From: Edward Hervey <edward@centricular.com>
Date: Tue, 2 Jan 2018 14:23:00 +0000 (+0100)
Subject: nalutils: Fix Exponential-Golomb 'ue' parsing
X-Git-Tag: 1.19.3~507^2~4583
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7ecb3dc91794984723b90cb29b4732aa671dd848;p=platform%2Fupstream%2Fgstreamer.git

nalutils: Fix Exponential-Golomb 'ue' parsing

The algorithm we use only supports up to a maximum exponent of 31
(for a maximum resulting of 2**32 -1)

CID #1427097
---

diff --git a/gst-libs/gst/codecparsers/nalutils.c b/gst-libs/gst/codecparsers/nalutils.c
index d73e26e..6f9bc3a 100644
--- a/gst-libs/gst/codecparsers/nalutils.c
+++ b/gst-libs/gst/codecparsers/nalutils.c
@@ -219,7 +219,7 @@ nal_reader_get_ue (NalReader * nr, guint32 * val)
       return FALSE;
   }
 
-  if (G_UNLIKELY (i > 32))
+  if (G_UNLIKELY (i > 31))
     return FALSE;
 
   if (G_UNLIKELY (!nal_reader_get_bits_uint32 (nr, &value, i)))