stream_filter: separate hard-coded "record" stream filter insertion

src/input/input.c

@@ -2313,10 +2313,12 @@ static int InputSourceInit( input_thread_t *p_input,
 
         char *psz_stream_filter = var_GetNonEmptyString( p_input,
                                                          "stream-filter" );
-        p_stream = stream_FilterChainNew( p_stream, psz_stream_filter,
-                               var_GetBool( p_input, "input-record-native" ) );
+        p_stream = stream_FilterChainNew( p_stream, psz_stream_filter );
         free( psz_stream_filter );
 
+        if( var_GetBool( p_input, "input-record-native" ) )
+            p_stream = stream_FilterChainNew( p_stream, "record" );
+
         if( !p_input->b_preparsing )
         {
             bool b;

src/input/stream.h

@@ -55,14 +55,11 @@ stream_t *stream_FilterNew( stream_t *p_source,
 stream_t *stream_FilterAutoNew( stream_t *source ) VLC_USED;
 
 /**
- * This function creates a chain of filters:
- * - optional user filters (configured by psz_chain) are inserted.
- * - an optional record filter is inserted if b_record is true.
+ * This function creates a chain of filters according to the colon-separated
+ * list.
  *
  * You must release the returned value using stream_Delete unless it is used as a
  * source to another filter.
  */
-stream_t *stream_FilterChainNew( stream_t *p_source,
-                                 const char *psz_chain,
-                                 bool b_record );
+stream_t *stream_FilterChainNew( stream_t *p_source, const char *psz_chain );
 #endif

src/input/stream_filter.c

@@ -88,12 +88,13 @@ stream_t *stream_FilterAutoNew( stream_t *p_source )
     return p_source;
 }
 
-stream_t *stream_FilterChainNew( stream_t *p_source,
-                                 const char *psz_chain,
-                                 bool b_record )
+stream_t *stream_FilterChainNew( stream_t *p_source, const char *psz_chain )
 {
+    if( psz_chain == NULL )
+        return p_source;
+
     /* Add user stream filter */
-    char *psz_tmp = psz_chain ? strdup( psz_chain ) : NULL;
+    char *psz_tmp = strdup( psz_chain );
     char *psz = psz_tmp;
     while( psz && *psz )
     {
@@ -113,13 +114,6 @@ stream_t *stream_FilterChainNew( stream_t *p_source,
     }
     free( psz_tmp );
 
-    /* Add record filter if useful */
-    if( b_record )
-    {
-        stream_t *p_filter = stream_FilterNew( p_source, "record" );
-        if( p_filter )
-            p_source = p_filter;
-    }
     return p_source;
 }