jack: use jack type for the callback

Jack headers have a typedef for the shutdown callback as well.

diff --git a/ext/jack/gstjackaudioclient.c b/ext/jack/gstjackaudioclient.c
index 2bb3555..c5c8dc8 100644 (file)
--- a/ext/jack/gstjackaudioclient.c
+++ b/ext/jack/gstjackaudioclient.c
@@ -66,7 +66,7 @@ struct _GstJackAudioClient
   gboolean active;
   gboolean deactivate;
 
-  void (*shutdown) (void *arg);
+  JackShutdownCallback shutdown;
   JackProcessCallback process;
   JackBufferSizeCallback buffer_size;
   JackSampleRateCallback sample_rate;