From c10b57973dff915bf2d892b22c13a52a834854bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Mon, 18 Mar 2013 08:51:55 +0100
Subject: [PATCH] lavfi/pad: fix horizontal/vertical shift confusion.

---
 libavfilter/vf_pad.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c
index 3f4a4f0dfa..4e1e3b0703 100644
--- a/libavfilter/vf_pad.c
+++ b/libavfilter/vf_pad.c
@@ -282,7 +282,7 @@ static int buffer_needs_copy(PadContext *s, AVFrame *frame, AVBufferRef *buf)
         int vsub = s->draw.vsub[planes[i]];
 
         uint8_t *start = frame->data[planes[i]];
-        uint8_t *end   = start + (frame->height >> hsub) *
+        uint8_t *end   = start + (frame->height >> vsub) *
                                  frame->linesize[planes[i]];
 
         /* amount of free space needed before the start and after the end
@@ -301,9 +301,9 @@ static int buffer_needs_copy(PadContext *s, AVFrame *frame, AVBufferRef *buf)
 
 #define SIGN(x) ((x) > 0 ? 1 : -1)
         for (j = 0; j < FF_ARRAY_ELEMS(planes) && planes[j] >= 0; j++) {
-            int hsub1 = s->draw.hsub[planes[j]];
+            int vsub1 = s->draw.vsub[planes[j]];
             uint8_t *start1 = frame->data[planes[j]];
-            uint8_t *end1   = start1 + (frame->height >> hsub1) *
+            uint8_t *end1   = start1 + (frame->height >> vsub1) *
                                        frame->linesize[planes[j]];
             if (i == j)
                 continue;