From 68052a7bc3643ec7b918755492d342bfafadf4ee Mon Sep 17 00:00:00 2001
From: Suhas Nayak <suhas2go@gmail.com>
Date: Mon, 18 Jun 2018 07:39:10 +0530
Subject: [PATCH] pitch: Flush only if there are unprocessed samples

Otherwise we end up trying to flush before
sample rate of SoundTouch is set

https://bugzilla.gnome.org/show_bug.cgi?id=796613
---
 ext/soundtouch/gstpitch.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/ext/soundtouch/gstpitch.cc b/ext/soundtouch/gstpitch.cc
index c529bd7c2c..281ae2b966 100644
--- a/ext/soundtouch/gstpitch.cc
+++ b/ext/soundtouch/gstpitch.cc
@@ -390,10 +390,12 @@ static GstFlowReturn
 gst_pitch_flush_buffer (GstPitch * pitch, gboolean send)
 {
   GstBuffer *buffer;
+  
+  if (pitch->priv->st->numUnprocessedSamples() != 0) {
+    GST_DEBUG_OBJECT (pitch, "flushing buffer");
+    pitch->priv->st->flush ();   
+  }
 
-  GST_DEBUG_OBJECT (pitch, "flushing buffer");
-
-  pitch->priv->st->flush ();
   if (!send)
     return GST_FLOW_OK;