From: Mike Brady <mikebrady@eircom.net>
Date: Wed, 9 May 2018 19:20:54 +0000 (+0100)
Subject: Change the resend error backoff to one sixteenth of a second -- now can alomst tolera... 
X-Git-Tag: 3.2RC8~2^2~38
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e7bbaf4dac383d95db8ccfb4e1848e350262700;p=thirdparty%2Fshairport-sync.git

Change the resend error backoff to one sixteenth of a second -- now can alomst tolerate a 10% failure of packets.
---

diff --git a/rtp.c b/rtp.c
index b0f9e84b..4189d165 100644
--- a/rtp.c
+++ b/rtp.c
@@ -986,7 +986,7 @@ void rtp_request_resend(seq_t first, uint32_t count, rtsp_conn_info *conn) {
     }
 #endif
     uint64_t time_of_sending_fp = get_absolute_time_in_fp();
-    uint64_t resend_error_backoff_time = (uint64_t)1 << (32 - 1); // half a second
+    uint64_t resend_error_backoff_time = (uint64_t)1 << (32 - 4); // one sixteenth of a second
     if ((conn->rtp_time_of_last_resend_request_error_fp == 0) ||
         ((time_of_sending_fp - conn->rtp_time_of_last_resend_request_error_fp) >
          resend_error_backoff_time)) {
@@ -997,7 +997,7 @@ void rtp_request_resend(seq_t first, uint32_t count, rtsp_conn_info *conn) {
           char em[1024];
           strerror_r(errno, em, sizeof(em));
           debug(1,
-                "Error %d using send-to to an audio socket: \"%s\". Backing off for 0.5 seconds.",
+                "Error %d using send-to to an audio socket: \"%s\". Backing off for 1/16th of a second.",
                 errno, em);
           conn->rtp_time_of_last_resend_request_error_fp = time_of_sending_fp;
         } else {
@@ -1005,8 +1005,8 @@ void rtp_request_resend(seq_t first, uint32_t count, rtsp_conn_info *conn) {
         }
 
       } else {
-        debug(3, "Dropping resend request packet to simulate a bad network. Backing off for 0.5 "
-                 "seconds.");
+        debug(3, "Dropping resend request packet to simulate a bad network. Backing off for 1/16th of a "
+                 "second.");
         conn->rtp_time_of_last_resend_request_error_fp = time_of_sending_fp;
       }
     } else {