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cavsdec: Make sure a sequence header has been decoded before decoding pictures

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2013-09-12 11:58:25 +03:00
parent 5bbfe193a0
commit e90a6846c2

View File

@ -931,6 +931,11 @@ static int decode_pic(AVSContext *h)
int skip_count = -1;
enum cavs_mb mb_type;
if (!h->top_qp) {
av_log(h->avctx, AV_LOG_ERROR, "No sequence header decoded yet\n");
return AVERROR_INVALIDDATA;
}
av_frame_unref(h->cur.f);
skip_bits(&h->gb, 16);//bbv_dwlay