                 else
 303                         audio_switch->disable();
 304         }
 305         if( do_video && prompt_video && video_switch ) {
 306                 video_switch->update(asset->video_data);
 307                 if( File::renders_video(asset) )
 308                         video_switch->enable();
 309                 else
 310                         video_switch->disable();
 311         }
 312         if( asset->format == FILE_FFMPEG ) {
 313                 ffmpeg_type->show();
 314                 format_ffmpeg->show();
 315         }
 316         else {
 317                 ffmpeg_type->hide();
 318                 format_ffmpeg->hide();
 319         }
 320 }
 321
 322 int FormatTools::handle_event()
 323 {
 324         return 0;
 325 }
 326
 327 Asset* FormatTools::get_asset()
 328 {
 329         return asset;
 330 }
 331
 332 void FormatTools::update_extension()
 333 {
 334         const char *extension = File::get_tag(asset->format);
 335 // split multiple extensions
 336         ArrayList<const char*> extensions;
 337         int len = !extension ? -1 : strlen(extension);
 338         const char *extension_ptr = extension;
 339         for(int i = 0; i <= len; i++)
 340         {
 341                 if(extension[i] == '/' || extension[i] == 0)
 342                 {
 343                         extensions.append(extension_ptr);
 344                         extension_ptr = extension + i + 1;
 345                 }
 346         }
 347
 348         if(extensions.size())
 349         {
 350                 char *ptr = strrchr(asset->path, '.');
 351                 if(!ptr)
 352                 {
 353                         ptr = asset->path + strlen(asset->path);
 354                         *ptr = '.';
 355                 }
 356                 ptr++;
 357
 358 // test for equivalent extension
 359                 int need_extension = 1;
 360                 //int extension_len = 0;
 361                 for(int i = 0; i < extensions.size() && need_extension; i++)
 362                 {
 363                         char *ptr1 = ptr;
 364                         extension_ptr = extensions.get(i);
 365 // test an extension
 366                         need_extension = 0;
 367                         while(*ptr1 != 0 && *extension_ptr != 0 && *extension_ptr != '/')
 368                         {
 369                                 if(tolower(*ptr1) != tolower(*extension_ptr))
 370                                 {
 371                                         need_extension = 1;
 372                                         break;
 373                                 }
 374                                 ptr1++;
 375                                 extension_ptr++;
 376                         }
 377
 378                         if(*ptr1 == 0 &&
 379                                 *extension_ptr != 0 &&
 380                                 *extension_ptr != '/')
 381                                 need_extension = 1;
 382                 }
 383
 384 //printf("FormatTools::update_extension %d %d\n", __LINE__, need_extension);
 385 // copy extension
 386                 if(need_extension)
 387                 {
 388                         char *ptr1 = ptr;
 389                         extension_ptr = asset->format != FILE_FFMPEG ?
 390                                 extensions.get(0) : asset->fformat;
 391                         while(*extension_ptr != 0 && *extension_ptr != '/')
 392                                 *ptr1++ = *extension_ptr++;
 393                         *ptr1 = 0;
 394                 }
 395
 396                 int character1 = ptr - asset->path;
 397                 int character2 = strlen(asset->path);
 398 //              *(asset->path + character2) = 0;
 399                 if(path_textbox)
 400                 {
 401                         path_textbox->update(asset->path);
 402                         path_textbox->set_selection(character1, character2, character2);
 403                 }
 404         }
 405 }
 406
 407 void FormatTools::update(Asset *asset, int *file_per_label)
 408 {
 409         this->asset = asset;
 410         this->file_per_label = file_per_label;
 411         if( file_per_label ) labeled_files->update(file_per_label);
 412         if( path_textbox ) path_textbox->update(asset->path);
 413         format_text->update(File::formattostr(asset->format));
 414         update_format();
 415         close_format_windows();
 416 }
 417
 418 void FormatTools::close_format_windows()
 419 {
 420 // This is done in ~file
 421         if( aparams_thread ) {
 422                 if( aparams_thread->running() )
 423                         aparams_thread->file->close_window();
 424                 aparams_thread->join();
 425         }
 426         if( vparams_thread ) {
 427                 if( vparams_thread->running() )
 428                         vparams_thread->file->close_window();
 429                 vparams_thread->join();
 430         }
 431 }
 432
 433 int FormatTools::get_w()
 434 {
 435         return asset->format != FILE_FFMPEG ? w :
 436                 format_ffmpeg->get_x() + format_ffmpeg->get_w();
 437 }
 438
 439 void FormatTools::set_w(int w)
 440 {
 441         this->w = w;
 442 }
 443
 444 void FormatTools::reposition_window(int &init_x, int &init_y)
 445 {
 446         int x = init_x;
 447         int y = init_y;
 448
 449         if(path_textbox)
 450         {
 451                 int px = x;
 452                 path_textbox->reposition_window(px, y);
 453                 px += path_textbox->get_w() + 5;
 454                 path_recent->reposition_window(px, y);
 455                 px += path_recent->get_w() + 8;
 456                 path_button->reposition_window(px, y);
 457                 y += path_textbox->get_h() + 10;
 458         }
 459
 460         format_title->reposition_window(x, y);
 461         x += 90;
 462         format_text->reposition_window(x, y);
 463         x += format_text->get_w();
 464         format_button->reposition_window(x, y);
 465
 466         x = init_x;
 467         y += format_button->get_h() + 10;
 468
 469         if(do_audio)
 470         {
 471                 audio_title->reposition_window(x, y);
 472                 x += 80;
 473                 aparams_button->reposition_window(x, y);
 474                 x += aparams_button->get_w() + 10;
 475                 if(prompt_audio) audio_switch->reposition_window(x, y);
 476
 477                 x = init_x;
 478                 y += aparams_button->get_h() + 10;
 479         }
 480
 481
 482         if(do_video)
 483         {
 484                 video_title->reposition_window(x, y);
 485                 x += 80;
 486                 if(prompt_video_compression)
 487                 {
 488                         vparams_button->reposition_window(x, y);
 489                         x += vparams_button->get_w() + 10;
 490                 }
 491
 492                 if(prompt_video)
 493                 {
 494                         video_switch->reposition_window(x, y);
 495                         y += video_switch->get_h();
 496                 }
 497                 else
 498                 {
 499                         y += vparams_button->get_h();
 500                 }
 501
 502                 y += 10;
 503                 x = init_x;
 504         }
 505
 506         if( file_per_label ) {
 507                 labeled_files->reposition_window(x, y);
 508                 y += labeled_files->get_h() + 10;
 509         }
 510
 511         init_y = y;
 512 }
 513
 514
 515 int FormatTools::set_audio_options()
 516 {
 517 //      if(video_driver == CAPTURE_DVB)
 518 //      {
 519 //              return 0;
 520 //      }
 521
 522         if(!aparams_thread->running())
 523         {
 524                 aparams_thread->start();
 525         }
 526         else
 527         {
 528                 aparams_thread->file->raise_window();
 529         }
 530         return 0;
 531 }
 532
 533 int FormatTools::set_video_options()
 534 {
 535 //      if(video_driver == CAPTURE_DVB)
 536 //      {
 537 //              return 0;
 538 //      }
 539
 540         if(!vparams_thread->running())
 541         {
 542                 vparams_thread->start();
 543         }
 544         else
 545         {
 546                 vparams_thread->file->raise_window();
 547         }
 548
 549         return 0;
 550 }
 551
 552
 553
 554
 555
 556 FormatAParams::FormatAParams(MWindow *mwindow, FormatTools *format, int x, int y)
 557  : BC_Button(x, y, mwindow->theme->get_image_set("wrench"))
 558 {
 559         this->format = format;
 560         set_tooltip(_("Configure audio compression"));
 561 }
 562
 563 FormatAParams::~FormatAParams()
 564 {
 565 }
 566
 567 int FormatAParams::handle_event()
 568 {
 569         format->set_audio_options();
 570         format->handle_event();
 571         return 1;
 572 }
 573
 574
 575
 576
 577
 578 FormatVParams::FormatVParams(MWindow *mwindow, FormatTools *format, int x, int y)
 579  : BC_Button(x, y, mwindow->theme->get_image_set("wrench"))
 580 {
 581         this->format = format;
 582         set_tooltip(_("Configure video compression"));
 583 }
 584
 585 FormatVParams::~FormatVParams()
 586 {
 587 }
 588
 589 int FormatVParams::handle_event()
 590 {
 591         format->set_video_options();
 592         format->handle_event();
 593         return 1;
 594 }
 595
 596
 597
 598
 599
 600 FormatAThread::FormatAThread(FormatTools *format)
 601  : Thread(1, 0, 0)
 602 {
 603         this->format = format;
 604         file = new File;
 605         joined = 1;
 606 }
 607
 608 FormatAThread::~FormatAThread()
 609 {
 610         delete file;  file = 0;
 611         join();
 612 }
 613
 614 void FormatAThread::start()
 615 {
 616         join();
 617         joined = 0;
 618         Thread::start();
 619 }
 620
 621
 622 void FormatAThread::run()
 623 {
 624         file->get_options(format, 1, 0);
 625 }
 626
 627
 628
 629
 630 FormatVThread::FormatVThread(FormatTools *format)
 631  : Thread(1, 0, 0)
 632 {
 633         this->format = format;
 634         file = new File;
 635         joined = 1;
 636 }
 637
 638 FormatVThread::~FormatVThread()
 639 {
 640         delete file;  file = 0;
 641         join();
 642 }
 643
 644 void FormatVThread::start()
 645 {
 646         join();
 647         joined = 0;
 648         Thread::start();
 649 }
 650
 651 void FormatVThread::run()
 652 {
 653         file->get_options(format, 0, 1);
 654 }
 655
 656
 657
 658
 659
 660 FormatPathText::FormatPathText(int x, int y, FormatTools *format)
 661  : BC_TextBox(x, y, format->w - x -
 662                 2*format->mwindow->theme->get_image_set("wrench")[0]->get_w() - 20, 1,
 663         format->asset->path)
 664 {
 665         this->format = format;
 666 }
 667
 668 FormatPathText::~FormatPathText()
 669 {
 670 }
 671 int FormatPathText::handle_event()
 672 {
 673         calculate_suggestions();
 674         strcpy(format->asset->path, get_text());
 675         format->handle_event();
 676         return 1;
 677 }
 678
 679
 680
 681
 682 FormatAudio::FormatAudio(int x, int y, FormatTools *format, int default_)
 683  : BC_CheckBox(x,
 684         y,
 685         default_,
 686         (char*)(format->recording ? _("Record audio tracks") : _("Render audio tracks")))
 687 {
 688         this->format = format;
 689 }
 690
 691 FormatAudio::~FormatAudio() {}
 692 int FormatAudio::handle_event()
 693 {
 694         format->asset->audio_data = get_value();
 695         format->handle_event();
 696         return 1;
 697 }
 698
 699
 700 FormatVideo::FormatVideo(int x, int y, FormatTools *format, int default_)
 701  : BC_CheckBox(x,
 702         y,
 703         default_,
 704         (char*)(format->recording ? _("Record video tracks") : _("Render video tracks")))
 705 {
 706 this->format = format;
 707 }
 708
 709 FormatVideo::~FormatVideo() {}
 710 int FormatVideo::handle_event()
 711 {
 712         format->asset->video_data = get_value();
 713         format->handle_event();
 714         return 1;
 715 }
 716
 717
 718
 719
 720 FormatFormat::FormatFormat(int x, int y, FormatTools *format)
 721  : FormatPopup(x, y, format->do_audio, format->do_video, format->use_brender)
 722 {
 723         this->format = format;
 724 }
 725
 726 FormatFormat::~FormatFormat()
 727 {
 728 }
 729
 730 int FormatFormat::handle_event()
 731 {
 732         BC_ListBoxItem *selection = get_selection(0, 0);
 733         if( selection ) {
 734                 int new_format = File::strtoformat(get_selection(0, 0)->get_text());
 735 //              if(new_format != format->asset->format)
 736                 {
 737                         Asset *asset = format->asset;
 738                         asset->format = new_format;
 739                         asset->audio_data = File::renders_audio(asset);
 740                         asset->video_data = File::renders_video(asset);
 741                         asset->ff_audio_options[0] = 0;
 742                         asset->ff_video_options[0] = 0;
 743                         format->format_text->update(selection->get_text());
 744                         if( !format->use_brender )
 745                                 format->update_extension();
 746                         format->close_format_windows();
 747                         if (format->path_recent) format->path_recent->
 748                                 load_items(File::formattostr(format->asset->format));
 749                         format->update_format();
 750                 }
 751                 format->handle_event();
 752         }
 753         return 1;
 754 }
 755
 756
 757 FormatFFMPEG::FormatFFMPEG(int x, int y, FormatTools *format)
 758  : FFMPEGPopup(x, y)
 759 {
 760         this->format = format;
 761 }
 762
 763 FormatFFMPEG::~FormatFFMPEG()
 764 {
 765 }
 766
 767 int FormatFFMPEG::handle_event()
 768 {
 769         BC_ListBoxItem *selection = get_selection(0, 0);
 770         if( selection ) {
 771                 char *text = get_selection(0, 0)->get_text();
 772                 format->ffmpeg_type->update(text);
 773                 format->asset->ff_audio_options[0] = 0;
 774                 format->asset->ff_video_options[0] = 0;
 775                 FFMPEG::set_asset_format(format->asset, format->mwindow->edl, text);
 776                 format->update_extension();
 777                 format->close_format_windows();
 778                 format->update_format();
 779                 format->handle_event();
 780         }
 781         return 1;
 782 }
 783
 784
 785 FormatFilePerLabel::FormatFilePerLabel(FormatTools *format,
 786         int x, int y, int *output)
 787  : BC_CheckBox(x, y, *output, _("Create new file at each label"))
 788 {
 789         this->format = format;
 790         this->output = output;
 791 }
 792
 793 FormatFilePerLabel::~FormatFilePerLabel()
 794 {
 795 }
 796
 797 int FormatFilePerLabel::handle_event()
 798 {
 799         *output = get_value();
 800         format->handle_event();
 801         return 1;
 802 }
 803
 804 void FormatFilePerLabel::update(int *output)
 805 {
 806         this->output = output;
 807         set_value(*output ? 1 : 0);
 808 }
 809
 810