1 files changed, 3 insertions, 0 deletions
diff --git a/common.h b/common.h
index 41c43b1..58a9a3e 100644
--- a/common.h
+++ b/common.h
@@ -2,6 +2,7 @@
 #define foocommonh
 
 #include "sydney.h"
+#include "mutex.h"
 
 #define _META_NAMES_MAX 9
 
@@ -55,6 +56,8 @@ struct sa_stream {
 
     void *meta_data[_META_NAMES_MAX];
     size_t meta_data_size[_META_NAMES_MAX];
+
+    sa_mutex_t *mutex;
 };
 
 size_t get_pcm_sample_size(sa_pcm_format_t f);