Merged revisions 337541 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r337541 | irroot | 2011-09-22 13:39:49 +0200 (Thu, 22 Sep 2011) | 8 lines
  
  Add warned to ast_srtp to prevent errors on each frame from libsrtp
  
  The first 9 frames are not reported as some devices dont use srtp 
  from first frame these are suppresed.
  
  the warning is then output only once every 100 frames.
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/10@337542 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_srtp.c

@@ -54,6 +54,7 @@ struct ast_srtp {
 	srtp_t session;
 	const struct ast_srtp_cb *cb;
 	void *data;
+	int warned;
 	unsigned char buf[8192 + AST_FRIENDLY_OFFSET];
 };
 
@@ -179,6 +180,8 @@ static struct ast_srtp *res_srtp_new(void)
 		ast_free(srtp);
 		return NULL;
 	}
+	
+	srtp->warned = 1;
 
 	return srtp;
 }
@@ -382,7 +385,12 @@ static int ast_srtp_unprotect(struct ast_srtp *srtp, void *buf, int *len, int rt
 	}
 
 	if (res != err_status_ok && res != err_status_replay_fail ) {
-		ast_log(LOG_WARNING, "SRTP unprotect: %s\n", srtp_errstr(res));
+		if ((srtp->warned >= 10) && !((srtp->warned - 10) % 100)) {
+			ast_log(LOG_WARNING, "SRTP unprotect: %s %d\n", srtp_errstr(res), srtp->warned);
+			srtp->warned = 11;
+		} else {
+			srtp->warned++;
+		}
 		errno = EAGAIN;
 		return -1;
 	}