[Numpy-discussion] casting in numarray

Joachim Boomberschloss boomberschloss at yahoo.com
Mon Mar 21 01:59:06 CST 2005


Thanks, that's exactly what I needed!

--- Thomas Grill <gr at grrrr.org> wrote:
> Hi Joachim,
> this is what i do in my Python extension of the Pure
> Data realtime 
> modular system. You have to create a Python buffer
> object pointing to 
> your memory location and then create a numarray from
> that. It's quite easy.
> See the code in
>
http://cvs.sourceforge.net/viewcvs.py/pure-data/externals/grill/py/source/
> files pybuffer.h and pybuffer.cpp
> 
> best greetings,
> Thomas
> 
> Joachim Boomberschloss schrieb:
> 
> >Hi,
> >
> >I'm using numarray for an audio-related application
> as
> >a buffer in an audio-processing pipeline. I would
> like
> >to be able to allocate the buffer in advance and
> later
> >regard it as a buffer of 8bit or 16bit samples as
> >appropriate, but in numarray, casting always
> produces
> >a new array, which I don't want. How difficult
> should
> >it be to make it possible to create an array using
> an
> >exsisting pre-allocated buffer to act as an
> interface
> >to that buffer? Also, if others consider it useful,
> is
> >there anyone willing to guide me through the code
> in
> >doing so?
> >
> >Thanks,
> >
> >Joe
> >
> >
> >		
> >__________________________________ 
> >Do you Yahoo!? 
> >Yahoo! Small Business - Try our new resources site!
> >http://smallbusiness.yahoo.com/resources/ 
> >
> >
>
>-------------------------------------------------------
> >SF email is sponsored by - The IT Product Guide
> >Read honest & candid reviews on hundreds of IT
> Products from real users.
> >Discover which products truly live up to the hype.
> Start reading now.
>
>http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
> >_______________________________________________
> >Numpy-discussion mailing list
> >Numpy-discussion at lists.sourceforge.net
>
>https://lists.sourceforge.net/lists/listinfo/numpy-discussion
> >
> >  
> >
> 
> -- 
> --->----->->----->--
> Thomas Grill
> gr at grrrr.org
> +43 699 19715543
> 
> 


		
__________________________________ 
Do you Yahoo!? 
Yahoo! Small Business - Try our new resources site!
http://smallbusiness.yahoo.com/resources/ 




More information about the Numpy-discussion mailing list