9 Dec
2002
9 Dec
'02
4:51 p.m.
On Monday 09 December 2002 18.49, Steve Harris wrote:
Exactly.
Yes indeed. Missing in most other APIs as well. (VST as well, IIRC.)
On Mon, Dec 09, 2002 at 05:08:29PM +0100, David
Olofson wrote:
Good! If the host really wants to know it was waste cycles doing
it. Most of the time the host wont want to know, so it will just
waste the plugin cycles trying to calculate when its silent
(especially if it has to inspect internal buffers). I guess you
could indicate to the plugin wether you care, but thats getting
more complex.
Yeah... *hehe* Good point.
OK, that
sounds useful, but also really hard. Realisticly a
reverb can't tell when its gone to zero except by inspection
and guesswork.
Well, just don't do it if it's too hard. Keep in mind though,
that by doing that, you're only moving the problem over to the
host and/or the user. Well,
there's always the output meter hack. :-)
Yep, and that requires no support from the plugin. I guess there
is a reason why most plugin APIs have this feature
- but there must also be a reason why so many plugins don't
implement it. :-)
One thing we should have is a latency indication. Its blantantly
missing from ladspa. Though its probably only useful on inline processing
plugins, not
instruments.
On the contrary, I think it's *very* important for instruments as
well; especially with percussive sounds. If you want to use two
synths together, and one or both for some reason have non-zero event
timestamp -> audio output latency, you'd really want the host to be
able to compensate for it, so you can start tweaking with the outputs
in exact sync.
I've mixed percussion sounds from SoundFonts on PCI cards with MIDI
syths. Need I say more? :-)
//David Olofson - Programmer, Composer, Open Source Advocate
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