playsink: audio convert bin need not be unconditionally present

... so avoid NULL manipulation when setting up chain again
(e.g. after having partially gone down to READY in native audio flag
configuration).

diff --git a/gst/playback/gstplaysink.c b/gst/playback/gstplaysink.c
index 413c5b5..8757e2b 100644 (file)
--- a/gst/playback/gstplaysink.c
+++ b/gst/playback/gstplaysink.c
@@ -2297,8 +2297,10 @@ setup_audio_chain (GstPlaySink * playsink, gboolean raw)
   GstElement *elem;
   GstPlayAudioChain *chain;
   GstStateChangeReturn ret;
+  GstPlaySinkAudioConvert *conv;
 
   chain = playsink->audiochain;
+  conv = GST_PLAY_SINK_AUDIO_CONVERT_CAST (chain->conv);
 
   chain->chain.raw = raw;
 
@@ -2347,10 +2349,7 @@ setup_audio_chain (GstPlaySink * playsink, gboolean raw)
     }
 
     g_object_set (chain->conv, "use-volume", FALSE, NULL);
-  } else {
-    GstPlaySinkAudioConvert *conv =
-        GST_PLAY_SINK_AUDIO_CONVERT_CAST (chain->conv);
-
+  } else if (conv) {
     /* no volume, we need to add a volume element when we can */
     g_object_set (chain->conv, "use-volume",
         ! !(playsink->flags & GST_PLAY_FLAG_SOFT_VOLUME), NULL);