1 // Copyright 2005 Ben Hutchings <ben@decadentplace.org.uk>.
2 // See the file "COPYING" for licence details.
18 #include <boost/shared_ptr.hpp>
20 #include <gdkmm/pixbuf.h>
21 #include <glibmm/convert.h>
22 #include <glibmm/spawn.h>
23 #include <gtkmm/main.h>
24 #include <gtkmm/window.h>
26 #include <imglib2/ImageErrors.h>
27 #include <nsGUIEvent.h>
28 #include <nsIBoxObject.h>
29 #include <nsIContent.h>
30 #include <nsIDocShell.h>
31 #include <nsIDOMAbstractView.h>
32 #include <nsIDOMBarProp.h>
33 #include <nsIDOMDocumentEvent.h>
34 #include <nsIDOMDocumentView.h>
35 #include <nsIDOMElement.h>
36 #include <nsIDOMEventTarget.h>
37 #include <nsIDOMHTMLDocument.h>
38 #include <nsIDOMMouseEvent.h>
39 #include <nsIDOMNSDocument.h>
40 #include <nsIDOMWindow.h>
41 #include <nsIEventStateManager.h>
42 #include <nsIInterfaceRequestorUtils.h>
43 #include <nsIURI.h> // required before nsILink.h
45 #include <nsIPresContext.h>
46 #include <nsIPresShell.h>
47 #include <nsIWebBrowser.h>
50 #include "browserwidget.hpp"
51 #include "childiterator.hpp"
53 #include "framebuffer.hpp"
54 #include "linkiterator.hpp"
55 #include "pixbufs.hpp"
56 #include "stylesheets.hpp"
57 #include "temp_file.hpp"
59 #include "xpcom_support.hpp"
61 using xpcom_support::check;
67 int left, top; // inclusive
68 int right, bottom; // exclusive
70 rectangle operator|=(const rectangle & other)
74 // use current extents unchanged
83 // find rectangle enclosing both extents
84 left = std::min(left, other.left);
85 top = std::min(top, other.top);
86 right = std::max(right, other.right);
87 bottom = std::max(bottom, other.bottom);
93 rectangle operator&=(const rectangle & other)
95 // find rectangle enclosed in both extents
96 left = std::max(left, other.left);
97 top = std::max(top, other.top);
98 right = std::max(left, std::min(right, other.right));
99 bottom = std::max(top, std::min(bottom, other.bottom));
105 return left == right || bottom == top;
109 rectangle get_elem_rect(nsIDOMNSDocument * ns_doc,
110 nsIDOMElement * elem)
114 // Start with this element's bounding box
115 nsCOMPtr<nsIBoxObject> box;
116 check(ns_doc->GetBoxObjectFor(elem, getter_AddRefs(box)));
118 check(box->GetScreenX(&result.left));
119 check(box->GetScreenY(&result.top));
120 check(box->GetWidth(&width));
121 check(box->GetHeight(&height));
122 result.right = result.left + width;
123 result.bottom = result.top + height;
125 // Merge bounding boxes of all child elements
126 for (ChildIterator it = ChildIterator(elem), end; it != end; ++it)
128 nsCOMPtr<nsIDOMNode> child_node(*it);
130 if (check(child_node->GetNodeType(&child_type)),
131 child_type == nsIDOMNode::ELEMENT_NODE)
133 nsCOMPtr<nsIDOMElement> child_elem(
134 do_QueryInterface(child_node));
135 result |= get_elem_rect(ns_doc, child_elem);
142 class WebDvdWindow : public Gtk::Window
146 const video::frame_params & frame_params,
147 const std::string & main_page_uri,
148 const std::string & output_dir);
151 void add_page(const std::string & uri);
152 void add_video(const std::string & uri);
153 void load_next_page();
154 void on_net_state_change(const char * uri, gint flags, guint status);
156 void save_screenshot();
157 void process_links(nsIPresShell * pres_shell,
158 nsIPresContext * pres_context,
159 nsIDOMWindow * dom_window);
162 enum ResourceType { page_resource, video_resource };
163 typedef std::pair<ResourceType, int> ResourceEntry;
164 video::frame_params frame_params_;
165 std::string output_dir_;
166 BrowserWidget browser_widget_;
167 nsCOMPtr<nsIStyleSheet> stylesheet_;
168 std::queue<std::string> page_queue_;
169 std::map<std::string, ResourceEntry> resource_map_;
170 std::vector<std::vector<std::string> > page_links_;
171 std::vector<std::string> video_paths_;
172 bool pending_window_update_;
173 int pending_req_count_;
174 bool have_tweaked_page_;
175 std::auto_ptr<temp_file> background_temp_;
177 std::auto_ptr<page_state> page_state_;
178 std::vector<boost::shared_ptr<temp_file> > page_temp_files_;
181 WebDvdWindow::WebDvdWindow(
182 const video::frame_params & frame_params,
183 const std::string & main_page_uri,
184 const std::string & output_dir)
185 : frame_params_(frame_params),
186 output_dir_(output_dir),
187 stylesheet_(load_css("file://" WEBDVD_LIB_DIR "/webdvd.css")),
188 pending_window_update_(false),
189 pending_req_count_(0),
190 have_tweaked_page_(false)
192 set_size_request(frame_params_.width, frame_params_.height);
193 set_resizable(false);
195 add(browser_widget_);
196 browser_widget_.show();
197 browser_widget_.signal_net_state().connect(
198 SigC::slot(*this, &WebDvdWindow::on_net_state_change));
200 add_page(main_page_uri);
204 void WebDvdWindow::add_page(const std::string & uri)
206 if (resource_map_.insert(
207 std::make_pair(uri, ResourceEntry(page_resource, 0)))
210 page_queue_.push(uri);
214 void WebDvdWindow::add_video(const std::string & uri)
216 if (resource_map_.insert(
217 std::make_pair(uri, ResourceEntry(video_resource,
218 video_paths_.size() + 1)))
221 Glib::ustring hostname;
222 video_paths_.push_back(Glib::filename_from_uri(uri, hostname));
223 // FIXME: Should check the hostname
227 void WebDvdWindow::load_next_page()
229 assert(!page_queue_.empty());
230 const std::string & uri = page_queue_.front();
231 std::cout << "loading " << uri << std::endl;
233 std::size_t page_count = page_links_.size();
234 resource_map_[uri].second = ++page_count;
235 page_links_.resize(page_count);
237 browser_widget_.load_uri(uri);
240 void WebDvdWindow::on_net_state_change(const char * uri,
241 gint flags, guint status)
243 if (flags & GTK_MOZ_EMBED_FLAG_IS_REQUEST)
245 if (flags & GTK_MOZ_EMBED_FLAG_START)
246 ++pending_req_count_;
248 if (flags & GTK_MOZ_EMBED_FLAG_STOP)
250 assert(pending_req_count_ != 0);
251 --pending_req_count_;
255 if (flags & GTK_MOZ_EMBED_FLAG_IS_DOCUMENT
256 && flags & GTK_MOZ_EMBED_FLAG_START)
258 pending_window_update_ = true;
259 have_tweaked_page_ = false;
262 if (flags & GTK_MOZ_EMBED_FLAG_IS_WINDOW
263 && flags & GTK_MOZ_EMBED_FLAG_STOP)
265 // Check whether the load was successful, ignoring this
267 if (status != NS_IMAGELIB_ERROR_LOAD_ABORTED)
270 pending_window_update_ = false;
273 if (pending_req_count_ == 0 && !pending_window_update_)
280 catch (std::exception & e)
282 std::cerr << "Fatal error";
283 if (!page_queue_.empty())
284 std::cerr << " while processing <" << page_queue_.front()
286 std::cerr << ": " << e.what() << "\n";
292 bool WebDvdWindow::process_page()
294 assert(!page_queue_.empty());
296 nsCOMPtr<nsIWebBrowser> browser(browser_widget_.get_browser());
297 nsCOMPtr<nsIDocShell> doc_shell(do_GetInterface(browser));
299 nsCOMPtr<nsIPresShell> pres_shell;
300 check(doc_shell->GetPresShell(getter_AddRefs(pres_shell)));
301 nsCOMPtr<nsIPresContext> pres_context;
302 check(doc_shell->GetPresContext(getter_AddRefs(pres_context)));
303 nsCOMPtr<nsIDOMWindow> dom_window;
304 check(browser->GetContentDOMWindow(getter_AddRefs(dom_window)));
306 // If we haven't done so already, apply the stylesheet and
307 // disable scrollbars.
308 if (!have_tweaked_page_)
310 apply_style_sheet(stylesheet_, pres_shell);
312 // This actually only needs to be done once.
313 nsCOMPtr<nsIDOMBarProp> dom_bar_prop;
314 check(dom_window->GetScrollbars(getter_AddRefs(dom_bar_prop)));
315 check(dom_bar_prop->SetVisible(false));
317 have_tweaked_page_ = true;
319 // Might need to wait a while for things to load or more
320 // likely for a re-layout.
321 if (pending_req_count_ > 0)
325 // All further work should only be done if we're not in preview mode.
326 if (!output_dir_.empty())
328 // If we haven't already started work on this page, save a
329 // screenshot of its normal appearance.
330 if (!page_state_.get())
333 // Start or continue processing links.
334 process_links(pres_shell, pres_context, dom_window);
336 // If we've finished work on the links, move on to the
337 // next page, if any, or else generate the DVD filesystem.
338 if (!page_state_.get())
341 if (page_queue_.empty())
356 void WebDvdWindow::save_screenshot()
358 Glib::RefPtr<Gdk::Window> window(get_window());
360 window->process_updates(true);
362 background_temp_.reset(new temp_file("webdvd-back-"));
363 background_temp_->close();
364 std::cout << "saving " << background_temp_->get_name() << std::endl;
365 Gdk::Pixbuf::create(Glib::RefPtr<Gdk::Drawable>(window),
366 window->get_colormap(),
368 frame_params_.width, frame_params_.height)
369 ->save(background_temp_->get_name(), "png");
372 struct WebDvdWindow::page_state
374 page_state(nsIDOMDocument * doc, int width, int height)
375 : diff_pixbuf(Gdk::Pixbuf::create(
377 true, 8, // has_alpha, bits_per_sample
379 spumux_temp("webdvd-spumux-"),
380 links_temp("webdvd-links-"),
389 Glib::RefPtr<Gdk::Pixbuf> diff_pixbuf;
391 temp_file spumux_temp;
392 std::ofstream spumux_file;
394 temp_file links_temp;
397 LinkIterator links_it, links_end;
401 Glib::RefPtr<Gdk::Pixbuf> norm_pixbuf;
404 void WebDvdWindow::process_links(nsIPresShell * pres_shell,
405 nsIPresContext * pres_context,
406 nsIDOMWindow * dom_window)
408 Glib::RefPtr<Gdk::Window> window(get_window());
411 nsCOMPtr<nsIDOMDocument> basic_doc;
412 check(dom_window->GetDocument(getter_AddRefs(basic_doc)));
413 nsCOMPtr<nsIDOMNSDocument> ns_doc(do_QueryInterface(basic_doc));
415 nsCOMPtr<nsIEventStateManager> event_state_man(
416 pres_context->EventStateManager()); // does not AddRef
417 assert(event_state_man);
418 nsCOMPtr<nsIDOMDocumentEvent> event_factory(
419 do_QueryInterface(basic_doc));
420 assert(event_factory);
421 nsCOMPtr<nsIDOMDocumentView> doc_view(do_QueryInterface(basic_doc));
423 nsCOMPtr<nsIDOMAbstractView> view;
424 check(doc_view->GetDefaultView(getter_AddRefs(view)));
426 // Set up or recover our iteration state.
427 std::auto_ptr<page_state> state(page_state_);
432 basic_doc, frame_params_.width, frame_params_.height));
434 state->spumux_file.open(state->spumux_temp.get_name().c_str());
435 state->spumux_file <<
438 " <spu force='yes' start='00:00:00.00'\n"
439 " highlight='" << state->links_temp.get_name() << "'\n"
440 " select='" << state->links_temp.get_name() << "'>\n";
443 rectangle window_rect = {
444 0, 0, frame_params_.width, frame_params_.height
447 for (/* no initialisation */;
448 state->links_it != state->links_end;
451 nsCOMPtr<nsIDOMNode> node(*state->links_it);
453 // Find the link URI.
454 nsCOMPtr<nsILink> link(do_QueryInterface(node));
456 nsCOMPtr<nsIURI> uri;
457 check(link->GetHrefURI(getter_AddRefs(uri)));
458 std::string uri_string;
460 nsCString uri_ns_string;
461 check(uri->GetSpec(uri_ns_string));
462 uri_string.assign(uri_ns_string.BeginReading(),
463 uri_ns_string.EndReading());
465 std::string uri_sans_fragment(uri_string, 0, uri_string.find('#'));
467 // Is this a new link?
468 if (!state->link_changing)
470 // Find a rectangle enclosing the link and clip it to the
472 nsCOMPtr<nsIDOMElement> elem(do_QueryInterface(node));
474 state->link_rect = get_elem_rect(ns_doc, elem);
475 state->link_rect &= window_rect;
477 if (state->link_rect.empty())
479 std::cerr << "Ignoring invisible link to "
480 << uri_string << "\n";
486 if (state->link_num >= dvd::menu_buttons_max)
488 if (state->link_num == dvd::menu_buttons_max)
489 std::cerr << "No more than " << dvd::menu_buttons_max
490 << " buttons can be placed on a page\n";
491 std::cerr << "Ignoring link to " << uri_string << "\n";
495 // Check whether this is a link to a video or a page then
496 // add it to the known resources if not already seen.
498 check(uri->GetPath(path));
499 // FIXME: This is a bit of a hack. Perhaps we could decide
500 // later based on the MIME type determined by Mozilla?
501 if (path.Length() > 4
502 && std::strcmp(path.EndReading() - 4, ".vob") == 0)
505 check(uri->SchemeIs("file", &is_file));
508 std::cerr << "Links to video must use the file:"
512 add_video(uri_sans_fragment);
516 add_page(uri_sans_fragment);
519 nsCOMPtr<nsIContent> content(do_QueryInterface(node));
521 nsCOMPtr<nsIDOMEventTarget> event_target(
522 do_QueryInterface(node));
523 assert(event_target);
525 state->norm_pixbuf = Gdk::Pixbuf::create(
526 Glib::RefPtr<Gdk::Drawable>(window),
527 window->get_colormap(),
528 state->link_rect.left,
529 state->link_rect.top,
532 state->link_rect.right - state->link_rect.left,
533 state->link_rect.bottom - state->link_rect.top);
535 nsCOMPtr<nsIDOMEvent> event;
536 check(event_factory->CreateEvent(
537 NS_ConvertASCIItoUTF16("MouseEvents"),
538 getter_AddRefs(event)));
539 nsCOMPtr<nsIDOMMouseEvent> mouse_event(
540 do_QueryInterface(event));
542 check(mouse_event->InitMouseEvent(
543 NS_ConvertASCIItoUTF16("mouseover"),
547 0, // detail: mouse click count
548 state->link_rect.left, // screenX
549 state->link_rect.top, // screenY
550 state->link_rect.left, // clientX
551 state->link_rect.top, // clientY
552 false, false, false, false, // qualifiers
553 0, // button: left (or primary)
554 0)); // related target
556 check(event_target->DispatchEvent(mouse_event,
558 check(event_state_man->SetContentState(content,
559 NS_EVENT_STATE_HOVER));
561 pres_shell->FlushPendingNotifications(true);
563 // We may have to exit and wait for image loading
564 // to complete, at which point we will be called
566 if (pending_req_count_ > 0)
568 state->link_changing = true;
574 window->process_updates(true);
576 Glib::RefPtr<Gdk::Pixbuf> changed_pixbuf(
578 Glib::RefPtr<Gdk::Drawable>(window),
579 window->get_colormap(),
580 state->link_rect.left,
581 state->link_rect.top,
584 state->link_rect.right - state->link_rect.left,
585 state->link_rect.bottom - state->link_rect.top));
590 state->link_rect.left,
591 state->link_rect.top,
592 state->link_rect.right - state->link_rect.left,
593 state->link_rect.bottom - state->link_rect.top);
595 state->spumux_file <<
596 " <button x0='" << state->link_rect.left << "'"
597 " y0='" << state->link_rect.top << "'"
598 " x1='" << state->link_rect.right - 1 << "'"
599 " y1='" << state->link_rect.bottom - 1 << "'/>\n";
601 // Add to the page's links, ignoring any fragment (for now).
602 page_links_.back().push_back(uri_sans_fragment);
605 quantise_rgba_pixbuf(state->diff_pixbuf, dvd::button_n_colours);
607 std::cout << "saving " << state->links_temp.get_name()
609 state->diff_pixbuf->save(state->links_temp.get_name(), "png");
611 state->spumux_file <<
616 state->spumux_file.close();
618 // TODO: if (!state->spumux_file) throw ...
621 boost::shared_ptr<temp_file> vob_temp(
622 new temp_file("webdvd-vob-"));
623 std::ostringstream command_stream;
624 command_stream << "pngtopnm "
625 << background_temp_->get_name()
626 << " | ppmtoy4m -v0 -n1 -F"
627 << frame_params_.rate_numer
628 << ":" << frame_params_.rate_denom
629 << " -A" << frame_params_.pixel_ratio_width
630 << ":" << frame_params_.pixel_ratio_height
631 << (" -Ip -S420_mpeg2"
632 " | mpeg2enc -v0 -f8 -a2 -o/dev/stdout"
633 " | mplex -v0 -f8 -o/dev/stdout /dev/stdin"
634 " | spumux -v0 -mdvd ")
635 << state->spumux_temp.get_name()
636 << " > " << vob_temp->get_name();
637 std::string command(command_stream.str());
638 const char * argv[] = {
639 "/bin/sh", "-c", command.c_str(), 0
641 std::cout << "running " << argv[2] << std::endl;
643 Glib::spawn_sync(".",
644 Glib::ArrayHandle<std::string>(
645 argv, sizeof(argv)/sizeof(argv[0]),
646 Glib::OWNERSHIP_NONE),
647 Glib::SPAWN_STDOUT_TO_DEV_NULL,
651 if (command_result != 0)
652 throw std::runtime_error("spumux pipeline failed");
654 page_temp_files_.push_back(vob_temp);
658 void generate_page_dispatch(std::ostream &, int indent,
659 int first_page, int last_page);
661 void WebDvdWindow::generate_dvd()
663 temp_file temp("webdvd-dvdauthor-");
665 std::ofstream file(temp.get_name().c_str());
667 // We generate code that uses registers in the following way:
669 // g0: link destination (when jumping to menu 1), then scratch
670 // g1: current location
671 // g2-g11: location history (g2 = most recent)
672 // g12: location that last linked to a video
674 // All locations are divided into two bitfields: the least
675 // significant 10 bits are a page/menu number and the most
676 // significant 6 bits are a link/button number. This is
677 // chosen for compatibility with the encoding of the s8
678 // (button) register.
680 static const int link_mult = dvd::reg_s8_button_mult;
681 static const int page_mask = link_mult - 1;
682 static const int link_mask = (1 << dvd::reg_bits) - link_mult;
689 for (std::size_t page_num = 1;
690 page_num <= page_links_.size();
693 std::vector<std::string> & page_links =
694 page_links_[page_num - 1];
698 // This is the first page (root menu) which needs to
699 // include initialisation and dispatch code.
702 " <pgc entry='title'>\n"
704 // Has the location been set yet?
707 // Initialise the current location to first link on
709 " g1 = " << 1 * link_mult + 1 << ";\n"
713 // Has the user selected a link?
716 // First update the history.
717 // Does link go to the last page in the history?
718 " if (((g0 ^ g2) & " << page_mask
720 // It does; we treat this as going back and pop the old
721 // location off the history stack into the current
722 // location. Clear the free stack slot.
724 " g1 = g2; g2 = g3; g3 = g4; g4 = g5;\n"
725 " g5 = g6; g6 = g7; g7 = g8; g8 = g9;\n"
726 " g9 = g10; g10 = g11; g11 = 0;\n"
729 // Link goes to some other page, so push current
730 // location onto the history stack and set the current
731 // location to be exactly the target location.
733 " g11 = g10; g10 = g9; g9 = g8; g8 = g7;\n"
734 " g7 = g6; g6 = g5; g5 = g4; g4 = g3;\n"
735 " g3 = g2; g2 = g1; g1 = g0;\n"
738 // Find the target page number.
739 " g0 = g1 & " << page_mask << ";\n";
740 // There seems to be no way to perform a computed jump,
741 // so we generate all possible jumps and a binary search
742 // to select the correct one.
743 generate_page_dispatch(file, 12, 1, page_links_.size());
747 else // page_num != 1
755 // Clear link indicator and highlight the
756 // appropriate link/button.
757 " g0 = 0; s8 = g1 & " << link_mask << ";\n"
760 << page_temp_files_[page_num - 1]->get_name() << "'/>\n";
762 for (std::size_t link_num = 1;
763 link_num <= page_links.size();
768 // Update current location.
769 " g1 = " << link_num * link_mult + page_num << ";";
771 // Jump to appropriate resource.
772 const ResourceEntry & resource_loc =
773 resource_map_[page_links[link_num - 1]];
774 if (resource_loc.first == page_resource)
776 " g0 = " << 1 * link_mult + resource_loc.second << ";"
778 else if (resource_loc.first == video_resource)
779 file << " jump title " << resource_loc.second << ";";
781 file << " </button>\n";
791 // Generate a titleset for each video. This appears to make
792 // jumping to titles a whole lot simpler.
793 for (std::size_t video_num = 1;
794 video_num <= video_paths_.size();
799 // Generate a dummy menu so that the menu button on the
800 // remote control will work.
802 " <pgc entry='root'>\n"
803 " <pre> jump vmgm menu; </pre>\n"
808 // Record calling page/menu.
809 " <pre> g12 = g1; </pre>\n"
810 // FIXME: Should XML-escape the path
811 " <vob file='" << video_paths_[video_num - 1]
813 // If page/menu location has not been changed during the
814 // video, change the location to be the following
815 // link/button when returning to it. In any case,
816 // return to a page/menu.
817 " <post> if (g1 eq g12) g1 = g1 + " << link_mult
818 << "; call menu; </post>\n"
830 const char * argv[] = {
832 "-o", output_dir_.c_str(),
833 "-x", temp.get_name().c_str(),
837 Glib::spawn_sync(".",
838 Glib::ArrayHandle<std::string>(
839 argv, sizeof(argv)/sizeof(argv[0]),
840 Glib::OWNERSHIP_NONE),
841 Glib::SPAWN_SEARCH_PATH
842 | Glib::SPAWN_STDOUT_TO_DEV_NULL,
846 if (command_result != 0)
847 throw std::runtime_error("dvdauthor failed");
851 void generate_page_dispatch(std::ostream & file, int indent,
852 int first_page, int last_page)
854 if (first_page == 1 && last_page == 1)
856 // The dispatch code is *on* page 1 so we must not dispatch to
857 // page 1 since that would cause an infinite loop. This case
858 // should be unreachable if there is more than one page due
859 // to the following case.
861 else if (first_page == 1 && last_page == 2)
863 // dvdauthor doesn't allow empty blocks or null statements so
864 // when selecting between pages 1 and 2 we don't use an "else"
865 // part. We must use braces so that a following "else" will
866 // match the right "if".
867 file << std::setw(indent) << "" << "{\n"
868 << std::setw(indent) << "" << "if (g0 eq 2)\n"
869 << std::setw(indent + 2) << "" << "jump menu 2;\n"
870 << std::setw(indent) << "" << "}\n";
872 else if (first_page == last_page)
874 file << std::setw(indent) << ""
875 << "jump menu " << first_page << ";\n";
879 int middle = (first_page + last_page) / 2;
880 file << std::setw(indent) << "" << "if (g0 le " << middle << ")\n";
881 generate_page_dispatch(file, indent + 2, first_page, middle);
882 file << std::setw(indent) << "" << "else\n";
883 generate_page_dispatch(file, indent + 2, middle + 1, last_page);
887 const video::frame_params & lookup_frame_params(const char * str)
890 static const struct { const char * str; bool is_ntsc; }
896 // For DVD purposes, SECAM can be treated identically to PAL.
900 for (std::size_t i = 0;
901 i != sizeof(known_strings)/sizeof(known_strings[0]);
903 if (std::strcmp(str, known_strings[i].str) == 0)
904 return known_strings[i].is_ntsc ?
905 video::ntsc_params : video::pal_params;
906 throw std::runtime_error(
907 std::string("Invalid video standard: ").append(str));
910 void print_usage(std::ostream & stream, const char * command_name)
912 stream << "Usage: " << command_name
913 << (" [gtk-options] [--video-std std-name]"
914 " [--preview] menu-url [output-dir]\n");
919 int main(int argc, char ** argv)
923 video::frame_params frame_params = video::pal_params;
924 bool preview_mode = false;
925 std::string menu_url;
926 std::string output_dir;
928 // Do initial option parsing. We have to do this before
929 // letting Gtk parse the arguments since we may need to spawn
934 if (std::strcmp(argv[argi], "--") == 0)
938 else if (std::strcmp(argv[argi], "--help") == 0)
940 print_usage(std::cout, argv[0]);
943 else if (std::strcmp(argv[argi], "--preview") == 0)
948 else if (std::strcmp(argv[argi], "--video-std") == 0)
950 if (argi + 1 == argc)
952 std::cerr << "Missing argument to --video-std\n";
953 print_usage(std::cerr, argv[0]);
956 frame_params = lookup_frame_params(argv[argi + 1]);
965 std::auto_ptr<FrameBuffer> fb;
968 // Spawn Xvfb and set env variables so that Xlib will use it
969 // Use 8 bits each for RGB components, which should translate into
970 // "enough" bits for YUV components.
971 fb.reset(new FrameBuffer(frame_params.width, frame_params.height,
973 setenv("XAUTHORITY", fb->get_x_authority().c_str(), true);
974 setenv("DISPLAY", fb->get_x_display().c_str(), true);
978 Gtk::Main kit(argc, argv);
980 // Complete option parsing with Gtk's options out of the way.
984 if (std::strcmp(argv[argi], "--") == 0)
989 else if (std::strcmp(argv[argi], "--preview") == 0)
993 else if (std::strcmp(argv[argi], "--video-std") == 0)
997 else if (argv[argi][0] == '-')
999 std::cerr << "Invalid option: " << argv[argi] << "\n";
1000 print_usage(std::cerr, argv[0]);
1001 return EXIT_FAILURE;
1009 // Look for a starting URL or filename and (except in preview
1010 // mode) an output directory after the options.
1011 if (argc - argi != (preview_mode ? 1 : 2))
1013 print_usage(std::cerr, argv[0]);
1014 return EXIT_FAILURE;
1016 if (std::strstr(argv[argi], "://"))
1018 // It appears to be an absolute URL, so use it as-is.
1019 menu_url = argv[argi];
1023 // Assume it's a filename. Resolve it to an absolute URL.
1024 std::string path(argv[argi]);
1025 if (!Glib::path_is_absolute(path))
1026 path = Glib::build_filename(Glib::get_current_dir(), path);
1027 menu_url = Glib::filename_to_uri(path);
1030 output_dir = argv[argi + 1];
1032 // Initialise Mozilla
1033 BrowserWidget::init();
1035 // Run the browser/converter
1036 WebDvdWindow window(frame_params, menu_url, output_dir);
1037 Gtk::Main::run(window);
1039 catch (std::exception & e)
1041 std::cerr << "Fatal error: " << e.what() << "\n";
1042 return EXIT_FAILURE;
1045 return EXIT_SUCCESS;