Fixes #2557. Signed-off-by: Paul B Mahol <one...@gmail.com> --- libavcodec/vc1_pred.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/vc1_pred.c b/libavcodec/vc1_pred.c index 54712f6b7a..9f42a930fe 100644 --- a/libavcodec/vc1_pred.c +++ b/libavcodec/vc1_pred.c @@ -98,9 +98,9 @@ static av_always_inline int scaleforsame_y(VC1Context *v, int i, int n /* MV */, } if (v->cur_field_type && !v->ref_field_type[dir]) - return av_clip(scaledvalue, -v->range_y / 2 + 1, v->range_y / 2); + return av_clip(scaledvalue, -v->range_y / 2 - 1, v->range_y / 2); else - return av_clip(scaledvalue, -v->range_y / 2, v->range_y / 2 - 1); + return av_clip(scaledvalue, -v->range_y / 2, v->range_y / 2 + 1); } static av_always_inline int scaleforopp_x(VC1Context *v, int n /* MV */) -- 2.11.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel