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-rw-r--r--libavcodec/mpeg_er.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/mpeg_er.c b/libavcodec/mpeg_er.c
index ada1a1692f..f54cb8548b 100644
--- a/libavcodec/mpeg_er.c
+++ b/libavcodec/mpeg_er.c
@@ -78,6 +78,8 @@ static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
ff_update_block_index(s);
s->bdsp.clear_blocks(s->block[0]);
+ if (!s->chroma_y_shift)
+ s->bdsp.clear_blocks(s->block[6]);
s->dest[0] = s->current_picture.f->data[0] +
s->mb_y * 16 * s->linesize +