From 5c101b6588bd9b818d90d89d4e58ff6e672699e2 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Wed, 28 Mar 2018 17:14:17 +0200
Subject: [PATCH] util: play: fix: crash with soundfont created by polyphone

Issue #84.
---
 util/toaudio5.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/util/toaudio5.js b/util/toaudio5.js
index e32b108..a343946 100644
--- a/util/toaudio5.js
+++ b/util/toaudio5.js
@@ -159,6 +159,8 @@ function Audio5(i_conf) {
 		rates[instr] = []
 		for (i = 0; i < infos.length; i++) {
 			gen = infos[i].generator;
+			if (!gen.sampleID)	// (empty generator!)
+				continue
 			sid = gen.sampleID.amount;
 			sampleRate = parser.sampleHeader[sid].sampleRate;
 			sample = parser.sample[sid];