# HG changeset patch
# User Chris Cannam
# Date 1570797654 -3600
# Node ID ce698f8d0831572e9dcbebd1672a3bbbe9e21434
# Parent  8e9702c0b9c7df2ab241845711d867ae6c27cf0c
Avoid floating-point exception when stopping after models deleted

diff -r 8e9702c0b9c7 -r ce698f8d0831 audio/AudioCallbackPlaySource.cpp
--- a/audio/AudioCallbackPlaySource.cpp	Fri Oct 04 13:52:48 2019 +0100
+++ b/audio/AudioCallbackPlaySource.cpp	Fri Oct 11 13:40:54 2019 +0100
@@ -546,9 +546,14 @@
     m_lastRetrievalTimestamp = 0;
     if (changed) {
         emit playStatusChanged(m_playing);
-        emit activity(tr("Stop at %1").arg
-                      (RealTime::frame2RealTime
-                       (m_lastCurrentFrame, m_sourceSampleRate).toText().c_str()));
+        if (m_sourceSampleRate) {
+            emit activity(tr("Stop at %1").arg
+                          (RealTime::frame2RealTime
+                           (m_lastCurrentFrame, m_sourceSampleRate)
+                           .toText().c_str()));
+        } else {
+            emit activity(tr("Stop"));
+        }            
     }
     m_lastCurrentFrame = 0;
 }