decrement useage counter on hangup

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@896 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/h323/ast_h323.h

@@ -61,7 +61,8 @@
 #define AST_FORMAT_G729A	(1 << 8)
 /*! SpeeX Free Compression */
 #define AST_FORMAT_SPEEX	(1 << 9)
-
+/*! ILBC Free Codec */
+#define AST_FORMAT_ILBC         (1 << 10)
 
 /**This class describes the G.723.1 codec capability.
  */

channels/h323/chan_h323.c

@@ -464,7 +464,14 @@ static int oh323_hangup(struct ast_channel *c)
 		p->needdestroy = 1;
 	}
 
-	
+	/* Update usage counter */
+	ast_pthread_mutex_lock(&usecnt_lock);
+	usecnt--;
+	if (usecnt < 0)
+		ast_log(LOG_WARNING, "Usecnt < 0\n");
+	ast_pthread_mutex_unlock(&usecnt_lock);
+	ast_update_use_count();
+
 	ast_pthread_mutex_unlock(&p->lock);
 	return 0;
 }