@@ -444,7 +444,9 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
// the last byte of the extradata is a version number, 1 for the
// samples we can decode
- init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8);
+ ret = init_get_bits8(&gb, avctx->extradata, avctx->extradata_size);
+ if (ret < 0)
+ return ret;
if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0)
return ret;
@@ -770,8 +772,11 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2);
}
init_get_bits(&s->gb, buf2, buf_size2*8);
- } else
- init_get_bits(&s->gb, buf, buf_size*8);
+ } else{
+ ret = init_get_bits8(&s->gb, buf, buf_size);
+ if (ret < 0)
+ return ret;
+ }
if (v->res_sprite) {
v->new_sprite = !get_bits1(&s->gb);