From 394106a1384574d9dcb74c5dd5172bbc0508fa53 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Tue, 10 Oct 2023 10:23:06 +0200
Subject: [PATCH] avcodec/mlpenc: fix regression in encoding only zeroes

Previously it would use more bits than neccessary.
---
 libavcodec/mlpenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/mlpenc.c b/libavcodec/mlpenc.c
index 60a8abe929..46f6c4127a 100644
--- a/libavcodec/mlpenc.c
+++ b/libavcodec/mlpenc.c
@@ -452,7 +452,7 @@ static void default_decoding_params(MLPEncodeContext *ctx, DecodingParams *decod
  */
 static int inline number_sbits(int32_t n)
 {
-    return 33 - ff_clz(FFABS(n)|1);
+    return 33 - ff_clz(FFABS(n)|1) - !n;
 }
 
 enum InputBitDepth {