From 5dc7bd1145eaa059588434cc95b2133e4221e380 Mon Sep 17 00:00:00 2001
From: Stefan Westerfeld <stefan@space.twc.de>
Date: Wed, 10 Apr 2024 14:59:32 +0200
Subject: [PATCH] LIB: LiveDecoderSource: make set_portamento_freq pure virtual

Every source should implement it.

Signed-off-by: Stefan Westerfeld <stefan@space.twc.de>
---
 lib/smlivedecodersource.hh | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/lib/smlivedecodersource.hh b/lib/smlivedecodersource.hh
index df1dbccc..44832fd5 100644
--- a/lib/smlivedecodersource.hh
+++ b/lib/smlivedecodersource.hh
@@ -14,11 +14,7 @@ public:
   virtual void retrigger (int channel, float freq, int midi_velocity) = 0;
   virtual Audio *audio() = 0;
   virtual bool rt_audio_block (size_t index, RTAudioBlock& rt_audio_block) = 0;
-  virtual void
-  set_portamento_freq (float freq)
-  {
-    /* should be reimplemented by non-trivial sources */
-  }
+  virtual void set_portamento_freq (float freq) = 0;
   virtual ~LiveDecoderSource();
 };