From 38c83fc14b790ec307d5e06bdd4705b821c07c2e Mon Sep 17 00:00:00 2001
From: Won-Kyu Park <wkpark@gmail.com>
Date: Mon, 26 Jul 2021 17:09:07 +0900
Subject: [PATCH] try to setup desired sampleRate

---
 source/device.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/source/device.cpp b/source/device.cpp
index 84c9eb3..531c560 100644
--- a/source/device.cpp
+++ b/source/device.cpp
@@ -468,6 +468,16 @@ bool HDevice::SetupAudioCapture(IBaseFilter *filter, AudioConfig &config)
 			Error(L"Could not get closest audio media type");
 			return false;
 		}
+	} else {
+		// useDefaultConfig case
+		if (config.sampleRate != 0) {
+			WAVEFORMATEX *wfex = reinterpret_cast<WAVEFORMATEX *>(
+				audioMediaType->pbFormat);
+			// set the desired sampleRate
+			wfex->nSamplesPerSec = config.sampleRate;
+			Debug(L"\tdesired sampleRate = %d", config.sampleRate);
+			wfex->nAvgBytesPerSec = wfex->nSamplesPerSec * wfex->nBlockAlign;
+		}
 	}
 
 	if (!!pinConfig) {