[RFC] New audio output architecture

Jean-Paul Saman saman at natlab.research.philips.com
Fri May 3 11:12:45 CEST 2002

Christophe Massiot wrote:
> À (At) 12:03 +0200 2/05/2002, Jean-Paul Saman écrivait (wrote) :
>> 1) Floating point calculations on a CPU with no hardware FPU support 
>> is not going to work. So vlc needs some integer based calculations 
>> here for such systems (even embedded ones).
>> 2) If you say to use float32 as native format, does that automatically 
>> mean floating point calculations? That is the question here.
> I believe so. That is why I proposed to support fixed24 as well.
You could do foating point calculations in integers. One for the full 
numbers and one for the fractions. If you do this then you also need 
correction calculation to now how far you will be off the real float.

Support for both formats does seem like a good thing to me. It gives you 
flexibility across platforms (those with FPU and those without). I am a 
fan of your proposal and Gildas additions.

Kind greetings,

Jean-Paul Saman

Software Architect

e-mail (work): saman at natlab.research.philips.com
phone  (work): 040 27 42909
Ordina TA,
Science Park Eindhoven 5602, Postbus 293, 5600 AG Eindhoven
e-mail : jean-paul.saman at ordina.nl
phone  : 040 2601200
fax    : 040 2601199

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