From 787c56b9e9e5f9a1b82d2b47f26e8b0924781599 Mon Sep 17 00:00:00 2001
From: Limin Wang <lance.lmwang@gmail.com>
Date: Thu, 29 Aug 2019 16:44:01 +0800
Subject: [PATCH] avformat/mxfenc: fix warning: unused function
 'klv_ber_length' [-Wunused-function]

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
---
 libavformat/mxfenc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 8b3d599a6f..aa23ee3947 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -553,15 +553,14 @@ static int klv_ber_length(uint64_t len)
 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
 {
     // Determine the best BER size
-    int size;
-    if (len < 128) {
+    int size = klv_ber_length(len);
+    if (size == 1) {
         //short form
         avio_w8(pb, len);
         return 1;
     }
 
-    size = (av_log2(len) >> 3) + 1;
-
+    size --;
     // long form
     avio_w8(pb, 0x80 + size);
     while(size) {