From ea3a980a610e2517fcb2abe2708166a4b9f6e57d Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sun, 30 Dec 2018 22:08:11 +0100
Subject: [PATCH] avfilter/af_afir: do not over allocate fft buffer

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

diff --git a/libavfilter/af_afir.c b/libavfilter/af_afir.c
index 35fa66bad5..73a613f153 100644
--- a/libavfilter/af_afir.c
+++ b/libavfilter/af_afir.c
@@ -326,7 +326,7 @@ static int init_segment(AVFilterContext *ctx, AudioFIRSegment *seg,
     if (!seg->rdft || !seg->irdft)
         return AVERROR(ENOMEM);
 
-    seg->fft_length    = part_size * 4 + 1;
+    seg->fft_length    = part_size * 2 + 1;
     seg->part_size     = part_size;
     seg->block_size    = FFALIGN(seg->fft_length, 32);
     seg->coeff_size    = FFALIGN(seg->part_size + 1, 32);