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