[Speex-dev] memory usage
tunkeat at gmail.com
Mon Feb 28 16:29:02 PST 2005
jean-marc: i think we can remove spx_sig_t *orig.
but am not sure about exc2Buf. is it for extension?
On Mon, 28 Feb 2005 12:42:38 -0500, Jean-Marc Valin
<Jean-Marc.Valin at usherbrooke.ca> wrote:
> I looked at the code I think there are still places where you can reduce
> memory. For example, I think bufSize can be reduced to around 400
> (instead of 640). Also, in most cases, the stack of the encoder and
> decoder are not used at the same time. If you use complexity 1, you can
> save a lot on the stack too.
> Le lundi 28 février 2005 à 10:59 +0800, tunkeat a écrit :
> > hi Alfred,
> > >I am currently trying to port speex v1.1.6 to a microcontroller with
> > >very limited memory (<64Kbyte RAM).
> > if forced to the wall, you can try below (need to "rewrite" the code a little):
> > unless i am very much mistaken, you can do "dynamic allocation" for
> > some of the memory. these memories are only required when you are
> > running eg speex_encode for the current frame. one example would be
> > st->qlsp. others are more "static" eg. st->inBuf which you basically cannot
> > do much with.
> > hope this helps.
> > rgds,
> > tk
> > _______________________________________________
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> > Speex-dev at xiph.org
> > http://lists.xiph.org/mailman/listinfo/speex-dev
> Jean-Marc Valin <Jean-Marc.Valin at USherbrooke.ca>
> Université de Sherbrooke
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