Thanks, Ravi. I will have a look at updateclock.
The crash eventually lies in video decoding thread but before that, I find
GetCurrentTime64 returning unreasonable data.

On Thu, Jul 23, 2009 at 11:07 AM, RaviY <yend...@pv.com> wrote:

>
> Have you tried logging the android_audio_mio.cpp ... function:
> AndroidAudioMIOActiveTimingSupport::UpdateClock(). Check if the clock
> value is overflowing.
>
> Also, when you did see a crash, did you get a stack trace, or do you
> know where it is crashing?
>
> -Ravi
>
>
>
> On Jul 22, 9:37 pm, Andy Quan <androidr...@gmail.com> wrote:
> > My video clip is 80min but it crashed sometime in the mid of somewhere,
> and
> > othertime after 1-2 round playing. But According to Dave, it was 5 Hrs. I
> > thought this might be different due to hardware platform.
> >
> > Do you have any idea of this?
> >
> >
> >
>  > On Thu, Jul 23, 2009 at 10:11 AM, RaviY <yend...@pv.com> wrote:
> >
> > > How long is the "long duration"?
> >
> > > On Jul 22, 11:08 am, Andy Quan <androidr...@gmail.com> wrote:
> > > > Hi all & esp. PV engineers,
> > > > I am working on a hard bug found during long duration video playback
> by
> > > > OpenCORE v1.0 and it hangs mediaserver.
> >
> > > > I find an extremely old email talking about bugs related to long
> duration
> > > > avsync playback of opencore by Dave Sparks. It seems to be about
> OpenCORE
> > > > v1.0. I'd like to know the details about this bug, e.g. description
> and
> > > root
> > > > cause and workarounds? Thanks.
> >
> > > > Please refer to the following statements by Dave Sparks. Thanks.
> > > > On Thu, Feb 26, 2009 at 4:02 PM, Dave Sparks <
> davidspa...@android.com
> > > >wrote:
> >
> > > > > The audio MIO counts the number of audio samples output to the
> audio
> > > > > sink and divides by the frame rate. This value is adjusted by the
> > > > > latency reported by the audio sink (which ultimately comes from the
> > > > > audio HAL plus the latency in the software mixer engine). For some
> > > > > reason with OpenCore 1.0, we could never reconcile the real
> hardware
> > > > > latency with the presentation of video frames in the MIO, so we had
> to
> > > > > add a fudge factor. We are hoping that OpenCore 2.0's new media
> > > > > playback clock will resolve this issue.
> >
> > > > > I think there is an outstanding bug related to the playback clock
> and
> > > > > long streams, but I seem to recall that was 5 hours. For most
> mobile
> > > > > devices, the battery is going to die long before that if the DSP
> and
> > > > > backlight are powered up the entire time.
> > > > > --
> > > > > Thanks,
> > > > > Andy
> >
> > --
> > Thanks,
> > Andy
> >
>


-- 
Thanks,
Andy

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