[Vorbis-dev] any optimizations possible in OGG or vorbis to reduce time?

[Sumit Chatterjee]

I dont understand exactly the terms that you have asked. Basically if I have
a continuous stream to be sent out - a computational delay of 50-100ms is
still manageable.

Regarding my platform:
   - its on Windows and my encode is running under realtime priority.
   - my audio capture is every 500ms.
   - And my OGG container is reduced to 2KB. So a min of 6KB data is flushed
out after every ~600ms from the encoder

I basically want to reduce the encoding time to generate a packet of 6KB
from 200-300 ms to <100ms always, so that I can support least setup latency
in my radio application.

Thanks
Sumit


2009/9/3 Gregory Maxwell <gmaxwell at gmail.com>

> On Thu, Sep 3, 2009 at 2:26 PM, Sumit Chatterjee<getsumit at gmail.com>
> wrote:
> > Respected all,
> >     I have been able to make my whole setup ready with OGG VORBIS encoder
> > and decoder as provided by the open source libraries. I am very happy
> with
> > the result. I have one concern in the same. : Can the performance of the
> > encoder be enhanced? Currently for 44KHz stream it is taking upto 300ms
> to
> > encode 500-600ms of data. I wanted a figure well within 500 ms.
> >     Can I get a starting point that I can attack either in OGG library or
> in
> > VORBIS encoder library...??
>
>
> Greetings. Is your concern algorithmic delay or computational
> complexity?  If the latter— what platform are you testing on?  The
> encoder is a decent multiple of realtime on typical desktop processors
> today.
>
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