_WITH_NOTIFICATION clients, including audiodg.exe in shared mode, or audio
applications in either exclusive mode or offload mode, need to do the
“alignment dance” to handle this problem. This dance is described here:
https://blogs.msdn.microsoft.com/matthew_van_eerde/2009/04/03/sample-wasapi-exclusive-mode-event-driven-playback-app-including-the-hd-audio-alignment-dance/
Also see the DEVPKEY_KsAudio_PacketSize_Constraints property and
KSAUDIO_PACKETSIZE_CONSTRAINTS2.
https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/content/ksmedia/ns-ksmedia-_ksaudio_packetsize_constraints2
From: Eugene Muzychenko<mailto:reg.wad@xxxxxxxxxxxxxx>
Sent: Friday, August 3, 2018 7:19 AM
To: Matthew van Eerde<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: Other strangeness in PortCls and AudioDG
Hello Matthew,
Could you please comment the second part of my first message in this
topic?
===================
if the driver returns actual buffer size greater than requested in
KSPROPERTY_RTAUDIO_BUFFER_WITH_NOTIFICATION, AudioDG immediately
closes pin instance and returns "unspecified error" to its client.
===================
Is such AudioDG behavior expected, or it is a bug?
Regards,
Eugene
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