From: Anthony Minessale <anthm@freeswitch.org>
Date: Fri, 7 Mar 2014 01:34:57 +0000 (+0500)
Subject: fix backwards subtraction
X-Git-Tag: v1.5.11~114
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=abb83e0b0e7e43e2a6c3e259bf53ceca96f87325;p=thirdparty%2Ffreeswitch.git

fix backwards subtraction
---

diff --git a/libs/stfu/stfu.c b/libs/stfu/stfu.c
index d83baed017..8bf8fa8bfe 100644
--- a/libs/stfu/stfu.c
+++ b/libs/stfu/stfu.c
@@ -718,8 +718,8 @@ stfu_frame_t *stfu_n_read_a_frame(stfu_instance_t *i)
         uint32_t y;
         stfu_frame_t *frame = NULL;
 
-        int32_t delay = i->last_rd_ts - i->cur_ts;
-        uint32_t need  = abs(i->last_rd_ts - i->cur_ts) / i->samples_per_packet;
+        int32_t delay = i->cur_ts - i->last_rd_ts;
+        uint32_t need  = abs(delay) / i->samples_per_packet;
 
         
         i->period_missing_count++;