diff -urp rtmpdump-2.3_orig/librtmp/rtmp.c rtmpdump-2.3/librtmp/rtmp.c
--- rtmpdump-2.3_orig/librtmp/rtmp.c	2010-06-30 23:58:35.000000000 +0400
+++ rtmpdump-2.3/librtmp/rtmp.c	2011-02-12 14:31:25.000000000 +0300
@@ -261,6 +261,13 @@ RTMP_Init(RTMP *r)
 }
 
 void
+RTMP_SetUserCallbacks(RTMP *r, RTMP_UserCallbacks *cb)
+{
+  r->m_user_callbacks.user_data = cb->user_data;
+  r->m_user_callbacks.metadata = cb->metadata;
+}
+
+void
 RTMP_EnableWrite(RTMP *r)
 {
   r->Link.protocol |= RTMP_FEATURE_WRITE;
@@ -2630,6 +2637,8 @@ HandleMetadata(RTMP *r, char *body, unsi
       return FALSE;
     }
 
+  if (r->m_user_callbacks.metadata)
+    r->m_user_callbacks.metadata(r->m_user_callbacks.user_data, &obj);
   AMF_Dump(&obj);
   AMFProp_GetString(AMF_GetProp(&obj, NULL, 0), &metastring);
 
@@ -3475,6 +3484,8 @@ RTMP_Close(RTMP *r)
       r->Link.rc4keyOut = NULL;
     }
 #endif
+
+  memset(&r->m_user_callbacks, 0, sizeof(RTMP_UserCallbacks));
 }
 
 int
diff -urp rtmpdump-2.3_orig/librtmp/rtmp.h rtmpdump-2.3/librtmp/rtmp.h
--- rtmpdump-2.3_orig/librtmp/rtmp.h	2010-06-30 23:58:35.000000000 +0400
+++ rtmpdump-2.3/librtmp/rtmp.h	2011-02-12 14:24:18.000000000 +0300
@@ -208,6 +208,12 @@ extern "C"
     int num;
   } RTMP_METHOD;
 
+  typedef struct RTMP_UserCallbacks
+  {
+    void *user_data;
+    void (*metadata)(void *user_data, AMFObject *obj);
+  } RTMP_UserCallbacks;
+
   typedef struct RTMP
   {
     int m_inChunkSize;
@@ -252,6 +258,7 @@ extern "C"
     RTMPPacket m_write;
     RTMPSockBuf m_sb;
     RTMP_LNK Link;
+    RTMP_UserCallbacks m_user_callbacks;
   } RTMP;
 
   int RTMP_ParseURL(const char *url, int *protocol, AVal *host,
@@ -307,6 +314,8 @@ extern "C"
   void RTMP_Free(RTMP *r);
   void RTMP_EnableWrite(RTMP *r);
 
+  void RTMP_SetUserCallbacks(RTMP *r, RTMP_UserCallbacks *cb);
+
   int RTMP_LibVersion(void);
   void RTMP_UserInterrupt(void);	/* user typed Ctrl-C */