Rockbox mail archive
Subject: Re: Ogg Vorbis
From: David Nielsen (Lovechild_at_foolclan.com)
On Tuesday 23 July 2002 13:47, Florian Mösch wrote:
> Hi !
> Is there anybody who ever thought about implementing an Ogg Vorbis
> decoder for the Archos Boxes' DSP ?
> I'll try to find out if that would be possible.
> I don't know anything about that special DSP by now (but quite a lot
> about other DSPs) and also almost nothing about Ogg Vorbis (but quite a
> lot about signal processing).
> If you do have any information that could help me feel free to send me
> an e-mail :-)
Of the FAQ.
Q17. I don't see you mentioning other file types on your list of ideas. What
about supporting those?
A17. Pessimist's Answer: At the current time we belive this is not very likely
The Micronas chip (MAS3507) decoder in the archos does not natively
support decoding and there is very little program space in the player to
implement it ourselves. The alternative would be to write a software
decoder as part of the RockBox firmware. However, as much as we love
our players, the computing power of the Archos (SH1 microcontroller) is
not fully sufficent for this need.
Optimist's Answer: We can play any format if only we can write code for
the DSP to decode it. The MAS 3507 (and 3587) are generic DSPs that
simply have MP3 codecs in ROM. We can download new codecs in them and
we will be the first to celebrate if we can get OGG or FLAC or anything
into these DSPs. Unfortunately, we have no docs or tools for writing new
MAS DSP code and Intermetall is very secretive about it. If anyone can
help, please get in touch!
So there's the problem at hand, but anyways, good luck with your quest - I
love personally love it if my Archos box could play oggs..... when it
Page was last modified "Jan 10 2012" The Rockbox Crew