[FFmpeg-cvslog] avcodec/dxva2_av1: fix superres_denom parameter

[Tong Wu]

ffmpeg | branch: release/4.4 | Tong Wu <tong1.wu at intel.com> | Wed Sep  8 13:19:50 2021 +0800| [df288deb9bf5e4c85b6447dbfe5f2af92cb62943] | committer: Hendrik Leppkes

avcodec/dxva2_av1: fix superres_denom parameter

Defined in spec 5.9.8. When superres is enabled, SuperresDenom equals
"coded_denom + SUPERRES_DENOM_MIN" instead of coded_denom.

Signed-off-by: Tong Wu <tong1.wu at intel.com>
Signed-off-by: Hendrik Leppkes <h.leppkes at gmail.com>
(cherry picked from commit f31033c6ca4bd88e4bb646bab0bc7fd600d4f8b2)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=df288deb9bf5e4c85b6447dbfe5f2af92cb62943
---

 libavcodec/dxva2_av1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dxva2_av1.c b/libavcodec/dxva2_av1.c
index aa14e473df..c30b57799c 100644
--- a/libavcodec/dxva2_av1.c
+++ b/libavcodec/dxva2_av1.c
@@ -73,7 +73,7 @@ static int fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *c
     pp->max_height = seq->max_frame_height_minus_1 + 1;
 
     pp->CurrPicTextureIndex = ff_dxva2_get_surface_index(avctx, ctx, h->cur_frame.tf.f);
-    pp->superres_denom      = frame_header->use_superres ? frame_header->coded_denom : AV1_SUPERRES_NUM;
+    pp->superres_denom      = frame_header->use_superres ? frame_header->coded_denom + AV1_SUPERRES_DENOM_MIN : AV1_SUPERRES_NUM;
     pp->bitdepth            = get_bit_depth_from_seq(seq);
     pp->seq_profile         = seq->seq_profile;