[wdmaudiodev] Re: AUDCLNT_SHAREMODE_EXCLUSIVE with AUDCLNT_STREAMFLAGS_EVENTCALLBACK failed
- From: Chandan Sourav Pal <chandansouravpal@xxxxxxxxx>
- To: DJ Sisolak <dsisolak@xxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 5 Mar 2009 12:34:22 +0530
My pAudioClient->Initialize call fails if I select AUDCLNT_SHAREMODE_EXCLUSIVE
with AUDCLNT_STREAMFLAGS_EVENTCALLBACK and the error log i mentioned in the
previous mail.
According to SDK help doc this error can occurs if i pass invalid format. I
am sure that i am passing correct format -- if I passed wrong format
then pAudioClient->Initialize
would also fail with out AUDCLNT_STREAMFLAGS_EVENTCALLBACK flag. But with
out this stream callback everything works fine.
On Thu, Mar 5, 2009 at 4:02 AM, DJ Sisolak
<dsisolak@xxxxxxxxxxxxxxxxxxxxxx>wrote:
> Have you been able to successfully activate the IAudioClient interface?
> If so, I am not sure how this could give you an invalid argument.
>
>
>
> *From:* wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:
> wdmaudiodev-bounce@xxxxxxxxxxxxx] *On Behalf Of *Chandan Sourav Pal
> *Sent:* Sunday, March 01, 2009 10:47 PM
> *To:* wdmaudiodev@xxxxxxxxxxxxx
> *Cc:* chandansouravpal@xxxxxxxxx
> *Subject:* [wdmaudiodev] Re: AUDCLNT_SHAREMODE_EXCLUSIVE with
> AUDCLNT_STREAMFLAGS_EVENTCALLBACK failed
>
>
>
> Hi DJ,
>
>
>
> Thanks for reply.
>
>
>
> The value that I am getting from GetDevicePeriod call. The return error
> code is E_INVALIDARG
>
>
>
> Thanks and regards,
>
> Chandan
>
>
>
>
>
>
>
> On Sat, Feb 28, 2009 at 6:03 AM, DJ Sisolak <
> dsisolak@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Hi Chandan,
>
>
>
> What is the value you are setting for hnsRequestedDuration? What is the
> error code you are receiving back from Initialize?
>
>
>
> Thx,
>
> DJ
>
>
>
> *From:* wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:
> wdmaudiodev-bounce@xxxxxxxxxxxxx] *On Behalf Of *Chandan Sourav Pal
> *Sent:* Friday, February 27, 2009 7:26 AM
> *To:* wdmaudiodev@xxxxxxxxxxxxx
> *Subject:* [wdmaudiodev] AUDCLNT_SHAREMODE_EXCLUSIVE with
> AUDCLNT_STREAMFLAGS_EVENTCALLBACK failed
>
>
>
> Hi all,
>
> I am trying to implement an audio play and record application using Vista
> new WASAPI for my audio WaveRT audio driver. When i am playing or recording
> in AUDCLNT_SHAREMODE_SHARED mode it working fine (with max latency 8 ms). To
> minimize the latency I want to use AUDCLNT_SHAREMODE_EXCLUSIVE mode for
> playing and recording, but it does not work if I specify
> AUDCLNT_STREAMFLAGS_EVENTCALLBACK flag.
>
> hr = pAudioClient->Initialize( AUDCLNT_SHAREMODE_EXCLUSIVE,
> AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
> hnsRequestedDuration,
> hnsRequestedDuration,
> &wfx,
> NULL);
>
> Without this EVENT CALLBACK the Initialize succeed. I am using Vista SP1 as
> a client. Is there anything we have to do special in the WaveRT driver --
> Or I have do something in my application? I have no idea what is going
> wrong.
>
> F.Y.I This WaveRT driver works fine with WaveXXX legacy APIs with
>
> Please help.
>
> Thanks in advance,
> Chandan
>
>
>
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