From 8649cef462226a67272edae764a3eca79c55051d Mon Sep 17 00:00:00 2001
From: Nirbheek Chauhan <nirbheek@centricular.com>
Date: Tue, 3 Apr 2018 23:54:41 +0530
Subject: [PATCH] audiolatency: Fix wave detection in buffers

-1/1000 is 0, so we were *always* detecting a buffer.
---
 gst/audiolatency/gstaudiolatency.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/gst/audiolatency/gstaudiolatency.c b/gst/audiolatency/gstaudiolatency.c
index 3a3a40680f..7e6ec42a37 100644
--- a/gst/audiolatency/gstaudiolatency.c
+++ b/gst/audiolatency/gstaudiolatency.c
@@ -335,7 +335,7 @@ buffer_has_wave (GstBuffer * buffer, GstPad * pad)
     gst_buffer_unmap (buffer, &minfo);
 
   /* Return offset in microseconds */
-  return offset / 1000;
+  return (offset > 0) ? offset / 1000 : -1;
 }
 
 static GstPadProbeReturn
@@ -406,12 +406,7 @@ gst_audiolatency_sink_chain (GstPad * pad, GstObject * parent,
   if (offset < 0)
     goto out;
 
-  pts += offset;
-  /* Only measure latency using the first buffer of each tick wave */
-  if (pts - self->recv_pts <= 950 * 1000)
-    goto out;
-
-  self->recv_pts = pts;
+  self->recv_pts = pts + offset;
   latency = (self->recv_pts - self->send_pts);
   gst_audiolatency_set_latency (self, latency);