Re: [LAU] OpenMoko FreeRunner and Real Time Kernel

From: Thomas Vecchione <seablaede@email-addr-hidden>
Date: Mon Jul 14 2008 - 22:52:31 EEST

On Mon, Jul 14, 2008 at 1:25 PM, Ken Restivo <ken@email-addr-hidden> wrote:

> ... In fact PulseAudio is so slow on this phone that the audio hiccups when
> just playing an OGG file using ogg123, if the terminal application is open
> and updating with ogg123's stderr output. I'm told this is to do with the
> ARM's lack of support for atomic operations, which PulseAudio requires, and
> the use of interrupt masking and spinlocks as a hack around that....
>

Hmm does ogg123 use the tremor libraries to play oggs? I know on the
n700/n8*0 we actually have to use the tremor libs to avoid floating point
operations, which the standard ogg libraries do. If it doesn't I might say
that would be a fairly good chunk of your performance problems there.

      Seablade

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Received on Tue Jul 15 00:15:04 2008

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