commit d28e0e784f2d619c53ae16bbed220280404fabc8
author Suhas Nayak <suhas2go@gmail.com> Mon Jun 18 07:39:10 2018 +0530
committer Tim-Philipp Müller <tim@centricular.com> Wed Jul 18 16:43:17 2018 +0100
tree 9b4ee5363636f645184c9d8c2daf741d4c7214d0
parent fcc3b74b10256c0a895030e55a7100f27847b43e

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

diff --git a/ext/soundtouch/gstpitch.cc b/ext/soundtouch/gstpitch.cc
index c529bd7..281ae2b 100644
--- a/ext/soundtouch/gstpitch.cc
+++ b/ext/soundtouch/gstpitch.cc
@@ -390,10 +390,12 @@
 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;