gtk2_ardour/add_video_dialog.cc

   1 /*
   2     Copyright (C) 2010-2013 Paul Davis
   3     Author: Robin Gareus <robin@gareus.org>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20 #ifdef WITH_VIDEOTIMELINE
  21
  22 #include <cstdio>
  23 #include <cmath>
  24
  25 #include <sigc++/bind.h>
  26 #include <curl/curl.h>
  27
  28 #include "pbd/error.h"
  29 #include "pbd/convert.h"
  30 #include "gtkmm2ext/utils.h"
  31 #include "gtkmm2ext/rgb_macros.h"
  32 #include "ardour/session_directory.h"
  33 #include "ardour/profile.h"
  34 #include "ardour/template_utils.h"
  35 #include "ardour/session.h"
  36 #include "ardour_ui.h"
  37
  38 #include "utils.h"
  39 #include "add_video_dialog.h"
  40 #include "utils_videotl.h"
  41 #include "i18n.h"
  42
  43 using namespace Gtk;
  44 using namespace std;
  45 using namespace PBD;
  46 using namespace ARDOUR;
  47
  48 #define PREVIEW_WIDTH (240)
  49 #define PREVIEW_HEIGHT (180)
  50
  51 #ifndef MIN
  52 #define MIN(a,b) ( (a) < (b) ? (a) : (b) )
  53 #endif
  54
  55 AddVideoDialog::AddVideoDialog (Session* s)
  56         : ArdourDialog (_("Set Video Track"))
  57         , seek_slider (0,1000,1)
  58         , preview_path ("")
  59         , pi_tcin ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  60         , pi_tcout ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  61         , pi_aspect ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  62         , pi_fps ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  63         , chooser (FILE_CHOOSER_ACTION_OPEN)
  64         , xjadeo_checkbox (_("Launch External Video Monitor"))
  65         , set_session_fps_checkbox (_("Adjust Session Framerate to Match Video Framerate"))
  66         , harvid_path ("")
  67         , harvid_reset (_("Reload docroot"))
  68         , harvid_list (ListStore::create(harvid_list_columns))
  69         , harvid_list_view (harvid_list)
  70 {
  71         set_session (s);
  72         set_name ("AddVideoDialog");
  73         set_position (Gtk::WIN_POS_MOUSE);
  74         set_modal (true);
  75         set_skip_taskbar_hint (true);
  76         set_resizable (true);
  77         set_size_request (800, -1);
  78
  79         harvid_initialized = false;
  80         std::string dstdir = video_dest_dir(_session->session_directory().video_path(), video_get_docroot(Config));
  81
  82         if (Config->get_video_advanced_setup()) {
  83
  84                 /* Harvid Browser */
  85                 harvid_list_view.append_column("", pixBufRenderer);
  86                 harvid_list_view.append_column(_("Filename"), harvid_list_columns.filename);
  87
  88                 harvid_list_view.get_column(0)->set_alignment(0.5);
  89                 harvid_list_view.get_column(0)->add_attribute(pixBufRenderer, "stock-id", harvid_list_columns.id);
  90                 harvid_list_view.get_column(1)->set_expand(true);
  91                 harvid_list_view.get_column(1)->set_sort_column(harvid_list_columns.filename);
  92                 harvid_list_view.set_enable_search(true);
  93                 harvid_list_view.set_search_column(1);
  94
  95                 harvid_list_view.get_selection()->set_mode (SELECTION_SINGLE);
  96
  97                 harvid_list_view.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &AddVideoDialog::harvid_list_view_selected));
  98                 harvid_list_view.signal_row_activated().connect (sigc::mem_fun (*this, &AddVideoDialog::harvid_list_view_activated));
  99
 100                 VBox* vbox = manage (new VBox);
 101                 Gtk::ScrolledWindow *scroll = manage(new ScrolledWindow);
 102                 scroll->add(harvid_list_view);
 103                 scroll->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 104
 105                 HBox* hbox = manage (new HBox);
 106                 harvid_path.set_alignment (0, 0.5);
 107                 hbox->pack_start (harvid_path, true, true);
 108                 hbox->pack_start (harvid_reset, false, false);
 109
 110                 vbox->pack_start (*hbox, false, false);
 111                 vbox->pack_start (*scroll, true, true);
 112
 113                 notebook.append_page (*vbox, _("VideoServerIndex"));
 114         } else {
 115                 /* dummy entry */
 116                 VBox* vbox = manage (new VBox);
 117                 notebook.append_page (*vbox, _("VideoServerIndex"));
 118         }
 119
 120         /* file chooser */
 121         chooser.set_border_width (4);
 122 #ifdef GTKOSX
 123         /* some broken redraw behaviour - this is a bandaid */
 124         chooser.signal_selection_changed().connect (mem_fun (chooser, &Widget::queue_draw));
 125 #endif
 126         chooser.set_current_folder (dstdir);
 127
 128         Gtk::FileFilter video_filter;
 129         Gtk::FileFilter matchall_filter;
 130         video_filter.add_custom (FILE_FILTER_FILENAME, mem_fun(*this, &AddVideoDialog::on_video_filter));
 131         video_filter.set_name (_("Video files"));
 132
 133         matchall_filter.add_pattern ("*.*");
 134         matchall_filter.set_name (_("All files"));
 135
 136         chooser.add_filter (video_filter);
 137         chooser.add_filter (matchall_filter);
 138         chooser.set_select_multiple (false);
 139
 140         VBox* vboxfb = manage (new VBox);
 141         vboxfb->pack_start (chooser, true, true, 0);
 142
 143         if (video_get_docroot(Config).size() > 0 &&
 144                         Config->get_video_advanced_setup()) {
 145                 notebook.append_page (*vboxfb, _("Browse Files"));
 146         }
 147
 148         /* Global Options*/
 149         Gtk::Label* l;
 150         VBox* options_box = manage (new VBox);
 151
 152         l = manage (new Label (_("<b>Options</b>"), Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false));
 153         l->set_use_markup ();
 154
 155         options_box->pack_start (*l, false, true, 4);
 156         options_box->pack_start (xjadeo_checkbox, false, true, 2);
 157         options_box->pack_start (set_session_fps_checkbox, false, true, 2);
 158
 159         /* preview pane */
 160         VBox* previewpane = manage (new VBox);
 161         Gtk::Table *table = manage(new Table(5,2));
 162
 163         table->set_row_spacings(2);
 164         table->set_col_spacings(4);
 165
 166         l = manage (new Label (_("<b>Video Information</b>"), Gtk::ALIGN_CENTER, Gtk::ALIGN_CENTER, false));
 167         l->set_use_markup ();
 168         table->attach (*l, 0, 2, 0, 1, FILL, FILL);
 169         l = manage (new Label (_("Start:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 170         table->attach (*l, 0, 1, 1, 2, FILL, FILL);
 171         table->attach (pi_tcin, 1, 2, 1, 2, FILL, FILL);
 172         l = manage (new Label (_("End:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 173         table->attach (*l, 0, 1, 2, 3, FILL, FILL);
 174         table->attach (pi_tcout, 1, 2, 2, 3, FILL, FILL);
 175         l = manage (new Label (_("Frame rate:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 176         table->attach (*l, 0, 1, 3, 4, FILL, FILL);
 177         table->attach (pi_fps, 1, 2, 3, 4, FILL, FILL);
 178         l = manage (new Label (_("Aspect Ratio:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 179         table->attach (*l, 0, 1, 4, 5, FILL, FILL);
 180         table->attach (pi_aspect, 1, 2, 4, 5, FILL, FILL);
 181
 182         preview_image = manage(new Gtk::Image);
 183
 184         imgbuf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, PREVIEW_WIDTH, PREVIEW_HEIGHT);
 185         imgbuf->fill(RGBA_TO_UINT(127,0,0,255));
 186         preview_image->set(imgbuf);
 187         seek_slider.set_draw_value(false);
 188
 189         HBox* hbox = manage (new HBox);
 190         hbox->pack_start (*table, true, false);
 191
 192         Gtk::Alignment *al = manage(new Gtk::Alignment());
 193         al->set_size_request(-1, 20);
 194
 195         previewpane->pack_start (*preview_image, false, false);
 196         previewpane->pack_start (seek_slider, false, false);
 197         previewpane->pack_start (*al, false, false);
 198         previewpane->pack_start (*hbox, true, true, 6);
 199
 200         /* Overall layout */
 201         hbox = manage (new HBox);
 202         if (Config->get_video_advanced_setup()) {
 203                 hbox->pack_start (notebook, true, true);
 204         } else {
 205                 hbox->pack_start (*vboxfb, true, true);
 206         }
 207         hbox->pack_start (*previewpane, false, false);
 208
 209         get_vbox()->set_spacing (4);
 210         get_vbox()->pack_start (*hbox, true, true);
 211         get_vbox()->pack_start (*options_box, false, false);
 212
 213
 214         /* xjadeo checkbox */
 215         if (ARDOUR_UI::instance()->video_timeline->found_xjadeo()
 216                         /* TODO xjadeo setup w/ xjremote */
 217                         && video_get_docroot(Config).size() > 0) {
 218                 xjadeo_checkbox.set_active(true);  /* set in ardour_ui.cpp ?! */
 219         } else {
 220                 printf("xjadeo was not found or video-server docroot is unset (remote video-server)\n");
 221                 xjadeo_checkbox.set_active(false);
 222                 xjadeo_checkbox.set_sensitive(false);
 223         }
 224
 225         /* FPS checkbox */
 226         set_session_fps_checkbox.set_active(true);
 227
 228         /* Buttons */
 229         add_button (Stock::CANCEL, RESPONSE_CANCEL);
 230         ok_button = add_button (Stock::OK, RESPONSE_ACCEPT);
 231         //ok_button->set_sensitive(false);
 232         set_action_ok(false);
 233
 234         /* connect signals after eveything has been initialized */
 235         chooser.signal_selection_changed().connect (mem_fun (*this, &AddVideoDialog::file_selection_changed));
 236         chooser.signal_file_activated().connect (mem_fun (*this, &AddVideoDialog::file_activated));
 237         //chooser.signal_update_preview().connect(sigc::mem_fun(*this, &AddVideoDialog::update_preview));
 238         notebook.signal_switch_page().connect (sigc::hide_return (sigc::hide (sigc::hide (sigc::mem_fun (*this, &AddVideoDialog::page_switch)))));
 239         seek_slider.signal_value_changed().connect(sigc::mem_fun(*this, &AddVideoDialog::seek_preview));
 240         harvid_reset.signal_clicked().connect (sigc::mem_fun (*this, &AddVideoDialog::harvid_load_docroot));
 241
 242         show_all_children ();
 243 }
 244
 245 AddVideoDialog::~AddVideoDialog ()
 246 {
 247 }
 248
 249 void
 250 AddVideoDialog::on_show ()
 251 {
 252         Dialog::on_show ();
 253 }
 254
 255 static bool check_video_file_extension(std::string file)
 256 {
 257         const char* suffixes[] = {
 258                 ".avi"     , ".AVI"     ,
 259                 ".mov"     , ".MOV"     ,
 260                 ".ogg"     , ".OGG"     ,
 261                 ".ogv"     , ".OGV"     ,
 262                 ".mpg"     , ".MPG"     ,
 263                 ".mov"     , ".MOV"     ,
 264                 ".mp4"     , ".MP4"     ,
 265                 ".mkv"     , ".MKV"     ,
 266                 ".vob"     , ".VOB"     ,
 267                 ".asf"     , ".ASF"     ,
 268                 ".avs"     , ".AVS"     ,
 269                 ".dts"     , ".DTS"     ,
 270                 ".flv"     , ".FLV"     ,
 271                 ".m4v"     , ".M4V"     ,
 272                 ".matroska", ".MATROSKA",
 273                 ".h264"    , ".H264"    ,
 274                 ".dv"      , ".DV"      ,
 275                 ".dirac"   , ".DIRAC"   ,
 276                 ".webm"    , ".WEBM"    ,
 277         };
 278
 279         for (size_t n = 0; n < sizeof(suffixes)/sizeof(suffixes[0]); ++n) {
 280                 if (file.rfind (suffixes[n]) == file.length() - strlen (suffixes[n])) {
 281                         return true;
 282                 }
 283         }
 284
 285         return false;
 286 }
 287
 288 bool
 289 AddVideoDialog::on_video_filter (const FileFilter::Info& filter_info)
 290 {
 291         return check_video_file_extension(filter_info.filename);
 292 }
 293
 294 std::string
 295 AddVideoDialog::file_name (bool &local_file)
 296 {
 297         int n = notebook.get_current_page ();
 298         if (n == 1 || ! Config->get_video_advanced_setup()) {
 299                 local_file = true;
 300                 return chooser.get_filename();
 301         } else {
 302                 local_file = false;
 303                 Gtk::TreeModel::iterator iter = harvid_list_view.get_selection()->get_selected();
 304                 if(!iter) return "";
 305
 306                 std::string uri = (*iter)[harvid_list_columns.uri];
 307                 std::string video_server_url = video_get_server_url(Config);
 308
 309                 /* check if video server is running locally */
 310                 if (video_get_docroot(Config).size() > 0
 311                                 && !video_server_url.compare(0, 16, "http://localhost"))
 312                 {
 313                         /* check if the file can be accessed */
 314                         int plen;
 315                         CURL *curl;
 316                         curl = curl_easy_init();
 317                         char *ue = curl_easy_unescape(curl, uri.c_str(), uri.length(), &plen);
 318                         std::string path = video_get_docroot(Config) + ue;
 319                         if (!::access(path.c_str(), R_OK)) {
 320                                 uri = path;
 321                                 local_file = true;
 322                         }
 323                         curl_easy_cleanup(curl);
 324                         curl_free(ue);
 325                 }
 326                 return uri;
 327         }
 328 }
 329
 330 enum VtlImportOption
 331 AddVideoDialog::import_option ()
 332 {
 333         int n = notebook.get_current_page ();
 334         if (n == 0 && Config->get_video_advanced_setup()) { return VTL_IMPORT_NONE; }
 335         return VTL_IMPORT_TRANSCODE;
 336 }
 337
 338 bool
 339 AddVideoDialog::launch_xjadeo ()
 340 {
 341         return xjadeo_checkbox.get_active();
 342 }
 343
 344 bool
 345 AddVideoDialog::auto_set_session_fps ()
 346 {
 347         return set_session_fps_checkbox.get_active();
 348 }
 349
 350 void
 351 AddVideoDialog::clear_preview_image ()
 352 {
 353         imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 354         video_draw_cross(imgbuf);
 355         preview_image->set(imgbuf);
 356         preview_image->show();
 357 }
 358
 359 void
 360 AddVideoDialog::set_action_ok (bool yn)
 361 {
 362         if (yn) {
 363                 ok_button->set_sensitive(true);
 364         } else {
 365                 preview_path = "";
 366                 pi_tcin.set_text("-");
 367                 pi_tcout.set_text("-");
 368                 pi_aspect.set_text("-");
 369                 pi_fps.set_text("-");
 370                 ok_button->set_sensitive(false);
 371                 clear_preview_image();
 372         }
 373 }
 374
 375 void
 376 AddVideoDialog::file_selection_changed ()
 377 {
 378         if (chooser.get_filename().size() > 0) {
 379                 std::string path = chooser.get_filename();
 380                 bool ok =
 381                                 check_video_file_extension(path)
 382                                 &&  Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_REGULAR | Glib::FILE_TEST_IS_SYMLINK)
 383                                 && !Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_DIR);
 384                 set_action_ok(ok);
 385                 if (ok) {
 386                         seek_slider.set_value(0);
 387                         request_preview(video_map_path(video_get_docroot(Config), path));
 388                 }
 389         } else {
 390                 set_action_ok(false);
 391         }
 392 }
 393
 394 void
 395 AddVideoDialog::file_activated ()
 396 {
 397         if (chooser.get_filename().size() > 0) {
 398                 std::string path = chooser.get_filename();
 399                 // TODO check docroot -> set import options
 400                 bool ok =
 401                                 check_video_file_extension(path)
 402                                 &&  Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_REGULAR | Glib::FILE_TEST_IS_SYMLINK)
 403                                 && !Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_DIR);
 404                 if (ok) {
 405                         Gtk::Dialog::response(RESPONSE_ACCEPT);
 406                 }
 407         }
 408 }
 409
 410 /**** Tree List Interaction ***/
 411
 412 void
 413 AddVideoDialog::harvid_list_view_selected () {
 414         Gtk::TreeModel::iterator iter = harvid_list_view.get_selection()->get_selected();
 415         // TODO check docroot -> set import options, xjadeo
 416         if(!iter) {
 417                 set_action_ok(false);
 418                 return;
 419         }
 420         if ((std::string)((*iter)[harvid_list_columns.id]) == Stock::DIRECTORY.id) {
 421                 set_action_ok(false);
 422         } else {
 423                 set_action_ok(true);
 424                 seek_slider.set_value(0);
 425                 request_preview((*iter)[harvid_list_columns.uri]);
 426         }
 427 }
 428
 429 void
 430 AddVideoDialog::harvid_list_view_activated (const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn*) {
 431         Gtk::TreeModel::iterator iter = harvid_list->get_iter(path);
 432         if (!iter) return;
 433         std::string type = (*iter)[harvid_list_columns.id];
 434         std::string url = (*iter)[harvid_list_columns.uri];
 435
 436 #if 0
 437         printf ("A: %s %s %s\n",
 438                         ((std::string)((*iter)[harvid_list_columns.id])).c_str(),
 439                         ((std::string)((*iter)[harvid_list_columns.uri])).c_str(),
 440                         ((std::string)((*iter)[harvid_list_columns.filename])).c_str());
 441 #endif
 442
 443         if (type == Gtk::Stock::DIRECTORY.id) {
 444                 harvid_request(url.c_str());
 445         } else {
 446                 Gtk::Dialog::response(RESPONSE_ACCEPT);
 447         }
 448 }
 449
 450 void
 451 AddVideoDialog::harvid_load_docroot() {
 452         set_action_ok(false);
 453
 454         std::string video_server_url = video_get_server_url(Config);
 455         char url[2048];
 456         snprintf(url, sizeof(url), "%s%sindex/"
 457                 , video_server_url.c_str()
 458                 , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/");
 459         harvid_request(url);
 460         harvid_initialized = true;
 461 }
 462
 463 bool
 464 AddVideoDialog::page_switch() {
 465         if (notebook.get_current_page () == 1 || Config->get_video_advanced_setup()) {
 466                 file_selection_changed();
 467                 return true;
 468         }
 469
 470         if (harvid_initialized) {
 471                 harvid_list_view_selected();
 472         } else {
 473                 harvid_load_docroot();
 474         }
 475         return true;
 476 }
 477
 478 /**** Harvid HTTP interface ***/
 479 void
 480 AddVideoDialog::harvid_request(std::string u)
 481 {
 482         char url[2048];
 483         int status;
 484         snprintf(url, sizeof(url), "%s?format=csv", u.c_str());
 485
 486         harvid_list->clear();
 487
 488         char *res = curl_http_get(url, &status);
 489         if (status != 200) {
 490                 printf("request failed\n"); // XXX
 491                 harvid_path.set_text(" - request failed -");
 492                 free(res);
 493                 return;
 494         }
 495
 496         /* add up-to-parent */
 497         size_t se = u.find_last_of("/", u.size()-2);
 498         size_t ss = u.find("/index/");
 499         if (se != string::npos && ss != string::npos && se > ss) {
 500                 TreeModel::iterator new_row = harvid_list->append();
 501                 TreeModel::Row row = *new_row;
 502                 row[harvid_list_columns.id      ] = Gtk::Stock::DIRECTORY.id;
 503                 row[harvid_list_columns.uri     ] = u.substr(0, se + 1);
 504                 row[harvid_list_columns.filename] = X_("..");
 505         }
 506         if (se != string::npos) {
 507                 int plen;
 508                 std::string path = u.substr(ss + 6);
 509                 CURL *curl;
 510                 curl = curl_easy_init();
 511                 char *ue = curl_easy_unescape(curl, path.c_str(), path.length(), &plen);
 512                 harvid_path.set_text(std::string(ue));
 513                 curl_easy_cleanup(curl);
 514                 curl_free(ue);
 515         } else {
 516                 harvid_path.set_text(" ??? ");
 517         }
 518
 519         if (!res) return;
 520
 521         std::vector<std::vector<std::string> > lines;
 522         ParseCSV(std::string(res), lines);
 523         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 524                 TreeModel::iterator new_row = harvid_list->append();
 525                 TreeModel::Row row = *new_row;
 526
 527                 if (i->at(0) == X_("D")) {
 528                         row[harvid_list_columns.id      ] = Gtk::Stock::DIRECTORY.id;
 529                         row[harvid_list_columns.uri     ] = i->at(1).c_str();
 530                         row[harvid_list_columns.filename] = i->at(2).c_str();
 531                 } else {
 532                         row[harvid_list_columns.id      ] = Gtk::Stock::MEDIA_PLAY.id;
 533                         row[harvid_list_columns.uri     ] = i->at(2).c_str();
 534                         row[harvid_list_columns.filename] = i->at(3).c_str();
 535                 }
 536         }
 537
 538         free(res);
 539 }
 540
 541 void
 542 AddVideoDialog::seek_preview()
 543 {
 544         if (preview_path.size() > 0)
 545                 request_preview(preview_path);
 546 }
 547
 548 void
 549 AddVideoDialog::request_preview(std::string u)
 550 {
 551         std::string video_server_url = video_get_server_url(Config);
 552
 553         double video_file_fps;
 554         long long int video_duration;
 555         double video_start_offset;
 556         double video_aspect_ratio;
 557
 558         int clip_width = PREVIEW_WIDTH;
 559         int clip_height = PREVIEW_HEIGHT;
 560         int clip_xoff, clip_yoff;
 561
 562         if (!video_query_info(video_server_url, u,
 563                         video_file_fps, video_duration, video_start_offset, video_aspect_ratio))
 564         {
 565                 printf("image preview info request failed\n");
 566                 // set_action_ok(false); // XXX only if docroot mismatch
 567                 preview_path = "";
 568                 pi_tcin.set_text("-");
 569                 pi_tcout.set_text("-");
 570                 pi_aspect.set_text("-");
 571                 pi_fps.set_text("-");
 572
 573                 clear_preview_image();
 574                 return;
 575         }
 576
 577         if ((PREVIEW_WIDTH / (double)PREVIEW_HEIGHT) > video_aspect_ratio ) {
 578                 clip_width = MIN(PREVIEW_WIDTH, rint(clip_height * video_aspect_ratio));
 579         } else {
 580                 clip_height = MIN(PREVIEW_HEIGHT, rint(clip_width / video_aspect_ratio));
 581         }
 582
 583         pi_tcin.set_text(Timecode::timecode_format_sampletime(
 584                                 video_start_offset, video_file_fps, video_file_fps, rint(video_file_fps*100.0)==2997));
 585         pi_tcout.set_text(Timecode::timecode_format_sampletime(
 586                                 video_start_offset + video_duration, video_file_fps, video_file_fps, rint(video_file_fps*100.0)==2997));
 587
 588         /* todo break out this code -> re-usability */
 589         const int arc = rint(video_aspect_ratio*100);
 590
 591         switch (arc) {
 592                 case 100:
 593                         pi_aspect.set_text(X_(" 1:1"));  // square (large format stills)
 594                         break;
 595                 case 125:
 596                         pi_aspect.set_text(X_(" 5:4"));
 597                         break;
 598                 case 133:
 599                         pi_aspect.set_text(X_(" 4:3"));
 600                         break;
 601                 case 134:
 602                         pi_aspect.set_text(X_(" 47:35")); // 752x560, Super8-scans
 603                         break;
 604                 case 137:
 605                 case 138:
 606                         pi_aspect.set_text(X_(" 1.37:1")); // 'Academy ratio' <= 1953
 607                         break;
 608                 case 141:
 609                         pi_aspect.set_text(X_(" 1.41:1")); //  Lichtenberg ratio
 610                         break;
 611                 case 150:
 612                         pi_aspect.set_text(X_(" 3:2"));  // classic 35mm
 613                         break;
 614                 case 160:
 615                         pi_aspect.set_text(X_(" 8:5"));  // credit-card size
 616                         break;
 617                 case 162:
 618                         pi_aspect.set_text(X_(" 16:10")); // golden ratio 1.61803..
 619                         break;
 620                 case 166:
 621                 case 167:
 622                         pi_aspect.set_text(X_(" 5:3")); // Super16, EU-widescreen
 623                         break;
 624                 case 177:
 625                 case 178:
 626                         pi_aspect.set_text(X_(" 16:9")); // HD video
 627                         break;
 628                 case 180:
 629                         pi_aspect.set_text(X_(" 9:5"));
 630                         break;
 631                 case 185:
 632                         pi_aspect.set_text(X_(" 1.85:1")); // US widescreen cinema
 633                         break;
 634                 case 200:
 635                         pi_aspect.set_text(X_(" 2:1"));
 636                         break;
 637                 case 239:
 638                 case 240:
 639                         pi_aspect.set_text(X_(" 2.40:1")); // Anamorphic
 640                         break;
 641                 case 266:
 642                 case 267:
 643                         pi_aspect.set_text(X_(" 2.66:1")); // CinemaScope
 644                         break;
 645                 case 275:
 646                         pi_aspect.set_text(X_(" 2.75:1")); // Ultra Panavision
 647                         break;
 648                 case 400:
 649                         pi_aspect.set_text(X_(" 4.00:1")); // three 35mm 1.33:1 polyvision
 650                         break;
 651                 default:
 652                         pi_aspect.set_text(string_compose(X_(" %1:1"), video_aspect_ratio));
 653                 break;
 654         }
 655
 656         pi_fps.set_text(string_compose(_(" %1 fps"), video_file_fps));
 657
 658         clip_xoff = (PREVIEW_WIDTH - clip_width)/2;
 659         clip_yoff = (PREVIEW_HEIGHT - clip_height)/2;
 660
 661         char url[2048];
 662         snprintf(url, sizeof(url), "%s%s?frame=%lli&w=%d&h=%di&file=%s&format=rgb"
 663                 , video_server_url.c_str()
 664                 , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/"
 665                 , (long long) (video_duration * seek_slider.get_value() / 1000.0)
 666                 , clip_width, clip_height, u.c_str());
 667
 668         char *data = curl_http_get(url, NULL);
 669         if (!data) {
 670                 printf("image preview request failed %s\n", url);
 671                 imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 672                 video_draw_cross(imgbuf);
 673                 preview_path = "";
 674         } else {
 675                 Glib::RefPtr<Gdk::Pixbuf> tmp;
 676                 tmp = Gdk::Pixbuf::create_from_data ((guint8*) data, Gdk::COLORSPACE_RGB, false, 8, clip_width, clip_height, clip_width*3);
 677                 if (clip_width != PREVIEW_WIDTH || clip_height != PREVIEW_HEIGHT) {
 678                         imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 679                 }
 680                 tmp->copy_area (0, 0, clip_width, clip_height, imgbuf, clip_xoff, clip_yoff);
 681                 preview_path = u;
 682                 free(data);
 683         }
 684         preview_image->set(imgbuf);
 685         preview_image->show();
 686 }
 687
 688 #endif /* WITH_VIDEOTIMELINE */