Add .sdp to reconized extensions

Inspired by Marian Durkovic's commit [80f9f873]
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

extras/package/win32/vlc.win32.nsi.in

@@ -263,6 +263,7 @@ FunctionEnd
   !insertmacro ${_action} ".ifo"
   !insertmacro ${_action} ".m3u"
   !insertmacro ${_action} ".pls"
+  !insertmacro ${_action} ".sdp"
   !insertmacro ${_action} ".vlc"
   !insertmacro ${_action} ".xspf"
 !macroend

include/vlc_interface.h

@@ -179,7 +179,7 @@ typedef enum vlc_dialog {
                          "*.ogg;*.ogm;*.ogv;*.ogx;*.ps;" \
                          "*.rec;*.rm;*.rmvb;*.tod;*.ts;*.vob;*.wmv"
 
-#define EXTENSIONS_PLAYLIST "*.asx;*.b4s;*.ifo;*.m3u;*.pls;*.ram;*.rar;*.vlc;*.xspf;*.zip"
+#define EXTENSIONS_PLAYLIST "*.asx;*.b4s;*.ifo;*.m3u;*.pls;*.ram;*.rar;*.sdp;*.vlc;*.xspf;*.zip"
 
 #define EXTENSIONS_MEDIA EXTENSIONS_VIDEO ";" EXTENSIONS_AUDIO ";" \
                           EXTENSIONS_PLAYLIST

modules/gui/qt4/components/simple_preferences.cpp

@@ -931,8 +931,8 @@ void SPrefsPanel::assoDialog()
                             : Qt::Unchecked );
 
     i_temp = 0;
-    aTo( ".asx" ); aTo( ".b4s" ); aTo( ".ifo" ); aTo( ".m3u" ); aTo( ".pls" ); aTo( ".vlc" );
-    aTo( ".xspf" );
+    aTo( ".asx" ); aTo( ".b4s" ); aTo( ".ifo" ); aTo( ".m3u" ); aTo( ".pls" );
+    aTo( ".sdp" ); aTo( ".vlc" ); aTo( ".xspf" );
     otherType->setCheckState( 0, ( i_temp > 0 ) ?
                               ( ( i_temp == audioType->childCount() ) ?
                                Qt::Checked : Qt::PartiallyChecked )