[FFmpeg-cvslog] lavfi/vf_histogram: replace round by lrint

[Ganesh Ajjanagadde]

ffmpeg | branch: master | Ganesh Ajjanagadde <gajjanagadde at gmail.com> | Wed Dec 16 14:56:18 2015 -0500| [ea2f04bffe13fb9f89778766ddab1bd4af71c538] | committer: Ganesh Ajjanagadde

lavfi/vf_histogram: replace round by lrint

lrint is at least as fast, uses a superior rounding mode, and avoids an
implicit cast.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ea2f04bffe13fb9f89778766ddab1bd4af71c538
---

 libavfilter/vf_histogram.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_histogram.c b/libavfilter/vf_histogram.c
index 8e6f531..3f50f12 100644
--- a/libavfilter/vf_histogram.c
+++ b/libavfilter/vf_histogram.c
@@ -281,7 +281,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
             int col_height;
 
             if (h->levels_mode)
-                col_height = round(h->level_height * (1. - (log2(h->histogram[i] + 1) / max_hval_log)));
+                col_height = lrint(h->level_height * (1. - (log2(h->histogram[i] + 1) / max_hval_log)));
             else
                 col_height = h->level_height - (h->histogram[i] * (int64_t)h->level_height + max_hval - 1) / max_hval;