Hi All,
It is true about the patents that only encoders are charged with royalties and decoders you can make for free. Thinking about this block for a long time, we got to think that a hardware approach should not give such a good benefit in any respect (size, power, speed??, flexibility) but if you think otherwise I would like to hear it. Also it would be nice to support the other standards such as Ogg (which is the free one).
I also wanted to add that there is a nice academic work that was available over the net with VHDL code on implementing a decoder for MP3 half CPU half DSP based - take a look - don't remember where it is.
Lior
volodya@mindspring.com
Sent by: owner-cores@opencores.org
07/18/2001 10:17 AM AST
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Subject: Re: [oc] new project...MP3 (audio) core?
On Wed, 18 Jul 2001, Dautel, Rob wrote:
> Hi all,
>
> I didn't see anything in the archive about this so here goes...
>
> I would like to get feedback on building an MP3 (audio layer) core. Any
> interest?
>
> I've been working on this on my own for a while, mostly info gathering, and
> looking over GPL and other free software code. Basically, it would be a
> complete hardware based decoder (and later an encoder) with no software
> overhead, possibly some microcode in the en/decoder itself, I'm not sure
> yet, but none other than initial setup for the host processor to do.
>
> The project would be Verilog based and could even support Wishbone. I'll
> send out a URL pointing to more info once I get the last of the block
> diagrams worked out. In the meantime, any feedback would be welcome.
Doesn't Fraunhofer have patents on MP3, especially on hardware
implementations ? Perhaps you would be better off trying Ogg Vorbis...
Vladimir Dergachev
>
> thanks,
>
> -rob.
>
> "Mmmm. Tastes like chicken!"
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