[FFmpeg-cvslog] av_image_alloc: Align the width to 8 when align >= 8.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Apr 12 21:03:19 2012 +0200| [62e5ef95cacb29b5ee3149792f12f9204dbd1655] | committer: Michael Niedermayer

av_image_alloc: Align the width to 8 when align >= 8.

This allows simd optimized routines to work in steps of 8 pixels
without going over the linesize. (this matters for yuv->rgb24 for example)

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=62e5ef95cacb29b5ee3149792f12f9204dbd1655
---

 libavutil/imgutils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavutil/imgutils.c b/libavutil/imgutils.c
index 75642d1..ef7d413 100644
--- a/libavutil/imgutils.c
+++ b/libavutil/imgutils.c
@@ -188,7 +188,7 @@ int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
 
     if ((ret = av_image_check_size(w, h, 0, NULL)) < 0)
         return ret;
-    if ((ret = av_image_fill_linesizes(linesizes, pix_fmt, w)) < 0)
+    if ((ret = av_image_fill_linesizes(linesizes, pix_fmt, align>7 ? FFALIGN(w, 8) : w)) < 0)
         return ret;
 
     for (i = 0; i < 4; i++)