X-Git-Url: https://git.decadent.org.uk/gitweb/?p=videolink.git;a=blobdiff_plain;f=webdvd.cpp;h=6fb547ff510c0431bfddba9adfdc5272b0f60598;hp=4d951ee9120f5502b0bec78b4aedcc92e2c16012;hb=083fe0658d0b592061ec1332706fa852c4cf13e8;hpb=8d0ade32b10e040e462b244332afad1a0961d25b diff --git a/webdvd.cpp b/webdvd.cpp index 4d951ee..6fb547f 100644 --- a/webdvd.cpp +++ b/webdvd.cpp @@ -2,6 +2,7 @@ // See the file "COPYING" for licence details. #include +#include #include #include #include @@ -9,12 +10,17 @@ #include #include #include +#include #include #include #include +#include + #include +#include +#include #include #include @@ -48,6 +54,7 @@ #include "linkiterator.hpp" #include "pixbufs.hpp" #include "stylesheets.hpp" +#include "temp_file.hpp" #include "video.hpp" #include "xpcom_support.hpp" @@ -104,6 +111,7 @@ namespace { rectangle result; + // Start with this element's bounding box nsCOMPtr box; check(ns_doc->GetBoxObjectFor(elem, getter_AddRefs(box))); int width, height; @@ -114,6 +122,7 @@ namespace result.right = result.left + width; result.bottom = result.top + height; + // Merge bounding boxes of all child elements for (ChildIterator it = ChildIterator(elem), end; it != end; ++it) { nsCOMPtr child_node(*it); @@ -133,45 +142,61 @@ namespace class WebDvdWindow : public Gtk::Window { public: - WebDvdWindow(int width, int height); - void add_page(const std::string & uri); + WebDvdWindow( + const video::frame_params & frame_params, + const std::string & main_page_uri, + const std::string & output_dir); private: + void add_page(const std::string & uri); void add_video(const std::string & uri); void load_next_page(); void on_net_state_change(const char * uri, gint flags, guint status); + bool process_page(); void save_screenshot(); void process_links(nsIPresShell * pres_shell, nsIPresContext * pres_context, nsIDOMWindow * dom_window); - void generate_dvdauthor_file(); + void generate_dvd(); enum ResourceType { page_resource, video_resource }; typedef std::pair ResourceEntry; - int width_, height_; + video::frame_params frame_params_; + std::string output_dir_; BrowserWidget browser_widget_; nsCOMPtr stylesheet_; std::queue page_queue_; std::map resource_map_; std::vector > page_links_; std::vector video_paths_; - bool loading_; + bool pending_window_update_; int pending_req_count_; - struct link_state; - std::auto_ptr link_state_; + std::auto_ptr background_temp_; + struct page_state; + std::auto_ptr page_state_; + std::vector > page_temp_files_; }; - WebDvdWindow::WebDvdWindow(int width, int height) - : width_(width), height_(height), + WebDvdWindow::WebDvdWindow( + const video::frame_params & frame_params, + const std::string & main_page_uri, + const std::string & output_dir) + : frame_params_(frame_params), + output_dir_(output_dir), stylesheet_(load_css("file://" WEBDVD_LIB_DIR "/webdvd.css")), - loading_(false), + pending_window_update_(false), pending_req_count_(0) { - set_default_size(width, height); + set_size_request(frame_params_.width, frame_params_.height); + set_resizable(false); + add(browser_widget_); browser_widget_.show(); browser_widget_.signal_net_state().connect( SigC::slot(*this, &WebDvdWindow::on_net_state_change)); + + add_page(main_page_uri); + load_next_page(); } void WebDvdWindow::add_page(const std::string & uri) @@ -181,8 +206,6 @@ namespace .second) { page_queue_.push(uri); - if (!loading_) - load_next_page(); } } @@ -193,18 +216,14 @@ namespace video_paths_.size() + 1))) .second) { - // FIXME: Should accept some slightly different URI prefixes - // (e.g. file://localhost/) and decode any URI-escaped - // characters in the path. - assert(uri.compare(0, 8, "file:///") == 0); - video_paths_.push_back(uri.substr(7)); + Glib::ustring hostname; + video_paths_.push_back(Glib::filename_from_uri(uri, hostname)); + // FIXME: Should check the hostname } } void WebDvdWindow::load_next_page() { - loading_ = true; - assert(!page_queue_.empty()); const std::string & uri = page_queue_.front(); std::cout << "loading " << uri << std::endl; @@ -212,77 +231,43 @@ namespace std::size_t page_count = page_links_.size(); resource_map_[uri].second = ++page_count; page_links_.resize(page_count); + + pending_window_update_ = true; browser_widget_.load_uri(uri); } void WebDvdWindow::on_net_state_change(const char * uri, gint flags, guint status) { - enum { - process_nothing, - process_new_page, - process_current_link - } action = process_nothing; - if (flags & GTK_MOZ_EMBED_FLAG_IS_REQUEST) { if (flags & GTK_MOZ_EMBED_FLAG_START) ++pending_req_count_; + if (flags & GTK_MOZ_EMBED_FLAG_STOP) { assert(pending_req_count_ != 0); --pending_req_count_; } - if (pending_req_count_ == 0 && link_state_.get()) - action = process_current_link; } if (flags & GTK_MOZ_EMBED_FLAG_STOP && flags & GTK_MOZ_EMBED_FLAG_IS_WINDOW) - action = process_new_page; - - if (action != process_nothing) { - assert(loading_ && !page_queue_.empty()); - assert(pending_req_count_ == 0); + // Check whether the load was successful, ignoring this + // pseudo-error. + if (status != NS_IMAGELIB_ERROR_LOAD_ABORTED) + check(status); + pending_window_update_ = false; + } + + if (pending_req_count_ == 0 && !pending_window_update_) + { try { - // Check whether the load was successful, ignoring this - // pseudo-error. - if (status != NS_IMAGELIB_ERROR_LOAD_ABORTED) - check(status); - - nsCOMPtr browser( - browser_widget_.get_browser()); - nsCOMPtr doc_shell(do_GetInterface(browser)); - assert(doc_shell); - nsCOMPtr pres_shell; - check(doc_shell->GetPresShell(getter_AddRefs(pres_shell))); - nsCOMPtr pres_context; - check(doc_shell->GetPresContext( - getter_AddRefs(pres_context))); - nsCOMPtr dom_window; - check(browser->GetContentDOMWindow( - getter_AddRefs(dom_window))); - - if (action == process_new_page) - { - apply_style_sheet(stylesheet_, pres_shell); - save_screenshot(); - } - process_links(pres_shell, pres_context, dom_window); - if (!link_state_.get()) - { - page_queue_.pop(); - if (page_queue_.empty()) - { - generate_dvdauthor_file(); - Gtk::Main::quit(); - } - else - load_next_page(); - } + if (!process_page()) + Gtk::Main::quit(); } catch (std::exception & e) { @@ -296,26 +281,100 @@ namespace } } + bool WebDvdWindow::process_page() + { + assert(!page_queue_.empty()); + + nsCOMPtr browser(browser_widget_.get_browser()); + nsCOMPtr doc_shell(do_GetInterface(browser)); + assert(doc_shell); + nsCOMPtr pres_shell; + check(doc_shell->GetPresShell(getter_AddRefs(pres_shell))); + nsCOMPtr pres_context; + check(doc_shell->GetPresContext(getter_AddRefs(pres_context))); + nsCOMPtr dom_window; + check(browser->GetContentDOMWindow(getter_AddRefs(dom_window))); + + if (output_dir_.empty()) + { + // In preview mode, just apply the stylesheet and let the + // user select links. + apply_style_sheet(stylesheet_, pres_shell); + } + else + { + // If we haven't already started work on this page, apply + // the stylesheet and save a screenshot of its normal + // appearance. + if (!page_state_.get()) + { + apply_style_sheet(stylesheet_, pres_shell); + save_screenshot(); + } + + // Start or continue processing links. + process_links(pres_shell, pres_context, dom_window); + + // If we've finished work on the links, move on to the + // next page, if any, or else generate the DVD filesystem. + if (!page_state_.get()) + { + page_queue_.pop(); + if (page_queue_.empty()) + { + generate_dvd(); + return false; + } + else + { + load_next_page(); + } + } + } + + return true; + } + void WebDvdWindow::save_screenshot() { - char filename[25]; - std::sprintf(filename, "page_%06d_back.png", page_links_.size()); Glib::RefPtr window(get_window()); assert(window); window->process_updates(true); - std::cout << "saving " << filename << std::endl; + + background_temp_.reset(new temp_file("webdvd-back-")); + background_temp_->close(); + std::cout << "saving " << background_temp_->get_name() << std::endl; Gdk::Pixbuf::create(Glib::RefPtr(window), window->get_colormap(), - 0, 0, 0, 0, width_, height_) - ->save(filename, "png"); + 0, 0, 0, 0, + frame_params_.width, frame_params_.height) + ->save(background_temp_->get_name(), "png"); } - struct WebDvdWindow::link_state + struct WebDvdWindow::page_state { + page_state(nsIDOMDocument * doc, int width, int height) + : diff_pixbuf(Gdk::Pixbuf::create( + Gdk::COLORSPACE_RGB, + true, 8, // has_alpha, bits_per_sample + width, height)), + spumux_temp("webdvd-spumux-"), + links_temp("webdvd-links-"), + link_num(0), + links_it(doc), + link_changing(false) + { + spumux_temp.close(); + links_temp.close(); + } + Glib::RefPtr diff_pixbuf; + temp_file spumux_temp; std::ofstream spumux_file; + temp_file links_temp; + int link_num; LinkIterator links_it, links_end; @@ -347,37 +406,25 @@ namespace check(doc_view->GetDefaultView(getter_AddRefs(view))); // Set up or recover our iteration state. - std::auto_ptr state(link_state_); + std::auto_ptr state(page_state_); if (!state.get()) { - state.reset(new link_state); - - state->diff_pixbuf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, - true, // has_alpha - 8, // bits_per_sample - width_, height_); - - char spumux_filename[20]; - std::sprintf(spumux_filename, - "page_%06d.spumux", page_links_.size()); - state->spumux_file.open(spumux_filename); + state.reset( + new page_state( + basic_doc, frame_params_.width, frame_params_.height)); + + state->spumux_file.open(state->spumux_temp.get_name().c_str()); state->spumux_file << "\n" " \n" " \n"; - - state->link_num = 0; - state->links_it = LinkIterator(basic_doc); - state->link_changing = false; + " highlight='" << state->links_temp.get_name() << "'\n" + " select='" << state->links_temp.get_name() << "'>\n"; } - - rectangle window_rect = { 0, 0, width_, height_ }; + + rectangle window_rect = { + 0, 0, frame_params_.width, frame_params_.height + }; for (/* no initialisation */; state->links_it != state->links_end; @@ -501,7 +548,7 @@ namespace if (pending_req_count_ > 0) { state->link_changing = true; - link_state_ = state; + page_state_ = state; return; } } @@ -539,23 +586,65 @@ namespace quantise_rgba_pixbuf(state->diff_pixbuf, dvd::button_n_colours); - char filename[25]; - std::sprintf(filename, "page_%06d_links.png", page_links_.size()); - std::cout << "saving " << filename << std::endl; - state->diff_pixbuf->save(filename, "png"); + std::cout << "saving " << state->links_temp.get_name() + << std::endl; + state->diff_pixbuf->save(state->links_temp.get_name(), "png"); state->spumux_file << " \n" " \n" "\n"; + + state->spumux_file.close(); + + // TODO: if (!state->spumux_file) throw ... + + { + boost::shared_ptr vob_temp( + new temp_file("webdvd-vob-")); + std::ostringstream command_stream; + command_stream << "pngtopnm " + << background_temp_->get_name() + << " | ppmtoy4m -v0 -n1 -F" + << frame_params_.rate_numer + << ":" << frame_params_.rate_denom + << " -A" << frame_params_.pixel_ratio_width + << ":" << frame_params_.pixel_ratio_height + << (" -Ip -S420_mpeg2" + " | mpeg2enc -v0 -f8 -a2 -o/dev/stdout" + " | mplex -v0 -f8 -o/dev/stdout /dev/stdin" + " | spumux -v0 -mdvd ") + << state->spumux_temp.get_name() + << " > " << vob_temp->get_name(); + std::string command(command_stream.str()); + const char * argv[] = { + "/bin/sh", "-c", command.c_str(), 0 + }; + std::cout << "running " << argv[2] << std::endl; + int command_result; + Glib::spawn_sync(".", + Glib::ArrayHandle( + argv, sizeof(argv)/sizeof(argv[0]), + Glib::OWNERSHIP_NONE), + Glib::SPAWN_STDOUT_TO_DEV_NULL, + SigC::Slot0(), + 0, 0, + &command_result); + if (command_result != 0) + throw std::runtime_error("spumux pipeline failed"); + + page_temp_files_.push_back(vob_temp); + } } void generate_page_dispatch(std::ostream &, int indent, int first_page, int last_page); - void WebDvdWindow::generate_dvdauthor_file() + void WebDvdWindow::generate_dvd() { - std::ofstream file("webdvd.dvdauthor"); + temp_file temp("webdvd-dvdauthor-"); + temp.close(); + std::ofstream file(temp.get_name().c_str()); // We generate code that uses registers in the following way: // @@ -649,9 +738,8 @@ namespace // appropriate link/button. " g0 = 0; s8 = g1 & " << link_mask << ";\n" " \n" - " \n"; + " \n"; for (std::size_t link_num = 1; link_num <= page_links.size(); @@ -717,6 +805,29 @@ namespace file << "\n"; + + file.close(); + + { + const char * argv[] = { + "dvdauthor", + "-o", output_dir_.c_str(), + "-x", temp.get_name().c_str(), + 0 + }; + int command_result; + Glib::spawn_sync(".", + Glib::ArrayHandle( + argv, sizeof(argv)/sizeof(argv[0]), + Glib::OWNERSHIP_NONE), + Glib::SPAWN_SEARCH_PATH + | Glib::SPAWN_STDOUT_TO_DEV_NULL, + SigC::Slot0(), + 0, 0, + &command_result); + if (command_result != 0) + throw std::runtime_error("dvdauthor failed"); + } } void generate_page_dispatch(std::ostream & file, int indent, @@ -755,38 +866,156 @@ namespace } } + const video::frame_params & lookup_frame_params(const char * str) + { + assert(str); + static const struct { const char * str; bool is_ntsc; } + known_strings[] = { + { "NTSC", true }, + { "ntsc", true }, + { "PAL", false }, + { "pal", false }, + // For DVD purposes, SECAM can be treated identically to PAL. + { "SECAM", false }, + { "secam", false } + }; + for (std::size_t i = 0; + i != sizeof(known_strings)/sizeof(known_strings[0]); + ++i) + if (std::strcmp(str, known_strings[i].str) == 0) + return known_strings[i].is_ntsc ? + video::ntsc_params : video::pal_params; + throw std::runtime_error( + std::string("Invalid video standard: ").append(str)); + } + + void print_usage(std::ostream & stream, const char * command_name) + { + stream << "Usage: " << command_name + << (" [gtk-options] [--video-std std-name]" + " [--preview] menu-url [output-dir]\n"); + } + } // namespace int main(int argc, char ** argv) { - // Get dimensions - int width = video::pal_oscan_width, height = video::pal_oscan_height; - for (int i = 1; i < argc - 1; ++i) - if (std::strcmp(argv[i], "-geometry") == 0) + try + { + video::frame_params frame_params = video::pal_params; + bool preview_mode = false; + std::string menu_url; + std::string output_dir; + + // Do initial option parsing. We have to do this before + // letting Gtk parse the arguments since we may need to spawn + // Xvfb first. + int argi = 1; + while (argi != argc) { - std::sscanf(argv[i + 1], "%dx%d", &width, &height); - break; + if (std::strcmp(argv[argi], "--") == 0) + { + break; + } + else if (std::strcmp(argv[argi], "--help") == 0) + { + print_usage(std::cout, argv[0]); + return EXIT_SUCCESS; + } + else if (std::strcmp(argv[argi], "--preview") == 0) + { + preview_mode = true; + argi += 1; + } + else if (std::strcmp(argv[argi], "--video-std") == 0) + { + if (argi + 1 == argc) + { + std::cerr << "Missing argument to --video-std\n"; + print_usage(std::cerr, argv[0]); + return EXIT_FAILURE; + } + frame_params = lookup_frame_params(argv[argi + 1]); + argi += 2; + } + else + { + argi += 1; + } } - // A depth of 24 results in 8 bits each for RGB components, which - // translates into "enough" bits for YUV components. - const int depth = 24; - try - { - // Spawn Xvfb and set env variables so that Xlib will use it - FrameBuffer fb(width, height, depth); - setenv("XAUTHORITY", fb.get_x_authority().c_str(), true); - setenv("DISPLAY", fb.get_x_display().c_str(), true); + std::auto_ptr fb; + if (!preview_mode) + { + // Spawn Xvfb and set env variables so that Xlib will use it + // Use 8 bits each for RGB components, which should translate into + // "enough" bits for YUV components. + fb.reset(new FrameBuffer(frame_params.width, frame_params.height, + 3 * 8)); + setenv("XAUTHORITY", fb->get_x_authority().c_str(), true); + setenv("DISPLAY", fb->get_x_display().c_str(), true); + } - // Initialise Gtk and Mozilla + // Initialise Gtk Gtk::Main kit(argc, argv); + + // Complete option parsing with Gtk's options out of the way. + argi = 1; + while (argi != argc) + { + if (std::strcmp(argv[argi], "--") == 0) + { + argi += 1; + break; + } + else if (std::strcmp(argv[argi], "--preview") == 0) + { + argi += 1; + } + else if (std::strcmp(argv[argi], "--video-std") == 0) + { + argi += 2; + } + else if (argv[argi][0] == '-') + { + std::cerr << "Invalid option: " << argv[argi] << "\n"; + print_usage(std::cerr, argv[0]); + return EXIT_FAILURE; + } + else + { + break; + } + } + + // Look for a starting URL or filename and (except in preview + // mode) an output directory after the options. + if (argc - argi != (preview_mode ? 1 : 2)) + { + print_usage(std::cerr, argv[0]); + return EXIT_FAILURE; + } + if (std::strstr(argv[argi], "://")) + { + // It appears to be an absolute URL, so use it as-is. + menu_url = argv[argi]; + } + else + { + // Assume it's a filename. Resolve it to an absolute URL. + std::string path(argv[argi]); + if (!Glib::path_is_absolute(path)) + path = Glib::build_filename(Glib::get_current_dir(), path); + menu_url = Glib::filename_to_uri(path); + } + if (!preview_mode) + output_dir = argv[argi + 1]; + + // Initialise Mozilla BrowserWidget::init(); - WebDvdWindow window(width, height); - for (int argi = 1; argi < argc; ++argi) - window.add_page(argv[argi]); - if (argc < 2) - window.add_page("about:"); + // Run the browser/converter + WebDvdWindow window(frame_params, menu_url, output_dir); Gtk::Main::run(window); } catch (std::exception & e)