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 <gtkmm/box.h>
  27 #include <gtkmm/filechooserdialog.h>
  28 #include <gtkmm/scrolledwindow.h>
  29 #include <gtkmm/stock.h>
  30
  31 #include "pbd/error.h"
  32 #include "pbd/convert.h"
  33 #include "gtkmm2ext/utils.h"
  34 #include "gtkmm2ext/rgb_macros.h"
  35 #include "ardour/session_directory.h"
  36 #include "ardour/profile.h"
  37 #include "ardour/template_utils.h"
  38 #include "ardour/session.h"
  39 #include "ardour_ui.h"
  40
  41 #include "add_video_dialog.h"
  42 #include "ardour_http.h"
  43 #include "utils_videotl.h"
  44 #include "pbd/i18n.h"
  45
  46 using namespace Gtk;
  47 using namespace std;
  48 using namespace PBD;
  49 using namespace ARDOUR;
  50 using namespace VideoUtils;
  51
  52 #define PREVIEW_WIDTH (240)
  53 #define PREVIEW_HEIGHT (180)
  54
  55 #ifndef MIN
  56 #define MIN(a,b) ( (a) < (b) ? (a) : (b) )
  57 #endif
  58
  59 AddVideoDialog::AddVideoDialog (Session* s)
  60         : ArdourDialog (_("Set Video Track"))
  61         , seek_slider (0,1000,1)
  62         , preview_path ("")
  63         , pi_tcin ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  64         , pi_tcout ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  65         , pi_aspect ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  66         , pi_fps ("-", Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false)
  67         , chooser (FILE_CHOOSER_ACTION_OPEN)
  68         , xjadeo_checkbox (_("Open Video Monitor Window"))
  69         , set_session_fps_checkbox (_("Adjust Session Framerate to Match Video Framerate"))
  70         , harvid_path ("")
  71         , harvid_reset (_("Reload docroot"))
  72         , harvid_list (ListStore::create(harvid_list_columns))
  73         , harvid_list_view (harvid_list)
  74         , show_advanced(false)
  75         , loaded_docroot(false)
  76 {
  77         set_session (s);
  78         set_name ("AddVideoDialog");
  79         set_modal (true);
  80         set_skip_taskbar_hint (true);
  81         set_resizable (true);
  82         set_size_request (800, -1);
  83
  84         harvid_initialized = false;
  85         std::string dstdir = video_dest_dir(_session->session_directory().video_path(), video_get_docroot(Config));
  86
  87         /* Harvid Browser */
  88         harvid_list_view.append_column("", pixBufRenderer);
  89         harvid_list_view.append_column(_("Filename"), harvid_list_columns.filename);
  90
  91         harvid_list_view.get_column(0)->set_alignment(0.5);
  92         harvid_list_view.get_column(0)->add_attribute(pixBufRenderer, "stock-id", harvid_list_columns.id);
  93         harvid_list_view.get_column(1)->set_expand(true);
  94         harvid_list_view.get_column(1)->set_sort_column(harvid_list_columns.filename);
  95         harvid_list_view.set_enable_search(true);
  96         harvid_list_view.set_search_column(1);
  97
  98         harvid_list_view.get_selection()->set_mode (SELECTION_SINGLE);
  99
 100         harvid_list_view.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &AddVideoDialog::harvid_list_view_selected));
 101         harvid_list_view.signal_row_activated().connect (sigc::mem_fun (*this, &AddVideoDialog::harvid_list_view_activated));
 102
 103         Gtk::ScrolledWindow *scroll = manage(new ScrolledWindow);
 104         scroll->add(harvid_list_view);
 105         scroll->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 106
 107         HBox* hbox = manage (new HBox);
 108         harvid_path.set_alignment (0, 0.5);
 109         hbox->pack_start (harvid_path, true, true);
 110         hbox->pack_start (harvid_reset, false, false);
 111
 112         server_index_box.pack_start (*hbox, false, false);
 113         server_index_box.pack_start (*scroll, true, true);
 114
 115         /* file chooser */
 116         chooser.set_border_width (4);
 117 #ifdef __APPLE__
 118         /* some broken redraw behaviour - this is a bandaid */
 119         chooser.signal_selection_changed().connect (mem_fun (chooser, &Widget::queue_draw));
 120 #endif
 121         chooser.set_current_folder (dstdir);
 122
 123         Gtk::FileFilter video_filter;
 124         Gtk::FileFilter matchall_filter;
 125         video_filter.add_custom (FILE_FILTER_FILENAME, mem_fun(*this, &AddVideoDialog::on_video_filter));
 126         video_filter.set_name (_("Video files"));
 127
 128         matchall_filter.add_pattern ("*.*");
 129         matchall_filter.set_name (_("All files"));
 130
 131         chooser.add_filter (video_filter);
 132         chooser.add_filter (matchall_filter);
 133         chooser.set_select_multiple (false);
 134
 135         file_chooser_box.pack_start (chooser, true, true, 0);
 136
 137         /* Global Options*/
 138         Gtk::Label* l;
 139         VBox* options_box = manage (new VBox);
 140
 141         l = manage (new Label (_("<b>Options</b>"), Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false));
 142         l->set_use_markup ();
 143
 144         options_box->pack_start (*l, false, true, 4);
 145         options_box->pack_start (xjadeo_checkbox, false, true, 2);
 146         options_box->pack_start (set_session_fps_checkbox, false, true, 2);
 147
 148         /* preview pane */
 149         VBox* previewpane = manage (new VBox);
 150         Gtk::Table *table = manage(new Table(5,2));
 151
 152         table->set_row_spacings(2);
 153         table->set_col_spacings(4);
 154
 155         l = manage (new Label (_("<b>Video Information</b>"), Gtk::ALIGN_CENTER, Gtk::ALIGN_CENTER, false));
 156         l->set_use_markup ();
 157         table->attach (*l, 0, 2, 0, 1, FILL, FILL);
 158         l = manage (new Label (_("Start:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 159         table->attach (*l, 0, 1, 1, 2, FILL, FILL);
 160         table->attach (pi_tcin, 1, 2, 1, 2, FILL, FILL);
 161         l = manage (new Label (_("End:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 162         table->attach (*l, 0, 1, 2, 3, FILL, FILL);
 163         table->attach (pi_tcout, 1, 2, 2, 3, FILL, FILL);
 164         l = manage (new Label (_("Frame rate:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 165         table->attach (*l, 0, 1, 3, 4, FILL, FILL);
 166         table->attach (pi_fps, 1, 2, 3, 4, FILL, FILL);
 167         l = manage (new Label (_("Aspect Ratio:"), Gtk::ALIGN_RIGHT, Gtk::ALIGN_CENTER, false));
 168         table->attach (*l, 0, 1, 4, 5, FILL, FILL);
 169         table->attach (pi_aspect, 1, 2, 4, 5, FILL, FILL);
 170
 171         preview_image = manage(new Gtk::Image);
 172
 173         imgbuf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, PREVIEW_WIDTH, PREVIEW_HEIGHT);
 174         imgbuf->fill(RGBA_TO_UINT(127,0,0,255));
 175         preview_image->set(imgbuf);
 176         seek_slider.set_draw_value(false);
 177
 178         hbox = manage (new HBox);
 179         hbox->pack_start (*table, true, false);
 180
 181         Gtk::Alignment *al = manage(new Gtk::Alignment());
 182         al->set_size_request(-1, 20);
 183
 184         previewpane->pack_start (*preview_image, false, false);
 185         previewpane->pack_start (seek_slider, false, false);
 186         previewpane->pack_start (*al, false, false);
 187         previewpane->pack_start (*hbox, true, true, 6);
 188
 189         /* Prepare Overall layout */
 190
 191         hbox = manage (new HBox);
 192         hbox->pack_start (browser_container, true, true);
 193         hbox->pack_start (*previewpane, false, false);
 194
 195         get_vbox()->set_spacing (4);
 196         get_vbox()->pack_start (*hbox, true, true);
 197         get_vbox()->pack_start (*options_box, false, false);
 198
 199         /* xjadeo checkbox */
 200         if (ARDOUR_UI::instance()->video_timeline->found_xjadeo()
 201 #ifndef PLATFORM_WINDOWS
 202                         /* TODO xjadeo setup w/ xjremote */
 203                         && video_get_docroot(Config).size() > 0
 204 #endif
 205                  ) {
 206                 xjadeo_checkbox.set_active(true);  /* set in ardour_ui.cpp ?! */
 207         } else {
 208                 printf("xjadeo was not found or video-server docroot is unset (remote video-server)\n");
 209                 xjadeo_checkbox.set_active(false);
 210                 xjadeo_checkbox.set_sensitive(false);
 211         }
 212
 213         /* FPS checkbox */
 214         set_session_fps_checkbox.set_active(true);
 215
 216         /* Buttons */
 217         add_button (Stock::CANCEL, RESPONSE_CANCEL);
 218         ok_button = add_button (Stock::OK, RESPONSE_ACCEPT);
 219         //ok_button->set_sensitive(false);
 220         set_action_ok(false);
 221
 222         /* connect signals after eveything has been initialized */
 223         chooser.signal_selection_changed().connect (mem_fun (*this, &AddVideoDialog::file_selection_changed));
 224         chooser.signal_file_activated().connect (mem_fun (*this, &AddVideoDialog::file_activated));
 225         //chooser.signal_update_preview().connect(sigc::mem_fun(*this, &AddVideoDialog::update_preview));
 226         notebook.signal_switch_page().connect (sigc::hide_return (sigc::hide (sigc::hide (sigc::mem_fun (*this, &AddVideoDialog::page_switch)))));
 227         seek_slider.signal_value_changed().connect(sigc::mem_fun(*this, &AddVideoDialog::seek_preview));
 228         harvid_reset.signal_clicked().connect (sigc::mem_fun (*this, &AddVideoDialog::harvid_load_docroot));
 229 }
 230
 231 AddVideoDialog::~AddVideoDialog ()
 232 {
 233 }
 234
 235 void
 236 AddVideoDialog::on_show ()
 237 {
 238         /* overall layout depending on get_video_advanced_setup() and docroot */
 239         for (int i = notebook.get_n_pages(); i > 0 ; --i) {
 240                 notebook.remove_page(i);
 241         }
 242         if (server_index_box.get_parent()) {
 243                 server_index_box.get_parent()->remove(server_index_box);
 244         }
 245         if (file_chooser_box.get_parent()) {
 246                 file_chooser_box.get_parent()->remove(file_chooser_box);
 247         }
 248         if (notebook.get_parent()) {
 249                 notebook.get_parent()->remove(notebook);
 250         }
 251
 252         if (Config->get_video_advanced_setup()) {
 253                 notebook.append_page (server_index_box, _("VideoServerIndex"));
 254                 if (video_get_docroot(Config).size() > 0) {
 255                         notebook.append_page (file_chooser_box, _("Browse Files"));
 256                 }
 257                 browser_container.pack_start (notebook, true, true);
 258                 show_advanced = true;
 259                 if (!loaded_docroot) {
 260                         harvid_load_docroot();
 261                 }
 262         } else {
 263                 browser_container.pack_start (file_chooser_box, true, true);
 264                 show_advanced = false;
 265                 loaded_docroot = false;
 266         }
 267
 268         show_all_children ();
 269
 270         Dialog::on_show ();
 271 }
 272
 273 static bool check_video_file_extension(std::string file)
 274 {
 275         const char* suffixes[] = {
 276                 ".avi"     , ".AVI"     ,
 277                 ".mov"     , ".MOV"     ,
 278                 ".ogg"     , ".OGG"     ,
 279                 ".ogv"     , ".OGV"     ,
 280                 ".mpg"     , ".MPG"     ,
 281                 ".mpeg"    , ".MPEG"    ,
 282                 ".mts"     , ".MTS"     ,
 283                 ".m2t"     , ".M2T"     ,
 284                 ".mov"     , ".MOV"     ,
 285                 ".mp4"     , ".MP4"     ,
 286                 ".mkv"     , ".MKV"     ,
 287                 ".vob"     , ".VOB"     ,
 288                 ".asf"     , ".ASF"     ,
 289                 ".avs"     , ".AVS"     ,
 290                 ".dts"     , ".DTS"     ,
 291                 ".flv"     , ".FLV"     ,
 292                 ".m4v"     , ".M4V"     ,
 293                 ".matroska", ".MATROSKA",
 294                 ".h264"    , ".H264"    ,
 295                 ".dv"      , ".DV"      ,
 296                 ".dirac"   , ".DIRAC"   ,
 297                 ".webm"    , ".WEBM"    ,
 298                 ".wmv"     , ".WMV"     ,
 299                 ".ts"      , ".TS"      ,
 300                 ".mxf"     , ".MXF"     ,
 301         };
 302
 303         for (size_t n = 0; n < sizeof(suffixes)/sizeof(suffixes[0]); ++n) {
 304                 if (file.rfind (suffixes[n]) == file.length() - strlen (suffixes[n])) {
 305                         return true;
 306                 }
 307         }
 308
 309         return false;
 310 }
 311
 312 bool
 313 AddVideoDialog::on_video_filter (const FileFilter::Info& filter_info)
 314 {
 315         return check_video_file_extension(filter_info.filename);
 316 }
 317
 318 std::string
 319 AddVideoDialog::file_name (bool &local_file)
 320 {
 321         int n = notebook.get_current_page ();
 322         if (n == 1 || !show_advanced) {
 323                 local_file = true;
 324                 return chooser.get_filename();
 325         } else {
 326                 local_file = false;
 327                 Gtk::TreeModel::iterator iter = harvid_list_view.get_selection()->get_selected();
 328                 if(!iter) return "";
 329
 330                 std::string uri = (*iter)[harvid_list_columns.uri];
 331                 std::string video_server_url = video_get_server_url(Config);
 332
 333                 /* check if video server is running locally */
 334                 if (
 335 #ifdef PLATFORM_WINDOWS
 336                                 (video_get_docroot(Config).size() > 0 || !show_advanced)
 337 #else
 338                                 video_get_docroot(Config).size() > 0
 339 #endif
 340                                 &&
 341                                 (0 == video_server_url.compare (0, 16, "http://127.0.0.1") || 0 == video_server_url.compare (0, 16, "http://localhost"))
 342                    )
 343                 {
 344                         /* check if the file can be accessed */
 345                         int plen;
 346                         CURL *curl;
 347                         curl = curl_easy_init();
 348                         char *ue = curl_easy_unescape(curl, uri.c_str(), uri.length(), &plen);
 349 #ifdef PLATFORM_WINDOWS
 350                         char *tmp;
 351                         while ((tmp = strchr(ue, '/'))) *tmp = '\\';
 352 #endif
 353                         std::string path = video_get_docroot(Config) + ue;
 354                         if (!::access(path.c_str(), R_OK)) {
 355                                 uri = path;
 356                                 local_file = true;
 357                         }
 358                         curl_easy_cleanup(curl);
 359                         curl_free(ue);
 360                 }
 361                 return uri;
 362         }
 363 }
 364
 365 enum VtlImportOption
 366 AddVideoDialog::import_option ()
 367 {
 368         int n = notebook.get_current_page ();
 369         if (n == 0 && show_advanced) { return VTL_IMPORT_NONE; }
 370         return VTL_IMPORT_TRANSCODE;
 371 }
 372
 373 bool
 374 AddVideoDialog::launch_xjadeo ()
 375 {
 376         return xjadeo_checkbox.get_active();
 377 }
 378
 379 bool
 380 AddVideoDialog::auto_set_session_fps ()
 381 {
 382         return set_session_fps_checkbox.get_active();
 383 }
 384
 385 void
 386 AddVideoDialog::clear_preview_image ()
 387 {
 388         imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 389         video_draw_cross(imgbuf);
 390         preview_image->set(imgbuf);
 391         preview_image->show();
 392 }
 393
 394 void
 395 AddVideoDialog::set_action_ok (bool yn)
 396 {
 397         if (yn) {
 398                 ok_button->set_sensitive(true);
 399         } else {
 400                 preview_path = "";
 401                 pi_tcin.set_text("-");
 402                 pi_tcout.set_text("-");
 403                 pi_aspect.set_text("-");
 404                 pi_fps.set_text("-");
 405                 ok_button->set_sensitive(false);
 406                 clear_preview_image();
 407         }
 408 }
 409
 410 void
 411 AddVideoDialog::file_selection_changed ()
 412 {
 413         if (chooser.get_filename().size() > 0) {
 414                 std::string path = chooser.get_filename();
 415                 bool ok =
 416                                 Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_REGULAR | Glib::FILE_TEST_IS_SYMLINK)
 417                                 && !Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_DIR);
 418                 set_action_ok(ok);
 419                 if (ok) {
 420                         seek_slider.set_value(0);
 421                         request_preview(video_map_path(video_get_docroot(Config), path));
 422                 }
 423         } else {
 424                 set_action_ok(false);
 425         }
 426 }
 427
 428 void
 429 AddVideoDialog::file_activated ()
 430 {
 431         if (chooser.get_filename().size() > 0) {
 432                 std::string path = chooser.get_filename();
 433                 // TODO check docroot -> set import options
 434                 bool ok =
 435                                 Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_REGULAR | Glib::FILE_TEST_IS_SYMLINK)
 436                                 && !Glib::file_test(path.c_str(), Glib::FILE_TEST_IS_DIR);
 437                 if (ok) {
 438                         Gtk::Dialog::response(RESPONSE_ACCEPT);
 439                 }
 440         }
 441 }
 442
 443 /**** Tree List Interaction ***/
 444
 445 void
 446 AddVideoDialog::harvid_list_view_selected () {
 447         Gtk::TreeModel::iterator iter = harvid_list_view.get_selection()->get_selected();
 448         // TODO check docroot -> set import options, xjadeo
 449         if(!iter) {
 450                 set_action_ok(false);
 451                 return;
 452         }
 453         if ((std::string)((*iter)[harvid_list_columns.id]) == Stock::DIRECTORY.id) {
 454                 set_action_ok(false);
 455         } else {
 456                 set_action_ok(true);
 457                 seek_slider.set_value(0);
 458                 request_preview((*iter)[harvid_list_columns.uri]);
 459         }
 460 }
 461
 462 void
 463 AddVideoDialog::harvid_list_view_activated (const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn*) {
 464         Gtk::TreeModel::iterator iter = harvid_list->get_iter(path);
 465         if (!iter) return;
 466         std::string type = (*iter)[harvid_list_columns.id];
 467         std::string url = (*iter)[harvid_list_columns.uri];
 468
 469 #if 0
 470         printf ("A: %s %s %s\n",
 471                         ((std::string)((*iter)[harvid_list_columns.id])).c_str(),
 472                         ((std::string)((*iter)[harvid_list_columns.uri])).c_str(),
 473                         ((std::string)((*iter)[harvid_list_columns.filename])).c_str());
 474 #endif
 475
 476         if (type == Gtk::Stock::DIRECTORY.id) {
 477                 harvid_request(url.c_str());
 478         } else {
 479                 Gtk::Dialog::response(RESPONSE_ACCEPT);
 480         }
 481 }
 482
 483 void
 484 AddVideoDialog::harvid_load_docroot() {
 485         set_action_ok(false);
 486         loaded_docroot = true;
 487
 488         std::string video_server_url = video_get_server_url(Config);
 489         char url[2048];
 490         snprintf(url, sizeof(url), "%s%sindex/"
 491                 , video_server_url.c_str()
 492                 , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/");
 493         harvid_request(url);
 494         harvid_initialized = true;
 495 }
 496
 497 bool
 498 AddVideoDialog::page_switch() {
 499         if (notebook.get_current_page () == 1 || show_advanced) {
 500                 file_selection_changed();
 501                 return true;
 502         }
 503
 504         if (harvid_initialized) {
 505                 harvid_list_view_selected();
 506         } else {
 507                 harvid_load_docroot();
 508         }
 509         return true;
 510 }
 511
 512 /**** Harvid HTTP interface ***/
 513 void
 514 AddVideoDialog::harvid_request(std::string u)
 515 {
 516         char url[2048];
 517         int status;
 518         snprintf(url, sizeof(url), "%s?format=csv", u.c_str());
 519
 520         harvid_list->clear();
 521
 522         char* res = ArdourCurl::http_get (url, &status, false);
 523         if (status != 200) {
 524                 printf("request failed\n"); // XXX
 525                 harvid_path.set_text(" - request failed -");
 526                 free(res);
 527                 return;
 528         }
 529
 530         /* add up-to-parent */
 531         size_t se = u.find_last_of("/", u.size()-2);
 532         size_t ss = u.find("/index/");
 533         if (se != string::npos && ss != string::npos && se > ss) {
 534                 TreeModel::iterator new_row = harvid_list->append();
 535                 TreeModel::Row row = *new_row;
 536                 row[harvid_list_columns.id      ] = Gtk::Stock::DIRECTORY.id;
 537                 row[harvid_list_columns.uri     ] = u.substr(0, se + 1);
 538                 row[harvid_list_columns.filename] = X_("..");
 539         }
 540         if (se != string::npos) {
 541                 int plen;
 542                 std::string path = u.substr(ss + 6);
 543                 CURL *curl;
 544                 curl = curl_easy_init();
 545                 char *ue = curl_easy_unescape(curl, path.c_str(), path.length(), &plen);
 546                 harvid_path.set_text(std::string(ue));
 547                 curl_easy_cleanup(curl);
 548                 curl_free(ue);
 549         } else {
 550                 harvid_path.set_text(" ??? ");
 551         }
 552
 553         if (!res) return;
 554
 555         std::vector<std::vector<std::string> > lines;
 556         ParseCSV(std::string(res), lines);
 557         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 558                 TreeModel::iterator new_row = harvid_list->append();
 559                 TreeModel::Row row = *new_row;
 560
 561                 if (i->at(0) == X_("D")) {
 562                         row[harvid_list_columns.id      ] = Gtk::Stock::DIRECTORY.id;
 563                         row[harvid_list_columns.uri     ] = i->at(1).c_str();
 564                         row[harvid_list_columns.filename] = i->at(2).c_str();
 565                 } else {
 566                         row[harvid_list_columns.id      ] = Gtk::Stock::MEDIA_PLAY.id;
 567                         row[harvid_list_columns.uri     ] = i->at(2).c_str();
 568                         row[harvid_list_columns.filename] = i->at(3).c_str();
 569                 }
 570         }
 571
 572         free(res);
 573 }
 574
 575 void
 576 AddVideoDialog::seek_preview()
 577 {
 578         if (preview_path.size() > 0)
 579                 request_preview(preview_path);
 580 }
 581
 582 void
 583 AddVideoDialog::request_preview(std::string u)
 584 {
 585         std::string video_server_url = video_get_server_url(Config);
 586
 587         double video_file_fps;
 588         long long int video_duration;
 589         double video_start_offset;
 590         double video_aspect_ratio;
 591
 592         int clip_width = PREVIEW_WIDTH;
 593         int clip_height = PREVIEW_HEIGHT;
 594         int clip_xoff, clip_yoff;
 595
 596         if (!video_query_info(video_server_url, u,
 597                         video_file_fps, video_duration, video_start_offset, video_aspect_ratio))
 598         {
 599                 printf("image preview info request failed\n");
 600                 // set_action_ok(false); // XXX only if docroot mismatch
 601                 preview_path = "";
 602                 pi_tcin.set_text("-");
 603                 pi_tcout.set_text("-");
 604                 pi_aspect.set_text("-");
 605                 pi_fps.set_text("-");
 606
 607                 clear_preview_image();
 608                 return;
 609         }
 610
 611         if ((PREVIEW_WIDTH / (double)PREVIEW_HEIGHT) > video_aspect_ratio ) {
 612                 clip_width = MIN(PREVIEW_WIDTH, rint(clip_height * video_aspect_ratio));
 613         } else {
 614                 clip_height = MIN(PREVIEW_HEIGHT, rint(clip_width / video_aspect_ratio));
 615         }
 616
 617         pi_tcin.set_text(Timecode::timecode_format_sampletime(
 618                                 video_start_offset, video_file_fps, video_file_fps, rint(video_file_fps*100.0)==2997));
 619         pi_tcout.set_text(Timecode::timecode_format_sampletime(
 620                                 video_start_offset + video_duration, video_file_fps, video_file_fps, rint(video_file_fps*100.0)==2997));
 621
 622         /* todo break out this code -> re-usability */
 623         const int arc = rint(video_aspect_ratio*100);
 624
 625         switch (arc) {
 626                 case 100:
 627                         pi_aspect.set_text(X_(" 1:1"));  // square (large format stills)
 628                         break;
 629                 case 125:
 630                         pi_aspect.set_text(X_(" 5:4"));
 631                         break;
 632                 case 133:
 633                         pi_aspect.set_text(X_(" 4:3"));
 634                         break;
 635                 case 134:
 636                         pi_aspect.set_text(X_(" 47:35")); // 752x560, Super8-scans
 637                         break;
 638                 case 137:
 639                 case 138:
 640                         pi_aspect.set_text(X_(" 1.37:1")); // 'Academy ratio' <= 1953
 641                         break;
 642                 case 141:
 643                         pi_aspect.set_text(X_(" 1.41:1")); //  Lichtenberg ratio
 644                         break;
 645                 case 150:
 646                         pi_aspect.set_text(X_(" 3:2"));  // classic 35mm
 647                         break;
 648                 case 160:
 649                         pi_aspect.set_text(X_(" 8:5"));  // credit-card size
 650                         break;
 651                 case 162:
 652                         pi_aspect.set_text(X_(" 16:10")); // golden ratio 1.61803..
 653                         break;
 654                 case 166:
 655                 case 167:
 656                         pi_aspect.set_text(X_(" 5:3")); // Super16, EU-widescreen
 657                         break;
 658                 case 177:
 659                 case 178:
 660                         pi_aspect.set_text(X_(" 16:9")); // HD video
 661                         break;
 662                 case 180:
 663                         pi_aspect.set_text(X_(" 9:5"));
 664                         break;
 665                 case 185:
 666                         pi_aspect.set_text(X_(" 1.85:1")); // US widescreen cinema
 667                         break;
 668                 case 200:
 669                         pi_aspect.set_text(X_(" 2:1"));
 670                         break;
 671                 case 239:
 672                 case 240:
 673                         pi_aspect.set_text(X_(" 2.40:1")); // Anamorphic
 674                         break;
 675                 case 266:
 676                 case 267:
 677                         pi_aspect.set_text(X_(" 2.66:1")); // CinemaScope
 678                         break;
 679                 case 275:
 680                         pi_aspect.set_text(X_(" 2.75:1")); // Ultra Panavision
 681                         break;
 682                 case 400:
 683                         pi_aspect.set_text(X_(" 4.00:1")); // three 35mm 1.33:1 polyvision
 684                         break;
 685                 default:
 686                         pi_aspect.set_text(string_compose(X_(" %1:1"), video_aspect_ratio));
 687                 break;
 688         }
 689
 690         pi_fps.set_text(string_compose(_(" %1 fps"), video_file_fps));
 691
 692         clip_xoff = (PREVIEW_WIDTH - clip_width)/2;
 693         clip_yoff = (PREVIEW_HEIGHT - clip_height)/2;
 694
 695         char url[2048];
 696         snprintf(url, sizeof(url), "%s%s?frame=%lli&w=%d&h=%di&file=%s&format=rgb"
 697                 , video_server_url.c_str()
 698                 , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/"
 699                 , (long long) (video_duration * seek_slider.get_value() / 1000.0)
 700                 , clip_width, clip_height, u.c_str());
 701
 702         char* data = ArdourCurl::http_get (url, NULL, false);
 703         if (!data) {
 704                 printf("image preview request failed %s\n", url);
 705                 imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 706                 video_draw_cross(imgbuf);
 707                 preview_path = "";
 708         } else {
 709                 Glib::RefPtr<Gdk::Pixbuf> tmp;
 710                 tmp = Gdk::Pixbuf::create_from_data ((guint8*) data, Gdk::COLORSPACE_RGB, false, 8, clip_width, clip_height, clip_width*3);
 711                 if (clip_width != PREVIEW_WIDTH || clip_height != PREVIEW_HEIGHT) {
 712                         imgbuf->fill(RGBA_TO_UINT(0,0,0,255));
 713                 }
 714                 tmp->copy_area (0, 0, clip_width, clip_height, imgbuf, clip_xoff, clip_yoff);
 715                 preview_path = u;
 716                 free(data);
 717         }
 718         preview_image->set(imgbuf);
 719         preview_image->show();
 720 }