[FFmpeg-cvslog] avfilter/vf_overlay: use slice_end in alpha_composite()

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Sun Apr 29 10:02:57 2018 +0200| [70d25b89db9b9b85d02480faddf7bee3988a36cd] | committer: Paul B Mahol

avfilter/vf_overlay: use slice_end in alpha_composite()

Signed-off-by: Paul B Mahol <onemda at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=70d25b89db9b9b85d02480faddf7bee3988a36cd
---

 libavfilter/vf_overlay.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_overlay.c b/libavfilter/vf_overlay.c
index a90540f45c..8c1895cca4 100644
--- a/libavfilter/vf_overlay.c
+++ b/libavfilter/vf_overlay.c
@@ -611,7 +611,7 @@ static inline void alpha_composite(const AVFrame *src, const AVFrame *dst,
     sa = src->data[3] + (i + slice_start) * src->linesize[3];
     da = dst->data[3] + (y + i + slice_start) * dst->linesize[3];
 
-    for (i = i + slice_start; i < imax; i++) {
+    for (i = i + slice_start; i < slice_end; i++) {
         j = FFMAX(-x, 0);
         s = sa + j;
         d = da + x+j;