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 "add_video_dialog.h"
  37 #include "ardour_http.h"
  38 #include "utils_videotl.h"
  39 #include "pbd/i18n.h"
  40
  41 using namespace Gtk;
  42 using namespace std;
  43 using namespace PBD;
  44 using namespace ARDOUR;
  45 using namespace VideoUtils;
  46
  47 #define PREVIEW_WIDTH (240)
  48 #define PREVIEW_HEIGHT (180)
  49
  50 #ifndef MIN
  51 #define MIN(a,b) ( (a) < (b) ? (a) : (b) )
  52 #endif
  53
  54 AddVideoDialog::AddVideoDialog (Session* s)
  55         : ArdourDialog (_("Set Video Track"))
  56         , seek_slider (0,1000,1)
  57         , preview_path ("")
  58         , pi_tcin ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  59         , pi_tcout ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  60         , pi_aspect ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  61         , pi_fps ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  62         , chooser (FILE_CHOOSER_ACTION_OPEN)
  63         , xjadeo_checkbox (_("Open Video Monitor Window"))
  64         , set_session_fps_checkbox (_("Adjust Session Framerate to Match Video Framerate"))
  65         , harvid_path ("")
  66         , harvid_reset (_("Reload docroot"))
  67         , harvid_list (ListStore::create(harvid_list_columns))
  68         , harvid_list_view (harvid_list)
  69         , show_advanced(false)
  70         , loaded_docroot(false)
  71 {
  72         set_session (s);
  73         set_name ("AddVideoDialog");
  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         /* Harvid Browser */
  83         harvid_list_view.append_column("", pixBufRenderer);
  84         harvid_list_view.append_column(_("Filename"), harvid_list_columns.filename);
  85
  86         harvid_list_view.get_column(0)->set_alignment(0.5);
  87         harvid_list_view.get_column(0)->add_attribute(pixBufRenderer, "stock-id", harvid_list_columns.id);
  88         harvid_list_view.get_column(1)->set_expand(true);
  89         harvid_list_view.get_column(1)->set_sort_column(harvid_list_columns.filename);
  90         harvid_list_view.set_enable_search(true);
  91         harvid_list_view.set_search_column(1);
  92
  93         harvid_list_view.get_selection()->set_mode (SELECTION_SINGLE);
  94
  95         harvid_list_view.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &AddVideoDialog::harvid_list_view_selected));
  96         harvid_list_view.signal_row_activated().connect (sigc::mem_fun (*this, &AddVideoDialog::harvid_list_view_activated));
  97
  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         server_index_box.pack_start (*hbox, false, false);
 108         server_index_box.pack_start (*scroll, true, true);
 109
 110         /* file chooser */
 111         chooser.set_border_width (4);
 112 #ifdef __APPLE__
 113         /* some broken redraw behaviour - this is a bandaid */
 114         chooser.signal_selection_changed().connect (mem_fun (chooser, &Widget::queue_draw));
 115 #endif
 116         chooser.set_current_folder (dstdir);
 117
 118         Gtk::FileFilter video_filter;
 119         Gtk::FileFilter matchall_filter;
 120         video_filter.add_custom (FILE_FILTER_FILENAME, mem_fun(*this, &AddVideoDialog::on_video_filter));
 121         video_filter.set_name (_("Video files"));
 122
 123         matchall_filter.add_pattern ("*.*");
 124         matchall_filter.set_name (_("All files"));
 125
 126         chooser.add_filter (video_filter);
 127         chooser.add_filter (matchall_filter);
 128         chooser.set_select_multiple (false);
 129
 130         file_chooser_box.pack_start (chooser, true, true, 0);
 131
 132         /* Global Options*/
 133         Gtk::Label* l;
 134         VBox* options_box = manage (new VBox);
 135
 136         l = manage (new Label (_("<b>Options</b>"), Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false));
 137         l->set_use_markup ();
 138
 139         options_box->pack_start (*l, false, true, 4);
 140         options_box->pack_start (xjadeo_checkbox, false, true, 2);
 141         options_box->pack_start (set_session_fps_checkbox, false, true, 2);
 142
 143         /* preview pane */
 144         VBox* previewpane = manage (new VBox);
 145         Gtk::Table *table = manage(new Table(5,2));
 146
 147         table->set_row_spacings(2);
 148         table->set_col_spacings(4);
 149
 150         l = manage (new Label (_("<b>Video Information</b>"), Gtk::ALIGN_CENTER, Gtk::ALIGN_CENTER, false));
 151         l->set_use_markup ();
 152         table->attach (*l, 0, 2, 0, 1, FILL, FILL);
 153         l = manage (new Label (_("Start:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 154         table->attach (*l, 0, 1, 1, 2, FILL, FILL);
 155         table->attach (pi_tcin, 1, 2, 1, 2, FILL, FILL);
 156         l = manage (new Label (_("End:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 157         table->attach (*l, 0, 1, 2, 3, FILL, FILL);
 158         table->attach (pi_tcout, 1, 2, 2, 3, FILL, FILL);
 159         l = manage (new Label (_("Frame rate:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 160         table->attach (*l, 0, 1, 3, 4, FILL, FILL);
 161         table->attach (pi_fps, 1, 2, 3, 4, FILL, FILL);
 162         l = manage (new Label (_("Aspect Ratio:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 163         table->attach (*l, 0, 1, 4, 5, FILL, FILL);
 164         table->attach (pi_aspect, 1, 2, 4, 5, FILL, FILL);
 165
 166         preview_image = manage(new Gtk::Image);
 167
 168         imgbuf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, PREVIEW_WIDTH, PREVIEW_HEIGHT);
 169         imgbuf->fill(RGBA_TO_UINT(127,0,0,255));
 170         preview_image->set(imgbuf);
 171         seek_slider.set_draw_value(false);
 172
 173         hbox = manage (new HBox);
 174         hbox->pack_start (*table, true, false);
 175
 176         Gtk::Alignment *al = manage(new Gtk::Alignment());
 177         al->set_size_request(-1, 20);
 178
 179         previewpane->pack_start (*preview_image, false, false);
 180         previewpane->pack_start (seek_slider, false, false);
 181         previewpane->pack_start (*al, false, false);
 182         previewpane->pack_start (*hbox, true, true, 6);
 183
 184         /* Prepare Overall layout */
 185
 186         hbox = manage (new HBox);
 187         hbox->pack_start (browser_container, true, true);
 188         hbox->pack_start (*previewpane, false, false);
 189
 190         get_vbox()->set_spacing (4);
 191         get_vbox()->pack_start (*hbox, true, true);
 192         get_vbox()->pack_start (*options_box, false, false);
 193
 194         /* xjadeo checkbox */
 195         if (ARDOUR_UI::instance()->video_timeline->found_xjadeo()
 196 #ifndef PLATFORM_WINDOWS
 197                         /* TODO xjadeo setup w/ xjremote */
 198                         && video_get_docroot(Config).size() > 0
 199 #endif
 200                  ) {
 201                 xjadeo_checkbox.set_active(true);  /* set in ardour_ui.cpp ?! */
 202         } else {
 203                 printf("xjadeo was not found or video-server docroot is unset (remote video-server)\n");
 204                 xjadeo_checkbox.set_active(false);
 205                 xjadeo_checkbox.set_sensitive(false);
 206         }
 207
 208         /* FPS checkbox */
 209         set_session_fps_checkbox.set_active(true);
 210
 211         /* Buttons */
 212         add_button (Stock::CANCEL, RESPONSE_CANCEL);
 213         ok_button = add_button (Stock::OK, RESPONSE_ACCEPT);
 214         //ok_button->set_sensitive(false);
 215         set_action_ok(false);
 216
 217         /* connect signals after eveything has been initialized */
 218         chooser.signal_selection_changed().connect (mem_fun (*this, &AddVideoDialog::file_selection_changed));
 219         chooser.signal_file_activated().connect (mem_fun (*this, &AddVideoDialog::file_activated));
 220         //chooser.signal_update_preview().connect(sigc::mem_fun(*this, &AddVideoDialog::update_preview));
 221         notebook.signal_switch_page().connect (sigc::hide_return (sigc::hide (sigc::hide (sigc::mem_fun (*this, &AddVideoDialog::page_switch)))));
 222         seek_slider.signal_value_changed().connect(sigc::mem_fun(*this, &AddVideoDialog::seek_preview));
 223         harvid_reset.signal_clicked().connect (sigc::mem_fun (*this, &AddVideoDialog::harvid_load_docroot));
 224 }
 225
 226 AddVideoDialog::~AddVideoDialog ()
 227 {
 228 }
 229
 230 void
 231 AddVideoDialog::on_show ()
 232 {
 233         /* overall layout depending on get_video_advanced_setup() and docroot */
 234         for (int i = notebook.get_n_pages(); i > 0 ; --i) {
 235                 notebook.remove_page(i);
 236         }
 237         if (server_index_box.get_parent()) {
 238                 server_index_box.get_parent()->remove(server_index_box);
 239         }
 240         if (file_chooser_box.get_parent()) {
 241                 file_chooser_box.get_parent()->remove(file_chooser_box);
 242         }
 243         if (notebook.get_parent()) {
 244                 notebook.get_parent()->remove(notebook);
 245         }
 246
 247         if (Config->get_video_advanced_setup()) {
 248                 notebook.append_page (server_index_box, _("VideoServerIndex"));
 249                 if (video_get_docroot(Config).size() > 0) {
 250                         notebook.append_page (file_chooser_box, _("Browse Files"));
 251                 }
 252                 browser_container.pack_start (notebook, true, true);
 253                 show_advanced = true;
 254                 if (!loaded_docroot) {
 255                         harvid_load_docroot();
 256                 }
 257         } else {
 258                 browser_container.pack_start (file_chooser_box, true, true);
 259                 show_advanced = false;
 260                 loaded_docroot = false;
 261         }
 262
 263         show_all_children ();
 264
 265         Dialog::on_show ();
 266 }
 267
 268 static bool check_video_file_extension(std::string file)
 269 {
 270         const char* suffixes[] = {
 271                 ".avi"     , ".AVI"     ,
 272                 ".mov"     , ".MOV"     ,
 273                 ".ogg"     , ".OGG"     ,
 274                 ".ogv"     , ".OGV"     ,
 275                 ".mpg"     , ".MPG"     ,
 276                 ".mpeg"    , ".MPEG"    ,
 277                 ".mts"     , ".MTS"     ,
 278                 ".m2t"     , ".M2T"     ,
 279                 ".mov"     , ".MOV"     ,
 280                 ".mp4"     , ".MP4"     ,
 281                 ".mkv"     , ".MKV"     ,
 282                 ".vob"     , ".VOB"     ,
 283                 ".asf"     , ".ASF"     ,
 284                 ".avs"     , ".AVS"     ,
 285                 ".dts"     , ".DTS"     ,
 286                 ".flv"     , ".FLV"     ,
 287                 ".m4v"     , ".M4V"     ,
 288                 ".matroska", ".MATROSKA",
 289                 ".h264"    , ".H264"    ,
 290                 ".dv"      , ".DV"      ,
 291                 ".dirac"   , ".DIRAC"   ,
 292                 ".webm"    , ".WEBM"    ,
 293                 ".wmv"     , ".WMV"     ,
 294                 ".ts"      , ".TS"      ,
 295                 ".mxf"     , ".MXF"     ,
 296         };
 297
 298         for (size_t n = 0; n < sizeof(suffixes)/sizeof(suffixes[0]); ++n) {
 299                 if (file.rfind (suffixes[n]) == file.length() - strlen (suffixes[n])) {
 300                         return true;
 301                 }
 302         }
 303
 304         return false;
 305 }
 306
 307 bool
 308 AddVideoDialog::on_video_filter (const FileFilter::Info& filter_info)
 309 {
 310         return check_video_file_extension(filter_info.filename);
 311 }
 312
 313 std::string
 314 AddVideoDialog::file_name (bool &local_file)
 315 {
 316         int n = notebook.get_current_page ();
 317         if (n == 1 || !show_advanced) {
 318                 local_file = true;
 319                 return chooser.get_filename();
 320         } else {
 321                 local_file = false;
 322                 Gtk::TreeModel::iterator iter = harvid_list_view.get_selection()->get_selected();
 323                 if(!iter) return "";
 324
 325                 std::string uri = (*iter)[harvid_list_columns.uri];
 326                 std::string video_server_url = video_get_server_url(Config);
 327
 328                 /* check if video server is running locally */
 329                 if (
 330 #ifdef PLATFORM_WINDOWS
 331                                 (video_get_docroot(Config).size() > 0 || !show_advanced)
 332 #else
 333                                 video_get_docroot(Config).size() > 0
 334 #endif
 335                                 &&
 336                                 (0 == video_server_url.compare (0, 16, "http://127.0.0.1") || 0 == video_server_url.compare (0, 16, "http://localhost"))
 337                    )
 338                 {
 339                         /* check if the file can be accessed */
 340                         int plen;
 341                         CURL *curl;
 342                         curl = curl_easy_init();
 343                         char *ue = curl_easy_unescape(curl, uri.c_str(), uri.length(), &plen);
 344 #ifdef PLATFORM_WINDOWS
 345                         char *tmp;
 346                         while ((tmp = strchr(ue, '/'))) *tmp = '\\';
 347 #endif
 348                         std::string path = video_get_docroot(Config) + ue;
 349                         if (!::access(path.c_str(), R_OK)) {
 350                                 uri = path;
 351                                 local_file = true;
 352                         }
 353                         curl_easy_cleanup(curl);
 354                         curl_free(ue);
 355                 }
 356                 return uri;
 357         }
 358 }
 359
 360 enum VtlImportOption
 361 AddVideoDialog::import_option ()
 362 {
 363         int n = notebook.get_current_page ();
 364         if (n == 0 && show_advanced) { return VTL_IMPORT_NONE; }
 365         return VTL_IMPORT_TRANSCODE;
 366 }
 367
 368 bool
 369 AddVideoDialog::launch_xjadeo ()
 370 {
 371         return xjadeo_checkbox.get_active();
 372 }
 373
 374 bool
 375 AddVideoDialog::auto_set_session_fps ()
 376 {
 377         return set_session_fps_checkbox.get_active();
 378 }
 379
 380 void
 381 AddVideoDialog::clear_preview_image ()
 382 {
 383         imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 384         video_draw_cross(imgbuf);
 385         preview_image->set(imgbuf);
 386         preview_image->show();
 387 }
 388
 389 void
 390 AddVideoDialog::set_action_ok (bool yn)
 391 {
 392         if (yn) {
 393                 ok_button->set_sensitive(true);
 394         } else {
 395                 preview_path = "";
 396                 pi_tcin.set_text("-");
 397                 pi_tcout.set_text("-");
 398                 pi_aspect.set_text("-");
 399                 pi_fps.set_text("-");
 400                 ok_button->set_sensitive(false);
 401                 clear_preview_image();
 402         }
 403 }
 404
 405 void
 406 AddVideoDialog::file_selection_changed ()
 407 {
 408         if (chooser.get_filename().size() > 0) {
 409                 std::string path = chooser.get_filename();
 410                 bool ok =
 411                                 Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_REGULAR | Glib::FILE_TEST_IS_SYMLINK)
 412                                 && !Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_DIR);
 413                 set_action_ok(ok);
 414                 if (ok) {
 415                         seek_slider.set_value(0);
 416                         request_preview(video_map_path(video_get_docroot(Config), path));
 417                 }
 418         } else {
 419                 set_action_ok(false);
 420         }
 421 }
 422
 423 void
 424 AddVideoDialog::file_activated ()
 425 {
 426         if (chooser.get_filename().size() > 0) {
 427                 std::string path = chooser.get_filename();
 428                 // TODO check docroot -> set import options
 429                 bool ok =
 430                                 Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_REGULAR | Glib::FILE_TEST_IS_SYMLINK)
 431                                 && !Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_DIR);
 432                 if (ok) {
 433                         Gtk::Dialog::response(RESPONSE_ACCEPT);
 434                 }
 435         }
 436 }
 437
 438 /**** Tree List Interaction ***/
 439
 440 void
 441 AddVideoDialog::harvid_list_view_selected () {
 442         Gtk::TreeModel::iterator iter = harvid_list_view.get_selection()->get_selected();
 443         // TODO check docroot -> set import options, xjadeo
 444         if(!iter) {
 445                 set_action_ok(false);
 446                 return;
 447         }
 448         if ((std::string)((*iter)[harvid_list_columns.id]) == Stock::DIRECTORY.id) {
 449                 set_action_ok(false);
 450         } else {
 451                 set_action_ok(true);
 452                 seek_slider.set_value(0);
 453                 request_preview((*iter)[harvid_list_columns.uri]);
 454         }
 455 }
 456
 457 void
 458 AddVideoDialog::harvid_list_view_activated (const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn*) {
 459         Gtk::TreeModel::iterator iter = harvid_list->get_iter(path);
 460         if (!iter) return;
 461         std::string type = (*iter)[harvid_list_columns.id];
 462         std::string url = (*iter)[harvid_list_columns.uri];
 463
 464 #if 0
 465         printf ("A: %s %s %s\n",
 466                         ((std::string)((*iter)[harvid_list_columns.id])).c_str(),
 467                         ((std::string)((*iter)[harvid_list_columns.uri])).c_str(),
 468                         ((std::string)((*iter)[harvid_list_columns.filename])).c_str());
 469 #endif
 470
 471         if (type == Gtk::Stock::DIRECTORY.id) {
 472                 harvid_request(url.c_str());
 473         } else {
 474                 Gtk::Dialog::response(RESPONSE_ACCEPT);
 475         }
 476 }
 477
 478 void
 479 AddVideoDialog::harvid_load_docroot() {
 480         set_action_ok(false);
 481         loaded_docroot = true;
 482
 483         std::string video_server_url = video_get_server_url(Config);
 484         char url[2048];
 485         snprintf(url, sizeof(url), "%s%sindex/"
 486                 , video_server_url.c_str()
 487                 , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/");
 488         harvid_request(url);
 489         harvid_initialized = true;
 490 }
 491
 492 bool
 493 AddVideoDialog::page_switch() {
 494         if (notebook.get_current_page () == 1 || show_advanced) {
 495                 file_selection_changed();
 496                 return true;
 497         }
 498
 499         if (harvid_initialized) {
 500                 harvid_list_view_selected();
 501         } else {
 502                 harvid_load_docroot();
 503         }
 504         return true;
 505 }
 506
 507 /**** Harvid HTTP interface ***/
 508 void
 509 AddVideoDialog::harvid_request(std::string u)
 510 {
 511         char url[2048];
 512         int status;
 513         snprintf(url, sizeof(url), "%s?format=csv", u.c_str());
 514
 515         harvid_list->clear();
 516
 517         char* res = ArdourCurl::http_get (url, &status);
 518         if (status != 200) {
 519                 printf("request failed\n"); // XXX
 520                 harvid_path.set_text(" - request failed -");
 521                 free(res);
 522                 return;
 523         }
 524
 525         /* add up-to-parent */
 526         size_t se = u.find_last_of("/", u.size()-2);
 527         size_t ss = u.find("/index/");
 528         if (se != string::npos && ss != string::npos && se > ss) {
 529                 TreeModel::iterator new_row = harvid_list->append();
 530                 TreeModel::Row row = *new_row;
 531                 row[harvid_list_columns.id      ] = Gtk::Stock::DIRECTORY.id;
 532                 row[harvid_list_columns.uri     ] = u.substr(0, se + 1);
 533                 row[harvid_list_columns.filename] = X_("..");
 534         }
 535         if (se != string::npos) {
 536                 int plen;
 537                 std::string path = u.substr(ss + 6);
 538                 CURL *curl;
 539                 curl = curl_easy_init();
 540                 char *ue = curl_easy_unescape(curl, path.c_str(), path.length(), &plen);
 541                 harvid_path.set_text(std::string(ue));
 542                 curl_easy_cleanup(curl);
 543                 curl_free(ue);
 544         } else {
 545                 harvid_path.set_text(" ??? ");
 546         }
 547
 548         if (!res) return;
 549
 550         std::vector<std::vector<std::string> > lines;
 551         ParseCSV(std::string(res), lines);
 552         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 553                 TreeModel::iterator new_row = harvid_list->append();
 554                 TreeModel::Row row = *new_row;
 555
 556                 if (i->at(0) == X_("D")) {
 557                         row[harvid_list_columns.id      ] = Gtk::Stock::DIRECTORY.id;
 558                         row[harvid_list_columns.uri     ] = i->at(1).c_str();
 559                         row[harvid_list_columns.filename] = i->at(2).c_str();
 560                 } else {
 561                         row[harvid_list_columns.id      ] = Gtk::Stock::MEDIA_PLAY.id;
 562                         row[harvid_list_columns.uri     ] = i->at(2).c_str();
 563                         row[harvid_list_columns.filename] = i->at(3).c_str();
 564                 }
 565         }
 566
 567         free(res);
 568 }
 569
 570 void
 571 AddVideoDialog::seek_preview()
 572 {
 573         if (preview_path.size() > 0)
 574                 request_preview(preview_path);
 575 }
 576
 577 void
 578 AddVideoDialog::request_preview(std::string u)
 579 {
 580         std::string video_server_url = video_get_server_url(Config);
 581
 582         double video_file_fps;
 583         long long int video_duration;
 584         double video_start_offset;
 585         double video_aspect_ratio;
 586
 587         int clip_width = PREVIEW_WIDTH;
 588         int clip_height = PREVIEW_HEIGHT;
 589         int clip_xoff, clip_yoff;
 590
 591         if (!video_query_info(video_server_url, u,
 592                         video_file_fps, video_duration, video_start_offset, video_aspect_ratio))
 593         {
 594                 printf("image preview info request failed\n");
 595                 // set_action_ok(false); // XXX only if docroot mismatch
 596                 preview_path = "";
 597                 pi_tcin.set_text("-");
 598                 pi_tcout.set_text("-");
 599                 pi_aspect.set_text("-");
 600                 pi_fps.set_text("-");
 601
 602                 clear_preview_image();
 603                 return;
 604         }
 605
 606         if ((PREVIEW_WIDTH / (double)PREVIEW_HEIGHT) > video_aspect_ratio ) {
 607                 clip_width = MIN(PREVIEW_WIDTH, rint(clip_height * video_aspect_ratio));
 608         } else {
 609                 clip_height = MIN(PREVIEW_HEIGHT, rint(clip_width / video_aspect_ratio));
 610         }
 611
 612         pi_tcin.set_text(Timecode::timecode_format_sampletime(
 613                                 video_start_offset, video_file_fps, video_file_fps, rint(video_file_fps*100.0)==2997));
 614         pi_tcout.set_text(Timecode::timecode_format_sampletime(
 615                                 video_start_offset + video_duration, video_file_fps, video_file_fps, rint(video_file_fps*100.0)==2997));
 616
 617         /* todo break out this code -> re-usability */
 618         const int arc = rint(video_aspect_ratio*100);
 619
 620         switch (arc) {
 621                 case 100:
 622                         pi_aspect.set_text(X_(" 1:1"));  // square (large format stills)
 623                         break;
 624                 case 125:
 625                         pi_aspect.set_text(X_(" 5:4"));
 626                         break;
 627                 case 133:
 628                         pi_aspect.set_text(X_(" 4:3"));
 629                         break;
 630                 case 134:
 631                         pi_aspect.set_text(X_(" 47:35")); // 752x560, Super8-scans
 632                         break;
 633                 case 137:
 634                 case 138:
 635                         pi_aspect.set_text(X_(" 1.37:1")); // 'Academy ratio' <= 1953
 636                         break;
 637                 case 141:
 638                         pi_aspect.set_text(X_(" 1.41:1")); //  Lichtenberg ratio
 639                         break;
 640                 case 150:
 641                         pi_aspect.set_text(X_(" 3:2"));  // classic 35mm
 642                         break;
 643                 case 160:
 644                         pi_aspect.set_text(X_(" 8:5"));  // credit-card size
 645                         break;
 646                 case 162:
 647                         pi_aspect.set_text(X_(" 16:10")); // golden ratio 1.61803..
 648                         break;
 649                 case 166:
 650                 case 167:
 651                         pi_aspect.set_text(X_(" 5:3")); // Super16, EU-widescreen
 652                         break;
 653                 case 177:
 654                 case 178:
 655                         pi_aspect.set_text(X_(" 16:9")); // HD video
 656                         break;
 657                 case 180:
 658                         pi_aspect.set_text(X_(" 9:5"));
 659                         break;
 660                 case 185:
 661                         pi_aspect.set_text(X_(" 1.85:1")); // US widescreen cinema
 662                         break;
 663                 case 200:
 664                         pi_aspect.set_text(X_(" 2:1"));
 665                         break;
 666                 case 239:
 667                 case 240:
 668                         pi_aspect.set_text(X_(" 2.40:1")); // Anamorphic
 669                         break;
 670                 case 266:
 671                 case 267:
 672                         pi_aspect.set_text(X_(" 2.66:1")); // CinemaScope
 673                         break;
 674                 case 275:
 675                         pi_aspect.set_text(X_(" 2.75:1")); // Ultra Panavision
 676                         break;
 677                 case 400:
 678                         pi_aspect.set_text(X_(" 4.00:1")); // three 35mm 1.33:1 polyvision
 679                         break;
 680                 default:
 681                         pi_aspect.set_text(string_compose(X_(" %1:1"), video_aspect_ratio));
 682                 break;
 683         }
 684
 685         pi_fps.set_text(string_compose(_(" %1 fps"), video_file_fps));
 686
 687         clip_xoff = (PREVIEW_WIDTH - clip_width)/2;
 688         clip_yoff = (PREVIEW_HEIGHT - clip_height)/2;
 689
 690         char url[2048];
 691         snprintf(url, sizeof(url), "%s%s?frame=%lli&w=%d&h=%di&file=%s&format=rgb"
 692                 , video_server_url.c_str()
 693                 , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/"
 694                 , (long long) (video_duration * seek_slider.get_value() / 1000.0)
 695                 , clip_width, clip_height, u.c_str());
 696
 697         char* data = ArdourCurl::http_get (url, NULL);
 698         if (!data) {
 699                 printf("image preview request failed %s\n", url);
 700                 imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 701                 video_draw_cross(imgbuf);
 702                 preview_path = "";
 703         } else {
 704                 Glib::RefPtr<Gdk::Pixbuf> tmp;
 705                 tmp = Gdk::Pixbuf::create_from_data ((guint8*) data, Gdk::COLORSPACE_RGB, false, 8, clip_width, clip_height, clip_width*3);
 706                 if (clip_width != PREVIEW_WIDTH || clip_height != PREVIEW_HEIGHT) {
 707                         imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 708                 }
 709                 tmp->copy_area (0, 0, clip_width, clip_height, imgbuf, clip_xoff, clip_yoff);
 710                 preview_path = u;
 711                 free(data);
 712         }
 713         preview_image->set(imgbuf);
 714         preview_image->show();
 715 }