src/tools/dcpomatic_player.cc

   1 /*
   2     Copyright (C) 2017-2021 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "wx/about_dialog.h"
  22 #include "wx/file_dialog.h"
  23 #include "wx/film_viewer.h"
  24 #include "wx/nag_dialog.h"
  25 #include "wx/player_config_dialog.h"
  26 #include "wx/player_information.h"
  27 #include "wx/player_stress_tester.h"
  28 #include "wx/playlist_controls.h"
  29 #include "wx/report_problem_dialog.h"
  30 #include "wx/standard_controls.h"
  31 #include "wx/system_information_dialog.h"
  32 #include "wx/timer_display.h"
  33 #include "wx/update_dialog.h"
  34 #include "wx/verify_dcp_dialog.h"
  35 #include "wx/verify_dcp_progress_dialog.h"
  36 #include "wx/wx_ptr.h"
  37 #include "wx/wx_signal_manager.h"
  38 #include "wx/wx_util.h"
  39 #include "lib/compose.hpp"
  40 #include "lib/config.h"
  41 #include "lib/constants.h"
  42 #include "lib/cross.h"
  43 #include "lib/dcp_content.h"
  44 #include "lib/dcp_examiner.h"
  45 #include "lib/dcpomatic_log.h"
  46 #include "lib/dcpomatic_socket.h"
  47 #include "lib/examine_content_job.h"
  48 #include "lib/ffmpeg_content.h"
  49 #include "lib/file_log.h"
  50 #include "lib/film.h"
  51 #include "lib/font_config.h"
  52 #include "lib/image.h"
  53 #include "lib/image_jpeg.h"
  54 #include "lib/image_png.h"
  55 #include "lib/internet.h"
  56 #include "lib/job.h"
  57 #include "lib/job_manager.h"
  58 #include "lib/null_log.h"
  59 #include "lib/player.h"
  60 #include "lib/player_video.h"
  61 #include "lib/ratio.h"
  62 #include "lib/scope_guard.h"
  63 #include "lib/scoped_temporary.h"
  64 #include "lib/server.h"
  65 #include "lib/text_content.h"
  66 #include "lib/update_checker.h"
  67 #include "lib/verify_dcp_job.h"
  68 #include "lib/video_content.h"
  69 #include <dcp/cpl.h>
  70 #include <dcp/dcp.h>
  71 #include <dcp/exceptions.h>
  72 #include <dcp/filesystem.h>
  73 #include <dcp/raw_convert.h>
  74 #include <dcp/search.h>
  75 #include <dcp/warnings.h>
  76 LIBDCP_DISABLE_WARNINGS
  77 #include <wx/cmdline.h>
  78 #include <wx/display.h>
  79 #include <wx/dnd.h>
  80 #include <wx/preferences.h>
  81 #include <wx/progdlg.h>
  82 #include <wx/splash.h>
  83 #include <wx/stdpaths.h>
  84 #include <wx/wx.h>
  85 LIBDCP_ENABLE_WARNINGS
  86 #ifdef __WXGTK__
  87 #include <X11/Xlib.h>
  88 #endif
  89 #include <boost/algorithm/string.hpp>
  90 #include <boost/bind/bind.hpp>
  91 #include <iostream>
  92
  93 #ifdef check
  94 #undef check
  95 #endif
  96
  97
  98 #define MAX_CPLS 32
  99
 100
 101 using std::cout;
 102 using std::dynamic_pointer_cast;
 103 using std::exception;
 104 using std::list;
 105 using std::make_shared;
 106 using std::shared_ptr;
 107 using std::string;
 108 using std::vector;
 109 using std::weak_ptr;
 110 using boost::bind;
 111 using boost::optional;
 112 using boost::scoped_array;
 113 using boost::thread;
 114 #if BOOST_VERSION >= 106100
 115 using namespace boost::placeholders;
 116 #endif
 117 using dcp::raw_convert;
 118 using namespace dcpomatic;
 119
 120
 121 enum {
 122         ID_file_open = 1,
 123         ID_file_add_ov,
 124         ID_file_add_kdm,
 125         ID_file_save_frame,
 126         ID_file_history,
 127         /* Allow spare IDs after _history for the recent files list */
 128         ID_file_close = 100,
 129         ID_view_cpl,
 130         /* Allow spare IDs for CPLs */
 131         ID_view_full_screen = 200,
 132         ID_view_dual_screen,
 133         ID_view_closed_captions,
 134         ID_view_scale_appropriate,
 135         ID_view_scale_full,
 136         ID_view_scale_half,
 137         ID_view_scale_quarter,
 138         ID_help_report_a_problem,
 139         ID_tools_verify,
 140         ID_tools_check_for_updates,
 141         ID_tools_timing,
 142         ID_tools_system_information,
 143         /* IDs for shortcuts (with no associated menu item) */
 144         ID_start_stop,
 145         ID_go_back_frame,
 146         ID_go_forward_frame,
 147         ID_go_back_small_amount,
 148         ID_go_forward_small_amount,
 149         ID_go_back_medium_amount,
 150         ID_go_forward_medium_amount,
 151         ID_go_back_large_amount,
 152         ID_go_forward_large_amount,
 153         ID_go_to_start,
 154         ID_go_to_end
 155 };
 156
 157
 158 class DOMFrame : public wxFrame
 159 {
 160 public:
 161
 162         class DCPDropTarget : public wxFileDropTarget
 163         {
 164         public:
 165                 DCPDropTarget(DOMFrame* owner)
 166                         : _frame(owner)
 167                 {}
 168
 169                 bool OnDropFiles(wxCoord, wxCoord, wxArrayString const& filenames) override
 170                 {
 171                         if (filenames.GetCount() == 1) {
 172                                 /* Try to load a directory */
 173                                 auto path = boost::filesystem::path(wx_to_std(filenames[0]));
 174                                 if (dcp::filesystem::is_directory(path)) {
 175                                         _frame->load_dcp(wx_to_std(filenames[0]));
 176                                         return true;
 177                                 }
 178                         }
 179
 180                         if (filenames.GetCount() >= 1) {
 181                                 /* Try to load the parent if we drop some files, one if which is an asset map */
 182                                 for (size_t i = 0; i < filenames.GetCount(); ++i) {
 183                                         auto path = boost::filesystem::path(wx_to_std(filenames[i]));
 184                                         if (path.filename() == "ASSETMAP" || path.filename() == "ASSETMAP.xml") {
 185                                                 _frame->load_dcp(path.parent_path());
 186                                                 return true;
 187                                         }
 188                                 }
 189                         }
 190
 191                         return false;
 192                 }
 193
 194         private:
 195                 DOMFrame* _frame;
 196         };
 197
 198
 199         DOMFrame ()
 200                 : wxFrame (nullptr, -1, _("DCP-o-matic Player"))
 201                 , _mode (Config::instance()->player_mode())
 202                 /* Use a panel as the only child of the Frame so that we avoid
 203                    the dark-grey background on Windows.
 204                 */
 205                 , _overall_panel(new wxPanel(this, wxID_ANY))
 206                 , _viewer(_overall_panel)
 207                 , _main_sizer (new wxBoxSizer(wxVERTICAL))
 208         {
 209                 dcpomatic_log = make_shared<NullLog>();
 210
 211 #if defined(DCPOMATIC_WINDOWS)
 212                 maybe_open_console ();
 213                 cout << "DCP-o-matic Player is starting." << "\n";
 214 #endif
 215
 216                 auto bar = new wxMenuBar;
 217                 setup_menu (bar);
 218                 set_menu_sensitivity ();
 219                 SetMenuBar (bar);
 220
 221 #ifdef DCPOMATIC_WINDOWS
 222                 SetIcon (wxIcon (std_to_wx ("id")));
 223 #endif
 224
 225                 _config_changed_connection = Config::instance()->Changed.connect (boost::bind (&DOMFrame::config_changed, this, _1));
 226                 update_from_config (Config::PLAYER_DEBUG_LOG);
 227
 228                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_open, this), ID_file_open);
 229                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_ov, this), ID_file_add_ov);
 230                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_kdm, this), ID_file_add_kdm);
 231                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_save_frame, this), ID_file_save_frame);
 232                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_history, this, _1), ID_file_history, ID_file_history + HISTORY_SIZE);
 233                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_close, this), ID_file_close);
 234                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_exit, this), wxID_EXIT);
 235                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::edit_preferences, this), wxID_PREFERENCES);
 236                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_full_screen, this), ID_view_full_screen);
 237                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_dual_screen, this), ID_view_dual_screen);
 238                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_closed_captions, this), ID_view_closed_captions);
 239                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_cpl, this, _1), ID_view_cpl, ID_view_cpl + MAX_CPLS);
 240                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(0)), ID_view_scale_full);
 241                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(1)), ID_view_scale_half);
 242                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(2)), ID_view_scale_quarter);
 243                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_about, this), wxID_ABOUT);
 244                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_report_a_problem, this), ID_help_report_a_problem);
 245                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_verify, this), ID_tools_verify);
 246                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_check_for_updates, this), ID_tools_check_for_updates);
 247                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_timing, this), ID_tools_timing);
 248                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_system_information, this), ID_tools_system_information);
 249
 250                 Bind(wxEVT_CLOSE_WINDOW, boost::bind(&DOMFrame::close, this, _1));
 251
 252                 if (Config::instance()->player_mode() == Config::PLAYER_MODE_DUAL) {
 253                         auto pc = new PlaylistControls (_overall_panel, _viewer);
 254                         _controls = pc;
 255                         pc->ResetFilm.connect (bind(&DOMFrame::reset_film_weak, this, _1));
 256                 } else {
 257                         _controls = new StandardControls (_overall_panel, _viewer, false);
 258                 }
 259                 _controls->set_film(_viewer.film());
 260                 _viewer.set_dcp_decode_reduction(Config::instance()->decode_reduction());
 261                 _viewer.set_optimise_for_j2k(true);
 262                 _viewer.PlaybackPermitted.connect(bind(&DOMFrame::playback_permitted, this));
 263                 _viewer.TooManyDropped.connect(bind(&DOMFrame::too_many_frames_dropped, this));
 264                 _info = new PlayerInformation (_overall_panel, _viewer);
 265                 setup_main_sizer (Config::instance()->player_mode());
 266 #ifdef __WXOSX__
 267                 int accelerators = 12;
 268 #else
 269                 int accelerators = 11;
 270 #endif
 271
 272                 _stress.setup (this, _controls);
 273
 274                 std::vector<wxAcceleratorEntry> accel(accelerators);
 275                 accel[0].Set(wxACCEL_NORMAL,                WXK_SPACE, ID_start_stop);
 276                 accel[1].Set(wxACCEL_NORMAL,                WXK_LEFT,  ID_go_back_frame);
 277                 accel[2].Set(wxACCEL_NORMAL,                WXK_RIGHT, ID_go_forward_frame);
 278                 accel[3].Set(wxACCEL_SHIFT,                 WXK_LEFT,  ID_go_back_small_amount);
 279                 accel[4].Set(wxACCEL_SHIFT,                 WXK_RIGHT, ID_go_forward_small_amount);
 280                 accel[5].Set(wxACCEL_CTRL,                  WXK_LEFT,  ID_go_back_medium_amount);
 281                 accel[6].Set(wxACCEL_CTRL,                  WXK_RIGHT, ID_go_forward_medium_amount);
 282                 accel[7].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_LEFT,  ID_go_back_large_amount);
 283                 accel[8].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_RIGHT, ID_go_forward_large_amount);
 284                 accel[9].Set(wxACCEL_NORMAL,                WXK_HOME,  ID_go_to_start);
 285                 accel[10].Set(wxACCEL_NORMAL,               WXK_END,   ID_go_to_end);
 286 #ifdef __WXOSX__
 287                 accel[11].Set(wxACCEL_CTRL, static_cast<int>('W'), ID_file_close);
 288 #endif
 289                 wxAcceleratorTable accel_table (accelerators, accel.data());
 290                 SetAcceleratorTable (accel_table);
 291
 292                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::start_stop_pressed, this), ID_start_stop);
 293                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_back_frame, this),      ID_go_back_frame);
 294                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_forward_frame, this),   ID_go_forward_frame);
 295                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   -60), ID_go_back_small_amount);
 296                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,    60), ID_go_forward_small_amount);
 297                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  -600), ID_go_back_medium_amount);
 298                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   600), ID_go_forward_medium_amount);
 299                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this, -3600), ID_go_back_large_amount);
 300                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  3600), ID_go_forward_large_amount);
 301                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_start, this), ID_go_to_start);
 302                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_end,   this), ID_go_to_end);
 303
 304                 reset_film ();
 305
 306                 UpdateChecker::instance()->StateChanged.connect (boost::bind(&DOMFrame::update_checker_state_changed, this));
 307                 setup_screen ();
 308
 309                 _stress.LoadDCP.connect (boost::bind(&DOMFrame::load_dcp, this, _1));
 310
 311                 SetDropTarget(new DCPDropTarget(this));
 312         }
 313
 314         ~DOMFrame ()
 315         {
 316                 /* It's important that this is stopped before our frame starts destroying its children,
 317                  * otherwise UI elements that it depends on will disappear from under it.
 318                  */
 319                 _viewer.stop();
 320         }
 321
 322         void close(wxCloseEvent& ev)
 323         {
 324                 FontConfig::drop();
 325                 ev.Skip();
 326         }
 327
 328         void setup_main_sizer (Config::PlayerMode mode)
 329         {
 330                 _main_sizer->Detach(_viewer.panel());
 331                 _main_sizer->Detach (_controls);
 332                 _main_sizer->Detach (_info);
 333                 if (mode != Config::PLAYER_MODE_DUAL) {
 334                         _main_sizer->Add(_viewer.panel(), 1, wxEXPAND);
 335                 }
 336                 _main_sizer->Add (_controls, mode == Config::PLAYER_MODE_DUAL ? 1 : 0, wxEXPAND | wxALL, 6);
 337                 _main_sizer->Add (_info, 0, wxEXPAND | wxALL, 6);
 338                 _overall_panel->SetSizer (_main_sizer);
 339                 _overall_panel->Layout ();
 340         }
 341
 342         bool playback_permitted ()
 343         {
 344                 if (!_film || !Config::instance()->respect_kdm_validity_periods()) {
 345                         return true;
 346                 }
 347
 348                 bool ok = true;
 349                 for (auto i: _film->content()) {
 350                         auto d = dynamic_pointer_cast<DCPContent>(i);
 351                         if (d && !d->kdm_timing_window_valid()) {
 352                                 ok = false;
 353                         }
 354                 }
 355
 356                 if (!ok) {
 357                         error_dialog (this, _("The KDM does not allow playback of this content at this time."));
 358                 }
 359
 360                 return ok;
 361         }
 362
 363
 364         void too_many_frames_dropped ()
 365         {
 366                 if (!Config::instance()->nagged(Config::NAG_TOO_MANY_DROPPED_FRAMES)) {
 367                         _viewer.stop();
 368                 }
 369
 370                 NagDialog::maybe_nag (
 371                         this,
 372                         Config::NAG_TOO_MANY_DROPPED_FRAMES,
 373                         _(wxS("The player is dropping a lot of frames, so playback may not be accurate.\n\n"
 374                           "<b>This does not necessarily mean that the DCP you are playing is defective!</b>\n\n"
 375                           "You may be able to improve player performance by:\n"
 376                           "• choosing 'decode at half resolution' or 'decode at quarter resolution' from the View menu\n"
 377                           "• using a more powerful computer.\n"
 378                          ))
 379                         );
 380         }
 381
 382         void set_decode_reduction (optional<int> reduction)
 383         {
 384                 _viewer.set_dcp_decode_reduction(reduction);
 385                 _info->triggered_update ();
 386                 Config::instance()->set_decode_reduction (reduction);
 387         }
 388
 389         void load_dcp (boost::filesystem::path dir)
 390         {
 391                 DCPOMATIC_ASSERT (_film);
 392
 393                 reset_film ();
 394                 try {
 395                         _stress.set_suspended (true);
 396                         auto dcp = make_shared<DCPContent>(dir);
 397                         auto job = make_shared<ExamineContentJob>(_film, dcp);
 398                         _examine_job_connection = job->Finished.connect(bind(&DOMFrame::add_dcp_to_film, this, weak_ptr<Job>(job), weak_ptr<Content>(dcp)));
 399                         JobManager::instance()->add (job);
 400                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
 401                         if (!ok || !report_errors_from_last_job(this)) {
 402                                 return;
 403                         }
 404                         Config::instance()->add_to_player_history (dir);
 405                         if (dcp->video_frame_rate()) {
 406                                 _film->set_video_frame_rate(dcp->video_frame_rate().get(), true);
 407                         }
 408                 } catch (ProjectFolderError &) {
 409                         error_dialog (
 410                                 this,
 411                                 wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())),
 412                                 _(
 413                                         "This looks like a DCP-o-matic project folder, which cannot be loaded into the player.  "
 414                                         "Choose the DCP folder inside the DCP-o-matic project folder if that's what you want to play."
 415                                  )
 416                                 );
 417                 } catch (dcp::ReadError& e) {
 418                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
 419                 } catch (DCPError& e) {
 420                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
 421                 }
 422         }
 423
 424         void add_dcp_to_film (weak_ptr<Job> weak_job, weak_ptr<Content> weak_content)
 425         {
 426                 auto job = weak_job.lock ();
 427                 if (!job || !job->finished_ok()) {
 428                         return;
 429                 }
 430
 431                 auto content = weak_content.lock ();
 432                 if (!content) {
 433                         return;
 434                 }
 435
 436                 _film->add_content (content);
 437                 _stress.set_suspended (false);
 438         }
 439
 440         void reset_film_weak (weak_ptr<Film> weak_film)
 441         {
 442                 auto film = weak_film.lock ();
 443                 if (film) {
 444                         reset_film (film);
 445                 }
 446         }
 447
 448         void reset_film (shared_ptr<Film> film = shared_ptr<Film>(new Film(optional<boost::filesystem::path>())))
 449         {
 450                 _film = film;
 451                 _film->set_tolerant (true);
 452                 _film->set_audio_channels (MAX_DCP_AUDIO_CHANNELS);
 453                 _viewer.set_film(_film);
 454                 _controls->set_film (_film);
 455                 _film->Change.connect (bind(&DOMFrame::film_changed, this, _1, _2));
 456                 _info->triggered_update ();
 457         }
 458
 459         void film_changed (ChangeType type, FilmProperty property)
 460         {
 461                 if (type != ChangeType::DONE || property != FilmProperty::CONTENT) {
 462                         return;
 463                 }
 464
 465                 if (_viewer.playing()) {
 466                         _viewer.stop();
 467                 }
 468
 469                 /* Start off as Flat */
 470                 _film->set_container (Ratio::from_id("185"));
 471
 472                 for (auto i: _film->content()) {
 473                         auto dcp = dynamic_pointer_cast<DCPContent>(i);
 474
 475                         for (auto j: i->text) {
 476                                 j->set_use (true);
 477                         }
 478
 479                         if (i->video) {
 480                                 auto const r = Ratio::nearest_from_ratio(i->video->size().ratio());
 481                                 if (r->id() == "239") {
 482                                         /* Any scope content means we use scope */
 483                                         _film->set_container(r);
 484                                 }
 485                         }
 486
 487                         /* Any 3D content means we use 3D mode */
 488                         if (i->video && i->video->frame_type() != VideoFrameType::TWO_D) {
 489                                 _film->set_three_d (true);
 490                         }
 491                 }
 492
 493                 _viewer.seek(DCPTime(), true);
 494                 _info->triggered_update ();
 495
 496                 set_menu_sensitivity ();
 497
 498                 auto old = _cpl_menu->GetMenuItems();
 499                 for (auto const& i: old) {
 500                         _cpl_menu->Remove (i);
 501                 }
 502
 503                 if (_film->content().size() == 1) {
 504                         /* Offer a CPL menu */
 505                         auto first = dynamic_pointer_cast<DCPContent>(_film->content().front());
 506                         if (first) {
 507                                 int id = ID_view_cpl;
 508                                 for (auto i: dcp::find_and_resolve_cpls(first->directories(), true)) {
 509                                         auto j = _cpl_menu->AppendRadioItem(
 510                                                 id,
 511                                                 wxString::Format("%s (%s)", std_to_wx(i->annotation_text().get_value_or("")).data(), std_to_wx(i->id()).data())
 512                                                 );
 513                                         j->Check(!first->cpl() || i->id() == *first->cpl());
 514                                         ++id;
 515                                 }
 516                         }
 517                 }
 518         }
 519
 520         void load_stress_script (boost::filesystem::path path)
 521         {
 522                 _stress.load_script (path);
 523         }
 524
 525 private:
 526
 527         void examine_content ()
 528         {
 529                 DCPOMATIC_ASSERT (_film);
 530                 auto dcp = dynamic_pointer_cast<DCPContent>(_film->content().front());
 531                 DCPOMATIC_ASSERT (dcp);
 532                 dcp->examine (_film, shared_ptr<Job>());
 533
 534                 /* Examining content re-creates the TextContent objects, so we must re-enable them */
 535                 for (auto i: dcp->text) {
 536                         i->set_use (true);
 537                 }
 538         }
 539
 540         bool report_errors_from_last_job (wxWindow* parent) const
 541         {
 542                 auto jm = JobManager::instance ();
 543
 544                 DCPOMATIC_ASSERT (!jm->get().empty());
 545
 546                 auto last = jm->get().back();
 547                 if (last->finished_in_error()) {
 548                         error_dialog(parent, wxString::Format(_("Could not load DCP.\n\n%s."), std_to_wx(last->error_summary()).data()), std_to_wx(last->error_details()));
 549                         return false;
 550                 }
 551
 552                 return true;
 553         }
 554
 555         void setup_menu (wxMenuBar* m)
 556         {
 557                 _file_menu = new wxMenu;
 558                 _file_menu->Append (ID_file_open, _("&Open...\tCtrl-O"));
 559                 _file_add_ov = _file_menu->Append (ID_file_add_ov, _("&Add OV..."));
 560                 _file_add_kdm = _file_menu->Append (ID_file_add_kdm, _("Add &KDM..."));
 561                 _file_menu->AppendSeparator ();
 562                 _file_save_frame = _file_menu->Append (ID_file_save_frame, _("&Save frame to file...\tCtrl-S"));
 563
 564                 _history_position = _file_menu->GetMenuItems().GetCount();
 565
 566                 _file_menu->AppendSeparator ();
 567                 _file_menu->Append (ID_file_close, _("&Close"));
 568                 _file_menu->AppendSeparator ();
 569
 570 #ifdef __WXOSX__
 571                 _file_menu->Append (wxID_EXIT, _("&Exit"));
 572 #else
 573                 _file_menu->Append (wxID_EXIT, _("&Quit"));
 574 #endif
 575
 576 #ifdef __WXOSX__
 577                 auto prefs = _file_menu->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 578 #else
 579                 auto edit = new wxMenu;
 580                 auto prefs = edit->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 581 #endif
 582
 583                 prefs->Enable (Config::instance()->have_write_permission());
 584
 585                 _cpl_menu = new wxMenu;
 586
 587                 auto view = new wxMenu;
 588                 auto c = Config::instance()->decode_reduction();
 589                 _view_cpl = view->Append(ID_view_cpl, _("CPL"), _cpl_menu);
 590                 view->AppendSeparator();
 591                 _view_full_screen = view->AppendCheckItem(ID_view_full_screen, _("Full screen\tF11"));
 592                 _view_dual_screen = view->AppendCheckItem(ID_view_dual_screen, _("Dual screen\tShift+F11"));
 593                 setup_menu ();
 594                 view->AppendSeparator();
 595                 view->Append(ID_view_closed_captions, _("Closed captions..."));
 596                 view->AppendSeparator();
 597                 view->AppendRadioItem(ID_view_scale_appropriate, _("Set decode resolution to match display"))->Check(!static_cast<bool>(c));
 598                 view->AppendRadioItem(ID_view_scale_full, _("Decode at full resolution"))->Check(c && c.get() == 0);
 599                 view->AppendRadioItem(ID_view_scale_half, _("Decode at half resolution"))->Check(c && c.get() == 1);
 600                 view->AppendRadioItem(ID_view_scale_quarter, _("Decode at quarter resolution"))->Check(c && c.get() == 2);
 601
 602                 auto tools = new wxMenu;
 603                 _tools_verify = tools->Append (ID_tools_verify, _("Verify DCP..."));
 604                 tools->AppendSeparator ();
 605                 tools->Append (ID_tools_check_for_updates, _("Check for updates"));
 606                 tools->Append (ID_tools_timing, _("Timing..."));
 607                 tools->Append (ID_tools_system_information, _("System information..."));
 608
 609                 auto help = new wxMenu;
 610 #ifdef __WXOSX__
 611                 help->Append (wxID_ABOUT, _("About DCP-o-matic"));
 612 #else
 613                 help->Append (wxID_ABOUT, _("About"));
 614 #endif
 615                 help->Append (ID_help_report_a_problem, _("Report a problem..."));
 616
 617                 m->Append (_file_menu, _("&File"));
 618 #ifndef __WXOSX__
 619                 m->Append (edit, _("&Edit"));
 620 #endif
 621                 m->Append (view, _("&View"));
 622                 m->Append (tools, _("&Tools"));
 623                 m->Append (help, _("&Help"));
 624         }
 625
 626         void file_open ()
 627         {
 628                 auto d = wxStandardPaths::Get().GetDocumentsDir();
 629                 if (Config::instance()->last_player_load_directory()) {
 630                         d = std_to_wx (Config::instance()->last_player_load_directory()->string());
 631                 }
 632
 633                 auto c = make_wx<wxDirDialog>(this, _("Select DCP to open"), d, wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST);
 634
 635                 int r;
 636                 while (true) {
 637                         r = c->ShowModal ();
 638                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
 639                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
 640                         } else {
 641                                 break;
 642                         }
 643                 }
 644
 645                 if (r == wxID_OK) {
 646                         boost::filesystem::path const dcp (wx_to_std (c->GetPath ()));
 647                         load_dcp (dcp);
 648                         Config::instance()->set_last_player_load_directory (dcp.parent_path());
 649                 }
 650         }
 651
 652         void file_add_ov ()
 653         {
 654                 auto initial_dir = wxStandardPaths::Get().GetDocumentsDir();
 655                 if (Config::instance()->last_player_load_directory()) {
 656                         initial_dir = std_to_wx(Config::instance()->last_player_load_directory()->string());
 657                 }
 658
 659                 auto c = make_wx<wxDirDialog>(
 660                         this,
 661                         _("Select DCP to open as OV"),
 662                         initial_dir,
 663                         wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST
 664                         );
 665
 666                 int r;
 667                 while (true) {
 668                         r = c->ShowModal ();
 669                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
 670                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
 671                         } else {
 672                                 break;
 673                         }
 674                 }
 675
 676                 if (r == wxID_OK) {
 677                         DCPOMATIC_ASSERT (_film);
 678                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 679                         DCPOMATIC_ASSERT (dcp);
 680                         dcp->add_ov (wx_to_std(c->GetPath()));
 681                         JobManager::instance()->add(make_shared<ExamineContentJob>(_film, dcp));
 682                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
 683                         if (!ok || !report_errors_from_last_job(this)) {
 684                                 return;
 685                         }
 686                         for (auto i: dcp->text) {
 687                                 i->set_use (true);
 688                         }
 689                         if (dcp->video) {
 690                                 auto const r = Ratio::nearest_from_ratio(dcp->video->size().ratio());
 691                                 if (r) {
 692                                         _film->set_container(r);
 693                                 }
 694                         }
 695                 }
 696
 697                 _info->triggered_update ();
 698         }
 699
 700         void file_add_kdm ()
 701         {
 702                 FileDialog dialog(this, _("Select KDM"), wxT("XML files|*.xml|All files|*.*"), wxFD_MULTIPLE, "AddKDMPath");
 703
 704                 if (dialog.show()) {
 705                         DCPOMATIC_ASSERT (_film);
 706                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 707                         DCPOMATIC_ASSERT (dcp);
 708                         try {
 709                                 if (dcp) {
 710                                         ScopeGuard sg([this]() {
 711                                                 _viewer.set_coalesce_player_changes(false);
 712                                         });
 713                                         _viewer.set_coalesce_player_changes(true);
 714                                         for (auto path: dialog.paths()) {
 715                                                 dcp->add_kdm(dcp::EncryptedKDM(dcp::file_to_string(path)));
 716                                         }
 717                                         examine_content();
 718                                 }
 719                         } catch (exception& e) {
 720                                 error_dialog (this, wxString::Format (_("Could not load KDM.")), std_to_wx(e.what()));
 721                                 return;
 722                         }
 723                 }
 724
 725                 _info->triggered_update ();
 726         }
 727
 728         void file_save_frame ()
 729         {
 730                 wxFileDialog dialog (this, _("Save frame to file"), "", "", "PNG files (*.png)|*.png|JPEG files (*.jpg;*.jpeg)|*.jpg;*.jpeg", wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
 731                 if (dialog.ShowModal() == wxID_CANCEL) {
 732                         return;
 733                 }
 734
 735                 auto path = boost::filesystem::path (wx_to_std(dialog.GetPath()));
 736
 737                 auto player = make_shared<Player>(_film, Image::Alignment::PADDED);
 738                 player->seek(_viewer.position(), true);
 739
 740                 bool done = false;
 741                 player->Video.connect ([path, &done, this](shared_ptr<PlayerVideo> video, DCPTime) {
 742                         auto ext = boost::algorithm::to_lower_copy(path.extension().string());
 743                         if (ext == ".png") {
 744                                 auto image = video->image(boost::bind(PlayerVideo::force, AV_PIX_FMT_RGBA), VideoRange::FULL, false);
 745                                 image_as_png(image).write(path);
 746                         } else if (ext == ".jpg" || ext == ".jpeg") {
 747                                 auto image = video->image(boost::bind(PlayerVideo::force, AV_PIX_FMT_RGB24), VideoRange::FULL, false);
 748                                 image_as_jpeg(image, 80).write(path);
 749                         } else {
 750                                 error_dialog (this, _(wxString::Format("Unrecognised file extension %s (use .jpg, .jpeg or .png)", std_to_wx(ext))));
 751                         }
 752                         done = true;
 753                 });
 754
 755                 int tries_left = 50;
 756                 while (!done && tries_left >= 0) {
 757                         player->pass();
 758                         --tries_left;
 759                 }
 760
 761                 DCPOMATIC_ASSERT (tries_left >= 0);
 762         }
 763
 764         void file_history (wxCommandEvent& event)
 765         {
 766                 auto history = Config::instance()->player_history ();
 767                 int n = event.GetId() - ID_file_history;
 768                 if (n >= 0 && n < static_cast<int> (history.size ())) {
 769                         try {
 770                                 load_dcp (history[n]);
 771                         } catch (exception& e) {
 772                                 error_dialog (0, std_to_wx(String::compose(wx_to_std(_("Could not load DCP %1.")), history[n])), std_to_wx(e.what()));
 773                         }
 774                 }
 775         }
 776
 777         void file_close ()
 778         {
 779                 reset_film ();
 780                 _info->triggered_update ();
 781                 set_menu_sensitivity ();
 782         }
 783
 784         void file_exit ()
 785         {
 786                 Close ();
 787         }
 788
 789         void edit_preferences ()
 790         {
 791                 if (!Config::instance()->have_write_permission()) {
 792                         return;
 793                 }
 794
 795                 if (!_config_dialog) {
 796                         _config_dialog = create_player_config_dialog ();
 797                 }
 798                 _config_dialog->Show (this);
 799         }
 800
 801         void view_cpl (wxCommandEvent& ev)
 802         {
 803                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 804                 DCPOMATIC_ASSERT (dcp);
 805                 auto cpls = dcp::find_and_resolve_cpls (dcp->directories(), true);
 806                 int id = ev.GetId() - ID_view_cpl;
 807                 DCPOMATIC_ASSERT (id >= 0);
 808                 DCPOMATIC_ASSERT (id < int(cpls.size()));
 809                 auto i = cpls.begin();
 810                 while (id > 0) {
 811                         ++i;
 812                         --id;
 813                 }
 814
 815                 _viewer.set_coalesce_player_changes(true);
 816                 dcp->set_cpl ((*i)->id());
 817                 examine_content ();
 818                 _viewer.set_coalesce_player_changes(false);
 819
 820                 _info->triggered_update ();
 821         }
 822
 823         void view_full_screen ()
 824         {
 825                 if (_mode == Config::PLAYER_MODE_FULL) {
 826                         _mode = Config::PLAYER_MODE_WINDOW;
 827                 } else {
 828                         _mode = Config::PLAYER_MODE_FULL;
 829                 }
 830                 setup_screen ();
 831                 setup_menu ();
 832         }
 833
 834         void view_dual_screen ()
 835         {
 836                 if (_mode == Config::PLAYER_MODE_DUAL) {
 837                         _mode = Config::PLAYER_MODE_WINDOW;
 838                 } else {
 839                         _mode = Config::PLAYER_MODE_DUAL;
 840                 }
 841                 setup_screen ();
 842                 setup_menu ();
 843         }
 844
 845         void setup_menu ()
 846         {
 847                 if (_view_full_screen) {
 848                         _view_full_screen->Check (_mode == Config::PLAYER_MODE_FULL);
 849                 }
 850                 if (_view_dual_screen) {
 851                         _view_dual_screen->Check (_mode == Config::PLAYER_MODE_DUAL);
 852                 }
 853         }
 854
 855         void setup_screen ()
 856         {
 857                 _controls->Show (_mode != Config::PLAYER_MODE_FULL);
 858                 _info->Show (_mode != Config::PLAYER_MODE_FULL);
 859                 _overall_panel->SetBackgroundColour (_mode == Config::PLAYER_MODE_FULL ? wxColour(0, 0, 0) : wxNullColour);
 860                 ShowFullScreen (_mode == Config::PLAYER_MODE_FULL);
 861                 _viewer.set_pad_black(_mode != Config::PLAYER_MODE_WINDOW);
 862
 863                 if (_mode == Config::PLAYER_MODE_DUAL) {
 864                         _dual_screen = new wxFrame (this, wxID_ANY, wxT(""));
 865                         _dual_screen->SetBackgroundColour (wxColour(0, 0, 0));
 866                         _dual_screen->ShowFullScreen (true);
 867                         _viewer.panel()->Reparent(_dual_screen);
 868                         _viewer.panel()->SetFocus();
 869                         _dual_screen->Show ();
 870                         if (wxDisplay::GetCount() > 1) {
 871                                 switch (Config::instance()->image_display()) {
 872                                 case 0:
 873                                         _dual_screen->Move (0, 0);
 874                                         Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
 875                                         break;
 876                                 case 1:
 877                                         _dual_screen->Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
 878                                         // (0, 0) doesn't seem to work for some strange reason
 879                                         Move (8, 8);
 880                                         break;
 881                                 }
 882                         }
 883                         _dual_screen->Bind(wxEVT_CHAR_HOOK, boost::bind(&DOMFrame::dual_screen_key_press, this, _1));
 884                 } else {
 885                         if (_dual_screen) {
 886                                 _viewer.panel()->Reparent(_overall_panel);
 887                                 _dual_screen->Destroy ();
 888                                 _dual_screen = 0;
 889                         }
 890                 }
 891
 892                 setup_main_sizer (_mode);
 893         }
 894
 895         void dual_screen_key_press(wxKeyEvent& ev)
 896         {
 897                 if (ev.GetKeyCode() == WXK_F11) {
 898                         if (ev.ShiftDown()) {
 899                                 view_dual_screen();
 900                         } else if (!ev.HasAnyModifiers()) {
 901                                 view_full_screen();
 902                         }
 903                 }
 904         }
 905
 906         void view_closed_captions ()
 907         {
 908                 _viewer.show_closed_captions();
 909         }
 910
 911         void tools_verify ()
 912         {
 913                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 914                 DCPOMATIC_ASSERT (dcp);
 915
 916                 auto job = make_shared<VerifyDCPJob>(dcp->directories());
 917                 VerifyDCPProgressDialog progress(this, _("DCP-o-matic Player"));
 918                 bool const completed = progress.run(job);
 919                 progress.Close();
 920
 921                 if (completed) {
 922                         VerifyDCPDialog dialog(this, job);
 923                         dialog.ShowModal();
 924                 }
 925         }
 926
 927         void tools_check_for_updates ()
 928         {
 929                 UpdateChecker::instance()->run ();
 930                 _update_news_requested = true;
 931         }
 932
 933         void tools_timing ()
 934         {
 935                 auto d = make_wx<TimerDisplay>(this, _viewer.state_timer(), _viewer.gets());
 936                 d->ShowModal ();
 937         }
 938
 939         void tools_system_information ()
 940         {
 941                 if (!_system_information_dialog) {
 942                         _system_information_dialog = new SystemInformationDialog (this, _viewer);
 943                 }
 944
 945                 _system_information_dialog->Show ();
 946         }
 947
 948         void help_about ()
 949         {
 950                 auto d = make_wx<AboutDialog>(this);
 951                 d->ShowModal ();
 952         }
 953
 954         void help_report_a_problem ()
 955         {
 956                 auto d = make_wx<ReportProblemDialog>(this);
 957                 if (d->ShowModal () == wxID_OK) {
 958                         d->report ();
 959                 }
 960         }
 961
 962         void update_checker_state_changed ()
 963         {
 964                 auto uc = UpdateChecker::instance ();
 965
 966                 bool const announce =
 967                         _update_news_requested ||
 968                         (uc->stable() && Config::instance()->check_for_updates()) ||
 969                         (uc->test() && Config::instance()->check_for_updates() && Config::instance()->check_for_test_updates());
 970
 971                 _update_news_requested = false;
 972
 973                 if (!announce) {
 974                         return;
 975                 }
 976
 977                 if (uc->state() == UpdateChecker::State::YES) {
 978                         auto dialog = make_wx<UpdateDialog>(this, uc->stable (), uc->test ());
 979                         dialog->ShowModal ();
 980                 } else if (uc->state() == UpdateChecker::State::FAILED) {
 981                         error_dialog (this, _("The DCP-o-matic download server could not be contacted."));
 982                 } else {
 983                         error_dialog (this, _("There are no new versions of DCP-o-matic available."));
 984                 }
 985
 986                 _update_news_requested = false;
 987         }
 988
 989         void config_changed (Config::Property prop)
 990         {
 991                 /* Instantly save any config changes when using the player GUI */
 992                 try {
 993                         Config::instance()->write_config();
 994                 } catch (FileError& e) {
 995                         if (prop != Config::HISTORY) {
 996                                 error_dialog (
 997                                         this,
 998                                         wxString::Format(
 999                                                 _("Could not write to config file at %s.  Your changes have not been saved."),
1000                                                 std_to_wx(e.file().string())
1001                                                 )
1002                                         );
1003                         }
1004                 } catch (exception& e) {
1005                         error_dialog (
1006                                 this,
1007                                 _("Could not write to config file.  Your changes have not been saved.")
1008                                 );
1009                 }
1010
1011                 update_from_config (prop);
1012         }
1013
1014         void update_from_config (Config::Property prop)
1015         {
1016                 for (int i = 0; i < _history_items; ++i) {
1017                         delete _file_menu->Remove (ID_file_history + i);
1018                 }
1019
1020                 if (_history_separator) {
1021                         _file_menu->Remove (_history_separator);
1022                 }
1023                 delete _history_separator;
1024                 _history_separator = nullptr;
1025
1026                 int pos = _history_position;
1027
1028                 /* Clear out non-existent history items before we re-build the menu */
1029                 Config::instance()->clean_player_history ();
1030                 auto history = Config::instance()->player_history ();
1031
1032                 if (!history.empty ()) {
1033                         _history_separator = _file_menu->InsertSeparator (pos++);
1034                 }
1035
1036                 for (size_t i = 0; i < history.size(); ++i) {
1037                         string s;
1038                         if (i < 9) {
1039                                 s = String::compose ("&%1 %2", i + 1, history[i].string());
1040                         } else {
1041                                 s = history[i].string();
1042                         }
1043                         _file_menu->Insert (pos++, ID_file_history + i, std_to_wx (s));
1044                 }
1045
1046                 _history_items = history.size ();
1047
1048                 if (prop == Config::PLAYER_DEBUG_LOG) {
1049                         auto p = Config::instance()->player_debug_log_file();
1050                         if (p) {
1051                                 dcpomatic_log = make_shared<FileLog>(*p);
1052                         } else {
1053                                 dcpomatic_log = make_shared<NullLog>();
1054                         }
1055                         dcpomatic_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR | LogEntry::TYPE_DEBUG_VIDEO_VIEW);
1056                 }
1057         }
1058
1059         void set_menu_sensitivity ()
1060         {
1061                 _tools_verify->Enable (static_cast<bool>(_film));
1062                 _file_add_ov->Enable (static_cast<bool>(_film));
1063                 _file_add_kdm->Enable (static_cast<bool>(_film));
1064                 _file_save_frame->Enable (static_cast<bool>(_film));
1065                 _view_cpl->Enable (static_cast<bool>(_film));
1066         }
1067
1068         void start_stop_pressed ()
1069         {
1070                 if (_viewer.playing()) {
1071                         _viewer.stop();
1072                 } else {
1073                         _viewer.start();
1074                 }
1075         }
1076
1077         void go_back_frame ()
1078         {
1079                 _viewer.seek_by(-_viewer.one_video_frame(), true);
1080         }
1081
1082         void go_forward_frame ()
1083         {
1084                 _viewer.seek_by(_viewer.one_video_frame(), true);
1085         }
1086
1087         void go_seconds (int s)
1088         {
1089                 _viewer.seek_by(DCPTime::from_seconds(s), true);
1090         }
1091
1092         void go_to_start ()
1093         {
1094                 _viewer.seek(DCPTime(), true);
1095         }
1096
1097         void go_to_end ()
1098         {
1099                 _viewer.seek(_film->length() - _viewer.one_video_frame(), true);
1100         }
1101
1102         wxFrame* _dual_screen = nullptr;
1103         bool _update_news_requested = false;
1104         PlayerInformation* _info = nullptr;
1105         Config::PlayerMode _mode;
1106         wxPreferencesEditor* _config_dialog = nullptr;
1107         wxPanel* _overall_panel = nullptr;
1108         wxMenu* _file_menu = nullptr;
1109         wxMenuItem* _view_cpl = nullptr;
1110         wxMenu* _cpl_menu = nullptr;
1111         int _history_items = 0;
1112         int _history_position = 0;
1113         wxMenuItem* _history_separator = nullptr;
1114         FilmViewer _viewer;
1115         Controls* _controls;
1116         SystemInformationDialog* _system_information_dialog = nullptr;
1117         std::shared_ptr<Film> _film;
1118         boost::signals2::scoped_connection _config_changed_connection;
1119         boost::signals2::scoped_connection _examine_job_connection;
1120         wxMenuItem* _file_add_ov = nullptr;
1121         wxMenuItem* _file_add_kdm = nullptr;
1122         wxMenuItem* _file_save_frame = nullptr;
1123         wxMenuItem* _tools_verify = nullptr;
1124         wxMenuItem* _view_full_screen = nullptr;
1125         wxMenuItem* _view_dual_screen = nullptr;
1126         wxSizer* _main_sizer = nullptr;
1127         PlayerStressTester _stress;
1128 };
1129
1130 static const wxCmdLineEntryDesc command_line_description[] = {
1131         { wxCMD_LINE_PARAM, 0, 0, "DCP to load or create", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1132         { wxCMD_LINE_OPTION, "c", "config", "Directory containing config.xml", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1133         { wxCMD_LINE_OPTION, "s", "stress", "File containing description of stress test", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1134         { wxCMD_LINE_NONE, "", "", "", wxCmdLineParamType (0), 0 }
1135 };
1136
1137 class PlayServer : public Server
1138 {
1139 public:
1140         explicit PlayServer (DOMFrame* frame)
1141                 : Server (PLAYER_PLAY_PORT)
1142                 , _frame (frame)
1143         {}
1144
1145         void handle (shared_ptr<Socket> socket) override
1146         {
1147                 try {
1148                         uint32_t const length = socket->read_uint32 ();
1149                         if (length > 65536) {
1150                                 return;
1151                         }
1152                         scoped_array<char> buffer (new char[length]);
1153                         socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
1154                         string s (buffer.get());
1155                         signal_manager->when_idle (bind (&DOMFrame::load_dcp, _frame, s));
1156                         socket->write (reinterpret_cast<uint8_t const *> ("OK"), 3);
1157                 } catch (...) {
1158
1159                 }
1160         }
1161
1162 private:
1163         DOMFrame* _frame;
1164 };
1165
1166 /** @class App
1167  *  @brief The magic App class for wxWidgets.
1168  */
1169 class App : public wxApp
1170 {
1171 public:
1172         App ()
1173                 : wxApp ()
1174         {
1175 #ifdef DCPOMATIC_LINUX
1176                 XInitThreads ();
1177 #endif
1178         }
1179
1180 private:
1181
1182         bool OnInit () override
1183         {
1184                 wxSplashScreen* splash;
1185                 try {
1186                         wxInitAllImageHandlers ();
1187
1188                         Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
1189                         Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
1190
1191                         splash = maybe_show_splash ();
1192
1193                         SetAppName (_("DCP-o-matic Player"));
1194
1195                         if (!wxApp::OnInit()) {
1196                                 return false;
1197                         }
1198
1199 #ifdef DCPOMATIC_LINUX
1200                         unsetenv ("UBUNTU_MENUPROXY");
1201 #endif
1202
1203 #ifdef DCPOMATIC_OSX
1204                         make_foreground_application ();
1205 #endif
1206
1207                         dcpomatic_setup_path_encoding ();
1208
1209                         /* Enable i18n; this will create a Config object
1210                            to look for a force-configured language.  This Config
1211                            object will be wrong, however, because dcpomatic_setup
1212                            hasn't yet been called and there aren't any filters etc.
1213                            set up yet.
1214                         */
1215                         dcpomatic_setup_i18n ();
1216
1217                         /* Set things up, including filters etc.
1218                            which will now be internationalised correctly.
1219                         */
1220                         dcpomatic_setup ();
1221
1222                         /* Force the configuration to be re-loaded correctly next
1223                            time it is needed.
1224                         */
1225                         Config::drop ();
1226
1227                         signal_manager = new wxSignalManager (this);
1228
1229                         _frame = new DOMFrame ();
1230                         SetTopWindow (_frame);
1231                         _frame->Maximize ();
1232                         if (splash) {
1233                                 splash->Destroy ();
1234                                 splash = nullptr;
1235                         }
1236                         _frame->Show ();
1237
1238                         try {
1239                                 auto server = new PlayServer (_frame);
1240                                 new thread (boost::bind (&PlayServer::run, server));
1241                         } catch (std::exception& e) {
1242                                 /* This is not the end of the world; probably a failure to bind the server socket
1243                                  * because there's already another player running.
1244                                  */
1245                                 LOG_DEBUG_PLAYER ("Failed to start play server (%1)", e.what());
1246                         }
1247
1248                         if (!_dcp_to_load.empty() && dcp::filesystem::is_directory(_dcp_to_load)) {
1249                                 try {
1250                                         _frame->load_dcp (_dcp_to_load);
1251                                 } catch (exception& e) {
1252                                         error_dialog (0, std_to_wx (String::compose (wx_to_std (_("Could not load DCP %1.")), _dcp_to_load)), std_to_wx(e.what()));
1253                                 }
1254                         }
1255
1256                         if (_stress) {
1257                                 try {
1258                                         _frame->load_stress_script (*_stress);
1259                                 } catch (exception& e) {
1260                                         error_dialog (0, wxString::Format("Could not load stress test file %s", std_to_wx(*_stress)));
1261                                 }
1262                         }
1263
1264                         Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
1265
1266                         if (Config::instance()->check_for_updates ()) {
1267                                 UpdateChecker::instance()->run ();
1268                         }
1269                 }
1270                 catch (exception& e)
1271                 {
1272                         if (splash) {
1273                                 splash->Destroy ();
1274                         }
1275                         error_dialog (0, _("DCP-o-matic Player could not start."), std_to_wx(e.what()));
1276                 }
1277
1278                 return true;
1279         }
1280
1281         void OnInitCmdLine (wxCmdLineParser& parser) override
1282         {
1283                 parser.SetDesc (command_line_description);
1284                 parser.SetSwitchChars (wxT ("-"));
1285         }
1286
1287         bool OnCmdLineParsed (wxCmdLineParser& parser) override
1288         {
1289                 if (parser.GetParamCount() > 0) {
1290                         _dcp_to_load = wx_to_std (parser.GetParam (0));
1291                 }
1292
1293                 wxString config;
1294                 if (parser.Found("c", &config)) {
1295                         Config::override_path = wx_to_std (config);
1296                 }
1297                 wxString stress;
1298                 if (parser.Found("s", &stress)) {
1299                         _stress = wx_to_std (stress);
1300                 }
1301
1302                 return true;
1303         }
1304
1305         void report_exception ()
1306         {
1307                 try {
1308                         throw;
1309                 } catch (FileError& e) {
1310                         error_dialog (
1311                                 0,
1312                                 wxString::Format (
1313                                         _("An exception occurred: %s (%s)\n\n") + REPORT_PROBLEM,
1314                                         std_to_wx (e.what()),
1315                                         std_to_wx (e.file().string().c_str ())
1316                                         )
1317                                 );
1318                 } catch (exception& e) {
1319                         error_dialog (
1320                                 0,
1321                                 wxString::Format (
1322                                         _("An exception occurred: %s.\n\n") + REPORT_PROBLEM,
1323                                         std_to_wx (e.what ())
1324                                         )
1325                                 );
1326                 } catch (...) {
1327                         error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
1328                 }
1329         }
1330
1331         /* An unhandled exception has occurred inside the main event loop */
1332         bool OnExceptionInMainLoop () override
1333         {
1334                 report_exception ();
1335                 /* This will terminate the program */
1336                 return false;
1337         }
1338
1339         void OnUnhandledException () override
1340         {
1341                 report_exception ();
1342         }
1343
1344         void idle ()
1345         {
1346                 signal_manager->ui_idle ();
1347         }
1348
1349         void config_failed_to_load ()
1350         {
1351                 message_dialog (_frame, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
1352         }
1353
1354         void config_warning (string m)
1355         {
1356                 message_dialog (_frame, std_to_wx (m));
1357         }
1358
1359         DOMFrame* _frame = nullptr;
1360         string _dcp_to_load;
1361         boost::optional<string> _stress;
1362 };
1363
1364 IMPLEMENT_APP (App)