avfilter/vf_scale: store the offset in a local variable before adding it

[ffmpeg] / libavcodec / h264_mc_template.c

diff --git a/libavcodec/h264_mc_template.c b/libavcodec/h264_mc_template.c
index 58c05044c135f4b4778418159e37e61480a96ecf..d02e2bf580a409aec4a9a88c05c37c2a6cc9e1a3 100644 (file)
--- a/libavcodec/h264_mc_template.c
+++ b/libavcodec/h264_mc_template.c
@@ -78,7 +78,8 @@ static void MCFUNC(hl_motion)(const H264Context *h, H264SliceContext *sl,
 
     if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))
         await_references(h, sl);
-    prefetch_motion(h, sl, 0, PIXEL_SHIFT, CHROMA_IDC);
+    if (USES_LIST(mb_type, 0))
+        prefetch_motion(h, sl, 0, PIXEL_SHIFT, CHROMA_IDC);
 
     if (IS_16X16(mb_type)) {
         mc_part(h, sl, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,