2018-04-21 10:22 GMT+02:00, Paul B Mahol <one...@gmail.com>: > 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);
Makes the affected frames bit-exact, so lgtm. Thank you, Carl Eugen _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
