From 75b64cabf5a14ebd48442f0f09a979397de33d7d Mon Sep 17 00:00:00 2001
From: David Reid <mackron@gmail.com>
Date: Fri, 11 Feb 2022 18:35:08 +1000
Subject: [PATCH] DirectSound: Increase the size of the default buffer size.

Public issue https://github.com/mackron/miniaudio/issues/429
---
 miniaudio.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/miniaudio.h b/miniaudio.h
index f91bb834..684720d6 100644
--- a/miniaudio.h
+++ b/miniaudio.h
@@ -23173,8 +23173,11 @@ static ma_result ma_config_to_WAVEFORMATEXTENSIBLE(ma_format format, ma_uint32 c
 
 static ma_uint32 ma_calculate_period_size_in_frames_from_descriptor__dsound(const ma_device_descriptor* pDescriptor, ma_uint32 nativeSampleRate, ma_performance_profile performanceProfile)
 {
-    /* DirectSound has a minimum period size of 20ms. */
-    ma_uint32 minPeriodSizeInFrames = ma_calculate_buffer_size_in_frames_from_milliseconds(20, nativeSampleRate);
+    /*
+    DirectSound has a minimum period size of 20ms. In practice, this doesn't seem to be enough for
+    reliable glitch-free processing so going to use 30ms instead.
+    */
+    ma_uint32 minPeriodSizeInFrames = ma_calculate_buffer_size_in_frames_from_milliseconds(30, nativeSampleRate);
     ma_uint32 periodSizeInFrames;
 
     periodSizeInFrames = ma_calculate_buffer_size_in_frames_from_descriptor(pDescriptor, nativeSampleRate, performanceProfile);