X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmpegvideo.c;h=e5424cbacfd5b04f207beb641c62786c1524e70e;hb=49633f9f7498499d63391eb1351de66a8f603060;hp=9a17a6e25c8e865c0786ff1ae754d2463b4748b3;hpb=db854c6c4a6ca0d0b29a688a930d4afedf060417;p=ffmpeg

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 9a17a6e25c8..e5424cbacfd 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -2116,7 +2116,9 @@ static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
         ptr_y = s->sc.edge_emu_buffer;
         if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
             uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
-            uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
+            uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
+            if (s->workaround_bugs & FF_BUG_IEDGE)
+                vbuf -= s->uvlinesize;
             s->vdsp.emulated_edge_mc(ubuf,  ptr_cb,
                                      uvlinesize >> field_based, uvlinesize >> field_based,
                                      9, 9 + field_based,