libvlc_media_player: create the aout when first setting audio options

If not setting any audio options, the aout will be created by the decoder
thread.

This avoids to create an audio output that will be destroyed if you change it
with libvlc_audio_output_set.

lib/audio.c

@@ -51,7 +51,17 @@ static audio_output_t *GetAOut( libvlc_media_player_t *mp )
 
     audio_output_t *p_aout = input_resource_HoldAout( mp->input.p_resource );
     if( p_aout == NULL )
-        libvlc_printerr( "No active audio output" );
+    {
+        p_aout = input_resource_GetAout( mp->input.p_resource );
+        if( p_aout != NULL )
+        {
+            input_resource_PutAout( mp->input.p_resource, p_aout );
+            p_aout = input_resource_HoldAout( mp->input.p_resource );
+        }
+        else
+            libvlc_printerr( "No active audio output" );
+    }
+
     return p_aout;
 }
 
@@ -133,11 +143,6 @@ int libvlc_audio_output_set( libvlc_media_player_t *mp, const char *psz_name )
     /* Forget the existing audio output */
     input_resource_ResetAout(mp->input.p_resource);
 
-    /* Create a new audio output */
-    audio_output_t *aout = input_resource_GetAout(mp->input.p_resource);
-    if( aout != NULL )
-        input_resource_PutAout(mp->input.p_resource, aout);
-
     return 0;
 }
 

lib/media_player.c

@@ -595,10 +595,6 @@ libvlc_media_player_new( libvlc_instance_t *instance )
         vlc_object_release(mp);
         return NULL;
     }
-    audio_output_t *aout = input_resource_GetAout(mp->input.p_resource);
-    if( aout != NULL )
-        input_resource_PutAout(mp->input.p_resource, aout);
-
     vlc_mutex_init (&mp->input.lock);
     mp->i_refcount = 1;
     mp->p_event_manager = libvlc_event_manager_new(mp, instance);