Re: AudioQueue and seeking through file
Re: AudioQueue and seeking through file
- Subject: Re: AudioQueue and seeking through file
- From: "Matthew Leon Grinshpun" <email@hidden>
- Date: Wed, 7 May 2008 19:50:16 -0400
I have, oddly enough, had good luck with the following approach:
Change the packet index as you propose, then immediately call
AudioQueueStop on the queue and then, right afterward, call
AudioQueueStart.
This seems to do the trick for me.
-Matthew
On Tue, May 6, 2008 at 1:39 PM, Thomas Clement <email@hidden> wrote:
> Jens Alfke wrote :
>
>
>
> > On 6 May '08, at 7:56 AM, Thomas Clement wrote:
> >
> >
> > > To do that I'm changing the packet index passed to AudioFileReadPackets
> during the playback which is working but there is a delay due to the audio
> being buffered.
> > >
> >
> > I don't know of a good workaround for this. The buffering is what makes
> AudioQueue easy to use, since you don't have to run your code on a real-time
> thread, but it also means high latency.
> >
>
> Their must be a way to clear the buffers. Isn't AudioQueueFlush supposed to
> do that?
>
>
>
> > In addition, the code definitely still seems to have some rough edges in
> the area of stopping and restarting queues. I haven't seen the side effects
> you report, but I've gotten a lot of deadlocks and other misbehavior.
> >
>
> I've seen those side effects too...
> Isn't AudioQueue supposed to be the next great thing for playing audio?
> Should I use something else?
>
>
> Thanks for your help,
>
>
> Thomas
>
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