Re: [ecasound] 1.6.x development info

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Subject: Re: [ecasound] 1.6.x development info
From: Kai Vehmanen (
Date: Wed Oct 27 1999 - 02:11:43 EEST

On Sun, 24 Oct 1999 wrote:

> > co_add_controller -kos:1,50,500,0.5,0.0
> It could be a good idea to use hyphens instead of underlines in
> command names, so we wouldn't waste those precious microsecs
> pressing shift.

Hey, you have two hands, right? ;) Seriously, I tend to prefer
underlines. In many places, hyphens can't be used to replace
whitespace (C/C++ routine names!). And also, command line arguments
always start with a hyphen... Oh well, I'll think about this. ;)

>> cop_select 2 // - select chainop's 2nd parameter
>> cop_set 500 // - change parameter value to 500
> `cop-set 2, 500' and the like might be nice.

There are two issues involved: 1) Does one line of input equal
to one command? Currently you can "pipe" command-pairs, but I guess
this isn't very useful. 2) Where to draw the line? I might as well
add commands like ...

        cop_set 2,1,4,2,500

... which will affect the 2nd chainsetup, its 1st chain, the
4th chain operator, its 2nd parameter and change the value to 500.
Not very handy. ;) But I guess 'cop_set 2,500' would be a reasonable

>> ... and so on. I've tried to use the command-line syntax whenever
>> possible. This should make iactive-mode easier to use.
> How about direct command-line commands? Like just writing -foo:1,2,3
> at the (ecasound) prompt without preceding blah_blah_blah commands.

Well, there's a small logical problem. Users look at ecasound's
manual and there's "cop_remove", "cop_set", "cop_add_controller", but
hey, where's "cop_add"!??! Using "-ea:300", "-ec:300,0.2" directly
would be handy, but not very intuitive. Hmm, but I guess we could
have them both. "cop_add -efl:400" and "-efl:400" would do the same
thing. This sounds like a good compromise.

Kai Vehmanen <> -------- CS, University of Turku, Finland
 . - linux audio processing
 . - ambient-idm-rock-... mp3/ra/wav
 . - music&movies (in Finnish)

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