[FFmpeg-cvslog] swscale: fix for sliced scaling artifacts

[Pedro Arthur]

ffmpeg | branch: master | Pedro Arthur <bygrandao at gmail.com> | Thu Sep  8 15:57:40 2016 -0300| [8433d953e4f13b515b80f7d20c61a44efc6a448f] | committer: Pedro Arthur

swscale: fix for sliced scaling artifacts

Signed-off-by: Pedro Arthur <bygrandao at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8433d953e4f13b515b80f7d20c61a44efc6a448f
---

 libswscale/swscale.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 0874556..c3a8d0e 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -440,7 +440,7 @@ static int swscale(SwsContext *c, const uint8_t *src[],
             firstPosY = FFMAX(firstLumSrcY, posY);
             lastPosY = FFMIN(firstLumSrcY + hout_slice->plane[0].available_lines - 1, srcSliceY + srcSliceH - 1);
         } else {
-            firstPosY = lastInLumBuf + 1;
+            firstPosY = posY;
             lastPosY = lastLumSrcY;
         }
 
@@ -449,7 +449,7 @@ static int swscale(SwsContext *c, const uint8_t *src[],
             firstCPosY = FFMAX(firstChrSrcY, cPosY);
             lastCPosY = FFMIN(firstChrSrcY + hout_slice->plane[1].available_lines - 1, AV_CEIL_RSHIFT(srcSliceY + srcSliceH, c->chrSrcVSubSample) - 1);
         } else {
-            firstCPosY = lastInChrBuf + 1;
+            firstCPosY = cPosY;
             lastCPosY = lastChrSrcY;
         }