# HG changeset patch
# User Nicholas Jillings <nicholas.jillings@mail.bcu.ac.uk>
# Date 1490799135 -3600
# Node ID f734e5fa2065e910f61e5aa0e2df051c36aaa7f5
# Parent  a513533565cf5283dce2cfa229fdee1a8c2328c1
#192. Ensure num_frames minimum value is 0

diff -r a513533565cf -r f734e5fa2065 js/loudness.js
--- a/js/loudness.js	Tue Mar 28 12:59:27 2017 +0100
+++ b/js/loudness.js	Wed Mar 29 15:52:15 2017 +0100
@@ -80,6 +80,7 @@
     frame_size = Math.floor(buffer.sampleRate * frame_dur);
     step_size = Math.floor(frame_size * (1.0 - frame_overlap));
     num_frames = Math.floor((buffer.length - frame_size) / step_size);
+    num_frames = Math.max(num_frames, 0);
 
     MS = Array(buffer.numberOfChannels);
     for (var c = 0; c < buffer.numberOfChannels; c++) {