From d11de2b9fdb99fbfeac603e77c490f8147939ec2 Mon Sep 17 00:00:00 2001
From: Vladislav Mikhalin <mikhalinvlad@gmail.com>
Date: Sun, 23 Feb 2025 15:19:10 +0300
Subject: [PATCH] normalize floating point output

---
 C/src/decoder.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/C/src/decoder.c b/C/src/decoder.c
index 09aeb01..6a922b2 100644
--- a/C/src/decoder.c
+++ b/C/src/decoder.c
@@ -7,6 +7,7 @@
 #include "unpack.h"
 #include "utility.h"
 #include <string.h>
+#include <limits.h>
 
 static At9Status DecodeFrame(Frame* frame, BitReaderCxt* br);
 static void ImdctBlock(Block* block);
@@ -140,7 +141,7 @@ void PcmFloatToF32(Frame* frame, float* pcmOut, int nointerleave)
 		{
 			for (int smpl = 0; smpl < sampleCount; smpl++, i++)
 			{
-				pcmOut[i] = (float)channels[ch]->Pcm[smpl];
+				pcmOut[i] = (float)(channels[ch]->Pcm[smpl] / SHRT_MAX);
 			}
 		}
 	}
@@ -150,7 +151,7 @@ void PcmFloatToF32(Frame* frame, float* pcmOut, int nointerleave)
 		{
 			for (int ch = 0; ch < channelCount; ch++, i++)
 			{
-				pcmOut[i] = (float)channels[ch]->Pcm[smpl];
+				pcmOut[i] = (float)(channels[ch]->Pcm[smpl] / SHRT_MAX);
 			}
 		}
 	}