From fc61e6ed693686046ebf084a6ee2c741187eb5fa Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Fri, 24 Nov 2017 23:56:55 -0800
Subject: [PATCH] win-wasapi: Fix timestamp calculation

When device timing is used, it shouldn't be modifying the timestamp.
Fixes an issue where certain devices with large audio segments would
seem a bit out of sync.
---
 plugins/win-wasapi/win-wasapi.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/plugins/win-wasapi/win-wasapi.cpp b/plugins/win-wasapi/win-wasapi.cpp
index 7f59b0afe..17fb6a5f5 100644
--- a/plugins/win-wasapi/win-wasapi.cpp
+++ b/plugins/win-wasapi/win-wasapi.cpp
@@ -421,8 +421,9 @@ bool WASAPISource::ProcessCaptureData()
 		data.timestamp        = useDeviceTiming ?
 			ts*100 : os_gettime_ns();
 
-		data.timestamp -= (uint64_t)frames * 1000000000ULL /
-			(uint64_t)sampleRate;
+		if (!useDeviceTiming)
+			data.timestamp -= (uint64_t)frames * 1000000000ULL /
+				(uint64_t)sampleRate;
 
 		obs_source_output_audio(source, &data);