My interpretation is that LV2 means LADSPA Version 2 and thus should be preferred at all times to LADSPA.
On Wed, Sep 9, 2015 at 4:56 PM, IOhannes m zmölnig <zmoel...@iem.at> wrote: > hi richard, paul, stefan and fellow LADders, > > the Debian folks currently are a bit at a loss of the proper > interpretation of the LADSPA_PROPERTY_REALTIME property. > > ladspa.h says: >> /* Property LADSPA_PROPERTY_REALTIME indicates that the plugin has a >> real-time dependency (e.g. listens to a MIDI device) and so its >> output must not be cached or subject to significant latency. */ > > the discussion started about a year ago (see [760758]), and it seems > that there are two opposing interpretations of that property: > > > #1 setting the property indicates to the host, that the plugin must not > be used in a non-realtime environment. > this means that a plugin that has this property set, must not be used > for batch processing, e.g. because it uses wall-clocked input (like > MIDI-devices) that simply won't deliver proper input when running at a > speed that is decoupled from wall clock. > > OR > > #2 setting the property indicates to the host, that the plugin can be > run at a lower (timing) priority; so the host can deliberately add > latency without compromising the usefulness of the full processing > chain. that would be mostly for plugins that do not do any input -> > output processing, but only take input (e.g. metering, recording). > > > > that's just a quick summary. there's more arguments in the bugreport > [760758]. > > personally i lean towards #1 (as i don't see much use cases for the > second interpretation), but given that someone as deeply involved into > linux audio as fons favours #2, i would like to ask the creators of > LADSPA for their canonical view. > > > thanks for your insights, > > gfmadsr > IOhannes > > > > [760758] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=760758 > > > _______________________________________________ > Linux-audio-dev mailing list > Linux-audio-dev@lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-dev > _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev