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-rw-r--r--libavcodec/vc1dec.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index b8237d7f8d..4127691dc1 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -794,6 +794,7 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
/* calculate chroma MV vector from four luma MVs */
if (!v->field_mode || (v->field_mode && !v->numref)) {
valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty);
+ chroma_ref_type = v->reffield;
if (!valid_count) {
s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0;
s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0;