]> git.decadent.org.uk Git - videolink.git/blobdiff - webdvd.cpp
Use ffmpeg by default since it seems to work if we use pause correctly.
[videolink.git] / webdvd.cpp
index 8019007deb4fda978bc7533328dbbdcd28bfb169..f8e44005f204f24bcd80a7196e126dad7ff97c6b 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright 2005 Ben Hutchings <ben@decadentplace.org.uk>.
+// Copyright 2005-6 Ben Hutchings <ben@decadentplace.org.uk>.
 // See the file "COPYING" for licence details.
 
 #include <cassert>
 #include "dvd.hpp"
 #include "generate_dvd.hpp"
 #include "link_iterator.hpp"
+#include "null_prompt_service.hpp"
 #include "pixbufs.hpp"
 #include "style_sheets.hpp"
 #include "temp_file.hpp"
 #include "video.hpp"
 #include "x_frame_buffer.hpp"
+#include "xml_utils.hpp"
 #include "xpcom_support.hpp"
 
 using xpcom_support::check;
 
 namespace
 {
+    // We can try using any of these encoders to convert PNG to MPEG.
+    enum mpeg_encoder
+    {
+       mpeg_encoder_ffmpeg,         // ffmpeg
+       mpeg_encoder_mjpegtools_old, // mjpegtools before version 1.8
+       mpeg_encoder_mjpegtools_new  // mjpegtools from version 1.8
+    };
+
     struct rectangle
     {
        int left, top;     // inclusive
@@ -144,42 +154,16 @@ namespace
     }
 
 
-    std::string xml_escape(const std::string & str)
-    {
-       std::string result;
-       std::size_t begin = 0;
-
-       for (;;)
-       {
-           std::size_t end = str.find_first_of("\"&'<>", begin);
-           result.append(str, begin, end - begin);
-           if (end == std::string::npos)
-               return result;
-
-           const char * entity = NULL;
-           switch (str[end])
-           {
-           case '"':  entity = "&quot;"; break;
-           case '&':  entity = "&amp;";  break;
-           case '\'': entity = "&apos;"; break;
-           case '<':  entity = "&lt;";   break;
-           case '>':  entity = "&gt;";   break;
-           }
-           assert(entity);
-           result.append(entity);
-
-           begin = end + 1;
-       }
-    }
-
-    
     class webdvd_window : public Gtk::Window
     {
     public:
        webdvd_window(
            const video::frame_params & frame_params,
            const std::string & main_page_uri,
-           const std::string & output_dir);
+           const std::string & output_dir,
+           mpeg_encoder encoder);
+
+       bool is_finished() const;
 
     private:
        dvd_contents::pgc_ref add_menu(const std::string & uri);
@@ -198,6 +182,7 @@ namespace
 
        video::frame_params frame_params_;
        std::string output_dir_;
+       mpeg_encoder encoder_;
        browser_widget browser_widget_;
        nsCOMPtr<nsIStyleSheet> stylesheet_;
 
@@ -212,18 +197,23 @@ namespace
        std::auto_ptr<temp_file> background_temp_;
        struct page_state;
        std::auto_ptr<page_state> page_state_;
+
+       bool finished_;
     };
 
     webdvd_window::webdvd_window(
        const video::frame_params & frame_params,
        const std::string & main_page_uri,
-       const std::string & output_dir)
+       const std::string & output_dir,
+       mpeg_encoder encoder)
            : frame_params_(frame_params),
              output_dir_(output_dir),
+             encoder_(encoder),
              stylesheet_(load_css("file://" WEBDVD_LIB_DIR "/webdvd.css")),
              pending_window_update_(false),
              pending_req_count_(0),
-             have_tweaked_page_(false)
+             have_tweaked_page_(false),
+             finished_(false)
     {
        set_size_request(frame_params_.width, frame_params_.height);
        set_resizable(false);
@@ -237,6 +227,11 @@ namespace
        load_next_page();
     }
 
+    bool webdvd_window::is_finished() const
+    {
+       return finished_;
+    }
+
     dvd_contents::pgc_ref webdvd_window::add_menu(const std::string & uri)
     {
        dvd_contents::pgc_ref next_menu(dvd_contents::menu_pgc,
@@ -270,32 +265,30 @@ namespace
        else
        {
            Glib::ustring hostname;
-           std::string filename(Glib::filename_from_uri(uri, hostname));
+           std::string path(Glib::filename_from_uri(uri, hostname));
            // FIXME: Should check the hostname
 
-           std::string vob_list;
+           vob_list list;
 
            // Store a reference to a linked VOB file, or the contents
            // of a linked VOB list file.
-           if (filename.compare(filename.size() - 4, 4, ".vob") == 0)
+           if (path.compare(path.size() - 4, 4, ".vob") == 0)
            {
-               if (!Glib::file_test(filename, Glib::FILE_TEST_IS_REGULAR))
+               if (!Glib::file_test(path, Glib::FILE_TEST_IS_REGULAR))
                    throw std::runtime_error(
-                       filename + " is missing or not a regular file");
-               vob_list
-                   .append("<vob file='")
-                   .append(xml_escape(filename))
-                   .append("'/>\n");
+                       path + " is missing or not a regular file");
+               vob_ref ref;
+               ref.file = path;
+               list.push_back(ref);
            }
            else
            {
-               assert(filename.compare(filename.size() - 8, 8, ".voblist")
-                      == 0);
-               // TODO: Validate the file contents
-               vob_list.assign(Glib::file_get_contents(filename));
+               assert(path.compare(path.size() - 8, 8, ".voblist") == 0);
+               read_vob_list(path).swap(list);
            }
 
-           contents_.titles.push_back(dvd_contents::title(vob_list));
+           contents_.titles.resize(contents_.titles.size() + 1);
+           contents_.titles.back().swap(list);
            return next_title;
        }
     }
@@ -386,7 +379,10 @@ namespace
            try
            {
                if (!process_page())
+               {
+                   finished_ = true;
                    Gtk::Main::quit();
+               }
            }
            catch (std::exception & e)
            {
@@ -751,20 +747,45 @@ namespace
 
        {
            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()
-                          << " > "
-                          << contents_.menus[menu_num].vob_temp->get_name();
+           if (encoder_ == mpeg_encoder_ffmpeg)
+           {
+               command_stream
+                   << "ffmpeg"
+                   << " -f image2 -vcodec png -i "
+                   << background_temp_->get_name()
+                   << " -target " << frame_params_.ffmpeg_name <<  "-dvd"
+                   << " -vcodec mpeg2video -an -y /dev/stdout"
+                   << " | spumux -v0 -mdvd " << state->spumux_temp.get_name()
+                   << " > " << contents_.menus[menu_num].vob_temp->get_name();
+           }
+           else
+           {
+               assert(encoder_ == mpeg_encoder_mjpegtools_old
+                      || encoder_ == mpeg_encoder_mjpegtools_new);
+               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 ";
+               // The chroma subsampling keywords changed between
+               // versions 1.6.2 and 1.8 of mjpegtools.  There is no
+               // keyword that works with both.
+               if (encoder_ == mpeg_encoder_mjpegtools_old)
+                   command_stream << "-S420_mpeg2";
+               else
+                   command_stream << "-S420mpeg2";
+               command_stream
+                   << (" | mpeg2enc -v0 -f8 -a2 -o/dev/stdout"
+                       " | mplex -v0 -f8 -o/dev/stdout /dev/stdin"
+                       " | spumux -v0 -mdvd ")
+                   << state->spumux_temp.get_name()
+                   << " > "
+                   << contents_.menus[menu_num].vob_temp->get_name();
+           }
            std::string command(command_stream.str());
            const char * argv[] = {
                "/bin/sh", "-c", command.c_str(), 0
@@ -787,31 +808,31 @@ 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 }
+       static const char * const known_strings[] = {
+           "525",    "625",
+           "525/60", "625/50",
+           "NTSC",   "PAL",
+           "ntsc",   "pal"
        };
        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;
+           if (std::strcmp(str, known_strings[i]) == 0)
+               return (i & 1)
+                   ? video::frame_params_625
+                   : video::frame_params_525;
        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");
+       stream <<
+           "Usage: " << command_name << " [gtk-options] [--preview]\n"
+           "           [--video-std {525|525/60|NTSC|ntsc"
+           " | 625|625/50|PAL|pal}]\n"
+           "           [--encoder {mjpegtools|mjpegtools-old}]\n"
+           "           menu-url [output-dir]\n";
     }
     
     void set_browser_preferences()
@@ -849,14 +870,21 @@ namespace
 
 } // namespace
 
+void fatal_error(const std::string & message)
+{
+    std::cerr << "Fatal error: " << message << "\n";
+    Gtk::Main::quit();
+}
+
 int main(int argc, char ** argv)
 {
     try
     {
-       video::frame_params frame_params = video::pal_params;
+       video::frame_params frame_params = video::frame_params_625;
        bool preview_mode = false;
        std::string menu_url;
        std::string output_dir;
+       mpeg_encoder encoder = mpeg_encoder_ffmpeg;
 
        // Do initial option parsing.  We have to do this before
        // letting Gtk parse the arguments since we may need to spawn
@@ -928,6 +956,40 @@ int main(int argc, char ** argv)
            {
                argi += 2;
            }
+           else if (std::strcmp(argv[argi], "--save-temps") == 0)
+           {
+               temp_file::keep_all(true);
+               argi += 1;
+           }
+           else if (std::strcmp(argv[argi], "--encoder") == 0)
+           {
+               if (argi + 1 == argc)
+               {
+                   std::cerr << "Missing argument to --encoder\n";
+                   print_usage(std::cerr, argv[0]);
+                   return EXIT_FAILURE;
+               }
+               if (std::strcmp(argv[argi + 1], "ffmpeg") == 0)
+               {
+                   encoder = mpeg_encoder_ffmpeg;
+               }
+               else if (std::strcmp(argv[argi + 1], "mjpegtools-old") == 0)
+               {
+                   encoder = mpeg_encoder_mjpegtools_old;
+               }
+               else if (std::strcmp(argv[argi + 1], "mjpegtools") == 0
+                        || std::strcmp(argv[argi + 1], "mjpegtools-new") == 0)
+               {
+                   encoder = mpeg_encoder_mjpegtools_new;
+               }
+               else
+               {
+                   std::cerr << "Invalid argument to --encoder\n";
+                   print_usage(std::cerr, argv[0]);
+                   return EXIT_FAILURE;
+               }
+               argi += 2;
+           }
            else if (argv[argi][0] == '-')
            {
                std::cerr << "Invalid option: " << argv[argi] << "\n";
@@ -966,16 +1028,20 @@ int main(int argc, char ** argv)
        // Initialise Mozilla
        browser_widget::initialiser browser_init;
        set_browser_preferences();
+       if (!preview_mode)
+           null_prompt_service::install();
 
        // Run the browser/converter
-       webdvd_window window(frame_params, menu_url, output_dir);
+       webdvd_window window(frame_params, menu_url, output_dir, encoder);
        Gtk::Main::run(window);
+
+       return ((preview_mode || window.is_finished())
+               ? EXIT_SUCCESS
+               : EXIT_FAILURE);
     }
     catch (std::exception & e)
     {
        std::cerr << "Fatal error: " << e.what() << "\n";
        return EXIT_FAILURE;
     }
-
-    return EXIT_SUCCESS;
 }