From 61ff0431ba8ed8f4b447e4257547da1b1bec6019 Mon Sep 17 00:00:00 2001 From: Hendrik Leppkes Date: Fri, 7 Mar 2014 14:02:59 +0100 Subject: [PATCH] dxva2_vc1: include the start code in wMBbitOffset This resolves a decoding failure on Intel GPUs. Signed-off-by: Michael Niedermayer --- libavcodec/dxva2_vc1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/dxva2_vc1.c b/libavcodec/dxva2_vc1.c index 88138e342e..51c847cb42 100644 --- a/libavcodec/dxva2_vc1.c +++ b/libavcodec/dxva2_vc1.c @@ -168,7 +168,7 @@ static void fill_slice(AVCodecContext *avctx, DXVA_SliceInfo *slice, slice->dwSliceDataLocation = position; slice->bStartCodeBitOffset = 0; slice->bReservedBits = (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type) ? v->bfraction_lut_index + 9 : 0; - slice->wMBbitOffset = v->p_frame_skipped ? 0xffff : get_bits_count(&s->gb); + slice->wMBbitOffset = v->p_frame_skipped ? 0xffff : get_bits_count(&s->gb) + (avctx->codec_id == AV_CODEC_ID_VC1 ? 32 : 0); slice->wNumberMBsInSlice = s->mb_width * s->mb_height; /* XXX We assume 1 slice */ slice->wQuantizerScaleCode = v->pq; slice->wBadSliceChopping = 0;