From d2e76a1f96d74ea9315ad09bfe018d5fe64ec68c Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Tue, 28 May 2019 10:49:09 +0200
Subject: avfilter/avf_showvolume: make use of av_rescale

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

(limited to 'libavfilter')

diff --git a/libavfilter/avf_showvolume.c b/libavfilter/avf_showvolume.c
index 7a8e583556..548d73c14f 100644
--- a/libavfilter/avf_showvolume.c
+++ b/libavfilter/avf_showvolume.c
@@ -165,7 +165,7 @@ static int config_input(AVFilterLink *inlink)
     AVFilterContext *ctx = inlink->dst;
     ShowVolumeContext *s = ctx->priv;
 
-    s->nb_samples = FFMAX(1024, ((double)inlink->sample_rate / av_q2d(s->frame_rate)) + 0.5);
+    s->nb_samples = FFMAX(1, av_rescale(inlink->sample_rate, s->frame_rate.den, s->frame_rate.num));
     s->values = av_calloc(inlink->channels * VAR_VARS_NB, sizeof(double));
     if (!s->values)
         return AVERROR(ENOMEM);
-- 
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