From db1c89fa34d63cbc30b99bb7f9f969969667f074 Mon Sep 17 00:00:00 2001
From: Eric Rosenbaum <eric.rosenbaum@gmail.com>
Date: Tue, 8 Jan 2019 12:11:53 -0500
Subject: [PATCH] Prevent error due to LIST chunks

---
 src/ArrayBufferStream.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/ArrayBufferStream.js b/src/ArrayBufferStream.js
index 86d62f2..e5b8a84 100644
--- a/src/ArrayBufferStream.js
+++ b/src/ArrayBufferStream.js
@@ -150,7 +150,17 @@ class ArrayBufferStream {
      * @return {number} the next 32 bit integer in the stream
      */
     readInt32 () {
-        const val = new Int32Array(this.arrayBuffer, this._position, 1)[0];
+        // const sliced = this.arrayBuffer.slice
+        let val;
+        if (this._position % 4 === 0) {
+            val = new Int32Array(this.arrayBuffer, this._position, 1)[0];
+        } else {
+            // Cannot read Int32 directly out because offset is not multiple of 4
+            // Need to slice out the values first
+            val = new Int32Array(
+                this.arrayBuffer.slice(this._position, this._position + 4)
+            )[0];
+        }
         this._position += 4; // one 32 bit int is 4 bytes
         return val;
     }