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-rw-r--r--libavcodec/dxva2_h264.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/dxva2_h264.c b/libavcodec/dxva2_h264.c
index ffe71a9656..5cdf5dea5c 100644
--- a/libavcodec/dxva2_h264.c
+++ b/libavcodec/dxva2_h264.c
@@ -93,7 +93,8 @@ static void fill_picture_parameters(struct dxva_context *ctx, const H264Context
pp->num_ref_frames = h->sps.ref_frame_count;
pp->wBitFields = ((s->picture_structure != PICT_FRAME) << 0) |
- (h->sps.mb_aff << 1) |
+ ((h->sps.mb_aff &&
+ (s->picture_structure == PICT_FRAME)) << 1) |
(h->sps.residual_color_transform_flag << 2) |
/* sp_for_switch_flag (not implemented by Libav) */
(0 << 3) |