From 97a5ac08f1500fb0159c38640e868565fb610408 Mon Sep 17 00:00:00 2001
From: Paul Brossier <piem@piem.org>
Date: Fri, 7 Dec 2018 12:18:17 +0100
Subject: [PATCH] [timestretch] validate input hopsize and samplerate

---
 src/effects/timestretch_rubberband.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/effects/timestretch_rubberband.c b/src/effects/timestretch_rubberband.c
index 39be8111..81fb2dc9 100644
--- a/src/effects/timestretch_rubberband.c
+++ b/src/effects/timestretch_rubberband.c
@@ -65,6 +65,16 @@ new_aubio_timestretch (const char_t * mode, smpl_t stretchratio, uint_t hopsize,
   p->hopsize = hopsize;
   p->pitchscale = 1.;
 
+  if ((sint_t)hopsize <= 0) {
+    AUBIO_ERR("timestretch: hopsize should be > 0, got %d\n", hopsize);
+    goto beach;
+  }
+
+  if ((sint_t)samplerate <= 0) {
+    AUBIO_ERR("timestretch: samplerate should be > 0, got %d\n", samplerate);
+    goto beach;
+  }
+
   if (stretchratio <= MAX_STRETCH_RATIO && stretchratio >= MIN_STRETCH_RATIO) {
     p->stretchratio = stretchratio;
   } else {
-- 
2.11.0