lrint is at least as fast, and more accurate.
Signed-off-by: Ganesh Ajjanagadde <gajjanaga...@gmail.com>
---
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;
--
2.6.4
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