From c2eb96eed063e9d8f8ae8840a11f9a3c1d849ad4 Mon Sep 17 00:00:00 2001
From: Mike Welsh <mwelsh@gmail.com>
Date: Thu, 19 Sep 2019 11:05:27 -0700
Subject: [PATCH] core: Fix incorrect clamping in ADPCM decoder

Caused artifacts in ADPCM encoded audio.
---
 core/src/backend/audio/decoders/adpcm.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/core/src/backend/audio/decoders/adpcm.rs b/core/src/backend/audio/decoders/adpcm.rs
index 2e1718b24..42f5c7b3a 100644
--- a/core/src/backend/audio/decoders/adpcm.rs
+++ b/core/src/backend/audio/decoders/adpcm.rs
@@ -88,8 +88,8 @@ impl<R: Read> AdpcmDecoder<R> {
         } else {
             self.left_sample += delta;
         }
-        if self.left_sample < -32768 {
-            self.left_sample = 32768;
+        if self.left_sample < -32767 {
+            self.left_sample = -32767;
         } else if self.left_sample > 32767 {
             self.left_sample = 32767;
         }
@@ -115,8 +115,8 @@ impl<R: Read> AdpcmDecoder<R> {
             } else {
                 self.right_sample += delta;
             }
-            if self.right_sample < -32768 {
-                self.right_sample = 32768;
+            if self.right_sample < -32767 {
+                self.right_sample = -32767;
             } else if self.right_sample > 32767 {
                 self.right_sample = 32767;
             }