Re: [iiwusynth-devel] Lates CVS changes

[Peter Hanappe]

Antoine Schmitt wrote:
> :::::::::3/12/02::::14:43 +0100::::Peter Hanappe:::::::::
>
> > Maybe there's
> > no need for on demand load and caching if streaming is available.
>
>
> Mmm, these are really different, especially when using the media from a 
> slow medium (CD-Rom, Internet). On these slow medium, it is best of the 
> client app can decide when to do the file access (i.e. explicit 
> loads/unloads).

I didn't think of that.

> > My basic idea for the streaming back-office is a cache
> > of sample buffers. These sample buffers store a part of the full 
> > sample and have the same size, for example 8k.
>
>
> Maybe some optimization for samples/instruments/presets with loops would 
> be nice : if a loop happens during the sustain phase, dont access the 
> file system all the time. It would argue for a custom buffer length for 
> each sample...

Yes, the loop should best be contained in one buffer, if not too large.
However, the synth needs some way to specify which buffer is needed
next. And the soundfont needs some efficient way to test whether the
buffer is in the cache. A buffer number, based on buffers of fixed size,
is an easy way to specify buffers. I'll thinker a bit more about the
problem and the use of variable buffer sizes.

P

> ++ as
>
>
>
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