[vlc-devel] [RFI] Wasapi output restart on WinRT

Jean-Baptiste Kempf jb at videolan.org
Mon May 16 18:43:02 CEST 2016


Attached is a (refused in the past) patch to fix an issue that happens 
ONLY on WinRT: (win32 is totally fine)

- even if IAudioClient_Stop and Release are called on Stop(), on the 
next Start(), the IAudioClient_Initialize call fails saying that 
AUDCLNT_E_ALREADY_INITIALIZED, which is of course, wrong/weird.

Request For Ideas:
It is possible that the issue is because of the UI is calling 
ActivateAudioInterfaceAsync to create the IAudioClient, but it seems to 
be the official way of doing so, on WinRT.
And still this is weird.

We've tried to call _Reset(), but that does not change a thing to the 

We've tried on numerous machines on 8.1 and 10 and we've seen it many times.

Should we apply the patch? Should we do something different for WinRT, 
with ifdefs? Should we do something else? Any cool idea?


Jean-Baptiste Kempf
http://www.jbkempf.com/ - +33 672 704 734
Sent from my Electronic Device
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-wasapi-winrt.patch
Type: text/x-diff
Size: 956 bytes
Desc: not available
URL: <http://mailman.videolan.org/pipermail/vlc-devel/attachments/20160516/252b9753/attachment.patch>

More information about the vlc-devel mailing list