ace7fd7933ee66479c47ab9c62a3716b06ab0b1c
[dcpomatic.git] / 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/film_viewer.h"
23 #include "wx/nag_dialog.h"
24 #include "wx/player_config_dialog.h"
25 #include "wx/player_information.h"
26 #include "wx/player_stress_tester.h"
27 #include "wx/playlist_controls.h"
28 #include "wx/report_problem_dialog.h"
29 #include "wx/standard_controls.h"
30 #include "wx/system_information_dialog.h"
31 #include "wx/timer_display.h"
32 #include "wx/update_dialog.h"
33 #include "wx/verify_dcp_dialog.h"
34 #include "wx/verify_dcp_progress_dialog.h"
35 #include "wx/wx_signal_manager.h"
36 #include "wx/wx_util.h"
37 #include "lib/compose.hpp"
38 #include "lib/config.h"
39 #include "lib/cross.h"
40 #include "lib/dcp_content.h"
41 #include "lib/dcp_examiner.h"
42 #include "lib/dcpomatic_log.h"
43 #include "lib/dcpomatic_socket.h"
44 #include "lib/examine_content_job.h"
45 #include "lib/ffmpeg_content.h"
46 #include "lib/file_log.h"
47 #include "lib/film.h"
48 #include "lib/image.h"
49 #include "lib/image_jpeg.h"
50 #include "lib/image_png.h"
51 #include "lib/internet.h"
52 #include "lib/job.h"
53 #include "lib/job_manager.h"
54 #include "lib/null_log.h"
55 #include "lib/player.h"
56 #include "lib/player_video.h"
57 #include "lib/ratio.h"
58 #include "lib/scoped_temporary.h"
59 #include "lib/server.h"
60 #include "lib/text_content.h"
61 #include "lib/update_checker.h"
62 #include "lib/util.h"
63 #include "lib/verify_dcp_job.h"
64 #include "lib/video_content.h"
65 #include <dcp/cpl.h>
66 #include <dcp/dcp.h>
67 #include <dcp/exceptions.h>
68 #include <dcp/raw_convert.h>
69 #include <dcp/search.h>
70 #include <dcp/warnings.h>
71 LIBDCP_DISABLE_WARNINGS
72 #include <wx/cmdline.h>
73 #include <wx/display.h>
74 #include <wx/dnd.h>
75 #include <wx/preferences.h>
76 #include <wx/progdlg.h>
77 #include <wx/splash.h>
78 #include <wx/stdpaths.h>
79 #include <wx/wx.h>
80 LIBDCP_ENABLE_WARNINGS
81 #ifdef __WXGTK__
82 #include <X11/Xlib.h>
83 #endif
84 #include <boost/algorithm/string.hpp>
85 #include <boost/bind/bind.hpp>
86 #include <iostream>
87
88 #ifdef check
89 #undef check
90 #endif
91
92
93 #define MAX_CPLS 32
94
95
96 using std::cout;
97 using std::dynamic_pointer_cast;
98 using std::exception;
99 using std::list;
100 using std::make_shared;
101 using std::shared_ptr;
102 using std::string;
103 using std::vector;
104 using std::weak_ptr;
105 using boost::bind;
106 using boost::optional;
107 using boost::scoped_array;
108 using boost::thread;
109 #if BOOST_VERSION >= 106100
110 using namespace boost::placeholders;
111 #endif
112 using dcp::raw_convert;
113 using namespace dcpomatic;
114
115
116 enum {
117         ID_file_open = 1,
118         ID_file_add_ov,
119         ID_file_add_kdm,
120         ID_file_save_frame,
121         ID_file_history,
122         /* Allow spare IDs after _history for the recent files list */
123         ID_file_close = 100,
124         ID_view_cpl,
125         /* Allow spare IDs for CPLs */
126         ID_view_full_screen = 200,
127         ID_view_dual_screen,
128         ID_view_closed_captions,
129         ID_view_scale_appropriate,
130         ID_view_scale_full,
131         ID_view_scale_half,
132         ID_view_scale_quarter,
133         ID_help_report_a_problem,
134         ID_tools_verify,
135         ID_tools_check_for_updates,
136         ID_tools_timing,
137         ID_tools_system_information,
138         /* IDs for shortcuts (with no associated menu item) */
139         ID_start_stop,
140         ID_go_back_frame,
141         ID_go_forward_frame,
142         ID_go_back_small_amount,
143         ID_go_forward_small_amount,
144         ID_go_back_medium_amount,
145         ID_go_forward_medium_amount,
146         ID_go_back_large_amount,
147         ID_go_forward_large_amount,
148         ID_go_to_start,
149         ID_go_to_end
150 };
151
152
153 class DOMFrame : public wxFrame
154 {
155 public:
156
157         class DCPDropTarget : public wxFileDropTarget
158         {
159         public:
160                 DCPDropTarget(DOMFrame* owner)
161                         : _frame(owner)
162                 {}
163
164                 bool OnDropFiles(wxCoord, wxCoord, wxArrayString const& filenames) override
165                 {
166                         if (filenames.GetCount() == 1) {
167                                 /* Try to load a directory */
168                                 auto path = boost::filesystem::path(wx_to_std(filenames[0]));
169                                 if (boost::filesystem::is_directory(path)) {
170                                         _frame->load_dcp(wx_to_std(filenames[0]));
171                                         return true;
172                                 }
173                         }
174
175                         if (filenames.GetCount() >= 1) {
176                                 /* Try to load the parent if we drop some files, one if which is an asset map */
177                                 for (size_t i = 0; i < filenames.GetCount(); ++i) {
178                                         auto path = boost::filesystem::path(wx_to_std(filenames[i]));
179                                         if (path.filename() == "ASSETMAP" || path.filename() == "ASSETMAP.xml") {
180                                                 _frame->load_dcp(path.parent_path());
181                                                 return true;
182                                         }
183                                 }
184                         }
185
186                         return false;
187                 }
188
189         private:
190                 DOMFrame* _frame;
191         };
192
193
194         DOMFrame ()
195                 : wxFrame (nullptr, -1, _("DCP-o-matic Player"))
196                 , _mode (Config::instance()->player_mode())
197                 /* Use a panel as the only child of the Frame so that we avoid
198                    the dark-grey background on Windows.
199                 */
200                 , _overall_panel(new wxPanel(this, wxID_ANY))
201                 , _viewer(_overall_panel)
202                 , _main_sizer (new wxBoxSizer(wxVERTICAL))
203         {
204                 dcpomatic_log = make_shared<NullLog>();
205
206 #if defined(DCPOMATIC_WINDOWS)
207                 maybe_open_console ();
208                 cout << "DCP-o-matic Player is starting." << "\n";
209 #endif
210
211                 auto bar = new wxMenuBar;
212                 setup_menu (bar);
213                 set_menu_sensitivity ();
214                 SetMenuBar (bar);
215
216 #ifdef DCPOMATIC_WINDOWS
217                 SetIcon (wxIcon (std_to_wx ("id")));
218 #endif
219
220                 _config_changed_connection = Config::instance()->Changed.connect (boost::bind (&DOMFrame::config_changed, this, _1));
221                 update_from_config (Config::PLAYER_DEBUG_LOG);
222
223                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_open, this), ID_file_open);
224                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_ov, this), ID_file_add_ov);
225                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_kdm, this), ID_file_add_kdm);
226                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_save_frame, this), ID_file_save_frame);
227                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_history, this, _1), ID_file_history, ID_file_history + HISTORY_SIZE);
228                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_close, this), ID_file_close);
229                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_exit, this), wxID_EXIT);
230                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::edit_preferences, this), wxID_PREFERENCES);
231                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_full_screen, this), ID_view_full_screen);
232                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_dual_screen, this), ID_view_dual_screen);
233                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_closed_captions, this), ID_view_closed_captions);
234                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_cpl, this, _1), ID_view_cpl, ID_view_cpl + MAX_CPLS);
235                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(0)), ID_view_scale_full);
236                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(1)), ID_view_scale_half);
237                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(2)), ID_view_scale_quarter);
238                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_about, this), wxID_ABOUT);
239                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_report_a_problem, this), ID_help_report_a_problem);
240                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_verify, this), ID_tools_verify);
241                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_check_for_updates, this), ID_tools_check_for_updates);
242                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_timing, this), ID_tools_timing);
243                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_system_information, this), ID_tools_system_information);
244
245                 if (Config::instance()->player_mode() == Config::PLAYER_MODE_DUAL) {
246                         auto pc = new PlaylistControls (_overall_panel, _viewer);
247                         _controls = pc;
248                         pc->ResetFilm.connect (bind(&DOMFrame::reset_film_weak, this, _1));
249                 } else {
250                         _controls = new StandardControls (_overall_panel, _viewer, false);
251                 }
252                 _viewer.set_dcp_decode_reduction(Config::instance()->decode_reduction());
253                 _viewer.set_optimise_for_j2k(true);
254                 _viewer.PlaybackPermitted.connect(bind(&DOMFrame::playback_permitted, this));
255                 _viewer.TooManyDropped.connect(bind(&DOMFrame::too_many_frames_dropped, this));
256                 _info = new PlayerInformation (_overall_panel, _viewer);
257                 setup_main_sizer (Config::instance()->player_mode());
258 #ifdef __WXOSX__
259                 int accelerators = 12;
260 #else
261                 int accelerators = 11;
262 #endif
263
264                 _stress.setup (this, _controls);
265
266                 std::vector<wxAcceleratorEntry> accel(accelerators);
267                 accel[0].Set(wxACCEL_NORMAL,                WXK_SPACE, ID_start_stop);
268                 accel[1].Set(wxACCEL_NORMAL,                WXK_LEFT,  ID_go_back_frame);
269                 accel[2].Set(wxACCEL_NORMAL,                WXK_RIGHT, ID_go_forward_frame);
270                 accel[3].Set(wxACCEL_SHIFT,                 WXK_LEFT,  ID_go_back_small_amount);
271                 accel[4].Set(wxACCEL_SHIFT,                 WXK_RIGHT, ID_go_forward_small_amount);
272                 accel[5].Set(wxACCEL_CTRL,                  WXK_LEFT,  ID_go_back_medium_amount);
273                 accel[6].Set(wxACCEL_CTRL,                  WXK_RIGHT, ID_go_forward_medium_amount);
274                 accel[7].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_LEFT,  ID_go_back_large_amount);
275                 accel[8].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_RIGHT, ID_go_forward_large_amount);
276                 accel[9].Set(wxACCEL_NORMAL,                WXK_HOME,  ID_go_to_start);
277                 accel[10].Set(wxACCEL_NORMAL,               WXK_END,   ID_go_to_end);
278 #ifdef __WXOSX__
279                 accel[11].Set(wxACCEL_CTRL, static_cast<int>('W'), ID_file_close);
280 #endif
281                 wxAcceleratorTable accel_table (accelerators, accel.data());
282                 SetAcceleratorTable (accel_table);
283
284                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::start_stop_pressed, this), ID_start_stop);
285                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_back_frame, this),      ID_go_back_frame);
286                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_forward_frame, this),   ID_go_forward_frame);
287                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   -60), ID_go_back_small_amount);
288                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,    60), ID_go_forward_small_amount);
289                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  -600), ID_go_back_medium_amount);
290                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   600), ID_go_forward_medium_amount);
291                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this, -3600), ID_go_back_large_amount);
292                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  3600), ID_go_forward_large_amount);
293                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_start, this), ID_go_to_start);
294                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_end,   this), ID_go_to_end);
295
296                 reset_film ();
297
298                 UpdateChecker::instance()->StateChanged.connect (boost::bind(&DOMFrame::update_checker_state_changed, this));
299                 setup_screen ();
300
301                 _stress.LoadDCP.connect (boost::bind(&DOMFrame::load_dcp, this, _1));
302
303                 SetDropTarget(new DCPDropTarget(this));
304         }
305
306         ~DOMFrame ()
307         {
308                 /* It's important that this is stopped before our frame starts destroying its children,
309                  * otherwise UI elements that it depends on will disappear from under it.
310                  */
311                 _viewer.stop();
312         }
313
314         void setup_main_sizer (Config::PlayerMode mode)
315         {
316                 _main_sizer->Detach(_viewer.panel());
317                 _main_sizer->Detach (_controls);
318                 _main_sizer->Detach (_info);
319                 if (mode != Config::PLAYER_MODE_DUAL) {
320                         _main_sizer->Add(_viewer.panel(), 1, wxEXPAND);
321                 }
322                 _main_sizer->Add (_controls, mode == Config::PLAYER_MODE_DUAL ? 1 : 0, wxEXPAND | wxALL, 6);
323                 _main_sizer->Add (_info, 0, wxEXPAND | wxALL, 6);
324                 _overall_panel->SetSizer (_main_sizer);
325                 _overall_panel->Layout ();
326         }
327
328         bool playback_permitted ()
329         {
330                 if (!_film || !Config::instance()->respect_kdm_validity_periods()) {
331                         return true;
332                 }
333
334                 bool ok = true;
335                 for (auto i: _film->content()) {
336                         auto d = dynamic_pointer_cast<DCPContent>(i);
337                         if (d && !d->kdm_timing_window_valid()) {
338                                 ok = false;
339                         }
340                 }
341
342                 if (!ok) {
343                         error_dialog (this, _("The KDM does not allow playback of this content at this time."));
344                 }
345
346                 return ok;
347         }
348
349
350         void too_many_frames_dropped ()
351         {
352                 if (!Config::instance()->nagged(Config::NAG_TOO_MANY_DROPPED_FRAMES)) {
353                         _viewer.stop();
354                 }
355
356                 NagDialog::maybe_nag (
357                         this,
358                         Config::NAG_TOO_MANY_DROPPED_FRAMES,
359                         _(wxS("The player is dropping a lot of frames, so playback may not be accurate.\n\n"
360                           "<b>This does not necessarily mean that the DCP you are playing is defective!</b>\n\n"
361                           "You may be able to improve player performance by:\n"
362                           "• choosing 'decode at half resolution' or 'decode at quarter resolution' from the View menu\n"
363                           "• using a more powerful computer.\n"
364                          ))
365                         );
366         }
367
368         void set_decode_reduction (optional<int> reduction)
369         {
370                 _viewer.set_dcp_decode_reduction(reduction);
371                 _info->triggered_update ();
372                 Config::instance()->set_decode_reduction (reduction);
373         }
374
375         void load_dcp (boost::filesystem::path dir)
376         {
377                 DCPOMATIC_ASSERT (_film);
378
379                 reset_film ();
380                 try {
381                         _stress.set_suspended (true);
382                         auto dcp = make_shared<DCPContent>(dir);
383                         auto job = make_shared<ExamineContentJob>(_film, dcp);
384                         _examine_job_connection = job->Finished.connect(bind(&DOMFrame::add_dcp_to_film, this, weak_ptr<Job>(job), weak_ptr<Content>(dcp)));
385                         JobManager::instance()->add (job);
386                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
387                         if (!ok || !report_errors_from_last_job(this)) {
388                                 return;
389                         }
390                         Config::instance()->add_to_player_history (dir);
391                 } catch (ProjectFolderError &) {
392                         error_dialog (
393                                 this,
394                                 wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())),
395                                 _(
396                                         "This looks like a DCP-o-matic project folder, which cannot be loaded into the player.  "
397                                         "Choose the DCP folder inside the DCP-o-matic project folder if that's what you want to play."
398                                  )
399                                 );
400                 } catch (dcp::ReadError& e) {
401                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
402                 } catch (DCPError& e) {
403                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
404                 }
405         }
406
407         void add_dcp_to_film (weak_ptr<Job> weak_job, weak_ptr<Content> weak_content)
408         {
409                 auto job = weak_job.lock ();
410                 if (!job || !job->finished_ok()) {
411                         return;
412                 }
413
414                 auto content = weak_content.lock ();
415                 if (!content) {
416                         return;
417                 }
418
419                 _film->add_content (content);
420                 _stress.set_suspended (false);
421         }
422
423         void reset_film_weak (weak_ptr<Film> weak_film)
424         {
425                 auto film = weak_film.lock ();
426                 if (film) {
427                         reset_film (film);
428                 }
429         }
430
431         void reset_film (shared_ptr<Film> film = shared_ptr<Film>(new Film(optional<boost::filesystem::path>())))
432         {
433                 _film = film;
434                 _film->set_tolerant (true);
435                 _film->set_audio_channels (MAX_DCP_AUDIO_CHANNELS);
436                 _viewer.set_film(_film);
437                 _controls->set_film (_film);
438                 _film->Change.connect (bind(&DOMFrame::film_changed, this, _1, _2));
439                 _info->triggered_update ();
440         }
441
442         void film_changed (ChangeType type, Film::Property property)
443         {
444                 if (type != ChangeType::DONE || property != Film::Property::CONTENT) {
445                         return;
446                 }
447
448                 if (_viewer.playing()) {
449                         _viewer.stop();
450                 }
451
452                 /* Start off as Flat */
453                 _film->set_container (Ratio::from_id("185"));
454
455                 for (auto i: _film->content()) {
456                         auto dcp = dynamic_pointer_cast<DCPContent>(i);
457
458                         for (auto j: i->text) {
459                                 j->set_use (true);
460                         }
461
462                         if (i->video) {
463                                 auto const r = Ratio::nearest_from_ratio(i->video->size().ratio());
464                                 if (r->id() == "239") {
465                                         /* Any scope content means we use scope */
466                                         _film->set_container(r);
467                                 }
468                         }
469
470                         /* Any 3D content means we use 3D mode */
471                         if (i->video && i->video->frame_type() != VideoFrameType::TWO_D) {
472                                 _film->set_three_d (true);
473                         }
474                 }
475
476                 _viewer.seek(DCPTime(), true);
477                 _info->triggered_update ();
478
479                 set_menu_sensitivity ();
480
481                 auto old = _cpl_menu->GetMenuItems();
482                 for (auto const& i: old) {
483                         _cpl_menu->Remove (i);
484                 }
485
486                 if (_film->content().size() == 1) {
487                         /* Offer a CPL menu */
488                         auto first = dynamic_pointer_cast<DCPContent>(_film->content().front());
489                         if (first) {
490                                 int id = ID_view_cpl;
491                                 for (auto i: dcp::find_and_resolve_cpls(first->directories(), true)) {
492                                         auto j = _cpl_menu->AppendRadioItem(
493                                                 id,
494                                                 wxString::Format("%s (%s)", std_to_wx(i->annotation_text().get_value_or("")).data(), std_to_wx(i->id()).data())
495                                                 );
496                                         j->Check(!first->cpl() || i->id() == *first->cpl());
497                                         ++id;
498                                 }
499                         }
500                 }
501         }
502
503         void load_stress_script (boost::filesystem::path path)
504         {
505                 _stress.load_script (path);
506         }
507
508 private:
509
510         void examine_content ()
511         {
512                 DCPOMATIC_ASSERT (_film);
513                 auto dcp = dynamic_pointer_cast<DCPContent>(_film->content().front());
514                 DCPOMATIC_ASSERT (dcp);
515                 dcp->examine (_film, shared_ptr<Job>());
516
517                 /* Examining content re-creates the TextContent objects, so we must re-enable them */
518                 for (auto i: dcp->text) {
519                         i->set_use (true);
520                 }
521         }
522
523         bool report_errors_from_last_job (wxWindow* parent) const
524         {
525                 auto jm = JobManager::instance ();
526
527                 DCPOMATIC_ASSERT (!jm->get().empty());
528
529                 auto last = jm->get().back();
530                 if (last->finished_in_error()) {
531                         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()));
532                         return false;
533                 }
534
535                 return true;
536         }
537
538         void setup_menu (wxMenuBar* m)
539         {
540                 _file_menu = new wxMenu;
541                 _file_menu->Append (ID_file_open, _("&Open...\tCtrl-O"));
542                 _file_add_ov = _file_menu->Append (ID_file_add_ov, _("&Add OV..."));
543                 _file_add_kdm = _file_menu->Append (ID_file_add_kdm, _("Add &KDM..."));
544                 _file_menu->AppendSeparator ();
545                 _file_save_frame = _file_menu->Append (ID_file_save_frame, _("&Save frame to file...\tCtrl-S"));
546
547                 _history_position = _file_menu->GetMenuItems().GetCount();
548
549                 _file_menu->AppendSeparator ();
550                 _file_menu->Append (ID_file_close, _("&Close"));
551                 _file_menu->AppendSeparator ();
552
553 #ifdef __WXOSX__
554                 _file_menu->Append (wxID_EXIT, _("&Exit"));
555 #else
556                 _file_menu->Append (wxID_EXIT, _("&Quit"));
557 #endif
558
559 #ifdef __WXOSX__
560                 auto prefs = _file_menu->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
561 #else
562                 auto edit = new wxMenu;
563                 auto prefs = edit->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
564 #endif
565
566                 prefs->Enable (Config::instance()->have_write_permission());
567
568                 _cpl_menu = new wxMenu;
569
570                 auto view = new wxMenu;
571                 auto c = Config::instance()->decode_reduction();
572                 _view_cpl = view->Append(ID_view_cpl, _("CPL"), _cpl_menu);
573                 view->AppendSeparator();
574                 _view_full_screen = view->AppendCheckItem(ID_view_full_screen, _("Full screen\tF11"));
575                 _view_dual_screen = view->AppendCheckItem(ID_view_dual_screen, _("Dual screen\tShift+F11"));
576                 setup_menu ();
577                 view->AppendSeparator();
578                 view->Append(ID_view_closed_captions, _("Closed captions..."));
579                 view->AppendSeparator();
580                 view->AppendRadioItem(ID_view_scale_appropriate, _("Set decode resolution to match display"))->Check(!static_cast<bool>(c));
581                 view->AppendRadioItem(ID_view_scale_full, _("Decode at full resolution"))->Check(c && c.get() == 0);
582                 view->AppendRadioItem(ID_view_scale_half, _("Decode at half resolution"))->Check(c && c.get() == 1);
583                 view->AppendRadioItem(ID_view_scale_quarter, _("Decode at quarter resolution"))->Check(c && c.get() == 2);
584
585                 auto tools = new wxMenu;
586                 _tools_verify = tools->Append (ID_tools_verify, _("Verify DCP..."));
587                 tools->AppendSeparator ();
588                 tools->Append (ID_tools_check_for_updates, _("Check for updates"));
589                 tools->Append (ID_tools_timing, _("Timing..."));
590                 tools->Append (ID_tools_system_information, _("System information..."));
591
592                 auto help = new wxMenu;
593 #ifdef __WXOSX__
594                 help->Append (wxID_ABOUT, _("About DCP-o-matic"));
595 #else
596                 help->Append (wxID_ABOUT, _("About"));
597 #endif
598                 help->Append (ID_help_report_a_problem, _("Report a problem..."));
599
600                 m->Append (_file_menu, _("&File"));
601 #ifndef __WXOSX__
602                 m->Append (edit, _("&Edit"));
603 #endif
604                 m->Append (view, _("&View"));
605                 m->Append (tools, _("&Tools"));
606                 m->Append (help, _("&Help"));
607         }
608
609         void file_open ()
610         {
611                 auto d = wxStandardPaths::Get().GetDocumentsDir();
612                 if (Config::instance()->last_player_load_directory()) {
613                         d = std_to_wx (Config::instance()->last_player_load_directory()->string());
614                 }
615
616                 auto c = new wxDirDialog (this, _("Select DCP to open"), d, wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST);
617
618                 int r;
619                 while (true) {
620                         r = c->ShowModal ();
621                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
622                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
623                         } else {
624                                 break;
625                         }
626                 }
627
628                 if (r == wxID_OK) {
629                         boost::filesystem::path const dcp (wx_to_std (c->GetPath ()));
630                         load_dcp (dcp);
631                         Config::instance()->set_last_player_load_directory (dcp.parent_path());
632                 }
633
634                 c->Destroy ();
635         }
636
637         void file_add_ov ()
638         {
639                 auto c = new wxDirDialog (
640                         this,
641                         _("Select DCP to open as OV"),
642                         wxStandardPaths::Get().GetDocumentsDir(),
643                         wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST
644                         );
645
646                 int r;
647                 while (true) {
648                         r = c->ShowModal ();
649                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
650                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
651                         } else {
652                                 break;
653                         }
654                 }
655
656                 if (r == wxID_OK) {
657                         DCPOMATIC_ASSERT (_film);
658                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
659                         DCPOMATIC_ASSERT (dcp);
660                         dcp->add_ov (wx_to_std(c->GetPath()));
661                         JobManager::instance()->add(make_shared<ExamineContentJob>(_film, dcp));
662                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
663                         if (!ok || !report_errors_from_last_job(this)) {
664                                 return;
665                         }
666                         for (auto i: dcp->text) {
667                                 i->set_use (true);
668                         }
669                         if (dcp->video) {
670                                 auto const r = Ratio::nearest_from_ratio(dcp->video->size().ratio());
671                                 if (r) {
672                                         _film->set_container(r);
673                                 }
674                         }
675                 }
676
677                 c->Destroy ();
678                 _info->triggered_update ();
679         }
680
681         void file_add_kdm ()
682         {
683                 auto d = new wxFileDialog (this, _("Select KDM"));
684
685                 if (d->ShowModal() == wxID_OK) {
686                         DCPOMATIC_ASSERT (_film);
687                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
688                         DCPOMATIC_ASSERT (dcp);
689                         try {
690                                 if (dcp) {
691                                         _viewer.set_coalesce_player_changes(true);
692                                         dcp->add_kdm (dcp::EncryptedKDM(dcp::file_to_string(wx_to_std(d->GetPath()), MAX_KDM_SIZE)));
693                                         examine_content();
694                                         _viewer.set_coalesce_player_changes(false);
695                                 }
696                         } catch (exception& e) {
697                                 error_dialog (this, wxString::Format (_("Could not load KDM.")), std_to_wx(e.what()));
698                                 d->Destroy ();
699                                 return;
700                         }
701                 }
702
703                 d->Destroy ();
704                 _info->triggered_update ();
705         }
706
707         void file_save_frame ()
708         {
709                 wxFileDialog dialog (this, _("Save frame to file"), "", "", "PNG files (*.png)|*.png|JPEG files (*.jpg,*.jpeg)|*.jpg,*.jpeg", wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
710                 if (dialog.ShowModal() == wxID_CANCEL) {
711                         return;
712                 }
713
714                 auto path = boost::filesystem::path (wx_to_std(dialog.GetPath()));
715
716                 auto player = make_shared<Player>(_film, Image::Alignment::PADDED);
717                 player->seek(_viewer.position(), true);
718
719                 bool done = false;
720                 player->Video.connect ([path, &done, this](shared_ptr<PlayerVideo> video, DCPTime) {
721                         auto ext = boost::algorithm::to_lower_copy(path.extension().string());
722                         if (ext == ".png") {
723                                 auto image = video->image(boost::bind(PlayerVideo::force, AV_PIX_FMT_RGBA), VideoRange::FULL, false);
724                                 image_as_png(image).write(path);
725                         } else if (ext == ".jpg" || ext == ".jpeg") {
726                                 auto image = video->image(boost::bind(PlayerVideo::force, AV_PIX_FMT_RGB24), VideoRange::FULL, false);
727                                 image_as_jpeg(image, 80).write(path);
728                         } else {
729                                 error_dialog (this, _(wxString::Format("Unrecognised file extension %s (use .jpg, .jpeg or .png)", std_to_wx(ext))));
730                         }
731                         done = true;
732                 });
733
734                 int tries_left = 50;
735                 while (!done && tries_left >= 0) {
736                         player->pass();
737                         --tries_left;
738                 }
739
740                 DCPOMATIC_ASSERT (tries_left >= 0);
741         }
742
743         void file_history (wxCommandEvent& event)
744         {
745                 auto history = Config::instance()->player_history ();
746                 int n = event.GetId() - ID_file_history;
747                 if (n >= 0 && n < static_cast<int> (history.size ())) {
748                         try {
749                                 load_dcp (history[n]);
750                         } catch (exception& e) {
751                                 error_dialog (0, std_to_wx(String::compose(wx_to_std(_("Could not load DCP %1.")), history[n])), std_to_wx(e.what()));
752                         }
753                 }
754         }
755
756         void file_close ()
757         {
758                 reset_film ();
759                 _info->triggered_update ();
760                 set_menu_sensitivity ();
761         }
762
763         void file_exit ()
764         {
765                 Close ();
766         }
767
768         void edit_preferences ()
769         {
770                 if (!Config::instance()->have_write_permission()) {
771                         return;
772                 }
773
774                 if (!_config_dialog) {
775                         _config_dialog = create_player_config_dialog ();
776                 }
777                 _config_dialog->Show (this);
778         }
779
780         void view_cpl (wxCommandEvent& ev)
781         {
782                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
783                 DCPOMATIC_ASSERT (dcp);
784                 auto cpls = dcp::find_and_resolve_cpls (dcp->directories(), true);
785                 int id = ev.GetId() - ID_view_cpl;
786                 DCPOMATIC_ASSERT (id >= 0);
787                 DCPOMATIC_ASSERT (id < int(cpls.size()));
788                 auto i = cpls.begin();
789                 while (id > 0) {
790                         ++i;
791                         --id;
792                 }
793
794                 _viewer.set_coalesce_player_changes(true);
795                 dcp->set_cpl ((*i)->id());
796                 examine_content ();
797                 _viewer.set_coalesce_player_changes(false);
798
799                 _info->triggered_update ();
800         }
801
802         void view_full_screen ()
803         {
804                 if (_mode == Config::PLAYER_MODE_FULL) {
805                         _mode = Config::PLAYER_MODE_WINDOW;
806                 } else {
807                         _mode = Config::PLAYER_MODE_FULL;
808                 }
809                 setup_screen ();
810                 setup_menu ();
811         }
812
813         void view_dual_screen ()
814         {
815                 if (_mode == Config::PLAYER_MODE_DUAL) {
816                         _mode = Config::PLAYER_MODE_WINDOW;
817                 } else {
818                         _mode = Config::PLAYER_MODE_DUAL;
819                 }
820                 setup_screen ();
821                 setup_menu ();
822         }
823
824         void setup_menu ()
825         {
826                 if (_view_full_screen) {
827                         _view_full_screen->Check (_mode == Config::PLAYER_MODE_FULL);
828                 }
829                 if (_view_dual_screen) {
830                         _view_dual_screen->Check (_mode == Config::PLAYER_MODE_DUAL);
831                 }
832         }
833
834         void setup_screen ()
835         {
836                 _controls->Show (_mode != Config::PLAYER_MODE_FULL);
837                 _info->Show (_mode != Config::PLAYER_MODE_FULL);
838                 _overall_panel->SetBackgroundColour (_mode == Config::PLAYER_MODE_FULL ? wxColour(0, 0, 0) : wxNullColour);
839                 ShowFullScreen (_mode == Config::PLAYER_MODE_FULL);
840                 _viewer.set_pad_black(_mode != Config::PLAYER_MODE_WINDOW);
841
842                 if (_mode == Config::PLAYER_MODE_DUAL) {
843                         _dual_screen = new wxFrame (this, wxID_ANY, wxT(""));
844                         _dual_screen->SetBackgroundColour (wxColour(0, 0, 0));
845                         _dual_screen->ShowFullScreen (true);
846                         _viewer.panel()->Reparent(_dual_screen);
847                         _viewer.panel()->SetFocus();
848                         _dual_screen->Show ();
849                         if (wxDisplay::GetCount() > 1) {
850                                 switch (Config::instance()->image_display()) {
851                                 case 0:
852                                         _dual_screen->Move (0, 0);
853                                         Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
854                                         break;
855                                 case 1:
856                                         _dual_screen->Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
857                                         // (0, 0) doesn't seem to work for some strange reason
858                                         Move (8, 8);
859                                         break;
860                                 }
861                         }
862                         _dual_screen->Bind(wxEVT_CHAR_HOOK, boost::bind(&DOMFrame::dual_screen_key_press, this, _1));
863                 } else {
864                         if (_dual_screen) {
865                                 _viewer.panel()->Reparent(_overall_panel);
866                                 _dual_screen->Destroy ();
867                                 _dual_screen = 0;
868                         }
869                 }
870
871                 setup_main_sizer (_mode);
872         }
873
874         void dual_screen_key_press(wxKeyEvent& ev)
875         {
876                 if (ev.GetKeyCode() == WXK_F11) {
877                         if (ev.ShiftDown()) {
878                                 view_dual_screen();
879                         } else if (!ev.HasAnyModifiers()) {
880                                 view_full_screen();
881                         }
882                 }
883         }
884
885         void view_closed_captions ()
886         {
887                 _viewer.show_closed_captions();
888         }
889
890         void tools_verify ()
891         {
892                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
893                 DCPOMATIC_ASSERT (dcp);
894
895                 auto job = make_shared<VerifyDCPJob>(dcp->directories());
896                 auto progress = new VerifyDCPProgressDialog(this, _("DCP-o-matic Player"));
897                 bool const completed = progress->run (job);
898                 progress->Destroy ();
899                 if (!completed) {
900                         return;
901                 }
902
903                 auto d = new VerifyDCPDialog (this, job);
904                 d->ShowModal ();
905                 d->Destroy ();
906         }
907
908         void tools_check_for_updates ()
909         {
910                 UpdateChecker::instance()->run ();
911                 _update_news_requested = true;
912         }
913
914         void tools_timing ()
915         {
916                 auto d = new TimerDisplay(this, _viewer.state_timer(), _viewer.gets());
917                 d->ShowModal ();
918                 d->Destroy ();
919         }
920
921         void tools_system_information ()
922         {
923                 if (!_system_information_dialog) {
924                         _system_information_dialog = new SystemInformationDialog (this, _viewer);
925                 }
926
927                 _system_information_dialog->Show ();
928         }
929
930         void help_about ()
931         {
932                 auto d = new AboutDialog (this);
933                 d->ShowModal ();
934                 d->Destroy ();
935         }
936
937         void help_report_a_problem ()
938         {
939                 auto d = new ReportProblemDialog (this);
940                 if (d->ShowModal () == wxID_OK) {
941                         d->report ();
942                 }
943                 d->Destroy ();
944         }
945
946         void update_checker_state_changed ()
947         {
948                 auto uc = UpdateChecker::instance ();
949
950                 bool const announce =
951                         _update_news_requested ||
952                         (uc->stable() && Config::instance()->check_for_updates()) ||
953                         (uc->test() && Config::instance()->check_for_updates() && Config::instance()->check_for_test_updates());
954
955                 _update_news_requested = false;
956
957                 if (!announce) {
958                         return;
959                 }
960
961                 if (uc->state() == UpdateChecker::State::YES) {
962                         auto dialog = new UpdateDialog (this, uc->stable (), uc->test ());
963                         dialog->ShowModal ();
964                         dialog->Destroy ();
965                 } else if (uc->state() == UpdateChecker::State::FAILED) {
966                         error_dialog (this, _("The DCP-o-matic download server could not be contacted."));
967                 } else {
968                         error_dialog (this, _("There are no new versions of DCP-o-matic available."));
969                 }
970
971                 _update_news_requested = false;
972         }
973
974         void config_changed (Config::Property prop)
975         {
976                 /* Instantly save any config changes when using the player GUI */
977                 try {
978                         Config::instance()->write_config();
979                 } catch (FileError& e) {
980                         if (prop != Config::HISTORY) {
981                                 error_dialog (
982                                         this,
983                                         wxString::Format(
984                                                 _("Could not write to config file at %s.  Your changes have not been saved."),
985                                                 std_to_wx(e.file().string())
986                                                 )
987                                         );
988                         }
989                 } catch (exception& e) {
990                         error_dialog (
991                                 this,
992                                 _("Could not write to config file.  Your changes have not been saved.")
993                                 );
994                 }
995
996                 update_from_config (prop);
997         }
998
999         void update_from_config (Config::Property prop)
1000         {
1001                 for (int i = 0; i < _history_items; ++i) {
1002                         delete _file_menu->Remove (ID_file_history + i);
1003                 }
1004
1005                 if (_history_separator) {
1006                         _file_menu->Remove (_history_separator);
1007                 }
1008                 delete _history_separator;
1009                 _history_separator = nullptr;
1010
1011                 int pos = _history_position;
1012
1013                 /* Clear out non-existent history items before we re-build the menu */
1014                 Config::instance()->clean_player_history ();
1015                 auto history = Config::instance()->player_history ();
1016
1017                 if (!history.empty ()) {
1018                         _history_separator = _file_menu->InsertSeparator (pos++);
1019                 }
1020
1021                 for (size_t i = 0; i < history.size(); ++i) {
1022                         string s;
1023                         if (i < 9) {
1024                                 s = String::compose ("&%1 %2", i + 1, history[i].string());
1025                         } else {
1026                                 s = history[i].string();
1027                         }
1028                         _file_menu->Insert (pos++, ID_file_history + i, std_to_wx (s));
1029                 }
1030
1031                 _history_items = history.size ();
1032
1033                 if (prop == Config::PLAYER_DEBUG_LOG) {
1034                         auto p = Config::instance()->player_debug_log_file();
1035                         if (p) {
1036                                 dcpomatic_log = make_shared<FileLog>(*p);
1037                         } else {
1038                                 dcpomatic_log = make_shared<NullLog>();
1039                         }
1040                         dcpomatic_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR | LogEntry::TYPE_DEBUG_VIDEO_VIEW);
1041                 }
1042         }
1043
1044         void set_menu_sensitivity ()
1045         {
1046                 _tools_verify->Enable (static_cast<bool>(_film));
1047                 _file_add_ov->Enable (static_cast<bool>(_film));
1048                 _file_add_kdm->Enable (static_cast<bool>(_film));
1049                 _file_save_frame->Enable (static_cast<bool>(_film));
1050                 _view_cpl->Enable (static_cast<bool>(_film));
1051         }
1052
1053         void start_stop_pressed ()
1054         {
1055                 if (_viewer.playing()) {
1056                         _viewer.stop();
1057                 } else {
1058                         _viewer.start();
1059                 }
1060         }
1061
1062         void go_back_frame ()
1063         {
1064                 _viewer.seek_by(-_viewer.one_video_frame(), true);
1065         }
1066
1067         void go_forward_frame ()
1068         {
1069                 _viewer.seek_by(_viewer.one_video_frame(), true);
1070         }
1071
1072         void go_seconds (int s)
1073         {
1074                 _viewer.seek_by(DCPTime::from_seconds(s), true);
1075         }
1076
1077         void go_to_start ()
1078         {
1079                 _viewer.seek(DCPTime(), true);
1080         }
1081
1082         void go_to_end ()
1083         {
1084                 _viewer.seek(_film->length() - _viewer.one_video_frame(), true);
1085         }
1086
1087         wxFrame* _dual_screen = nullptr;
1088         bool _update_news_requested = false;
1089         PlayerInformation* _info = nullptr;
1090         Config::PlayerMode _mode;
1091         wxPreferencesEditor* _config_dialog = nullptr;
1092         wxPanel* _overall_panel = nullptr;
1093         wxMenu* _file_menu = nullptr;
1094         wxMenuItem* _view_cpl = nullptr;
1095         wxMenu* _cpl_menu = nullptr;
1096         int _history_items = 0;
1097         int _history_position = 0;
1098         wxMenuItem* _history_separator = nullptr;
1099         FilmViewer _viewer;
1100         Controls* _controls;
1101         SystemInformationDialog* _system_information_dialog = nullptr;
1102         std::shared_ptr<Film> _film;
1103         boost::signals2::scoped_connection _config_changed_connection;
1104         boost::signals2::scoped_connection _examine_job_connection;
1105         wxMenuItem* _file_add_ov = nullptr;
1106         wxMenuItem* _file_add_kdm = nullptr;
1107         wxMenuItem* _file_save_frame = nullptr;
1108         wxMenuItem* _tools_verify = nullptr;
1109         wxMenuItem* _view_full_screen = nullptr;
1110         wxMenuItem* _view_dual_screen = nullptr;
1111         wxSizer* _main_sizer = nullptr;
1112         PlayerStressTester _stress;
1113 };
1114
1115 static const wxCmdLineEntryDesc command_line_description[] = {
1116         { wxCMD_LINE_PARAM, 0, 0, "DCP to load or create", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1117         { wxCMD_LINE_OPTION, "c", "config", "Directory containing config.xml", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1118         { wxCMD_LINE_OPTION, "s", "stress", "File containing description of stress test", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1119         { wxCMD_LINE_NONE, "", "", "", wxCmdLineParamType (0), 0 }
1120 };
1121
1122 class PlayServer : public Server
1123 {
1124 public:
1125         explicit PlayServer (DOMFrame* frame)
1126                 : Server (PLAYER_PLAY_PORT)
1127                 , _frame (frame)
1128         {}
1129
1130         void handle (shared_ptr<Socket> socket) override
1131         {
1132                 try {
1133                         int const length = socket->read_uint32 ();
1134                         scoped_array<char> buffer (new char[length]);
1135                         socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
1136                         string s (buffer.get());
1137                         signal_manager->when_idle (bind (&DOMFrame::load_dcp, _frame, s));
1138                         socket->write (reinterpret_cast<uint8_t const *> ("OK"), 3);
1139                 } catch (...) {
1140
1141                 }
1142         }
1143
1144 private:
1145         DOMFrame* _frame;
1146 };
1147
1148 /** @class App
1149  *  @brief The magic App class for wxWidgets.
1150  */
1151 class App : public wxApp
1152 {
1153 public:
1154         App ()
1155                 : wxApp ()
1156         {
1157 #ifdef DCPOMATIC_LINUX
1158                 XInitThreads ();
1159 #endif
1160         }
1161
1162 private:
1163
1164         bool OnInit () override
1165         {
1166                 wxSplashScreen* splash = nullptr;
1167                 try {
1168                         wxInitAllImageHandlers ();
1169
1170                         Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
1171                         Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
1172
1173                         splash = maybe_show_splash ();
1174
1175                         SetAppName (_("DCP-o-matic Player"));
1176
1177                         if (!wxApp::OnInit()) {
1178                                 return false;
1179                         }
1180
1181 #ifdef DCPOMATIC_LINUX
1182                         unsetenv ("UBUNTU_MENUPROXY");
1183 #endif
1184
1185 #ifdef DCPOMATIC_OSX
1186                         make_foreground_application ();
1187 #endif
1188
1189                         dcpomatic_setup_path_encoding ();
1190
1191                         /* Enable i18n; this will create a Config object
1192                            to look for a force-configured language.  This Config
1193                            object will be wrong, however, because dcpomatic_setup
1194                            hasn't yet been called and there aren't any filters etc.
1195                            set up yet.
1196                         */
1197                         dcpomatic_setup_i18n ();
1198
1199                         /* Set things up, including filters etc.
1200                            which will now be internationalised correctly.
1201                         */
1202                         dcpomatic_setup ();
1203
1204                         /* Force the configuration to be re-loaded correctly next
1205                            time it is needed.
1206                         */
1207                         Config::drop ();
1208
1209                         signal_manager = new wxSignalManager (this);
1210
1211                         _frame = new DOMFrame ();
1212                         SetTopWindow (_frame);
1213                         _frame->Maximize ();
1214                         if (splash) {
1215                                 splash->Destroy ();
1216                                 splash = nullptr;
1217                         }
1218                         _frame->Show ();
1219
1220                         try {
1221                                 auto server = new PlayServer (_frame);
1222                                 new thread (boost::bind (&PlayServer::run, server));
1223                         } catch (std::exception& e) {
1224                                 /* This is not the end of the world; probably a failure to bind the server socket
1225                                  * because there's already another player running.
1226                                  */
1227                                 LOG_DEBUG_PLAYER ("Failed to start play server (%1)", e.what());
1228                         }
1229
1230                         if (!_dcp_to_load.empty() && boost::filesystem::is_directory (_dcp_to_load)) {
1231                                 try {
1232                                         _frame->load_dcp (_dcp_to_load);
1233                                 } catch (exception& e) {
1234                                         error_dialog (0, std_to_wx (String::compose (wx_to_std (_("Could not load DCP %1.")), _dcp_to_load)), std_to_wx(e.what()));
1235                                 }
1236                         }
1237
1238                         if (_stress) {
1239                                 try {
1240                                         _frame->load_stress_script (*_stress);
1241                                 } catch (exception& e) {
1242                                         error_dialog (0, wxString::Format("Could not load stress test file %s", std_to_wx(*_stress)));
1243                                 }
1244                         }
1245
1246                         Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
1247
1248                         if (Config::instance()->check_for_updates ()) {
1249                                 UpdateChecker::instance()->run ();
1250                         }
1251                 }
1252                 catch (exception& e)
1253                 {
1254                         if (splash) {
1255                                 splash->Destroy ();
1256                         }
1257                         error_dialog (0, _("DCP-o-matic Player could not start."), std_to_wx(e.what()));
1258                 }
1259
1260                 return true;
1261         }
1262
1263         void OnInitCmdLine (wxCmdLineParser& parser) override
1264         {
1265                 parser.SetDesc (command_line_description);
1266                 parser.SetSwitchChars (wxT ("-"));
1267         }
1268
1269         bool OnCmdLineParsed (wxCmdLineParser& parser) override
1270         {
1271                 if (parser.GetParamCount() > 0) {
1272                         _dcp_to_load = wx_to_std (parser.GetParam (0));
1273                 }
1274
1275                 wxString config;
1276                 if (parser.Found("c", &config)) {
1277                         Config::override_path = wx_to_std (config);
1278                 }
1279                 wxString stress;
1280                 if (parser.Found("s", &stress)) {
1281                         _stress = wx_to_std (stress);
1282                 }
1283
1284                 return true;
1285         }
1286
1287         void report_exception ()
1288         {
1289                 try {
1290                         throw;
1291                 } catch (FileError& e) {
1292                         error_dialog (
1293                                 0,
1294                                 wxString::Format (
1295                                         _("An exception occurred: %s (%s)\n\n") + REPORT_PROBLEM,
1296                                         std_to_wx (e.what()),
1297                                         std_to_wx (e.file().string().c_str ())
1298                                         )
1299                                 );
1300                 } catch (exception& e) {
1301                         error_dialog (
1302                                 0,
1303                                 wxString::Format (
1304                                         _("An exception occurred: %s.\n\n") + REPORT_PROBLEM,
1305                                         std_to_wx (e.what ())
1306                                         )
1307                                 );
1308                 } catch (...) {
1309                         error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
1310                 }
1311         }
1312
1313         /* An unhandled exception has occurred inside the main event loop */
1314         bool OnExceptionInMainLoop () override
1315         {
1316                 report_exception ();
1317                 /* This will terminate the program */
1318                 return false;
1319         }
1320
1321         void OnUnhandledException () override
1322         {
1323                 report_exception ();
1324         }
1325
1326         void idle ()
1327         {
1328                 signal_manager->ui_idle ();
1329         }
1330
1331         void config_failed_to_load ()
1332         {
1333                 message_dialog (_frame, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
1334         }
1335
1336         void config_warning (string m)
1337         {
1338                 message_dialog (_frame, std_to_wx (m));
1339         }
1340
1341         DOMFrame* _frame = nullptr;
1342         string _dcp_to_load;
1343         boost::optional<string> _stress;
1344 };
1345
1346 IMPLEMENT_APP (App)