cavsdec: ensure the tables have been allocated before using them

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-30 19:18:42 +02:00 · 2012-03-30 19:18:42 +02:00 · ec0965be36
parent 2b7c0c9fe1
commit ec0965be36
1 changed files with 2 additions and 0 deletions
--- a/libavcodec/cavsdec.c
+++ b/libavcodec/cavsdec.c
@ -697,6 +697,8 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
            *data_size = 0;
            if(!h->got_keyframe)
                break;
+            if(!h->top_qp)
+                break;
            init_get_bits(&s->gb, buf_ptr, input_size);
            h->stc = stc;
            if(decode_pic(h))