[MPlayer-cvslog] r35334 - trunk/libmpdemux/demux_ogg.c

[reimar]

Author: reimar
Date: Thu Nov  1 23:23:07 2012
New Revision: 35334

Log:
Avoid potential overflow in shift.

Modified:
   trunk/libmpdemux/demux_ogg.c

Modified: trunk/libmpdemux/demux_ogg.c
==============================================================================
--- trunk/libmpdemux/demux_ogg.c	Thu Nov  1 23:22:04 2012	(r35333)
+++ trunk/libmpdemux/demux_ogg.c	Thu Nov  1 23:23:07 2012	(r35334)
@@ -298,7 +298,7 @@ static unsigned char *demux_ogg_read_pac
            have theora_state st, until all header packets were passed to the
            decoder. */
         if (!pack->bytes || !(*data&0x80)) {
-            int64_t iframemask = (1 << os->keyframe_granule_shift) - 1;
+            int64_t iframemask = (1ull << os->keyframe_granule_shift) - 1;
 
             if (pack->granulepos >= 0) {
                 os->lastpos  = pack->granulepos >> os->keyframe_granule_shift;