Vorbis dev - May 2001 - fixed point math

While vorbis works fine sending through the net PCM samples
from a Plan 9 machine (a 686) to a compaq Ipaq, it would be
great if it could work within the ipaq. I think that would 
require fixed point math instead of using the FPU all the times.
the mp3 mad player seems to do just that.

Any plans to go along the same lines and provide a fixed point
decoder?

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On this subject a quick note that could be of interest to porters:

I asked users of the Nomad Jukebox if it'd support Vorbis audio. The
answer is: the reason to why it so soon supported WMA audio, was that
Microsoft ports its decoder to any thinkable platform, and supplies it for
free (I guess) to hardware player manufacturers like Creative Labs. So
they simply didn't port the WMA player themselves, and expect this kind
of luxury in order to support anything beyond MPEG.

The Nomad Jukebox uses the Cirrus Logic EP7212 (StrongArm derivate) with
selectable processor speed and ad hoc audio decoding instruction set. The
chip spec is here:
http://www.cirruslogic.com/design/products/overview/index.cfm?ProductID=111

Could interest someone.

Linus Walleij

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Hello,

I am new to this list, and I am also interested in fixed point math.  It is
the reason I signed on here.  Sometime back, someone wrote that they had
vorbis working on an ipaq, but this was not public code.  Is this code going
to be made public soon?  Is anyone seriously working on making a fixed point
ogg player?  If not I would like to work on one.  I hate having to convert
my ogg files to something else.  Also, I was wondering is there an easy way
to convert the ogg files to a lower bandwidth?  I would like to sometimes
put more music on my ipaq.

Thanks,

Anthony Mills

----- Original Message -----
From: "F.J.Ballesteros" <nemo@gsyc.escet.urjc.es>
To: <vorbis-dev@xiph.org>
Sent: Wednesday, May 30, 2001 7:16 AM
Subject: [vorbis-dev] fixed point math
> While vorbis works fine sending through the net PCM samples
> from a Plan 9 machine (a 686) to a compaq Ipaq, it would be
> great if it could work within the ipaq. I think that would
> require fixed point math instead of using the FPU all the times.
> the mp3 mad player seems to do just that.
>
> Any plans to go along the same lines and provide a fixed point
> decoder?
>
>
> --- >8 ----
> List archives:  http://www.xiph.org/archives/
> Ogg project homepage: http://www.xiph.org/ogg/
> To unsubscribe from this list, send a message to
'vorbis-dev-request@xiph.org'
> containing only the word 'unsubscribe' in the body.  No subject is
needed.
> Unsubscribe messages sent to the list will be ignored/filtered.

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