cinelerra-5.1/cinelerra/proxy.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2015 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 "assets.h"
  23 #include "bcsignals.h"
  24 #include "cache.h"
  25 #include "clip.h"
  26 #include "confirmsave.h"
  27 #include "cstrdup.h"
  28 #include "edl.h"
  29 #include "edlsession.h"
  30 #include "errorbox.h"
  31 #include "file.h"
  32 #include "filesystem.h"
  33 #include "formattools.h"
  34 #include "language.h"
  35 #include "mainerror.h"
  36 #include "mainprogress.h"
  37 #include "mainundo.h"
  38 #include "mutex.h"
  39 #include "mwindow.h"
  40 #include "mwindowgui.h"
  41 #include "overlayframe.h"
  42 #include "preferences.h"
  43 #include "proxy.h"
  44 #include "renderengine.h"
  45 #include "theme.h"
  46 #include "transportque.h"
  47 #include "vrender.h"
  48
  49 #define WIDTH 400
  50 #define HEIGHT 285
  51 #define MAX_SCALE 16
  52
  53 ProxyMenuItem::ProxyMenuItem(MWindow *mwindow)
  54  : BC_MenuItem(_("Proxy settings..."),  _("Alt-P"), 'p')
  55 {
  56         this->mwindow = mwindow;
  57         set_alt();
  58 }
  59
  60 void ProxyMenuItem::create_objects()
  61 {
  62         dialog = new ProxyDialog(mwindow);
  63 }
  64
  65 int ProxyMenuItem::handle_event()
  66 {
  67         mwindow->gui->unlock_window();
  68         dialog->start();
  69         mwindow->gui->lock_window("ProxyMenuItem::handle_event");
  70
  71         return 1;
  72 }
  73
  74 ProxyDialog::ProxyDialog(MWindow *mwindow)
  75 {
  76         this->mwindow = mwindow;
  77         gui = 0;
  78         asset = new Asset;
  79         bzero(size_text, sizeof(char*) * MAX_SIZES);
  80         bzero(size_factors, sizeof(int) * MAX_SIZES);
  81         total_sizes = 0;
  82 }
  83
  84 ProxyDialog::~ProxyDialog()
  85 {
  86         close_window();
  87         for( int i=0; i<MAX_SIZES; ++i ) delete [] size_text[i];
  88         asset->remove_user();
  89 }
  90
  91 BC_Window* ProxyDialog::new_gui()
  92 {
  93         asset->format = FILE_FFMPEG;
  94         asset->load_defaults(mwindow->defaults, "PROXY_", 1, 1, 0, 0, 0);
  95         mwindow->gui->lock_window("ProxyDialog::new_gui");
  96         int cx, cy;
  97         mwindow->gui->get_abs_cursor_xy(cx, cy);
  98         gui = new ProxyWindow(mwindow, this, cx - WIDTH/2, cy - HEIGHT/2);
  99         gui->create_objects();
 100         mwindow->gui->unlock_window();
 101         return gui;
 102 }
 103
 104 void ProxyDialog::scale_to_text(char *string, int scale)
 105 {
 106         strcpy(string, size_text[0]);
 107         for( int i = 0; i < total_sizes; i++ ) {
 108                 if( scale == size_factors[i] ) {
 109                         strcpy(string, size_text[i]);
 110                         break;
 111                 }
 112         }
 113 }
 114
 115
 116 void ProxyDialog::calculate_sizes()
 117 {
 118         for( int i=1; i<total_sizes; ++i ) {
 119                 delete [] size_text[i];
 120                 size_text[i] = 0;
 121                 size_factors[i] = 0;
 122         }
 123         total_sizes = 1;
 124
 125         int orig_w = mwindow->edl->session->output_w * orig_scale;
 126         int orig_h = mwindow->edl->session->output_h * orig_scale;
 127
 128         if( !use_scaler ) {
 129 // w,h should stay even for yuv
 130                 int ow = orig_w, oh = orig_h;
 131                 if( BC_CModels::is_yuv(mwindow->edl->session->color_model) ) {
 132                         ow /= 2;  oh /= 2;
 133                 }
 134                 for( int i=2; i<MAX_SCALE; ++i ) {
 135                         if( (ow % i) != 0 ) continue;
 136                         if( (oh % i) != 0 ) continue;
 137                         size_factors[total_sizes++] = i;
 138                 }
 139         }
 140         else {
 141                 size_factors[total_sizes++] = 2;   size_factors[total_sizes++] = 3;
 142                 size_factors[total_sizes++] = 8;   size_factors[total_sizes++] = 12;
 143                 size_factors[total_sizes++] = 16;  size_factors[total_sizes++] = 24;
 144                 size_factors[total_sizes++] = 32;
 145         }
 146         for( int i=1; i<total_sizes; ++i ) {
 147                 char string[BCTEXTLEN];
 148                 sprintf(string, "1/%d", size_factors[i]);
 149                 size_text[i] = cstrdup(string);
 150         }
 151 }
 152
 153 void ProxyDialog::handle_close_event(int result)
 154 {
 155         asset->save_defaults(mwindow->defaults, "PROXY_", 1, 1, 0, 0, 0);
 156
 157         if( !result )
 158                 to_proxy();
 159 }
 160
 161 void ProxyDialog::to_proxy()
 162 {
 163         ArrayList<Indexable*> orig_idxbls;
 164         ArrayList<Indexable*> proxy_assets;
 165
 166         EDL *edl = mwindow->edl;
 167         mwindow->edl->Garbage::add_user();
 168         mwindow->save_backup();
 169         mwindow->undo->update_undo_before(_("proxy"), this);
 170         ProxyRender proxy_render(mwindow, asset);
 171
 172 // revert project to original size from current size
 173 // remove all session proxy assets at the at the current proxy_scale
 174         int proxy_scale = edl->session->proxy_scale;
 175         if( proxy_scale > 1 ) {
 176                 Asset *orig_asset = edl->assets->first;
 177                 for( ; orig_asset; orig_asset=orig_asset->next ) {
 178                         char new_path[BCTEXTLEN];
 179                         proxy_render.to_proxy_path(new_path, orig_asset, proxy_scale);
 180                         Asset *proxy_asset = edl->assets->get_asset(new_path);
 181                         if( !proxy_asset ) continue;
 182 // test if proxy asset was already added to proxy_assets
 183                         int got_it = 0;
 184                         for( int i = 0; !got_it && i<proxy_assets.size(); ++i )
 185                                 got_it = !strcmp(proxy_assets[i]->path, new_path);
 186                         if( got_it ) continue;
 187 // add pointer to existing EDL asset if it exists
 188 // EDL won't delete it unless it's the same pointer.
 189                         proxy_assets.append(proxy_asset);
 190                         proxy_asset->add_user();
 191                         orig_idxbls.append(orig_asset);
 192                         orig_asset->add_user();
 193                 }
 194
 195 // convert from the proxy assets to the original assets
 196                 int proxy_auto_scale = edl->session->proxy_auto_scale;
 197                 mwindow->set_proxy(0, 1, proxy_auto_scale, &proxy_assets, &orig_idxbls);
 198
 199 // remove the references
 200                 for( int i=0; i<proxy_assets.size(); ++i )
 201                         proxy_assets[i]->remove_user();
 202                 proxy_assets.remove_all();
 203                 for( int i = 0; i < orig_idxbls.size(); i++ )
 204                         orig_idxbls[i]->remove_user();
 205                 orig_idxbls.remove_all();
 206         }
 207
 208         ArrayList<char *> confirm_paths;    // test for new files
 209         confirm_paths.set_array_delete();
 210
 211 // convert to new size if not original size
 212         if( new_scale != 1 ) {
 213                 FileSystem fs;
 214                 Asset *orig = mwindow->edl->assets->first;
 215                 for( ; orig; orig=orig->next ) {
 216                         Asset *proxy = proxy_render.add_original(orig, new_scale);
 217                         if( !proxy ) continue;
 218                         int exists = fs.get_size(proxy->path) > 0 ? 1 : 0;
 219                         int got_it = exists && // if proxy exists, and is newer than orig
 220                             fs.get_date(proxy->path) > fs.get_date(orig->path) ? 1 : 0;
 221                         if( !got_it ) {
 222                                 if( exists ) // prompt user to overwrite
 223                                         confirm_paths.append(cstrdup(proxy->path));
 224                                 proxy_render.add_needed(orig, proxy);
 225                         }
 226                 }
 227         }
 228
 229         int result = 0;
 230 // test for existing files
 231         if( confirm_paths.size() ) {
 232                 result = ConfirmSave::test_files(mwindow, &confirm_paths);
 233                 confirm_paths.remove_all_objects();
 234         }
 235
 236         if( !result )
 237                 result = proxy_render.create_needed_proxies(new_scale);
 238
 239         if( !result ) // resize project
 240                 mwindow->set_proxy(use_scaler, new_scale, auto_scale,
 241                         &proxy_render.orig_idxbls, &proxy_render.orig_proxies);
 242
 243         mwindow->undo->update_undo_after(_("proxy"), LOAD_ALL);
 244         mwindow->edl->Garbage::remove_user();
 245         mwindow->restart_brender();
 246
 247         mwindow->gui->lock_window("ProxyDialog::to_proxy");
 248         mwindow->update_project(LOAD_ALL);
 249         mwindow->gui->unlock_window();
 250 }
 251
 252
 253 void ProxyRender::to_proxy_path(char *new_path, Indexable *indexable, int scale)
 254 {
 255 // path is already a proxy
 256         if( strstr(indexable->path, ".proxy") ) return;
 257         strcpy(new_path, indexable->path);
 258         char prxy[BCSTRLEN];
 259         int n = sprintf(prxy, ".proxy%d", scale);
 260 // insert proxy, path.sfx => path.proxy#-sfx.ext
 261         char *ep = new_path + strlen(new_path);
 262         char *sfx = strrchr(new_path, '.');
 263         if( sfx ) {
 264                 char *bp = ep, *cp = (ep += n);
 265                 while( --bp > sfx ) *--cp = *bp;
 266                 *--cp = '-';
 267         }
 268         else {
 269                 sfx = ep;  ep += n;
 270         }
 271         for( char *cp=prxy; --n>=0; ++cp ) *sfx++ = *cp;
 272         const char *ext = format_asset->format == FILE_FFMPEG ?
 273                 format_asset->fformat : File::get_tag(format_asset->format);
 274         *ep++ = '.';
 275         while( *ext ) *ep++ = *ext++;
 276         *ep = 0;
 277 //printf("ProxyRender::to_proxy_path %d %s %s\n", __LINE__, new_path), asset->path);
 278 }
 279
 280 void ProxyRender::from_proxy_path(char *new_path, Asset *asset, int scale)
 281 {
 282         char prxy[BCTEXTLEN];
 283         int n = sprintf(prxy, ".proxy%d", scale);
 284         strcpy(new_path, asset->path);
 285         char *ptr = strstr(asset->path, prxy);
 286         if( !ptr || (ptr[n] != '-' && ptr[n] != '.') ) return;
 287 // remove proxy, path.proxy#-sfx.ext => path.sfx
 288         char *ext = strrchr(ptr, '.');
 289         if( !ext ) ext = ptr + strlen(ptr);
 290         char *cp = ptr + n;
 291         for( *cp='.'; cp<ext; ++cp ) *ptr++ = *cp;
 292         *ptr = 0;
 293 }
 294
 295 ProxyRender::ProxyRender(MWindow *mwindow, Asset *format_asset)
 296 {
 297         this->mwindow = mwindow;
 298         this->format_asset = format_asset;
 299         progress = 0;
 300         counter_lock = new Mutex("ProxyDialog::counter_lock");
 301         total_rendered = 0;
 302         failed = 0;  canceled = 0;
 303 }
 304
 305 ProxyRender::~ProxyRender()
 306 {
 307         delete progress;
 308         delete counter_lock;
 309
 310         for( int i=0,n=orig_idxbls.size(); i<n; ++i ) orig_idxbls[i]->remove_user();
 311         for( int i=0,n=orig_proxies.size(); i<n; ++i ) orig_proxies[i]->remove_user();
 312         for( int i=0,n=needed_idxbls.size(); i<n; ++i ) needed_idxbls[i]->remove_user();
 313         for( int i=0,n=needed_proxies.size(); i<n; ++i ) needed_proxies[i]->remove_user();
 314 }
 315
 316 Asset *ProxyRender::add_original(Indexable *idxbl, int new_scale)
 317 {
 318         if( !idxbl->have_video() ) return 0;
 319         if( idxbl->get_video_frames() <= 0 ) return 0;
 320 // don't proxy proxies
 321         if( strstr(idxbl->path,".proxy") ) return 0;
 322         char new_path[BCTEXTLEN];
 323         to_proxy_path(new_path, idxbl, new_scale);
 324 // don't proxy if not readable
 325         if( idxbl->is_asset && access(idxbl->path, R_OK) ) return 0;
 326 // add to orig_idxbls & orig_proxies if it isn't already there.
 327         int got_it = 0;
 328         for( int i = 0; !got_it && i<orig_proxies.size(); ++i )
 329                 got_it = !strcmp(orig_proxies[i]->path, new_path);
 330         if( got_it ) return 0;
 331
 332 // new proxy asset
 333         Asset *proxy = new Asset;
 334 // new compression parameters
 335         proxy->copy_format(format_asset, 0);
 336         proxy->update_path(new_path);
 337         proxy->audio_data = 0;
 338         proxy->video_data = 1;
 339         proxy->layers = 1;
 340         proxy->width = idxbl->get_w() / new_scale;
 341         if( proxy->width & 1 ) ++proxy->width;
 342         proxy->actual_width = proxy->width;
 343         proxy->height = idxbl->get_h() / new_scale;
 344         if( proxy->height & 1 ) ++proxy->height;
 345         proxy->actual_height = proxy->height;
 346         proxy->frame_rate = idxbl->get_frame_rate();
 347         proxy->video_length = idxbl->get_video_frames();
 348         orig_proxies.append(proxy);
 349         orig_idxbls.append(idxbl);
 350         idxbl->add_user();
 351         return proxy;
 352 }
 353
 354 void ProxyRender::add_needed(Indexable *idxbl, Asset *proxy)
 355 {
 356         needed_idxbls.append(idxbl);
 357         idxbl->add_user();
 358         needed_proxies.append(proxy);
 359         proxy->add_user();
 360 }
 361
 362 void ProxyRender::update_progress()
 363 {
 364         counter_lock->lock();
 365         ++total_rendered;
 366         counter_lock->unlock();
 367         progress->update(total_rendered);
 368 }
 369
 370 int ProxyRender::is_canceled()
 371 {
 372         return progress->is_cancelled();
 373 }
 374
 375 int ProxyRender::create_needed_proxies(int new_scale)
 376 {
 377         if( !needed_proxies.size() ) return 0;
 378         total_rendered = 0;
 379         failed = 0;  canceled = 0;
 380
 381 // create proxy assets which don't already exist
 382         int64_t total_len = 0;
 383         for( int i = 0; i < needed_idxbls.size(); i++ ) {
 384                 total_len += needed_idxbls[i]->get_video_frames();
 385         }
 386
 387 // start progress bar.  MWindow is locked inside this
 388         progress = mwindow->mainprogress->
 389                 start_progress(_("Creating proxy files..."), total_len);
 390
 391         ProxyFarm engine(mwindow, this, &needed_idxbls, &needed_proxies);
 392         engine.process_packages();
 393 printf("failed=%d canceled=%d\n", failed, progress->is_cancelled());
 394
 395 // stop progress bar
 396         canceled = progress->is_cancelled();
 397         progress->stop_progress();
 398         delete progress;  progress = 0;
 399
 400         if( failed && !canceled ) {
 401                 eprintf("Error making proxy.");
 402         }
 403
 404         return !failed && !canceled ? 0 : 1;
 405 }
 406
 407
 408 ProxyWindow::ProxyWindow(MWindow *mwindow, ProxyDialog *dialog, int x, int y)
 409  : BC_Window(_(PROGRAM_NAME ": Proxy settings"), x, y, WIDTH, HEIGHT,
 410                 -1, -1, 0, 0, 1)
 411 {
 412         this->mwindow = mwindow;
 413         this->dialog = dialog;
 414         format_tools = 0;
 415 }
 416
 417 ProxyWindow::~ProxyWindow()
 418 {
 419         lock_window("ProxyWindow::~ProxyWindow");
 420         delete format_tools;
 421         unlock_window();
 422 }
 423
 424
 425 void ProxyWindow::create_objects()
 426 {
 427         lock_window("ProxyWindow::create_objects");
 428         int margin = mwindow->theme->widget_border;
 429
 430         dialog->use_scaler = mwindow->edl->session->proxy_use_scaler;
 431         dialog->orig_scale = mwindow->edl->session->proxy_scale;
 432         dialog->auto_scale = mwindow->edl->session->proxy_auto_scale;
 433         dialog->new_scale = dialog->orig_scale;
 434
 435         int x = margin;
 436         int y = margin+10;
 437         add_subwindow(use_scaler = new ProxyUseScaler(this, x, y));
 438         y += use_scaler->get_h() + margin;
 439
 440         BC_Title *text;
 441         add_subwindow(text = new BC_Title(x, y, _("Scale factor:")));
 442         x += text->get_w() + margin;
 443
 444         dialog->size_text[0] = cstrdup(_("Original size"));
 445         dialog->size_factors[0] = 1;
 446         dialog->total_sizes = 1;
 447         int popupmenu_w = BC_PopupMenu::calculate_w(get_text_width(MEDIUMFONT, dialog->size_text[0]));
 448         add_subwindow(scale_factor = new ProxyMenu(mwindow, this, x, y, popupmenu_w, ""));
 449         scale_factor->update_sizes();
 450         x += scale_factor->get_w() + margin;
 451
 452         ProxyTumbler *tumbler;
 453         add_subwindow(tumbler = new ProxyTumbler(mwindow, this, x, y));
 454         y += tumbler->get_h() + margin;
 455
 456         x = margin;
 457         add_subwindow(text = new BC_Title(x, y, _("New media dimensions: ")));
 458         x += text->get_w() + margin;
 459         add_subwindow(new_dimensions = new BC_Title(x, y, ""));
 460         y += new_dimensions->get_h() + margin;
 461
 462         x = margin;  y += 25;
 463         format_tools = new ProxyFormatTools(mwindow, this, dialog->asset);
 464         format_tools->create_objects(x, y, 0, 1, 0, 0, 0, 1, 0, 1, // skip the path
 465                 0, 0);
 466
 467         x = margin;
 468         add_subwindow(auto_scale = new ProxyAutoScale(this, x, y));
 469         y += auto_scale->get_h() + margin;
 470
 471         update();
 472
 473         add_subwindow(new BC_OKButton(this));
 474         add_subwindow(new BC_CancelButton(this));
 475         show_window(1);
 476         unlock_window();
 477 }
 478
 479 ProxyFormatTools::ProxyFormatTools(MWindow *mwindow, ProxyWindow *pwindow, Asset *asset)
 480  : FormatTools(mwindow, pwindow, asset)
 481 {
 482         this->pwindow = pwindow;
 483 }
 484
 485 void ProxyFormatTools::update_format()
 486 {
 487         FormatTools::update_format();
 488         pwindow->use_scaler->update();
 489 }
 490
 491 void ProxyWindow::update()
 492 {
 493 // preview the new size
 494         char string[BCTEXTLEN];
 495 //printf("ProxyWindow::update %d %d %d %d %d\n",
 496 // __LINE__, mwindow->edl->session->output_w, mwindow->edl->session->output_h,
 497 // dialog->orig_scale, dialog->new_scale);
 498         int orig_w = mwindow->edl->session->output_w * dialog->orig_scale;
 499         int orig_h = mwindow->edl->session->output_h * dialog->orig_scale;
 500         int new_w = orig_w / dialog->new_scale;
 501         if( new_w & 1 ) ++new_w;
 502         int new_h = orig_h / dialog->new_scale;
 503         if( new_h & 1 ) ++new_h;
 504         sprintf(string, "%dx%d", new_w, new_h);
 505         new_dimensions->update(string);
 506         dialog->scale_to_text(string, dialog->new_scale);
 507         scale_factor->set_text(string);
 508         use_scaler->update();
 509         auto_scale->update();
 510 }
 511
 512
 513 ProxyUseScaler::ProxyUseScaler(ProxyWindow *pwindow, int x, int y)
 514  : BC_CheckBox(x, y, pwindow->dialog->use_scaler, _("Use scaler   (FFMPEG only)"))
 515 {
 516         this->pwindow = pwindow;
 517 }
 518
 519 void ProxyUseScaler::update()
 520 {
 521         ProxyDialog *dialog = pwindow->dialog;
 522         if( dialog->asset->format != FILE_FFMPEG ) dialog->use_scaler = 0;
 523         BC_CheckBox::update(dialog->use_scaler);
 524         int scaler_avail = dialog->asset->format == FILE_FFMPEG ? 1 : 0;
 525         if( !scaler_avail &&  enabled ) disable();
 526         if( scaler_avail  && !enabled ) enable();
 527 }
 528
 529 int ProxyUseScaler::handle_event()
 530 {
 531         pwindow->dialog->new_scale = 1;
 532         pwindow->dialog->use_scaler = get_value();
 533         pwindow->scale_factor->update_sizes();
 534         pwindow->update();
 535         return 1;
 536 }
 537
 538 ProxyAutoScale::ProxyAutoScale(ProxyWindow *pwindow, int x, int y)
 539  : BC_CheckBox(x, y, pwindow->dialog->use_scaler, _("Auto proxy/scale media loads"))
 540 {
 541         this->pwindow = pwindow;
 542 }
 543
 544 void ProxyAutoScale::update()
 545 {
 546         ProxyDialog *dialog = pwindow->dialog;
 547         if( dialog->new_scale == 1 ) dialog->auto_scale = 0;
 548         BC_CheckBox::update(dialog->auto_scale);
 549         int can_auto_proxy = dialog->new_scale != 1 ? 1 : 0;
 550         if( !can_auto_proxy &&  enabled ) disable();
 551         if( can_auto_proxy  && !enabled ) enable();
 552 }
 553
 554 int ProxyAutoScale::handle_event()
 555 {
 556         pwindow->dialog->auto_scale = get_value();
 557         pwindow->update();
 558         return 1;
 559 }
 560
 561
 562 ProxyMenu::ProxyMenu(MWindow *mwindow, ProxyWindow *pwindow,
 563                 int x, int y, int w, const char *text)
 564  : BC_PopupMenu(x, y, w, text, 1)
 565 {
 566         this->mwindow = mwindow;
 567         this->pwindow = pwindow;
 568 }
 569
 570 void ProxyMenu::update_sizes()
 571 {
 572         while( total_items() > 0 ) del_item(0);
 573         ProxyDialog *dialog = pwindow->dialog;
 574         dialog->calculate_sizes();
 575         for( int i=0; i < dialog->total_sizes; i++ )
 576                 add_item(new BC_MenuItem(dialog->size_text[i]));
 577 }
 578
 579 int ProxyMenu::handle_event()
 580 {
 581         ProxyDialog *dialog = pwindow->dialog;
 582         for( int i = 0; i < dialog->total_sizes; i++ ) {
 583                 if( !strcmp(get_text(), pwindow->dialog->size_text[i]) ) {
 584                         dialog->new_scale = pwindow->dialog->size_factors[i];
 585                         if( dialog->new_scale == 1 ) dialog->use_scaler = 0;
 586                         pwindow->update();
 587                         break;
 588                 }
 589         }
 590         return 1;
 591 }
 592
 593
 594 ProxyTumbler::ProxyTumbler(MWindow *mwindow, ProxyWindow *pwindow, int x, int y)
 595  : BC_Tumbler(x, y, 0)
 596 {
 597         this->mwindow = mwindow;
 598         this->pwindow = pwindow;
 599 }
 600
 601 int ProxyTumbler::handle_up_event()
 602 {
 603         if( pwindow->dialog->new_scale > 1 ) {
 604                 int i;
 605                 for( i = 0; i < pwindow->dialog->total_sizes; i++ ) {
 606                         if( pwindow->dialog->new_scale == pwindow->dialog->size_factors[i] ) {
 607                                 i--;
 608                                 pwindow->dialog->new_scale = pwindow->dialog->size_factors[i];
 609                                 pwindow->update();
 610                                 return 1;
 611                         }
 612                 }
 613         }
 614
 615         return 0;
 616 }
 617
 618 int ProxyTumbler::handle_down_event()
 619 {
 620         int i;
 621         for( i = 0; i < pwindow->dialog->total_sizes - 1; i++ ) {
 622                 if( pwindow->dialog->new_scale == pwindow->dialog->size_factors[i] ) {
 623                         i++;
 624                         pwindow->dialog->new_scale = pwindow->dialog->size_factors[i];
 625                         pwindow->update();
 626                         return 1;
 627                 }
 628         }
 629
 630         return 0;
 631 }
 632
 633
 634
 635 ProxyPackage::ProxyPackage()
 636  : LoadPackage()
 637 {
 638 }
 639
 640 ProxyClient::ProxyClient(MWindow *mwindow,
 641                 ProxyRender *proxy_render, ProxyFarm *server)
 642  : LoadClient(server)
 643 {
 644         this->mwindow = mwindow;
 645         this->proxy_render = proxy_render;
 646         render_engine = 0;
 647         video_cache = 0;
 648         src_file = 0;
 649 }
 650 ProxyClient::~ProxyClient()
 651 {
 652         delete render_engine;
 653         delete video_cache;
 654         delete src_file;
 655 }
 656
 657 void ProxyClient::process_package(LoadPackage *ptr)
 658 {
 659         if( proxy_render->failed ) return;
 660         if( proxy_render->is_canceled() ) return;
 661
 662         EDL *edl = mwindow->edl;
 663         Preferences *preferences = mwindow->preferences;
 664         ProxyPackage *package = (ProxyPackage*)ptr;
 665         Indexable *orig = package->orig_idxbl;
 666         Asset *proxy = package->proxy_asset;
 667 //printf("%s %s\n", orig->path, proxy->path);
 668         VRender *vrender = 0;
 669         int processors = 1, result = 0;
 670
 671         if( orig->is_asset ) {
 672                 src_file = new File;
 673                 src_file->set_processors(processors);
 674                 src_file->set_preload(edl->session->playback_preload);
 675                 src_file->set_subtitle(edl->session->decode_subtitles ?
 676                         edl->session->subtitle_number : -1);
 677                 src_file->set_interpolate_raw(edl->session->interpolate_raw);
 678                 src_file->set_white_balance_raw(edl->session->white_balance_raw);
 679                 if( src_file->open_file(preferences, (Asset*)orig, 1, 0) != FILE_OK )
 680                         result = 1;
 681         }
 682         else {
 683                 TransportCommand command;
 684                 command.command = CURRENT_FRAME;
 685                 command.get_edl()->copy_all((EDL *)orig);
 686                 command.change_type = CHANGE_ALL;
 687                 command.realtime = 0;
 688                 render_engine = new RenderEngine(0, preferences, 0, 0);
 689                 render_engine->set_vcache(video_cache = new CICache(preferences));
 690                 render_engine->arm_command(&command);
 691                 if( !(vrender = render_engine->vrender) )
 692                         result = 1;
 693         }
 694         if( result ) {
 695 // go to the next asset if the reader fails
 696 //              proxy_render->failed = 1;
 697                 return;
 698         }
 699
 700         File dst_file;
 701         dst_file.set_processors(processors);
 702         result = dst_file.open_file(preferences, proxy, 0, 1);
 703         if( result ) {
 704                 proxy_render->failed = 1;
 705                 return;
 706         }
 707
 708         dst_file.start_video_thread(1, edl->session->color_model,
 709                         processors > 1 ? 2 : 1, 0);
 710
 711         int src_w = orig->get_w(), src_h = orig->get_h();
 712         VFrame src_frame(src_w,src_h, edl->session->color_model);
 713
 714         OverlayFrame scaler(processors);
 715
 716         for( int64_t i=0, length=orig->get_video_frames(); i<length &&
 717              !proxy_render->failed && !proxy_render->is_canceled(); ++i ) {
 718                 if( orig->is_asset ) {
 719                         src_file->set_video_position(i, 0);
 720                         result = src_file->read_frame(&src_frame);
 721                 }
 722                 else
 723                         result = vrender->process_buffer(&src_frame, i, 0);
 724 //printf("result=%d\n", result);
 725
 726                 if( result ) {
 727 // go to the next asset if the reader fails
 728 //                      proxy_render->failed = 1;
 729                         break;
 730                 }
 731
 732 // have to write after getting the video buffer or it locks up
 733                 VFrame ***dst_frames = dst_file.get_video_buffer();
 734                 VFrame *dst_frame = dst_frames[0][0];
 735                 int dst_w = dst_frame->get_w(), dst_h = dst_frame->get_h();
 736                 scaler.overlay(dst_frame, &src_frame,
 737                         0,0, src_w,src_h, 0,0, dst_w,dst_h,
 738                         1.0, TRANSFER_REPLACE, NEAREST_NEIGHBOR);
 739                 result = dst_file.write_video_buffer(1);
 740                 if( result ) {
 741 // only fail if the writer fails
 742                         proxy_render->failed = 1;
 743                         break;
 744                 }
 745                 proxy_render->update_progress();
 746         }
 747 }
 748
 749
 750 ProxyFarm::ProxyFarm(MWindow *mwindow, ProxyRender *proxy_render,
 751                 ArrayList<Indexable*> *orig_idxbls,
 752                 ArrayList<Asset*> *proxy_assets)
 753  : LoadServer(MIN(mwindow->preferences->processors, proxy_assets->size()),
 754         proxy_assets->size())
 755 {
 756         this->mwindow = mwindow;
 757         this->proxy_render = proxy_render;
 758         this->orig_idxbls = orig_idxbls;
 759         this->proxy_assets = proxy_assets;
 760 }
 761
 762 void ProxyFarm::init_packages()
 763 {
 764         for( int i = 0; i < get_total_packages(); i++ ) {
 765                 ProxyPackage *package = (ProxyPackage*)get_package(i);
 766                 package->proxy_asset = proxy_assets->get(i);
 767                 package->orig_idxbl = orig_idxbls->get(i);
 768         }
 769 }
 770
 771 LoadClient* ProxyFarm::new_client()
 772 {
 773         return new ProxyClient(mwindow, proxy_render, this);
 774 }
 775
 776 LoadPackage* ProxyFarm::new_package()
 777 {
 778         return new ProxyPackage;
 779 }
 780