[FFmpeg-cvslog] swscale: fix another yuv range conversion overflow in 16bit scaling.

[Ronald S. Bultje]

ffmpeg | branch: master | Ronald S. Bultje <rsbultje at gmail.com> | Thu Jun 30 07:05:52 2011 -0700| [afb9d4e8f10a78d52750e59bfd06d6fbd88e98f3] | committer: Michael Niedermayer

swscale: fix another yuv range conversion overflow in 16bit scaling.
(cherry picked from commit 81cc7d0bd1eab0aa782ff8dd49e087025a42cdee)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=afb9d4e8f10a78d52750e59bfd06d6fbd88e98f3
---

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

diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 644f848..06ce8ff 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -2001,7 +2001,7 @@ static void lumRangeToJpeg16_c(int16_t *_dst, int width)
     int i;
     int32_t *dst = (int32_t *) _dst;
     for (i = 0; i < width; i++)
-        dst[i] = (FFMIN(dst[i],30189<<4)*19077 - (39057361<<4))>>14;
+        dst[i] = (FFMIN(dst[i],30189<<4)*4769 - (39057361<<2))>>12;
 }
 static void lumRangeFromJpeg16_c(int16_t *_dst, int width)
 {