Hi Matthew, With respect to your reply, where you suggest that there may be a bug in wave test itself, I just want to know how do i verify this. Is there a way i can confirm if the bug is in the test itself or my side? Thanks, Gaurav On Mon, Feb 17, 2014 at 10:52 PM, Matthew van Eerde < Matthew.van.Eerde@xxxxxxxxxxxxx> wrote: > It's probable, then, that you have found a bug in Wave Test. > > > > *From:* wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto: > wdmaudiodev-bounce@xxxxxxxxxxxxx] *On Behalf Of *Gaurav Khuntale > *Sent:* Saturday, February 15, 2014 8:07 AM > > *To:* wdmaudiodev@xxxxxxxxxxxxx > *Subject:* [wdmaudiodev] Re: Need help in wave test failure. > > > > Hi, > Yes..it also repro on msvad. > > Thanks, > Gaurav > > On Feb 14, 2014 11:33 PM, "Matthew van Eerde" < > Matthew.van.Eerde@xxxxxxxxxxxxx> wrote: > > Does this failure repro on MSVad? > > > > *From:* wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto: > wdmaudiodev-bounce@xxxxxxxxxxxxx] *On Behalf Of *Gaurav Khuntale > *Sent:* Thursday, February 13, 2014 9:17 PM > *To:* wdmaudiodev@xxxxxxxxxxxxx > *Subject:* [wdmaudiodev] Re: Need help in wave test failure. > > > > Hi Tim, > > When i update Play Offset exact equal to total data that came to CopyTo, > then i saw that my driver is getting more than 1600 bytes of data ( but > less than 3200 bytes ) even though test is sending 1600 bytes only. Also > from the failure message " FAIL: Position (1600) is less than the amount of > data streamed (3200).", it seems that total data streamed is 3200 and i > think that extra data may be coming because of that separate thread which > is getting created in-between. > > About data format, test is using different formats every time it tests the > case. For the logs which i provided in my original question, test used > 8KHz, 1 channel and 8 bit data format. > > Can you guess what could be the reason behind failure ? > > Thanks. > > > > On Thu, Feb 13, 2014 at 11:24 PM, Tim Roberts <timr@xxxxxxxxx> wrote: > > Gaurav Khuntale wrote: > > > > I am working on audio driver based on WaveCyclic port driver. I am > > getting following failure in wave test, > > I'm not sure you're interpreting the error message correctly, although I > also could be wrong. Consider: > > > > > Standard Streaming\Rendering Pin Tests\Streaming buffer from different > > threads > > Successfully instantiated KSPIN_DATAFLOW_IN pin > > Submitting 1600 bytes to the pin > > > ... > > > pin position pos2.playoffset = 1440 , pos1.playOffset = 1600 > > FAIL: Position (1600) is less than the amount of data streamed > (3200). > > > > While investigating about above failure, i got to know that my driver > > is not getting total data ( 3200 bytes in above case ) that test sends. > > Note that the log says "Submitting 1600 bytes to the pin". It makes me > wonder if the error is trying to say that someone is reporting that 3200 > bytes were streamed, when in fact only 1600 were sent. > > What's the data format? Is it 16kHz? Stereo? 16-bit? I'm wondering > if, somewhere, you have a confusion between bytes and samples. > > I'm merely speculating, however. > > > > > Also when exactly CopyTo and GetPosition method gets called ? > > CopyTo is called when there is new data to transfer. GetPosition is > polled quite often so the audio subsystem can monitor the real-time > state of the stream. > > -- > Tim Roberts, timr@xxxxxxxxx > Providenza & Boekelheide, Inc. > > ****************** > > WDMAUDIODEV addresses: > Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx > Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe > Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe > Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx > > URL to WDMAUDIODEV page: > http://www.wdmaudiodev.com/ > > > >