On 29 Jan 2007, at 16:51, Florian Schmidt wrote:
On Monday 29 January 2007 09:08, Steve Harris wrote:
Ah, well the host is not supposed to change port values during run()
anyway, the idea in LADSPA (and LV2) is that the host should chop the
run() block where port values change. In practice not all hosts do
that, some just pick a suitably small block size, eg. 32 frames and
quantise the changes to that rate.
Hi, let me chime in because it kidna fits into the subject.
I have defined two (very very simple LV2 extensions):
"The extension’s URI is
http://tapas.affenbande.org/lv2/ext/fixed-buffersize
All that a plugin needs to check is whether a host feature with
this URI
exists and the data will be a uint32 containing the buffersize.
The host is only allowed to call the plugin’s run function with a
buffersize
equal to the one specified by the host feature.
There’s a second extension:
http://tapas.affenbande.org/lv2/ext/power-of-two-buffersize
which is identical to above but with the additional requirement
that the fixed
buffersize has to be a power of two."
Great idea. I've got some plugins that will benefit a lot by this. We
should link to known extensions on the http://lv2plug.in/ site.
FWIW, my provisional plan was to wait until it seemed like time for a
LV2 1.1 (hopefully not too soon :), then roll all the "popular"
extensions into that.
It doesn't make a huge amount of difference whether their included or
not though.
Before you ask, no I don't have a definition for "popular".
- Steve
