index_scale is set to matroska->time_scale of type uint64_t.
When index_scale is int, the assignment can overflow and e.g. result
in index_scale = 0. This causes a floating point exception due to the
division by index_scale.
Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/matroskadec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 301304b..27d184e 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1504,7 +1504,7 @@ static void
matroska_add_index_entries(MatroskaDemuxContext *matroska)
{
EbmlList *index_list;
MatroskaIndex *index;
- int index_scale = 1;
+ uint64_t index_scale = 1;
int i, j;
if (matroska->ctx->flags & AVFMT_FLAG_IGNIDX)
--
2.1.4
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