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Diffstat (limited to 'libavcodec/dxva2_vc1.c')
-rw-r--r--libavcodec/dxva2_vc1.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dxva2_vc1.c b/libavcodec/dxva2_vc1.c
index 2e9a00eb07..6ff5765f0c 100644
--- a/libavcodec/dxva2_vc1.c
+++ b/libavcodec/dxva2_vc1.c
@@ -122,7 +122,7 @@ static void fill_picture_parameters(AVCodecContext *avctx,
(v->range_mapuv_flag << 3) |
(v->range_mapuv );
pp->bPicBinPB = 0;
- pp->bMV_RPS = 0;
+ pp->bMV_RPS = (v->fcm == ILACE_FIELD && pp->bPicBackwardPrediction) ? v->refdist + 9 : 0;
pp->bReservedBits = 0;
if (s->picture_structure == PICT_FRAME) {
pp->wBitstreamFcodes = v->lumscale;