[wdmaudiodev] Re: AUDCLNT_SHAREMODE_EXCLUSIVE with AUDCLNT_STREAMFLAGS_EVENTCALLBACK failed
- From: Chandan Sourav Pal <chandansouravpal@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Fri, 6 Mar 2009 11:04:40 +0530
Thanks for information. I did not implement optional
MiniportWaveRTStreamNotification
interface.
Do I have to overload RegisterNotification and UnRegisterNotification
function for MiniportWaveRTStreamNotification interface? I have implemented
AllocateBufferWithNotification and FreeBufferWithNotification.
Thanks and regards,
Chandan
On Fri, Mar 6, 2009 at 5:20 AM, Jeff Pages <jeff@xxxxxxxxxxxxxxxx> wrote:
> Does your WaveRT driver implement the optional
> MiniportWaveRTStreamNotification interface described in the September 2007
> WaveRT white paper update? According to that document, you need this
> interface for event-driven audio streaming to work.
>
> Jeff
>
> ----- Original Message -----
> *From:* Chandan Sourav Pal <chandansouravpal@xxxxxxxxx>
> *To:* DJ Sisolak <dsisolak@xxxxxxxxxxxxxxxxxxxxxx>
> *Cc:* wdmaudiodev@xxxxxxxxxxxxx
> *Sent:* Thursday, March 05, 2009 6:04 PM
> *Subject:* [wdmaudiodev] Re: AUDCLNT_SHAREMODE_EXCLUSIVE with
> AUDCLNT_STREAMFLAGS_EVENTCALLBACK failed
>
> 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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