# HG changeset patch
# User Chris Cannam
# Date 1336750234 -3600
# Node ID 28aafd0c1a5d85406a290570e44dc08d921a64f0
# Parent  9f956bc72cc7ac915fce4e0595766777395ffd12
Avoid crash on empty input

diff -r 9f956bc72cc7 -r 28aafd0c1a5d songparts/SongParts.cpp
--- a/songparts/SongParts.cpp	Fri May 11 16:30:20 2012 +0100
+++ b/songparts/SongParts.cpp	Fri May 11 16:30:34 2012 +0100
@@ -767,6 +767,8 @@
     
     // quantised and pseudo-quantised (beat-wise) chroma
     std::vector<FeatureList> quantisedChroma = beatQuantiser(chromaList, masterFeatureset[m_beatOutputNumber]);
+
+    if (quantisedChroma.empty()) return masterFeatureset;
     
     masterFeatureset[m_qchromafwOutputNumber] = quantisedChroma[0];
     masterFeatureset[m_qchromaOutputNumber] = quantisedChroma[1];