Vorbis - Oct 2001 - Auto Vorbis

Is anybody going to do something about the fact that vorbis decoder won't
run
on ARM processors (iPaq's, etc) or any (that I know of) car music players?  
How can vorbis expect to compete when one of the most popular uses of MP3 is 
in the car??   Though I would love to switch to vorbis, I am forced to stick 
with MP3 because of this.

I emailed a previous poster here who appeared to be working on a port to ARM, 
but his response was:

"Unfortunately work has halted. It doesn't look like it will ever be
fast
enough with floating point emulation. This puts the effort required to port 
much higher than the time I can affort to give to it.

Still if any thing does happen I will be sure to let you know.

Ian."

SO, I tried the brain behind the open source MP3 player at 
www.pjrc.com/tech/mp3/ , to see about the possibility of adding vorbis support 
to the project, but he had this to say:

"I just looked at the xiph.org pages, and there's no mention of a
hardware
decoder. All of the important parts... in fact everything except the
libvorbisfile library, is labeled as "Beta release". Those libraries
claim to have stable APIs, and it looks like the bitstream format is
now stable... but the encoder doesn't make use of several features of
the bitstream, so there's no real way to test a 3rd party (or even the
official 1.0rc2) vorbis implementation for correct operation with
future vorbis streams.

Worse yet, it appears that everything is based on floating point calcs,
so either a floating point DSP chip or considerable work to translate
the algorithms to integer-only would be needed."

Alas, it seems vorbis falls short of what I need.

-josh
josh@alumni.southern.edu

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Im quite interested in this too for pocketpc.
Someone on vorbisdev (are you on that list?) posted the following..

"

I'm currently working on converting libvorbis to fixed point arithmetic.
I've managed to get all the decoding after the MDCT reverse
transformation
into 24-bit fixed point, including the windowing.


--
Russell King (rmk@arm.linux.org.uk)                The developer of ARM
Linux
             http://www.arm.linux.org.uk/personal/aboutme.html
"
> -----Original Message-----
> From: owner-vorbis@xiph.org [mailto:owner-vorbis@xiph.org] On Behalf
Of
> josh
> Sent: Thursday, 11 October 2001 8:10 AM
> To: vorbis@xiph.org
> Subject: [vorbis] Auto Vorbis
> 
> Is anybody going to do something about the fact that vorbis decoder
won't
> run
> on ARM processors (iPaq's, etc) or any (that I know of) car music
players?
> How can vorbis expect to compete when one of the most popular uses of
MP3
> is
> in the car??   Though I would love to switch to vorbis, I am forced to
> stick
> with MP3 because of this.
> 
> I emailed a previous poster here who appeared to be working on a port
to
> ARM,
> but his response was:
> 
> "Unfortunately work has halted. It doesn't look like it will ever
be
fast
> enough with floating point emulation. This puts the effort required to
> port
> much higher than the time I can affort to give to it.
> 
> Still if any thing does happen I will be sure to let you know.
> 
> Ian."
> 
> SO, I tried the brain behind the open source MP3 player at
> www.pjrc.com/tech/mp3/ , to see about the possibility of adding vorbis
> support
> to the project, but he had this to say:
> 
> "I just looked at the xiph.org pages, and there's no mention of a
hardware
> decoder. All of the important parts... in fact everything except the
> libvorbisfile library, is labeled as "Beta release". Those
libraries
> claim to have stable APIs, and it looks like the bitstream format is
> now stable... but the encoder doesn't make use of several features of
> the bitstream, so there's no real way to test a 3rd party (or even the
> official 1.0rc2) vorbis implementation for correct operation with
> future vorbis streams.
> 
> Worse yet, it appears that everything is based on floating point
calcs,
> so either a floating point DSP chip or considerable work to translate
> the algorithms to integer-only would be needed."
> 
> Alas, it seems vorbis falls short of what I need.
> 
> -josh
> josh@alumni.southern.edu
> 
> 
> --- >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-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.
--- >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
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containing only the word 'unsubscribe' in the body.  No subject is
needed.
Unsubscribe messages sent to the list will be ignored/filtered.