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

[Michael Niedermayer]

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>
---
 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++)
-- 
1.7.5.4