1 files changed, 8 insertions, 5 deletions

diff --git a/libavcodec/vp56rac.c b/libavcodec/vp56rac.c
index 270a3ca..e70302b 100644
--- a/libavcodec/vp56rac.c
+++ b/libavcodec/vp56rac.c
@@ -2,20 +2,20 @@
  * VP5/6/8 decoder
  * Copyright (c) 2010 Fiona Glaser <fiona@x264.com>
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -37,11 +37,14 @@ const uint8_t ff_vp56_norm_shift[256]= {
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 };
 
-void ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size)
+int ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size)
 {
     c->high = 255;
     c->bits = -16;
     c->buffer = buf;
     c->end = buf + buf_size;
+    if (buf_size < 1)
+        return AVERROR_INVALIDDATA;
     c->code_word = bytestream_get_be24(&c->buffer);
+    return 0;
 }