[LAD] LADSPA latency port, was Re: Let's kill EPAMP???

Steve Harris steve at plugin.org.uk
Tue Jun 3 09:01:56 UTC 2008

On 3 Jun 2008, at 09:52, Chris Cannam wrote:

> On 03/06/2008, Steve Harris <steve at plugin.org.uk> wrote:
>> In LADSPA there's a "magic" control out port called "_latency" or
>> something, that should apply to LV2 aswell, but I'm not sure if the
>> spec says so.
> For the record -- since this is something I've tried to search for in
> the past and have had trouble finding a definitive answer to -- the
> conventional LADSPA port name is apparently "latency", with no
> underscore.
> Some hosts (such as Rosegarden) will accept either "latency" or
> "_latency"; in RG's case that's because I wasn't sure which was
> supposed to be correct when I coded it.  But others (such as Ardour)
> will only accept "latency", as I discovered when I released a plugin
> that used "_latency" and forgot to test it in Ardour first.

Sorry, mea culpa, I should have checked what it was called.

- Steve

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