Fixes: CID1503075 Unintentional integer overflow
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6f52b64bcc345842a88a40ddf3873559f1160e34)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>