wmaprodec; fix get_bits(0) case.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · b28c678ba8
parent 97a5addfcf
commit b28c678ba8
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/wmaprodec.c
+++ b/libavcodec/wmaprodec.c
@ -1130,7 +1130,7 @@ static int decode_subframe(WMAProDecodeCtx *s)
        int num_fill_bits;
        if (!(num_fill_bits = get_bits(&s->gb, 2))) {
            int len = get_bits(&s->gb, 4);
-            num_fill_bits = get_bits(&s->gb, len) + 1;
+            num_fill_bits = (len ? get_bits(&s->gb, len) : 0) + 1;
        }

        if (num_fill_bits >= 0) {