[FFmpeg-cvslog] sws: dont use the optimized 410->420 unscaled conversion when height%4

[Michael Niedermayer]

ffmpeg | branch: release/1.2 | Michael Niedermayer <michaelni at gmx.at> | Wed Apr 30 06:21:58 2014 +0200| [3d79041f85498eee309bc3c2adc985a9686a5057] | committer: Carl Eugen Hoyos

sws: dont use the optimized 410->420 unscaled conversion when height%4

Fixes Ticket3594
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit 421b21ca8a02a346ba03cea3bb2ecc33f791fc30)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3d79041f85498eee309bc3c2adc985a9686a5057
---

 libswscale/swscale_unscaled.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index 8da73b2..f6c3b35 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -1017,7 +1017,7 @@ void ff_get_unscaled_swscale(SwsContext *c)
         c->swScale = ff_yuv2rgb_get_func_ptr(c);
     }
 
-    if (srcFormat == AV_PIX_FMT_YUV410P &&
+    if (srcFormat == AV_PIX_FMT_YUV410P && !(dstH & 3) &&
         (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
         !(flags & SWS_BITEXACT)) {
         c->swScale = yvu9ToYv12Wrapper;