From 359d9c9221b327c7277c23734ec4d337d0cf3323 Mon Sep 17 00:00:00 2001
From: Patrick Linstruth <patrick@deltecent.com>
Date: Tue, 9 Oct 2018 09:27:20 -0700
Subject: [PATCH] Eliminate INVALID_FUNC errors by not calling
 HPI_OutStreamSetTimeScale() on adapters that do not support this function

---
 rdhpi/rdhpiplaystream.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/rdhpi/rdhpiplaystream.cpp b/rdhpi/rdhpiplaystream.cpp
index 6deadf0c..596af112 100644
--- a/rdhpi/rdhpiplaystream.cpp
+++ b/rdhpi/rdhpiplaystream.cpp
@@ -413,9 +413,11 @@ bool RDHPIPlayStream::play()
     return false;
   }
   if((!playing)&&(!is_paused)) {
-    LogHpi(HPI_OutStreamSetTimeScale(NULL,hpi_stream,
+    if(sound_card->haveTimescaling(card_number)) {
+      LogHpi(HPI_OutStreamSetTimeScale(NULL,hpi_stream,
 			(uint16_t)((RD_TIMESCALE_DIVISOR/(double)play_speed)*
 				   HPI_OSTREAM_TIMESCALE_UNITS)),__LINE__);
+    }
     if(LogHpi(HPI_OutStreamGetInfoEx(NULL,hpi_stream,
 				     &state,&buffer_size,&data_to_play,
 				     &samples_played,&reserved),__LINE__)!=0) {