demux: playlist: asx: handle common mime type for asx playlist and asf

http://gonze.com/playlists/playlist-format-survey.html#ASX

modules/demux/playlist/asx.c

@@ -134,6 +134,13 @@ static void ReadElement( xml_reader_t *p_xml_reader, char **ppsz_txt )
      */
 }
 
+static bool PeekASX( demux_t *p_demux )
+{
+    const uint8_t *p_peek;
+    return ( stream_Peek( p_demux->s, &p_peek, 12 ) == 12
+             && !memcmp( p_peek, "<asx version", 12 ) );
+}
+
 /*****************************************************************************
  * Import_ASX: main import function
  *****************************************************************************/
@@ -145,6 +152,9 @@ int Import_ASX( vlc_object_t *p_this )
     if( demux_IsPathExtension( p_demux, ".asx" ) ||
         demux_IsPathExtension( p_demux, ".wax" ) ||
         demux_IsPathExtension( p_demux, ".wvx" ) ||
+        (
+          CheckContentType( p_demux->s, "video/x-ms-asf" ) && PeekASX( p_demux )
+        ) ||
         demux_IsForced( p_demux, "asx-open" ) )
     {
         STANDARD_DEMUX_INIT_MSG( "found valid ASX playlist" );

modules/demux/playlist/m3u.c

@@ -48,7 +48,6 @@ struct demux_sys_t
 static int Demux( demux_t *p_demux);
 static void parseEXTINF( char *psz_string, char **ppsz_artist, char **ppsz_name, int *pi_duration );
 static bool ContainsURL( demux_t *p_demux );
-static bool CheckContentType( stream_t * p_stream, const char * psz_ctype );
 
 static char *GuessEncoding (const char *str)
 {
@@ -149,24 +148,6 @@ static bool ContainsURL( demux_t *p_demux )
     return false;
 }
 
-static bool CheckContentType( stream_t * p_stream, const char * psz_ctype )
-{
-    char *psz_check = stream_ContentType( p_stream );
-    if( !psz_check ) return false;
-
-    int i_len = strlen( psz_check );
-    if ( i_len == 0 )
-    {
-        free( psz_check );
-        return false;
-    }
-
-    int i_res = strncasecmp( psz_check, psz_ctype, i_len );
-    free( psz_check );
-
-    return ( i_res == 0 ) ? true : false;
-}
-
 /*****************************************************************************
  * Deactivate: frees unused data
  *****************************************************************************/

modules/demux/playlist/playlist.c

@@ -224,3 +224,29 @@ char *ProcessMRL( const char *psz_mrl, const char *psz_prefix )
 uri:
     return vlc_path2uri( psz_mrl, NULL );
 }
+
+/**
+ * Checks stream Content-Type against a known one
+ */
+bool CheckContentType( stream_t * p_stream, const char * psz_ctype )
+{
+    char *psz_check = stream_ContentType( p_stream );
+    if( !psz_check ) return false;
+
+    int i_len = strlen( psz_check );
+    if ( i_len == 0 )
+    {
+        free( psz_check );
+        return false;
+    }
+
+    /* check for Content-Type: foo-type; charset=... */
+    const char * psz_sep = index( psz_check, ';' );
+    if ( psz_sep )
+        i_len = __MIN( i_len, psz_sep - psz_check );
+
+    int i_res = strncasecmp( psz_check, psz_ctype, i_len );
+    free( psz_check );
+
+    return ( i_res == 0 ) ? true : false;
+}

modules/demux/playlist/playlist.h

@@ -81,6 +81,8 @@ void Close_ZPL ( vlc_object_t * );
 
 extern input_item_t * GetCurrentItem(demux_t *p_demux);
 
+bool CheckContentType( stream_t * p_stream, const char * psz_ctype );
+
 #define STANDARD_DEMUX_INIT_MSG( msg ) do { \
     DEMUX_INIT_COMMON();                    \
     msg_Dbg( p_demux, "%s", msg ); } while(0)