[Libav-user] Serious Issue

[Yamusani Vinay]

On Tue, Dec 17, 2013 at 1:24 AM, Kevin Dixon <kevin.c.dixon at gmail.com>wrote:

> On Fri, Dec 13, 2013 at 12:14 PM, Alex Cohn <alexcohn at netvision.net.il>
> wrote:
> > On Thu, Dec 12, 2013 at 1:21 PM, Yamusani Vinay <yamusanivinay at gmail.com>
> wrote:
> >> Hi All,
> >>
> >>     I am using ffmpeg..in my android application..The main problem what
> I am
> >> facing is if I navigate to another application or if do another
> >> activity..the song breaks means i will get some shutters and pops in the
> >> song.So Please let me know how to resolve this issue..
> >>
> >>   I am facing this issue when I am applying filters ln my code..If I do
> not
> >> apply any filters and play normally it is working fine..Even I checked
> my
> >> code inside a thread still I am facing problem.
> >>
> >>   So please resolve this issue..
> >>
> >> Thanks & Regards,
> >> Bitfield.
> >
> > There is very little that ffmpeg libraries can do to help you here.
> > Probably, filters require more CPU than normal playback. You can keep
> > the thread priority high, even if the app that hosts it goes to
> > background, but that's an entirely Android-specific issue.
> >
> > BR,
> > Alex Cohn
> > _______________________________________________
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> > Libav-user at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/libav-user
>
>
> Hi Yamusani,
>
> You should consider putting your audio processing in an Android Service
> http://developer.android.com/reference/android/app/Service.html
> You can even run the Service as a separate process if that is not good
> enough for you, by assigning the
> android:process="..." attribute in the AndroidManifest.xml for your
> <service> element.
>
> I suspect that when your activity is backgrounded, the context switch
> is very expensive. You might see messages in logcat from Choreographer
> process complaining about dropping frames
>
> Kevin
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>
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