Re: more sample formats? too little place left.

[Takashi Iwai <tiwai@suse.de>]

At Sun, 2 Jun 2002 03:22:00 +0300,
Ville Syrjälä wrote:
> 
> On Fri, May 31, 2002 at 04:23:23PM +0200, Takashi Iwai wrote:
> > Hi,
> > 
> > it seems that USB audio supports 24 bit sample in 3 bytes format.
> > and additionally i've found there are 20bit and 18bit sample formats.
> > the world is large...
> > 
> > an arising problem is that the number of formats is limited to 32.
> > already 26 format types are used.  the rest are only 6, and not enough
> > if we put BE/LE and signed/unsigned for new formats, too.
> > 
> > how can we solve this?  extend to 64bit?  no, it has too overhead.
> > add a new field for special formats?
> 
> What do you mean by overhead? Binary compatibility maybe?

perhaps not too much overhead as i thought.
binary compatibility might be a problem, although alsa-lib can hide
the change of its own structs.

but the question is whether we should just add such new formats as new
bits, or define something more ordinary.


Takashi

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