[Vorbis-dev] How do I start using Vorbis Codec?

[Niranjan Udipi]

 Hi All,

      I see the source codes mdct.c; lpc.c; smallft.c use floats. How do I
modify them to run on a fixed point Processor, with no float functionality?
Is there an integer implementation of Ogg Vorbis Codec?

Thanks,
Niranjan


On Thu, Sep 10, 2009 at 8:12 PM, Ralph Giles <giles at xiph.org> wrote:

> On Thu, Sep 10, 2009 at 2:47 AM, Niranjan Udipi <ucniranjan at gmail.com>
> wrote:
>
> >      I am trying to port Ogg Vorbis Codec on to an embedded Processor.
> The
> > Processor allows me to code computationally intensive part of the program
> on
> > to on-chip hardware. Please let me know which functions in the Codec
> program
> > are computationally intensive? Are there MDCT and FFT computations? Is
> there
> > an implementation tutorial/guide of Ogg Vorbis Codec?
>
> The best place to start for such optimizations is generally to profile
> the established code on your device. Then you can start optimizing the
> portions which take the most time.
>
>  -r
>
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