[Vorbis] Ogg Vorbis on DSP platform?

[Michiel Toneman]

Have a look at the open source Rockbox project
( http://www.rockbox.org/ ). They have a port to the iRiver iHP1x0
players which are coldfire based. They have a hole slew of codecs, all
off them fixed point, some of which (specifically mp3 and ogg vorbis)
are well optimised for the coldfire platform (128kbit mp3 CBR runs
realtime at 48Mhz, ogg requires a little more power).

It is a sweet upgrade of my little player :-)

Regards,

Michiel


On Thu, 2005-07-28 at 10:10 +0200, Gerold Schrutz wrote:
> Hello,
>  
> I'd like to develop a codec for the Ogg Vorbis algorithm on a DSP
> (controller?) hardware platform. 
>  
> We've got 2 (3) main applications:
> 1) the codec should be used for 2 channel simultaneous message
> recording/playback on flash EPROM.
> 2) the codec should be used for streaming audio over IP or
> Ethernet/intranet networks.
> 3) for large system, the PC should serve as a storing device
>  
> We are looking for soft- and hardware, we can integrate into our
> system. Our system has got a coldfire controller running Linux. On a
> system bus we are able to plug in different module like DSP's, ADC's,
> DAC's, other controllers ...
>  
> Here are some questions:
> * What resources do I need in terms of DSP-Power, internal/external
> memory, ...?
> * do I get the source code? (I need to adapt it to my application)
> * Are there codecs only for single channels? (I need two independent
> audio channels)
> * How about streaming software?
>  
> Thanks a lot for your answer.
>  
> G. Schrutz
>  
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