From 717e8b13d8ec26202ebec6841ad275175bfb9c07 Mon Sep 17 00:00:00 2001
From: Alen Vrecko <332217+avrecko@users.noreply.github.com>
Date: Tue, 12 May 2020 13:29:28 +0200
Subject: [PATCH] Expose internal channel for IsoViewer MetaBox parsing.

---
 .../java/org/mp4parser/RewindableReadableByteChannel.java   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/isoparser/src/main/java/org/mp4parser/RewindableReadableByteChannel.java b/isoparser/src/main/java/org/mp4parser/RewindableReadableByteChannel.java
index 10d10da4d..1bf7945de 100644
--- a/isoparser/src/main/java/org/mp4parser/RewindableReadableByteChannel.java
+++ b/isoparser/src/main/java/org/mp4parser/RewindableReadableByteChannel.java
@@ -78,6 +78,12 @@ public void rewind() {
         nextBufferReadPosition = 0;
     }
 
+    // for isoviewer
+    public ReadableByteChannel underlyingChannel()
+    {
+        return readableByteChannel;
+    }
+
     /**
      * @see ReadableByteChannel#isOpen()
      */