avcodec/mss4: check return value of init_get_bits8()

Signed-off-by: Paul B Mahol <onemda@gmail.com>
10 years ago · 418be7ceb4
parent e87e20613b
commit 418be7ceb4
1 changed files with 2 additions and 1 deletions
--- a/libavcodec/mss4.c
+++ b/libavcodec/mss4.c
@ -572,7 +572,8 @@ static int mss4_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
            ff_mss34_gen_quant_mat(c->quant_mat[i], quality, !i);
    }

-    init_get_bits8(&gb, buf + HEADER_SIZE, (buf_size - HEADER_SIZE));
+    if ((ret = init_get_bits8(&gb, buf + HEADER_SIZE, buf_size - HEADER_SIZE)) < 0)
+        return ret;

    mb_width  = FFALIGN(width,  16) >> 4;
    mb_height = FFALIGN(height, 16) >> 4;