Index: modules/gui/wxwidgets/dialogs.cpp
===================================================================
--- modules/gui/wxwidgets/dialogs.cpp	(revision 12474)
+++ modules/gui/wxwidgets/dialogs.cpp	(working copy)
@@ -24,6 +24,11 @@
/*****************************************************************************
  * Preamble
  
*****************************************************************************/
+
+#ifdef WIN32
+#pragma warning(disable : 4786)
+#endif
+
#include <stdlib.h>                                      /* malloc(), free() 
*/
#include <errno.h>                                                 /* ENOMEM 
*/
#include <string.h>                                            /* strerror() 
*/
@@ -38,6 +43,186 @@
/* include the icon graphic */
#include "../../../share/vlc32x32.xpm"

+//VLC_EXPORT(int, intf_filetypes_get_num_types, ());
+//VLC_EXPORT(int, intf_filetypes_get_type_label, (char* buffer, int 
buffer_size, int type));
+//VLC_EXPORT(int, intf_filetypes_get_num_subtypes, (int type));
+//VLC_EXPORT(int, intf_filetypes_get_subtype_label, (char* buffer, int 
buffer_size, int type, int index));
+//VLC_EXPORT(int, intf_filetypes_get_subtype_extension, (char* buffer, int 
buffer_size, int type, int index));
+
+/*****************************************************************************/
+
+struct vlc_filetype_filter {
+  const char* name; // e.g. name = "Playlist Files"
+  const char* extensions[30];
+  // e.g. extensions[0] = "*.m3u", extensions[1] = ".pls", extensions[2] = 
".asx"
+  int dummy;
+};
+
+static struct vlc_filetype_filter s_filetype_filter_list[4] = {
+    {"Video Files",
+        {
+        ".asf",
+        ".avi",
+        ".divx",
+        ".dv",
+        ".m1v",
+        ".m2v",
+        ".mkv",
+        ".mow",
+        ".mp4",
+        ".mpeg",
+        ".mpeg1",
+        ".mpeg2",
+        ".mpeg4",
+        ".mpg",
+        ".ogm",
+        ".vob",
+        ".wmv",
+        ""
+        },
+        0,
+    },
+    {"Audio Files",
+        {
+        ".a52",
+        ".aac",
+        ".ac3",
+        ".dts",
+        ".flac",
+        ".mka",
+        ".mp1",
+        ".mp2",
+        ".mp3",
+        ".ogg",
+        ".spx",
+        ".wav",
+        ".wma",
+        ""
+        },
+        0,
+    },
+    {"Playlist Files", {".m3u", ".pls", ".asx", ""}, 0},
+    {"Other Files", {".bin", ".cue", ".vlc", ""},    0},
+};
+
+/*****************************************************************************/
+
+int intf_filetypes_get_num_types()
+{
+    return sizeof(s_filetype_filter_list) / 
sizeof(*s_filetype_filter_list);
+}
+
+int intf_filetypes_get_type_label(char* buffer, int buffer_size, int type)
+{
+    if (buffer == NULL || !(buffer_size > 0) ) {
+        return 0;
+    }
+
+    strncpy(buffer, s_filetype_filter_list[type].name, buffer_size);
+    return 1;
+}
+
+int intf_filetypes_get_num_subtypes(int type)
+{
+    int total;
+    int index;
+
+    if ( type < 0 || type >= intf_filetypes_get_num_types()) {
+        return 0;
+    }
+
+    total = sizeof(s_filetype_filter_list[type].extensions)
+          / sizeof(*s_filetype_filter_list[type].extensions);
+
+    for (index = 0; index < total; index++)
+    {
+      if (strlen(s_filetype_filter_list[type].extensions[index]) == 0) {
+        return index;
+      }
+    }
+
+    return 0;
+}
+
+int intf_filetypes_get_subtype_label(char* buffer, int buffer_size, int 
type, int index)
+{
+    if (buffer == NULL || !(buffer_size > 0) ) {
+        return 0;
+    }
+
+    strncpy(buffer, s_filetype_filter_list[type].name, buffer_size);
+    return 1;
+}
+
+int intf_filetypes_get_subtype_extension(char* buffer, int buffer_size, int 
type, int index)
+{
+    if (buffer == NULL || !(buffer_size > 0) ) {
+        return 0;
+    }
+
+    if ( type < 0 || type >= intf_filetypes_get_num_types()) {
+        return 0;
+    }
+
+    if ( index < 0 || index >= intf_filetypes_get_num_subtypes(type)) {
+        return 0;
+    }
+
+    strncpy(buffer, s_filetype_filter_list[type].extensions[index], 
buffer_size);
+    return 1;
+}
+
+/*****************************************************************************/
+
+void intf_generate_filetype_filter(char* filter, int filter_size)
+{
+    int type;
+    int index;
+
+    if (filter_size < 2048) {
+        return;
+    }
+
+    sprintf (filter, "All Files (*.*)|*.*|");
+
+    int num_types = intf_filetypes_get_num_types();
+    for (type = 0; type < num_types; type++)
+    {
+        char filetype_label[1024] = {0};
+        char filetype_extension[20] = {0};
+        int num_subtypes = intf_filetypes_get_num_subtypes(type);
+
+        intf_filetypes_get_type_label(filetype_label, 
sizeof(filetype_label), type);
+
+        strcat(filter, filetype_label);
+        strcat(filter, " (");
+
+        for (index = 0; index < num_subtypes; index++) {
+            intf_filetypes_get_subtype_extension(filetype_extension, 
sizeof(filetype_extension), type, index);
+            strcat(filter, "*");
+            strcat(filter, filetype_extension);
+            if (index < num_subtypes - 1) {
+                strcat(filter, ";");
+            }
+        }
+
+        sprintf (filter + strlen(filter), ")|");
+        for (index = 0; index < num_subtypes; index++) {
+            intf_filetypes_get_subtype_extension(filetype_extension, 
sizeof(filetype_extension), type, index);
+            strcat(filter, "*");
+            strcat(filter, filetype_extension);
+            if (index < num_subtypes - 1) {
+                strcat(filter, ";");
+            }
+        }
+        strcat(filter, "|");
+   }
+
+   strcat(filter, "|");
+}
+
+/*****************************************************************************/
+
/* Dialogs Provider */
class DialogsProvider: public wxFrame
{
@@ -392,8 +577,13 @@
     }

     if( p_file_dialog == NULL )
+    {
+        char filter[2048] = {0};
+        intf_generate_filetype_filter(filter, sizeof(filter));
+
         p_file_dialog = new wxFileDialog( NULL, wxU(_("Open File")),
-            wxT(""), wxT(""), wxT("*"), wxOPEN | wxMULTIPLE );
+            wxT(""), wxT(""), wxT(filter), wxOPEN | wxMULTIPLE );
+    }

     if( p_file_dialog && p_file_dialog->ShowModal() == wxID_OK )
     {