From: dmitrykos <dmitrykos@0f58301d-fd10-0410-b4af-bbb618454e57>
Date: Sat, 20 Feb 2010 12:03:57 +0000 (+0000)
Subject: wasapi: improved paFramesPerBufferUnspecified handling in case device does not provid... 
X-Git-Tag: pa_stable_v19_20110326_r1647~170
X-Git-Url: https://andrewgundersen.net/repos?a=commitdiff_plain;h=d2e38acc08a2f83a1c3c40fb32695d3bee209a50;p=portaudio

wasapi: improved paFramesPerBufferUnspecified handling in case device does not provide default period, paInvalidSampleRate will be returned if sampleRate parameter is 0 for Pa_IsFormatSupported/Pa_OpenStream
---

diff --git a/src/hostapi/wasapi/pa_win_wasapi.cpp b/src/hostapi/wasapi/pa_win_wasapi.cpp
index ec938fd..a3a4bb1 100644
--- a/src/hostapi/wasapi/pa_win_wasapi.cpp
+++ b/src/hostapi/wasapi/pa_win_wasapi.cpp
@@ -1368,6 +1368,8 @@ static PaError IsStreamParamsValid(struct PaUtilHostApiRepresentation *hostApi,
 {
 	if (hostApi == NULL)
 		return paHostApiNotFound;
+	if ((UINT32)sampleRate == 0)
+		return paInvalidSampleRate;
 	
 	if (inputParameters != NULL)
     {
@@ -1686,6 +1688,8 @@ static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
 		// choosing maximum default size
 		framesPerBuffer = max(framesPerBufferIn, framesPerBufferOut);
 	}
+	if (framesPerBuffer == 0)
+		framesPerBuffer = ((UINT32)sampleRate / 100) * 2;
 
 	// Try create device: Input
 	if (inputParameters != NULL)