[vorbis-dev] Encoding in Delphi - Help

[Lourens Veen]

On Sat 8 November 2003 21:14, Crock Real wrote:
> > Did you try turning off array bounds checking?
>
> Well, I don't know ... :-) How to do that?
> And if I didn't, it reduces the speed so much???
> 'cause it takes 5 minutes instead of 1...

Well, looking at the uninterleave code, you've got 8 array accesses 
per sample. For each of these, the bounds must be checked. That's 
quite a lot of computation. You should be able to turn it off in 
the compiler options.

> And still don't understand the difference between big and little
> endian. The both way make the same result. So, why are these two
> options? (in the sample_encoder.c there is only 1)

The difference between little and big endian is in the way 16 and 32 
bit values are stored. Little endian stores them with the little 
end (least significant byte) first, while big endian stores them 
the other way around. Big endian is standard on networks and used 
by Motorola machines (ie Macs and PowerPC) and Sun SPARC, while 
little endian is used by x86 machines.