[FFmpeg-cvslog] Fix R10k blue channel output.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Sun Dec 28 21:07:56 2014 +0100| [6a6a0620e2f8cf051131ac1cadbb0c43f1db8b03] | committer: Carl Eugen Hoyos

Fix R10k blue channel output.

Makes R10k -> gbrp10 ffv1 -> R10k roundtrip bit-identical.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6a6a0620e2f8cf051131ac1cadbb0c43f1db8b03
---

 libavcodec/r210dec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/r210dec.c b/libavcodec/r210dec.c
index cbebf7c..5dd2f0d 100644
--- a/libavcodec/r210dec.c
+++ b/libavcodec/r210dec.c
@@ -70,7 +70,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                 g = (pixel >>  4) & 0xffc0;
                 r = (pixel >> 14) & 0xffc0;
             } else {
-                b =  pixel <<  4;
+                b = (pixel <<  4) & 0xffc0;
                 g = (pixel >>  6) & 0xffc0;
                 r = (pixel >> 16) & 0xffc0;
             }